Automatic A/c Heater System: Removal & Installation Nissan Maxima A33

Lubricant Adjusting Procedure for Components Replacement Except Compressor

After replacing any of the following major components, add the correct amount of lubricant to the system.

Amount of lubricant to be added

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1. Before connecting ACR4 to vehicle, check ACR4 gauges. No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
2. Connect ACR4 to vehicle. Confirm refrigerant purity in supply tank using ACR4 and refrigerant identifier. If NG, refer to " «CONTAMINATED REFRIGERANT»(ref-231076-S39973748182006050300000) ", .
3. Confirm refrigerant purity in vehicle A/C system using ACR4 and refrigerant identifier. If NG, refer to " «CONTAMINATED REFRIGERANT»(ref-231076-S39973748182006050300000) ", .
4. Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure lubricant discharged into the recovery/ recycling equipment.
5. Remove the drain plug of the "old"(removed) compressor. Drain the lubricant into a graduated container and record the amount of drained lubricant.
6. Remove the drain plug and drain the lubricant from the "new" compressor into a separate, clean container.
7. Measure an amount of new lubricant installed equal to amount drained from "old" compressor. Add this lubricant to "new" compressor through the suction port opening.
8. Measure an amount of new lubricant equal to the amount recovered during discharging. Add this lubricant to "new" compressor through the suction port opening.
9. Torque the drain plug. 18 - 19 N.m (1.8 -1.9 kg-m, 13 -14 ft-lb)
10. If the liquid tank also needs to be replaced, add an additional 5 ml(0.2 US fl oz, 0.2 lmp fl oz) of lubricant at this time. Do not add this 5 ml(0.2 US fl oz, 0.2 lmp fl oz) of lubricant if only replacing the compressor.

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1. When removing center bolt, hold clutch disc with clutch disc wrench.
2. Remove the clutch disc using the clutch disc puller. Insert the holder's three pins into the holes in the clutch disc. Rotate the holder clockwise to hook it onto the plate. Then, tighten the center bolt to remove the clutch disc. After removing the clutch disc, remove the shims from either the drive shaft or the clutch disc.
3. Remove the snap ring using external snap ring pliers.
4. Pulley removal Position the center pulley puller on the end of the drive shaft, and remove the pulley assembly using any commercially available pulley puller. To prevent the pulley groove from being deformed, the puller claws should be positioned onto the edge of the pulley assembly.
5. Remove the field coil harness clip using a pair of pliers.
6. Remove the snap ring using external snap ring pliers.

INSTALLATION

Installation is basically the reverse order of removal.

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1. Discharge the A/C system. Refer to «DISCHARGING REFRIGERANT»(ref-231076-S28211496172006050300000) .
2. Disconnect the two refrigerant lines from the engine compartment. Cap the A/C lines to prevent moisture from entering the system.
3. Remove the glove box and mating trim. Refer to «INSTRUMENT PANEL ASSEMBLY»(ref-183541-S16275228772005081400000) .
4. Disconnect the thermal amp. connector.
5. Disconnect the intake sensor connector.
6. Disconnect the fan control amp. and blower motor connector.
7. Remove the blower and cooling unit.
8. Separate the blower and cooling unit case, and remove the evaporator.
9. Remove the three bolts and then remove the motor from the blower case.

Installation is basically the reverse order of removal.

Recharge the A/C system. Refer to DISCHARGING REFRIGERANT .

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1. Refer to regarding " «PRECAUTIONS FOR REFRIGERANT CONNECTION»(ref-231076-S38515450842006050300000) ".