TM 9-2330-389-14&P
CHAPTER 5
DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
Section I. WHEEL MAINTENANCE
5-1.
BRAKEDRUM REPAIR.
This Task Covers:
a.
Inspection
b.
Repair
Initial Setup:
Equipment Conditions:
Tools/Test Equipment:
Remove tire assembly (para 4-28).
Field basic tool set
Brakedrum removed (para 4-32).
a.
INSPECTION
WARNING
· DO NOT handle brake shoes, brake drums, or other brake components unless
area has been properly cleaned. There may be asbestos dust on these
components, which can be dangerous if you touch it or breathe It. Wear an
approved filter mask and gloves. Never use compressed air or a dry brush to
clean brake components. Dust may be removed using an Industrial-type
vacuum cleaner. Clean dust or mud away from brake components with water
and a wet, soft cloth. Failure to follow this warning may result in serious illness
or death to personnel.
· DO NOT reuse a brakedrum that exceeds maximum wear specifications.
Maximum rebore diameter is 12.090 inches (30.71 cm). Failure to follow this
warning may result in brake failure and serious injury or death to personnel.
1.
Inspect braking surface (1) of brakedrum (2) for
war page, cracks, heat checking, or scoring.
Discard brakedrum (2) if cracked or scoring is
deeper than 0.090 inches (2.29 mm).
2.
Check braking surface (1) of brakedrum (2) at
four locations 45 degrees apart using inside
micrometer. Discard brakedrum if out-of-round
requires removal of more than 0.090 inches
(2.29 mm) of metal.
5-1
