Refrigeration Maintenance
10-38
3. Push the piston into the piston nut until the end of the rectangular shaft is about even with the top of the piston nut.
4. Make sure the copper washer is in place in the top of the piston nut.
5. Place the threaded shaft of the stepper motor into the rectangular shaft of the piston and turn the piston and piston nut onto
the threaded shaft of the stepper motor.
6. When the threads in the top of piston nut reach the threads on the bottom of the stepper motor, carefully continue to turn the
piston and piston nut onto the stepper motor. Make sure that the copper washer is in place and take care to avoid cross
threading the fine threads on the stepper motor and in the top of the piston nut.
7. Continue to turn the piston and piston nut onto the stepper motor until they are tight. Torque the piston nut and stepper motor
to 37 fT-lb (50 N•m).
Installation of Complete ETV Assembly
1. Clean the tubes for soldering.
2. Place the new complete ETV assembly (and any tubes that were removed) in the same position from which the old one was
removed and install the ETV mounting hardware. The ETV assembly must be installed as shown below relative to the
direction of refrigerant flow from the accumulator to the compressor.
NOTE: Do not disassemble the new ETV to solder it in place.
3. Use a heat sink or wrap the valve body with a wet rag to prevent damage and solder the tubing connections with 95-5 soft
solder.
4. Connect the ETV harness to the main wire harness at the four-pin connector.
5. Pressurize the low side and test for leaks.
6. If no leaks are found, replace the liquid line drier then evacuate the low side.
7. Open the refrigeration valves and place the unit in operation.
8. Test the unit to see that the ETV is properly installed.
1.
Position End of Rectangular Shaft
about Even with Top of Piston Nut
Push Piston into Piston Nut
1.
Use Heat Sink
2.
Direction of Refrigerant Flow
Installing Complete ETV Assembly (Old Style Shown, New Style Similar)
1
1
2
Summary of Contents for T-1000R
Page 14: ...Safety Precautions 2 6 Warning Decals 2e24151g0 ...
Page 34: ...Maintenance Inspection Schedule 4 10 ...
Page 57: ...Unit Description 5 23 Purge Mode UT Series 1 3 4 5 2 ...
Page 67: ...Unit Description 5 33 Zone 1 Cool and Zone 2 Cool UT SPECTRUM Units ...
Page 69: ...Unit Description 5 35 Purge Mode UT SPECTRUM Units ...
Page 71: ...Unit Description 5 37 Zone 1 Cool and Zone 2 Heat UT SPECTRUM Units ...
Page 72: ...Unit Description 5 38 ...
Page 74: ...Diesel Electric Menu 6 28 Adjust Brightness 6 29 Time 6 30 ...
Page 120: ...Operating Instructions Standard HMI 7 18 ...
Page 152: ...Engine Maintenance 9 14 T Series Fuel and Oil System Components TK 376 ...
Page 154: ...Engine Maintenance 9 16 T Series Fuel and Oil System Components TK 270 ...
Page 156: ...Engine Maintenance 9 18 UT Series Fuel System Components AMA768 ...
Page 172: ...Engine Maintenance 9 34 T Series Engine Mounting Components for 2 Cylinder Engine ...
Page 184: ...Engine Maintenance 9 46 ...
Page 238: ...Refrigeration Maintenance 10 54 ...
Page 246: ...Clutch Maintenance 11 8 ...
Page 258: ...Structural Maintenance 12 12 ...
Page 264: ...Mechanical Diagnosis 13 6 ...
Page 265: ...14 Electric Standby Diagnosis ...
Page 268: ...Electric Standby Diagnosis 14 4 ...
Page 269: ...15 Refrigeration System Diagnosis ...
Page 272: ...Refrigeration System Diagnosis 15 4 ...
Page 280: ...Remote Evaporators 16 8 ...