GMC 1990 Light Truck Repair Manual page 339

Figure 4—Removing the Accumulator Valve Figure 7—Installing the Piston Assembly
Tighten
• Bolts to 30 N m (22 ft. lbs.).
9. Bracket (17) and nut (18).
Tighten
a
• Nut to 149 N m (110 ft. lbs.).
10. Boot (19).
11. Output pushrod (28), baffle (27), piston return spring
(25) and retainer (24) by using J 24551-A or J 25083
(figure 8).
12. Retainer (26).
13. Spring (7), O-ring (6) and plug (5) (figure 3).
14. Retainer (4).
15. O-ring (3) and accumulator (2) by using J 26889 and
a C-clamp (figure 2).
• Depress the accumulator (2).
16. Retainer (1).
• Release the C-clamp.
• Remove J 26889.
17. Jam nut from the repair kit onto the pedal rod.
18. Eyelet onto the pedal rod.
A djust
E yelet to the re q u ire d length . R efer to
HYDRAULIC BRAKES (SEC. 5A) in the 1989
Light Duty Truck Service Manual.
8. Housing
25. Piston Return Spring
26. Retainer
Figure 8—Installing the Output Rod Retainer
BRAKES 5-3
J-24551 (JB8, JF9)
j . 25083 (JD3, JD5)
F-00767