AC Circuit Breaker A1CB2

TM 11-6130-377-14

e. Remove the electrical leads and diodes A1CRI

k. Close the front indicator panel and secure with

and A1CR2 from the DC circuit breaker A1CB1.

four captive screws.

f. Remove four screws and washers securing the

l. Turn on the DC source from the generator.

DC circuit breaker A1CB1 to the front indicator panel

m. Perform a functional verification (para 6-22) of

and remove the circuit breaker.

the inverter to check for proper operation of circuit

g. Install the replacement circuit breaker in the

breaker A1CB2.

cutout of the front indicator panel and align the screw

holes.

6-13.

Meter, Indicators A1M1, A1M2, A1M3 and

A1M4

h. Insert the four screws and washers through the

(fig. 2-1 and 3-1)

front indicator panel and into the circuit breaker.

All four meters of the inverter are mounted in the same

Tighten the screws to secure the circuit breaker to the

manner. The electrical leads to the meter terminals are

front panel.

different. The same method of removal or replacement

i. Install the electrical leads and diodes A1CR1

shall be used for all four. To remove or replace a meter

and A1CR2 on the circuit breaker terminals and secure

proceed as follows:

with washers and nuts.

a. Position DC circuit breaker A1CB1 to OFF.

j. Connect the DC input cables to the terminals of

b. Open front indicator panel to gain access to

A1TB1.

meter terminals and hold down clamp.

k. Close the front indicator panel and secure with

c. Tag the electrical leads going to the terminals of

four captive screws.

the meter that requires removing to ensure proper

l. Turn on the DC source at the generator.

reassembly.

m. Perform a functional verification (para 6-22) of

d. Remove the electrical leads from the meter

the inverter to check for proper operation of the circuit

terminals and replace the nuts and washers on the

breaker A1CB1.

terminal lugs.

6-12.

AC Circuit Breaker A1CB2

CAUTION

(fig. 2-1 and 3-1)

The meter and the bezel must be

To remove or replace the AC circuit breaker A1CB2

supported during the following step

proceed as follows:

to prevent damage.

a. Shut down the DC source from the generator.

b. Open the front indicator panel to gain access to

e. Loosen the screws of the two meter clamps and

DC INPUT terminal board A1TB1.

remove the clamps.

c. Disconnect DC input electrical cables from

f. Remove the bezel from the forward side of the

terminal board A1TB1.

indicator panel and the meter from the rear side of the

d. Tag all electrical leads going to the terminals of

indicator panel.

AC circuit breaker A1CB2 to ensure proper reassembly.

g. Install bezel from the front, in cutout of front

e. Remove the screws and washers securing the

indicator panel.

electrical leads to the terminals of the circuit breaker

h. Position meter between the slotted sides of the

A1CB2 and remove the leads.

bezel so that the meter face aligns with the panel cutout

f. Back off the four nuts securing the circuit

and the bezel opening.

breaker brackets to the front panel unit the circuit

i. Insert the securing brackets with screws

breaker can be lifted from the brackets. Remove the

installed through the slots in the side of the bezel and

circuit breaker.

rest them on the frame of the meter.

g. Position replacement circuit breaker in brackets

j. Tighten the screws evenly against the front

and align with cutout in front panel.

panel assembly. This will pull the bezel and meter tight

h. Tighten the four nuts to pull the circuit breaker

against the panel and secure them.

bracket tight against the front panel and circuit breaker.

k. Install the electrical leads to their respective

i. Install the electrical leads on the circuit break

terminals and secure with nuts and washers.

terminals using the screws and washers.

Tighten

l. Close front indicator panel and secure with

screws.

captive screws.

j. Reconnect the DC input electrical cables to the

DC INPUT terminal board A1TB1.

Change 1

6-13