Repair
8
3A6845A
9.
If the piston ball stop pin (110) was removed, slide
the piston ball stop pin (110) into the shorter set of
holes (L) in the piston (128).
10. Secure the ball stop pin (110) with the cotter pins
(101).
11. Install the piston ball (102) into the piston (128).
12. Screw the piston seat (114) onto the piston (128).
Torque the piston seat to 50-70 ft-lb (68-95 N•m).
13. If the piston (128) was removed from the
displacement rod (107), reassemble them back
together. Hold the flats of the displacement rod
(107) in a vise. Screw the piston assembly onto the
displacement rod. Torque the piston assembly to
50-70 ft-lb (68-95 N•m).
14. Insert the displacement rod (107) into the bottom of
the cylinder (111).
15. Push the displacement rod (107) straight up until it
protrudes from the enclosed wet cup (115).
16. Install the ball (102), guide (122), o-ring (112), and
ball stop pin (105) into the intake seat (113).
17. Place the intake seat assembly in the locking ring
(117).
18. Apply thread lubricant to the locking ring (117) and
cylinder (111) threads.
19. Screw the locking ring (117) onto the cylinder (111).
20. Reconnect the displacement pump to the air motor.
Refer to your pump manual.
F
IG
. 3
L
H
WLD
NOTICE
Do not scratch the rod or the inside of the cylinder.
Scratches on the rod or the inside of the cylinder will
damage seals and require frequent seal replacement.
