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TM 10-4320-351-14
5.7.6 Replace Circuit Breakers CB1 or CB2. (Refer to figure 5-15.)
This task consists of:
a. Removal
b. Installation
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Screwdriver, Cross Tip, #2
Tags, Electrical (Appendix F, Section II, Item 16)
(Appendix B, Section III, Item 3)
Combination Wrench, 1/2"
(Appendix B, Section III, Item 3)
General Safety Requirements:
Equipment Condition:
None
Accessory module removed from system.
(para. 2.9)
a.
Removal.
(1)
Remove the twenty-four screws (1) and flat washers (2) that secure the control panel (3) to the control box.
(2)
Lift the control panel (3) from the control box and set on edge convenient to circuit breaker (5) to be
replaced.
(3)
Tag and remove the leads (4) attached to the circuit breaker (5).
(4)
Remove the nut (6) and lock washer (7) that secure the circuit breaker (5) to the panel. Remove the circuit
breaker (5).
b.
Installation.
(1)
Install circuit breaker (5) on control panel (3) with key fully engaged. Install and tighten nut (6) and washer
(7).
(2)
Install leads on circuit breaker (5) as tagged. Remove tags.
(3)
Install control panel (3) in control box with twenty-four screws (1) and flat washers (2).
5-37
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