Preliminary Starting Procedure

TM 11-6625-1635-12

2-4. Preliminary Starting Procedure

Note. If an abnormal indication is obtained during the

starting procedure, refer to the monthly preventive

Perform the operations listed below before

maintenance cheks and service chart (para 3-6) for

starting the equipment.

corrective measures.

a. On the maintenance kit unmodified, set all

To start the equipment, make sure the controls

switches to OFF.

are set as required by the preliminary starting

b. On the maintenance kit modified, set the

p r o c e d u r e (para 2-4). Pet-form the procedure

transmit-interphone selector switch to position 3,

given below.

the RECEIVERS switch 3 to ON and the AVC

a. Set the POWER switch to ON. On the

GROUNDED switch to the up position. Set all

m a i n t e n a n c e kit unmodified, t h e test panel

other switches on the maintenance kit to OFF.

indicator lamps and the panel lamps on the radio

c. Set the EXT SQUELCH CONT to off.

c o n t r o l should light. On the maintenance kit

d. Set the VHF COMM VOL control fully

modified, the POWER 28.7 Vdc B+ lamp, and

clockwise.

t h e panel lamps on the radio control and in-

e. Apply primary operating power (para 1-5)

tercom control should light,

to the maintenance kit.

Connect

the

2-5. Starting Procedure

maintenance kit as shown

Figure 2-3. Radio Set AN/ARC-134 connected to maintenance kit.

c. Set the VHF COMM OFF-PWR switch to

d. Set the meter switch

(fig. 2-4) on the

P W R . The indicator lamps behind the VHF

AN/ARC-134 front panel to

LINE V 100 V

COMM frequency counter dials should light. On

FS; the AN/ARC-134 meter

(fig. 2-4) should

indicate 27.5 volts dc (--20

+ 10 percent).

the maintenance kit modified, the DC ammeter

should indicate between 2 and 3 amps.

2-7