Refrigeration Service Operations
102
14. Remove the oil filter cover.
15. Measure oil removed and add an equal amount
or add 40 oz (1.2l) of compressor oil (see Tool
Catalog), by pouring oil into the oil filter
cavity.
16. Replace oil filter cover.
High Temperature Cutout Switch
Change Procedure
NOTE: Thermo King recommends changing the
high temperature cutout switch whenever the
insulation on the leads has been broken or there
is other reason to suspect a defective switch.
The steps for changing the high temperature
cutout switch are as follows:
1. Cut through silicone sealant surrounding
plastic cap.
2. Pry plastic cap out of top cap.
3. Remove switch by pulling it out of top cap
well.
4. Clean all debris out of top cap well and off of
top cap surface.
5. Apply 0.25 to 0.50 cubic centimeters of
dielectric compound into thermal well.
6. Apply 0.25 to 0.50 cubic centimeters of
dielectric compound between switch element
and kapton sleeve.
7. Fold kapton sleeve over, fully protecting
switch.
8. Firmly press switch into thermal well by
rubber boot.
9. Completely fill remaining void in thermal well
with silicone to protect against water
infiltration.
10. Press new protective plastic cap in place with
wire channel pointed down. Cap will snap into
place when in proper location.
Liquid Injection Fitting Change
Procedure
The steps for changing the liquid injection fitting
are as follows:
1. Recover refrigerant. Equalize pressure to
slightly positive.
2. Clean compressor body in area of liquid
injection fitting.
3. Sweat tubing out of liquid injection fitting.
4. Visually inspect screen in liquid injection
fitting.
5. If plugged, carefully remove liquid injection
fitting from compressor body.
6. Install new o-ring on new liquid injection
fitting.
7. Lubricate new o-ring with Mobil
TM
oil (see
Tool Catalog).
8. Carefully thread new liquid injection fitting
through compressor body into steel block on
the inside. Make sure the fitting is not
cross-threaded in the steel block.
9. Torque liquid injection fitting to 100 to
120 in-lb (11.2 to 13.6 N•m).
10. Re-attach tubing to liquid injection fitting.
11. Pressurize the unit and check for leaks.
12. Evacuate the unit and recharge system.
Other Parts Which May Be Used (As Needed)
Are:
Torx Head Screws
See Tool Catalog
Oil Drain Cap
See Tool Catalog
Spring
See Tool Catalog
Screen
See Tool Catalog
Screen Cover
See Tool Catalog
Parts List (As Needed)
Switch Assembly
See Tool Catalog
Plastic Cap
See Tool Catalog
Dielectric Compound
See Tool Catalog
Silicone Sealant
N/A
Parts List (As Needed)
O-ring
See Tool Catalog
Liquid Injection Fitting
See Tool Catalog
Summary of Contents for 919180
Page 4: ...4...
Page 10: ...Table of Contents 10...
Page 32: ...Unit Description 32 Unit Photographs Figure 3 Front View Figure 4 Back View AJA584 AJA585...
Page 33: ...Unit Description 33 Figure 5 Left Side View Figure 6 Right Side View AJA586 AJA58...
Page 35: ...Unit Description 35 Figure 8 North American Power Receptacle Box AJA58...
Page 38: ...Unit Description 38...
Page 58: ...Electrical Maintenance 58...
Page 66: ...Engine Maintenance 66 Figure 37 Fuel and Oil System Components...
Page 84: ...Engine Maintenance 84...
Page 96: ...Refrigeration Maintenance 96...
Page 118: ...Hilliard Clutch Maintenance 118...
Page 136: ...Cycle Diagrams 136...
Page 140: ...Wiring and Schematic Diagrams Index 140...
Page 141: ...141 Truck S Model SR 30 Schematic Diagram Page 1 of 2...
Page 142: ...142 Truck S Model SR 30 Schematic Diagram Page 2 of 2...
Page 143: ...143 Truck S Model 30 Units with P T Wiring Diagram Page 1 of 2...
Page 144: ...144 Truck S Model 30 Units with P T Wiring Diagram Page 2 of 2...
Page 145: ...145 Truck S Model 50 Schematic Diagram Page 1 of 2...
Page 146: ...146 Truck S Model 50 Schematic Diagram Page 2 of 2...
Page 147: ...147 Truck S Model 50 Units with P T Wiring Diagram Page 1 of 2...
Page 148: ...148 Truck S Model 50 Units with P T Wiring Diagram Page 2 of 2...