a. Removal
b. Installation
FOLLOW-ON TASK: Connect battery ground cable (para. 4-73).
TM 9-2320-280-20-3
12-139. AB-652/GR ANTENNA REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Manual References
M998, M998A1, M1038, M1038A1
TM 9-2320-280-24P
Tools
Equipment Condition
General mechanic’s tool kit:
Battery ground cable disconnected
automotive (Appendix B, Item 1)
(para. 4-73).
Materials/Parts
Four locknuts (Appendix G, Item 106)
1. Disconnect antenna cable (7) from adapter (8).
2. Loosen ground clamp (9) and remove from adapter (8).
3. Remove adapter (8) from lower insulator (10).
4. Remove antenna (1), rubber washer (13), ground ring (12), rubber washer (11), and lower
insulator (10) from antenna mounting bracket (5).
5. Remove four locknuts (6), washers (3), capscrews (2), washers (3), and adapter (4) from antenna
mounting bracket (5). Discard locknuts (6).
1. Install adapter (4) on antenna mounting bracket (5) with four washers (3), capscrews (2),
washers (3), and locknuts (6).
2. Install lower insulator (10), rubber washer (11), ground ring (12), rubber washer (13), and
antenna (1) on mounting bracket (5).
3. Install adapter (8) on lower insulator (10).
4. Install ground clamp (9) on adapter (8) and tighten.
5. Connect antenna cable (7) to adapter (8).
12-213
