GMC 4000 Series Service Manual page 248

G M C S E R V I C E M A N U A L
Figure 3 3 — Stopm aster Brake C om ponents (Autom atic Adjuster with " Fail-Safe")
Sec. 5B
Page 241
AIR BRAKES
1 Brake Shoe and
Lining Assembly
2 Adjusting Bolt Assy.
3 Adjusting Sleeve
(Actuator)
Plunger Seal and
Retainer
Adjusting Plunger
Brake Spider
(Plunger Housing)
Adjusting Pawl
(Plunger Guide)
8 Spring
9 Gasket
10 Hollow Cap Screw
11 Bolt
12 Brake Shoe Hold-
Down Clip
13 Guide Screw
14 Anchor Plunger
(Solid)
15 Brake Shoe Return
Spring
16 Dust Shield
17 Lock Washer
18 Bolt
19 Dust Cover
20 Wedge Shaft
21 Roller
9
22 Roller Retaining
Cage
23 Wedge Spring
Retainer
24 Wedge Spring
25 Washer
26 Cotter Pin
27 Identification Ring
28 Spanner Nut
29 "Failsafe" Air
Chamber
30 Standard Air Chamber
31 Lock Washer
32 Nut
T-2291