Nissan Leaf. Manual - part 487

 

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Nissan Leaf. Manual - part 487

 

 

LI-ION BATTERY

EVB-231

< UNIT DISASSEMBLY AND ASSEMBLY >

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c. Move the battery pack and place the workbench below the front module stack.

WARNING:

To prevent electric shock, wear insulated protective gear.

CAUTION:

Place the removed battery pack upper case onto the battery pack for storage.

d. Place the front module stack onto the workbench.

WARNING:

To prevent electric shock, wear insulated protective

gear.

Because there is a risk of electric shock, lay an anti-

static rubber sheet on the workbench.

NOTE:

The figure shows the front module stack RH.

14. Remove the Li-ion battery heater harness  .

WARNING:

To prevent electric shock, wear insulated protective gear and use insulated tools.

INSTALLATION

Note the following items, and disassembly in the reverse order of disassembly.

DANGER:

 There is the danger of electric shock caused by contact with the terminals. Be sure to wear

insulated protective gear and use insulated tools.

Because there is a danger of electric shock and fire, never allow bus bar to contact a wrong ter-

minal.

- If bus bar contacts a wrong terminal, the circuit becomes energized and a short may occur.

- Always keep the bus bar cover closed until immediately before the installation of bus bar.

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: Harness clip

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EVB-232

< UNIT DISASSEMBLY AND ASSEMBLY >

LI-ION BATTERY

- Since the correct installation position for the bus bar connected to both front module stacks is com-

monly-confused with the wrong position  , install the bus bar to the correct position   with extreme

caution.

WARNING:

Install the Li-ion battery controller immediately before installing the battery pack upper case. Refer to

EVB-201, "LI-ION BATTERY CONTROLLER : Removal and Installation"

.

EV Battery Tracking Identification Seal

When replacing the Li-ion battery with a new battery, perform the following operation.

1. Enter the date of the (replacement) work on the EV battery tracking identification seal that is packaged

together with the new part.

2. Cut the EV battery tracking identification tool into 2 pieces and apply them to the body of the replaced

(old) LI-ion battery and to the “Li-ion battery replacement history record”.

3. Enter the necessary information in the “Li-ion battery replacement history record”.

Battery Temperature Sensor Harness (Front)

Install the battery temperature sensor harness (front) onto the front module stack RH.

CAUTION:

Correct position

Wrong position

: Battery front

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LI-ION BATTERY

EVB-233

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• Be sure to reinstall the high voltage harness clips in their original positions. If a clip is damaged,

replace it with a new clip before installing.

• Check the following items after installing battery pack: Refer to 

EVB-256, "Inspection"

.

AIR LEAK INSPECTION
ELECTRIC EQUIPOTENTIAL TEST

NOTE:

Install the battery temperature sensor onto module No. MD39 and MD46.

FRONT MODULE STACK : Disassembly and Assembly

INFOID:0000000010121186

DANGER:

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 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 pocket and carry it or store it in a tool box or other con-

tainer so that another person does not accidentally connect it while work is in progress.

• Be sure to put on insulating protective gear 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 components with an anti-static cover sheet

or similar item to prevent contact with other persons. 

• Refer to 

EVB-7, "High Voltage Precautions"

• If the battery pack is to be disassembled, be sure to remove the Li-ion battery controller for prevent-

ing electric shock, fire, and damage to parts.

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.

ENVIRONMENT FOR LI-ION BATTERY DISASSEMBLY WORK

1. Must be an indoor environment.

• The environment must utilize a shutter or other means to shut out the outside environment and prevent

rain, snow, dust, or other substances from entering.

• The environment must not cause the intrusion of sweat during work, or cause condensation to occur

due to high temperature or humidity.

2. Metal powder, grease, and other foreign substances must not enter.

• The indoor environment must also prevent metal powder, grease, and other foreign substances from

entering due to maintenance performed on other vehicles and other sources during disassembly work.

• If there is a risk of the above substances entering, take appropriate countermeasures, such as use of a

vinyl curtain or an equivalent to shut out the outside environment. 

3. The floor must be dry.

• The floor must not be wet as a result of factors such as vehicle entry during rain or snow.

4. Work space

• The work space must be approximately the size of one entire vehicle.

• Take appropriate countermeasures so that persons other than the operator do not enter the work space,

such as by placing signs indicating that disassembly work is in progress.

5. Standard fire fighting equipment

• Always place a standard fire fighting equipment in the disassembly work area.

• Depending on type of fire (vehicle or battery) use standard fire fighting equipment (water or extin-

guisher).

DISASSEMBLY

1. Follow the procedure below and remove the bus bar module from the front module stack.

EVB-234

< UNIT DISASSEMBLY AND ASSEMBLY >

LI-ION BATTERY

a. Remove the bus bar cover, then remove the module terminal mounting bolts  .

DANGER:

 There is the danger of electric shock caused by contact with the terminals. Be sure to wear

insulated protective gear and use insulated tools.

This work must not be performed by multiple operators because there is a risk of electric

shock if the operators contact one another.

b. Remove the voltage detection terminal mounting screws  , then remove the bus bar module   from the

front module stack.

DANGER:

 There is the danger of electric shock caused by contact with the terminals. Be sure to wear

insulated protective gear and use insulated tools.

This work must not be performed by multiple operators because there is a risk of electric

shock if the operators contact one another.

c.

Install a module terminal cover [SST: KV99111500 ( — )]   onto all module terminals.

WARNING:

To prevent electric shock, wear insulated protective gear.

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