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TM 5-4320-306-24
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 wasted bolt (2) and washer (3)
NOTE
The wasted 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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