TM 9-2320-289-34
7-4.
CALlPER REPAIR (Con’t).
CAUTION
DO NOT use metal tool to remove piston seal (6), Be careful not to scratch
caliper bore (8) when removing dust boot (7). Failure to follow this caution
may result in damage to caliper bore.
2 .
Remove dust boot (7) and piston seal (6) from caliper bore (8). Discard dust boot and piston
seal. Remove bleeder valve (5).
b.
CLEANING AND INSPECTION
WARNING
l
l
Alcohol used in this procedure is highly flammable and poisonous.
Drinking of this alcohol can cause blindness and death. Avoid inhaling
its fumes. Keep away from open flame.
Compressed air used for cleaning purposes should never exceed 30 psi
(207” kPa), Use only effective chip guarding and personal protective
equipment (goggles/shield, gloves, etc.), Failure to follow this warning
may result in injury to personnel.
CAUTION
DO NOT use emery cloth or any other form of abrasive. If crocus cloth is
used on caliper bore (8), ensure that caliper (2) is thoroughly cleaned
before assembly, Failure to follow this caution may result in damage to
caliper assembly.
1 .
Clean exterior of caliper (2) with
clean soapy water.
2.
Clean caliper bore (8), caliper
passages,
and
piston
(3)
with
denatured alcohol. Using dry, filtered,
compressed air, dry parts and blow
out all passages in caliper (2) and
bleeder valve (5).
3.
Inspect sliding surfaces of caliper (2)
and caliper bore (8) for scoring,
pitting, or corrosion, Replace caliper
if surface defects cannot be cleaned
with crocus cloth,
4.
Inspect piston (3) and for scoring,
nicks,
corrosion,
and
w o r n or
damaged plating. Replace piston if
any defects are found.
5 .
Using crocus cloth, clean caliper
mounting surfaces on truck and
remove any defects or corrosion.
TA50387
7-17
