Graco 3A1495C manual

Repair Instructions LD Grease Pump Repair Kits 3A1495C Instructions for repairing the LD Grease Pump. Maximum Fluid Press ure - 7500 psi (51. 7 MPa, 517 bar) Maximum Air Pressur e - 150 psi (1. 03 MPa, 10.3 bar) Repair Kits: 24H854: Throat and Piston Seal Replacement Kit 24H856: O-Ring and S eal Replacement Kit 24U984: Air Piston Replacement Kit Im[...]

Warnings 2 3A1495C Warnings The following warnings are fo r the setup, use, grounding, mainte nance, and repair of th is equipment. The exclama- tion point symbol alerts you to a genera l warning and the ha zard symbols refer to procedure-specific r isks. When these symbols appear in the body of this manual, refe r ba ck to these Warnings. Product-[...]

Instructions 3A1495C 3 Instructions Always use all new parts included in your kit an d dis- pose of replaced parts according to all state and local regulations for disposal of discarded components. Inspect all parts when disassem bling the pump. Replace any and all worn an d damaged pa rts. Pressure Relief Procedure 1. Close the pump’s bleed-type[...]

Instructions 4 3A1495C 4. Secure a strap wrench around the shovel cylinde r (27). Use the strap wrench to turn the shovel cylin- der counte r-clockwise to loosen and r emove it fro m the pump assem bly (Fig. 2). NOTE: After a few turns, the shovel c ylinder should be loose enough to finish turning it with yo ur hand to remove this pa rt. 5. Use an [...]

Instructions 3A1495C 5 8. If the gasket (30) is still inside the spacer cylinder (36) use a pick to remove. 9. Secure a strap wrench around the spacer cylinder (36) and use it to turn the cylinder cou nter clockwise to loosen and remove it from the fla nge (22) (Fig. 6). NOTE: After a few turns, the spacer cylinder should be loose en ough to finish[...]

Instructions 6 3A1495C force to hold the pump in position. The pump cylin- der is aluminum and could be dama ged by using excessive clamping force. 16. Using a 10 mm socke t wr ench, remove the 4 screws (43) from the air valve (40) and complete ly remove air valve assembly from air cyl inder (21). Also remove the two cover gaskets 18 ). If you are [...]

Instructions 3A1495C 7 Pump Reassembly NOTE: The following instructions d escribe the proce- dure to follow to reassemble a complet ely disassemb led LD grease pump. Depending on the rep air/maintenance procedure you are perfor ming on the pump, it may not be entirely disassembled . Se e the specific section(s) related to your repair/r eplacement k[...]

Instructions 8 3A1495C 6. Install the 5 screws (4) wrench tight only. NOTE: If installing a new ai r cylinder (27), the mat- ing holes are not th readed by desig n. Use thread forming scre ws (4) to f orm thread s as they ar e being installed. Torque to 95-105 in.-lbs (10.7 - 11.8 N.m) to ensure full thread formation. 7. To ensure there is a prop e[...]

Instructions 3A1495C 9 17. Screw the piston rod (23) an d the connecting rod (32) togeth er aligning the pin hole in both pieces to allow the pin to be pushed through (Fig. 19 ). 18. Replace the pin (8 ). Use a rubber hamm er to tap the pin into plac e, being ca refu l to make sure the sides of the pin a re flush with t he outside surface of the co[...]

Instructions 10 3A1495C intake seal on the priming rod as sh own in Fig. 20. 26. Install seal retainer (29) over p riming rod (34) (Fig. 22). 27. Use an adjustable wr ench to tighten seal retaine r securely, then tor que to 45 - 55 ft lbs (61 - 75 N.m). 28. Install the priming pisto n (35 and nut (19) (Fig. 3, Fig. 4) on priming rod (3 4) Use an ad[...]

Instructions 3A1495C 11 Throat and Piston Seal Replacement Kit - 24H854 ( Fig. 25 ) Replacement parts for o-ring ( 5) installed on air piston (15), o-rings (6 and 12) installed in bottom cover ( 14), o-ring (7), u-cup seal (11) and gasket (30) installed on flange (22), pin (8) used to reassemble r od sections, and gasket (18) used later in r eassem[...]

Instructions 12 3A1495C 4. Remove nut retainer (37) from flange (22) (Fig. 28). 5. Remove u-cup seal (1 1) from flange (22) (Fig. 29 ). Grease and replace th e u-cup seal with the new p art included in the ki t and install them in the order shown in Fig. 29. NOTE: • The bearing (31) is no t included in the kit. This part is reused. The bearing ca[...]

Instructions 3A1495C 13 1. Disassemble the pump following Disassembly Steps 1-14 (pages 3-5) only. 2. Use a pick to remove the gasket (30) installed between the flange (22) and tu be (36) (Fig. 32). Grease the new gasket included in the kit and install it inside the flange. 3. Use a pick to rem ove the othe r gasket (30) installed between the cylin[...]

Instructions 14 3A1495C 3. Pull spac er cylinder ( 36) away f rom pump to access pin (8) (Fig. 36). 4. Use a rubber hammer an d small punch to drive the pin (8) out. 5. Unscrew the pump low er from di splacement rod (25). Set aside pump lower for reasse mbly. 6. Use a pick to remove gasket (30) from inside the flange (22). 7. Continue pump disass e[...]

Instructions 3A1495C 15 Fig. 38. 4. Remove pilot valve (20) from the old air cylinde r (21). Apply a light coat of grease to o-rings. 5. Install pilot valve (20) in to new air cylinder included in the kit (Fig. 39). To rq ue to 95-1 05 in. lbs (10.7-11.9 N.m). 6. Apply a thin co at of grease to o-rings (5) and o-ring on bottom co ver (14). I nstall[...]

All written and visual data contained in this document reflects the latest product info r mation available at the time of publica tion. Graco reserves the right to make changes a t any time without notice. For patent information, see www.graco.com/patents. Original instructions. This m anual contains English . MM3A1495 Graco Headquarters: Minne apo[...]