TM 10-4610-239-24
TM 08580B-24/3
3-10. REPAIR BRAKE DRUM.
This task covers:
a. Inspection. b. Repair.
INITIAL SETUP.
a.
Tools.
Brake Drum Calipers (Appx B, Sect III, Items 6 and 9).
Floor-Mounted Brake Drum Lathe (Appx B, Sect III,
Items 6 and 9).
Wire Brush (Appx B, Sect III, Item 10).
b.
Equipment Condition. Brake drum on workbench.
INSPECTION.
a.
Using brake drum calipers, measure inside diameter (A) of brake drum.
b.
If caliper indicates more than 12.370 inches (31.42 cm), discard drum.
c.
If caliper indicates less than 12.370 inches (31.42 cm), repair drum.
d.
If caliper measurement indicates brake drum is repairable, inspect drum braking surface (1) for
scoring, surface cracks, and hot spots.
e.
Use wire brush to remove loose rust and inspect external surface (2) for corrosion and cracks.
f.
If drum is cracked, discard drum.
REPAIR.
a.
Use brake drum cutting lathe to cut scoring gro ves, surface cracks, and hot spots from braking
o
surface. Refer to TM 9-4910-482-10.
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