TM-9-2330-326-14-P

SEMITRAILER, TACTICAL, DROP DECK BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, M871A3

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

FEBRUARY 2006

TM-9-2330-326-14-P - Page 331 of 540

TM 9-2330-326-14&P

H-77

H-28. TROUBLESHOOTING BRAKE DRUMS (Cont.)

EXAMPLE

PROBLEM

CAUSE

SOLUTION

Photo Not

Required For

Explanation

Out-of-round:

variation in

diameter

Out-of-round:

concentricity

Excessive wear

Heat distortion

Improper fit to pilot or

improper seating on

wheel or hub

Abrasive material

between lining and drum

or poor quality lining

Re-bore brake drum within

normal limits or replace.

See maintenance

instructions regarding

turning of brake surface.

Clean all mounting

surfaces. Check for

correct fit and clearance to

wheel.

Check maximum

diameter and re-bore

within limit or replace.

See maintenance

instructions regarding

turning of brake surface.