Repair
Repair
Displacement Pump Service
Refer to FIG. 3 for the following instructions.
Be sure you have all necessary parts on hand before starting. Use all parts in the repair kit for best results.
Displacement Pump Repair Kit 241623 is available.
1.Flush the pump.
2.Relieve the pressure before proceeding, page 5.
3.Disconnect the hoses, remove the pump from its mounting, and clamp the air motor base (5) in a vise.
NOTICE
To avoid damaging the shovel tube, do not use slots in the tube to tighten or loosen tube.
4.Use strap wrench to screw shovel tube (67) off of pump cylinder (59).
5.Use strap wrench to screw shovel (66) off of shovel rod (58).
6.se strap wrench on pump cylinder (59) to screw it out of extension tube (64). Screw tube connector (63) out of pump cylinder. Remove bearing (61) and seal (62).
7.Screw the shovel rod (58) out of the piston (52). Remove the lower ball (56). Screw the piston out of the extension rod (57). Remove the upper ball (56), retaining washer (53), and seal (54).
8.Clean all the parts in a compatible solvent and inspect them for wear or damage. Use all the parts in the repair kit, and replace other parts as neces- sary.
9.Generously lubricate all the parts with light
NOTE: Torque the shovel tube (67) to the pump cylinder (59) at 45 to 55
Torque the pump cylinder (59) to the extension tube (64) at 45 to 55
Torque the shovel rod (58) to the piston (52) at 25 to 30
Torque the piston (52) to the extension rod (57) at 25 to 30
10.If the ground wire was disconnected before servic- ing, be sure to reconnect it before you operate the pump.
6 | 308883S |
