Nissan Leaf. Manual — part 731
HA-46
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
COOLER PIPE AND HOSE
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.
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
.
HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE : Removal and Installation
INFOID:0000000010122122
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-45, "LOW-PRESSURE FLEXIBLE HOSE : Removal and
.
2. Remove washer tank inlet. Refer to
3. Remove cowl top extension. Refer to
COOLER PIPE AND HOSE
HA-47
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
4. Remove bolts (A), and then disconnect high-pressure flexible hose (1) from the high-pressure pipe (2).
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the connection ports
of the pipe and condenser from the atmosphere.
5. Remove bolt (A), and then disconnect high-pressure pipe (2) from the inner 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 expansion valve from the atmosphere.
6. Remove nut (A) and 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
.
2-WAY VALVE AND 3-WAY VALVE ASSEMBLY
2-WAY VALVE AND 3-WAY VALVE ASSEMBLY : Removal and Installation
INFOID:0000000010122123
DANGER:
JMIIA2654ZZ
JMIIA2658ZZ
JMIIA2663ZZ
HA-48
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
COOLER PIPE AND HOSE
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
2. Remove radiator upper grille. Refer to
DLK-165, "RADIATOR UPPER GRILLE : Removal and Installa-
3. Remove washer tank inlet. Refer to
4. Remove bolts (A), and then disconnect high-pressure flexible hose (1) from the high-pressure pipe (2).
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the connection ports
of the hose and pipe from the atmosphere.
5. Remove bolts (A), and then disconnect high-pressure hoses and pipes (1) from condenser (2).
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the connection ports
of the hose and pipe from the atmosphere.
JMIIA2654ZZ
JMIIA2656ZZ
COOLER PIPE AND HOSE
HA-49
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
6. Remove bolt (A) and then disconnect high-pressure pipes (1) and (2) from inner condenser.
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the connection ports
and the hose and pipe from the atmosphere.
7. Remove bolt (A) and then disconnect low pressure pipes (1) from evaporator.
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the connection ports
and the pipes from the atmosphere.
8. Remove bolt (A), and then disconnect low-pressure hose (1) from accumulator assembly.
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl tape to seal off the connection ports
and the hose from the atmosphere.
9. Disconnect harness connectors, remove bolts (A), and then remove the 2-way valve and 3-way valve
assembly.
JMIIA2658ZZ
JMIIA2659ZZ
: Vehicle front
JMIIA2657ZZ
JMIIA2660ZZ
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