TM 9-4120-411-14
(13) Remove insulation from tubing as necessary.
(14) Remove and recover system refrigerant per paragraph 5.4.
(15) Purge the refrigerant system per paragraph 5.5 then de-braze two connections (23) per paragraph 5.6 to
remove compressor and reversing valve assembly (1).
(16) Remove four screws (24), lock washers (25), and flat washers (26). Discard lock washers.
WARNING
The synthetic refrigerant oil used in the compressor is mildly caustic. Protect any
exposed skin from possible contact with refrigerant oil. If refrigerant oil contacts
skin, itching or rash-like irritation can result.
(17) Using two people, carefully lift e compressor and reversing valve assembly (1) out of the unit. If available, a
hoist or forklift and appropriate sling should be used to remove the assembly. A jibpole assembly (custom
compressor lifting hoist) can be secured to the unit frame and used to aid in removal of the compressor and
reversing valve assembly. This jibpole assembly is identified in Appendix D, Section I, Additional Authorized
Items List.
(18) Drain refrigerant oil from compressor per paragr aph 5.6.A.
b. Installation. See figure 5-13.
WARNING
The synthetic refrigerant oil used in the compressor is mildly caustic. Protect any
exposed skin from possible contact with refrigerant oil. If refrigerant oil contacts
skin, itching or rash-like irritation can result.
(1) Using two people, carefully place the compressor and reversing valve assembly (1) into the unit. A jibpole
assembly (custom compressor lifting hoist) can be secured to the unit frame and used to aid in installation of
the compressor and reversing valve assembly This jibpole assembly is identified in Appendix D, Section II,
Additional Authorized Items List.
(2) Align mounting holes then secure with four flat washers (26), new lock washers (25), and screws (24).
NOTE
New compressor and reversing valve assembly fittings are protected with caps.
Do not remove these caps until ready to install.
(3) Remove protective caps and install compressor and reversing valve assembly (1) onto tubing ends. Purge
the refrigerant system per paragraph 5.5 and braze connections (23) per paragraph 5.6.
(4) Replace filter-drier per paragraph 5.16.
Change 1 5-38.1
