TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 345 of 1258
TM 9-2320-280-34
6-4.
200 AMPERE ALTERNATOR (A0013036AA) TESTING AND REPAIR
This task covers:
a.
Alternator Output Testing
c.
Cleaning
b.
Disassembly/Testing
d.
Assembly
INITIAL SETUP:
Applicable Models
Personnel Required
M996, M996A1, M997A1, M997A2
One mechanic
One assistant
Tools
General mechanic's tool kit:
Manual References
automotive (Appendix G, Item 1)
TM 9-214
Test Equipment
TM 9-2320-280-20
TM 9-2320-280-24P
Multimeter (Appendix G, Item 120)
TM 9-4910-485-12
Test stand (Appendix G, Item 94)
TM 9-4910-663-12
Materials/Parts
Equipment Condition
Two brush gaskets (Appendix E, Item 2)
Alternator removed (TM 9-2320-280-20).
Gasket kit (Appendix E, Item 38)
Regulator removed (TM 9-2320-280-20).
Six lockwashers (Appendix E, Item 73)
Four lockwashers (Appendix E, Item 75)
Six lockwashers (Appendix E, Item 76)
General Safety Instructions
O-ring (Appendix E, Item 115)
Always support alternator rotor during removal
Seal (Appendix E, Item 162)
and installation.
Seal (Appendix E, Item 164)
Maintenance Level
Two seals (Appendix E, Item 165)
Direct support
Seal (Appendix E, Item 166)
Locknut and woodruff key kit
(Appendix E, Item 67)
Grease (Appendix B, Item 20)
a Alternator Output Testing
1.
Mount pivot arm of 500 amp test stand to high speed side and attach mounting flange adapter to pivot
arm.
Connect pulley drive shaft to high speed head.
Attach pulley drive shaft to mounting flange
adapter.
2.
Mount alternator to starter/generator mounting bracket on 500 amp test stand.
Connect “V" belt from
500 amp test stand pulley to pulley.
Adjust belt tension.
3.
Connect cable from alternator ground terminal to 500 amp test stand "G" terminal.
Connect cable from
alternator 'Bat" terminal to 500 amp test stand "G+" terminal.
Connect cable from alternator regulator
"IGN" to 500 amp test stand "F" terminal.
4.
Make a jumper wire with a ring terminal at both ends.
Connect jumper wire on 500 amp test stand from
IGN SWITCH terminal to “F-B ” terminal.
NOTE
Prior to operation of the test stand, make certain that all switches
and controls are in the "initial" positions as referenced in:
Operator and Maintenance Manual, TM 9-4910-663-12 (UMC
Model GSAR-500), or Operator and Maintenance Manual,
TM 9-4910-485-12 (Sun Model AGT-99A).
6-20
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