Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 51 / 468

STEERING 3B-9
Fig. 3 B - 2 0 -- lm p e ll e r U n it Removal Fig. 3 B - 2 2 -- ln s t a llin g Seal Usin g Too l J - 2 2 6 7 0
2. Install both dowel pins in the pump housing and
install a new pressure plate "O" ring lubricated with Power
Steering Fluid.
CAUTION: Do not use a "C" ring to replace the
full diameter ring. Be sure the retaining ring is
firm ly seated in the shaft groove before proceeding.
3. Install the thrust plate on the shaft with the ported
face towards the splined end of the shaft (fig. 3B-23).
4. Install the rotor, which m ust be free on the shaft
splines, with the countersunk side towards the thrust plate.
5. Install a new shaft retaining ring by placing the ring
on the end of the shaft and using first a drift and then a 3/8"
socket to tap the N EW ring into place (fig. 3B-24).
6. Place pum p housing in a vise and install shaft, thrust
plate and rotor assembly into housing, aligning the holes in
the thrust plate with the dowel pins as shown in Figure 3B-25.
7. Install the pum p ring onto the dowel pins with the
direction of rotation arrow to the rear of the housing (fig.
3B-26). R otation is clockwise as viewed from the pulley end
of the shaft.
8. Install the vanes into the rotor slots with the radius
edge towards the pum p ring and the square edge towards the
1. Shaft
2. W oodruff Key
3 . Shaft Seal
4 . Pump Housing
5 . Thrust Plate
6 . Vanes
7 . Pump Ring
8 . Reservoir " O " Ring Seal
9. Pressure Plate " O " Ring
10. Pressure Plate
11. End Plate
12. End Plate Retaining Ring
13. Pressure Plate Spring
14. Pump In le t Tube
15. R o to r-to -D riv e Shaft
Retaining Ring
16. Pump O u tle t Union
17. Reservoir
18. Flow C ontrol V a lv e
19. Flow C ontrol V a lv e
Spring
2 0 . Rotor
Fig. 3B-21--Power Steering P um p-Typical
Fig. 3B -23--lnstalling Thrust Plate