Chapter 5: DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS

TM 5-4120-369-14

CHAPTER 5

DIRECT SUPPORT AND GENERAL SUPPORT

MAINTENANCE INSTRUCTIONS

Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT

TOOLS AND EQUIPMENT.

No Tools or equipment are issued with the air conditioner.

SPECIAL TOOLS AND EQUIPMENT.

A Recovery/Recycling Unit is required to discharge refrigerant from the refrigeration system.

MAINTENANCE REPAIR PARTS.

Repair parts and equipment are listed and illustrated in the repair parts and special tool list covering direct and general

support maintenance for this equipment. (See TM 5-4120-369-24 P.)

Prior to removing any refrigerant system component, be sure sys-

tem is properly charged, and retest defective component.

Section 11. TROUBLESHOOTING

GENERAL.

This section provides information useful in diagnosing and correcting unsatisfactory operation or failure of the air condi-

tioner or any of its components. Electrical schematic and wiring diagrams shown in FO-1 and FO-2 will be helpful for

checking electrical circuits. A refrigerant flow diagram is shown in figure 5-1. System pressure test instructions are in

paragraph 6-2. Troubleshooting procedures for Direct and General Support maintenance are listed in table 5-1. Each trouble

system or malfunction stated is followed by a step-by-step procedure for inspecting and testing the system to determine the

specific cause of fault or failure. The corrective action recommended follows the determination of probable cause.