Cooling Unit: Disassembly

Remove A/C Amplifier
Remove Wire Harness
Manual A/C:
1. Remove Blower Resistor
  1. Remove the 2 screws and blower resistor.
Auto A/C:
1. Remove Blower Linear Controller
  1. Remove the 2 screws and blower linear controller.
Separate Upper And Lower Unit Cases
1. Using a knife, cut off the each packing.
2. Remove the 3 clips and 3 screws.
3. Separate the upper and lower unit case.
Remove Evaporator From Lower Unit Case
NOTE:
At the time of reassembly, if evaporator is replaced, add compressor oil to compressor.
1. Add 40 - 50 cc (1.4 -1.7 fl.oz.)
2. Compressor oil: ND-OIL 8 or equivalent
Remove Thermistor
1. Disconnect the connector clamp.
2. Pull out the thermistor from evaporator.
  
  Fig 2: Removing Thermistor From Evaporator
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Expansion Valve

Fig 3: Removing Expansion Valve
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a hexagon wrench (5.0 mm, 0.20 in.), remove the 2 bolts and separate the expansion valve and evaporator and tubes.
1. Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf)
NOTE: At the time of reassembly, lubricate 4 new O-rings with compressor oil and install the tubes and valve.