AIR CONDITIONER SYSTEM LEAK TEST - TM-9-2320-303-24-11037

TM 9-2320-303-24-1

AIR CONDITIONER SYSTEM LEAK TEST

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THIS WORK PACKAGE COVERS

Inspection, Test

INITIAL SETUP

Maintenance Level

Tools and Special Tools - Continued

Unit

Gloves, chemical (Item 27, WP 0313 00)

Tools and Special Tools

Goggles (Item 30, WP 0313 00)

Tool kit, general mechanic's (Item 102, WP 0313

Leak detector, refrigerant (Item 54, WP 0313 00)

INSPECTION

WARNING

Liquid refrigerant, when exposed to air, quickly evaporates and will freeze skin or eye tissue. Use care

to prevent refrigerant from touching your skin or eyes. Serious injury or blindness may result if you

come in contact with liquid refrigerant.

Refrigerant R-134a air conditioning systems should not be pressure tested or leak tested with com-

pressed air. Combustible mixtures of air and R-134a may form, resulting in fire or explosion, which

could cause personal injury.

NOTE

Refrigerant is odorless. As a result, all of it may leak away and not be noticed until system stops cool-

ing. All vehicle refrigerant systems lose some refrigerant depending on the condition of system. Higher

loss rates signal a need to locate and repair leaks.

Leaks are most often found at the compressor hose connections and at various fittings and joints in sys-

tem. If unapproved replacement hoses are installed, refrigerant can be lost through hose permeation.

Visually inspect refrigerant system for air conditioning lubricant leakage and corrosion and damage to lines, hoses, and

other components.

Visually inspect lowest points of fittings, hoses, and lines for indication of lubricant leakage.

TEST

Use a leak detector in accordance with the manufacturer's instruction manual and check for refrigerant leakage at hose

connections, fittings, and areas where leakage might occur. If leaks are detected, notify Direct Support Maintenance.

END OF WORK PACKAGE

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