Chevrolet 1988 Light Duty Truck Repair Manual page 134

3B3-20 POWER STEERING
Drive Shaft
50.
Seal
51.
O-Ring Seal
52.
H ousing
53.
O-Ring Seal
54.
Pin
55.
T hru st Plate
56.
57. F ille r Cap
Flow C ontrol Valve
58.
Flow C ontrol Spring
59.
O-Ring Seal
60.
Pump R otor
61.
Shaft R etainer
62.
Ring
63.
V ane
Pump Ring
64.
65. Pressure Plate
66. Pressure Plate
Spring
H ousing End Plate
67.
End Plate R etaining Ring
68
.
Reservoir Seal
69.
R eservoir A sse m b ly
70.
4. Control valve (58). It must move smoothly in the
valve bore.
ASSEMBLY
Install or C on n ect (F ig u re 47)
S
Tool Required:
J-7728 Seal Installer
Im po rtant
• Lu brica te the O -rin g s (54), pum p ring (64), rotor
(61) and vanes (63) w ith pow er stee ring fluid.
1. Dowel pins (55) and O -rings (54).
2. Seal (51) using J-7728.
• O-ring (52).
SAGINAW POWER STEERING PUMP—MODEL CB
NOTICE: R e pa ir the p u m p o n ly in a clean, d u s t-
free lo c a tio n , u sin g c le a n to o ls a nd e q u ip m e n t.
D irt o r g rit w ill dam age the m a ch in e d surfaces
a n d re s u lt in leakage o r dam age to th e p u m p .
If broken com ponents or foreign materials are found
during disassem bly of the pump, the hydraulic system
53
5 0
g 2
61 . 1
' \ \ L
\ \ chp
|
| ^
!
71. Bolt
72. Seal
73. F ittin g
Figure 4 7 — Power Steering Pump — Model P
Driveshaft (50 and thrust plate (56).
• Rotor (61). Make sure the counterbore faces
the driveshaft end of the housing.
• Vanes (63), the rounded edge faces away from
the rotor.
• Shaft retaining ring (62), pump ring (64) and
pressure plate (65).
O-ring (60), control valve spring (59) and control
valve (58).
Pressure plate spring (66) and end plate (67).
• End plate retaining ring (68).
Seal (69) and reservoir (70).
Bolt (71) and fitting (73).
should be disassem bled, inspected, cleaned and flushed
before servicing is complete.
Before beginning disassem bly of the pump, remove the
reservoir filler cap (when used) and drain the oil from the
reservoir by filler cap (when used). Drain the oil from the
reservoir by inverting the pum p so oil may drain out the
F-02161