Graco 256200 Pump Lower Disassembly, Unscrew the piston cylinder 58 from the pump frame

3.Reinstall the spring (7) and gasket (27) on the cylinder cap (34) and screw the cap onto the cylinder (8). Screw the cylinder into the air motor base (13). See FIG. 10.

Pump Lower Disassembly

In mid-2013 the fluid section was upgraded to prevent threaded joints from loosening due to vibrations. Wrench flats were also added to improve serviceability.

Series A and B pumps can be upgraded with repair kit 24R989.

1.Unscrew the air motor connecting ring (15). Lay the pump on its side and rotate until the ball on the pump connecting rod (37) releases from the socket in the motor pis- ton rod (35). Separate the motor from the displacement pump.

15

Repair

2.Unscrew the intake valve housing (29) from the piston cylinder (58). Disassemble intake valve.

28 5

58

TI17179b

29

FIG. 15

3.Unscrew the piston cylinder (58) from the pump frame (36).

★ 37

TI17178b

★Support the Series A and B pump frame with a strap wrench. Series C pumps have wrench flats.

FIG. 14

To repair the air motor, see Air Motor Disassembly on page 15.

312766N 17