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TM 9-2330-398-24
2-103. ENGINE ELECTRICAL BOX REPAIR.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tools/Test Equipment:
• Self-locking nut (Item 169, Appendix F)
• General mechanic's tool kit (Item 4, Appendix B)
Equipment Conditions:
Materials/Parts:
• Semitrailer uncoupled (refer to TM 9-2330-398-10).
• Electrical locknut (6) (Item 13, Appendix F)
• Semitrailer bonded and grounded (refer to
• Gasket (Item 71, Appendix F)
TM 9-2330-398-10).
• Lockwasher (8) (Item 94, Appendix F)
• Negative battery cable disconnected (para 2-33).
• Preformed packing (6) (Item 133, Appendix F)
a. REMOVAL
WARNING
When
troubleshooting
an
electrical
malfunction
or
performing
electrical
maintenance, ALWAYS disconnect intervehicular electrical cable from semitrailer
and disconnect negative battery cables at batteries. Failure to follow this warning
may create a spark and explosion, resulting in serious injury or death to personnel.
1. Loosen two clip screws (8) and open electrical box cover (10). Remove gasket (12) from electrical box cover (10).
Discard gasket.
NOTE
To ensure proper installation when installing electrical box, tag all leads in
electrical box necessary for removal of cables.
2. Disconnect all leads in engine electrical box (7) and remove completely.
3. Remove four capscrews (1), lockwashers (16), and nuts (15). Remove wiring harness (2) from electrical box (7).
Discard lockwashers.
4. Remove five electrical connectors (5), electrical locknuts (17), and preformed packings (6) from electrical box (7).
Discard locknuts and preformed packings.
5. Remove four screws (13) and lockwashers (14) from mounting plate (26). Remove mounting plate (26) from
electrical box (7). Discard lockwashers.
6. Remove two capscrews (9) and nuts (4) from electrical box (7). Remove electrical box (7) from angle mounting
plate (3).
7. Remove two screws (27) and lockwashers (28) and circuit breaker (29) from mounting plate (26). Discard
lockwashers.
8. Remove two screws (22) and circuit breaker (21) from mounting plate (26).
2-216
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