TM 9-2320-272-24-3
4-161. ELECTRICAL LOAD CENTER BOX MAINTENANCE (Contd)
b. Disassembly
1.
Remove six plates (1) from load center cover (2).
2.
Remove two screws (32), jumper wire (31), and ground B cable (29) from relay (4).
3.
Remove screws (33) and (28) and ground N cable (30) from relay (4) and neutral buss bar (11).
4.
Remove screw (34) and ground B cable (29) from neutral buss bar (11).
5.
Remove screws (25) and (5) and relay cable (3) from 20-amp circuit breaker (26) and relay (4).
6.
Remove three screws (6), lockwashers (7), and relay (4) from load center box (12). Discard
lockwashers (7).
7.
Remove screw (27) and cable (8) from neutral buss bar (11).
8.
Remove six screws (16) and insulators (17) from load center (12).
9.
Remove nine screws (24) and nine 20-amp circuit breakers (26) from load center (12).
10.
Remove three screws (22) and 30-amp circuit breaker (23) from load center (12).
11.
Remove three screws (20) and 40-amp circuit breaker (21) from load center (12).
12.
Remove twelve screws (19) and four 20-amp circuit breakers (18) from load center (12).
13.
Remove three screws (15) and 100-amp circuit breaker (14) from load center (12).
14.
Remove grommet (13) from load center (12).
15.
Remove two screws (10) and blackout door switch (9) from load center (12).
c. Assembly
1.
Install
100-amp circuit breaker (14) on load center (12) with three screws (15).
2.
Install
four 20-amp circuit breakers (18) on load center (12) with twelve screws (19).
3.
Install
40-amp circuit breaker (21) on load center (12) with three screws (20).
4.
Install
30-amp circuit breaker (23) on load center (12) with three screws (22).
5.
Install
nine 20-amp circuit breakers (26) on load center (12) with nine screws (24).
6.
Install
six insulators (17) on load center (12) with six screws (16).
7.
Install
relay (4) on load center (12) with three new lockwashers (7) and screws (6).
8.
Install
cable (8) on neutral buss bar (11) with screw (27).
9.
Install
relay cable (3) on 20-amp circuit breaker (26) and relay (4) with two screws (25) and (5).
10.
Install
ground B cable (29) on neutral buss bar (11) with screw (34).
11.
Install
ground N cable (30) on relay (4) and neutral buss bar (11) With two screws (33) and (28).
12.
Install
jumper wire (31) and ground B cable (29) on relay (4) with two screws (32).
13.
Install
six plates (1) on load center cover (2).
14.
Install
blackout door switch (9) on load center (12) with two screws (10).
15.
Install
grommet (13) on load center (12).
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