Drive Shaft, Drive Shaft Seal, Ball Bearing Assembly - GMC C Series 1993 Repair Manual

Key No. Part Name
1 - SHAFT, DRIVE
2 - KEY, WOODRUFF
3 - RING, RETAINING (INTERNAL)
4 - BEARING ASM., BALL
5 - RING, RETAINING (EXTERNAL)
6 - SEAL, DRIVE SHAFT
7 - BEARING ASM., NEEDLE
8 - SEAL, O-RING (HOUSING)
9 - HOUSING ASM., PUMP
10 - SEAL, O-RING (HOUSING)
11 - SPRING, FLOW CONTROL
12 - VALVE ASM., CONTROL
13 - SEAL, O-RING (PRESSURE & END PLATE)
14- PIN, DOWEL
15- PLATE, THRUST
DRIVE SHAFT, DRIVE SHAFT SEAL,
BALL BEARING ASSEMBLY
Figures 1 thru 3
Tools Required:
J 7728 Seal Installer
!< ■ ■ » [ Remove or Disconnect
1. Pump assembly from vehicle.
• Reservoir cap assembly (25) from reservoir
assembly (2 3 )..
• Drain oil from reservoir (23).
2. Retaining ring (internal) (3), drive shaft (1),
woodruff key (2), and ball bearing assembly (4), and
retaining ring (external) (5) as an assembly from
pump housing assembly (9).
• Ring (external) (5), bearing (4), and key (2)
from shaft (1).
3. Drive shaft seal (6) using screwdriver to pry from
housing (9).
Clean
All parts in power steering fluid.
Dry parts.
Inspect
L *
• Drive shaft (1) and splines for scoring,
pitting, or chatter marks.
• If noted, replace appropriate parts.
MEDIUM DUTY TRUCK STEERING PUMP UNIT REPAIR 3B1B-3
Figure 2 Power Steering Pump Assembly - Legend
Key No. Part Name
16- ROTOR, PUMP
1 7 - VANE, PUMP (10) •
18- RING, PUMP
19 - PLATE, PRESSURE
20 - SPRING, PRESSURE PLATE
21 - PLATE, END
22 - RING, END PLATE RETAINING
23 - RESERVOIR ASM., PUMP
24 - SEAL, O-RING (HOUSING TO STUD)
25 - CAP ASM., RESERVOIR
26 - STUD OR BOLT
27 - SEAL, O-RING (FITTING ASM)
28 - FITTING ASM., CONNECTOR
29 - MAGNET
30 - RESERVOIR ASM., PUMP (OPTIONAL)
Install or Connect
1. Lubricate seal (6) with power steering fluid.
• Seal (6) into pump housing assembly (9)
using J 7728.
2. Key (2), bearing (4), and ring (external) (5) to
shaft (1).
• Shaft (1) and ring (internal) (3) to housing (9).
3. Pump assembly to vehicle.
• Fill reservoir (23) with power steering fluid
GM part number 1050017 (or equivalent
power steering fluid meeting GM Spec
9985010).
• Bleed air from system, check fluid level.
• Reservoir cap (25) to reservoir (23).
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