Refrigeration Service Operations
141
19. Lubricate the new seal cover o-ring with
compressor oil (P/N 203-516) and install on
the seal cover.
20. Install the seal cover on the body and torque
screws to 100 to 110 in-lb (11.2 to 12.4 N•m).
Do not bump the hard ring into the end of the
shaft during assembly.
21. Install the Woodruff key and drive pulley.
Torque the pulley bolt to 18 to 22 ft-lb (24 to
30 N•m).
.
Compressor Oil Filter Replacement
Thermo King recommends changing the
compressor oil filter when there is a major system
interruption, such as component replacement or
total loss of refrigerant charge. When the oil filter
is changed, Thermo King also recommends
changing the oil.
1. Recover refrigerant. Equalize pressure to
slightly positive.
2. Clean oil filter cover plate area of excess dirt.
3. Remove cover plate and spring, noting the
location of hex studs for proper installation.
4. Scrape gasket off compressor body and cover
plate.
5. Remove oil filter and o-ring.
6. Clean oil filter cavity of any noticeable debris.
7. Lubricate new o-ring with compressor oil.
8. Press oil filter and o-ring over stem in
compressor body until seated.
9. Lubricate new gasket with compressor oil.
10. Install spring, new gasket, and cover plate,
using hex studs and torque head screws,
torquing to 290 to 310 in-lb (34 to 36 N•m).
Be certain to install hex studs in their original
location.
.
Scroll Compressor Oil Change
1. Recover refrigerant. Equalize pressure to
slightly positive.
2. Clean oil drain cap area (bottom and bottom
rear of compressor) of excess dirt.
3. Remove oil drain plug from bottom rear of
compressor to drain oil. Measure amount of
oil drained from compressor.
4. Remove two screws and oil drain cap from
compressor.
5. Scrape gasket from oil drain cap and body.
6. Remove spring, screen and screen cover from
body.
7. Clean screen and cover.
8. Replace screen cover, ensuring notch in cover
is aligned with notch in body.
9. Lubricate new gasket with compressor oil.
10. Replace screen, spring, gasket, cover plate,
and screws.
11. Torque screws to 290 to 310 in-lb (34 to
36 N•m).
12. Lubricate o-ring on SAE plug with
compressor oil.
13. Replace SAE plug in rear bottom of body,
torquing to 100 to 110 in-lb (11.2 to
12.4 N•m).
Parts List (Required)
Seal Cover O-ring See Parts Manual
Use Seal Kit See Parts Manual
Parts List (As Needed)
Torx Screws See Parts Manual
Parts List (Required)
Oil Filter and O-ring See Parts Manual
Gasket See Parts Manual
Parts List (As Needed)
Cover Plate See Parts Manual
Spring See Parts Manual
Hex Studs See Parts Manual
Torx Screws See Parts Manual
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