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Page Title:
Figure 3-14. Circuit breaker removal, installation and test |
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 TM 5-4120-356-14
REMOVAL OF CIRCUIT BREAKER
1. JUNCTION BOX
2. SCREW
REFER TO PARAGRAPH 3-10g FOR PRELIM-
1.
3. WASHER
INARY STEPS IN REMOVAL OF THE CIRCUIT
4. COVER
BREAKER.
5. PIN
6. ARM
2. REMOVE SIX SCREWS (2) AND WASHERS (3)
7. CIRCUIT BREAKER
AND PULL COVER (4) LOOSE FROM JUNCTION
BOX (1).
REMOVE PIN (5) FROM ARM (6) AND SEPARATE
3.
ARM FROM CIRCUIT BREAKER.
4. TAG AND DISCONNECT ELECTRICAL LEADS
FROM CIRCUIT BREAKER.
5.
REMOVE CIRCUIT BREAKER (7) FROM JUNCTION
BOX (1).
INSTALLATION OF CIRCUIT BREAKER
POSITION CIRCUIT BREAKER IN JUNCTION BOX
1.
AND CONNECT ELECTRICAL LEADS TO CIRCUIT
BREAKER TERMINALS. REMOVE TAGS FROM LEADS.
2.
INSERT END OF ARM (6) THROUGH HOLE IN
COVER (4).
3. POSITION END OF ARM (6) ON CIRCUIT BREAKER
SWITCH LEVER AND SECURE WITH PIN (5).
4. SECURE COVER (4) AND CIRCUIT BREAKER (7)
TO JUNCTION BOX (1) WITH SIX SCREWS (2)
AND WASHERS (3).
5. REFER TO PARAGRAPH 3-10g FOR FINAL STEPS
IN INSTALLATION OF CIRCUIT BREAKER.
CIRCUIT BREAKER
CIRCUIT BREAKER
SWITCH TO "OFF"
SWITCH TO "ON"
POSITION:
POSITION:
CHECK FOR
CHECK FOR
SHORT CIRCUIT
CONTINUITY
BETWEEN
BETWEEN
TERMINALS
TERMINALS
C1 AND C2
C1 AND C2
B1 AND B2
B1 AND B2
A1 AND A2
A1 AND A2
C AND NO
C AND NO
TABLE A
CIRCUIT BREAKER SCHEMATIC DIAGRAM
TABLE B
REFER TO TABLE A AND CONTINUITY CHECK THE CIRCUIT BREAKER.
1.
REPLACE CIRCUIT BREAKER IF NO CONTINUITY BETWEEN TERMINALS
LISTED.
TS5-4120-356-14/3-14
2.
REFER TO TABLE B AND SHORT CIRCUIT CHECK CIRCUIT BREAKER.
REPLACE CIRCUIT BREAKER IF ANY SHORT CIRCUITS ARE FOUND.
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