WARNING
TM 1-4920-455-13&P
3-20. Special Circuit Breaker for Electrlc Welder - Replace
3-20
This tasks covers: Replacement of Circuit Breaker
INITIAL SETUP
Tools:
Basic Issue Items (BII) - App C
Multimeter, NSN 6625-01-139-2512
Personnel Required:
68F Aircraft Electrician
Reference Information:
TM 55-1500-204-25/1
REPLACEMENT
HIGH VOLTAGE exists in the electrical system of this shop. All
electrical inspections, repairs or replacements shall be performed with
the power OFF and only by qualified electricians. Serious shock
hazards exist which could result in serious injury or death to personnel.
1. Removing defective circuit breaker.
a.
b.
c.
Ensure 100 AMP power cable has been discon-
nected
Loosen two screws (1) holding wires at bottom of
circuit breaker (2).
Remove black (3) and red (4) wires from bottom of
circuit breaker (2).
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