CHAPTER 7 DIRECT SUPPORT (INTERMEDIATE) MAINTENANCE INSTRUCTIONS

TM 5-6350-262-14/9

NAVELEX 0967-466-9090

TO 31S9-4-32-1

CHAPTER 7

DIRECT SUPPORT (INTERMEDIATE)

MAINTENANCE INSTRUCTIONS

Section I. GENERAL

or status module. However, the performance standards

7-1.

Scope

contained in section V may be used at periodic intervals

This chapter provides specific instructions for all direct

to check the ability of the alarm or status modules to

support maintenance functions as authorized by the

perform their intended missions.

maintenance allocation chart (app B). Included are

descriptions of controls used by direct support

7-3.

Direct Support Controls

maintenance personnel, a list of test equipment required

The only controls required by direct support

for maintenance, troubleshooting and repair instructions,

maintenance personnel are the operator controls located

and performance standards.

on the front panel (para. 3-1). The functions of

reset/ack switch S1 (4, figure C-1 and 20, figure C-2)

7-2.

Purpose

and lamp test switch S2 (14, figure C-1 and 20, figure C-

These maintenance instructions are primarily for use

2) are described in paragraph 3-2.

following isolation of a J-SIIDS malfunction to the alarm

Section II. TOOLS AND EQUIPMENT

support maintenance of the alarm and status modules.

7-4.

Standard Too[l and Equipment

Paragraphs 5-1 and 7-16 identify standard tools and test

7-6.

Test Equipment

equipment required at direct support maintenance level.

The test equipment required to troubleshoot faulty

Obtain other commonly used tools and equipment

equipment and to verify the performance standards of

having general application to the alarm and status

repaired equipment is listed in paragraph 7-16. See

modules maintenance instructions contained in this

figure 7-4 for assembly of the field manufactured test

chapter, using authorized procedures.

fixture.

7-5.

Special Tools and Equipment

No special tools and equipment are required for direct

Section III. TROUBLESHOOTING

module its probable cause can be determined through

7-7.

Visual Inspection

use of charts 7-1 and 7-2. The charts assume the

Before troubleshooting the alarm and status modules,

module has been removed from the system and is

make a thorough visual inspection.

Check wiring

properly installed and interconnected with the test

insulation and components for evidence of failure.

equipment. After isolation of a malfunction to a

Check housing interior for presence of moisture and

component within the module refer to paragraphs 7-13

other foreign matter.

and 7-14 for disassembly procedures.

7-8.

Troubleshooting

When a malfunction is observed in the alarm or status

7-1