Chevrolet 1988 Light Duty Truck Repair Manual page 137

THIS SIDE FACE UP
DOWEL PIN
HOLE
(LARGE)
COUNTERBORE
FACING DRIVE
SHAFT END OF
1 1-RING, PUMP
HOUSING
13-ROTOR, PUMP
Figure 55— Rotor or Pump Ring Installation
ASSEMBLY
-► 4- Install or C on n ect (F ig u res 48 and 54 th ro u gh
57)
Tool Required:
J 7728 Seal Installation Tool
• Lubricate the new drive shaft seal (3) with power
steering fluid.
1. Drive shaft seal (3) into the pump housing (2) with
tool J 7728.
2. Pump ring dowel pins (9) into the housing (2).
3. Thrust plate (10), the pum p rotor (13) to the drive
shaft (8).
4. New shaft retaining ring (14) onto the drive shaft (8).
Figure 56— Retaining Ring Installation (Shaft)
DOWEL PIN
HOLE
(LARGE)
SMALL
HOLES
F-04821
14
8-SHAFT, DRIVE
10-PLATE, THRUST
13-ROTOR, PUMP
14-RING, SHAFT RETAINING
F-04822
POWER STEERING 3B3-23
5. Drive shaft sub assem bly into the housing (2).
6. Vanes (12) into the pump rotor (13).
7. Pump ring (11) with holes positioned correctly onto
the dowel pins (9) in the housing (2).
• Lubricate new O-ring (16) with power steering fluid.
8. O-ring (16) into the groove in the housing (2).
9. Pressure plate (15).
10. Pressure plate spring (17).
• Lubricate new O-ring (18) with power steering fluid.
11. O-ring (18) into the end cover (19).
• Lubricate the outer edge of the end cover (19) with
power steering fluid.
• Press the end cover into the housing (2).
12. Retaining ring (20) into the groove in the housing (2)
with the ring opening near the access hole in the
housing.