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TM-5-4120-347-14 Air Conditioner Horizontal Compact 9 000 BTU/HR 208 Volt 3 Phase 60 Hertz Manual
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Section II. REPAIRS AND REPLACEMENT OF MECHANICAL ITEMS.
TM5-4120-347-14
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section/Paragraph
Repair Parts, Special Tools, TMDE, and
Refrigeration System Troubleshooting . . . ...5-15
Support Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
Overheating Checks . . . . . . . . . . . . . . . . . . . . ...5-16
Refrigerant Pressure Check. . . . . . . . . . . . . ...5-17
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Repairs and Replacement of Mechanical Items. . . ll
Evaporator Coil . . . . . . . . . . . . . . . . . . . . . . . . ...5-18
Assistance to Organizational Maintenance . . . 5-2
Expansion Valve (Primary) . . . . . . . . . . . . . . ...5-19
Authorized Repair/Replacement Procedures . . 5-3
Expansion Valve (Quench) . . . . . . . . . . . . . . ...5-20
Fabric Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-4
Solenoid Valves . . . . . . . . . . . . . . . . . . . . . . . . ...5-21
Top Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-5
Pressure Regulator . . . . . . . . . . . . . . . . . . . . . ...5-22
Screens, Guards and Louvers . . . . . . . . . . . . ...5-6
Actuating Cylinder . . . . . . . . . . . . . . . . . . . . . ...5-23
Electric Motor Repair . . . . . . . . . . . . . . . . . . ...5-7
Pressure Switches . . . . . . . . . . . . . . . . . . . . . ...5-24
Refrigeration System Repairs General . . . . ...5-8
Charging (Service) Valves . . . . . . . . . . . . . . ...5-25
Discharging the Refrigerant System . . . . . . ...5-9
Pressure Relief Valve . . . . . . . . . . . . . . . . . . . ...5-26
Purging the Refrigerant System . . . . . . . . . ...
Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . ...5-27
Brazing/Debrazing Procedures. . . . . . . . . . ...5-11
Dehydrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-28
Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-12
Liquid Indicator (Sight Glass) . . . . . . . . . . . ...5-29
Evacuating the Refrigerant System . . . . . . ...5-13
Compressor . . . . . . . . . . . . . . . . . . . . . . . ......5-30
Charging the Refrigerant System . . . . . . . . ...5-14
Tubing and Fittings . . . . . . . . . . . . . . . . . . . . ...5-31
Section I.
REPAIR PARTS, SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT
GENERAL
a. Repair parts are listed and illustrated in TM5-4120-347-24P. No special tools are required for
maintenance of the equipment. Test, maintenance and diagnostic equipment (TMDE), and support equipment
include standard electrical test equipment found in any organizational maintenance electric shop.
b. For authorized common tools and equipment refer to the Modified Table of Organization and Equipment
(MTOE) applicable to your unit.
c. Tool Kit, Service, Refrigeration Unit, NSN 5180-00-596-1474, contains hand tools and equipment used for
air conditioner maintenance. The following common items not contained in the refrigeration unit tool kit are
also required for air conditioner maintenance.
Description
National Stock Number
Brush, Bristle
Brush, Wire
Bucket
Heat Gun
Pliers, Long Round Nose
5120-00-268-3579
Rubber Gloves
Safety Goggles

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