Nissan Leaf. Manual — part 1207
TRACTION MOTOR
TMS-109
< UNIT REMOVAL AND INSTALLATION >
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UNIT REMOVAL AND INSTALLATION
TRACTION MOTOR
Exploded View
INFOID:0000000010121016
Removal and Installation
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DANGER:
Motor mounting rear
Motor mounting rear bracket
Traction motor
Seal
Gasket
3-phase bus bar cover
High voltage warning label
Motor mounting RH bracket
Motor mounting RH
Water inlet
O-ring
Water outlet
Drain plug
Copper washer
Gasket
Drain plug
Motor mounting LH bracket
Motor mounting LH
Clip
Breather hose
Breather box
Filler plug
Gasket
Reduction gear
O-ring
A.
Shaft spline
B.
Inside of input shaft (inside of spline)
: N·m (kg-m, in-lb)
: N·m (kg-m, ft-lb)
: Always replace after every disassembly.
: Apply lithium-based grease including molybdenum disulphide.
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TMS-110
< UNIT REMOVAL AND INSTALLATION >
TRACTION MOTOR
Since 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.
WARNING:
• Be sure to remove the service plug in order to disconnect the high voltage circuits before perform-
ing inspection or maintenance of high voltage system harnesses and parts.
• The removed service plug must always be carried in a pocket of the responsible worker or placed in
the tool box during the procedure to prevent the plug from being connected by mistake.
• Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses
before beginning work on the high voltage system.
• Never allow workers other than the responsible person to touch the vehicle containing high voltage
parts. To keep others from touching the high voltage parts, these parts must be covered with an insu-
lating sheet except when using them.
• Refer to
TMS-5, "High Voltage Precautions"
.
CAUTION:
Never bring the vehicle into the READY status with the service plug removed unless otherwise
instructed in the Service Manual. A malfunction may occur if this is not observed.
REMOVAL
WARNING:
Disconnect the high voltage. Refer to
GI-33, "How to Disconnect High Voltage"
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
b. Disconnect high voltage harness connector and PTC heater harness connector from front side of Li-ion
battery. Refer to
EVB-181, "Removal and Installation"
.
c.
Measure voltage between high voltage harness connector terminals and PTC heater harness connector
terminals.
DANGER:
Touching high voltage components without using the appropriate protective equipment will
cause electrocution.
CAUTION:
For voltage measurements, use a tester which can measure to 500 V or higher.
2. Remove front under cover. Refer to
EXT-23, "FRONT UNDER COVER : Exploded View"
Standard
: 5 V or less
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TRACTION MOTOR
TMS-111
< UNIT REMOVAL AND INSTALLATION >
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3. Remove drain bolt of traction motor to drain coolant.
WARNING:
To prevent electric shock hazards, be sure to put on insulat-
ing protective gear before beginning work on the high volt-
age system.
4. Drain reduction gear oil. Refer to
.
5. Remove electric power train and reduction gear from vehicle
together as suspension member assembly. Refer to
FSU-22, "Removal and Installation"
.
6. Remove PDM (Power Delivery Module). Refer to
VC-112, "Removal and Installation"
.
7. Remove traction motor inverter. Refer to
TMS-103, "Removal and Installation"
8. Remove joint bolt (
) of motor mounting rear bracket and motor
mounting rear.
WARNING:
To prevent electric shock hazards, be sure to put on insulat-
ing protective gear before beginning work on the high volt-
age system.
9. Remove joint bolt (
) of motor mounting LH bracket and motor
mounting LH.
WARNING:
To prevent electric shock hazards, be sure to put on insulat-
ing protective gear before beginning work on the high volt-
age system.
10. Remove joint bolt (
) of motor mounting RH bracket and motor
mounting RH.
WARNING:
To prevent electric shock hazards, be sure to put on insulat-
ing protective gear before beginning work on the high volt-
age system.
11. Hook the sling belt to each motor mounting bracket and prepare
to disconnect the traction motor and reduction gear from the
front suspension member assembly.
12. Hoist the traction motor and reduction gear and disconnect them from the front suspension member
assembly.
WARNING:
To prevent electric shock hazards, be sure to put on insulating protective gear before beginning
work on the high voltage system.
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TMS-112
< UNIT REMOVAL AND INSTALLATION >
TRACTION MOTOR
CAUTION:
When hoisting the traction motor and reduction gear, insert a long bolt into the motor mounting
bracket to prevent the sling belt from slipping out. At that time, be sure to install a nut.
13. Remove support bearing bracket of drive shaft (right side). Refer to
FAX-19, "RIGHT SIDE : Removal and
.
WARNING:
To prevent electric shock hazards, be sure to put on insulating protective gear before beginning
work on the high voltage system.
14. Remove motor mounting LH bracket .
WARNING:
To prevent electric shock hazards, be sure to put on insulat-
ing protective gear before beginning work on the high volt-
age system.
15. Remove motor mounting rear bracket .
WARNING:
To prevent electric shock hazards, be sure to put on insulat-
ing protective gear before beginning work on the high volt-
age system.
16. Remove motor mounting RH bracket .
WARNING:
To prevent electric shock hazards, be sure to put on insulat-
ing protective gear before beginning work on the high volt-
age system.
17. Remove joint bolts traction motor and reduction gear.
WARNING:
To prevent electric shock hazards, be sure to put on insulating protective gear before beginning
work on the high voltage system.
18. Separate traction motor from reduction gear.
WARNING:
: Bolt
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: Bolt
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: Bolt
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