Model25CL-4,5,6 Hock Cutter and Loin Dropper 25CL--4 Hind Legs and Horns 25CL--5 Front Legs and Horns 25CL--6 Loins EQUIPMENT SELECTION... Ordering No. TABLE OF CONTENTS... 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 Safety Director... 2 Notice to Operators, Maintenance and Cleanup Personnel... 3 Parts Diagram and List... 4 Installation Instructions... 10 Operation Instructions... 12 Maintenance Instructions... 12
noticetoemployer and safety director Model 25CL -- 4, 5, 6 page 2 of 16 Keep hands clear. NOTICE TO EMPLOYER AND SAFETY DIRECTOR AVOID INJURY 1. Remove and repair any tool that malfunctions. All personnel must be instructed to remove any malfunctioning equipment. 2. Ensure that all employees who use this tool are trained in the proper use of this tool and are aware of the dangers that may arise if they do not follow procedures outlined in this brochure. 3. Enclosed are four (4) copies of NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PER- SONNEL. Post one copy on the employees bulletin board; give one copy to the operator(s); give one copy to the maintenance foreman; and give one copy to the sub -contract cleanup / internal cleanup foreman. 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, but you 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, you must provide the purchaser with the appropriate safety sheets and tool brochure. Additional copies of safety sheets and tool brochures will be provided upon request.
notice to operators, maintenance and cleanup personnel page 3 of 16 Model 25CL -- 4, 5, 6 Keep hands clear. NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PERSONNEL REMOVE 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/tagout 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/tagout 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 disconnected and the power shut off - in accordance with OSHA s lockout/tagout procedures (29 CFR 1910.147) 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 or within the path of the moving links. 7. Test the tool prior to use or daily. Depress one trigger, then pause one second and depress the other trigger and the blades should not close. Repeat this procedure reversing the triggers. Depress both triggers simultaneously and the blades should close. With the blades closed, release one trigger and the blades should open. Continue holding the depressed trigger and then depress the other trigger. The blades should not close. Repeat this procedure holding the other trigger. If the tool malfunctions, remove 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.
parts diagram and list Model 25CL -- 4, 5, 6 page 4 of 16 Figure A Optional Grabber Assembly 3023179 25CL -4 ** * 25CL-4, -5 * * ** Optional Grabber Assembly 3023180 25CL -5 ** * for Model 25CL--4 only ** for Model 25CL--5 only ITEM PART NO. PART NAME QTY 1 1011087 Quick Connect Socket 1 2 1050056 Swivel Elbow 1 3 1035163 O--ring 2 4 1032071 Bushing Retaining Plate 1 5 1050108 Hex Nipple 1 6 1035162 O--ring 1 7 1036064 Seal Retaining Bushing 1 8 1035025 U Cup Seal 2 9 1013028 Back Up Ring 1 10 1004039 Gland Washer 1 11 1032070 Seal Retaining Plate 1 12 1007018 Hex Jam Nut 1 13 1011046 Rod Coupling 1 14 1016069 Clevis Housing 1 15 3013004 Collar Assembly 1 16 1004073 Split Lock Washer 7 17 1011094 Eye Bolt 1 18 1010056 Dowel Pin 1 19 1007023 Hex Lock Nut 2 20 1028004 Toggle Link 2 21 1055063 Link Bolt 2 22 1004005 Split Lock Washer 2 23 1055285 Hex Head Screw 2 24 1023013* Blade, 25CL--4 only 2 1023016** Blade, 25CL--5 only 25 1055282 Hex Head Screw 2 26 1055482 Pan Head Screw 8 27 1024230 Guard with items 26 & 28 2 28 1017082 Danger Label 2 29 1010062 Cotter Pin 1 30 1007040 Hex Castle Nut 1 ITEM PART NO. PART NAME QTY 31 1055026 Set Screw 1 32 1055207 Clevis Bolt 1 33 1055168 Socket Head Cap Screw 4 34 1004032 Washer 4 35 1035033 U Cup Seal 2 36 1013037 Back Up Ring 2 37 1020079 Piston Rod 1 38 1017083 Danger Label 1 39 1016110 Cyl. Housing with item 38 1 40 1002051 Cylinder Rear Plate 1 41 1042060 Handle Bracket 1 42 1050563 Hex Reducer Nipple 1 43 1055054 Socket Head Cap Screw 4 44 1011086 Quick Connect Plug 1 45 1071086 Plastic Tubing 1 46 1014176 Spring 1 47 1023480* Grabber Blade, 25CL--4 2 1023481** Grabber Blade, 25CL--5 2 48 1010470 Pin 2 49 1054176 Clevis Bolt 1 50 1029364 Spacer 1 51 1007349 Hex Nut 1 52 1054177 Pivot Bolt 1 53 1004368 Washer 2 54 1004251 Split Lock Washer 2 55 1007217 Hex Jam Nut 2 56 1007348 Hex Slotted Nut 1 57 1010347 Cotter Pin 1 58 1010469* Dowel Pin (with item 47*) 2 1008011 Cylinder Assy (incls items 3, 4, 6--11, 35--41 and 43 ) 3035004 Seal Kit (incls items 3, 6, 8--10, 35 and 36)
parts diagram and list page 5 of 16 Model 25CL -- 4, 5, 6 Figure B 25CL -6 ITEM PART NO. PART NAME QTY 1 3020029 Blade Pivot Shaft 1 2 1055246 Button Head Cap Screw 4 3 1007403 Hex Lock Nut 2 4 1055084 Button Head Cap Screw 2 5 1004073 Split Lock Washer 2 6 1042502 Front Support Bracket 1 7 1013088 Collar Assembly 2 8 1020063 Shaft 1 9 1055175 Button Head Cap Screw 1 10 1042097 Rear Bracket 1 11 1028058 Toggle Link 2 12 1020124 Link Bolt 2 13 1029386 Spacer 6 14 1055959 Button Head Cap Screw 3 15 1024252 Coupling Guard 1 16 1024253 Link Guard w/items 23 & 27 2 17 1011153 Rod Coupling 1 18 1016186 Clevis Housing 1 19 1010203 Dowel Pin 1 20 1055168 Socket Head Cap Screw 4 21 1007399 Hex Lock Nut 1 22 1004144 Washer 1 ITEM PART NO. PART NAME QTY 23 1017082 Danger Label 2 24 1023107 Blade 2 25 1032126 Wear Plate 1 26 1014073 Disc Spring 1 27 1055482 Pan Head Screw 8 28 1007018 Hex Jam Nut 1 29 1032070 Seal Retaining Plate 1 30 1035025 U Cup Seal 2 31 1004039 Gland Washer 1 32 1013028 Back Up Ring 1 33 1036064 Seal Retaining Bushing 1 34 1035162 O--ring 1 35 1050056 Swivel Elbow 1 36 1050108 Hex Nipple 1 37 1050602 Reducer Bushing 1 38 1011087 Quick Connect Socket 1 39 1032071 Bushing Retaining Plate 1 40 1035163 O--ring 2 41 1035033 U Cup Seal 2 42 1013037 Back Up Ring 2 43 1020079 Piston Rod 1 44 1016110 Cyl. Housing with item 45 1 45 1017083 Danger Label 1 46 1002051 Cylinder Rear Plate 1 47 1042060 Handle Bracket 1 48 1055054 Socket Head Cap Screw 4 49 1050563 Hex Reducer Nipple 1 50 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)
parts diagram and list Model 25CL -- 4, 5, 6 page 6 of 16 Figure C 25CL -4 25CL -5 25CL -6 Handle Assembly ITEM PART NO. PART NAME QTY 1 1051124 Tube Fitting 1 / 4 inch 2 1051159 Tube Fitting 3 / 8 inch 3 1022098 Manifold (5-port) 1 (includes item 4) 4 1035173 O--ring 1 5 1035029 O--ring 1 6 1035280 O--ring 2 7 1039043 Plunger 1 (includes (2) item 6) 8 1022097 Valve Body 1 (includes items 5 and 19) 9 1014100 Valve Spring 1 10 1006037 Trigger Button 1 11 1019104 Handle 1 12 1024035 Trigger Guard 1 13 1055134 Socket Head Screw 2 14 1012033 Guard Clamp 1 15 1004003 Ext. Tooth Lock Washer 2 16 1055065 Hex Head Screw (2--port) 1 1055046 Hex Head Screw (5--port) 1 1007183 Hex Lock Nut 1 17 1055043 Cup Point Set Screw 2 18 1055492 Cup Point Set Screw 1 19 1050509 Flush Hex Plug 1 20 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 items 1, 2, 4-14, and 17-20) 3019092 Control Handle Assy. (5-port) (includes items 1-14 and 17--19) 1061355 Yellow 1 / 4 by 12 inch Hose 1 1059030 Grey 3 / 8 by 12 inch Hose 1 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.
parts diagram and list page 7 of 16 Figure D Model 25CL -- 4, 5, 6 27 -HTC Hydraulic Power Unit (Vertical) ITEM PART NO. PART NAME QTY ITEM PART NO. PART NAME QTY 1 1008083 Electric Motor, 460V/60HZ 1 13 1011087 Quick Connect Socket 1 2 1034013 Breather Filler Cap Assy 1 14 1025022 Hydraulic Pressure Gage 1 3 1005019 Pressure Switch/Wire Assy 1 15 1050090 Hex Pipe Nipple, 2 in 1 4 1022042 Directional Control Valve 1 16 1050127 Pipe Tee 1 1063072 Coil for.115v Valve 17 1050462 Hex Pipe Nipple, 4 in 1 5 1011052 Strain Relief Connector 1 18 1050126 Pipe Elbow 1 6 1007130 Locking Nut 1 19 1011227 Coupling, Motor Half 1 7 1035678 Seal Ring 1 20 1011229 Coupling, Spider Center 1 8 1022082 Relief Valve Cartridge 1 21 1011228 Coupling, Pump Half 1 9 1032179 Sub Plate 1 22 3008065 Hydraulic Pump 1 10 1025027 Oil Level Gage 1 23 1061278 U--Shape Tubing 1 11 1059003 Hose Assembly 2 24 1034007 Suction Strainer 1 12 1011086 Quick Connect Plug 1 25 3016194 Electric Control Box Assy 1
parts diagram and list Model 25CL -- 4, 5, 6 page 8 of 16 Figure E 27 -HTC Hydraulic Power Unit (Horizontal) 4027120 * not used in current units ITEM PART NO. PART NAME QTY ITEM PART NO. PART NAME QTY 1 1008193 Electric Motor, 460/230V 1 17 1050668 Male Elbow 3 2 1042361 Mounting Bracket 1 18 1034013 Filler Breather Cap Assy 1 3 1034064 Triangular Filter Assy 1 19 1022251 Directional Control Valve 1 1034062 Filter Element only 1063843 din/iso Coil for 115V Valve 1034052* Square Filter Assy 20 1072135 din/iso Connector 2 1034048* Filter Element only 21 1055376 Socket Head Cap Screw 4 4 1061734 Tubing Assy, Return 1 22 3016193 Control Box Assy (see pg 4) 1 5 1011324 Coupling, Motor Half 1 23 1022120 Sub Plate 1 6 1011326 Coupling, Spider Center 1 24 1050462 Hex Pipe Nipple, 4 inch 1 7 1011325 Coupling, Pump Half 1 25 1050090 Hex Pipe Nipple, 2 inch 1 8 1050515 Adapter, Elbow 1 26 1022119 Relief Valve Cartridge 1 9 3008065 Pump, Hydraulic 1 27 1050126 Pipe Elbow 1 10 1005019 Switch and Wire Assy 1 28 1051058 Hex Pipe Nipple 1 11 1050865 Reducer Bushing 1 29 1025045 Oil Level Gage 1 12 1050753 Hex Reducer Bushing 1 30 1059003 Hydraulic Hose Assy, 16 ft 2 13 1050508 Hex Nipple, 1.5 inch 1 31 1034007 Suction Strainer Filter 1 14 1025022 Pressure Gage 1 32 1054166 Drain Plug with Magnet 1 15 1050127 Pipe Tee 2 33 1011086 Quick Connect Plug 1 16 1061733 Supply Tubing Assy 1 34 1011087 Quick Connect Socket 1
parts diagram and list page 9 of 16 Figure F Electric/Pneumatic Control Box Model 25CL -- 4, 5, 6 * * * not used in current units ITEM PART NO. PART NAME QTY 1 1055197 Socket Head Cap Screw 2 2 1004206 Washer 2 3 1007355 Hex Lock Nut 2 4 1051001 Quick Connect Plug 1 5 1051159 Tubing Connector 1 6 1061354 Grey Tubing, 20 ft 1 7 1034014 Air Filter 1 8 1051069 Air Bleed Fitting 2 9 1051063 Street Tee 2 10 1061255 Yellow Tubing, 20 ft 2 11 1004154 Washer 4 12 1051124 Tubing Connector 2 13 1051065 Transducer (Actuator) 2 14 1073072 Plastic Screw 4 15 1029445 Hex Spacer 4 16 1004244 Internal Lock Washer 4 17 1005059 Electric Switch 2 18 1063311* Pigtail Fuse, 115V 1063312* Pigtail Fuse, 230V ITEM PART NO. PART NAME QTY 19 1072071 ATD Circuit Board, 115V 1 1072072 ATD Circuit Board, 230V 20 1072091 Cylindrical Fuse, 115V 1 1063862 Cylindrical Fuse, 230V 21 1063502 Wire Terminal Fork 13 22 1063079 Wire Terminal Ring 2 23 1017012 Electrical Warning Label, 115V 1 1017150 Electrical Warning Label, 230V 24 1017114 Wiring Diagram, 115V 1 1017153 Wiring Diagram, 230V 25 1004211 Sealing Washer 3 26 1011240 Strain Relief Connector 3 27 1001295 Electric Cord, 4 ft 2 28 1007278 Locking Nut 4 29 1032266 Panel 1 30 1016347 Electrical Enclosure 1 3016193 Control Box Complete, 115V 3016212 Control Box Complete, 230V
installation instructions Model 25CL -- 4, 5, 6 page 10 of 16 INSTALLATION INSTRUCTIONS Hydraulic Power Unit for 25CL--4,5,6 (Vertical and Horizontal) Hydraulic Pressure Hose Hydraulic Return Hose (Horizontal) Air Supply Inlet To Directional Control Valve Hydraulic Pressure Hose Hydraulic Return Hose Grey Hose p/n 1061354 (Vertical) Hydraulic Return Hydraulic Pressure Yellow Hose p/n 1061255 25CL--4,5,6 Anti--Tie Down Electric Control Box (Factory Installed on Hydraulic 27--HTC) To 115 Volt Supply
installation instructions page 11 of 16 Model 25CL -- 4, 5, 6 IMPORTANT: ALWAYS 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. 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 from a balancer (4042004 or 4042003). 1.1 The 25CL -4,5,6 should have sufficient travel to allow the operator to reach the entire work area. 2 Install the hydraulic power unit above the operator s station. 3 Fill the oil reservoir with a USDA approved premium grade hydraulic fluid ( viscosity: 200 S.U.S. at 100 F/46ISOat40 C). 4 Make all the necessary air connections. 4.1 The air supply inlet pipe should be 3 / 8 inch diameter minimum. 4.2 The required compressed air supply is 40 psi minimum to 50 psi maximum. 4.3 An air regulator must be installed to the air supply inlet at the quick connect plug (item 4, Figure F). 5 Make all necessary hose connections. Refer to applicable manifold, item 3 or 20, Figure C. 5.1 Attach one end of both yellow hoses (part number 1061255) to the tube fittings (item 1, Figure C) on the 25CL -4,5,6. 5.2 Attach the free ends of the yellow hoses to the fittings (item 12, Figure F) on the anti -tie down electric/pneumatic control box. 5.3 Attach one end of the grey hose (part number 1061354) to the tube fitting (item 2, Figure C) on the 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 wiring must be done in accordance with the national, state and local electrical codes. Anti--Tie Down Electric / Pneumatic Control Box Directional Control Valve 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 switches on the ATD board (item 19, Figure F)] so that the valve on the hydraulic power unit is de -energized after the blades have just fully opened. The older ATD boards have a timer that is a square potentiometer with a screw driver slot. See Figure 1 above.
operation and maintenance instructions Model 25CL -- 4, 5, 6 page 12 of 16 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 through the following checklist: 4.1 Make sure that the compressed air supply is at the proper pressure. 4.2 Make sure that the 25CL -4,5,6 moves freely on the balancer. 4.3 Make sure that the dual anti-tie down control handles (the front and the rear handles) are working correctly. Depress each trigger separately and the blades should not close. Depress one trigger, then pause one second and depress the other trigger and the blades should not close. Repeat this procedure reversing the triggers. Depress both triggers simultaneously (within one half second of each other) and the blades should close. With the blades closed, release one trigger and the blades should open. Continue holding the depressed trigger and then depress the other trigger. The blades should not close. Repeat this procedure holding the other trigger. If the tool malfunctions, remove it from service and report the problem to your supervisor immediately. 5 Making the cut: 5.1 Place 25CL -4,5,6 cutter around the hock, horn or loin of the carcass. 5.2 Depress both triggers simultaneously to close the blades. 5.3 Release either or both triggers to open the blades. IMPORTANT: ALWAYS DISCONNECT ALL HYDRAULIC AND AIR HOSES AND SHUT THE POWER OFF IN ACCORDANCE WITH OSHA S LOCKOUT/TAGOUT PROCEDURES (29 CFR 1910.147) WHEN INSTALLING OR REMOVING A BLADE. 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-tie down control handles (the front and the rear handles). Check for the correct operation of the dual anti-tie down control handles before each shift every day. Depress each trigger separately and the blades should not close. Depress one trigger, then pause one second and depress the other trigger and the blades should not close. Repeat MAINTENANCE INSTRUCTIONS this procedure reversing the triggers. Depress both triggers simultaneously (within one half second of each other) and the blades should close. With the blades closed, release one trigger and the blades should open. Continue holding the depressed trigger and then depress the other trigger. The blades should not close. Repeat this procedure holding the other trigger. If the tool malfunctions, repair or remove it from service immediately. 1.2 At the end of the shift every day, check the level of oil in reservoir gage (item 10, Figure D, page 7 or item 29, Figure E, page 8) and fill if necessary. 2 25CL - 4, 5 BLADE DISASSEMBLY: Refer to Figure A, page 4. 2.1 Remove cotter pin (item 29). 2.2 Remove hex castle nut (item 30).
maintenance instructions page 13 of 16 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 necessary. 2.8 Inspect blades (item 24) for wear and sharpen if necessary. grind here to sharpen grind here to sharpen Model 25CL -- 4, 5, 6 4 25CL - 4, 5 LINK DISASSEMBLY: Refer to Figure A, page 4. 4.1 Remove socket head cap screws (item 33), split lock 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 up with dowel pin (item 18) in rod coupling (item 13). 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 the smaller hole in the clevis housing through the larger hole in the clevis housing. 4.4 Remove toggle links (item 20). 4.5 Remove clevis housing (item 14). P/N 1023016 25CL -- 5 P/N 1023013 25CL -- 4 3 25CL - 6 BLADE DISASSEMBLY: Refer to Figure B, page 5. 3.1 Remove hex lock nuts (item 3) and link bolts (item 12). 3.2 Remove hex lock nut (item 21), washer (item 22) 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 necessary. 3.6 Inspect blades (item 24) for wear and sharpen if necessary. grind here to sharpen P/N 1023107 25CL -- 6 4.6 Inspect the parts for wear and replace them if necessary. 5 25CL - 6 LINK DISASSEMBLY: Refer to Figure B, 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, 6-8 and 10). 5.3 Extend the piston rod (item 43). 5.3.1 The hole in the clevis housing (item 18) must line up with dowel pin (item 19) in rod coupling (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 the smaller hole in the clevis housing through the larger hole in the clevis housing. 5.5 Remove toggle links (item 11).
maintenance instructions Model 25CL -- 4, 5, 6 page 14 of 16 5.6 Remove socket head cap screws (item 20). 5.7 Remove clevis housing (item 18). 6 25CL - 4, 5, 6 CYLINDER DISASSEMBLY: Refer to applicable figures; Figure A, page 4 and Figure B, page 5 as noted. 6.1 Place rod coupling (item 13, Figure A or item 17, Figure B) in vise. 6.2 Tighten hex jam nut (item 12, Figure A or item 28, figure B) up to rod coupling. 7.1 Place new o -ring (item 6, Figure A or item 34, Figure B) on seal retaining bushing (item 7, Figure A or item 33, Figure B). Use Jarvis 1315 White 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 cylinder rear plate (item 40, Figure A or item 46, Figure B). 7.3 Install bushing retaining plate (item 4, Figure A or item 39, Figure B) onto cylinder housing (item 39, Figure A or item 44, Figure B). 6.3 Unscrew piston rod (item 37, Figure A or item 43, Figure B) from rod coupling. 6.3.1 It may be necessary to heat up (300 F maximum) the end of the piston rod and the rod coupling because the two items are bonded together with Loctite. Use heat protective gloves. 6.4 Remove hex jam nut (item 12, Figure A or item 28, Figure B). 6.5 Remove seal retaining plate (item 11, Figure A or item 29, Figure B). 6.6 Remove bushing retaining plate (item 4, Figure A or item 39, Figure B). 6.7 Remove socket head cap screws (item 43, Figure A or item 48, Figure B). 6.8 Remove handle bracket (item 41, Figure A or item 47, Figure B). 6.9 Remove cylinder rear plate (item 40, Figure A or item 46, Figure B). 6.10 Remove piston rod (item 37, Figure A or item 43, Figure B). 6.11 Remove seal retaining bushing (item 7, Figure A, or item 33, Figure B). 6.12 Inspect the parts for wear and replace them if necessary. (See 25CL - 4, 5, 6 cylinder assembly, step 7, for seal replacement instructions). 7 25CL - 4, 5, 6 CYLINDER ASSEMBLY: Refer to applicable figures; Figure A, page 4 and Figure B, page 5 as noted. 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 on U -cup seals (item 35, Figure A or item 41, Figure B) face together. 7.4.2 Use Jarvis 1315 White Grease or hydraulic fluid in the inside of cylinder housing (item 39, Figure A or item 44, Figure B). 7.4.3 The threaded end of piston rod (item 37, Figure A or item 43, Figure B) should be pushed through the seal retaining bushing (item 7, Figure A or item 33, Figure B). 7.4.4 Use a blunt screwdriver to help guide in the sealed end of piston rod (item 37, Figure A or item 43, Figure B). 7.5 Install u -cup seals, back up ring and gland washer (items 8-10, Figure A or items 30-32, Figure B) over piston rod (item 37, Figure A or item 43, Figure B). 7.5.1 Cover the threads of the piston rod with a piece of paper. Spray the paper with silicon. 7.5.2 Roll one u -cup seal (item 8, Figure A or item 30, Figure B) over the piston rod. 7.5.3 Place back up ring (item 9, Figure A or item 32, Figure B) over the piston rod. 7.5.4 Place gland washer (item 10, Figure A or item 31, Figure B) over the piston rod. 7.5.5 Roll remaining u -cup seal (item 8, Figure A or item 30, Figure B) over the piston rod. The u - cup seals must be placed back -to -back.
maintenance instructions page 15 of 16 Model 25CL -- 4, 5, 6 7.6 In one continuous motion, slide seal retaining plate (item 11, Figure A or item 29, Figure B) onto bushing retaining plate (item 4, Figure A or item 39, Figure B). 7.7 Place assembly into vise. Do not over -tighten! 7.7.1 Clamp piston rod (item 37, Figure A or item 43, Figure B) with soft jaws and rest seal retaining plate (item 11, Figure A or item 29, Figure B) on top of the vise. 7.8 Lubricate the inside of cylinder housing (item 39, Figure A or item 44, Figure B) with Jarvis 1315 White Grease. 7.9 Push rear plate (item 40, Figure A or item 46, Figure B) into cylinder housing (item 39, Figure A or item 44, Figure B). 7.10 Place handle bracket (item 41, Figure A or item 47, Figure B) onto cylinder housing (item 39, Figure A or item 44, Figure B) and fasten with socket head cap screws (item 43, Figure A or item 48, Figure B). 7.11 Remove assembly from the vise and temporarily fasten seal retaining plate (item 11, Figure A or item 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 Screw hex jam nut (item 12, Figure A or item 28, Figure B) as far as possible onto the threaded end of piston rod (item 37, Figure A or item 43, Figure B). 7.14 Screw rod coupling (item 13, Figure A or item 17, Figure B) onto the threaded end of piston rod (item 37, Figure A or item 43, Figure B). Seal with Loctite 271. 7.14.1 25CL -4: Adjust rod coupling so that the center hole on the rod coupling is 4 1 / 4 inches from the seal retaining plate (item 11, Figure A). 7.14.2 25CL -5: Adjust rod coupling so that the center hole on the rod coupling is 4 1 / 8 inches from the seal retaining plate (item 11, Figure A). 7.14.3 25CL -6: Screw rod coupling onto the piston as far as it will go. 7.15 Back off hex jam nut (item 12, Figure A or item 28, 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 BLADE AND LINK ASSEMBLY: Refer 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 (item 14). 8.2.1 Place the flat sides of the blades together. 8.2.2 Line up the large holes in clevis housing with the large holes in the blades. 8.3 Push clevis bolt (item 32) through the aligned holes. 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 blades can move, but also so that there is no play in between the blades. 8.6 Install the cotter pin (item 29). 8.7 Place cylinder housing assembly into vise (seal retaining plate, item 11, should be facing up). Do not over -tighten! 8.8 Place the clevis housing assembly onto the seal retaining plate (item 11). 8.9 Fasten clevis housing assembly to the cylinder housing assembly with washers (item 34), split lock washers (item 16) and socket head cap screws (item 33). 8.10 Remove complete assembly from the vise. 8.11 Align the hole in the rod coupling (item 13) with the hole in the clevis housing (item 14). 8.11.1 If all hose couplings are still attached to the 25CL - 4, 5, it will be necessary to relieve the pressure in the cylinder housing (item 39) through quick connect plug (item 44).
maintenance instructions Model 25CL -- 4, 5, 6 page 16 of 16 8.12 Place toggle links (item 20) into the clevis housing (item 14). 8.12.1 Place the flat side of each toggle link together. 8.12.2 Align the small holes in clevis housing with the 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 hex lock 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 hex lock nut. 8.14.3 Back off the hex lock nuts so that the blades can move, but also so that there is no play between the blades. 9 25CL - 6 BLADE AND LINK ASSEMBLY: Refer to 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 (item 18). 9.2.1 Place the flat sides of the blades together. 9.2.2 Align the large holes in clevis housing with the large holes in the blades. 9.3 Place disc spring (item 26) into wear plate (item 25). 9.4 Slide wear plate (item 25) into clevis housing (item 18). 9.4.1 Place the wear plate on top of the blades and align the holes. The flat side of the wear plate contacts the blade. 9.5 Push blade pivot shaft (item 1) through the aligned holes. 9.5.1 Be sure that the roll pin in the blade pivot shaft is 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 can move, but also so that there is no play between the blades. 9.7 Place cylinder housing assembly into vise (seal retaining plate, item 29, should be facing up). Do not over -tighten! 9.8 Place the clevis housing assembly onto the seal retaining plate (item 29). 9.9 Fasten clevis housing assembly to the cylinder housing 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 the 25CL - 6, it will be necessary to relieve the pressure in the cylinder housing (item 44) with quick connect plug (item 50). 9.12 Place toggle links (item 11) into the clevis housing (item 18). 9.12.1 Align the small holes in clevis housing with the 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 hex lock 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 fasten with hex lock nut. 9.14.3 Back off the hex lock nuts so that the blades can move, but also so that there is no play between 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).