Disc Mower Conditioner - MidTN Equipment & Services · The Disc Mower Conditioner model and serial...

2345/2365Disc MowerConditioner

OPERATOR’S MANUAL

Form No.908047Replaces908004

GEHL

NEW AGRICULTURAL EQUIPMENT

DISC MOWER CONDITIONER

WARRANTY

GEHL AGRICULTURE DIVISION of the GEHL COMPANY, hereinafter referred to as Gehl,warrants new Gehl Disc Mower Conditioners and attachments, to the Original RetailPurchaser to be free from defects in material and workmanship for a period of twelve (12)months {ninety (90) days for commercial/custom use} from the Warranty Start Date, exceptas set forth below:

The Cutterbar is warranted for a period of two (2) years from the Warranty Start Datefor replacement only, labor and freight excluded, unless defect occurs during initialtwelve (12) month warranty period.

GEHL AGRICULTURE WARRANTY INCLUDES:Genuine Gehl parts and labor costs required to repair or replace equipment at the sellingdealer’s business location.

GEHL MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND,EXPRESS OR IMPLIED (INCLUDING THE IMPLIED WARRANTIES OFMERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE), EXCEPT ASEXPRESSLY STATED IN THIS WARRANTY STATEMENT.

GEHL WARRANTY DOES NOT INCLUDE:1. Transportation to selling dealer’s business location or, at the option of the Original Retail Purchaser,

the cost of a service call.

2. Used equipment.

3. Components covered by their own non-Gehl warranties, such as tires, trade accessories andengines.

4. Normal maintenance service and expendable, high wear items.

5. Repairs or adjustments caused by: improper use; non-intended use; failure to follow recommendedmaintenance procedures; use of unauthorized attachments; accident or other casualty.

6. Liability for incidental or consequential damages of any type, including, but not limited to lost profitsor expenses of acquiring replacement equipment.

No agent, employee or representative of Gehl has any authority to bind Gehl to any warranty except asspecifically set forth herein. Any of these limitations excluded by local law shall be deemed deleted from thiswarranty; all other terms will continue to apply.

Printed in U.S.A. 1 908047/BP0303

TABLE OF CONTENTS

Warranty Inside Front Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1 Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2 Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 3 Checklists 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 4 Safety 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 5 Controls & Safety Equipment 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 6 Operation 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 7 Adjustments 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 8 Lubrication 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 9 Service 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 10 Preparing For Field Operation 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 11 Transporting 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 12 Storage 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 13 Troubleshooting 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 14 Set-up & Assembly 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 15 Optional Equipment & Accessories 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 16 Decal Locations 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 17 Maintenance Log 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Standard Hardware Torque Data Inside Back Cover. . . . . . . . . . . . . . . . . . . . . . . .

908047/BP0303 2 Printed in U.S.A.

CHAPTER 1INTRODUCTION

Your decision to purchase this piece of GEHL equip-ment was a good one. We are sure that your decision wascarefully considered and that you are looking forward tomany years of work from this machine.

We as a Company have invested a great deal of time andeffort in developing our lines of equipment. Theequipment you have purchased is built with a great dealof pride and designed to give you long life, efficientoperation, durability and dependability.

This manual was developed specifically for the machineyou have purchased. The information within is for yourassistance in preparing, adjusting, maintaining andservicing your machine. More importantly, this manualprovides an operating plan for safe and proper use ofyour machine. Major points of safe operation aredetailed in the SAFETY chapter of this manual. Referto the Table of Contents for an outline (by chapters) ofthis manual. Use the Index, located at the back of thismanual, for specific chapter and topic/page numberreferences.

This GEHL equipment is provided with a pocket,located on the underside of the transmission cover, forstoring the Operator’s Manual. After using it, pleasereturn the manual to the pocket and keep it with the unitat all times! Furthermore, we recommend that if thismachine is re-sold, this manual accompany the unit.

Modern machinery has become moresophisticated and, with that in mind, GEHLCompany asks that you read and understandthe contents of this manual COMPLETELY andbecome familiar with your new machine,BEFORE attempting to operate it.Our wide dealership network stands by to provide youwith any assistance you may require, including genuineGEHL service parts. All parts should be obtained fromor ordered through your GEHL dealer. Give completeinformation about the part and include the model andserial numbers of your machine. Record the serialnumber in the space provided on the pictorial, as a handyrecord for quick reference.

The Disc Mower Conditioner model and serial numbersare on a plate located on the left side of the main framenear the drawbar anchor point. “Right” and “Left” aredetermined from a position standing behind the DiscMower Conditioner, facing the direction of travel. Fromthis position the drawbar is on the left.

Typical Model & Serial Number Plate

DC23

COMPANY

W E S T B E N D , W I 5 3 0 9 5 U S A

M O D E L N O .

S E R I A L N O .

(Fill In)

(Fill In)

Standard hardware torques appear in a chart at the endof the manual.

GEHL Company reserves the right to make changes orimprovements in the design or construction of any partwithout incurring the obligation to install such changeson any unit previously delivered.

Throughout this manual, information is provided whichis set in italic type and introduced by the word NOTE orIMPORTANT. BE SURE to read carefully and complywith the message or directive given. Following thisinformation will improve your operating or mainte-nance efficiency, help you to avoid costly breakdownsor unnecessary damage and extend your machine’s life.

The GEHL Company, in cooperation with theAmerican Society of Agricultural Engineersand the Society of Automotive Engineers, hasadopted this SAFETY ALERT SYMBOL

to pinpoint characteristics which, if notproperly followed, can create a safety hazard.When you see this symbol in this manual or onthe unit itself, you are reminded to BE ALERT!Your personal safety is involved.


CHAPTER 2SPECIFICATIONS

All Dimensions are in Inches (Millimeters) Unless Otherwise Noted

Models & Descriptions DC2345 & DC2365. . . . . . .

Number of Discs 7 - DC2345; 8 - DC2365. . . . . . . .

Total Number of Knives 14 - DC2345; 16 - 2365. . . .

Cutting Width DC2345 - 109 (2778). . . . . . . . . . . . . .

DC2365 - 122 (3110)Overall Length Approx. 202 (5130). . . . . . . . . . . . . .

Operating Height Approx. 36-1/2 (930). . . . . . . . . . .

Transport Width DC2345 - 124 (3150). . . . . . . . . . . .

DC2365 - 139 (3531)Minimum Power Required DC2345 - 65hp (48kW). .

DC2365 - 75hp (56kW)Tires Two 9.5L x 14, inflated to. . . . . . . . . . . . . . . . .

18 PSI (126 kPa) on the left sideand 36 PSI (252 kPa) on the right side

Weights (Approximate):

DC2345 3825 lb (1739 kg). . . . . . . . . . . . . . . . . . DC2365 4100 lb (1864 kg). . . . . . . . . . . . . . . . . .

Conditioner Roller Diameter 9.5 (241). . . . . . . . . . . .

Conditioner Roller Length DC2345 - 91 (2311). . . . .

DC2365 - 104 (2642)Conditioner Roller Speed 730 RPM. . . . . . . . . . . . . .

Cutting Height 1-1/4 to 3-1/4 (32 to 83). . . . . . . . . . . up to 5-1/4 (135) with Optional Tall Skid Shoes

Disc Speed 3000 RPM. . . . . . . . . . . . . . . . . . . . . . . .

Knife Tip Speed 181 mph (292 km/h). . . . . . . . . . . . .

Disc Angle 0° to 6° down. . . . . . . . . . . . . . . . . . . . . .

Volumetric Oil Capacities:

Main Drive Gearbox 4.75 Qts. (4.5 Liters). . . . . . . .

Top Roller Chain Drive Oil Bath 3 Qts. (2.84 Liters).

Cutterbar

DC2345 4 U.S. Pints (1.9 Liters). . . . . . . . . . . . . DC2365 4-1/2 U.S. Pints (2.13 Liters). . . . . . . . .

Standard Features:

Overrunning Slip Clutch-protected Telescoping PTODrive Line

Reversible Twisted Cutting Knives

Replaceable Skid Shoes to Regulate Cutting Heightwith the use of Disc Angle Adjustment

Dual Hydraulic Cylinder Lift System

Hydraulic Swing Cylinder for Drawbar (Tongue)positioning

Adjustable Deflectors for Windrowor Swath forming

Intermeshing Rubber Rollers

Quick Attach Drawbar Extension

Optional Features (Customer Selected):

1000 RPM Drive Line

540 RPM Drive Line

Safety Chain

Tall Skid Shoes

Transport Lights

Hydraulic Tilt Kit (For units After Serial Number7800–2345 & 9800–2365 ONLY)


INTENTIONALLY BLANK


CHAPTER 3CHECKLISTS

PRE-DELIVERYAfter the Disc Mower Conditioner has been completelyset-up, the following inspections MUST be made beforedelivering it to the Customer. Check off each item afterprescribed action is taken.

Check that:

� Disc Mower Conditioner has been completely and proper-ly set-up according to details in this manual.

� All grease fittings have been properly lubricated and thatthe Gearbox, Cutterbar and Roller Chain Sump have beenfilled to their proper operating levels. See the LubricationChapter.

� All Guards, Shields and Decals are in place and securelyattached.

� All fasteners are properly secured.

� All adjustments have been made to comply with settingsgiven in the Adjustments Chapter.

� Tires are properly mounted and inflated to 18 PSI (126kPa) on left side and 36 PSI (252 kPa) on the right side.

� Record the Model and Serial Numbers of this unit on thispage and page 2.

Hook the Disc Mower Conditioner up to theappropriate 540 or 1000 RPM tractor andtest-run the unit while checking that properoperation is exhibited by all components.Check that:

� All Blades, Discs and Rollers are turning freely.

� All Mechanisms are operating smoothly.

� The Hydraulic Hose connections are NOT leaking underpressure and that lift mechanism is operating smoothlyand properly.

I acknowledge that pre-delivery service was performedon this unit as outlined above.

Dealership’s Name

Dealer Representative’s Name

Date Checklist Filled out

Model Number Serial Number

DELIVERY CHECKLISTThe following Checklist is an important reminder ofvaluable information that MUST be passed on to theCustomer at the time the unit is delivered. Check offeach item as you explain it to this Customer.

� Give the Operator’s Manual to the Customer. Instructthem to be sure to read and completely understand itscontents BEFORE attempting to operate the unit.

� Explain and review all the SAFETY information with theCustomer.

� Explain that regular lubrication is required for continuedproper operation and long life. Review the Lubricationinformation in this manual with the Customer,emphasizing that the oil in the Cutterbar and the GearboxMUST be changed after the first 10 hours of operation.

� Explain the function of the Overrunning and Slip Clutchon the Gearbox input to the Customer.

� Explain that unit components may continue to rotate afterthe tractor PTO is disengaged and the customer MUSTwait for all movement to stop BEFORE approaching theunit.

� Explain the function and use of the Transport Locks forthe Header Lift and Hydraulic Drawbar Positioner to theCustomer.

� Demonstrate the proper use of the Locking Couplers onboth ends of the Telescoping PTO Drive to the Customer.

� Completely fill out Owner’s registration, includingCustomer’s signature, and return it to the company.

I acknowledge that the above points were reviewed withme at the time of delivery.

Customer’s Signature

Date Delivered

(Dealer’s File Copy)

Rem

ove

Dea

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op

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Per

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INTENTIONALLY BLANK(To be removed as Dealer’s File Copy)


CHAPTER 3CHECKLISTS

PRE-DELIVERYAfter the Disc Mower Conditioner has been completelyset-up, the following inspections MUST be made beforedelivering it to the Customer. Check off each item afterprescribed action is taken.Check that:

� Disc Mower Conditioner has been completely and proper-ly set-up according to details in this manual.

� All grease fittings have been properly lubricated and thatthe Gearbox, Cutterbar and Roller Chain Sump have beenfilled to their proper operating levels. See the LubricationChapter.

� All Guards, Shields and Decals are in place and securelyattached.

� All fasteners are properly secured.

� All adjustments have been made to comply with settingsgiven in the Adjustments Chapter.

� Tires are properly mounted and inflated to 18 PSI (126kPa) on left side and 36 PSI (252 kPa) on the right side.

� Record the Model and Serial Numbers of this unit on thispage and page 2.

Hook the Disc Mower Conditioner up to theappropriate 540 or 1000 RPM tractor andtest-run the unit while checking that properoperation is exhibited by all components.Check that:

� All Blades, Discs and Rollers are turning freely.

� All Mechanisms are operating smoothly.

� The Hydraulic Hose connections are NOT leaking underpressure and that lift mechanism is operating smoothlyand properly.

I acknowledge that pre-delivery service was performedon this unit as outlined above.

Dealership’s Name

Dealer Representative’s Name

Date Checklist Filled out

Model Number Serial Number

DELIVERY CHECKLISTThe following Checklist is an important reminder ofvaluable information that MUST be passed on to theCustomer at the time the unit is delivered. Check offeach item as you explain it to the Customer.

� Give the Operator’s Manual to the Customer. Instructthem to be sure to read and completely understand itscontents BEFORE attempting to operate this unit.

� Explain and review all the SAFETY information with theCustomer.

� Explain that regular lubrication is required for continuedproper operation and long life. Review the Lubricationinformation in this manual with the Customer,emphasizing that the oil in the Cutterbar and the GearboxMUST be changed after the first 10 hours of operation.

� Explain the function of the Overrunning and Slip Clutchon the Gearbox input to the Customer.

� Explain that unit components may continue to rotate afterthe tractor PTO is disengaged and the customer MUSTwait for all movement to stop BEFORE approaching theunit.

� Explain the function and use of the Transport Locks forthe Header Lift and Hydraulic Drawbar Positioner to theCustomer.

� Demonstrate the proper use of the Locking Couplers onboth ends of the Telescoping PTO Drive to the Customer.

� Completely fill out Owner’s registration, includingCustomer’s signature, and return it to the company.

I acknowledge that the above points were reviewed withme at the time of delivery.

Customer’s Signature

Date Delivered

(Pages 5 & 6 Have Been Removed at Perforation)


CHAPTER 4

SAFETYThe above Safety Alert Symbol means ATTENTION!BECOME ALERT! YOUR SAFETY ISINVOLVED! It stresses an attitude of ‘‘Heads Up forSafety’’ and can be found throughout this Operator’sManual and on the machine itself.

BEFORE YOU ATTEMPT TO OPERATE THISEQUIPMENT, READ AND STUDY THEFOLLOWING SAFETY INFORMATION. INADDITION, BE SURE THAT EVERYINDIVIDUAL WHO OPERATES OR WORKSWITH THIS EQUIPMENT, WHETHER FAMILYMEMBER OR EMPLOYEE, IS FAMILIAR WITHTHESE SAFETY PRECAUTIONS.

Our Company ALWAYS takes the operator and his/hersafety into consideration when designing its machineryand guards exposed moving parts for his/her protection.However, some areas can NOT be guarded or shieldedin order to assure proper operation. Furthermore, thisOperator’s Manual, and Decals on the machine, warn ofadditional hazards and should be read and observedclosely.

DANGER‘‘DANGER’’ indicates an imminently hazard-ous situation which, if not avoided, will resultin death or serious injury.

WARNING‘‘WARNING’’ indicates a potentially hazard-ous situation which, if not avoided, couldresult in death or serious injury.

CAUTION‘‘CAUTION’’ indicates a potentially hazardoussituation which, if not avoided, may result inminor or moderate injury. It may also alertagainst unsafe practices.

MANDATORY SAFETY SHUTDOWNPROCEDURE

BEFORE unclogging, cleaning, adjusting,lubricating or servicing the unit:

1. Disengage the tractor PTO.

2. Place the tractor transmission in park and/orlock brake pedals to prevent tractor move-ment, then shut off the tractor engine.

3. Remove the ignition key and take it with you.

4. Wait for all movement to stop.

5. Remove the Telescoping PTO Drive and ALLpower connections from the tractor.

ONLY when you have taken these precautions canyou be sure it is safe to proceed. Failure to follow theabove procedure could lead to death or seriousbodily injury.

ADDITIONAL SAFETY REMINDERSIt is recommended that the towing tractor be equippedwith an enclosed operator’s cab with safety glass orpolycarbonate windows, or with protective meshscreens.

Some photographs used in this manual may show doors,guards and shields open or removed for illustrationpurposes ONLY. BE SURE that all doors, guards andshields are in their proper operating positions andsecurely attached BEFORE operating unit.

BE SURE the hitchjack locking pin is completelyengaged and that the machine is properly blocked andprevented from rolling BEFORE disconnecting the unitfrom the tractor!

ALWAYS follow state and local regulations regardinguse of a safety chain and transport lighting when towingfarm equipment on public highways. Restrict highwaytowing speeds to 20 mph (32 km/h) maximum. BESURE to check with local law enforcement agencies foryour own particular regulations. Unless otherwise pro-hibited, use a Slow–Moving Vehicle (SMV) emblem.

Only a safety chain (NOT an elastic or nylon/plastic towstrap) should be used to retain the connection betweenthe towing and towed machines, in the event ofseparation of the primary attaching system.


SAFETY(Continued)

ALWAYS wear safety glasses with side shields whenstriking metal against metal. It is further recommendedthat a softer (non-chipable) material be used to cushionthe blow. Failure to heed could lead to serious injury tothe eye(s) or other parts of the body.

Good safety practice dictates that you NEVER tow animplement without brakes unless the towing vehicleweighs at least one-and-one half (1-1/2) times theweight of the towed implement and its load. For anypublic highway travel and to be in compliance with thisrule, BE SURE that your tractor is heavy enough tocounterbalance the weight of the Disc Mower Condi-tioner.

Our Company does NOT sell replacement tires. Tiremounting, service or inflation can be dangerous.Whenever possible, trained personnel should be calledto service and mount tires, following the tire manufac-turer’s instructions. If you do not have such instructions,contact your tire dealer or our Company. In any event,to avoid possible fatal or serious injury, follow thespecific directives given in the “Preparing for FieldOperation” chapter of this manual.

BEFORE using the disc mower conditioner, inspect thecutting knives, discs and attaching hardware. Replaceany worn or damaged parts immediately. Knives MUSTbe replaced in pairs.

Regularly inspect the disc mower conditioner’s curtain.Replace curtain if it is worn or damaged. NEVERoperate the unit unless the protective curtain is in placeand hanging down.

To ensure continued safe operation, replace damaged orworn-out parts with genuine Gehl service parts,BEFORE attempting to operate this equipment.

Fields to be mowed must be free of foreign objects.Keep people 100 feet (30 m) or more away from unitduring operation. Do not engage PTO unless unit is inoperating position. If an obstruction is hit duringoperation, stop the unit immediately – follow theMANDATORY SAFETY SHUTDOWN PROCE-DURE (page 8). Check the entire unit before continuinguse.

REMEMBER, it is the owner’s responsibility forcommunicating information on the safe use and propermaintenance of this machine.

NEVER use your hands to search for hydraulic fluidleaks; use a piece of cardboard. Escaping fluid underpressure can be invisible and can penetrate the skin andcause serious injury! If any fluid is injected into yourskin, see a doctor at once! Injected fluid MUST BEsurgically removed by a doctor familiar with this type ofinjury or gangrene may result.

DO NOT approach the unit until the discs and condi-tioner rolls have stopped rotating! Both mechanisms cancontinue to operate after the PTO is disengaged!

DO NOT attempt to hand feed or kick any crop ormaterial into this machine!

Always lower header to the ground when parking. If unitis parked in the transport position, BE SURE to engagetransport locks.

WARNINGDO NOT use the DC2345 and DC2365 DiscMower Conditioners for roadside cutting. DONOT operate near people.

125476


SAFETY(Continued)

115974


SAFETY(Continued)

093466

�

091444

143007

DecalUnder

Shields

093465


SAFETY(Continued)

093367

093653


SAFETY(Continued)

093373


CHAPTER 5CONTROLS & SAFETY EQUIPMENT

The Disc Mower Conditioner is provided with severalfeatures for operator safety and convenience.

CAUTIONBEFORE operating this equipment, know howto STOP Disc Mower Conditioner operationBEFORE starting it. Become familiar with andknow how to use ALL safety devices and con-trols on the Disc Mower Conditioner.

DRAWBAR HITCH POSITIONING

CAUTIONBEFORE transporting the Disc Mower Condi-tioner on a public highway, BE SURE to installand lock the positioner cylinder in the re-tracted “transport” position with the trans-port lock valve provided.

Repositioning the Disc Mower Conditioner Drawbar(Tongue), between the “Transport” and operatingpositions, can be accomplished hydraulically.

Hydraulic Hitch Positioner(Figs. 1 & 2)

The Disc Mower Conditioner is equipped with aHydraulic Hitch Positioner for remotely (from thetractor seat) relocating the Drawbar from the“Transport” to the field operation positions. TheHydraulic Hitch Positioner contains a double-actinghydraulic Cylinder, Hoses and a Transport Lock Valve.

When the Disc Mower Conditioner is in use in the field,the Transport Lock Valve should be in the “open”position. When the Disc Mower Conditioner is in thetransport position, the Transport Lock Valve MUST bein the “locked” position. Keep Transport Lock Valve inthe “locked” position only during unit transport.

1 – Transport Lock Valve in “Open” position

Fig. 1

1

1 – Transport Lock Valve in “Locked” position

Fig. 2

1

GUARDS & SHIELDS (Fig. 3)Whenever and wherever possible and without affectingmachine operation, Guards and Shields have been used,on this equipment, to protect potentially hazardousareas. In many places, Decals are also provided to warnof potential dangers as well as to display specialoperating procedures.

WARNINGRead and observe ALL warnings on the unitBEFORE operating it. DO NOT operate thisequipment unless ALL factory installedguards and shields are properly secured inplace.

Chapter 5 – Controls & Safety Equipment


Implement Drive Line Shields

The Front Telescoping PTO Drive, between the PTOTower and tractor PTO shaft, and the Rear TelescopingPTO Drive, between the PTO Tower and Gearbox, areequipped with rotating Shields.

WARNINGBE SURE that the rotating shields on the tele-scoping drives turn freely BEFORE startingthe tractor engine.

1 – Telescoping Drive Locking Coupler2 – Telescoping PTO Drive Shields3 – Main Cover Assembly4 – Jack Storage Hub5 – Rear Telescoping Drive Rotating Shields6 – Hitchjack in “Supporting” Position7 – Curtains8 – Right Cover Assembly9 – Left Cover Assembly

Fig. 3

12

3

456 7

7

8

9

Miscellaneous Guards

Various latched and hinged Guards, Shields, Curtainsand Covers are provided on both models of Disc MowerConditioners to enable access for lubrication, serviceand adjustment. BE SURE any damaged or worn Guard,Shield, Curtain or Cover is replaced BEFOREattempting to operate the Disc Mower Conditioner.

WARNINGBEFORE working on the Disc MowerConditioner, and BEFORE removing anyguards or opening any covers or shields, BESURE to exercise the MANDATORY SAFETYSHUTDOWN PROCEDURE (page 8). Also, BESURE to replace ALL guards, shields and cov-ers before operating the unit.

HEADER LIFT SYSTEM (Fig. 4)Both Disc Mower Conditioner models use a remotelycontrolled (from the tractor seat) single-actinghydraulic Cylinder “master-slave’’ system, to raise andlower the Header. Before transporting the unit, BESURE to raise the unit as high as possible and activatethe Transport Lock on both sides of the unit.

1 – Left Header Lift Transport Lock (Engaged)

Fig. 4

1

CAUTIONBEFORE transporting the Disc MowerConditioner, raise the unit as high as possibleand engage both transport locks.

Chapter 5 – Controls & Safety Equipment


HITCHJACK (Fig. 3)

A Hitchjack is furnished with the Disc MowerConditioner to support the machine when the tractor isdisconnected as well as to facilitate aligning the Hitchwith the tractor drawbar for hookup. When the Jack isNOT being used to support the Disc MowerConditioner, it can be removed and relocated to a“storage” position on top of the Drawbar.

WARNINGBE SURE the locking pin is properly seatedinto the holes through the jack tube andthe “supporting position” hub on the drawbarBEFORE disconnecting the Disc MowerConditioner from the tractor.

SAFETY CHAIN (Fig. 5)

CAUTIONALWAYS follow state and local regulationsregarding a safety chain (NOT an elastic ornylon/plastic tow strap) and auxiliary lightingwhen towing farm equipment on publichighways! A safety chain should always beused to retain the connection between thetowing and towed machine, in the event ofseparation of the primary attaching system.BE SURE to check with local law enforcementagencies for your own particular regulations.

1 – Locking Hitch Pin2 – Clevis

Fig. 5: Accessory Safety Chain (Installed)

12

As required or when desired, the Disc MowerConditioner should be equipped with a safety chainand auxiliary lighting for transporting the unit on publichighways. A sturdy Chain Loop is welded to the sideof the Drawbar to facilitate anchoring the chain. Referto the Optional Features & Accessories chapter forordering information.

TELESCOPING DRIVE COUPLER(Fig. 3)

The Front Telescoping Drive is equipped with Spring-loaded Locking Devices to positively lock it onto thetractor PTO shaft and the Rear Drive Shaft mounted inthe Drawbar Tower. Depress the Locking Device againstthe Spring tension and slide the Yoke onto the tractorPTO shaft. Release the Locking Device and move theYoke ahead or back until the Lock engages into thegroove of the PTO shaft. The same process is used toinstall the other end of the front Telescoping Drive Lineto the Shaft mounted in the Drawbar Tower. BE SUREthe phasing notch on the PTO is properly oriented withthe Tower Shaft. When towing the Disc Mower Condi-tioner behind a vehicle that does not have a PTO driveshaft to secure the Front Drive Line to, the Drive Linemust be removed from the Disc Mower Conditioner. DONOT move Disc Mower Conditioner with the FrontDrive Line setting on Drive Line Storage Prop.

WARNINGBE SURE that the telescoping PTO coupler isproperly secured to the tractor PTO shaft andunit input shaft BEFORE starting the tractorengine.

TRANSPORT LOCKS (Figs. 1, 2 & 4)

When either model Disc Mower Conditioner is going tobe transported on a public highway, BE SURE to raisethe unit all the way up and engage both Right and LeftHeader Lift System Transport Locks. BE SURE to alsoswing the Drawbar to the Transport position and placethe Transport Lock Valve in “closed” Position.

IMPORTANT: DO NOT operate the PTO whenthe Disc Mower Conditioner’s Drawbar (Tongue) isin the Transport Position. This position puts anexcessive load angle on the Rear Drive Joint. Thisexcessive load angle will cause prematurecomponent wear.


CHAPTER 6OPERATION

CAUTIONBEFORE operating the Disc MowerConditioner for the first time, review andcomply with ALL SAFETY recommendationsset forth in the SAFETY chapter of thismanual.

EMERGENCY SHUTDOWNIn an emergency or in case a foreign object enters theHeader area, STOP cutting material IMMEDIATELY bydisengaging the tractor PTO. Then, exercise the MANDA-TORY SAFETY SHUTDOWN PROCEDURE (page 8)BEFORE leaving the tractor seat to remedy the problem.

START-UP

WARNINGBE SURE ALL factory installed guards andshields are properly secured in placeBEFORE starting the tractor engine. BE SUREthat NO people are within 100 feet (30 m) of theunit when engaging the PTO. Never operatewith curtain in raised position.

To avoid unnecessary strain on the Disc MowerConditioner Drive Line components, ALWAYS engagethe tractor PTO slowly with the tractor engine at less thanhalf throttle. Bring the unit to PTO speed BEFORE startingto cut. Always operate at PTO speed! Attempting tooperate at higher than PTO speed could cause excessivevibration, wear and early component failure. In addition,operating the unit at slower than PTO speed will cause poorwindrow formation and increase the chances of plugging.

STARTING THE FIELD

NOTE: BEFORE mowing, raise and lower theHeader several times to insure that it is operatingproperly.After the field has been checked and is known to be free ofobstructions, it can be opened by cutting the first swath ina counterclockwise direction. However, it is recommendedto make two or three clockwise rounds first to expose anypotential hazards around the edge of the field. Then,proceed to cut and condition the backswaths by operatingin a counter-clockwise direction around the field. The fieldcan then be divided into sections, as desired.

GROUND SPEEDThe Disc Mower Conditioner can be operated in a widerange of ground speeds depending on crop conditionsand/or terrain. Any change in ground speed should bemade by changing tractor gears and NOT by increasing ordecreasing tractor engine RPM.

UNPLUGGINGIt is possible for the Disc Mower Conditioner to plug in twodifferent areas. It can become plugged in the Disc areaslipping the Drive Line Clutch, or the unit can becomeplugged in the Conditioning Rolls causing Bandbelt to slip.

Plugged DiscsTo clear a plugging condition in the area of the Discs:

1. Shut off the PTO.

2. Raise the Header all the way up.

3. Exercise the MANDATORY SAFETY SHUTDOWNPROCEDURE (page 8) and lock the tractor parkingbrake.

4. Engage both Header Transport Locks.

5. Carefully clear the plug from the Cutterbar area.

6. If the plugging occurs frequently, refer to theTroubleshooting chapter for additional directives.

Plugged Conditioning RollsTo clear plugging from the Conditioning Rolls, proceed asfollows:

IMPORTANT: If either the Conditioner Drive Beltor Slip Clutch starts to slip, stop forward travel anddisengage the PTO IMMEDIATELY!

1. Stop forward movement of the tractor and disengagethe PTO.

2. Raise the unit up fully.

3. Exercise the MANDATORY SAFETY SHUTDOWNPROCEDURE (page 8) and lock the tractor parkingbrake.

4. Engage both Header Transport Locks.

5. Open Front Cover on Header and remove excess mate-rial. Turn Cutterbar Disc in a reverse direction to backout the plug from between the Rollers.

6. If the plugging occurs frequently, refer to theTroubleshooting chapter for additional information.

7. Check for proper Clutch and Belt settings and wear.

HILLY CONDITIONSUnder hilly conditions, it is necessary to add a 95%calcium chloride solution to the left tire for additionalstability.

BP0303/AP0999 18 Printed in U.S.A.

CHAPTER 7ADJUSTMENTS

WARNINGBEFORE adjusting this unit, exercise theMANDATORY SAFETY SHUTDOWN PROCE-DURE (page 8).

The DC2345 and DC2365 Disc Mower Conditionershave been designed and factory adjusted to functionproperly under most field operating conditions.However, due to the wide range of operating conditionsencountered, some additional readjustments may berequired.

HEADER FLOTATION (Figs. 6 & 7)

NOTE: BE SURE to place the Header in theoperating position before adjusting the flotation. Inaddition, when operating the Disc Mower Condi-tioner with a high PTO horsepower tractor, theflotation may have to be set heavier on the left sideof the Header to counteract the higher rotationaltorque’s tendency to lift the Header off the ground.

The Header flotation is adjusted by varying the settingof the Flotation Springs on each end of the Header.Lower the Header to the operating position, loosen theJam Nuts and tighten or loosen the Spring Bolts toachieve the desired flotation. For normal conditions, theflotation should be set with enough force to just lift eachend of the Header off the ground. In rocky or roughconditions, the flotation should be set lighter to protectthe Cutterbar. At higher mowing speeds, heaviersettings follow terrain better.

IMPORTANT: Any change of cutting height orDrawbar height will change the Header flotation.BE SURE to readjust the flotation, if necessary, toavoid damage. Also, when making a flotationadjustment to the left side of the Header, BE SUREto adjust both Springs evenly, to avoid damagingthe U-bolt Anchor on the bottom end of the Springs.

1 – Spring Adjustment Bolts2 – Jam Nuts3 – Left Flotation Springs

Fig. 6

1

2

3

1 – Spring Adjustment Bolt2 – Jam Nut3 – Right Flotation Spring

Fig. 7

1

2

3

CUTTING HEIGHT (Fig. 8)The cutting height can be adjusted from 1-1/4″ (32mm)to 3-1/4″ (83mm) using the Disc Angle Adjustment andup to 5-1/4″ (133 mm) with optional Tall Skid Shoes.

NOTE: Any change to the cutting heightrequires that the flotation be checked andreadjusted, as necessary.

Chapter 7 – Adjustments


DISC ANGLE (Fig. 8)The Disc angle is infinitely adjustable from 0° (3-1/4″,83mm cutting height) to 6° down (1-1/4″, 32mm cuttingheight). In rocky or rough conditions, use a flatter or 0°Disc angle to protect the Disc Blades. In down, tangledand lodged crops, use a steeper or 6° Disc angle to obtaina clean cut.

WARNINGExercise the MANDATORY SAFETY SHUT-DOWN PROCEDURE (page 8) BEFORE ad-justing the disc angle.

To change the Disc angle, it is necessary to movethe front pivot of the third Link forward (0°) orbackward (6°). To adjust the Disc angle, turn theT-handle clockwise or counterclockwise to make thedesired change.

IMPORTANT: A Disc angle change will changethe Header flotation. To avoid damage to the Discsor Blades, BE SURE to readjust the Headerflotation after changing the Disc angle.

1 – T-handle

Fig. 8

1

Optional Hydraulic TiltThe Disc angle is infinitely adjustable from 0° (3-1/4″,83mm cutting height) to 6° down (1-1/4″, 32mm cuttingheight). In rocky or rough conditions, use a flatter or 0°Disc angle to protect the Disc Blades. In down, tangledand lodged crops, use a steeper or 6° Disc angle to obtaina clean cut.

To change the Disc angle, it is necessary to movethe rear pivot of the third Link rearward (0°) or forward(6°). To prepare to adjust the Disc angle, raise theunit to the transport height, engage the Transport Locksbut do NOT remove hydraulic pressure from the system.

1 – Cutterbar Lift Cylinder2 – Adjusting Clevis Pin

Fig. 9

1

2

1 – Position 1 for 1-1/4″ Cutting Height2 – Position 12 for 3-1/4″ Cutting Height

Fig. 10: Plate Viewed from Left Side. Each number represents approximately0.2″ (5 mm) of cutting height adjustment

21

To change the Disc angle, place the Clevis Pin inthe desired height location shown in Figure 10. ThePin acts as a downstop when hydraulic pressure isremoved from the unit to change from transport tooperating position. Applying Lift System pressurewill raise the Cutterbar to the highest position beforeraising the conditioner.

IMPORTANT: A Disc angle change will changethe Header flotation. To avoid damage, BE SUREto readjust the Header flotation after changing theDisc angle.



SKID SHOES (Fig. 11)

The Skid Shoes are located on the underside of theCutterbar Frame and are NOT adjustable. (See theOptional Equipment & Accessories chapter for detailson Tall Skid Shoes).

1 – Skid Shoe

Fig. 11

1

CONDITIONER ROLL PRESSURE(Figs. 12 & 13)

The Conditioner Roll pressure determines the amount ofconditioning done to the crop (assuming the Roll gap isproperly adjusted) and should be used accordingly.

For crops like alfalfa and clover (legumes), use onlyenough Roll pressure to crack and kink the stems. If theleaves show dark spots and/or the tops of the plants arebeing clipped off, too much Roll pressure is being used.

In grass-type crops, more Roll pressure is required thanfor legume-type crops.

NOTE: If the Conditioner Rolls are separatedtoo far, there is NO amount of Roll pressure that willdo a satisfactory job, in most crop conditions.

On units after SN7800-2345 & SN9800-2365, adjustthe Conditioner Roll Pressure Spring by adjusting thethreaded Bolt and Lock Nut system. Spring pressure isnormally adjusted from the factory (69″ [1750 mm] forDC2345, 71″ [1800 mm] for DC2365) overall Springlength including hook. Thread Bolt into Spring Plug toincrease Roll pressure. DO NOT overtighten! PreventSpring Plug from rotating as Bolt is tightened. Lubricatethreads to ease adjustment.

On units before SN7801-2345 & SN9801-2365, adjustthe Conditioner Roll Pressure Spring by adjusting thethreaded Turnbuckle and Rod system. Spring pressure

is normally adjusted from the factory at 48″ (1220mm)overall Spring length including hooks. Move Turn-buckle Ends together to increase Roll pressure. DONOT overtighten! Prevent Spring Rods from rotating asTurnbuckle is tightened. Lubricate threads to easeadjustment.

Fig. 12: After SN7800-2345 & SN9800-2365

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1 – 48″ (1220mm) (Overall Spring LengthIncluding Hooks)

2 – Conditioner Roll Pressure Spring3 – Conditioner Roll Pressure Turnbuckle

Fig. 13: Before SN7801-2345 & SN9801-2365

2 3

1

Once Spring pressure is set, change amount of cropconditioning by varying Roll spacing. Greater Rollspacing results in less crop conditioning while less Rollspacing results in greater crop conditioning.

IMPORTANT: Do NOT reduce the Roll pressureto the point where there is NO Spring force on theRolls. Damage can occur to the Roll PressureChain if the Roll pressure is too low, allowing theRolls to open and close freely.



CONDITIONER ROLL GAP (Fig. 14)The Conditioner Roll gap is the distance between the topof the lug on one Roll and the root of the lug of themating Roll. The Roll gap should be set from 1/16 to1/8″ (1.6 to 3.2mm), for most crops. However, it may bedesirable to increase the Roll gap, when cuttingthick-stemmed cane-type crops.

IMPORTANT: Always check the Roll gap atseveral points along the entire length of the Rollsand at every 90° of rotation. The gap must alwaysbe maintained at a minimum of 1/16″ (1.6mm).Operating at closer than this minimum gap or withRolls touching will result in damage to theConditioner Rolls, Bearings and Frame.The Conditioner Roll gap can be changed by adjustingthe Stop Bolt at each end of the Header. First loosen theLocking Jam Nut. Turning the Stop Bolt into the Headerwill open the Rolls increasing the gap. Turning the StopBolt out will close the Rolls decreasing the gap. BESURE to retighten the Locking Jam Nuts after thedesired gap has been set.

NOTE: If the Conditioner Rolls are separatedtoo far, there is NO amount of Roll pressure that willdo a satisfactory job of conditioning, in most crops.

TOP ROLL CHAIN DRIVE TENSION(Fig. 14)The Roll Drive Chain is tensioned by a Spring on theRoll Chain Idler. This Spring tension is NOT adjustable.

NOTE: When the Spring no longer puts tensionon the Idler, replace the Roll Drive Chain.

1 – Stop Bolt2 – Locking Jam Nut3 – Roll Chain Idler Spring

Fig. 14

1

2

3

WINDROW TO SWATHADJUSTMENT (Fig. 15)The Disc Mower Conditioner will make anything froma narrow windrow to a wide swath, by moving theadjustable Deflector up or down. The Deflector can beadjusted using the Deflector Adjustment Hand Crank. Inorder to raise the Deflector for a narrow windrow, turnthe crank clockwise. In order to lower the Deflector fora wide swath, turn the crank counterclockwise. Themaximum swath width achievable is 72″ (1830mm) forthe DC2345 or 86″ (2185mm) for the DC2365. Fine tunewindrow width setting by adjusting Forming ChamberSides. Narrow windrow width is 2-1/2′ (813mm).

1 – Deflector Adjustment Hand Crank(Stored Position)

Fig. 15

1

CONDITIONER ROLL DRIVEBELT TENSIONThe Compression Spring, on the Belt Idler, should be setat a 3-5/8″ (92mm) overall length. (See the Servicechapter, Fig. 21 for details).



Notes


CHAPTER 8LUBRICATION

GENERAL INFORMATION

WARNINGNEVER lubricate the machine when any partof the unit is in motion. ALWAYS BE SURE toexercise the MANDATORY SAFETY SHUT-DOWN PROCEDURE (page 8) BEFORE lubri-cating the machine.

Remember that sufficient oil or grease will preventexcessive wear and premature failure.

IMPORTANT: Whenever service is performedon hydraulic components (valves, cylinders,hoses, etc.) or Transmission, care must be takento prevent discharging fluid onto the ground.Catch and dispose of fluid per local waste disposalregulations.

CUTTERBAR

IMPORTANT: The oil in the Cutterbar MUST bechanged after the first 10 hours of operation.

It is difficult to accurately check the oil in the Cutterbar.If in doubt as to the amount of oil contained in Cutterbar,do NOT add oil. Drain and refill the Cutterbar. The oilshould be changed every 200 hours or at least annually(more often if operated under heavy loads). TheCutterbar MUST be drained completely so that the exactvolume of oil required can be put back into theCutterbar. The following procedure MUST befollowed:

1. Operate the Disc Conditioner for 10 minutes sothat the Cutterbar reaches operating temperature.

2. Raise the Disc Conditioner to the transportposition and engage the Transport Locks.

3. Park the Disc Conditioner so that the left rearcorner of the Cutterbar is the lowest point on theCutterbar.

4. Exercise the MANDATORY SAFETY SHUT-DOWN PROCEDURE (page 8).

5. Remove the Skid Shoe from the left end of theCutterbar. Remove the Overflow Plug from thebottom of the Cutterbar and the Filler Plug locatedon top of the Cutterbar. Allow the oil to drain com-pletely. Wait for the dripping to stop.

6. Reinstall the Overflow Plug and the Skid Shoe.Refill the Cutterbar with SAE 80 GL 4 oil(DC2345, 7 Disc Cutterbar, 4 pt, 1.9 L; DC2365,8 Disc Cutterbar, 4-1/2 pt, 2.13 L).

NOTE: In some areas SAE 80 GL 4 oil maynot be available. A GL 4 or GL 5 grade SAE#80W90EP Gear Lube is an acceptable substitute.

The Cutterbar should be checked daily for oil drips anddust accumulation around the Seals. Oil drips or dustaccumulation indicate that the Seals are leaking. Oilwhich is tan in color and foams excessively indicatesthat it has water present.

NOTE: There will be signs of oil at the OverflowPlug. A small amount of oil in this location shouldbe considered normal.

GEARBOX (Check Daily)The Disc Conditioner must be down (in a cuttingposition) before oil level is checked. A Dipstick isprovided for checking the oil level in the Gearbox. Thecorrect oil level range is between the bottom line and topline on the Dipstick when the Cutterbar angle is less than5° or cutting height 1-3/4 to 3-1/4″ (44 to 83mm). Theoil should be changed every 200 hours of operation orannually (more often if operated under heavy loads).The gearbox holds 4.8 qts (4.5 L) of SAE #80W90EPGear Lube.

The Gearbox should be checked occasionally for oildrips and dust accumulation around the Seals. Oil dripsor dust accumulation indicate that the Seals are leaking.Oil which is tan in color and foams excessively indicatesthat it has water present.

IMPORTANT: The oil in the Gearbox MUST bechanged after the first 10 hours of operation.

Chapter 8 – Lubrication


OILING (Check Daily) (Fig. 16)

The Roller Chains are enclosed and oiled in an Oil Bathon the right side of the Disc Conditioner. The oil shouldbe changed every 100 hours of operation or bi-annually(more often if operated under heavy loads). The OilBath holds 3 qts (2.84 L) of SAE #80W90EP Gear Lube.Check oil level as shown in Figure 16.

The Oil Bath should be checked occasionally for oildrips and dust accumulation around the Seals. Oil dripsor dust accumulation indicate that the Seals are leaking.Oil which is tan in color and foams excessively indicatesthat it has water present. To change the oil, observe thefollowing steps:

1. Remove the Top Right Cover.

2. Remove Lower Right Cover to allow oil to drain.

3. With a rag, wipe out the lower areas of the Frame.

4. Clean and apply silicone sealer to the LowerCover. Clean Cover mating surface of Frame andinstall Lower Cover.

5. Refill Oil Bath with 3 qts (2.84 L) of SAE#80W90EP Gear Lube.

6. Clean and apply silicone sealer to the top area ofLower Cover where Top Cover seats. Clean TopCover and mating surface of Frame and install TopCover.

Apply a good grade of foaming aerosol lubricant, suchas NAPA Chain and Cable Lubricant, to the Front andRear Telescoping PTO Drive Shields.

1 – Roller Chain Oil Bath Fill Level2 – Check Roller Chain Oil Bath Fill Level here by

removing Top Front Screw which holds LowerShield in place.

3 – Roller Chain Oil Bath Fill Plug

Fig. 16

1

2

3

SEALED BEARINGSSealed Bearings are used throughout the machine toprovide trouble-free operation, with a minimum ofmaintenance and lubrication. These Sealed Bearings arelubricated for life and relubrication is NOT required,NOR should it be attempted.

GREASING

NOTE: Grease all fittings on a prescribed basis,at the intervals of operation listed, before and afterstoring the unit and as otherwise listed. Use a goodgrade of lithium base grease.

Wipe dirt from the fittings before greasing to preventany dirt from being forced into the Bearings or pivots.Replace any missing fittings, when noted. To minimizedirt build-up, avoid excessive greasing.

NOTE: In addition to the fittings, inspect andrepack the Wheel Bearings at least once a season.The Telescoping PTO Drives should also beseparated and grease applied to the splines atleast three times during the harvesting season.

Grease Fitting Locations

Grease Every 10 hours (or Daily)

1. Telescoping PTO Drive Crosses (4 Places)

2. Telescoping PTO Drive Tube (2 Places)

3. Overrunning Clutch (1 Place)

4. Inner Left Pusharm (3 Places)

5. Inner Right Pusharm (3 Places)

6. Right and Left Wheel Leg Pivots (2 Places)

7. Nylon Bushings on Non-rotating DrivelineShields (export models, Non-rotating DrivelineShield PTOs ONLY)

Grease Every 200 hours (or Annually)

8. Conditioner Roll Tension Turnbuckle(Before SN7801–2345 & SN9801–2365)

9. Cutterbar Driveline U-Joints andTelescoping PTO Drive (3 Places)

IMPORTANT: Shields must be removed fromthe Cutterbar Driveline U-Joints and PTO Drivebefore greasing. After greasing, be sure shieldsare properly secured in place or cutterbar damagewill result.

Chapter 8 – Lubrication


5

6 6

4

7

2

3

7

1 1

89

Before SN7801-2345 & SN9801-2365


CHAPTER 9SERVICE

GENERAL INFORMATION

WARNINGBEFORE servicing this unit, exercise theMANDATORY SAFETY SHUTDOWN PROCE-DURE (page 8).

NOTE: The following information is alsoreferred to in the Troubleshooting chapter of thismanual. It should be understood that all servicesdetailed in this chapter are Owner-Operatorresponsibilities. Where indicated, certain serviceroutines should only be carried out by (or under thedirection of) an authorized GEHL equipmentdealer.

SEALED BALL BEARINGREPLACEMENT (Fig. 17)

Sealed Ball Bearings are used on various Shafts, aroundthe unit. This type of Bearing is generally retained, inplace, with a Self-locking Eccentric Collar. The LockCollar has a counter bored recess, which is eccentricwith the Collar bore. This eccentric recess engages ormates with an eccentric end of the Bearing inner ring,when the Bearing is assembled on the Shaft. TheBearing is engaged, on the inner ring cam, by the Collar.This assembly grips the Shaft tightly with a positivebinding action that increases with use. The Collar SetScrew provides supplementary locking.

A Bearing can be removed from the Shaft byunscrewing the Set Screw, placing a punch in the driftpin hole in the direction opposite shaft rotation, andtapping on the punch in order to loosen the self-lockingCollar.

Install Bearings with self-locking Collars in thefollowing manner:

1. Place the Bearing and Collar on the Shaft with thecam surfaces next to each other. Tighten the boltson the Bearing Retainers.

2. Mate the cam, of the Lock Collar, with the cam, ofthe Bearing inner ring.

3. Press the Locking Collar against the Bearing wideinner ring and turn it, in the direction of Shaftrotation, until it tightly engages. Tighten theCollar further by tapping on a punch inserted inthe drift pin hole.

NOTE: Overtightening the Collar may resultin damage.

4. Last, tighten the Set Screw in the Locking Collar.

A – BearingB – Set ScrewC – Collar CamD – Wide Inner Cam RingE – Drift Pin HoleF – Eccentric Self Locking Collar

Fig. 17

C

D

EF

A

B

CONDITIONER

Conditioner Roll Gap (Figs. 18 & 20)

The Conditioner Rolls MUST have a minimum of 1/16″(2mm) gap during operation. At NO time, should thelugs of the Conditioner Rolls touch each other, duringoperation, as damage to the Conditioner Rolls, Bearingsand Frame will result.

Chapter 9 – Service


Adjust the Conditioner Roll Gap by unlocking the 3/4″Jam Nut on the back of either End Panel. Hold the JamNut on the inside of the End Panel and adjust the Screwto obtain the proper roll gap. Lock outer Jam Nut onceroll gap is set. BE SURE to properly reseal the Top ofLower Right Cover with silicone sealer after setting rollgap.

A – 1/16″ (2mm) Minimum Clearance (Upper Roll Lugcentered between Lugs of Lower Roll)

Fig. 18

A

Conditioner Roll Timing(Figs. 18, 19 & 20)

The Conditioner Rolls are properly timed when the lugof one Roll is centered in the groove of the mating Roll.BE SURE the Roll Drive Chain is properly tensioned,before adjusting or checking the Roll timing.

The Mower Conditioners are built with either 9 bolt or12 bolt Timing Sprockets. To time the ConditionerRolls, loosen the M8 Socket Head Screws on the TimingSprocket. Go behind the Conditioner Rolls and centerthe lug of one Roll in the groove of the mating Roll.Torque the screws on the Timing Sprocket to half-torque(15 ft-lb, 20 Nm) using the proper cross-point starsequence pattern as shown in Figure 19. Finish torquingbolts to full torque setting (30 ft-lb, 41 Nm) using theproper above described star pattern. Double-check eachbolt to verify the correct torque is maintained. Again,check the timing as the Rolls are rotated by hand.

Fig. 19

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Conditioner RollDrive Chain Tension (Fig. 20)The Conditioner Roll Drive Chain Idler tension iscontrolled by a NON-adjustable Idler Spring.

NOTE: When the Spring no longer puts tensionon the Idler, replace the Roll Drive Chain.

Top Roll Drive Chain Replacement1. Remove the Spring Clip and Side Bar from the

Chain Master Link.

2. With a 2 x 4 x 24″ wood board, pry the SpringLoaded Idler Arm down to relieve tension on theChain.

3. Disassemble Chain by removing Connector Linkfrom slack Chain. Remove Chain from machine.

For Chain installation, follow above steps in reverse.

1 – Loosen Socket Head Screws and RotateLower Roll to adjust Timing (retorque to 30 ft lb,41 Nm)

2 – Non-adjustable Idler Tension Spring3 – 1/16″ (2mm) Minimum Clearance Adjusted Here

Fig. 20

2

1

3



CONDITIONER ROLL DRIVE BELT(Fig. 21)The Belt on the Disc Conditioner is used to drive theConditioner Rolls. It is also the overload protection forthe Conditioner Rolls.

Belt Tension (Fig. 21)The Compression Spring, on the Belt Idler, should be setat a 3-5/8″ (92mm) overall length. The Spring-loadedIdler has been designed to protect the Conditioner RollDriveline; overtightening the Idler will decrease thisprotection.

1 – Conditioner Roll Drive Belt2 – Belt Idler3 – Adjustment Rod Compression Spring4 – 3-5/8″ (92mm)

Fig. 21

1

2

3

4

Belt Replacement (Fig. 21)To remove the Belt, use the following steps:

1. Remove the Gearbox Belt Drive Sheave byfollowing details under the Belt Drive SheaveReplacement section in this chapter.

2. Remove the Belt.

To install a new Belt:

3. Reverse the previous steps to install a new Belt.

4. Place the Belt Idler against the Belt and re-tensionthe Belt Idler Spring following details under theBelt Tension topic in this chapter. BE SURE to re-tension the new Belt after 1/2 hour of operation.

Belt Sheave AlignmentThe Belt Sheaves are aligned at the factory and shouldNOT need adjustment. If the lower Conditioner Roll orGearbox are ever replaced, Sheave alignment andConditioner Roll Timing MUST be checked. If Sheaves

are not properly aligned, contact your Gehl dealer forproper instructions.

Belt Drive Sheave Replacement(Fig. 21)The Drive Sheave, on the Output Shaft of the Gearbox,can be removed in the following manner:

1. Release the tension on the Belt Idler Spring.

2. Loosen and remove the Cap Screw, Lock Washerand Washer.

3. Using a pulley puller, remove the Sheave from theGearbox Output Shaft.

To replace the Pulley or install a new one, proceedas follows:

4. BE SURE the tapered surfaces of the GearboxOutput Shaft and inside of Pulley hub are clean.

5. Place the Key in the Gearbox Output Shaft.

6. With Key on Shaft, put Belt on Pulley and slidePulley into position on the Shaft.

Secure the Belt Drive Sheave to the Gearbox OutputShaft with the Cap Screw, Lock Washer and Washer.Torque to 80 ft lb (108 Nm).

CUTTERBARAll service to the internal parts of the Cutterbar MUSTbe carried out by (or under the direction of) anauthorized GEHL equipment dealer.

The disc bearing housing assemblies are serviceable ascomplete units. Should this be required, contact yourGehl dealer.

DISCS, KNIVES AND HARDWAREDiscs, Knives, Bolts and Nuts are fabricated from highquality steel and undergo a special heat treatmentprocess to ensure a tough wear resistance and hence alonger life. To avoid creating hazardous out-of-balanceforces, ALWAYS replace missing, damaged or wornKnives and Hardware in pairs!

IMPORTANT: Worn or damaged items MUST bereplaced immediately with genuine GEHL ServiceParts, otherwise all warranty is rendered null andvoid.

Knife Hardware (Fig. 22)If any of the following conditions exist, the Kniferetaining hardware MUST be replaced. See Fig. 22 fordetails.

1. When a visible deformation is found.



2. When the locking compound on the Bolt threadshas worn away or if the locking compound hasbecome inoperative due to contamination bywater, oil or dirt.

3. When wear on the Bolt Head reaches the contactarea of the Knife.

4. When a wear groove deeper than 1/8″ (3mm) hasformed on the bearing shoulder of the Knife Bolt.

5. When the Contact Washer of the Knife RetainingNut has lost its elasticity or the Washer becomesloose from the Nut.

6. When wear on the Nut reaches a depth equal tohalf the height of the Nut.

7. When the retaining hardware has been removed5 times.

1 – Acceptable Bolt with Locking Compound Intact2 – Unacceptable Bolt with Wear Groove3 – Unacceptable Bolt with Edge Wear4 – Acceptable Nut with Contact Washer5 – Unacceptable Nut with Contact Washer Crushed6 – Unacceptable Nut with Edge Wear

Fig. 22

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Removal & Replacement of Knives(Fig. 23)Knives should be inspected systematically each timebefore the Disc Mower Conditioner is operated. Failureto replace Knives as required will result in an increasein the risk of accidents, a deterioration in the qualityof cut and a risk of damage to the Cutterbar. Both Kniveson each Disc MUST be replaced in pairs to maintainbalance if any of the following conditions exist(Fig. 23):

1. If any sign of cracking is found.

2. The width of a Knife, measured at a distance of3/8″ (10mm) away from the edge of the Disc,MUST be greater than 3/4 of the original width ofthe Knife. (Fig. 23)

3. The hole in Knife for retaining Bolt MUST NOTbecome worn oval by more than 1/16″ (2mm).

A – 3/8″ (10mm)B – MUST Be Greater Than 3/4 of Width of Knife HereC – Maximum Out-of-round 1/16″ (2mm)

Fig. 23

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When replacing Knives on the Disc MowerConditioner, the following steps MUST be followed:

1. Clean around each self-locking Nut to beremoved.

2. Place a block of wood between the Discs so theDiscs will NOT rotate when removing the Bolts.

3. Remove self-locking Nuts with an 18mm socket.Position Disc to allow Knife Bolt to drop throughaccess hole in front center of Skid Shoe.

4. Clean the hole before installing new Knife.

5. Fit new Knives or turn Knives to use secondcutting edge. BE SURE that each Knife ispositioned with the small arrow pointing in thedirection of rotation of the Disc that the Knife isto be fitted to.

6. BE SURE the Bolt is in good condition BEFOREreusing.

7. Torque Locknuts to 90 ft lbs (122 Nm).



Fig. 24

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1 – Bolt 2 – Conical Spring Washer (Crown Up)

WARNINGUse ONLY genuine GEHL service parts.

NOTE: To ensure proper Knife retention, the re-taining hardware MUST be replaced after havingbeen removed 5 times.

WARNINGALWAYS replace damaged knives. NEVERattempt to straighten a bent knife.

Disc Bearing Housing Removal andReplacement (Fig. 25)The Gear, Shaft, Bearing, Housing and Hub that drivethe Discs is a complete assembly. When replacing thisassembly, be sure to time the Hub 90° from its adjacentHubs and to torque Locknuts to 90 ft lbs (122 Nm) ina cross–corner pattern.

1 – Complete Disc Bearing Housing Assembly2 – Self–locking Nut, Torque 90 ft lb (122 Nm)3 – O–Ring Seals4 – Rear Bracket5 – Front Bracket

Fig. 25

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Disc Removal & Replacement(Fig. 24 & 26)

1. Place a block of wood between the Discs so theDiscs will NOT rotate when removing the Bolts.

2. Remove the Bolts and Conical Spring Washers.

To remove the cone-shaped outer Right Disc, removethe top cover and remove the Bolts and Conical SpringWashers using a socket and extension.

3. Remove the Disc. If the Disc is tight, pry up withtwo levers at opposite sides of the Disc.

4. Replace the Disc MAKING SURE that it isrotated 90° from the next Disc and that each Knifeis positioned with the small arrow pointing in thedirection of rotation of the Disc. Refer to theService Parts Manual for the proper positioning ofDiscs. Secure with the Bolts and Conical SpringWashers MAKING SURE the Conical SpringWashers are positioned with the crown up. Torqueto 90 ft lbs (122 Nm).

IMPORTANT: Disc Assemblies must beshimmed so that there is a minimum clearance of.040″ (1 mm) between the bottom of the Disc Knifeand the top of the small Cutterbar Boss that theKnife passes over. See Figure 26 for details.

NOTE: Additional Disc life may be gained bymoving a sound worn Disc to a location with oppo-site rotation. BE SURE to change the Knives to theopposite rotation.

1 – Disc Assembly2 – Disc Shim3 – 0.040″ (1 mm) Clearance

Fig. 26

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IMPORTANT: BE SURE to replace the Cover onthe cone-shaped outer Discs or dirt will build upinside the cone and cause an out-of-balancecondition and potential Cutterbar damage.

NOTE: If a Disc shows signs of wear after aconsiderable amount of acreage has been cut,it is advisable to replace it. When the Left Discneeds replacement, contact your dealer’s servicedepartment for assistance.

HYDRAULIC TONGUE CYLINDER

WARNINGDo NOT remove hydraulic tongue control cyl-inder with conditioner header off the ground.Failure to heed can result in death or seriousinjury.

HYDRAULIC LIFT CYLINDERS(Fig. 27)

IMPORTANT: Whenever service is performedon hydraulic components (valves, cylinders,hoses, etc.) or Transmission, care must be takento prevent discharging fluid onto the ground.Catch and dispose of fluid per local waste disposalregulations.

The Disc Mower Conditioner Lift System consists of a“master-slave” cylinder arrangement, as shown. With a“master-slave” setup, the hydraulic oil, from the rod endof the master cylinder, goes into the base end of the slavecylinder. Because of this arrangement, both cylinderswill extend equally, under any load.

With a “master-slave” arrangement, the cylinders canbecome un-phased such that the machine will raiseunevenly (left end higher or lower than the right end).Use the following steps to re-phase the lift cylinders:

1. Completely raise and lower the unit several times,keeping the tractor hydraulic lever engaged, untilNO cylinder movement is observed.

NOTE: The cylinders will move very slowly,while equalizing.

2. If the unit is still unequal, proceed to step 3 or 4,depending on the problem.



WARNINGBE SURE there is NO pressure in the lines,when loosening the fittings. Hydraulic fluidunder pressure can penetrate the skin. Ifinjured by escaping fluid, see a doctor atonce. Injected fluid MUST BE surgicallyremoved by a doctor familiar with this type ofinjury or gangrene may result.

3. If the slave cylinder (right) will NOT raise fully,when the master cylinder (left) is fully raised,loosen the fitting into the slave cylinder (bleedpoint as shown). With the fitting loose, raise theunit, until oil appears at the fitting. Then,re-tighten the fitting and repeat step 1.

4. If the master cylinder (left) will NOT raise fully,when the slave cylinder (right) is fully raised,loosen the fitting that goes into the slave cylinder(bleed point as shown). With the fitting loose,remove approximately 1/2 cup (4 oz)(120 ml) ofoil for every one inch (25 mm) of cylinder lengthdifference. Then, re-tighten the fitting and repeatstep 1.

1 – Left Side2 – Master Cylinder3 – To Tractor4 – Bleed Point5 – Slave Cylinder6 – Right Side

Fig. 27

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If the hydraulic cylinders become un-phased frequently,during use, it will be necessary to replace the piston seals

in the master cylinder. Only replace the slave gland sealsif it is leaking externally.

NOTE: A leaking tractor valve may cause one orboth hydraulic cylinders to raise slowly whilecutting.

TELESCOPING DRIVES

NOTE: For safety reasons, service on theTelescoping PTO Drives should ONLY beperformed by (or under the direction of) anauthorized GEHL equipment dealer.

Over time, the Telescoping Drive Universal Joints maybecome worn and noisy and require service. Asnecessary, remove the Drive(s) from the DiscConditioner and take them to your dealer.

TIRES & WHEELS

The Tires should be inflated to different pressures.Inflate the right side to 36 PSI (252 kPa) and the left sideto 18 PSI (126 kPa). The Wheel lug nuts should betorqued to 90 ft-lb (124 Nm). The Wheel Bearingsshould be torqued to 8 ft-lb (11 Nm), while oscillatingthe Wheel 90°. Then, back off and retorque to 4 ft-lb (5Nm). The slotted nuts should be backed off 1 cotter pinslot.

NOTE: Under hilly conditions, it is necessary toadd a 95% calcium chloride solution to the left tirefor additional stability.

Check the Conditioner tire pressures after every 50hours of operation. Tires should be inflated to 36 PSI(252 kPa) on the right side and to 18 PSI (126 kPa) onthe left side. Wheel Lug torque should be checked afterevery 50 hours of operation and tightened to 90 ft lb (124Nm) torque.

WARNINGOur Company does NOT sell replacementtires. Tire mounting, repair and replacementsshould ONLY be attempted by a qualified tiremanufacturer’s representative, or by properlytrained personnel following the tiremanufacturer’s instructions. If you do nothave such instructions, contact your tiredealer or our Company.



WARNINGInflating or servicing tires can be dangerous.Whenever possible, trained personnel shouldbe called to service and mount tires. To avoidpossible death or serious injury, follow thesafety precautions below:

• BE SURE the rim is clean and free of rust.

• Lubricate both the tire beads and rimflanges with a soap solution. DO NOT useoil or grease.

• Use a clip-on tire chuck with a remotehose and gauge which allows you to standclear of the tire while inflating it.

• DO NOT place your fingers on the tirebead or rim during inflation.

• NEVER inflate beyond 35 PSI (240 kPa)to seat the beads. If the beads have NOTseated by the time the pressure reaches35 PSI, deflate the assembly, repositionthe tire on the rim, relubricate both partsand re-inflate it. Inflation pressure beyond35 PSI with unseated beads may breakthe bead or rim with explosive forcesufficient to cause death or serious injury.

• After seating the beads, adjust theinflation pressure to the recommendedoperating pressure listed.

• DO NOT weld, braze, or otherwise attemptto repair or use a damaged rim.


CHAPTER 10PREPARING FOR FIELD OPERATION

TRACTOR & DRAWBARREQUIREMENTS (Fig. 28)The tractor, to be used to operate a Disc Conditioner,MUST have:

1. A minimum of 65 hp (48 kW) for the DC2345 and75 hp (56 kW) for the DC2365.

2. A 540 RPM or 1000 RPM PTO, whichevermatches the operating speed of the DiscConditioner.

3. PTO and hitch dimensions as shown in Fig. 28.

4. Two remote hydraulic outputs capable ofpowering a double-acting cylinder. A minimum

operating pressure of 1800 PSIG (124 bar) isrequired to lift the Disc Conditioner.

5. It is recommended that the towing tractor beequipped with an enclosed operator’s cab withsafety glass or polycarbonate windows, or withprotective mesh screens.

Adjust the tractor drawbar to meet Dimension 2 inFigure 28 to avoid damage to the front Telescoping PTODrive. Adjust the drawbar left or right to place the hitchpin hole directly in line with the PTO Shaft.

IMPORTANT: To prevent damage to the DiscConditioner Telescoping Drive, implement Inputand Tractor PTO Shaft, avoid making sharp turns.

Fig. 28

1 – Tractor PTO Shaft (Tractor MUST comply withASAE Standard S203).

2 – 15-1/2″ (394mm) for 540 RPM operation17″ (432mm) for 1000 RPM operation.

This is measured from the retaining groove inthe Tractor PTO Shaft to the center of theTractor Hitch Pin Hole.


This is measured from the retaining groove inthe Tractor PTO Shaft to the center of the HitchExtension Pin.


This is measured from the retaining groove inthe Implement Input Drive Shaft to the centerof the Implement Hitch Hole.

5 – Measure distance from the center of the TractorPTO Shaft to level ground.

6 – Measure distance from the center of ImplementInput Drive Shaft to level ground. (Disc Mowermust be attached to Tractor and be lowered tomowing position). Dimension 6 must be 0-1″(0–25 mm) less than Dimension 5.

7 – Implement Input Drive Shaft.

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Chapter 10 – Preparing For Field Operation


IMPORTANT: If this unit is connected to a tractorequipped with a clevis style drawbar, the clevisparts shown in dashed lines MUST be removed toprevent damage to the unit Driveline. See Fig. 29for details.

1 – Clevis Hitch Parts to be Removed

Fig. 29

1

ATTACHMENT TO TRACTOR(Figs. 31 & 32)

IMPORTANT: Whenever the Conditioner isoperated on a tractor other than the original tractorthe Conditioner was set up for, the Drawbar Heightand Header Flotation must be checked andadjusted accordingly.

Quick Attach Drawbar Extension

The Quick Attach Hitch Extension can be adjusted to fittractor drawbars 1-1/8 to 1-3/4″ (29 to 44 mm) thickand 2 to 3-7/16″ (51 to 88 mm) wide. Spacers of 1-1/4″,1-3/8″, 1-1/2″ and 1-5/8″ are also provided to reduce thehitch pin hole. The Hitch Extension MUST be adjustedto fit the tractor drawbar before use and MUST bereadjusted when connecting to a tractor with a differentsize drawbar. Unless otherwise directed, refer to Fig. 30for the following steps:

1. Set the tractor drawbar to specifications shown inFig. 28.

2. Select the largest Spacer that fits inside the tractordrawbar hitch pin hole.

NOTE: The Spacer is stored on the DrawbarExtension Hitch Pin when the Drawbar Extensionis removed from the tractor.

3. Unlock and pull out the Hitch Pin.

4. Remove and retain the 1/2″ Cap Screw and LockWasher.

5. Adjust the 3/4″ Cap Screws to clear the tractordrawbar.

6. With the Hitch Extension placed loosely on thetractor drawbar, determine the maximum amountof Shims that can be placed in the Hitch Box.Remove the Hitch Extension from the tractordrawbar. Align the Shims with the Hitch Pin andsecure with the retained 1/2″ Cap Screw and LockWasher.

7. Install the Quick Attach Hitch ExtensionAssembly by placing the Spacer inside the tractordrawbar hitch pin hole, sliding the Assembly onthe tractor drawbar. Secure by inserting the HitchPin through the Hitch Box, the Spacer and tractordrawbar, and lock with the Hitch Pin Lockprovided.

8. Adjust all 3/4″ Cap Screws against the tractordrawbar to center the Hitch Box on the drawbarwithin 1/16″ (1.6 mm). Tighten the 3/4″ Jam Nutson one side. Loosen the two Cap Screws on theopposite side just enough (less than 1/12 turn) toallow the Hitch to slide on the tractor drawbar,then tighten the two Jam Nuts.

9. Store extra Shims, Spacers and Instruction Cardin the plastic Box provided. Proceed to theConditioner Tongue Hitch Plate installation topic.

CONDITIONER TONGUEHITCH PLATE

IMPORTANT: If the tractor is equipped with a3-point hitch, raise the lower arms to theirmaximum height (or remove them) to avoidinterference with the Telescoping Drive and PTOTower on the Disc Conditioner.

The Drawbar Extension and Hitch Plate MUST beattached to the tractor drawbar and end of the DiscConditioner Drawbar (Tongue) in such a manner as tomake the front Telescoping Drive Shaft as level aspossible, when Header is resting on the ground. BESURE to follow the measurement information as shownin Figure 28.

1. Raise Disc Conditioner tongue to clear the HitchPin and back tractor to align Hitch Pin with holein Hitch Ball on Tongue. Lower Tongue to rest onHitch Pin. Install Hitch Pin Lock in Hitch Pin tosecure.

After the connection is made, remove the Hitchjack andsecure it to the “Storage Hub” on the top of the Tongue.



Fig. 30

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IMPORTANT: If the available mounting positionsdo NOT permit the Driveline to be level, positionthe Drive to be slightly inclined to the tractor PTOshaft. Do NOT position the Driveline to run slightlydown to the tractor PTO shaft.

PTO

Clean and lightly grease the splines on the tractor PTOshaft and the Yoke of the Telescoping Drive. Depress theSafety Lock Ring and slide the Yoke onto the tractorPTO shaft. Move the Yoke back and forth until theSafety Lock Ring pops forward and locks into thegroove in the PTO shaft.

WARNINGBE SURE that the PTO safety lock ring ispositively engaged and that the tongue issecurely connected to the tractor drawbarhitch extension with a locking clip pin,BEFORE starting the tractor engine. Also, BESURE that the tractor PTO shield is in placeand properly secured and that the telescopingdrive shields are rotating freely BEFOREstarting the tractor engine.



Fig. 31: Possible Positions of HitchExtensions on Tractor Drawbar &

Hitch Plate on Tongue

1 – Extension Hitch2 – Safety Chain & Clevis3 – Locking Hitch Pin4 – Welded-on Ring

Fig. 32: Accessory Chain (Installed)

1

2 3

4

HYDRAULIC LIFT (Fig. 33)

Install the appropriate quick-disconnect fitting (tomatch your tractor connection) onto the Lift CylinderHose using Loctite or equivalent pipe sealingcompound. Make the Lift Cylinder Hose attachment tothe tractor, start the tractor and operate the valve to raiseand lower the Disc Conditioner several times to purgethe air out of the system.

NOTE: If the Disc Conditioner is NOT horizontal,when it is being raised and lowered, refer to theService chapter for corrective measures.

HYDRAULIC TONGUE CONTROL(Fig. 33)

NOTE: The tractor MUST have a remotehydraulic output capable of handling adouble-acting cylinder.

The Hydraulic Swing Tongue Positioner uses a 3″ boreHydraulic Cylinder (provided) to control the Tonguemovement. The Hydraulic Tongue Positioner enablesmoving the Tongue to any position, from transport tofull cutting width, while remaining on the tractor seat.This is extremely useful for steering the unit aroundobstacles, for finishing narrow strips without runningdown windrows and, for cutting square corners.

1 – Tongue Control Cylinder

Fig. 33

1



WARNINGDo NOT remove hydraulic tongue controlcylinder with conditioner header off theground. Failure to heed can result in death orserious injury.

NOTE: Operation of the Tongue ControlCylinder requires a tractor with two remotehydraulic outputs; one for the Tongue Control andanother for the Lift Control.

CUTTING HEIGHT &HEADER FLOTATION

Adjust the Cutting Height and Header Flotationfollowing information in the Adjustments chapter ofthis Manual.

SAFETY CHAIN (Fig. 32)

Only a Safety Chain (NOT an elastic or nylon/plastictow strap) should be used to retain the connectionbetween the towing and towed machines, in the event ofseparation of the primary attaching system. Refer toOptional Features & Accessories chapter for partnumber information.

BREAK-INBefore starting to cut and condition, it is recommendedthat the Disc Conditioner be broken-in by running itempty for approximately 20 minutes. This initial run-inshould be done with the Header on the ground and theTongue in the cutting position. Before running the unithowever, perform the daily (10 hour) maintenanceroutines listed in the beginning of the Operation chapter.

The Break-in should consist of a five minute and afifteen minute running period. First, run the unit for fiveminutes with the tractor engine close to idle RPM. Next,stop the unit and exercise the MANDATORY SAFETYSHUTDOWN PROCEDURE (page 8). Reinspect theunit. After inspection is complete, connect the PTO,start the tractor, engage the PTO near engine idle speedand gradually increase the speed to proper operatingRPM and continue running the machine for 15 minutes.Stop the unit and exercise the MANDATORY SAFETYSHUTDOWN PROCEDURE (page 8) again. Afteranother inspection, the Disc Conditioner is ready for thefield.

IMPORTANT: The oil in the Cutterbar and theGearbox MUST be changed after the first 10 hoursof operation. For details, see the Lubricationchapter of this Manual.

TRANSPORTINGBEFORE transporting the Disc Conditioner, refer to theTransporting chapter of this manual for additionaltransporting information.


CHAPTER 11TRANSPORTING

TRANSPORT LOCKS(Figs. 34, 35 & 36)

When either Disc Mower Conditioner model is going tobe transported on a public highway, BE SURE to raisethe unit all the way up and activate both Lift systemTransport Locks. Also, BE SURE to swing the Drawbarto the Transport position with the Hydraulic HitchPositioner and position the Transport Lock Valve on theCylinder in the Transport (“locked”) position.

1 – Red Reflector2 – Left Header Lift Cylinder Lock “Engaged”3 – SMV Emblem Mounting Bracket

(SMV Emblem removed)

Fig. 34

1

2

3

1 – Hydraulic Hitch Positioner TransportLock Valve (“locked”)

Fig. 35

1

1 – Transport Lock Valve in “Open” position

Fig. 36

1

SAFETY CHAIN & AUXILIARYLIGHTING (Fig. 37)

CAUTIONALWAYS follow state and local regulations,regarding a safety chain (NOT an elastic ornylon/plastic tow strap) and auxiliary lighting,when towing farm equipment on publichighways! A safety chain should always beused to retain the connection between thetowing and towed machine in the event ofseparation of the primary attaching system.BE SURE to check with local law enforcementagencies for your own particular regulations.NEVER transport the Disc Mower Conditionerat speeds greater than 20 mph (32 km/h).

As required or when desired, the Disc MowerConditioner can be equipped with a safety chain foroperation on public highways. A sturdy chain loop iswelded to the side of the drawbar to facilitate anchoringthe chain. The safety chain, when attached in thismanner, has the following characteristics:

Chapter 11 – Transporting


1. Chain is sufficiently slack to allow turns andmovements of either the tractor or the farmimplement, without placing tension on the Chain.

2. Chain is of sufficient strength to hold thedecoupled implement (and its load) and tow it tothe shoulder.

A GEHL Safety Chain, stock number 142965, isavailable through your GEHL Dealer.

Fig. 37: Accessory Safety Chain (Installed)

SMV EMBLEM & REFLECTORS(Figs. 34 & 38)Disc Mower Conditioner models before SN7801-2345& SN9801-2365, are provided with a Slow MovingVehicle Emblem Mounting Bracket on the upper leftback end of the Conditioner Frame. A Slow MovingVehicle Emblem, if required by local laws andregulations, is supplied by the customer. Red ReflectorStrips are also provided at the rear corners of theConditioner Frame.

Disc Mower Conditioner models after SN7800-2345 &SN9800-2365, are provided with a Slow MovingVehicle Emblem Mounting Bracket, Slow MovingVehicle Emblem and Mounting Blade near the centerof the front surface of the Trailer Frame. Red, Amberand Orange Reflector Strips are also provided.

1 – Red Reflectors (2 Places)2 – Amber Reflectors (2 Places)

Fig. 38: SMV Emblem & Reflectors (After SN7800-2345 & SN9800-2365)

3 – Orange Reflectors (2 Places)4 – SMV Emblem & Bracket (Standard Equipment)

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CHAPTER 12STORAGE

After the harvesting season is over, store the DiscConditioner in a dry place where it is not exposed toweather or livestock.

BEFORE STORING

Perform the following preparations on the Disc Condi-tioner, before placing the unit into off-season storage:

1. Release tension from the Drive Belt.

2. Wash off the entire machine. Take special care toremove gum and accumulated dirt from theCutterbar.

3. Remove trash and debris which may be wrappedaround Shafts and/or lodged against Bearings.

4. Repaint any areas where the paint has been wornoff or brush motor oil on these areas.

5. Lubricate the entire machine following theinformation in the Lubrication chapter of thismanual. MAKE SURE to change the Chain Drive,Gearbox and Cutterbar oil. Apply motor oil toadjusting bolt threads.

6. Apply grease to any exposed Cylinder Rods.

7. Take note of any damaged or missing parts orattaching hardware; order and replace themduring the off-season.

8. Check all hydraulic components, hoses andfittings for damage or leaks; make repairs orcorrections, as required.

AFTER STORING

After taking the Disc Conditioner out of storage andbefore the start of the harvesting season, carefully checkthe unit over and make the following inspections andpreparations:

1. Replace all Guards, Shields and Covers. Reviewand re-familiarize yourself with all safetyprecautions outlined in the Safety chapter of thismanual.

2. Remove any trash or debris which may haveaccumulated on the unit during storage.

3. Check and re-inflate the Tires and re-torque theWheel lugs.

4. Realign and re-tension the Drive Belt using theprocedures outlined in the Service chapter.

5. Readjust the Flotation Springs tension.

6. Inspect Cutterbar Knives.

7. Lubricate the entire machine following theinformation in the Lubrication chapter of thismanual.

8. Check Drive Chain tension following theinformation in the Service chapter of this manual.

9. Perform the Clutch run in procedure as outlined inthe Steps below in accordance with the type ofDriveline (540 RPM or 1000 RPM) your unit isequipped with.

540 and 1000 R.P.M. Clutch Run In(After SN DC2345-8300 &DC2365-10400)Perform the Clutch run in procedure as outlined in theSteps below.

1. Remove the Clutch Shield.

2. Loosen (but do NOT remove) the six Clutch Bolts(see Fig. ).

3. Place a block of wood between 2 Cutterbar Discsto prevent rotation.

4. Rotate the Driveline by hand until the Clutch slips.

5. Tighten the six Clutch Bolts.

6. Install the removed Clutch Shield.

1 – Clutch Bolt (3 of 6)

Fig. 39

111

Chapter 9 – Storage


540 R.P.M. Clutch Run In (Before SNDC2345-8301 & DC2365-10401)

Tools required: 1/4″ hex allen wrench, scale or vernierdial caliper.

1. MAKE SURE the tractor is shut off and the PTOis disengaged.

2. Disconnect the Driveline from the tractor.

3. Use the vernier to measure the lengths of theSprings through all three of the 3/8″ access holes.Include the thickness of the Plate in themeasurements. Record these dimensions so thatthe Clutch can be reset to these same settings.

IMPORTANT: Be as accurate as possible! Anerror as small as 1/64″ (0.4 mm) from the originaldimension to the new dimension can cause adifference of up to 15% in torque.

4. Locate the six cap screws on the Clutch. Reducethe load on the screws evenly to avoid damage tothe Clutch. Loosen the six screws 1/2 turn perscrew at a time until all screws are just loose.

5. Attach the implement to the tractor and thedriveline to the tractor PTO.

6. Start the tractor. Engage the PTO and run for a fewminutes or until the Clutch visibly smokes, atwhich time, disengage the tractor PTO.


8. Tighten the six cap screws 1/2 turn per screw at atime until the desired measurement recorded inStep 3 is reached in all three of the 3/8″ accessholes.

IMPORTANT: Be as accurate as possible! Anerror as small as 1/64″ (0.4 mm) from the originaldimension to the new dimension can cause adifference of up to 15% in torque. Overtighteningcould cause the Clutch to fail to slip.

9. Grease the fitting on the Yoke which lubricates theOverrunning Clutch mechanism. Use Shell SuperDuty or an equivalent lithium grease.

10. The Clutch is now ready for use.

1000 R.P.M. Clutch run in (BeforeSN DC2345-8301 & DC2365-10401)

Tools required: 9/16″ box wrench or socket, scale orvernier dial caliper.

1. MAKE SURE the tractor is shut off and the PTOis disengaged.


3. Use the scale or vernier to measure the lengths ofall of the Springs. Record these dimensions so thatthe Clutch can be reset to these same settings.

IMPORTANT: Be as accurate as possible! Anerror as small as 1/64″ (0.4 mm) from the originaldimension to the new dimension can cause adifference of up to 15% in torque.

4. Locate the six bolts on the Clutch. Reduce the loadon the bolts evenly to avoid damage to the Clutch.Loosen the six nuts 1–2 turns per bolt at a timeuntil all nuts are just loose, then tighten all nutsone turn.

5. Attach the implement to the tractor and thedriveline to the tractor PTO.

6. Start the tractor. Engage the PTO and run for a fewminutes or until the Clutch visibly smokes, atwhich time, disengage the tractor PTO.


8. Tighten the six nuts 1/2 turn per nut at a time untilthe desired measurement recorded in Step 3 isreached.

IMPORTANT: Be as accurate as possible! Anerror as small as 1/64″ (0.4 mm) from the originaldimension to the new dimension can cause adifference of up to 15% in torque. Overtighteningcould cause the Clutch to fail to slip.

9. Grease the fitting on the Yoke which lubricates theOverrunning Clutch mechanism. Use Shell SuperDuty or an equivalent lithium grease.

10. The Clutch is now ready for use.

After the above steps have been performed, hook up theunit to the tractor and connect the Front TelescopingDrive. Then, follow the Break-in procedure as outlinedin the Preparing For Field Operation chapter of thisManual. Then, exercise the MANDATORY SAFETYSHUTDOWN PROCEDURE (page 8) and make thefollowing inspections:

a. Check for overheated Bearings

b. Check for loose Bearing Collars or Flanges

c. Check for excessively worn Bearings

d. Check for loose Sprockets, Chains orattaching hardware

e. Check for missing Keys


CHAPTER 13TROUBLESHOOTING

NOTE: This Troubleshooting guide presents problems, causes and suggested remedies beyond theextent of loose, worn or missing parts and it was developed with the understanding that the machine is inotherwise good operating condition. Refer to the index at the back of this manual for Chapter and Topicpage references. BE SURE to exercise the MANDATORY SAFETY SHUTDOWN PROCEDURE (page 8),BEFORE making any adjustments or repairs.

MISCELLANEOUS PROBLEMS

PROBLEM CAUSE REMEDY

Ragged Stubble, unevenmowing or Mower leavingstreaks.

Knives dull or bent. Replace Knives.

Use second cutting edge ifKnives are NOT cracked or bent.

PTO speed too low or too high. Operate PTO closer to rated540 or 1000 RPM.

Ground travel speed too low. Increase ground travel speed.

Ground travel speed too high. Reduce ground travel speed.

Slip Clutch frequently slipping. Clutch worn. Check with yourGEHL dealer’s service depart-ment.

Machine flotation too light forhigh ground speed.

Increase weight on Skids byadjusting Flotation Springs orby reducing ground speed.

Cutterbar angle incorrect. Adjust Cutterbar angle.

Header flotation set incorrectly. Set Header flotation.

Area below and behind Discshas dirt or crop build-up.

Clean Discs & Cutterbar.

Excessive vibration. Incorrect attachment to the tractor.

Detach and correctly reattach themachine to the tractor. BE SUREthe Drive Line between the tractorand Drawbar Tower is level and inphase. See Preparing For FieldOperations chapter of this Manu-al.

Conditioner Rollers are touchingeach other.

STOP operation immediatelyand re-time Rollers and adjustclearance between Rollers.

Operating machine in transportposition.

Stop machine or place unit in fieldoperating position.

Improperly formed windrows orIrregular windrows being formedand a banging noise in themachine.

Deflectors are closed too much inheavy crops.

Open Deflectors.

Chapter 13 – Troubleshooting


MISCELLANEOUS PROBLEMS (Cont.)

PROBLEM CAUSE REMEDY

Improperly formed windrows orIrregular windrows being formedand a banging noise in themachine. (Cont.)

Power Belt slipping and causinguneven Roller speeds.

Adjust Belt tension.

Ground speed too slow. Increase ground speed.

Ground speed erratic. Mow at a constant ground speed.

Excessive Conditioner Roll gap. Check Roll gap.

Crop accumulation in front of theRollers. Roll pressure too high.

Set Roll tension to proper settingas described in the Servicechapter in this manual.

Top Rollers out of time. Check Roll timing andChain tension.

Mower unstable in raised cuttingposition.

Driving speed too high. Avoid sharp turns. Do NOTexceed 20 MPH (32km/h) whentowing

Operating in hilly conditionswithout left tire filled with fluid.

Fill left tire with 95% solution ofcalcium chloride.

Conditioner Rolls plugging. Belt too loose. Check Belt tension.

Foreign objects between Rolls. Unplug the Roll followingprocedure listed in “Unplugging”.

PTO RPM not at rated speed. Maintain 540 RPM or 1000 RPMPTO speed.

Slow crop drying. Excessive Conditioner Roll gap. Check Roll gap.

Low Conditioner Roll pressure. Check Roll pressure.

Insufficient air circulation throughwindrow.

Tractor tire running downwindrow. Consider making awider windrow or swath.

Leaves damaged or stripped off ofstems.

Excessive Conditioner RollPressure.

Reduce Roll Pressure.

Slip Clutch slipping frequently. Slip Clutch worn. Check with your GEHL dealer’sservice department.

Excessive play in Quick AttachHitch assembly

Insufficient amount of Shims and/or 3/4″ side play Bolts incorrectlyadjusted

Add Correct amount of Shimsand/or adjust Bolts referring toPreparation for Field Operationchapter

Drawbar Spacer is too small ornot installed

Install largest Spacer that fits inDrawbar hole


CHAPTER 14SET-UP & ASSEMBLY

HANDLING CRATED UNITThe DC2345 and DC2365 Disc Conditioners areshipped from the factory in two separate shippingbundles consisting of the Main Frame package and theCompleting Parts box. The Main Frame is packaged atthe factory in such a way that the front of the Header isnext to the ground and the Windrow-forming Chamberis pointed upwards. Discardable shipping crate issecured to the front of the Header for additional stabilityduring warehousing.

Depending on facilities, the unit can either be handledwith a forklift truck (capable of carrying at least 4000 lb{1820 kg}) or, with a 2 ton overhead hoist, using liftingpoints on each Spring Tower or on each Axle. In eithercase, handle the machine carefully, so as NOT todamage it. If a forklift is going to be used, BE SURE tospread the forks as far apart as possible and insert themunder the shipping frame as far to the machine’s left sideas possible. Be aware that the balance of the crated unitis such that it is left–side–heavy.

WARNINGBEFORE lifting the unit with a forklift,securely attach chains from the shippingmounts on both ends of the unit, to theforklift, to prevent the unit from swingingaway when the unit is picked up. Also,BE SURE that nobody is close to theunit while unit is being transported inthe shipping position.

UNCRATING UNIT (Fig. 40)After the machine is placed on a solid level surface in itsuncrating location, use the following steps and thedrawing provided to properly uncrate it:

1. Remove all items that are banded to the unit.

2. Remove the Front Tongue section and retainmounting hardware. Discard Mounting Bracket.

3. Securely attach a long heavy chain to the WheelAxles. Then, securely attach the chain, with aspreader bar, to the forklift carriage or hoist. BESURE to leave the Shipping Wires from the Axlesto the Spring Towers installed while letting theunit down from the shipping position.

IMPORTANT: The chain(s) being used MUSTbe equipped with safety lock clevises to assure thatthe chain does NOT disconnect as the Conditioneris being lowered. A spreader bar, capable of liftingat least 4000 lb (1820 kg) and that is at least aswide as the distance between the Disc Conditionerlegs, MUST be used. The spreader bar usedMUST have a reach of 95″ (242 cm) for theDC2345 and 110″ (280 cm) for the DC2365. Thebar will keep the chain apart and prevent the chainfrom crushing the sides of the Windrow FormingChamber. In addition, BE SURE that the chain islong enough so that the Forming Chamber willclear the spreader bar as unit is being pivoteddown.

WARNINGDo NOT allow anyone near the unit, whileit is being lowered. Also, BE SURE thatthe chains are long enough and strongenough to do the job.

4. Keeping tension on the chain at all times, raise theforklift carriage to a point approximately 2 feet(0.6 m) higher than the end of the Windrow Form-ing Chamber. Then, as shown in the drawing pro-vided (Figure 40), slowly pull and lift on theMower Conditioner to rotate it around and rest iton the floor.

NOTE: When rotating the unit down from theshipping position, the hydraulic Lift Cylinders mayextend slightly.

Chapter 14 – Set-up & Assembly


1 – Forming Chamber2 – Axle (Attach Chain Here)3 – Legs

Fig. 40

4 – Pull5 – Pull & Lift6 – Lift

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ASSEMBLY (Figs. 41 & 47)

Proceed to set up the Disc Conditioner using thefollowing steps:

NOTE: Block both Tires, front and back, toprevent the unit from moving.

1. Install the front Tongue using seven each 3/4 x2-1/2″ Cap Screws (grade 5) and 3/4″ Lock Nuts.Torque to 260 lb-ft (353 N⋅m) starting with thebolts at the bottom of the tongue. The hardware isin the completing parts box.

2. Install 125347 90° Female Elbow to rod end portin Positioner Cylinder. See Figure 41 for details.

3. Install 068938 90° Male Elbow to anchor end portin Positioner Cylinder. See Figure 41 for details.

4. Install 125348 Hydraulic Ball Valve to 90°Female Elbow in rod end port of PositionerCylinder. BE SURE to position Valve such that theValve Lever is pointing up in a vertical directionwhen the Valve is closed and the Lever is

positioned on the Drawbar side of the Valve Body.(See Figure 41 for details.)

5. Install and lock Hitchjack onto the Drawbar Hub.Raise the Drawbar with the Jack until the shippingcrate is off the ground. Slide blocks under theshipping crate and let the Header rest on blocks.

6. Remove and discard the two shipping linksthat connect the Header to the Trailer Frame.See Figure 42. Remove the top Roller ChainCover on the right side of the Conditioner. Thereis a protective paper film between the Cover Sealand the Header Frame. Remove the paper film. BESURE to install a 1/2 x 1″ Carriage Bolt and LockNut to the Header where the Shipping Straps wereremoved. To prevent oil leakage, BE SURE to ap-ply silicone sealer to the hole in Frame on the backof the Chain Case BEFORE installing the Car-riage Bolt. Reinstall the Cover. Apply siliconesealer to the top area of the Lower Cover to insurea positive seal between Covers and Frame.

7. Check that the Wheel lugs are torqued to 90 ft-lb(124 Nm).



1 – Drawbar2 – Positioner Cylinder3 – Female Elbow Fitting4 – Positioner Cylinder Hoses5 – Lift Cylinder Hose6 – Hose Clamps

Fig. 41

7 – Cylinder Pins8 – Roll Pins9 – Transport Lock Valve

10 – Tie Straps11 – Male Elbow Fitting12 – Pivot Pin

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NOTE: BEFORE routing the Hoses, BE SUREthat the factory installed edging is properly in place.Also BE SURE to position the Tongue so that thePositioner Cylinder is fully extended before instal-ling Hoses.

8. Remove front Plug from Junction Block andinstall Header Lift Hose. See Figure 42 for details.

9. Route the Header Lift Hose along the Tongue andout of Tower. Use a Tie Strap near Female Elbowto secure Hose to bottom of Swing Cylinder. SeeFigure 41 for details.

10. Route the Swing Cylinder Hoses along the Tonguesecuring all Hoses to the Tongue with the Clampsprovided. Attach Hoses to the Swing CylinderElbow and Valve. Use a Tie Strap around all 3Hoses near Drawbar. See Figure 41 for details.

11. Attach the Tower Cover to the Tower on theTongue securing with 4 carriage bolts, Washers,

Lock Washers and Nuts. BE SURE the heads ofthe bolts face out.

12. Install the 2 Hose Clamps to the Tower CoverSecuring with 5/16 x 1-1/2 Carriage Bolts andLock Nuts. See Figure 41 for details.

1 – Header Lift Hose Connected to Junction Block2 – Header Shipping Link (one each side)

Fig. 42

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13. Install the PTO Support Rod and Hinge Plate se-curing with the existing Hitch Plate hardware. SeeFigure 43.

1 – PTO Support Rod2 – Hinge Plate

Fig. 43

WARNINGBEFORE the hydraulics system isenergized or charged, BE SURE that theshipping straps have been removed asinstructed in Step 6. Failure to heed canresult in death or serious injury.

WARNINGWhen raising the header, the tongue willbe free to change positions until thecylinder is filled with oil. BE SURE theimmediate area is clear of personnel andobstructions. Failure to heed can result indeath or serious injury.

14. Connect the Header Lift Hose to the tractor andraise the Header. Refer to the Operator’s ManualService chapter for proper procedures forbleeding the Lift Cylinders. Engage the HeaderLift Transport Lock on each Trailing Leg.

15. With the Positioner Cylinder Valve in the “open”position, connect the Drawbar Positioner Hoses tothe tractor and cycle the Drawbar Cylinder severaltimes to fill the Cylinder and Hoses completelywith hydraulic fluid. Place the Drawbar in theoperating position (Cylinder extended). Engagethe Drawbar Lock by placing the PositionerCylinder Valve in the “closed” position. SeeFigure 41 for details. Securely block the unit.Disconnect the tractor from the Disc Conditioner.

16. Remove the Shipping Crate from the Header.Discard Shipping Crate mounting bolts and retainWashers, Lock Washers and Nuts.

IMPORTANT: To prevent damage to the DiscConditioner, the use of a forklift or overhead craneis recommended to assist in the removal of theShipping Crate.

17. Remove the Shipping Hardware for the MowerTilt Adjustment and discard. (Fig. 44)

18. Install (2) Skid Shoes where the Shipping Mountswere installed. Install (4) 1/2 x 1-1/4 CarriageBolts, Washers, Lock Washers and Nuts to the rearof the Skid Shoes. Position Carriage Bolt heads tothe bottom of the Shoes in all locations. Install (4)M12 Lock Washers and Nuts to the forward end ofthe Skid Shoe. Be sure the Skid Shoes are seatedfirmly against the front of the Cutterbar beforetightening hardware.

1 – Remove Cap Screw and discard (1 each side)

Fig. 44

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19. Remove the wires that are retaining the Curtainson the unit in the rolled-up position. BE SURE tore-tighten the hardware that holds the Curtains inplace.



20. Remove the Main Cover and install Panel Clip asshown in Fig. 45. Also, apply a silicone sealer.

1 – Panel Clip

Fig. 45

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21. Add 3 quarts (2.84 L) of SAE 80W90EP GearLube to the Chain Case through the Filler Plug,located on the back of the Chain Case.

22. Remove the cylindrical Clutch Shield from thefront of the Gearbox on the Header Assembly byremoving and retaining the 3 Flanged HeadScrews from outside of the Clutch Shield. BESURE to leave the Inner Mounting Plate securedto the nose of the Gearbox.

23. Slide the cylindrical Clutch Shield over the Clutchend of the Tower to Transmission DrivelineAssembly.

24. Clean and lightly grease the Spline on the Trans-mission Shaft. Apply Loctite 271 or equivalent tothe Cap Screw in the end of the Clutch Assembly.Install the Tower to Transmission Driveline andOverrunning Clutch Assembly Driveline ClutchEnd to Transmission with Cap Screw torqued to65 ft lb (88 Nm). Reinstall the cylindrical ClutchShield securing with the 3 retained Flanged HeadScrews.

25. Clean and lightly grease the Splines on the TowerShaft. Install the other end of the Tower to

Transmission Driveline and Overrunning Clutchassembly to the Tower Shaft. Secure with 2 CapScrews, Lock Washers and Nuts. Torque Screwsto 80 ft lb (108 Nm). BE SURE to properly alignthe phasing notch as the Driveline is installed. SeeFigure 47 for details.

26. Position the top Tower Shield with flap on topagainst the rear of the Tower Assembly and alignthe holes in the Shield with the Support Bracket.Loosely secure the Tower Shield to the Tower As-sembly with the two Screws and Lock Washerssupplied. Position Bottom Shield against TowerAssembly and align the holes in the Shield withthe Support Bracket. Loosely secure the TowerShield to the Tower Assembly with the twoScrews and Lock Washers supplied. Secure Topand Bottom Tower Shields with two Screws, LockWashers and Nuts. Tighten all hardware. SeeFigure 46 for details.

27. In a similar manner, secure the remaining TowerShields to the front of the Tower Assembly withhardware supplied.

1 – Front & Rear Tower Shields (Flap Up)2 – Mounting Hardware (two on top, two underneath,

two on sides)

Fig. 46

2

11

22



1 – Phasing Notch2 – Phasing Key

Fig. 47

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28. Install the tractor to Tower Driveline bydepressing the Safety Lock Ring on Rear DriveYoke and slide the Yoke onto the Tower Shaft.BE SURE to properly align the phasing notchas the Driveline is installed. See Figure 47 fordetails. Move the Yoke back and forth until theSafety Lock Ring pops forward and locks intothe groove in the Tower Shaft. Support tractorend of Driveline on PTO Support Rod. TheDriveline is also stored in this position. The

Driveline will be attached to the tractor in thePreparing for Field Operation chapter of thismanual.

IMPORTANT: When transporting unit withoutPTO Driveline attached to tractor PTO shaft, thetractor to Tower Driveline should be removed andcarried separately from the Disc Conditioner.

29. Refer to the topics, Tractor and DrawbarRequirements and Attachment To Tractor, in thePreparing for Field Operation chapter of theOperator’s Manual, for additional details onconnecting the Disc Conditioner to the tractor.This additional information will be required toproperly complete the installation of theremaining Hitch and Drawbar parts with regardsto 540 RPM and 1000 RPM tractor PTOs.

TALL SKID SHOES (Figs. 48 & 49)These may be installed by removing the Standard SkidShoes and installing the Tall Skid Shoes using the samemounting hardware. These shoes are installed under the2nd, 4th & 6th discs on the DC2345 and under the 2nd,4th, 6th and 8th discs on the DC2365. The Standardshoes may be reinstalled at a later time as fieldconditions permit. When installing the Tall Skid Shoes,adjustment of Header flotation is required. (See theAdjustments chapter).

Fig. 48: DC2345 Tall Skid Shoe Locations

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HYDRAULIC HEADER TILT(Figs. 50 – 52)(After SN7800-2345 & SN9800-2365)The Hydraulic Header Tilt Kit will fit ONLY on unitsafter SN7800-2345 & SN9800-2365. The HydraulicHeader Tilt Kit installs as follows:

PREPARATION1. Park the Disc Mower Conditioner on a flat and

firm level surface.

2. Place the Disc Mower Conditioner in the operat-ing position and completely disconnect the DiscMower Conditioner from the tractor.

3. Securely block the Disc Mower Conditionerwheels to prevent movement.

4. Adjust the Cutterbar to the highest cutting posi-tion turning the Height Rod until it is tight.

5. Raise the Hitchjack as far as it will go.

6. Securely block the Header Assembly up at the leftand right front corners.

7. Loosen the Height Adjustment Rod until the rearTop Link is free. Lower the Hitchjack if necessary.

8. Remove and retain rear Top Link Pin.

9. Remove and retain Lock Plates and hardware.

INSTALLATION10. Install Grease Fitting into Adjustment Link Weld-

ment.

11. Install Adjustment Link Assembly between Ad-justment Plates securing with Top Link Pin re-tained in Step 8.

12. Install the Cylinder Assembly to the unit routingthe actuator end of the cylinder into AdjustmentLink securing with Spring Pin.

13. Install one end of the Hydraulic Hose and the Re-lief Fitting to the Head Tilt Cylinder.

14. Install Plate on bosses on left side of Adjustmentplate securing with two 5/16″ x 1″ Cap Screws and5/16″ Lock Washers. Be sure to route Hose andCylinder Inlet over top of Plate.

15. Install Clevis Pin securing with Hairpin Cotter.

16. Install Split Grommet in hole in left side of theForming Chamber Support Plate.

17. Remove and retain O–Ring Plug from JunctionBlock.

18. Install loose end of Hydraulic Hose to empty posi-tion on Junction Block.

19. Secure loose length of Hydraulic hose two withClamps (used on existing bolts on the underside ofForming Chamber) and Wire Tie (used to tie TiltHose to Lift Cylinder Hose).

20. Tighten the Cutting Height Adjustment Rod allthe way. Lock the Adjustment Link in place secur-ing with the hardware retained in Step 9.

21. This completes installation of the kit. See the Ad-justment chapter to properly adjust Header TiltPosition.

1 – Junction Block2 – Lift Hose3 – Wire Tie (Behind Cylinder)4 – Grommet5 – Hose Clamps Mounted to these Bolts

(Inside Forming Chamber)

Fig. 50

3

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1 – Rear Top Link Pin

Fig. 51: Kit Preparation2 – Lock Plates (2) and Hardware

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1 – Spring Pin2 – Relief Fitting3 – Wire Tie4 – Split Grommet5 – Double Hose Clamp6 – Adjustment Link Weldment7 – Head Tilt Hydraulic Cylinder8 – Plate

Fig. 52

9 – Hose Assembly10 – Grease Fitting11 – Cap Screw 5/16″ x 1″12 – Lock Washer 5/16″13 – Clevis Pin14 – Hair Pin Cotter15 – Lock Plate Hardware (2 each)

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CHAPTER 15OPTIONAL EQUIPMENT & ACCESSORIES

SAFETY CHAINA 5 ton Safety Chain is available. Order the SafetyChain 142965.

TRANSPORT LIGHTSA Transport Light Kit is available. Order the Light Kitby stock number 142969. Refer to separate instructions,packaged with the kit of parts, for mounting details.

TALL SKID SHOESTall Skid Shoes are available. Order three Tall Skid

Shoes 120664 for the DC2345. Order four Tall SkidShoes 120664 for the DC2365. These shoes areinstalled under the 2nd, 4th & 6th discs on the DC2345and under the 2nd, 4th, 6th and 8th discs on the DC2365.

HYDRAULIC HEADER TILT KITA Hydraulic Header Tilt Kit is available for units afterSN7800-2345 & SN9800-2365. Order 153448.


CHAPTER 16DECAL LOCATIONS

GENERAL INFORMATION

Decal locations information is provided to assist in theproper selection and application of new decals, in theevent the original decals become damaged or themachine is repainted. Refer to the listing for theillustration reference number, part number, descriptionand quantity of each decal provided in the kit. Refer tothe appropriate illustration(s) for replacement loca-tion(s).

NOTE: Refer to the SAFETY chapter of theOperator’s Manual for the specific informationprovided on all of the various safety decals fur-nished in the decal kit(s).

To insure proper selection for correct replacementdecal(s), compare all of the various close-up locationillustratuons to your machine BEFORE starting torefinish the unit. Then circle each decal applicable toyour machine while checking off its part number in thelisting. After you have verified all the decals needed forreplacement, set aside unneeded decals for disposal.

NEW DECAL APPLICATION

Surfaces MUST be free from dirt, dust, grease and otherforeign material before applying the new decal. Toapply a solid-formed decal, remove the smaller portionof the decal backing paper and apply this part of theexposed adhesive backing to the clean surface whilemaintaining proper position and alignment. Slowly peeloff the other portion of the backing paper while applyinghand pressure to smooth out the decal surface.

CAUTIONALWAYS observe safety rules shown on de-cals. If decals become damaged or if the unitis repainted, replace the decals. If repainting,BE SURE that ALL decals from the kit(s) whichapply to your machine are affixed.

PAINT NOTICEUse this list to order paint for refinishing:906315 One Gal. AG Red906324 One Qt. Light Grey906316 6 (12 oz. Spray Cans) AG Red906325 6 (12 oz. Spray Cans) Light Grey

The decal set number for the DC2345 and DC2365 is141952. The set includes the following:Ref. PartNo. No. Description & Quantity1. 060138 Oil Level2. 060510 Jack Storage Position3. 060511 Jack Lifting Position4. 145216 Red Reflector Strip (2 Places)5. 145217 Amber Reflector Strip

(2 Places After SN7800-2345 & SN9800-2365)

6. 091444 DANGER – Rotating Drive Line (2 Places)7. 093366 Store Manual Here8. 093367 WARNING – Owner’s Responsibility

& Read Manual9. 093373 WARNING – General Safety

10. 093465 WARNING – 1000 RPM Operation ONLY 093466 WARNING – 540 RPM Operation ONLY11. 093653 WARNING – Rotating Drive Line12. 094912 Colorbar 12″13. 094913 GEHL 3-1/4″ (3 Places)14. 094951 Made In USA15. 115974 WARNING – Block (2 Places)16. 120790 Hitch Adjustment17. 125476 DANGER – Rotating Knives (2 Places)18. 126456 GE19. 126457 HL20. 141933 2345

141934 236521. 141935 2345 & BAR

141936 2365 & BAR23. 145218 Orange Reflector Strip (2 Places)

(After SN7800-2345 & SN9800-2365)24. 145235 SMV Emblem (Includes Hardware)

(After SN7800-2345 & SN9800-2365)25. 145237 Mounting Spade

(After SN7800-2345 & SN9800-2365)26. 143007* DANGER – Shield Missing (under Shield)

* NOT Included in Decal Kit

NOTE: Order part number 126757 for 10 ft rollof replacement striping

Chapter 16 – Decal Locations


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DECAL LOCATIONS(CONTINUED)

The decal set number for the DC2345 and DC2365 is141952. The set includes the following:

Ref. PartNo. No. Description & Quantity1. 060138 Oil Level2. 060510 Jack Storage Position3. 060511 Jack Lifting Position4. 145216 Red Reflector Strip (2 Places)5. 145217 Amber Reflector Strip




10. 093465 WARNING – 1000 RPM Operation ONLY 093466 WARNING – 540 RPM Operation ONLY11. 093653 WARNING – Rotating Drive Line12. 094912 Colorbar 12″13. 094913 GEHL 3-1/4″ (3 Places)

14. 094951 Made In USA15. 115974 WARNING – Block (2 Places)16. 120790 Hitch Adjustment17. 125476 DANGER – Rotating Knives (2 Places)18. 126456 GE19. 126457 HL20. 141933 2345

141934 236521. 141935 2345 & BAR









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DECAL LOCATIONS(CONTINUED)

The decal set number for the DC2345 and DC2365 is141952. The set includes the following:

Ref. PartNo. No. Description & Quantity1. 060138 Oil Level2. 060510 Jack Storage Position3. 060511 Jack Lifting Position4. 145216 Red Reflector Strip (2 Places)5. 145217 Amber Reflector Strip




10. 093465 WARNING – 1000 RPM Operation ONLY 093466 WARNING – 540 RPM Operation ONLY11. 093653 WARNING – Rotating Drive Line12. 094912 Colorbar 12″13. 094913 GEHL 3-1/4″ (3 Places)

14. 094951 Made In USA15. 115974 WARNING – Block (2 Places)16. 120790 Hitch Adjustment17. 125476 DANGER – Rotating Knives (2 Places)18. 126456 GE19. 126457 HL20. 141933 2345

141934 236521. 141935 2345 & BAR










CHAPTER 17MAINTENANCE LOG

NOTE: Under extreme operating conditions more frequent service than the recommended intervals maybe required. You must decide if your actual operation requires more frequent service based on your use.

SERVICE EVERY 10 HOURS

COMPONENT and SERVICE REQUIRED PROCEDURE and/or CHAPTER TOPICREFERENCE (Check Page No. in Index)

Lubricate appropriate grease fittings. Refer to Lubrication chapter.

Check Roller Chain Oil Bath Level Refer to Lubrication chapter.

Lubricate Roller Chains, and PTO Drive Guard Refer to Lubrication chapter.

Date After Service is Completed

SERVICE EVERY 100 HOURS (BI-ANNUALLY)

Check Tire pressures and retorque Wheel Lugs. Refer to Service chapter.

Lubricate appropriate grease fittings. Refer to Lubrication chapter.

Change Roller Chain Oil Bath Oil Level Refer to Lubrication chapter.


Chapter 17 – Maintenance Log


SERVICE EVERY 200 HOURS (ANNUALLY)

COMPONENT and SERVICE REQUIRED PROCEDURE and/or CHAPTER TOPICREFERENCE (Check Page No. in Index)

Repack Wheel Bearings. Refer to Lubrication chapter.

Lubricate Conditioner Roll Tension Turnbuckle. Refer to Lubrication chapter.

Lubricate Cutterbar & Gearbox. Refer to Lubrication chapter.

Lubricate Cutterbar Driveline U-Joints Refer to Lubrication chapter.



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TORQUE SPECIFICATIONSNOTE: Use these torque values when tightening GEHL hardware (excluding: Locknuts and Self-tapping, Thread Forming and Sheet Metal Screws) unless specified otherwise.

All torque values are in Lb-Ft except those marked with an * which are Lb-In(For metric torque value Nm, multiply Lb-Ft value by 1.355 or Lb-In value by 0.113)

Unified Grade 2 Grade 5 Grade 8National Thread Dry Lubed Dry Lubed Dry Lubed

8-32 19* 14* 30* 22* 41* 31*8-328-36

1920*

1415*

3031*

2223*

4143*

31 32*

10-24 27* 21* 43* 32* 60* 45*10-2410-32

2731*

2123*

4349*

3236*

6068*

45 51*

1/4-20 66* 50* 9 75* 12 91/4-201/4-28

6676*

5056*

910

7586*

1214

9 10

5/16-18 11 9 17 13 25 185/16-185/16-24

1112 9 17

191314 25 18

20

3/8-16 20 15 30 23 45 353/8-163/8-24

2023

1517

3035

2325

4550 35

7/16-14 32 24 50 35 70 557/16-147/16-20

3236

2427

5055

3540

7080

55 60

1/2-13 50 35 75 55 110 801/2-131/2-20

5055

3540

7590

5565

110120

80 90

9/16-12 70 55 110 80 150 1109/16-129/16-18

7080

5560

110120

8090

150170

110 130

5/8-11 100 75 150 110 220 1705/8-115/8-18

100110

7585

150180

110130

220240

170 180

3/4-10 175 130 260 200 380 2803/4-103/4-16

175200

130150

260300

200220

380420

280 320

7/8-9 170 125 430 320 600 4607/8-97/8-14

170180

125140

430470

320360

600660

460 500

1-8 250 190 640 480 900 6801-81-14

250270

190210

640710

480530

9001000

680 740

Metric Grade 8.8 8.8 Grade 10.9 10.9 Grade 12.9 12.9

Course Thread Dry Lubed Dry Lubed Dry Lubed

M6-1 8 6 11 8 13.5 10

M8-1.25 19 14 27 20 32.5 24

M10-1.5 37.5 28 53 39 64 47

M12-1.75 65 48 91.5 67.5 111.5 82

M14-2 103.5 76.5 145.5 108 176.5 131

M16-2 158.5 117.5 223.5 165.5 271 200

908047/BP0303 2003 GEHL Company, All Rights reserved. Printed in U.S.A.

WARNINGThis Operator’s Manual isprovided for operator use.

DO NOT REMOVEFROM THIS MACHINE.

DO NOT start, operate or work on this machineuntil you have carefully read and thoroughlyunderstand the contents of this manual.

Failure to follow safety, operating andmaintenance instructions could result inserious injury to the operator or bystanders,poor operation, and costly breakdowns.

If you have any questions on proper operation,adjustment or maintenance of this machine,contact your dealer or the Gehl CompanyService Department before starting orcontinuing operation.

Gehl Company 143 Water Street, P.O. Box 179, West Bend, WI 53095-0179 U.S.A.(www.gehl.com)

Date post:	28-Jun-2020
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