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Page Title: REFRIGERANT SYSTEM SERVICE - (BRAZING/DEBRAZING)
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TM 9-4120-430-14
DIRECT SUPPORT MAINTENANCE
AIR CONDITIONER, COMPACT, HORIZONTAL
REFRIGERANT SYSTEM SERVICE - (BRAZING/DEBRAZING)
SERVICE (GENERAL INFORMATION, FILLER ALLOY, DEBRAZING, CLEANING
DEBRAZE JOINTS, REASSEMBLY, BRAZING)
INITIAL SETUP
Tools and Special Tools
Tool Kit, General Mechanics (Item 1, Table 2, WP 0067 00)
Tool Kit, Service, Refrigeration Unit (Item 2, WP 0067 00)
Recovery and Recycle Unit, Refrigerant (Item 5, WP 0067 00)
Mask, Air Filtering (Item 29, Table 1, WP 0069 00)
Materials/Parts
Brazing alloy (silver) (Items 5 and 5, Table 1, WP 0069 00)
Nitrogen cylinder (Item 4, Table 1, WP 0069 00)
Brazing flux (Item 7, Table 1, WP 0069 00)
Abrasive cloth (Item 8, Table 1, WP 0069 00)
Rags (Item 9, Table 1, WP 0069 00)
References
WP 0083 00 (MAC)
Personnel Required
One
Equipment Condition
Refrigeration system discharged (WP 0044 00)
Refrigeration system purged (WP 0045 00)
Main power source is disconnected
WARNING
Ensure power source is disconnected.
WARNING
Be sure that the manifold hoses are correctly connected.
BLUE Hose = Low Pressure, RED Hose = High Pressure.
SERVICE
General Information
All tubing in the refrigeration system is copper with a finish that permits thorough cleaning. All interconnecting fittings,
such as elbows, tees, etc., are also copper. The bodies of all valves and all connections on other components are brass.
All joints, except those provided with flare fittings, are made by brazing in accordance with MIL-B-7883, except that
radiographic examination is not required.
0046 00-1

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