Graco Lube Pro 24Z020 Instructions Manual page 18

Repair
21. Remove the cover (1), the cover o-ring (2) and the
spring (6). Dispose of the o-ring according to all
regulations for proper disposal (F
1
2
F . 22
IG
Piston Rod O-Ring (36) and Piston Seal (4)
22. Remove the piston rod (34), the piston (5), and the
spring (6) from the air motor cylinder (3) (see F
21, page 17).
23. Separate the piston rod (34) and the piston (5) using
two wrenches, working in opposite directions.
Secure one wrench to flats of piston rod and the
second wrench to loosen the nut (37) (F
37
5
F . 23
IG
24. Remove the o-ring (4) from the piston (5) (F
18
. 22).
IG
3
IG
. 23).
IG
34
. 24).
IG
4
F . 24
IG
25. Dispose of the piston seal (4), the o-ring (34a) and
the nut (37) according to all regulations for proper
disposal.
.
26. Use a pick to remove the o-ring (34a) from the pis-
ton rod (34) (F
F . 25
IG
. 25).
IG
5
34a
34
3A4033J