Chevrolet 10 Series 1970 Service Manual page 286

BRAKES 5-48
STOPMASTER STANDARD
F ig . 8 3 —Stopm aster Brake Assem bly
eration. The tip of the plunger guide and the
en tire plunger should also be coated. See LU ­
B R IC A T IO N (SEC. 0) fo r type of lubricant to be
used.
1. In stall new s e a l on adjusting plunger and actuator.
2. In stall adjusting plunger
housing.
3. Tap plunger sea l into place in spider housing. See
figu re 92.
4. S crew adjusting bolt into actuator to the fu ll length
of threads, then back off 1/4 turn so that sc re w w ill
not jam and fa il to adjust when assem bly is com ­
plete. See F igu re 86.
5. Install plunger guide in sp id er housing.
the guide with teeth is in stalled fir s t and the fla t
sides o f the guide must fit into the slot in the ad­
justing plunger to m esh with the outer teeth of the
actuator.
C AUTIO N: The ch am fered notch on the back
end of the guide must be tow ard the plunger seal
end of the housing, otherw ise the automatic ad-
F ig . 8 4 —A u to m a tic A d ju s te r C om ponents
and actuator in spidei
The end of
F ig . 8 5 —A u to m a tic A d ju s te r Assembled
1. Brake A ir C ham ber Assembly
2. N on-P ressure H a lf
3. Brake Shoe Assem bly
4. A d ju s tin g B olt Assembly
5. Id e n tific a tio n Ring
6. Spanner N u t
7. P lunger Seal and R etainer
8. A d ju s tin g Pawl (P lung er G u id e )
9. H o llo w Cap Screw
10. G aske t
11. S pring
12. A d ju s tin g S leeve (A c tu a to r)
13. A d ju s tin g P lunger
14. W edae S prinq R etainer
15. R o lle r
justment featu re w ill not function. When prop­
e r ly assem bled, if adjusting bolt is turned in
one direction , the brake w ill adjust and if turned
in opposite d riection
result. When assem bled
effect w ill resu lt rega rd less of which direction
adjusting bolt is turned.
6. Install spring, gasket and bolt.
F ig . 8 6 —In s ta llin g A d ju s te r Bolt
16. P lunger Housing
17. A n c h o r P lunger (S o lid )
18. G u id e Screw
19. G aske t
20. Plunger Seal and R etainer
21. R o lle r R e ta in in g Cage
22. W edge S pring
23. C o tte r K ey
24. W asher
25. W edge S haft
26. W edge G u id e
27. D iaphragm P late (Push Rod)
28. Rubber Boot
29. Pressure H a lf
a ratcheting effe c t w ill
wrong, a ratcheting
CHEVROLET TRUCK SERVICE MANUAL