Chapter 4: DIRECT SUPPORT MAINTENANCE

TM 5-4120-356-14

CHAPTER 4

DIRECT SUPPORT MAINTENANCE

Section I. Repair Parts, Special Tools, TMDE, and Support Equipment

4-1.

Repair parts are listed and illustrated in the repair parts and special tools list

T M 5-4120-356-24P covering direct support maintenance of this equipment.

4-2.

T o o l Kit, Service, Refrigeration Unit, L I N W 5 3 6 2 is the only special tool required

t o perform direct support maintenance on the air conditioner..

Section II. Troubleshooting

4-3.

a. The troubleshooting table (table 4-1) lists the common malfunctions

w h i c h you may find during the operation or maintenance of the air conditioner or its

components. Y o u should perform the test/inspections and corrective actions in the

order l i s t e d .

b . For a specific malfunction, perform procedures listed in troubleshooting

t a b l e 3-2 before performing the procedures listed in table 4-1.

c . T h i s manual can not list all malfunctions which may occur. However, all

t e s t s o r i n s p e c t i o n s a n d c o r r e c t i v e a c t i o n s a r e l i s t e d f o r m o s t common malfunctions.

If malfunction is not listed or is not corrected by listed corrective actions,

notify your supervisor.

T a b l e 4-1. Troubleshooting

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

COMPRESSOR WILL NOT START

Step 1.

Inspect compressor for burnout (paragraph 4-12).

R e p l a c e burned out compressor (paragraph 4-12).

Step 2.

I n s p e c t for burned out fuse(s) (paragraph 3-10f).

Replace burned out fuse(s).

Step 3.

Replace damaged or defective circuit breaker.

Inspect and test thermostat (paragraph 3-10c).

Step 4.

R e p l a c e damaged or defective thermostat.

4-1