Nissan Leaf. Instruction — part 730
HA-42
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
ELECTRIC COMPRESSOR
• Follow the procedure below and connect the high voltage harness connector.
• After all parts are installed, be sure to check the equipotential. Refer to
.
Inspection
INFOID:0000000010122118
EQUIPOTENTIAL TEST
After installing the electric compressor, measure the resistance below.
• Between electric compressor (aluminum part) and body (ground bolt).
• Between electric compressor (aluminum part) and DC/DC-J/B (aluminum part).
WARNING:
To prevent electric shock hazards, be sure to wear protective gear.
If the result deviates from the standard value, check for paint, oil, dirt, or other substance adhering to the bolts
or conductive mounting parts. If such substances are found, clean the surrounding area and remove foreign
substances.
JPCIA0036ZZ
Standard
: Less than 0.1
Ω
COOLER PIPE AND HOSE
HA-43
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
COOLER PIPE AND HOSE
Exploded View
INFOID:0000000010122119
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation
INFOID:0000000010122120
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.
1.
2-way and 3-way valve assembly
2.
O-ring
3.
O-ring
4.
Accumulator assembly
5.
Condenser
6.
Low-pressure flexible hose
7.
Electric compressor
8.
High-pressure flexible hose
9.
High-pressure pipe
10. Heating and cooling unit assembly
: Always replace after every disassembly.
: N·m (kg-m, in-lb)
JMIIA2635GB
HA-44
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
COOLER PIPE AND HOSE
• 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 Instruction. 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 Installation"
.
3. Remove washer tank inlet. Refer to
4. Remove bolts (A), and then disconnect high-pressure flexible hose (1) from 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 bolts (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.
JMIIA2654ZZ
JMIIA2645ZZ
COOLER PIPE AND HOSE
HA-45
< REMOVAL AND INSTALLATION >
[WITH HEAT PUMP SYSTEM]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
• 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
.
LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation
INFOID:0000000010122121
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 Instruction. 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 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-
4. Remove bolt (A), and then disconnect low-pressure flexible hose (1) from accumulator assembly (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 expansion valve from the atmosphere.
5. Remove bolt (A), and then disconnect low-pressure flexible hose from electric compressor.
JMIIA2655ZZ
JMIIA2646ZZ
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