Section IV. TROUBLESHOOTING (ORGANIZATIONAL)

TM 5-4310-340-24

Section IV. TROUBLESHOOTING (ORGANIZATIONAL)

and principles of operation apply in troubleshooting the

2-8. General

equipment. Use all senses and methods to observe and to

a. This section contains troubleshooting information for

locate troubles. To obtain the maximum number of observed

locating and correcting some of the troubles that may develop

symptoms of trouble, question the vehicle crew about the

in the compressor. The information is arranged to provide the

conditions under which the symptoms occurred. The greater

mechanic with a flexible and logical step-by-step method of

the number of symptoms of troubles that can be evaluated,

troubleshooting. Once a malfunction is recognized, the

and the more detailed the knowledge of the conditions under

mechanic is guided in solving the maintenance problem by

which they occurred, the easier it will be to isolate the defect.

the use of troubleshooting routines or by the combined use of

troubleshooting routines and supporting information.

c. When troubleshooting, it is important to note that the

compressor is a part of a system which consists of associated

b. This manual cannot cover all possible troubles

components and a compressor drive. Trouble in the system

which may occur under the many operating conditions. If a

may be caused by other components and not the compressor.

specific trouble, test, and remedy is not covered, proceed to

See TM 9-2350-232-20-2 for troubleshooting all components

isolate the system in which the trouble occurs and then locate

of the system except the compressor.

the defective component. Standard automotive theories

Chart 2-1. Troubleshooting-Organizational

Malfunction

Probable cause

Corrective Action

1. Compressor overheats

a. Dirty coolers.

a. Clean coolers.

b. Air circulation obstructed.

b. Remove obstruction.

c. Low oil level.

c. Add oil to full mark on dipstick

(LO 9-2350-232-12)

d. Defective compressor

d. Notify direct support main-

tenance

2. Excessive oil consumption

a. Leaking tube or fitting

a. Check tubes and fittings for leaks.

Tighten as required (para 1-.)I. If

leak cannot be stopped. notify

direct support maintenance.

b. Defective compressor

b. Notify direct support main-

tenance.

3. Relief valve activated

a. Defective relief valve.

a. Notify direct support maintenance.

b. Defective compressor.

b. Notify direct support main-

tenance.

4. Excessive vibration

a. Loose compressor

a. Tighten screws (TM 9-2350-232-

screws

20) .

b. Defective compressor

b. Notify direct support main-

tenance.

5. Compressor will not turn

a. Defective spline.

a. Notify direct support maintenance.

b. Defective compressor internal

b. Notify direct support main-

components

tenance.

6. Insufficient air pressure

a. Loose cooler connection.

a. Tighten connection.

b. Defective compressor.

b. Notify direct support main-

tenance.

Section V. MAINTENANCE OF COMPRESSOR ASSEMBLY

ponents allocated to organizational maintenance.

2-9. General

During installation of pipe threaded fittings use

The information in this section provides

teflon tape per MIL-T-27730 on fitting threads.

organizational maintenance personnel with the

Lubricate threads and packings with oil per MIL-

necessary information to maintain those com-

2-3