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TM 9-2330-272-14
4-31. SERVICE BRAKE ADJUSTMENT (Con’t).
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Loosen nut (9) on anchor pin (10).
Insert a 0.010 in. (0.25 mm) feeler gage in inspection hole (5) between brakeshoe lining and brakedrum (4).
Adjust brakeshoe by turning anchor pin (10) on backing plate (3) until a slight drag is felt with feeler gage.
Remove feeler gage.
Rotate brakedrum (4) until inspection hole (5) is 1 ~ in. (3.8 cm) from adjusting stud (2) and adjacent to rear
brakeshoe.
Insert a 0.020 in. (0.51 mm) feeler gage in inspection hole (5) between brakeshoe lining and brakedrum (4).
Adjust brakeshoe by turning adjusting stud (2) on backing plate (3) until a slight drag is felt with feeler gage.
Remove feeler gage.
Tighten nut (9) on anchor pin (10).
Repeat steps 3 through 10 for front brakeshoe.
Install cover (6), new Iockwasher (7), and nut (8) over inspection hole (5) on brakedrum (4).
Remove jackstand and lower axle (1).
b .
MINOR ADJUSTMENT
NOTE
Perform this adjustment at each wheel to compensate for normal brakeshoe lining
wear.
1.
Raise axle (1) enough to allow wheel to turn freely. Support axle with jackstand.
2.
Adjust brakeshoes by turning two adjusting studs (2) on backing plate (3) until a slight drag is felt when wheel is
spun.
3.
Back off adjustment until wheel turns freely.
4.
Remove jackstand and lower axle (1).
FOLLOW-ON TASKS:
l Install wheels (para 4-43).
4-53
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