TM 9-2330-213-14&P
4-33. SERVICE BRAKE ASSEMBLY MAINTENANCE (M103A1, M105A1, AND M107A1) (Con't).
d.
MAJOR ADJUSTMENT
NOTE
Perform this adjustment at each wheel when now brakeshoes are installed.
1.
Remove nut (37), Iockwasher (36), and cover (35) from brakedrum (33). Discard Iockwasher.
2.
Rotate brakedrum (33) until inspection hole (34) is 1 in. (3.8 cm) from anchor pin (39) and adjacent to
rear brakeshoe.
3.
Loosen nut (38) on anchor pin (39).
4.
Insert a 0.010 in. (.25 mm) feeler gage in inspection hole (34).
5.
Adjust brakeshoe by turning anchor pin (39) on backing plate (3) until a slight drag is felt with feeler gage.
Remove feeler gage.
6.
Rotate brakedrum (33) until inspection hole (34) is 1 in. (3.8 cm) from adjusting stud (32) and adjacent
to rear brakeshoe.
7.
Insert a 0.020 in. (.51 mm) feeler gage in inspection hole (34).
8.
Adjust brakeshoe by turning adjusting studs (32) on backing plate (3) until a slight drag is felt with feeler
gage. Remove feeler gage,
9.
Tighten nut (38) on anchor pin (39).
10.
Install cover (35), new Iockwasher (36), and nut (37) over inspection hole (34) on brakedrum (33).
TA505275
4-46