Removal and Installation
ELECTRIC COMPRESSOR
Removal and Installation
WARNING:
- Because hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.
- Be sure to remove the service plug in order to shut off the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.
- Be sure to put the removed service plug in your pocket and carry it with you so that another person does not accidentally connect it while work is in progress.
- Be sure to wear insulating protective equipments consisting of glove, shoes and glasses/face shield before beginning work on the high voltage system.
- Clearly identify the persons responsible for high voltage work and ensure that other persons do not touch the vehicle. When not working, cover high voltage parts with an insulating cover sheet or similar item to prevent other persons from contacting them.
- High Voltage Precautions.
CAUTION:
- There is the possibility of a malfunction occurring if the vehicle is changed to READY status while the service plug is removed. Therefore do not change the vehicle to READY status unless instructed to do so in the Service Manual.
- Perform lubricant return operation before each refrigeration system disassembly. However, if a large amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to HA23, "Perform Lubricant Return Operation".
REMOVAL
WARNING:
Shut off high voltage circuit. How to Cut Off High Voltage.
1.Check voltage in high voltage circuit. (Check that condenser are discharged.)
a.Remove trunk finisher front. Trunk Finisher Front.
b.Remove harness cover (1).
WARNING:
To prevent shock hazards, be sure to wear protective gear.
c.Measure voltage between high voltage harness terminals.
DANGER:
Touching high voltage components without using the appropriate protective equipment will cause electrocution.
Standard: 5 V or less
CAUTION:
For voltage measurements, use a tester which can measure to 500 V or higher.
2.Use a refrigerant collecting equipment (for HFC 134a) to discharge the refrigerant. Recycle Refrigerant.
3.Remove the following parts:
- Air duct (inlet) : Service and Repair.
- Engine cover : Removal and Installation.
- Air cleaner case (bank2) : Service and Repair.
- Air duct (bank2) : Service and Repair.
- Engine under cover : Service and Repair.
4.Disconnect low voltage harness connector from electric compressor.
WARNING:
To prevent shock hazards, be sure to wear protective gear.
5.Remove mounting nut and disconnect low-pressure flexible hose (1) from electric compressor.
WARNING:
To prevent shock hazards, be sure to wear protective gear.
CAUTION:
To prevent the inclusion of foreign matter, cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to avoid the entry of air.
6.Remove mounting nut and disconnect high-pressure flexible hose (1) from electric compressor.
WARNING:
To prevent shock hazards, be sure to wear protective gear.
CAUTION:
To prevent the inclusion of foreign matter, cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to avoid the entry of air.
7.Disconnect high voltage harness connector (A) and low voltage harness connector (B) from electric compressor.
WARNING:
- To prevent shock hazards, be sure to wear protective gear.
- To prevent shock hazards, immediately wrap insulating tape around disconnected high voltage connector terminals.
- Follow the procedure below and disconnect the high voltage harness connector.
8.Remove harness bracket (1) from electric compressor.
WARNING:
To prevent shock hazards, be sure to wear protective gear.
9.Remove mounting bolts to remove electric compressor from lower side of the vehicle.
WARNING:
To prevent shock hazards, be sure to wear protective gear.
INSTALLATION
Note the following, and install in the reverse order of removal.
WARNING:
To prevent shock hazards, be sure to wear protective gear.
CAUTION:
- Be sure to reinstall high voltage harness clips in their original positions. If a clip is damaged, replace it with a new clip before installing.
- Before installing the new compressor, adjust the compressor oil level. Lubricant Adjusting Procedure For Compressor Replacement.
- To prevent degradation in insulation performance, use special electric compressor oil as the compressor oil.
- In order to prevent conventional PAG oil from becoming mixed in, do not reuse recovered compressor oil and instead always use new oil. The use of oil including the conventional PAG oil may degrade the performance of insulation.
- To prevent performance degradation, do not use a fluorescent agent in order to detect refrigerant leakage. Also take care that a fluorescent agent does not enter the oil.
- To prevent leakage of refrigerant, replace the O-ring with a new one. Apply a coat of compressor oil to the O-ring prior to installation.
- Perform a check for refrigerant leakage when charging with refrigerant. Check Refrigerant Leakage.
- Set the vehicle to READY and operate the air-conditioner for at least 1 minute with the vehicle parked to perform a break-in.
- Follow the procedure below and connect high voltage harness connector.
- After all parts are installed, be sure to check the equipotential. Electric Compressor Inspection.