ELAPSED TIME Meter A1M5

TM 11-6130-377-14

d. Using a 25 watt soldering iron, unsolder the

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

the inverter to check for proper operation of the meters.

electrical leads from the resistor terminals.

e. Remove the nut, lockwasher and flat washer

6-14.

ELAPSED TIME Meter A1M5

from the threaded stud and remove the resistor.

(fig. 2-1 and 3-1)

f. Install replacement resistor on threaded stud

To remove or replace ELAPSED TIME Meter A1M5,

and secure using a flat washer, lockwasher and nut.

proceed as follows:

g. Attach the electrical leads to the resistor

a. Position the DC circuit breaker A1CB1 to OFF.

terminals making a good mechanical connection then

b. Open front indicator panel to gain access to

solder the electrical leads to their respective terminals.

elapsed timer attaching hardware and electrical leads.

h. Close front indicator panel and secure with the

c. Tag all electrical leads to ensure proper

four captive screws.

reassembly.

i. Perform equipment starting procedures (para 3-

d. Remove the elapsed timer electrical leads

3) to check proper performance of lamps.

attached to the terminals of the AC VOLTAGE meter.

e. Remove the three screws, lockwashers and nuts

6-16.

Indicator Lamp Holders A1D S1 and A1DS2

securing the elapsed timer to the front indicator panel.

(fig. 2-1 and 3-1)

Remove the meter.

To remove or replace a defective indicator lamp holder

proceed as follows:

f. Install replacement meter from the front,

a. Position the DC circuit breaker A1CB1 to OFF.

through the cutout in the front indicator panel and align

the screw holes.

b. Open front indicator panel to gain access to the

defective indicator lamp holder.

g. Insert screws, from the front and install the

lockwashers and nuts from the rear. Tighten the nuts to

c. Tag the electrical leads going to the lamp holder

secure the meter to panel.

terminals to ensure proper reassembly.

d. Using a 25 watt soldering iron, unsolder the

NOTE

electrical leads from the lamp holder terminals.

If electrical leads do not have

e. Unscrew the jam nut from the indicator lamp

terminal lugs attached, install them

holder and remove the lockwasher. Push the lamp

at this time.

holder through the panel to remove.

f. Install the replacement indicator lamp holder

h. Connect the electrical leads of the meter to the

through the front indicator panel.

AC voltage meter terminals.

g. Slip the lockwasher over the indicator lamp

i. Close the front indicator panel and secure with

holder and then screw down on the jam nut to secure

four captive screws.

the holder to the front panel.

j. Perform equipment starting procedures (para 3-

h. Attach the electrical leads to the lamp holder

3) to check operation of ELAPSED TIME meter.

terminals making a good mechanical connection.

Solder the electrical leads to the terminals.

6-15.

Indicator Lamp Resistors A1R8 and A1R12

i. Close the front indicator panel and secure the

(1973 Model Only)

four captive screws.

(fig. 2-1)

j. Perform equipment starting procedures (para 3-

To remove and replace indicator lamp resistors proceed

3) to check proper performance of lamps.

as follows:

6-17. Door Interlock Switch

a. Position the DC circuit breaker A1CB1 to OFF.

(fig. 2-1)

b. Open the front indicator panel to gain access to

To remove or replace a defective door interlock switch

the resistors A1R8 and A1R12.

A1S1 proceed as follows:

c. Tag the electrical lead going to the resistor

a. Position DC circuit breaker A1CB1 to OFF.

terminals to ensure proper reassembly.

Change 1

6-14