Last Modified: 4-30-2014 6.6 A Doc ID: RM0000018PU001X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: AIR CONDITIONING: REAR COOLING UNIT: DISASSEMBLY; 2006 MY LX470 [05/2005 -        ]

DISASSEMBLY

1. REMOVE AIR CONDITIONING AMPLIFIER

(a) Remove the 2 screws and amplifier.

2. REMOVE POWER TRANSISTOR

(a) Disconnect the connector.

(b) Remove the 2 screws and power transistor.

3. REMOVE COOLING UNIT CASE

(a) Remove the wire harness.

(b) Remove the 11 screws, 3 holding springs and separate the cooling unit cases.

(c) Disconnect the connector.

(d) Remove the blower case.

4. REMOVE BLOWER MOTOR

(a) Remove the 3 screws and blower motor.

5. REMOVE EVAPORATOR

(a) Disconnect the 2 connector clamps.

(b) Remove the 10 screws and 2 holding springs, and separate the cooling unit cases.

(c) Remove the screw and piping clamp.

(d) Loosen the 2 nuts and remove the tube and accessory.

Torque:

Liquid line -

14 N·m {140 kgf·cm, 10ft·lbf}

Suction line -

32 N·m {330 kgf·cm, 24ft·lbf}

NOTICE:

Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering them.

HINT:

At the time of reassembly, lubricate 2 new O-rings with compressor oil and install them to the tubes.

(e) Remove the evaporator.

HINT:

At the time of reassembly, if the evaporator was replaced, add compressor oil to the new evaporator.

Add oil amount:

40 cc (1.4 fl.oz.)

Compressor oil:

ND-OIL 8 or equivalent

6. REMOVE COOLER THERMISTOR

(a) Remove the cooler thermistor from the evaporator.

7. REMOVE EXPANSION VALVE

(a) Using a 5 mm hexagon wrench, remove the 2 hexagon bolts and separate the expansion valve and evaporator.

Torque:

5.4 N·m {55 kgf·cm, 48in·lbf}

HINT:

At the time of reassembly, lubricate 4 new O-rings with compressor oil and install them to the tubes.