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TM 10-4320-324-14
5-7.
Alternator Assembly Testing.
This task covers:
a.
Testing
b.
Follow-on Maintenance
INITIAL SETUP:
Test Equipment
Equipment Condition
Voltmeter, item 40, section III, appendix B
Alternator removed (para 4-35).
Tachometer, item 43, section III, appendix B
Tools
Tool kit, general mechanics, item 35, section 11,
appendix B
CAUTION
Do not, under any circumstances, short field terminal of alternator to ground. Permanent damage to
regulator may occur.
Do not disconnect voltage regulator while alternator is operating. Large voltage transient may occur and
damage regulator.
Do not disconnect alternator output lead from alternator while alternator is operating, as damping effect of
battery will be lost. The voltage will rise to an extreme value and permanent damage to regulator may
occur.
Do not remove alternator from engine without first disconnecting ground battery cable. Permanent
damage to regulator may result.
NOTE
Battery used in electrical testing must be of correct voltage and must be in good condition and fully
charged.
5-7
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