Chapter 4. DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS

CHAPTER 4

DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS

Section I. GENERAL

supplies normally available

organizational

4-1. Scope

maintenance personnel.

These instructions are for direct and general sup-

4-2. Forms and Records

port maintenance personnel. They contain infor-

mation on equipment maintenance that is beyond

Refer to paragraph 1-2 for forms and records ap-

plicable to this equipment.

the scope of the tools, equipment, personnel, or

Section Il. DESCRIPTION AND DATA

4-4. Tabulated Data

4-3. Description

The tabulated data applicable to the air condi-

For a complete description of the air conditioner

tioner is referenced in paragraph 1-4.

refer to paragraph 1-3.

Section Ill. REPAIR PARTS, SPECIAL TOOLS, AND EQUIPMENT

parts

are

listed

and

illustrated

4-5. Special Tools and Equipment

5-4120-222-24P.

No special tools or equipment are required to per-

form direct and general support maintenance on

4-7. Specially Designed (Fabricated) Tools and

the air conditioner.

Equipment

4-6. Direct and General Support Maintenance

No specially designed (fabricated) tools or equip

Repair Parts

ment are required to perform direct or general

support maintenance on the air conditioner.

Direct and general support maintenance repair

Section IV. TROUBLESHOOTING

4-9. Troubleshooting Procedure

4-8. General

This section provides information useful to direct

Malfunctions which may occur are listed in table

4-1. Each malfunction stated is followed by a list

and general support maintenance personnel in

of probable causes of the trouble. The corrective

diagnosing and correcting unsatisfactory opera-

action recommended is described opposite the

tion or failure of the air conditioner.

probable cause.

Table

4-1.

Troubleshooting

Malfunction

Probable cause

Corrective

action

Compressor

fails

start---------- a.

a. Replace (para 5-12).

Circuit breaker defective----------------------------------------------------

Compressor defective--------------------------------------------------------

b. Replace (para 5-30).

Wiring and wiring harness defective-------------------------------------

c. Replace (para 5-19).

Temperature control defective----------------------------------------------

d. Replace (para 5-9).

AGO 20053A