Section II. BODY AND CHASSIS ACCESSORY ITEMS MAINTENANCE PROCEDURES

TM 10-3930-673-34

Section II. BODY AND CHASSIS ACCESSORY ITEMS MAINTENANCE

PROCEDURES

15-3. AIR CONDITIONING SYSTEM SERVICING

This Task Covers:

a. Manifold Gage Set

e. Charging System

Installation

b. Manifold Gage Set Removal

d. Evacuating System

f. Checking/Adding Refrigerant

Oil

INITIAL SETUP

Equipment Condition

Tools and Special Tools

Engine shut down and cooled

Tool Kit, General Mechanic's: Automotive

(TM 10-3930-673-10)

Wheels chocked

Vacuum Pump

Compressor Tool Kit (Item 2, Appendix D)

Materials/Parts

Lubricating Oil (Item 27, Appendix B)

Test Equipment

Refrigerant R-134a (Item 36, Appendix B)

Manifold Gage Set (Item 11, Appendix D)

WARNING

Always wear eye protection around refrigerant, or when servicing the air-conditioning

system. Injury will result if refrigerant comes in contact with eyes.

Exercise extreme care when handling refrigerant, direct contact between refrigerant

and skin may cause frostbite.

Never smoke in areas where refrigerant is used or stored. Injury to personnel may

result.

Ensure adequate ventilation whenever refrigerant is being discharged. Injury to

personnel may result if used in a confined area.

Personnel with a history of cardiac rhythm abnormalities should be made aware of

potential aggravation as a result of exposure to refrigerant. Failure to do so may

result in injury to personnel.

Do not attempt to connect servicing equipment while engine is running. Injury to

personnel or damage to equipment may result.

NOTE

Whenever any air conditioning vapor system component needs replacement, the system

must be discharged, flushed, and a new dryer bottle installed.