Saginaw (1C Series) Power Steering Pump; Power Steering (Tc Series) Pump Components - Chevrolet 1991 Light Duty Truck Repair Manual

Tighten
• Nut (227) to 27 N-m (20 ft.lbs.).
. Re-check the preload after tightening the nut
6
(227).

SAGINAW (1C SERIES) POWER STEERING PUMP

NOTICE: Repair the pump only in a clean,
dust-free location, using clean tools and
equipm ent. D irt or g r it w ill damage the
machined surfaces and result in leakage or
damage to the pump.
If broken components or foreign materials are found
during disassembly of the pump, the hydraulic system
should be disassembled, inspected, cleaned and
flushed before servicing is complete.
A. Used On Some Models
Housing
1
.
2 Sleeve
.
3. Dowel Pin
4. O-Ring Seal
5. Pressure Plate Spring
6 . O-Ring Seal
7. Pressure Plate
Dowel Pin
8
.
9.
Vane
.
10 Rotor
Pump Ring
11 .
O-Ring Seal
12
.
13. Thrust Plate
14.
Thrust Plate
Retaining Ring
15. Return Tube
16. Drive Shaft Seal
Drive Shaft
17.
18. Bearing
19. Retaining Ring
Flow Control Spring
20
.
Control Valve
21
.
O-Ring Seal
22
.
23. Fitting
24. Reservoir
25. O-Ring Seal
26.
Clips
27.
Capstick
Figure 24— Power Steering (TC SERIES) Pump Components
POWER STEERIN G
Before beginning disassembly 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 pump so oil may
drain out the filler hole. After the oil is drained from the
reservoir, replace the cap.
3B3-9
F1875