Nissan Leaf. Manual - part 1206

TRACTION MOTOR INVERTER

TMS-105

< REMOVAL AND INSTALLATION >

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4. Remove the traction motor inverter connector cover  .

WARNING:

To prevent electric shock hazards, be sure to put on insulat-

ing protective gear before beginning work on the high volt-

age system.

5. Disconnect the traction motor inverter connect  .

WARNING:

To prevent electric shock hazards, be sure to put on insulat-

ing protective gear before beginning work on the high volt-

age system.

6. Remove the 3-phase bus bar cover   and gasket.

WARNING:

To prevent electric shock hazards, be sure to put on insulat-

ing protective gear before beginning work on the high volt-

age system.

7. Remove the 3-phase bus bar mounting bolts (

).

WARNING:

To prevent electric shock hazards, be sure to put on insulat-

ing protective gear before beginning work on the high volt-

age system.

CAUTION:

• When removing the 3-phase bus bar mounting bolt, never

drop the bolt into the traction motor.

• After the 3-phase bus bar mounting bolt is removed, close

off the opening using tape or an equivalent to prevent dirt, dust, or foreign material from enter-

ing the traction motor. When leaving workspace for a long time, install the 3-phase bus bar

cover.

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TMS-106

< REMOVAL AND INSTALLATION >

TRACTION MOTOR INVERTER

8. Remove the traction motor inverter mounting bolts (

).

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. Install the guide pin (SST: KV99112300) (A) to the traction motor

inverter mounting bolt hole (2 holes located in vehicle 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.

NOTE:

Perform installation and removal of guide pins manually.

10. Remove the traction motor inverter by hands.

WARNING:

To prevent electric shock hazards, be sure to put on insulating protective gear before beginning

work on the high voltage system.

CAUTION:

• Remove the traction motor inverter in the vertical direction.

• Never damage the 3-phase bus bar.

• Never damage the bolt hole threaded portion located on the traction motor side, where the guide

pin is installed.

NOTE:

Dowel pins are located around the traction motor inverter mounting bolt hole (two locations) in vehicle

front.

11. When leaving the traction motor inverter, use wooden blocks to

prevent 3-phase bus bar interference.

WARNING:

To prevent electric shock hazards, be sure to put on insulat-

ing protective gear before beginning work on the high volt-

age system.

CAUTION:

Never set the traction motor inverter on wood blocks in a

position in which it is supported by dowel pins.

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Guide pin (A)

: 96 mm (3.78 in)

: Vehicle front

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TRACTION MOTOR INVERTER

TMS-107

< REMOVAL AND INSTALLATION >

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12. Cover the 3-phase bus bar with shop cloth  .

WARNING:

To prevent electric shock hazards, be sure to put on insulat-

ing protective gear before beginning work on the high volt-

age system.

CAUTION:

Always protect the bus bar section with a clean shop cloth.

If the bus bar is touched or dirty, clean it using ethanol.

13. Remove the seal   from the opening of traction motor side 3-

phase bus bar.

WARNING:

To prevent electric shock hazards, be sure to put on insulat-

ing protective gear before beginning work on the high volt-

age system.

CAUTION:

Close off the opening using tape or an equivalent, for pre-

venting dirt, dust, or foreign material from entering the

drive motor.

INSTALLATION

Pay attention to the following and install by following the procedure for removal in the reverse order.

WARNING:

To prevent electric shock hazards, be sure to put on insulating protective gear before beginning work

on the high voltage system.

CAUTION:

It is necessary to perform writing of the traction motor resolver offset to the traction motor inverter

after the traction motor inverter is replaced. Refer to 

TMS-39, "Work Procedure"

.

• When installing the drive motor inverter, always use the guide pin (SST: KV99112300). After installation, be

sure to remove the guide pin.

CAUTION:

Never damage the 3-phase bus bar.

• Check that the dowel pin is inserted to the end position completely.

• When attaching the seal to the opening of traction motor side 3-

phase bus bar, be sure to install the convex portion   of the seal
to the installation groove   completely.

• Never reuse the seal for the opening of traction motor side 3-phase

bus bar.

• Never reuse gasket of 3-phase bus bar cover.

Inspection and Adjustment

INFOID:0000000010121015

INSPECTION AFTER INSTALLATION

After installing traction motor inverter, measure resistance below.

• Between traction motor inverter and other high voltage system.

• Between traction motor inverter and body.

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TMS-108

< REMOVAL AND INSTALLATION >

TRACTION MOTOR INVERTER

WARNING:

To prevent electric shock hazards, be sure to put on insulating protective gear before beginning work

on the high voltage system.

If result deviates from standard values, check that no paint, oil, dirt, or other substance is adhering to bolts or

conductive mounting parts. If any such substance is adhering, clean the surrounding area and remove the

substance.

ADJUSTMENT AFTER INSTALLATION

It is necessary to perform writing of the traction motor resolver offset to the traction motor inverter after the

traction motor inverter is replaced. Refer to 

TMS-39, "Work Procedure"

.

Standard

: Less than 0.1 

Ω