TM 9-4120-408-14
5-26. THERMOEXPANSION VALVE (TEV) MAINTENANCE. (Continued)
NOTE
Seal all joints and seams of insulation with adhesive. Wrap ends of insulation twice around tightly
using tape to secure. Use tape where capillary tube exits insulation to seal opening in insulation.
(4) Install new insulation around suction line tube assembly (1) and TEV sensing bulb (5) from evaporator coil to
outlet connection.
(5) Follow on maintenance:
(a)
Refer to paragraph 5-14 and replace dehydrator.
(b)
Refer to paragraph 5-25 and connect equalizer line tube assembly
(c)
Refer to paragraph 5-18 and install evaporator fan assembly.
(d)
Refer to paragraph 5-5 and charge the air conditioner.
5-27. EVAPORATOR TUBING AND FITTINGS MAINTENANCE
This task covers:
Remove
Install
Repair
INITIAL SETUP:
Tools
Materials/Parts (Continued)
Tool Kit, Service Refrigeration Unit, Appendix
Strap, Tiedown, Appendix E, Item 25
B, Section III, Item 1
Dehydrator, Appendix G, Item 2
Recovery and Recycling Unit, Refrigerant,
Lock Washers, Appendix G, Item 14 (Dehydrator)
Regulator, Nitrogen, Appendix B, Section III,
Preformed Packing, Appendix G, Item 3 (In
Item 9
Line) (Quantity 2)
Wrench, Box and Open End, Appendix B, Section
Preformed Packing, Appendix G, Item 4
III, Item 12
(Out Line) (Quantity 2)
Wrench, Open End, Appendix B, Section
Refer to TM 9-4120-408-24P for part numbers of
III, Item 13
items to be replaced.
Manifold Gage, Charging and Testing, Appendix
Equipment Conditions
B, Section III, Item 16
Air Conditioner shut down, paragraph 2-5.
Leak Detector, Appendix B, Section III,
Item 17
Evaporator Side Panel removed,
Materials/Parts
Evaporator Fan Assembly removed, paragraph
Brazing Alloy, Appendix E, Item 5
5-18.
Brazing Alloy, Appendix E, Item 6
TEV removed, paragraph 5-26.
Tetrafluoroethane, Appendix E, Item 9
General Safety Instructions
Flux, Appendix E, Item 11
Do not work on equipment without
Nitrogen, Appendix E, Item 18
following standard shop safety precautions.
Change 1 5-64
