Section V MAINTENANCE

TM 11-5820-670-12

Section V MAINTENANCE

Page

Para

Subject

3-22

3-10

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-22

3-11

Maintenance Controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-23

3-12

Operational Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-25

3-13

Repair or Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-26

3-14

Receiver Transmitter RT 823/ARC-131 Replacement . . . . . . . . . . . . . . . . . . . . . .

3-27

3-15

Radio Set Control C-7088/ARC-131 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-28

3-16

Control Unit Knob Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-29

3-17

Control Unit Dial Mask Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-30

3-18

Mounting MT-3664/ARC-131 Replacement . . . . . . . . . . . . . . . . . . . . . . . . .

3-31

3-19

Connector Plate Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-32

3-20

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GENERAL.

3-10.

The performance of the radio set is checked and tested during the operational check in this section. If

a malfunction is found during a step in the operational check, refer to the appropriate troubleshooting

item number in the troubleshooting chart. The faulty part can then be inspected and tested and cor-

rective action taken. Once corrective action has been taken the operational check is then performed

again.

If the appropriate corrective action was taken but the radio set failed the repeat of the operational

check, the radio set is referred to the next higher level of maintenance.

Maintenance procedures are provided for replacing and adjusting the equipment at the organizational

level using authorized tools and replacement parts. Refer to appendix B, Maintenance Allocation

Chart.

MAINTENANCE CONTROLS AND INDICATORS.

3-11.

In addition to operator's controls and indicators on the control unit and the homing indicator, the

controls and indicators on the receiver-transmitter are used by organizational maintenance to perform

the operational check, determining the operational status of the radio set, and to make adjustments to

squelch and also to set transmitter power output level.

3-22