Chevrolet Chevelle 1977 Repair Manual page 186

5-20
the other lances (fig. 5-3D). The metal that forms the four
deep lances must be partially straightened so that the lances
will clear the cutouts in the front housing. If the metal tabs
that form the deep lances crack or break during straightening,
the housing must be replaced.
1. Master C ylinder
2. Vacuum Check Valve
3. G rom m et
4. Diaphragm
5. Diaphragm Plate
6. Rear Housing
7. Diaphragm Spring
8. Reaction Disc
OVERHAUL MANUAL
housing and attach with nuts and washers. Draw nuts down
tight to eliminate bending or damaging of studs (fig. 5-2A).
rear housing clockwise to separate the two housings. If the
9. A ir Valve
10. F ro n t Housing Seal
11. Poppet Valve
12. Poppet Valve Spring
13. Poppet Retainer
14. Dust Boot
15. Valve Push Rod
16. F ilte r and Silencers
Fig. 5-1D--Bendix Single Diaphragm Unit (Typical)
8. Place Spanner W rench J-9504 over studs on rear
9. Press down on Spanner W rench J-9504 and rotate the
17. Valve Return Spring
18. M ou n tin g Stud
19. A ir Valve Lock Plate
20. Diaphragm L ip
21. F ro n t Housing
22. F ro n t Housing Seal
23. Piston Rod