GMC T Series 1994 Repair Manual page 296

\ o 27
28
B. C-CLAMP
Figure 2— Removing the Accumulator
23. Return line fitting (12) and seal (10).
lQg
Clean
• All parts with power steering fluid.
• Spool valve and spool valve bore for corrosion,
nicks, and scoring.
— Discoloration of the spool or bore is not harmful
and is no cause for replacement.
6. O-Ring
j
7. Spring
\
8. Housing
24
9. Bolt
10. Seal
1. Retainer 11. Accumulator Valve
2. Accum ulator 12. Return Line F itting
3. O-Ring 13. Spool Valve
4. Retainer
14. Seal
5. Plug 15. Seal
Figure 1— Hydraulic Booster Components
F0762
16. Cover
17. Bracket
18. Nut
19. Boot
20. Pedal Rod
21. Pin
22. Piston Assembly
23. Seal
24. Retainer
25. Piston Return Spring
26. Retainer
27. Baffle
28. O utput Pushrod
5. Plug
6. O-Ring
7. Spring
Figure 3— Removing the Plug and Spring
• Housing and cover sealing surface for corrosion or
nicks.
• Tube seat in the housing for burrs, nicks, or corro­
sion. Replace if needed (figures 5 and 6).
• If damage to the booster is found, replace the com­
plete booster.
-►+
Install or Connect (Figures 1, 6, 7, and 8)
NOTICE: For steps 9 and 10, refer to "Notice"
on page 5D2-1.
F0761
F0763