ARMY TM 9-4120-380-14
NAVY EE-000-BA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-21
CHAPTER 5
DIRECT SUPPORT MAINTENANCE
Section I. REPAIR PARTS, SPECIAL TOOLS, TMDE AND SUPPORT EQUIPMENT
5.1 COMMON TOOLS AND EQUIPMENT. For authorized common tools and equipment, refer to the Modified Table
of Organization and Equipment (MTOE) applicable to your unit.
5.2 SPECIAL TOOLS. TMDE, AND SUPPORT EQUIPMENT.
No special tools are required for Direct Support
Maintenance of the air conditioner.
5.3 REPAIR PARTS . Repair parts are listed and illustrated in the Repair Parts and Special Tools List (RPSTL) TM 9-
4120-3B0-24P, covering Unit Direct Support, and General Support Maintenance for this equipment.
Section II. DIRECT SUPPORT MAINTENANCE PROCEDURES
Paragraph
Title
Page
General. .................................................................................................................................. 5-2
Panels and Information Plates.. ............................................................................................... 5-2
Evaporator Motor (B2) . .......................................................................................................... 5-4
Condenser Motor (B3) ............................................................................................................ 5-7
5.8
Refrigeration System, General Repairs................................................................................. 5-10
Service Manifold Installation ................................................................................................. 5-11
Discharging Refrigerant System ........................................................................................... 5-14
Purging Refrigerant System .................................................................................................. 5-16
Brazing/Debrazing Procedures ............................................................................................. 5-18
Leak Testing Refrigerant System .......................................................................................... 5-20
Evacuating Refrigerant System ............................................................................................ 5-22
5.15
Charging Refrigerant System ................................................................................................ 5-25
Refrigerant Pressure Check . ................................................................................................ 5-29
5.17
Discharging Compressor ....................................................................................................... 5-34
Purging Compressor ............................................................................................................. 5-36
Pump Down .......................................................................................................................... 5-38
Start Up After Repairs ........................................................................................................... 5-40
High Refrigerant Pressure Switch (S5) .................................................................................. 5-42
Low Refrigerant Pressure Switch (S4) ................................................................................... 5-45
Drier Filter (F1) (Dehydrator) ................................................................................................ 5-48
Sight Refrigerant Glass ......................................................................................................... 5-50
Hot Gas Bypass Service Valve (V7) ..................................................................................... 5-52
5-1