Chapter 3. DIRECT SUPPORT MAINTENANCE INSTRUCTIONS

TM 11-6130-392-34

CHAPTER 3

DIRECT SUPPORT MAINTENANCE INSTRUCTIONS

Section I. General

(4) Display circuit assembly, or individ-

3-1. Scope

ual display modules in the assembly (A13).

This chapter contains instructions for fault isolation

b. Power cable (W1).

testing, component replacement procedures, and testing

of the equipment after component replacement for

direct support (DS) maintenance of Battery Charger

PP-7286/U. Illustrations are provided, and tools,

c. Memory battery (B1), lamp (DS1), and fuses (F1

equipment, or materials are specified for batter charger

through F6). Refer to TM 11-6130-392-12, operator and

DS maintenance. Direct support maintenance personnel

organizational maintenance manual, for instructions.

will perform tests and replacements only. Repair of

replaced (faulty) components is limited and will be per-

formed at general support and depot maintenance

levels. This chapter also contains instructions for com-

Direct support personnel are authorized to replace the

ponent removal and replacement for DS maintenance of

following components of the battery charging tray

Battery Charging Tray Assembly MX-10154/U.

assembly (fig. 2-1.1):

a. Connector (J1 J6).

3-2. Direct Support Tests

b. Switch (SW1 SW5).

Direct support personnel will perform tests, as

c. Cover

follows:

d. Banana plug (black).

a. Make voltage, resistance, and waveform

measurements to isolate faulty printed wiring/

e. Banana plug (red).

board assemblies.

b. Test battery charger performance, after

f . Insulation sleeving.

replacement of faulty components.

g. Cable assembly.

3-3. Direct Support Replacements

h. Cable bushing.

Direct support personnel are authorized to replace the

Machine screw.

following components of the battery charger (fig. 2-2):

j . Threaded insert.

a. Printed wiring/board assemblies:

k. Battery holder.

Charging modules (A6, A7, A8, A9,

(1)

Identification plate.

and A10).

m. Electrical cable.

Power supply assembly (A11).

(2)

n. Electrical wire (red, black, white).

(3)

Timing circuit assembly (A12).

Change 1 3-1