Nissan Sentra. Manual — part 535
HA-34
< REMOVAL AND INSTALLATION >
COMPRESSOR
1. Check the clearance around the entire periphery of the clutch
disc.
2. If specified clearance is not obtained, replace compressor clutch.
BREAK-IN OPERATION
When replacing compressor clutch assembly, always conduct the break-in operation. This is done by engag-
ing and disengaging the clutch about 30 times. Break-in operation raises the level of transmitted torque.
Clutch disc to
pulley clearance
: 0.3 - 0.6 mm (0.01 - 0.02 in)
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COOLER PIPE AND HOSE
HA-35
< REMOVAL AND INSTALLATION >
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COOLER PIPE AND HOSE
Exploded View
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LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation
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REMOVAL
1. Discharge the refrigerant. Refer to
2. Remove the upper torque rod bolts (A) and the upper torque rod
(1).
1.
High-pressure service port
2.
High-pressure pipe
3.
Expansion valve
4.
Low-pressure service port
5.
Low-pressure flexible hose
6.
Compressor
7.
Refrigerant pressure sensor
8.
Condenser and liquid tank assembly 9.
High-pressure flexible hose
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HA-36
< REMOVAL AND INSTALLATION >
COOLER PIPE AND HOSE
3. Remove the washer tank inlet bolt (A), then pull the washer tank
inlet (1) up and out of the washer tank.
4. Remove the engine ground bolts (A) and the engine ground (1).
5. Remove the A/C pipe bracket bolts (A).
(1): Low-pressure service port
(2): High-pressure service port
6. Remove the push nut (A) from the expansion valve insulator (1)
and reposition.
7. Remove the bolt (A) that retains the high-pressure pipe and low-
pressure flexible hose to the expansion valve, then disconnect
the low-pressure flexible hose from the expansion valve and
high-pressure pipe.
CAUTION:
Cap or wrap the joint of the hose with suitable material such
as vinyl tape to avoid the entry of air.
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COOLER PIPE AND HOSE
HA-37
< REMOVAL AND INSTALLATION >
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8. Remove the front under cover. Refer to
EXT-31, "ENGINE UNDER COVER : Removal and Installation"
.
9. Remove the bolt that retains the high-pressure flexible hose to the compressor, then disconnect the high-
pressure flexible hose from the compressor.
10. Remove the bolt that retains the low-pressure flexible hose to the compressor, then disconnect the low-
pressure flexible hose from the compressor.
11. Remove the low-pressure flexible hose.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the new O-rings.
• After charging refrigerant, check for leaks. Refer to
.
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation
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REMOVAL
1. Discharge the refrigerant. Refer to
2. Remove the core support upper cover. Refer to
.
3. Remove the bolt (A) that retains the high-pressure flexible hose
to the condenser, then disconnect the high-pressure flexible
hose from the condenser and liquid tank assembly.
CAUTION:
Cap or wrap the joint of the hose with suitable material such
as vinyl tape to avoid the entry of air.
4. Remove the bolt that retains the high-pressure flexible hose to the compressor, then disconnect the high-
pressure flexible hose from the compressor.
5. Remove the high-pressure flexible hose.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to new O-rings.
• After charging refrigerant, check for leaks. Refer to
.
HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE : Removal and Installation
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REMOVAL
1. Discharge the refrigerant. Refer to
2. Remove the core support upper. Refer to
3. Remove the low-pressure flexible hose. Refer to
HA-35, "LOW-PRESSURE FLEXIBLE HOSE : Removal
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