Nissan Leaf. Instruction — 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 instructionly.
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
• 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
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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
Standard
: Less than 0.1
Ω
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