For technical questions or replacement parts, please call 1-800-444-3353.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 2
SAVE THIS MANUALKeep this manual for the safety warn-
ings and precautions, assembly, operat-ing, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference.
IMPORTANT SAFETY INSTRUCTIONS
In this manual, on the labeling, and all other information provided with this product:
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER indicates a hazardous
situation which, if not avoided, will result in death or serious injury.
WARNING indicates a
hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION, used with the safety
alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE is used to address practices
not related to personal injury.
CAUTION, without the safety alert
symbol, is used to address practices not related to personal injury.
When using Mowers, basic
safety precautions should always be followed to reduce the risk of fire and personal injury, including the following:
READ ALL INSTRUCTIONS
Personal Safety1. Dress Properly - Do not wear loose
clothing or jewelry. They can be caught in moving parts. Use of steel toed footwear is recommended when working outdoors. Wear protective hair covering to contain long hair.
2. Wear ANSI-approved safety goggles and heavy-duty work gloves. Use NIOSH
approved face or dust mask if opera-tion is dusty.
3. Use ear protection during operation; sound levels over 85 dB can cause permanent hearing damage.
4. Do not Overreach - Keep proper foot-ing and balance at all times.
5. Stay Alert - Watch what you are doing. Use common sense. Do not operate Mower when you are tired.
6. Do not grasp the cutting blades.
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7. Keep hands and feet away from cutting area.
8. Keep hands away from blades.
9. Wear thick jeans and steel-toed work boots to help prevent injury caused by flying debris.
Mower Use and Care1. Avoid Dangerous Environment
- Do not use in damp or wet loca-tions.
2. Do not Use In Rain.
3. Keep Children Away - All visitors should be kept at a distance of at least 20 yards from work area.
4. When servicing use only identical replacement parts.
5. Use Right Mower - Do not use the Mower for any job except that for which it is intended.
6. Do not Force the Mower - It will do the job better and with less likelihood of injury at the rate for which it was designed. Do not exceed 3 MPH dur-ing use.
7. Raise Mower, secure it in the upright position, and do not exceed 20 MPH during transport. Do not transport mower on public roads.
8. Store Idle Mowers Indoors - When not in use, Mowers should be stored indoors in a dry, locked-up place - out of reach of children.
9. Maintain Mower With Care - Keep cutting edge sharp and clean for best performance and to reduce the risk of injury. Follow instructions for lubricat-ing and changing accessories. Keep surfaces dry, clean, and free from oil and grease.
10. Before use of the Mower. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other condition that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by a qualified technician.
11. Disconnect the Mower from the tractor when not in use, before ser-vicing, and when changing blades.
12. Keep guards in place and in work-ing order.
13. Keep blades sharp.
14. Do not use this Mower for edging operations. Debris may be force-fully thrown out resulting in seri-ous injury.
General Safety1. Keep this manual in the storage tube
that is connected to the mower, so that it will not get lost.
2. Read and follow all instructions in the tractor manual that the Mower will be connected to.
3. Use a tractor equipped with a R.O.P.S. (Roll-Over Protective Struc-ture) and wear the seatbelt.
4. Do not allow riders on tractor or mower.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 4
5. Clear area of stones and debris be-fore mowing.
6. Use on level lawns only. Do not use Mower for other than intended use.
7. Do not install on a tractor over 40 HP. Do not exceed tractor PTO of 540 RPM at the drive shaft.
8. Do not stand between the tractor and the mower when it is running. The P.T.O. shaft spins rapidly and can grab loose clothing or equipment causing serious personal injury. Do not operate this product if the P.T.O. shield is damaged.
9. CARBON MONOXIDE HAZARD Using an engine indoors CAN KILL YOU IN MINUTES.
Tractor exhaust contains carbon monoxide. This is a poison you cannot see or smell.
NEVER use inside a barn or garage, EVEN IF doors and windows are open.
Only use OUTSIDE and far away from windows, doors, and vents.
10. Professional applications must meet OSHA standards.
11. Do not operate Mower without all guards and shields in place.
12. Maintain labels and nameplates on the Mower. These carry important safety information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
13. The warnings, precautions, and in-structions discussed in this instruction manual cannot cover all possible con-ditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 5
SPECIFICATIONS
Tractor RequirementsTractors with Minimum 20 HP but under 40 HP
Recommended Operating Speed 1.5 to 3 MPH
P.T.O. Shaft Type 1-3/8” Diameter 6-spline Shaft
P.T.O. Speed Maximum 540 RPMDriveline Size ASAE Category 3Product Drive Ratio 1:2.83
Blade20-5/8” Long blade sharpened to a 1/32” Thick edge
Hitch Type Category I, 3 Point Hitch
Gearbox Lubrication SAE 90 EP OilBelt Requirements 1/2” wide V-belts
UNPACKINGWhen unpacking, check to make sure
that the item is intact and undamaged. If any parts are missing or broken, please call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible.
SET UP INSTRUCTIONSRead the ENTIRE IMPORTANT SAFETY INSTRUCTIONS section at the beginning of this manual including all text under subheadings therein before set up or use of this product.
Note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual.
Assembly1. Attach the rear braces (52) to the
lugs on the rear of the deck with an M12 Bolt (43) and Lock Nut (33), as shown below.
2. Attach the Front Brace (53) to the lugs on the front of the mower deck with M12 Bolts (43) and Lock Nuts (33), as shown below.
3. Connect the Front Braces at the top with an M12 Bolt (31), Spacer (37), Upper Hitch (55), and Lock Nuts (33); as shown below.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 6
4. Install the Wheel Supports (36) with M12 Bolts (43) and Lock Nuts (59).
5.
M12 Bolts (43)
Install Deflector (48) using M12 Bolts (43) and Lock Nuts (59).
6. Adjust the height of the mower by adding spacers (37) to the bottom of the wheel Assemblies (34) before inserting into axle arm.
37
36
34
37
35
7. Add SAE 90 EP oil to the gearbox of the Mower before first use. See directions under the “Maintenance and Servicing” section for directions.
Attaching the Mower to the Tractor
TO PREVENT SERIOUS INJURY
OR DEATH. Back the tractor up to the mower so that the lower draft arms are in alignment with the mower lift pins. Stop the engine, lock the brakes, place the tractor in park, and remove the key from the ignition.
1. Read the tractor manufacturer’s di-rections for P.T.O. connections to the tractor.
2. Shorten or remove the tractor draw-bar so it will not interfere with the up and down movement of the mower.
3. Connect the tractor and stabilizer bars to the lower lift pins. Adjust the
SKU 98777 For technical questions, please call 1-800-444-3353. Page 7
top link so it will connect to the top holes in the A-Frame or into the holes in the floating top link.
4. Slide yoke onto the tractor P.T.O. shaft.
5. Move yoke back and forth until lock-ing pin has engaged on the P.T.O. shaft groove. When attaching the driveline yoke to the tractor P.T.O. shaft; the spring activated locking pin must seat properly in the tractor P.T.O. shaft groove.
6.
The Mower when properly connected to a 20 HP tractor
Use stabilizer bars or sway blocks appropriate to the tractor to prevent side sway of the mower.
7. Secure the P.T.O. guard with the chains.
OPERATING INSTRUCTIONSRead the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.
1. The gearbox of the Mower must be filled with a SAE 90 EP oil before first use of the Mower.
2. Before operating the Mower, put on ANSI-approved safety goggles and other safety gear. Safety goggles and other safety gear are sold sepa-rately.
3. Attach the Mower to the tractor.
4. Raise the Mower and brace it up securely. Add or remove Spacers to adjust the for the height of grass desired (as directed in the SET-UP section of this manual). Always brace the Mower when it is raised; hydraulic systems can fail causing the mower to fall onto the operator.
5. Start the tractor and allow it to warm up and achieve idle speed.
6. To transport the Mower, disengage the P.T.O. and raise it to full transport height before moving to the mowing area.
7. Lower the Mower. Reduce engine speed and engage the tractor P.T.O. Gradually increase the engine speed to develop P.T.O. speed of 540 RPM.
8. Enter the area to be cut with the cutter operating at P.T.O. speed. If it becomes necessary to regulate engine speed during operation do so gradually.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 8
9. This Mower is only recommended for light duty use on level lawns. Cutting speed will depend upon the height, type, and density of the grass to be cut. Tall or thick grass should be cut at low speed, while short, thin grass can be cut faster. Grass should be cut when dry; wet grass will stick to the Mower and clog it up.
10. If the mower contacts a hidden ob-struction, immediately stop operation. Raise the mower, turn off the tractor, and disconnect the drive shaft. Se-cure the mower in the upright posi-tion. Verify that the mower is not damaged before continung.
IN ORDER TO AVOID PERSONAL INJURY OR PROPERTY DAMAGE. When attempting to stop a tractor which does not have a live PTO, the momentum created by the blades of a mower can cause the tractor to be pushed forward. Do not operate this mower unless the tractor has a live or independent PTO.
11. When finished, move the Mower to the intended storage area, and allow the P.T.O. to rotate to a stop before getting off the tractor.
12. To prevent accidents, disconnect the mower from the tractor after use. Clean, then store the appliance in-doors out of children’s reach.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 9
MAINTENANCE AND SERVICING
Procedures not specifically explained in this manual must be performed only by a qualified technician.
TO PREVENT SERIOUS INJURY
FROM ACCIDENTAL OPERATION: Turn the tractor “OFF” and disconnect the mower before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE: Do not use damaged equipment. If abnormal noise or vibration occurs, have the problem corrected before further use.
Cleaning, Maintenance, and Lubrication
1. BEFORE EACH USE, inspect the general condition of the appliance. Check for loose screws, misalignment or binding of moving parts, cracked or broken parts, and any other condition that may affect its safe operation.
2. AFTER USE, clean external surfaces of the appliance with clean cloth.
Lubrication1. The Wheel Spindle, Blade Spindle
and U-joints must be lubricated with white lithium grease before each use and after every eight hours of opera-
tion. Additional lubrications points are indicated in the following dia-gram.
Filling the Gearbox
2. THE GEARBOX OF THE MOWER MUST BE FILLED WITH SAE 90 EP OIL BEFORE FIRST USE.
3.
Test Plug
Filler Plug
Place the Mower on a flat, level sur-face.
4. Place an approved container under-neath the Test Plug.
5. Remove the Filler and Test Plugs.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 10
6. Add oil into the Filler Plug until it begins to run out the Test Plug. Replace the Test Plug, clean up any spilled oil, and replace the Filler Plug.
7. Check the gearbox oil level after ev-ery eight hours of operation.
Wheel Lubrication
8.
Grease Fitting
The Wheels must be lubricated through the fitting before each use and after eight hours of operation.
Driveshaft Lubrication
9.
Grease Fitting
The U-joints at each end of the drive shaft must be lubricated before each use and after eight hours of opera-tion.
10. Periodically, the metal telescop-ing tubes inside the tractor end of the driveshaft must be lubricated. Spread white lithium grease evenly around the inside of the driveshaft.
Blade Spindle Lubrication
11. The blade spindles can be lubricated through the holes on the main deck. These are clearly marked. All three spindles must be lubricated before each use and after eight hours of operation.
Blade Removal and Installation
1. With the Mower disconnected from the tractor, position it so that the blades are exposed and secure it in place.
2.
Nut
Wrench
Prevent blade rotation by securing it above the blade with a wrench and remove the nut.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 11
3. Remove the blade from the Mower. Sharpen both sides of the cutting surface of the blade to a 1/32” blunt point. Sharpening both edges of the blade maintains blade balance. Do not sharpen the back edges of the blade.
4. Replace the blade and secure with the nut.
Drive Belt Maintenance
1. Loosen all four nuts (A) on the gear-box slide plate. (see figure below).
2.
A BC D
A
E
FG
H
Loosen jam nut (C) on the tension adjustment bolt (D).
3. Remove drive belt shield fasteners and belt shields.
4. Loosen gearbox slide plate bolts and gearbox adjustment bolt.
5. Slide gearbox all the way forward.
6. Slide belts under the gearbox wheel (G) and over the center spindle wheel (H).
7. Place the right hand belt (E) in the lower groove of the gearbox wheel
and that the left hand belt (F) is in the upper groove.
8. Slide the gearbox back to the full rear position
9. Tighten adjustment bolt (D) until the belt deflection along the front side of the belts (E & F) is 3/4” when approx-imately 10 pounds of pressure is ap-plied to the center of the belt length. Do not overtighten belts.
10. Replace Tighten jam nut (C) and nuts (A) on gearbox slide plate.
11. Replace all parts to original positions.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 12
TroubleshootingProblem Possible Causes Likely Solutions
Uneven cutting 1. Slow blade tip speed.2. Dull blade tips.3. Worn blade tips.4. Unable to cut portion of grass
pressed down by tractor’s wheels.5. Mowing too fast.6. Drive belt loose.7. Belt glazed (gear side worn smooth)
or slipping.8. Blade loose on spindle.9. Conditions are too wet for mowing.
1. Operate P.T.O. at 540 RPM.2. Sharpen blade.3. Replace blade.4. Slow tractor’s speed down but
8. Tighten blade nut.9. Allow grass to dry before mowing.
Grass discharges from mower unevenly or in bunches
1. Grass is too high or coarse.
2. Belt slipping.3. Grass is wet.
1. Slow the tractor’s speed. Raise blade for first pass and lower for second pass. Try mowing at a 90° angle to the first cut.
2. Tighten or replace belt.3. Allow grass to dry before mowing.
Heavy vibration 1. Blade speed too fast.2. Bent or broken blade.3. Unbalanced blade.4. Bent or broken gear wheel.
5. Debris caught on blade.
1. Do not exceed 540 RPM P.T.O. 2. Replace blade.3. Grind blade uniformly.4. Have gear replaced by a qualified
technician.5. Stop operation, disconnect mower,
and clean blade.Belt slipping 1. Belt loose.
2. Belt glazed Gear.3. Mowing overflowing.
4. Oil on belt.5. Belt hung or rubbing.
1. Tighten or replace belt.2. Replace belt.3. Slow the tractor’s speed. Raise
blade for first pass and lower for second pass. Try mowing at a 90° angle to the first cut.
4. Clean belt.5. Cean belts or replace.
Belt rollover 1. Damaged belt.2. Object stuck in drive belt gears.3. Worn drive belt gear.
1. Replace belt.2. Clean objects out of drive belt gears.3. Have gear replaced by a qualified
technician.Gearbox overheating 1. Lubricant is low.
2. Excessive material build-up around gearbox.
1. Fill gearbox.2. Clean gearbox.
Follow all safety precautions whenever diagnosing or servicing the appliance. Disconnect power supply before service.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 13
TroubleshootingProblem Possible Causes Likely Solutions
P.T.O. contacts mower when raised
1. Raising mower too high.2. Incorrect adjustment of tractor top
link.
1. Do not raise mower as high.2. Adjust top link or lift stops.
Mower requires excessive power
1. Cutting too quickly.2. Hitting ground.3. Worn blades.4. Tractor too small.5. Grass wet.6. Grass too heavy.
1. Slow down operation.2. Raise mower.3. Sharpen or replace blades.4. Use at least a 20 HP tractor.5. Allow grass to dry before mowing.6. Slow the tractor’s speed. Raise
blade for first pass and lower for second pass. Try mowing at a 90° angle to the first cut.
Follow all safety precautions whenever diagnosing or servicing the appliance. Disconnect power supply before service.
PLEASE READ THE FOLLOWING CAREFULLYTHE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 14
SKU 98777 For technical questions, please call 1-800-444-3353. Page 15
ASSEMBLY DIAGRAM
Record Product’s Serial Number Here: Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not avail-able individually as replacement parts.
SKU 98777 For technical questions, please call 1-800-444-3353. Page 16
90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If our inspection verifies the defect, we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
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