Graco 233627, Instructions-Parts List Manual

Page: 13 / 40

Bearing Housing and Connecting Rod
309414N 13
Bearing Housing and Connecting Rod
Removal
1. Relieve pressure; page 7.
2. Fig. 2. Remove screws (27) and front cover (92).
3. Unscrew suction tube (12) from pump, hold wrench
on pump intake valve (A) to keep pump from loos-
ening.
4. Disconnect pump outlet hose (61) from dis-
place¬ment pump outlet nipple (6).
5. Fig. 1. Use screwdriver to push up retaining spring
(95) at top of pump. Push out pin (96).
F
IG
. 1
6. Fig. 2. Loosen retaining nut (97). Unscrew and
remove displacement pump (119).
7. Remove four screws (26) and lockwashers (25)
from bearing housing (94).
8. Pull connecting rod (83) and lightly tap lower rear of
bearing housing (94) with plastic mallet to loosen
from drive housing (101). Pull bearing housing and
connecting rod assembly (83) off drive housing.
9. Inspect crank (B) for excessive wear and replace
parts as needed.
Installation
1. Evenly lubricate inside of bronze bearing (C) in
bearing housing (94) with high-quality motor oil. Lib-
erally pack top roller bearing (E), lower bearing (D)
inside connecting rod assembly (83) with bearing
grease.
2. Assemble connecting rod (83) and bearing housing
(94).
3. Clean mating surfaces of bearing and drive hous-
ings.
4. Align connecting rod with crank (B) and carefully
align locating pins (F) in drive housing (101) with
holes in bearing housing (94). Push bearing
hous¬ing onto drive housing or tap into place with
plastic mallet.
5. Install screws (26) and lockwashers (25) on
bear¬ing housing. Torque evenly to note 3 value in
Fig. 2.
6. Refer to Displacement Pump, Installation, page 21.
Model 233701 shown
F
IG
. 2
%
96 95
NOTICE
DO NOT use bearing housing screws (26) to align
or seat bearing housing with drive housing. Align
these parts with locating pins (F), to avoid
prema¬ture bearing wear.
Oil
Pack with bearing grease 114819
LineLazer III 3900: Torque to 200 in-lb (22.6 N m)
LineLazer III 5900: Torque to 25 ft-lb (34 N m)
WLD
B
E
D
92
27
25, 26
F
101
83
94
95
96
97
C
61
6
119
A
12
12g
2
2
3
1
1
2
3
96 96