TM 9-2320-280-20-2
4-100. NBC CONTROL BOX AND WRING HARNESS REPLACEMENT (M997, M997A1, M997A2)
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Manual References
M997, M997A1, M997A2
TM 9-2320-280-10
Tools
TM 9-2320-280-24P
General mechanic’s tool kit:
Equipment Condition
automotive (Appendix B, Item 1)
Control panel removed (para. 4-124).
Materials/Parts
Front cover panel removed (para. 11-187).
Two locknuts (Appendix G, Item 63)
Twelve lockwashers (Appendix G, Item 110)
Eight nut and lockwasher assemblies
(Appendix G, Item 146)
Nine tiedown straps (Appendix G, Item 241)
CAUTION
Use care when removing harness. Failure to do so will cause
damage to harness.
a. Removal
1.
Remove four screws (8) lockwashers (7) and cover (6) from control box (1). Discard lockwashers (7).
2. Remove nut and lockwasher assembly (11) clamp (12) and NBC harness (13) from control box stud (16).
Discard nut and lockwasher assembly (11).
NOTE
Prior to removal, tag leads for installation.
3. Remove nut (5), lockwasher (4), washer (3) and lead 782 (2) from power stud (20). Discard
lockwasher (4).
4. Disconnect NBC harness lead 791A (17) from light harness lead 791B (18).
5. Remove two screws (9) and NBC harness leads (10) from mounting buss (19).
6. Remove grommet (21) by pushing down through top of control box (1).
7. Remove grommet (14) and NBC harness (13) from body (15).
4-202
