Chevrolet 1977 10 Series, Repair Manual, Page: 186 / 468

5-20
OVERHAUL MANUAL
the other lances (fig. 5-3D). The metal that forms the four
deep lances m ust 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 m ust be replaced.
8. Place Spanner W rench J-9504 over studs on rear
housing and attach with nuts and washers. D raw nuts down
tight to eliminate bending or damaging of studs (fig. 5-2A).
9. Press down on Spanner W rench J-9504 and rotate the
rear housing clockwise to separate the two housings. If the
1. Master C y lin d e r
2. Vacuum Check Valve
3. G rom m et
4. Diaphragm
5. Diaphragm Plate
6. Rear Housing
7. Diaphragm Spring
8. Reaction Disc
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
17. Valve R eturn Spring
18. M o u n tin g Stud
19. A ir V alve Lock Plate
20. Diaphragm L ip
21. F ro n t Housing
22.
F ro n t H ousing Seal
23. Piston Rod
Fig. 5-1D--Bendix Single Diaphragm Unit (Typical)