Section Il. REPAIR AND REBUILD OF BRAKES
This section covers the repair and rebuild of the internal brakes including the relining of brake shoes.
The key numbers shown below in parentheses refer to figure 5-2
unless otherwise indicated.
(1) Model M127.
Using snap ring pliers, remove snap ring from splined end of camshaft (fig. 4-39) and remove
Disconnect slack adjuster (fig. 4-39) from air chamber yoke by removing cotter pin and
clevis pin. Slide off slack adjuster, spacer and two washers.
Withdraw camshaft (fig. 4-36) from outer side of backing plate and remove washer from
camshaft. Mark camshaft to insure installation at original location.
Drill out ten rivets (11) which secure the backing plate assembly (1) to fIange of axle and
remove plate from axle.
Drill out four rivets (6) which secure the camshaft mounting bracket (5) to the backing
plate (3) and remove bracket from plate.
Remove hex nuts (10) and Iockwashers (9) securing anchor pins (12) in backing plate (3)
and remove anchor pins.
Drill out four rivets (2) securing anchor pin bracket (4) to backing plate (3) and remove
bracket from plate.
(a) Refer to para. 4-40a(5) for removal of internal brakes.
(b) Refer to figure 5-3 for disassembly and assembly of individual parts in internal brake assem-
bly for Models M127A1, M127A1C, M128A1, M128A1C, M129A1, and M129A1C.
(c) Refer to figure 5-4 for disassembly and assembly of individual parts in internal brake assem-
bly for Models M127A2C, M128A2C and M129A2C.
(d) Refer to figure 5-5 for disassembly and assembly of individual parts in internal brake assem-
bly for Kasel Mfg. Model M129A2C.