Nissan Leaf. Manual - part 745

HA-102

< REMOVAL AND INSTALLATION >

[WITHOUT HEAT PUMP SYSTEM]

COOLER PIPE AND HOSE

• 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 

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

1. Use the refrigerant recovery equipment (for HFC134a) and recover the refrigerant. Refer to 

HA-85, "Recy-

cle Refrigerant"

.

2. Remove radiator upper grille. Refer to 

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

tion"

.

3. Remove washer tank inlet. Refer to 

WW-43, "Exploded View"

.

4. Remove bolt (A), and then disconnect high-pressure flexible

hose (1) from condenser.

CAUTION:

To prevent the inclusion of foreign matter, use a cap or vinyl

tape to seal off the connection ports of the pipe and con-

denser from the atmosphere.

5. Remove nut (A), and then disconnect high-pressure flexible

hose from electric compressor.

WARNING:

 

To prevent electric shock hazards, be sure to wear

protective gear.

CAUTION:

To prevent the inclusion of foreign matter, use a cap or vinyl

tape to seal off the connection ports of the pipe and electric

compressor from the atmosphere.

6. Disconnect high-pressure flexible hose from the vehicle.

INSTALLATION

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

CAUTION:

• 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.

: Vehicle front

JMIIA2672ZZ

JMIIA2670ZZ

COOLER PIPE AND HOSE

HA-103

< REMOVAL AND INSTALLATION >

[WITHOUT HEAT PUMP SYSTEM]

C

D

E

F

G

H

J

K

L

M

A

B

HA

N

O

P

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

HA-84, "Check

Refrigerant Leakage"

.

LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000010122174

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 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 

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

1. Use the refrigerant recovery equipment (for HFC134a) and recover the refrigerant. Refer to 

HA-85, "Recy-

cle Refrigerant"

.

2. Remove cowl top extension. Refer to 

EXT-19, "Removal and Installation"

.

3. Remove radiator upper grille. Refer to 

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

tion"

.

4. Remove nut (A), and then disconnect low-pressure flexible hose

(1) from low-pressure pipe (2).

5. Remove nut (A), and then disconnect low-pressure flexible hose

from electric compressor.

WARNING:

 

To prevent electric shock hazards, be sure to wear

protective gear.

CAUTION:

To prevent the inclusion of foreign matter, use a cap or vinyl

tape to seal off the connection ports of the pipe and electric

compressor from the atmosphere.

6. Disconnect low-pressure flexible hose from the vehicle.

JMIIA2671ZZ

JMIIA2668ZZ

HA-104

< REMOVAL AND INSTALLATION >

[WITHOUT HEAT PUMP SYSTEM]

COOLER PIPE AND HOSE

INSTALLATION

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

CAUTION:

• 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-84, "Check

Refrigerant Leakage"

.

HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE : Removal and Installation

INFOID:0000000010122175

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 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 

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

1. Remove low-pressure flexible hose. Refer to 

HA-103, "LOW-PRESSURE FLEXIBLE HOSE : Removal

and Installation"

.

2. Remove washer tank inlet. Refer to 

WW-43, "Exploded View"

.

3. Remove cowl top extension. Refer to 

EXT-19, "Removal and Installation"

.

4. Remove bolt (A), and then disconnect high-pressure flexible

hose (1) and high-pressure pipe (2) from condenser.

CAUTION:

To prevent the inclusion of foreign matter, use a cap or vinyl

tape to seal off the connection ports of the pipe and con-

denser from the atmosphere.

JMIIA2672ZZ

COOLER PIPE AND HOSE

HA-105

< REMOVAL AND INSTALLATION >

[WITHOUT HEAT PUMP SYSTEM]

C

D

E

F

G

H

J

K

L

M

A

B

HA

N

O

P

5. Remove bolt (A), then disconnect high-pressure pipe (2) from

the expansion valve.

CAUTION:

To prevent the inclusion of foreign matter, use a cap or vinyl

tape to seal off the connection ports of the pipe and expan-

sion valve from the atmosphere.

6. Move electric water pump 1 to secure work space. Refer to

HCO-25, "Exploded View"

.

7. Disconnect high-pressure pipe from the vehicle.

INSTALLATION

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

CAUTION:

• 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-84, "Check

Refrigerant Leakage"

.

LOW-PRESSURE PIPE
LOW-PRESSURE PIPE : Removal and Installation

INFOID:0000000010122176

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 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 

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

1. Use the refrigerant recovery equipment (for HFC134a) and recover the refrigerant. Refer to 

HA-85, "Recy-

cle Refrigerant"

.

JMIIA2673ZZ