CHAPTER 3. DIRECT SUPPORT MAINTENANCE

TM 11-5820-695-35

CHAPTER 3

DIRECT SUPPORT MAINTENANCE

Section I. GENERAL

d. Section IV contains the calibration and

3-1. Scope of Direct Support Maintenance

adjustment procedures required to maintain the

AN/GRC-144(V), AN/GRC144(V)3 and AN/GRC-

a. The direct support maintenance procedures

144(V)4 at the direct support maintenance level.

contained in this chapter supplement the organizational

maintenance procedures contained in TM 11-5820-695-

12.

Section I of this chapter identifies the test

e. Section V provides testing procedures to

equipment and materials required to perform direct

determine that repaired equipment is performing

support maintenance, and lists the periodic calibration

satisfactorily for return to users.

checks and tests that must be performed by direct

support maintenance personnel as periodic preventive

3-2. Tools, Test Equipment, and Materials Required

maintenance.

The following chart lists the test equipment, tools and

other items required to troubleshoot, test, repair and

b. Section

contains

direct

support

adjust all AN/GRC-144 radio sets at the direct support

troubleshooting procedures. The procedures are a

maintenance level. Refer to paragraphs 3-53.1 and 3-

continuation of those covered at organizational level to

69c for fabricated tools used to repair and adjust

a higher maintenance level.

Converter-Multiplier CV-3633/GRC-144(V) at the direct

support level.

c. Section III contains repair procedures for

connectors with replaceable contacts or coaxial inserts;

and removal and replacement procedures for piece

parts and nonrepairable assemblies.

Item

National stock No.

References

Socket, Wrench, DHEX 12 PT, 1/4-

5120-00235-5869................................ ...............

inch

Hand Ratchet, Socket Wrench , T

5120-00-221-7966................................ ..............

SIiding

Attachment, Bar Extension Solid..................

5120-00-243-7325................................ ..............

Tool Kit, Electron c Equipment .....................

5180-00-605-0079................................ .............. SC 5180-9-CL-S21

TK-100/G

Tool Kit, Electronic Equipment

5180-00-610-8177................................ .............. SC 5180-91-CL-R07

TK-105/G

Meter Calibration Facilities Kit

6625-00-133-7863................................ ..............

MW-1207/GRC

Counter Electronic, Digital Readout

6625-00-911-6368................................ ..............

HP 5340A

Multimeter TS-352B/U................................ .

6625-00-242-5203................................ .............. TM 11-6625-366-15

Test Set, Radio Frequency Power

6625-00-892-5541................................ .............. TM 11-6625-498-12

AN/USM-161

Oscilloscope OS-261/V ...............................

6625-00-053-3112................................ ..............

Signal Generator AN/uRM-528B .................

6625-00-965-1501................................ .............. TM 11-6625-214-10

Test Set, Electrical Meter TS-656/U .............

6625-00-806-4485................................ .............. TM 11-6625-226-12

Crimping Tool MS 3191-4 with Head

5120-00-856-3732................................ ..............

Assembly W1

Change 6 3-1