BRAZING/DEBRAZING PROCEDURES - TM-9-4120-423-14-P0333

TM9 4120-423-14&P

BRAZING/DEBRAZING PROCEDURES

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THIS WORK PACKAGE COVERS:

Disassembly

Cleaning

Assembly

Tools and Special Tools

Brazing Torch

Materials/Parts

Brazing Alloy, Silver

QQ-B-564, grade 0, I, or II

Brazing Alloy, Silver

QQ-B-564, grade III

Brazing Flux

O-F-499, Type B

Abrasive Cloth

Rags

Personnel Required

Direct Support Technician

Equipment Conditions

Air conditioner removed from shelter, if

necessary

Refrigerant R-22 system discharged (See

Refrigerant R-22 system purged (See

DISASSEMBLY

General. All tubing in the refrigeration system is seamless copper with a bright internal finish that

permits thorough cleaning and prevents entrapment of moisture or other impurities. Rigid grade copper

is used for straight sections and soft grade for sections that must be bent. All interconnecting fittings,

such as elbows, tees, etc., are also copper. The bodies of all valves and all connections on other

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