Section IV. MAINTENANCE OF STATUS AND ALARM MONITOR MODULES

TM 5-6350-262-14/9

NAVELEX 0967-466-9090

TO 31S9-4-32-1

Section IV. MAINTENANCE OF STATUS AND ALARM

MONITOR MODULES

(4) Nuts and screw holes to insure they

7-9.

Scope

are not stripped.

(5) Components for breaks, chips, or

This section contains instructions for

cracks.

corrective maintenance of the alarm and status

(6) Electrical wiring for fraying or other

modules. The extent of maintenance to be performed

damage.

by direct support personnel is governed by the

(7) All

attaching

and

mounting

maintenance allocation chart (app B) and allocation of

hardware for tightness.

parts (app C).

Cleaning. Use a mild solution of warm

The

information

this

section

water and liquid soap to clean housing and cover parts.

supplements that in section III (troubleshooting) and

After cleaning rinse parts with cold water to remove any

provides instructions for module removal and

soap solution and dry thoroughly. Use a soft camel's-

installation, operational checkout, and correcting

hair brush or vacuum cleaner with suitable attachment

malfunctions detected during visual inspection and

to remove accumulated dust from components within

electrical checkout.

the housings.

Repair of the alarm and status modules

Repair Precautions.

Use standard

will be performed either at the installation site or at the

maintenance practices and observe the following

repair facility, depending upon the complexity of the

precautions:

task. On-site repair will normally consist of replacement

(1) Use exact replacement parts; a part

of defective components only. After repair, a complete

with the same electrical value or function but different

functional test shall be performed in accordance with

physical size may cause trouble.

paragraph 7-16.

(2) Soldering irons of less than 50 watts

should be used to solder this equipment. Overheating

7-10.

General Maintenance Instructions

of some parts may cause damage.

In-Process Inspection.

During repair,

7-11. Module Removal

inspect alarm and status modules, after removal of

Remove a status or alarm module from the monitor

parts, for defects not visible when the unit is assembled.

cabinet as follows (fig. 2-1):

Continue the inspection during assembly to insure that

Unlock and open the monitor cabinet

parts are properly assembled and that the unit will meet

door.

performance standards. During the repair process,

Remove the four 6-32 screws that fasten

inspect for the following:

(1) Components for cleanliness.

the module in position.

(2) Painted surfaces for deterioration or

Pull the module from the rack in the

scratches.

monitor cabinet.

(3) Screws for damage or corroded

Loosen the four captive screws that

threads.

secure the data receiver, if used, to the module and

remove the receiver (fig. 7-1).

7-5