Air Conditioning Unit

DISASSEMBLY

1. REMOVE MODE DAMPER SERVO SUB-ASSEMBLY




a. Remove the 3 screws and air outlet control servomotor (mode damper servo sub-assembly).

2. REMOVE HEATER RADIATOR UNIT SUBASSEMBLY




a. Remove the screw and plate.
b. Release the 2 fitting claws and remove the piping clamp.
c. Remove the heater radiator unit sub-assembly.

NOTE: Prepare a drain pan or cloth for when the cooling water leaks.

3. REMOVE AIRMIX DAMPER SERVO SUB-ASSEMBLY




a. Remove the 3 screws and airmix control servomotor (airmix damper servo sub-assembly).

4. REMOVE AIR CONDITIONING TUBE ASSEMBLY




a. Remove the packing.

NOTE: Be careful not to break the packing as it is to be reused.




b. Using a hexagon wrench 4 mm (0.16 in.), remove the 2 hexagon bolts and air conditioning tube assembly.
c. Remove the 2 O-rings from the air conditioning tube assembly.

5. REMOVE COOLER EXPANSION VALVE




a. Remove the cooler expansion valve from the cooler evaporator sub-assembly No.1.

6. REMOVE COOLER THERMISTOR NO.1




a. Release the 2 fitting claws and remove the evaporator temperature sensor (cooler thermistor No.1).

7. REMOVE COOLER EVAPORATOR SUB-ASSEMBLY NO.1




a. Remove the 12 screws and heater case LH.




b. Remove the cooler evaporator sub-assembly No.1 from the heater case RH.
c. Remove the 2 O-rings from the cooler evaporator sub-assembly No.1.

REASSEMBLY

1. INSTALL COOLER EVAPORATOR SUB-ASSEMBLY NO.1




a. Sufficiently apply compressor oil to the 2 new Orings and fitting surface of the cooler expansion valve.

Compressor oil: ND-OIL 8 or equivalent

b. Install the 2 O-rings on the cooler evaporator subassembly No.1.




c. Install the cooler evaporator sub-assembly No.1 to the heater case RH.
d. Install the heater case LH with the 12 screws.

2. INSTALL COOLER EXPANSION VALVE




a. Install the cooler expansion valve to the cooler evaporator No.1.

3. INSTALL AIR CONDITIONING TUBE ASSEMBLY




a. Sufficiently apply compressor oil to the 2 new Orings and fitting surface of the air conditioning tube assembly.

Compressor oil: ND-OIL 8 or equivalent

b. Install the 2 O-rings on the air conditioning tube assembly.
c. Using a hexagon wrench 4 mm (0.16 in.), install the air conditioner tube assembly with the 2 hexagon bolts.

Torque: 3.5 N.m (35 kgf.cm, 30 in.lbf)




d. Install the packing.

HINT: Securely attach so that a gap in the packing will not occur.