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TM 5-4320-305-24
3-24. REPLACE/REPAIR CRANKSHAFT V-BELT PULLEY
This task covers:
a. Removal
c. Repair
b. Inspection
d. Installation
INITIAL SETUP
Tools
Equipment
Condition
Shop set, automotive repair, field
Para
Condition Description
maintenance, basic
2-25
Alternator and cooling air blower
V-belts removed.
General Safety Instructions
Well-ventilated area required.
REMOVAL:
WARNING
Severe injury may result from contact with rotating engine parts, V-belts, or fan. Shut off the
engine when it is necessary to inspect, service, or perform maintenance on any moving parts.
Close control panel to prevent accidental starting. If it is necessary to run engine with rotating
parts exposed, be sure the area around the moving parts is clear of personnel and tools.
1 Restrain crankshaft V-belt pulley (1).
2 Remove waisted bolt (2) and washer (3).
NOTE
The waisted bolt is left-hand threaded. Turn
clockwise to loosen.
3 Pull crankshaft V-belt pulley (1) from crankshaft.
4 Remove parallel pin (4).
INSPECTION:
1 Inspect crankshaft V-belt pulley for nicks, dents, rust, or other damage.
2 Inspect pulley trough for sharp or jagged edges and the parallel pin bore for wear or elongation. Replace pulley if
damaged.
3 Inspect parallel pin for wear, bends, or signs of shearing. If pin is damaged, it must be replaced, and the crankshaft
must be inspected by general support maintenance.
3-125
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