TM 9-2320-280-34
This task covers:
a. Alternator Output Testing
d. Cleaning
b. Disassembly
e. Assembly
c. Static Testing
INITIAL SETUP:
Tools
Personnel Required
General mechanic's tool kit:
One mechanic
automotive (Appendix G, Item 1)
One assistant
Puller (Appendix G, Item 136)
Manual References
Test Equipment
TM 9-2320-280-20
Multimeter (Appendix G, Item 120)
TM 9-2320-280-24P
Test stand (Appendix G, Item 94)
TM 9-4910-663-12
TM 9-4910-485-12
Materials/Parts
Equipment Condition
Silicone compound (Appendix B, Item 57)
Alternator removed (TM 9-2320-280-20).
RTV sealant (Appendix B, Item 43)
Locknut (Appendix E, Item 81)
General Safety Instructions
Three lockwashers (Appendix E, Item 111)
Always support alternator core and shaft assembly
Eighteen locknuts (Appendix E, Item 68)
during removal and installation.
Maintenance Level
Direct support
a. Alternator Output Testing
1.
Mount pivot arm of 500 amp test stand to high-speed side and install mounting flange adapter on
pivot arm. Connect pulley driveshaft to high-speed head. Install pulley driveshaft on mounting
flange adapter.
2.
Mount alternator to starter/alternator mounting bracket on 500 amp test stand. Connect belt from
test stand pulley to alternator pulley. Adjust belt tension.
3.
Connect cable from alternator ground terminal to test stand G- terminal. Connect cable from alter-
nator battery terminal to test stand G+ terminal. Connect cable from alternator regulator IGN to
test stand F terminal.
4.
Connect 28 VDC output and 14 VDC output to test stand. Auxiliary voltage and current meters
may be required to measure 14 VDC output.
5.
Fabricate a jumper wire with a ring terminal at both ends. Connect jumper wire on test stand from
IGNITION SWITCH terminal to F-B terminal.
Change 2
