Quantcast TROUBLESHOOTING BRAKE DRUMS (Cont.) - TM-9-2330-326-14-P0328

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TM 9-2330-326-14&P
H-28.
TROUBLESHOOTING BRAKE DRUMS (Cont.)
NOTE
Brake drums should be replaced in pairs to achieve the same
braking power on the axle.
EXAMPLE
PROBLEM
CAUSE
SOLUTION
Cracked brake
Mishandling
Replace brake drum.
drum (new)
Cracked brake
Heat checks connect
Replace brake drum.
drum (used)
together and grow
Check brake balance,
through drum section
brake return springs, brake
adjustment, and lining type
within vehicle combination.
Replace brake drum.
Cracked brake
Improper shoe contact
Shoes must contact drum
drum (used, low
at the center of the shoe.
mileage)
Light heat check
Normal condition
Does not impair brake
performance. Brake drum
may be turned with
normal limit. See
maintenance instructions
regarding turning of brake
surface.
Heavy heat
Imbalanced brake
Replace brake drum. Check
check
system, dragged
brake balance, brake return
brakes, or driver abuse.
springs, brake adjustment,
Caused by constant
and lining type within vehicle
heating and cooling of
combination.
brake surface.
H-74



 


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