TM 10-5410-228-24
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Tools/Test Equipment:
Equipment Conditions:
Shop Equipment, Automotive Maintenance and
Power shut off, power panel and rear control panel
Repair (Item 38, Appendix B)
tagged.
Tool Kit, Service: R22 Refrigeration Unit
ECU doors and covers opened or removed as
(Item 52, Appendix B)
required (see para 2.14.1).
Gloves (Item 16, Appendix B)
R22 refrigerant system recovered (see para 3.9.1).
Goggles (Item 17, Appendix B)
ECU work platform installed (reference
TM 10-5410-228-10)
Materials/Parts:
Hydraulic Fluid (Item 24, Appendix C)
References:
TM 10-5410-228-10
Nitrogen (Item 34, Appendix C)
R22 Refrigerant (Item 40, Appendix C)
Four Lockwashers (Item 18, Appendix E)
Lockwasher (Item 20, Appendix E)
The R22 refrigerant system is pressurized. To prevent injury to personnel, gloves and eye
protection must be worn when working on R22 refrigerant system.
Prevent contact of R22 refrigerant with flame or hot surface. Heat causes R22 refrigerant to
break down and form carbonyl chloride (phosgene), a highly toxic and corrosive gas.
R22 refrigerant must be recovered. Venting R22 refrigerant into the atmosphere is a
violation of public law and subject to severe penalties.
Do not attempt to remove or connect refrigerant servicing equipment while ECV is running.
Failure to observe these warnings can result in injury to personnel.
Cover or plug all openings immediately after removal of R22 refrigerant receiver tank to
prevent contamination.
Flow nitrogen through tube assembly when brazing or unbrazing to prevent damage to
components.
NOTE
This procedure covers the replacement of the R22 refrigerant receiver tank and the liquid
line service valve (horizontal valve).
Remove/disassemble only to the extent necessary to remove or replace defective
assemblies/components. Use standard maintenance shop practices/procedures.
a. Removal (Refer to Figure 3-19)
(1)
Tag and disconnect receiver tank upper tube (1) from `IN' port on R22 refrigerant receiver tank
(2).
(2)
Push receiver tank upper tube (1) slightly to the side, so as to clear `IN' port on R22 refrigerant
receiver tank (2).
