TM 9-2520-272-34&P
4-21.
ASSEMBLE RIGHT END COVER ASSEMBLY
(SHEET 13 OF 22)
Assemble Right Brake Apply Cam Shaft Components
28
29
30
31
32
33
34
35
36
37
38
39
Install right brake apply cam shaft (24) in soft jaw vise.
Install spacer (25) on cam follower shaft (26).
Place threaded end of cam follower shaft (26) through
lobe (27) with cam follower (28) on side of lobe
opposite splined end of shaft (24).
Using fingers, install locknut (29) on cam follower
shaft (26).
Hold screwdriver tip in slot at center of cam follower
(28) to prevent cam follower shaft (26) from turning.
NOTE
When installing nut (29) using torque
wrench look at prevailing torque (run-in
torque) reading on torque wrench as nut
turns.
Using torque wrench install locknut (29) on cam
follower shaft (26). Determine torque.
Using torque wrench tighten nut (29) to 8-10 lb-ft
(11-14 Nero) plus prevailing torque (run-in torque).
Check cam follower roller (28) to be sum it turns
Remove brake apply cam shaft (24) from vise.
Install spring (30) on brake apply cam shaft (24) with
curved end of spring on first.
Install curved end of spring (30) in cam arm (31).
Using retaining ring pliers, install retaining ring (32)
on shaft (24) to retain spring (30).
Go to Sheet 14
4-138
Para. 4-21, Task 4
CAUTION
Cam follower roller (28) must turn after
final tightening of locknut. If roller locks,
parts will wear rapidly and brake apply
valve/ brake apply cam shaft action may be
impaired.
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