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TM 10-4320-343-14
4.10.7 Alternator Belt Maintenance.
This task covers:
4.10.7.1 Adjust
4.10.7.3 Installation
4.10.7.2 Removal
INITIAL SETUP
Tools
General Safety Instructions
General Mechanic’s Tool Kit (appendix B,
Section III, Item 1)
To prevent rolling or sliding, do not
work on equipment that is not securely
Equipment Conditions
stabilized.
Equipment shut down, refer to
Do not work on equipment without
paragraph 2.5.1.2 or 2.5.2.2.
following standard shop safety
precautions.
V-belt guard removed (paragraph 4.10.6).
4.10.7.1 Adjust.
To prevent rolling or sliding, do not
not securely stabilized.
Ensure both
work on equipment
wheels are secure
that is
.
Failure to obey this warning may result in serious personal
a.
b.
c.
d.
injury.
Measure belt deflection as shown in figure 4-11.
Deflection should be 1/4
inch.
Loosen bolts (1 and 2) and reposition alternator to obtain desired belt
deflection of 1/4 inch.
Hold alternator in place and ensure belt deflection is maintained at 1/4 inch.
Tighten bolts (1 and 2).
Repeat steps a, b and c until proper deflection is obtained.
4.10.7.2 Removal.
a.
Loosen bolts (1 and 2).
b.
Push alternator (3) towards engine and remove V-belt (4).
4.10.7.3 Installation.
a.
Position alternator V-belt (4) on alternator pulley (5) and crankshaft
pulley (6).
b.
Move alternator (3) away from engine to tighten V-belt for 1/4 inch (6mm)
deflection.
c.
Hold alternator (3) in place and ensure belt deflection is maintained.
Tighten bolts (1 and 2).
d.
Measure belt deflection as shown in figure 4-11.
Repeat steps b and c until
proper deflection is obtained.
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