Refrigeration Service Operations
112
System Clean-up
Existing clean up devices such as suction line
filters and compressor oil filters may be used if
they are thoroughly cleaned and new filter
elements are installed. All standard compressor
oils must be removed from clean-up devices to
prevent contamination of R-404A systems.
Dangerous contamination will result if other
refrigerants or standard oils are introduced to
R-404A systems.
NOTE: For additional information on parts and
supplies, consult your local Thermo King dealer
and the Thermo King Tool Catalog.
Refrigerant Recovery
Present systems can be adapted to the recovery of
R-404A but should be dedicated to the recovery of
these refrigerants. Consult the manufacturer of
your recovery equipment for details.
Suction Pressure Regulator
Valve
Removal
1. Pump down the low side and equalize pressure
to slightly positive.
2. Release remaining pressure and unsolder
suction pressure regulator valve from the
accumulator tank and suction tube.
Installation
1. Clean the tubes for soldering.
2. Place the valve in position and solder
connections.
3. Pressurize the low side and check for leaks.
4. If no leaks are found, evacuate the low side.
5. Open the refrigeration valves, and place the
unit in operation. Check the refrigerant charge
and add refrigerant as required.
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...