Chapter 1. INTRODUCTION - TM-11-6625-564-120009

TM 11-6625-564-12

CHAPTER 1

INTRODUCTION

Section I. GENERAL

1-1. Scope

Equipment. Maintenance forms, records, and

reports which are to be used by maintenance

Note: Maintenance Kit, Electronic Equipment

personnel at all maintenance levels are listed in

MK-731A/ARC-51X is similar to Maintenance Kit

MK-731/ARC-51X. Information in the manual applies to both

and prescribed by TM 38-750.

maintenance kits unless otherwise specified.

b. Report of Packaging and Handling Deficien-

This manual describes Maintenance Kit, Elec-

cies. Fill out and forward DD Form 6 (Report of

tronic Equipment MK-731/ARC-51X and

Packaging and Handling Deficiencies) as pre-

MK-731A/ARC-51X (referred to as the mainte-

scribed in AR 700-58/NAVSUP PUB 378/AFR

nance kit) (fig. l-l) and covers its operation and

71-4/MCO P4030.29, and DSAR 4145.8.

organizational maintenance. The maintenance

c. Discrepancy in Shipment Repont (DISREP)

includes preventive maintenance checks and

(SF 361). Fill out and forward Discrepancy in

services, cleaning, preservation, and replacement

Shipment Report (DISREP) (SF 361) as prescribed

of indicator lamps.

55-38/NAVSUPINST

4610.33/AFM

75-18/MCO P4610.19A, and DSAR 4500.15.

1-2. Indexes of Publications

1-3.1. Reporting of Equipments Publication

a. DA Pam 310-4. Refer to the latest issue of DA

Improvements

Pam 310-4 to determine whether there are new

editions, changes, or additional publications per-

The reporting of errors, omissions, and recom-

taining to the equipment.

mendations for improving this publication by the

b. DA Pam 310-7. Refer to DA Pam 310-7 to

individual user is encouraged. Reports should be

determine whether there are modification work

submitted on DA Form 2028 (Recommended

orders (MWO's) pertaining to the equipment.

Changes to Publications and Blank Forms) and

forwarded direct to Commander, US Army Elec-

1-3. Forms and Records

tronics Command, ATTN: AMSEL-MA-A, Fort

Monmouth, NJ 07703.

a. Reports of Maintenance and Unsatisfactory

Section Il. DESCRIPTION AND DATA

1-4. Purpose and Use

SM-348A/ARC-51X.

(2) Simulator-Test Set, Radio SM-348/ARC-

a. Purpose. Maintenance kit (fig. l-l) provides a

51X or SM-348A/ARC-51X, which is substituted

means for troubleshooting and aligning of Radio

for

Receiver-Transmitter,

the

Radio

Set AN/ARC-51X and Radio Set AN/ARC-51BX.

RT-702/ARC-51X or the Receiver-Transmitter.

The maintenance kit is composed of two major

Radio RT-742/ARC-51BX in the aircraft to facili-

components, as follows:

tate troubleshooting aircraft wiring and as-

(1) Test Set, Radio TS-1962/ARC-51X, which

sociated communication units.

provides facilities for connecting, switching,

b. Use. The maintenance kit is used by the

changing frequency, and monitoring the input

repairman to perform in-aircraft troubleshooting

signals to, or the output signals from, Receiver-

of the aircraft wiring, bench troubleshooting, and

Transmitter, Radio RT-702/ARC-51X, Receiver-

alignment o f t h e R T - 7 0 2 / A R C - 5 1 X , o r

T r a n s m i t t e r , Radio RT-742/ARC-51BX, or

RT-742/ARC-51BX.

Simulator-Test Set, Radio SM-348/ARC-51X and

Change