TM-9-2320-260-34-1
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 1 OF 2
JULY 1994
TM-9-2320-260-34-1 - Page 640 of 657
TM 9-2320-260-34-1
11-7. PARKING AND SERVICE BRAKEDRUM REPAIR
THIS TASK COVERS:
a. Cleaning
b. Inspection and Repair
INITIAL SETUP
APPLICABLE MODELS
EQUIPMENT CONDITIONS
All
Parking and service brakedrums removed
TOOLS
(TM 9-2320-260-20).
General mechanic’s tool kit
GENERAL SAFETY INSTRUCTIONS
(Appendix B, Item 1)
MATERIALS/PARTS
Drycleaning solvent (Appendix C, Item 48)
REFERENCES (TM)
TM 9-2320-260-20
TM 9-2320-260-34P-1
TM 9-4910-482-10
Keep fire extinguisher nearby when using
drycleaning solvent.
Do not use compressed air or dry brush when
working in areas of asbestos dust.
Wear a filter mask or respirator when working
around asbestos dust.
WARNING
l Do not use compressed air or dry brush for cleaning when
working in areas where vehicle asbestos brake lining dust may
accumulate. Remove asbestos dust and other residue from these
areas using a soft bristle brush or cloth soaked with water.
Breathing asbestos dust may cause injury to personnel.
l Drycleaning solvent is flammable and will not be used near open
flame. Use only in well-ventilated places. Failure to do so may
result in injury or death to personnel.
Wash parking or service brakedrum (1) or (2) with water and soft bristle brush. Allow to air dry. Clean
with drycleaning solvent.
b. Inspection and Repair
1. Inspect parking and service brakedrums (1) and (2) for warps and cracks. Replace brakedrums (1)
and/or (2) if warped or cracked.
2. Inspect parking and service brakedrums (1) and (2) for scores or pits. If scored or pitted, measure
inside diameter. Replace parking brakedrum (1) if inside diameter is greater than 13.5 in.
(342.9 mm). Replace service brakedrum (2) if inside diameter is greater than 16.625 in. (422.28 mm).
3. Resurface brakedrums (1) and/or (2) to remove scores and/or pits (TM 9-4910-482-10).
4. If parking (1) or service (2) brakedrums were resurfaced, measure inside diameter. Replace if
measurement exceeds wear limits.
11-28
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