Graco LubePro A4000 Instructions Manual page 17

Grease or oil reciprocating pump
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16. Push seal retainer (9❖) into pump base (2).
17. Partially install pump cylinder (11❖) in pump base
(2).
18. Lubricate o-ring (6‡❖) and install it around the
shovel seal retainer (10❖) (F
‡❖
6
10
F
. 23
IG
19. Press pump cylinder assembly into pump base (2).
20. Lubricate u-cup (4‡❖) and install it in the pump cyl-
inder (11).
NOTE: The lips of the u-cup seal (4‡❖) should be
facing in; toward the piston rod (19❖).
21. Install nut (14) in pump base (2). Torque to 100 to
105 ft.-lbs (135.6 to 142.4 N•m) (F
22. Lubricate o-ring (8‡❖). Install o-ring and pump end
nut (15) in pump base (F
45 to 50 ft.-lbs (61.01 to 67.79 N•m).
14
2
F
. 24
IG
23. If the air motor does not require maintenance or
repair, install air motor. See Air Motor Installation
instructions, page 27.
3A5266G
. 23).
IG
. 24).
IG
. 24). Torque end nut to
IG
‡❖
8
15
Repair
17

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