JARVISjarviscanada.com/catalog/25cl456.pdf · 25 1055282 Hex Head Screw 2 26 1055482 Pan Head Screw...

PRODUCTS CORPORATION33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL. [email protected]

TEL. 860-347-7271 FAX. 860-347-6978 WWW. jarvisproducts.com

TABLE OFCONTENTS Page. . . . . . . . . . . . . . . . . . . . . . . . .

25CL--4 4025007. . . . . . . . . . . . . . . . . . . . .25CL--5 4025008. . . . . . . . . . . . . . . . . . . . .25CL--6 4025009. . . . . . . . . . . . . . . . . . . . .27--HTC Hydraulic Power Unit 4027120.Balancer (25CL--4, --5) 4042003. . . . . . . .Balancer (25CL--6) 4042004. . . . . . . . . . .

•Notice to Employer and SafetyDirector 2. . . . . . . . . . . . . . . . . . . . . . . . .

•Notice to Operators, Maintenanceand Cleanup Personnel 3. . . . . . . . . . . .

•Parts Diagram and List 4. . . . . . . . . . . .• Installation Instructions 10. . . . . . . . . . .•Operation Instructions 12. . . . . . . . . . . .•Maintenance Instructions 12. . . . . . . . .

Model 25CL--4, 5, 6HockCutter and LoinDropper

25CL--4Hind Legs and Horns

25CL--5Front Legs and Horns

25CL--6Loins

EQUIPMENTSELECTION Ordering No.. . . . . . . . . . . . .

®JARVIS6225005:.

notice to employerand safety director

Model 25CL -- 4, 5, 6 page 2 of 16




®JARVIS6225005:.

NOTICE TO EMPLOYER AND SAFETY DIRECTORAVOID INJURY

1. Remove and repair any tool that malfunctions. All personnel must be instructed to remove any mal-functioning equipment.

2. Ensure that all employees who use this tool are trained in the proper use of this tool and are aware ofthe dangers that may arise if they do not follow procedures outlined in this brochure.

3. Enclosed are four (4) copies of “NOTICETOOPERATORS,MAINTENANCEANDCLEANUPPER-SONNEL.” Post one copy on the employees’ bulletin board; give one copy to the operator(s); give onecopy to themaintenance foreman; andgive one copy to the sub--contract cleanup / internal cleanup fore-man. Additional copies will be provided upon request.

4. The tool is designed and intended to be powerful. This fact should be obvious to your employees, butyou must emphasize it to them.

5. Never make modifications or alterations to the tool. Replace any missing or illegible labels.

6. Ensure that proper procedures are established in accordance with OSHA’s lockout/tagout procedures(29 CFR 1910.147) to prevent accidental startup or release of stored energy.

7. Follow our installation and maintenance instructions for proper installation and care of the tool.

8. Avoid injury. Do not permit the tool to be misused.

9. If you resell or distribute a Jarvis product, youmust provide the purchaser with the appropriate safetysheets and tool brochure. Additional copies of safety sheets and tool brochures will be provided uponrequest.

Keep hands clear.

notice to operators, maintenanceand cleanup personnel

Model 25CL -- 4, 5, 6page 3 of 16




®JARVIS6225005:.

NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PERSONNELREMOVE ANY MALFUNCTIONING TOOL FROM SERVICE

REPORT ANY PROBLEMS TO YOUR SUPERVISOR

1. Disconnect all hydraulic and air hoses and shut the power off in accordance with OSHA’s lockout/tag-out procedures (29 CFR 1910.147) before sharpening blades.

2. Disconnect all hydraulic and air hoses and shut the power off in accordance with OSHA’s lockout/tag-out procedures (29 CFR 1910.147) before performing any repair or maintenance.

3. Disconnect all hydraulic and air hoses and shut the power off -- or have all hydraulic and air hoses dis-connected and the power shut off -- in accordance with OSHA’s lockout/tagout procedures (29 CFR1910.147) before performing any cleanup.

4. Disconnect all hydraulic and air hoses and shut the power off when the tool is not being used.

5. Clean up any spilled or leaked hydraulic fluid.

6. Never put fingers, hands or other parts of the body on the cutting edge, within the cutting path orwithinthe path of the moving links.

7. Test the tool prior to use or daily. Depress one trigger, then pause one second and depress the othertrigger and the blades should not close. Repeat this procedure reversing the triggers. Depress bothtriggers simultaneously and the blades should close. With the blades closed, release one trigger andthe blades should open. Continue holding the depressed trigger and then depress the other trigger. Theblades should not close. Repeat this procedure holding the other trigger. If the tool malfunctions, re-move it from service and report or repair it immediately.

8. Never depress the triggers unless you want to use the tool.

9. Never make modifications or alterations to the tool. Replace any missing or illegible labels.

Keep hands clear.

parts diagram and listModel 25CL -- 4, 5, 6 page 4 of 16




®JARVIS6225005:.

Figure A

25CL--4, --5

ITEM PART NO. PART NAME QTY

1 1011087 Quick Connect Socket 12 1050056 Swivel Elbow 13 1035163 O--ring 24 1032071 Bushing Retaining Plate 15 1050108 Hex Nipple 16 1035162 O--ring 17 1036064 Seal Retaining Bushing 18 1035025 “U” Cup Seal 29 1013028 Back Up Ring 110 1004039 Gland Washer 111 1032070 Seal Retaining Plate 112 1007018 Hex Jam Nut 113 1011046 Rod Coupling 114 1016069 Clevis Housing 115 3013004 Collar Assembly 116 1004073 Split Lock Washer 717 1011094 Eye Bolt 118 1010056 Dowel Pin 119 1007023 Hex Lock Nut 220 1028004 Toggle Link 221 1055063 Link Bolt 222 1004005 Split Lock Washer 223 1055285 Hex Head Screw 224 1023013* Blade, 25CL--4 only 2

1023016** Blade, 25CL--5 only25 1055282 Hex Head Screw 226 1055482 Pan Head Screw 827 1024230 Guard with items 26 & 28 228 1017082 Danger Label 229 1010062 Cotter Pin 130 1007040 Hex Castle Nut 1

ITEM PART NO. PART NAME QTY31 1055026 Set Screw 132 1055207 Clevis Bolt 133 1055168 Socket Head Cap Screw 434 1004032 Washer 435 1035033 “U” Cup Seal 236 1013037 Back Up Ring 237 1020079 Piston Rod 138 1017083 Danger Label 139 1016110 Cyl. Housing with item 38 140 1002051 Cylinder Rear Plate 141 1042060 Handle Bracket 142 1050563 Hex Reducer Nipple 143 1055054 Socket Head Cap Screw 444 1011086 Quick Connect Plug 145 1071086 Plastic Tubing 146 1014176 Spring 147 1023480* Grabber Blade, 25CL--4 2

1023481** Grabber Blade, 25CL--5 248 1010470 Pin 249 1054176 Clevis Bolt 150 1029364 Spacer 151 1007349 Hex Nut 152 1054177 Pivot Bolt 153 1004368 Washer 254 1004251 Split Lock Washer 255 1007217 Hex Jam Nut 256 1007348 Hex Slotted Nut 157 1010347 Cotter Pin 158 1010469* Dowel Pin (with item 47*) 2

1008011 Cylinder Assy (incls items3, 4, 6--11, 35--41 and 43 )

3035004 Seal Kit (incls items 3, 6,8--10, 35 and 36)

Optional GrabberAssembly 3023179

25CL--4

* for Model 25CL--4 only** for Model 25CL--5 only

**

**

Optional GrabberAssembly 3023180

25CL--5

*

**

**

parts diagram and listModel 25CL -- 4, 5, 6page 5 of 16




®JARVIS6225005:.

Figure B

25CL--6


1 3020029 Blade Pivot Shaft 12 1055246 Button Head Cap Screw 43 1007403 Hex Lock Nut 24 1055084 Button Head Cap Screw 25 1004073 Split Lock Washer 26 1042502 Front Support Bracket 17 1013088 Collar Assembly 28 1020063 Shaft 19 1055175 Button Head Cap Screw 110 1042097 Rear Bracket 111 1028058 Toggle Link 212 1020124 Link Bolt 213 1029386 Spacer 614 1055959 Button Head Cap Screw 315 1024252 Coupling Guard 116 1024253 Link Guard w/items 23 & 27 217 1011153 Rod Coupling 118 1016186 Clevis Housing 119 1010203 Dowel Pin 120 1055168 Socket Head Cap Screw 421 1007399 Hex Lock Nut 122 1004144 Washer 1


23 1017082 Danger Label 224 1023107 Blade 225 1032126 Wear Plate 126 1014073 Disc Spring 127 1055482 Pan Head Screw 828 1007018 Hex Jam Nut 129 1032070 Seal Retaining Plate 130 1035025 “U” Cup Seal 231 1004039 Gland Washer 132 1013028 Back Up Ring 133 1036064 Seal Retaining Bushing 134 1035162 O--ring 135 1050056 Swivel Elbow 136 1050108 Hex Nipple 137 1050602 Reducer Bushing 138 1011087 Quick Connect Socket 139 1032071 Bushing Retaining Plate 140 1035163 O--ring 241 1035033 “U” Cup Seal 242 1013037 Back Up Ring 243 1020079 Piston Rod 144 1016110 Cyl. Housing with item 45 145 1017083 Danger Label 146 1002051 Cylinder Rear Plate 147 1042060 Handle Bracket 148 1055054 Socket Head Cap Screw 449 1050563 Hex Reducer Nipple 150 1011086 Quick Connect Plug 1

1008011 Cylinder Assembly Kit(incls items 29--34, 39--48)

3035004 Seal Kit (incls items 30--32,34, 40--42)

3024048 Guard Kit (incls items 2, 5,6, 9, 13--16, 23 and 27)





®JARVIS6225005:.

Figure C

25CL--425CL--525CL--6

Handle Assembly

quantities listed are per handle.

2--port control handle requires one (1) item 1.5--port control handle requires three (3) item 1.

2--port control handle requires one (1) item 2.5--port control handle requires two (2) item 2.

1 1051124 Tube Fitting 1/4 inch2 1051159 Tube Fitting 3/8 inch3 1022098 Manifold (5-port) 1

(includes item 4)4 1035173 O--ring 15 1035029 O--ring 16 1035280 O--ring 27 1039043 Plunger 1

(includes (2) item 6)8 1022097 Valve Body 1

(includes items 5 and 19)9 1014100 Valve Spring 110 1006037 Trigger Button 111 1019104 Handle 112 1024035 Trigger Guard 113 1055134 Socket Head Screw 214 1012033 Guard Clamp 115 1004003 Ext. Tooth Lock Washer 216 1055065 Hex Head Screw (2--port) 1

1055046 Hex Head Screw (5--port) 11007183 Hex Lock Nut 1

17 1055043 Cup Point Set Screw 218 1055492 Cup Point Set Screw 119 1050509 Flush Hex Plug 120 1022099 Manifold (2-port) 1

(includes item 4)3022039 Valve Assy. (includes

items 5-10, 18 and 19)3019091 Control Handle Assy.

(2-port) (includes items1, 2, 4-14, and 17-20)

3019092 Control Handle Assy.(5-port) (includes items1-14 and 17--19)

1061355 Yellow 1/4 by 12 inch Hose 11059030 Grey 3/8 by 12 inch Hose 1






®JARVIS6225005:.

ITEM PART NO. PART NAME QTY ITEM PART NO. PART NAME QTY

Figure D

27--HTC Hydraulic Power Unit (Vertical)

1 1008083 Electric Motor, 460V/60HZ 12 1034013 Breather Filler Cap Assy 13 1005019 Pressure Switch/Wire Assy 14 1022042 Directional Control Valve 1

1063072 Coil for.115V Valve5 1011052 Strain Relief Connector 16 1007130 Locking Nut 17 1035678 Seal Ring 18 1022082 Relief Valve Cartridge 19 1032179 Sub Plate 110 1025027 Oil Level Gage 111 1059003 Hose Assembly 212 1011086 Quick Connect Plug 1

13 1011087 Quick Connect Socket 114 1025022 Hydraulic Pressure Gage 115 1050090 Hex Pipe Nipple, 2 in 116 1050127 Pipe Tee 117 1050462 Hex Pipe Nipple, 4 in 118 1050126 Pipe Elbow 119 1011227 Coupling, Motor Half 120 1011229 Coupling, Spider Center 121 1011228 Coupling, Pump Half 122 3008065 Hydraulic Pump 123 1061278 U--Shape Tubing 124 1034007 Suction Strainer 125 3016194 Electric Control Box Assy 1





®JARVIS6225005:.

ITEM PART NO. PART NAME QTY ITEM PART NO. PART NAME QTY

Figure E

27--HTC HydraulicPower Unit(Horizontal)4027120

1 1008193 Electric Motor, 460/230V 12 1042361 Mounting Bracket 13 1034064 Triangular Filter Assy 1

1034062 Filter Element only1034052* Square Filter Assy1034048* Filter Element only

4 1061734 Tubing Assy, Return 15 1011324 Coupling, Motor Half 16 1011326 Coupling, Spider Center 17 1011325 Coupling, Pump Half 18 1050515 Adapter, Elbow 19 3008065 Pump, Hydraulic 110 1005019 Switch and Wire Assy 111 1050865 Reducer Bushing 112 1050753 Hex Reducer Bushing 113 1050508 Hex Nipple, 1.5 inch 114 1025022 Pressure Gage 115 1050127 Pipe Tee 216 1061733 Supply Tubing Assy 1

17 1050668 Male Elbow 318 1034013 Filler Breather Cap Assy 119 1022251 Directional Control Valve 1

1063843 din/iso Coil for 115V Valve20 1072135 din/iso Connector 221 1055376 Socket Head Cap Screw 422 3016193 Control Box Assy (see pg 4) 123 1022120 Sub Plate 124 1050462 Hex Pipe Nipple, 4 inch 125 1050090 Hex Pipe Nipple, 2 inch 126 1022119 Relief Valve Cartridge 127 1050126 Pipe Elbow 128 1051058 Hex Pipe Nipple 129 1025045 Oil Level Gage 130 1059003 Hydraulic Hose Assy, 16 ft 231 1034007 Suction Strainer Filter 132 1054166 Drain Plug with Magnet 133 1011086 Quick Connect Plug 134 1011087 Quick Connect Socket 1

* not used in current units





®JARVIS6225005:.


Figure F

Electric/Pneumatic Control Box

1 1055197 Socket Head Cap Screw 22 1004206 Washer 23 1007355 Hex Lock Nut 24 1051001 Quick Connect Plug 15 1051159 Tubing Connector 16 1061354 Grey Tubing, 20 ft 17 1034014 Air Filter 18 1051069 Air Bleed Fitting 29 1051063 Street Tee 210 1061255 Yellow Tubing, 20 ft 211 1004154 Washer 412 1051124 Tubing Connector 213 1051065 Transducer (Actuator) 214 1073072 Plastic Screw 415 1029445 Hex Spacer 416 1004244 Internal Lock Washer 417 1005059 Electric Switch 218 1063311* Pigtail Fuse, 115V

1063312* Pigtail Fuse, 230V

19 1072071 ATD Circuit Board, 115V 11072072 ATD Circuit Board, 230V

20 1072091 Cylindrical Fuse, 115V 11063862 Cylindrical Fuse, 230V

21 1063502 Wire Terminal Fork 1322 1063079 Wire Terminal Ring 223 1017012 Electrical Warning Label, 115V 1

1017150 Electrical Warning Label, 230V24 1017114 Wiring Diagram, 115V 1

1017153 Wiring Diagram, 230V25 1004211 Sealing Washer 326 1011240 Strain Relief Connector 327 1001295 Electric Cord, 4 ft 228 1007278 Locking Nut 429 1032266 Panel 130 1016347 Electrical Enclosure 1

3016193 Control Box Complete, 115V3016212 Control Box Complete, 230V


* not used in current units*

*

installation instructionsModel 25CL -- 4, 5, 6 page 10 of 16




®JARVIS6225005:.

INSTALLATION INSTRUCTIONS

Anti--Tie DownElectric Control Box(Factory Installed onHydraulic 27--HTC)

25CL--4,5,6

Hydraulic Power Unitfor 25CL--4,5,6(Vertical and Horizontal)

Grey Hosep/n 1061354

Yellow Hosep/n 1061255Hydraulic

PressureHydraulicReturn

HydraulicPressureHose

HydraulicReturnHose

To 115 VoltSupply

To DirectionalControl Valve

Air SupplyInlet

(Horizontal)

(Vertical)

HydraulicPressureHose

HydraulicReturnHose

installation instructionsModel 25CL -- 4, 5, 6page 11 of 16




®JARVIS6225005:.

IMPORTANT:ALWAYSDISCONNECTALLHYDRAULICAND

AIR HOSES AND SHUT THE POWEROFF IN ACCORDANCE

WITH OSHA’S LOCKOUT/TAGOUT PROCEDURES (29 CFR

1910.147) BEFORE PERFORMING ANY MAINTENANCE OR

REPAIRS.

Refer to the installation diagrams (pages 10 and 11) for steps 1 --6.1.3. Refer to Figure C, page 6 and Figure F, page 9 as noted.

1 Install the 25CL--4,5,6 above the work station froma balancer (4042004 or 4042003).

1.1 The 25CL--4,5,6 should have sufficient travel toallow the operator to reach the entire work area.

2 Install the hydraulic power unit above the operator’sstation.

3 Fill the oil reservoir with a USDA approved pre-mium grade hydraulic fluid ( viscosity: 200 S.U.S.at 100° F / 46 ISO at 40° C ).

4 Make all the necessary air connections.

4.1 The air supply inlet pipe should be 3/8 inch diam-eter minimum.

4.2 The required compressed air supply is 40 psiminimum to 50 psi maximum.

4.3 An air regulator must be installed to the air sup-ply inlet at the quick connect plug (item 4, Fig-ure F).

5 Make all necessary hose connections. Refer to ap-plicable manifold, item 3 or 20, Figure C.

5.1 Attach one end of both yellow hoses (part num-ber 1061255) to the tube fittings (item 1, FigureC) on the 25CL--4,5,6.

5.2 Attach the free ends of the yellow hoses to thefittings (item 12, Figure F) on the anti--tie downelectric/pneumatic control box.

5.3 Attach one end of the grey hose (part number1061354) to the tube fitting (item2, FigureC) onthe 25CL--4,5,6.

5.4 Attach the free end of the grey hose to the fitting(item 5, Figure F) on the anti--tie down electric/pneumatic control box.

6 Make all the necessary wiring connections. All wir-ing must be done in accordance with the national,state and local electrical codes.

Directional Control Valve

Anti--Tie DownElectric / PneumaticControl Box

Figure 1

6.1 Adjust the cutter opening.

6.1.1 Close the cutter.

6.1.2 Release the triggers.

6.1.3 Set the timer [the group of four rocker switcheson the ATD board (item 19 , Figure F)] so thatthe valve on the hydraulic power unit is de--en-ergized after the blades have just fully opened.The older ATD boards have a timer that is asquare potentiometer with a screw driver slot.See Figure 1 above.

operation andmaintenance instructions

Model 25CL -- 4, 5, 6 page 12 of 16




®JARVIS6225005:.

OPERATION INSTRUCTIONS

1 Connect all air hoses.

2 Connect all hydraulic hoses.

3 Turn on the power.

4 Each day, before you begin operation, go throughthe following checklist:

4.1 Make sure that the compressed air supply is atthe proper pressure.

4.2 Make sure that the 25CL--4,5,6 moves freely onthe balancer.

4.3 Make sure that the dual anti-tie down controlhandles (the front and the rear handles) areworking correctly. Depress each trigger sepa-rately and the blades should not close. Depressone trigger, then pause one second and depressthe other trigger and the blades should not close.Repeat this procedure reversing the triggers.

Depress both triggers simultaneously (withinone half second of each other) and the bladesshould close. With the blades closed, releaseone trigger and the blades should open. Contin-ue holding the depressed trigger and then de-press the other trigger. The blades should notclose. Repeat this procedure holding the othertrigger. If the tool malfunctions, remove it fromservice and report the problem to your supervi-sor immediately.

5 Making the cut:

5.1 Place 25CL--4,5,6 cutter around the hock, hornor loin of the carcass.

5.2 Depress both triggers simultaneously to closethe blades.

5.3 Release either or both triggers to open theblades.

MAINTENANCE INSTRUCTIONS

IMPORTANT:ALWAYSDISCONNECTALLHYDRAULICAND

AIR HOSES AND SHUT THE POWEROFF IN ACCORDANCE

WITH OSHA’S LOCKOUT/TAGOUT PROCEDURES (29 CFR

1910.147)WHENINSTALLINGORREMOVINGABLADE. AL-

WAYS DISCONNECT ALL HYDRAULIC AND AIR HOSES

AND SHUT THE POWER OFF IN ACCORDANCE WITH

OSHA’S LOCKOUT/TAGOUT PROCEDURES (29 CFR

1910.147) BEFORE PERFORMING ANY MAINTENANCE OR

REPAIRS.

1 DAILY: Refer to Figure D, page 7 and Figure E,page 8 as applicable.

1.1 The 25CL-4,5,6 is equipped with dual anti-tiedown control handles (the front and the rear han-dles). Check for the correct operation of the dualanti-tie down control handles before each shiftevery day. Depress each trigger separately andthe blades should not close. Depress one trig-ger, then pause one second and depress the othertrigger and the blades should not close. Repeat

this procedure reversing the triggers. Depressboth triggers simultaneously (within one half se-cond of each other) and the blades should close.With the blades closed, release one trigger andthe blades should open. Continue holding thedepressed trigger and then depress the other trig-ger. The blades should not close. Repeat thisprocedure holding the other trigger. If the toolmalfunctions, repair or remove it from serviceimmediately.

1.2 At the end of the shift every day, check the levelof oil in reservoir gage (item 10, Figure D, page7 or item 29, Figure E, page 8) and fill if neces-sary.

2 25CL -- 4, 5 BLADE DISASSEMBLY: Refer toFigure A, page 4.

2.1 Remove cotter pin (item 29).

2.2 Remove hex castle nut (item 30).

maintenance instructionsModel 25CL -- 4, 5, 6page 13 of 16




®JARVIS6225005:.

2.3 Remove set screw (item 31).

2.4 Remove clevis bolt (item 32).

2.5 Remove hex lock nuts (item 19) and link bolts(item 21).

2.6 Remove blades (item 24).

2.7 Inspect all parts for wear and replace if neces-sary.

2.8 Inspect blades (item 24) for wear and sharpen ifnecessary.

P/N 102301625CL -- 5

P/N 102301325CL -- 4

grind hereto sharpen


3 25CL -- 6BLADEDISASSEMBLY: Refer toFigureB, page 5.

3.1 Remove hex lock nuts (item 3) and link bolts(item 12).

3.2 Remove hex lock nut (item 21), washer (item22) and blade pivot shaft (item 1).

3.3 Remove wear plate (item 25) and disc spring(item 26).

3.4 Remove blades (item 24).

3.5 Inspect all parts for wear and replace if neces-sary.

3.6 Inspect blades (item 24) for wear and sharpen ifnecessary.

P/N 102310725CL -- 6


4 25CL -- 4, 5 LINKDISASSEMBLY: Refer to FigureA, page 4.

4.1 Remove socket head cap screws (item 33), splitlock washers (item 16), and washers (item 34).

4.2 Slide out clevis housing (item 14).

4.2.1 The hole in the clevis housing must line upwith dowel pin (item 18) in rod coupling (item13).

4.3 Remove dowel pin (item 18).

4.3.1 Use a drive pin punch.

4.3.2 The dowel pin must be punched out from thesmaller hole in the clevis housing through thelarger hole in the clevis housing.

4.4 Remove toggle links (item 20).

4.5 Remove clevis housing (item 14).

4.6 Inspect the parts for wear and replace them ifnecessary.

5 25CL -- 6 LINK DISASSEMBLY: Refer to FigureB, page 5.

5.1 Remove the two (2) button head cap screws(items 2 and 9) and split lock washers (item 5)that screw into the clevis housing (item 18).

5.2 Remove support bracket assembly (items 4, 6--8and 10).

5.3 Extend the piston rod (item 43).

5.3.1 The hole in the clevis housing (item 18) mustline up with dowel pin (item 19) in rod cou-pling(item 17).

5.4 Remove dowel pin (item 19).

5.4.1 Use a drive pin punch.

5.4.2 The dowel pin must be punched out from thesmaller hole in the clevis housing through thelarger hole in the clevis housing.

5.5 Remove toggle links (item 11).

maintenance instructionsModel 25CL -- 4, 5, 6 page 14 of 16




®JARVIS6225005:.

5.6 Remove socket head cap screws (item 20).

5.7 Remove clevis housing (item 18).

6 25CL -- 4, 5, 6 CYLINDERDISASSEMBLY: Referto applicable figures; Figure A, page 4 and FigureB, page 5 as noted.

6.1 Place rod coupling (item 13, Figure A or item17, Figure B) in vise.

6.2 Tighten hex jam nut (item 12, Figure A or item28, figure B) up to rod coupling.

6.3 Unscrew piston rod (item 37, Figure A or item43, Figure B) from rod coupling.

6.3.1 It may be necessary to heat up (300° F maxi-mum) the end of the piston rod and the rod cou-pling because the two items are bonded togeth-er with Loctite. Use heat protective gloves.

6.4 Remove hex jam nut (item 12, Figure A or item28, Figure B).

6.5 Remove seal retaining plate (item 11, Figure Aor item 29, Figure B).

6.6 Remove bushing retaining plate (item 4, FigureA or item 39, Figure B).

6.7 Remove socket head cap screws (item 43, Fig-ure A or item 48, Figure B).

6.8 Remove handle bracket (item 41, Figure A oritem 47, Figure B).

6.9 Remove cylinder rear plate (item 40, Figure Aor item 46, Figure B).

6.10 Remove piston rod (item 37, Figure A or item43, Figure B).

6.11 Remove seal retaining bushing (item 7, FigureA, or item 33, Figure B).

6.12 Inspect the parts for wear and replace them ifnecessary. (See 25CL -- 4, 5, 6 cylinder assem-bly, step 7, for seal replacement instructions).

7 25CL -- 4, 5, 6 CYLINDER ASSEMBLY: Refer toapplicable figures; Figure A, page 4 and Figure B,page 5 as noted.

7.1 Place new o--ring (item 6, Figure A or item 34,Figure B) on seal retaining bushing (item 7, Fig-

ure A or item 33, Figure B). Use Jarvis 1315White Grease.

7.2 Place new o--rings (item 3, Figure A or item 40,Figure B) on bushing retaining plate (item 4,Figure A, or item 39, Figure B) and on cylinderrear plate (item 40, Figure A or item 46, FigureB).

7.3 Install bushing retaining plate (item 4, Figure Aor item 39, Figure B) onto cylinder housing(item 39, Figure A or item 44, Figure B).

7.4 Push piston rod (item 37, Figure A or item 43,Figure B) through cylinder housing (item 39,Figure A or item 44, Figure B).

7.4.1 Be sure that flats onU--cup seals (item 35, Fig-ure A or item 41, Figure B) face together.

7.4.2 Use Jarvis 1315 White Grease or hydraulicfluid in the inside of cylinder housing (item39,Figure A or item 44, Figure B).

7.4.3 The threaded end of piston rod (item 37, Fig-ure A or item 43, Figure B) should be pushedthrough the seal retaining bushing (item7, Fig-ure A or item 33, Figure B).

7.4.4 Use a blunt screwdriver to help guide in thesealed end of piston rod (item 37, Figure A oritem 43, Figure B).

7.5 Install u--cup seals, back up ring and glandwasher (items 8--10, Figure A or items 30--32,Figure B) over piston rod (item 37, Figure A oritem 43, Figure B).

7.5.1 Cover the threads of the piston rodwith a pieceof paper. Spray the paper with silicon.

7.5.2 Roll one u--cup seal (item 8, Figure A or item30, Figure B) over the piston rod.

7.5.3 Place backup ring (item9, FigureAor item32,Figure B) over the piston rod.

7.5.4 Place gland washer (item 10, Figure A or item31, Figure B) over the piston rod.

7.5.5 Roll remaining u--cup seal (item 8, Figure A oritem 30, Figure B) over the piston rod. The u--cup seals must be placed back--to--back.

maintenance instructionsModel 25CL -- 4, 5, 6page 15 of 16




®JARVIS6225005:.

7.6 In one continuous motion, slide seal retainingplate (item 11, Figure A or item 29, Figure B)onto bushing retaining plate (item 4, FigureA oritem 39, Figure B).

7.7 Place assembly into vise. Do not over--tighten!

7.7.1 Clamp piston rod (item 37, Figure A or item43, Figure B) with soft jaws and rest seal re-taining plate (item 11, Figure A or item 29,Figure B) on top of the vise.

7.8 Lubricate the inside of cylinder housing (item39, Figure A or item 44, Figure B) with Jarvis1315 White Grease.

7.9 Push rear plate (item 40, Figure A or item 46,Figure B) into cylinder housing (item 39, FigureA or item 44, Figure B).

7.10 Place handle bracket (item 41, Figure A or item47, Figure B) onto cylinder housing (item 39,Figure A or item 44, Figure B) and fasten withsocket head cap screws (item 43, Figure A oritem 48, Figure B).

7.11 Remove assembly from the vise and temporarilyfasten seal retaining plate (item 11, Figure A oritem 29, Figure B) to cylinder housing (item 39,Figure A or item 44, Figure B).

7.12 Push piston rod (item 37, Figure A or item 43,Figure B) all the way into the cylinder housing(item 39, Figure A or item 44, Figure B).

7.13 Screwhex jamnut (item12, FigureAor item28,Figure B) as far as possible onto the threadedend of piston rod (item 37, Figure A or item 43,Figure B).

7.14 Screw rod coupling (item 13, Figure A or item17, FigureB) onto the threaded end of piston rod(item 37, Figure A or item 43, Figure B). Sealwith Loctite 271.

7.14.1 25CL--4: Adjust rod coupling so that the cen-ter hole on the rod coupling is 41/4 inches fromthe seal retaining plate (item 11, Figure A).

7.14.2 25CL--5: Adjust rod coupling so that the cen-ter hole on the rod coupling is 41/8 inches fromthe seal retaining plate (item 11, Figure A).

7.14.3 25CL--6: Screw rod coupling onto the pistonas far as it will go.

7.15 Back off hex jam nut (item 12, Figure A or item28, Figure B) until it is tightened to rod coupling(item 13, Figure A or item 17, Figure B).

7.16 Remove temporary fasteners.

8 25CL -- 4, 5 BLADEANDLINKASSEMBLY: Re-fer to Figure A, page 4.

8.1 Lubricate the mating pivot area of the blades(item 24) using Jarvis 1315 White Grease.

8.2 Place blades (item 24) into clevis housing (item14).

8.2.1 Place the flat sides of the blades together.

8.2.2 Line up the large holes in clevis housing withthe large holes in the blades.

8.3 Push clevis bolt (item 32) through the alignedholes.

8.4 Tighten set screw (item 31).

8.5 Tighten hex castle nut (item 30).

8.5.1 Back off the hex castle nut so that the bladescanmove, but also so that there is no play in be-tween the blades.

8.6 Install the cotter pin (item 29).

8.7 Place cylinder housing assembly into vise (sealretaining plate, item 11, should be facing up).Do not over--tighten!

8.8 Place the clevis housing assembly onto the sealretaining plate (item 11).

8.9 Fasten clevis housing assembly to the cylinderhousing assembly with washers (item 34), splitlock washers (item 16) and socket head capscrews (item 33).

8.10 Remove complete assembly from the vise.

8.11 Align the hole in the rod coupling (item 13)withthe hole in the clevis housing (item 14).

8.11.1 If all hose couplings are still attached to the25CL -- 4, 5, it will be necessary to relieve thepressure in the cylinder housing (item 39)through quick connect plug (item 44).

maintenance instructionsModel 25CL -- 4, 5, 6 page 16 of 16




®JARVIS6225005:.

8.12 Place toggle links (item 20) into the clevis hous-ing (item 14).

8.12.1 Place the flat side of each toggle link together.

8.12.2 Align the small holes in clevis housing withthe hole of each toggle link.

8.13 Push dowel pin (item 18) into the aligned holes.

8.14 Install link bolts (item 21) and fasten with hexlock nuts (item 19).

8.14.1 Align the small hole in each blade (item 24)with the holes of each toggle link.

8.14.2 Push clevis bolt through and fasten with hexlock nut.

8.14.3 Back off the hex lock nuts so that the bladescan move, but also so that there is no play be-tween the blades.

9 25CL -- 6 BLADE AND LINK ASSEMBLY: Referto Figure B, page 5.

9.1 Lubricate the pivot area of the blades (item 24)using Jarvis 1315 White Grease.

9.2 Place blades (item 24) into clevis housing (item18).

9.2.1 Place the flat sides of the blades together.

9.2.2 Align the large holes in clevis housingwith thelarge holes in the blades.

9.3 Place disc spring (item 26) into wear plate (item25).

9.4 Slide wear plate (item 25) into clevis housing(item 18).

9.4.1 Place the wear plate on top of the blades andalign the holes. The flat side of the wear platecontacts the blade.

9.5 Push blade pivot shaft (item 1) through thealigned holes.

9.5.1 Be sure that the roll pin in the blade pivot shaftis seated in wear plate (item 25).

9.6 Fasten blade pivot shaft (item 1) with washer(item 22) and hex lock nut (item 21).

9.6.1 Back off the hex lock nut so that the blades canmove, but also so that there is no play betweenthe blades.

9.7 Place cylinder housing assembly into vise (sealretaining plate, item 29, should be facing up).Do not over--tighten!

9.8 Place the clevis housing assembly onto the sealretaining plate (item 29).

9.9 Fasten clevis housing assembly to the cylinderhousing assembly with socket head cap screws(item 20).

9.10 Remove complete assembly from the vise.

9.11 Line up the hole in the rod coupling (item 17)with the hole in the clevis housing (item 18).

9.11.1 If all hose couplings are still attached to the25CL -- 6, it will be necessary to relieve thepressure in the cylinder housing (item 44)withquick connect plug (item 50).

9.12 Place toggle links (item 11) into the clevis hous-ing (item 18).

9.12.1 Align the small holes in clevis housing withthe small holes in the toggle links.

9.13 Push dowel pin (item 19) into the aligned holes.

9.14 Install link bolts (item 12) and fasten with hexlock nuts (item 3).

9.14.1 Align the small hole in each blade (item 24)with the hole of each toggle link.

9.14.2 Push link bolt through and fastenwith hex locknut.

9.14.3 Back off the hex lock nuts so that the bladescan move, but also so that there is no play be-tween the blades.

9.15 Install bracket assembly (items 4, 6--8 and 10)and fasten with two (2) button head cap screws(items 2 and 9) and split lock washers (item 5).

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