TM 10-8145-222-23
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REPAIR CONTINUED
6. Remove selector switch knob (Figure 2, Item 3) and selector switch plate (Figure 2, Item 7).
7. Remove four screws (Figure 2, Item 8) securing selector switch (Figure 2, Item 9) to power box door (Figure 2,
Item 1).
8. Remove selector switch (Figure 2, Item 9) through rear side of power box door (Figure 2, Item 1).
9. Install new selector switch (Figure 2, Item 9) through rear side of power box door (Figure 2, Item 1) and secure
using four screws (Figure 2, Item 8).
10. Install selector switch plate (Figure 2, Item 7) and selector switch knob (Figure 2, Item 3) and secure with screw
(Figure 2, Item 6).
11. Reconnect wiring (Figure 2, Item 2) to selector switch (Figure 2, Item 9) as tagged and secure using terminal
screws (Figure 2, Item 5).
12. Torque terminal screws (Figure 2, Item 5) to 20 to 25 inch-pounds (WP 0091).
13. Remove wire tags.
14. Reinstall tie straps (Figure 2, Item 4) as required to secure wiring (Figure 2, Item 2) inside of power box.
15. Close power box door (Figure 2, Item 1).
16. Reconnect battery negative (-) terminal (WP 0053, Reconnect).
17. Operate unit in accordance with normal operating procedures to verify proper operation after replacement of
selector switches S1, S2 (TM 10-8415-222-10, Operating Procedures).
18. Place MTRCS back into desired mode of operation (TM 10-8415-222-10, Operating Procedures).
Replace Circuit Breakers CB1, CB2
NOTE
This WP procedure can be used to replace either of the circuit breakers, CB1 or CB2.
For this reason, no specific circuit breaker will be referred to in the procedure.
1. Open power box door (Figure 3, Item 1) and secure open.
2. Tag wiring (Figure 3, Item 2) to circuit breaker (Figure 3, Item 3).
3. Carefully cut and remove any tie straps (Figure 3, Item 4), if required, to gain access to terminal screws
(Figure 3, Item 5).
4. Remove two screws (Figure 3, Item 13) securing circuit breaker handle mechanism (Figure 3, Item 6) to power
box door (Figure 3, Item 1).
5. Remove circuit breaker handle mechanism (Figure 3, Item 6).
6. Remove four screws (Figure 3, Item 7), lock washers (Figure 3, Item 8), washers (Figure 3, Item 9), and nylon
washers (Figure 3, Item 10) securing circuit breaker bracket (Figure 3, Item 11) to power box door (Figure 3,
Item 1). Discard lock washers.
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