Nissan Leaf. Manual - part 729

 

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Nissan Leaf. Manual - part 729

 

 

HA-38

< REMOVAL AND INSTALLATION >

[WITH HEAT PUMP SYSTEM]

ELECTRIC COMPRESSOR

• 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 

GI-34, "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 high voltage circuit. 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 then remove Li-ion battery under covers. Refer to 

EVB-181, "Exploded View"

.

b. Disconnect high voltage connector from front side of Li-ion battery. Refer to 

EVB-181, "Removal and

Installation"

.

c.

Measure voltage between high voltage harness 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. Use the refrigerant recovery equipment (for HFC134a) and recover the refrigerant. 

HA-27, "Recycle

Refrigerant"

.

3. Remove radiator upper grille. Refer to 

DLK-165, "RADIATOR UPPER GRILLE : Removal and Installa-

tion"

.

4. Remove bolt (A) and disconnect low-pressure flexible hose from electric compressor.

WARNING:

 

To prevent electric shock hazards, be sure to wear protective gear.

Standard

: 5 V or less 

JPCIA0296ZZ

JMIIA2646ZZ

ELECTRIC COMPRESSOR

HA-39

< REMOVAL AND INSTALLATION >

[WITH HEAT PUMP SYSTEM]

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CAUTION:

• Cover the low pressure port of the electric compressor with a cap to prevent oil from spilling.

• To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the pipe connection

port from the atmosphere.

5. Remove bolts (A) and disconnect high-pressure flexible hose from electric compressor. 

WARNING:

 

To prevent electric shock hazards, be sure to wear protective gear.

CAUTION:

• Cover the high pressure port of the electric compressor with a cap to prevent oil from spilling.

• To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the pipe connection

port from the atmosphere.

6. Disconnect quick charge port connectors (1) inside motor room.

WARNING:

•  

To prevent electric shock hazards, be sure to wear

protective gear.

• To prevent electric shock hazards, immediately wrap insu-

lating tape around disconnected high voltage connector

terminals.

7. Disconnect normal charge port connector (1) inside motor room.

WARNING:

•  

To prevent electric shock hazards, be sure to wear

protective gear.

• To prevent electric shock hazards, immediately wrap insu-

lating tape around disconnected high voltage connector

terminals.

8. Move the water hose to a position where it will not interfere with work.
9. Remove front under cover. Refer to 

EXT-23, "FRONT UNDER COVER : Removal and Installation"

.

10. Remove front wheel and tire (RH). Refer to 

WT-45, "Removal and Installation"

.

11. Remove fender protector. Refer to 

EXT-21, "FENDER PROTECTOR : Removal and Installation"

.

JMIIA2645ZZ

: Vehicle front

JSCIA0164ZZ

: Vehicle front

JSCIA0167ZZ

HA-40

< REMOVAL AND INSTALLATION >

[WITH HEAT PUMP SYSTEM]

ELECTRIC COMPRESSOR

12. Remove bolt (A), and then remove compressor stay.

WARNING:

 

To prevent electric shock hazards, be sure to wear

protective gear.

13. Disconnect high voltage harness connector.

WARNING:

•  

To prevent electric shock hazards, be sure to wear

protective gear.

• To prevent electric shock hazards, immediately wrap insu-

lating tape around disconnected high voltage connector

terminals.

• Follow the procedure below and disconnect high voltage harness connector.

14. Disconnect low voltage harness connector.

WARNING:

 

To prevent electric shock hazards, be sure to wear

protective gear.

15. Remove bolts (A) from electric compressor (1).

WARNING:

 

To prevent electric shock hazards, be sure to wear

protective gear.

JMIIA2641ZZ

JMIIA2647ZZ

JPCIA0035ZZ

JMIIA2648ZZ

JPIIA1766ZZ

ELECTRIC COMPRESSOR

HA-41

< REMOVAL AND INSTALLATION >

[WITH HEAT PUMP SYSTEM]

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16. Remove electric compressor (1) from the vehicle.

WARNING:

 

To prevent electric shock hazards, be sure to wear

protective gear.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

WARNING:

 

To prevent electric shock hazards, be sure to wear protective gear.

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.

• Before installing the new compressor, adjust the compressor oil level. Refer to 

HA-30, "Lubricant

Adjusting Procedure for Compressor Replacement"

.

• To prevent degradation in insulation performance, use special electric compressor oil as the com-

pressor oil.

• In order to prevent conventional PAG oil from becoming mixed in, never reuse recovered compres-

sor oil and instead always use new oil. The use of oil including the conventional PAG oil may

degrade the performance of insulation.

• To prevent performance degradation, never use a fluorescent agent in order to detect refrigerant

leakage. Also be careful that a fluorescent agent never enter the oil.

• To prevent leakage of refrigerant, replace the O-ring with a new one. Apply a coat of compressor oil

to the O-ring prior to installation.

• Perform a check for refrigerant leakage when charging with refrigerant. Refer to 

HA-26, "Check

Refrigerant Leakage"

.

• Set the vehicle to READY and operate the air-conditioner for at lease 1 minute with the vehicle

parked to perform a break-in.

• If the compressor stay was replaced, first check that there is no

dust or dirt on the surface of the compressor stay, then apply the

new high voltage warning label at position (A), with the direction

indicated by the arrow facing up.

JPIIA1858ZZ

: Application direction of the label

JMIIA2584ZZ

 

 

 

 

 

 

 

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