Disassembly and Reassembly

Disassembly





1. Remove lower and upper unit cases.
a. Disconnect connectors.
b. Remove four clips.
c. Remove four screws.
d. Remove upper unit case.
e. Remove thermistor with thermistor holder.
f. Remove lower unit case.





2. Remove expansion valve.
a. Disconnect the liquid tube from the inlet fitting of the expansion valve.
b. Remove the packing and heat sensing tube from suction tube of evaporator.





c. Remove the expansion valve.

Inspection

1. Check evaporator fins for blockage. If the fins are clogged, clean them with compressed air.

CAUTION: Never use water to clean the evaporator.

2. Check fittings for cracks or scratches. Repair as necessary.

Assembly

1. Connect the expansion valve to the inlet fitting of the evaporator. Torque the nut.
Torque: 23 Nm (17 ft lb)

NOTE: Be sure that the O-rings are positioned on the tube fitting.





2. Install the holder to the suction tube with heat sensitizing tube.





3. Connect the liquid tube to the inlet fitting of the expansion valve. Torque the nut.
Torque: 13 Nm (10 ft lb)

4. Install lower unit case to the evaporator.
5. Install thermistor to the evaporator.
6. Install upper unit case.
7. Install four screws.
8. Install four clips.
9. Connect connectors.