Removal And Installation
TRACTION MOTOR
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 disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.
- To prevent the removed service plug from being connected by mistake during the procedure, always carry it in your pocket or put it in the tool box.
- Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses 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.
- Refer to "High Voltage Precautions" 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.
REMOVAL
WARNING:
Disconnect high voltage circuit. Refer to "How to Disconnect High Voltage" Service and Repair.
1.Check voltage in high voltage circuit. (Check that condenser are discharged.)
a.Lift up the vehicle and remove the li-ion battery under covers. Refer to "Exploded View" Service and Repair.
b.Disconnect the high voltage connector from front side of Li-ion battery. Refer to "Removal and Installation" Service and Repair.
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.Drain coolant. Refer to "Draining and Refilling" Coolant Draining And Refilling.
3. Remove drain bolt (A) of traction motor to drain coolant.
WARNING:
To prevent electric shock hazards, be sure to put on insulating protective gear before beginning work on the high voltage system.
4.Remove traction motor inverter.
5.Drain reduction gear oil. Refer to "Draining and Refilling"
6.Remove traction motor and reduction gear from vehicle together as suspension member assembly. Refer to "Removal and Installation"
7.Remove reduction gear from suspension member. Refer to "Removal and Installation"
8.Attach slinger to traction motor, and prepare to lift up with hoist.
WARNING:
To prevent electric shock hazards, be sure to put on insulating protective gear before beginning work on the high voltage system.
: 28.0 N-m (2.9 kg-m, 21ft-lb)
Tightening torque for mounting bolts
9.Remove right motor mounting bolt, then lift up traction motor with hoist and separate it from suspension member.
WARNING:
To prevent electric shock hazards, be sure to put on insulating protective gear before beginning work on the high voltage system.
INSTALLATION
Note the following, and install in the reverse order of removal.
WARNING:
To prevent electric shock hazards, be sure to put on insulating protective gear before beginning work on the high voltage system.
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.
- Be sure to perform correct air bleeding after adding coolant. Refer to "Draining and Refilling" Coolant Draining And Refilling.
- If traction motor was replaced, perform resolver correction value learning. Refer to "Work Procedure" Work Procedure.
- If traction motor was replaced, apply high voltage warning label at position (A), with the top facing in the direction of the arrow.
- Before installing reduction gear and traction motor, apply grease to full periphery of shaft spline (A), and also inject grease [minimum 8.5 g (0.3 oz), maximum less than 20 g (0.7 oz)] into reduction gear input shaft (inside spline) (B). Take care to prevent damage to O-ring (1) when installing.
CAUTION:
Clean the grease applying area to remove old grease and abrasion powder before applying grease.
- Follow the procedure below and connect the 3-step type high voltage harness connector.
- When all parts are installed, be sure to check equipotential of traction motor, electric compressor, and traction motor inverter.
- Traction motor: Refer to "Inspection and Adjustment" Inspection And Adjustment.
- Electric compressor: Refer to "Inspection" Electric Compressor Inspection.
- Traction motor inverter: Refer to "Inspection and Adjustment"