TM 10-4320-307-24
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ALTERNATOR TEST/REPLACE (CONT ).
REMOVAL:
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
mainte-nance 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.
Do not smoke or use open flame or spark-producing equipment in the vicinity of
the battery.
Avoid making contact across the battery terminals. This can result in severe arcing
which could cause an explosion resulting in bodily injury.
CAUTION
Damage to the alternator could occur if the following precautions are not observed:
Do not reverse connecting polarity when connecting electrical leads and
cables to the alternator.
Do not operate the alternator in an open circuit with the rotor winding energized.
Do not ground the alternator output circuit or field terminal.
Do not disconnect leads from alternator or other electrical components before
disconnecting the negative (-) terminal from the battery.
Do not disconnect the battery while the alternator is operating.
Do not reverse battery cable connections.
1.
Remove battery cables as follows:
CAUTION
Disconnect battery cable from negative battery post before disconnecting any
other leads from engine components. This precaution will prevent short circuits
which could damage the alternator, voltage regulator, or other electrical
components.
a.
Loosen negative battery post terminals.
b.
Using battery terminal puller to remove loosened terminal lugs, remove negative battery terminal first.
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