TM 9-4110-255-14
4-21. CIRCUIT BREAKER CB1 TESTING AND REPLACEMENT.
This task covers:
a. Testing
b. Removal
c. Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Lock Washers (2)
Refrigeration unit shut down (para 2-7) and battery
1, Appendix G
disconnected (para 4-35).
Marker Tags (2)
Control box cover door raised and latched.
4, Appendix E
a. Testing. (See Figure 1-4.)
(1) Be sure battery has been disconnected then remove two bolts (1) and lock washers (2). Open control
panel (3). Discard lock washers.
(2) Tag and disconnect wire leads (4).
Figure 4-15. Circuit Breaker
4-56
