TM 10-8145-222-23
0083
REPAIR CONTINUED
7. Carefully pull circuit breaker bracket (Figure 3, Item 11), with circuit breaker (Figure 3, Item 3) attached, away
from rear side of power box door (Figure 3, Item 1).
8. Remove two screws (Figure 3, Item 12) securing circuit breaker (Figure 3, Item 3) to circuit breaker bracket
(Figure 3, Item 11).
9. Remove circuit breaker (Figure 3, Item 3) from circuit breaker bracket (Figure 3, Item 11).
10. Remove circuit breaker terminal screws (Figure 3, Item 5) and disconnect wiring (Figure 3, Item 2) from circuit
breaker (Figure 3, Item 3).
11. Remove circuit breaker (Figure 3, Item 3).
12. Reconnect wiring (Figure 3, Item 2) to new circuit breaker (Figure 3, Item 3) as tagged and secure using
terminal screws (Figure 3, Item 5). Torque terminal screws (Figure 3, Item 5) to 40 inch-pounds (WP 0091).
NOTE
Make sure that the replacement circuit breaker is low temperature rated to a -25F.
13. Install new circuit breaker (Figure 3, Item 3) into circuit breaker bracket (Figure 3, Item 11) and secure with two
screws (Figure 3, Item 12).
14. Install circuit breaker bracket (Figure 3, Item 11), with circuit breaker (Figure 3, Item 3) attached, onto power
box door (Figure 3, Item 1) using four screws (Figure 3, Item 7), new lock washers (Figure 3, Item 8), washers
(Figure 3, Item 9), and nylon washers (Figure 3, Item 10).
15. Tighten screws (WP 0091).
16. Install circuit breaker handle mechanism (Figure 3, Item 6) to front of power box door (Figure 3, Item 1) and
secure using two screws (Figure 3, Item 13).
17. Remove tags from wiring (Figure 3, Item 2).
18. Install tie straps (Figure 3, Item 4) as required to secure wiring (Figure 3, Item 2) inside of power box (Figure 3,
Item 1).
19. Close and secure power box door (Figure 3, Item 1).
20. Reconnect battery negative (-) terminal (WP 0053, Reconnect).
21. Operate unit in accordance with normal operating procedures to verify proper operation after replacement of
circuit breakers CB1, CB2 (TM 10-8415-222-10, Operating Procedures).
22. Place MTRCS back into desired mode of operation (TM 10-8415-222-10, Operating Procedures).
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