Diesel Data: Automotive Repair

Disassembly and Reassembly

AIR CONDITIONING UNIT

DISASSEMBLY




1. PTC heater and two way flow heater models only:
REMOVE AIR DUCT (Motor cover)
a. Disconnect the control link.
b. Disconnect the connector clamps.
c. Disconnect the wire harness clamps.
d. Remove the 3 screws.
e. Release the claw and remove the air duct.




2. REMOVE BLOWER RESISTOR
a. Standard heater models only:
Remove the 2 screws and bracket.
b. Disconnect the connector.
c. Remove the 2 screws and blower resistor.




3. REMOVE A/C AMPLIFIER
Using a screwdriver, release the claw and remove the A/C amplifier.




4. REMOVE AMPLIFIER BRACKET
Remove the screw and bracket.




5. Two way flow heater models only:
REMOVE AIR INLET SERVOMOTOR
Remove the 3 screws and air inlet servomotor.




6. REMOVE BLOWER MOTOR
a. Disconnect the connector.
b. Remove the 3 screws and blower motor.




7. REMOVE EXPANSION VALVE
a. Remove the bolt and A/C tube.

Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf)

b. Using a hexagon wrench (5.0 mm, 0.20 in.), remove the 2 bolts and remove the tube and expansion valve.

Torque: 3.4 N.m (35 kgf.cm, 30 in.lbf)

HINT: At the time of reassembly, please refer to the following item.
Lubricate 4 new O-rings with compressor oil and install them to the tube.




8. REMOVE THERMISTOR
a. Disconnect the connector clamp.

b. Using a screwdriver, remove the thermistor.

HINT: Tape the screwdriver tip before use.




c. Release the 2 claws and remove the sensor from bracket plate.




9. REMOVE EVAPORATOR
a. Remove the 3 screws cover
b. Pull out the evaporator.

HINT: At the time of reassembly, please refer to the following item.
If evaporator is replaced, add compressor oil to evaporator. Add 40 cc (1.4 fl.oz.)

Compressor oil: ND-OIL 8 or equivalent

REASSEMBLY
Reassembly is in the reverse order of disassembly.