Displacement Pump Replacement
14
312361D
Installation
1.
Extend pump piston rod full. Apply grease to top of
pump rod at (F) or inside connecting rod (30). Install
jam nut (34) on pump threads.
2.
Install pump rod (F) into connecting rod (30).
3.
Install pump pin (31). Verify retainer spring (E) is in
groove over pump pin.
4.
Push pump (33) up until pump threads engage.
5.
Screw in pump until threads are flush with top of
drive housing opening.
6.
Align pump outlet (G) to back.
7.
Screw jam nut (34) up onto pump until nut stops.
Tighten jam nut by hand, then tap 1/8 to 1/4 turn
with a 20 oz (maximum) hammer to approximately
75 ft-lb (102 N•m) torque.
8.
Install high pressure hose (D) and tighten nut (C) to
approximately 35 ft-lb (47 N•m) torque. Install suc-
tion tube (B) and hand-tighten nut (A).
.
9.
Fill packing nut with ASM Packing Seal
®
until fluid
flows onto top of seal.
10. Stand Models - Rotate cover (10) and tighten
screws (11).
Hi-Boy Models - Install pail hook (10) with screws
(11).
If pump pin works loose, parts could break off due to
force of pumping action. Parts could project through
air and result in serious injury or property damage.
CAUTION
If the pump jam nut loosens during operation, the
threads of the drive housing will be damaged.
30
F
34
ti10485a
E
ti9144a
31
ti6111a
G
ti10455a
34
D
C
A
B
ti10455a
ti5735b
10
11
10
11
Stand
Hi-Boy
ti10501a
ti10502a
