Nissan March K13. Manual — part 363
COMPRESSOR
HA-31
< REMOVAL AND INSTALLATION >
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COMPRESSOR : Removal and Installation
INFOID:0000000006032330
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Remove mounting bolts, and then disconnect low-pressure flexible hose and high-pressure flexible hose
from the compressor.
CAUTION:
Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.
3.
Remove drive belt. Refer to
EM-19, "Removal and Installation"
.
4.
Disconnect compressor (magnet clutch) connector.
5.
Remove mounting bolts, and then remove compressor form the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Perform lubricant adjusting procedure before installing new compressor. Refer to
Adjusting Procedure for Compressor Replacement"
• Check for leakages when recharging refrigerant. Refer to
• Check tension of the drive belt after installing compressor. Refer to
MAGNET CLUTCH
MAGNET CLUTCH : Removal and Installation of Compressor Clutch
INFOID:0000000006057762
REMOVAL
Overhaul
1.
When removing center bolt, hold clutch disc with clutch disc
wrench (SST:KV99232340) (A).
2.
Remove clutch disc.
3.
Remove snap ring using external snap ring pliers.
4.
Position center pulley puller on the end of the drive shaft, and remove pulley assembly using any commer-
cially available pulley puller.
To prevent pulley groove from being deformed, puller claws should be positioned into the edge of the pul-
ley assembly.
5.
Disconnect harness connector from compressor unit.
6.
Remove snap ring using external snap ring pliers, and then remove field coil.
INSTALLATION
1.
Install field coil (1).
JMIIA0574ZZ
HA-32
< REMOVAL AND INSTALLATION >
COMPRESSOR
Be sure to align the coil’s pin (2) with the hole in the compres-
sor’s front head.
2.
Install field coil harness clip.
3.
Install pulley assembly (1) using pulley installer
(SST:KV99106200) (A) and a hand press, and then install snap
ring (2) using snap ring pliers.
4.
Install clutch disc on drive shaft, together with original shim(s). Press clutch disc down by hand.
5.
Tighten center bolt to the specified torque while fixing clutch disc
not to rotate using a clutch disc wrench (SST:KV99232340).
After tightening the bolt, check that the pulley rotates smoothly.
Break-in Operation
When replacing compressor clutch assembly, always perform the break-in operation, by engaging and disen-
gaging the clutch approximately 30-times. Break-in operation increases the level of transmitted torque.
Inspection
INFOID:0000000006032331
CHECK DISC TO PULLEY CLEARANCE
Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).
Replace compressor if specified clearance is not obtained.
JMIIA0575ZZ
JMIIA0576ZZ
JMIIA0577ZZ
Clearance
: Refer to
JPIIA1566ZZ
COOLER PIPE AND HOSE
HA-33
< REMOVAL AND INSTALLATION >
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COOLER PIPE AND HOSE
Exploded View
INFOID:0000000006032332
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation
INFOID:0000000006032333
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Remove mounting bolt, and then disconnect high-pressure flexible hose from the condenser.
CAUTION:
Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.
3.
Remove mounting bolt, and then disconnect high-pressure flexible hose from the compressor.
CAUTION:
1.
A/C unit assembly
2.
O-ring
3.
High-pressure pipe
4.
O-ring
5.
Condenser
6.
Compressor
7.
O-ring
8.
Low-pressure flexible hose
9.
O-ring
10. High-pressure flexible hose
11.
O-ring
12. O-ring
Refer to
JMIIA0590GB
HA-34
< REMOVAL AND INSTALLATION >
COOLER PIPE AND HOSE
Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.
4.
Remove high-pressure flexible hose from the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation
INFOID:0000000006032334
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Remove the mounting bolt and nut installed in low-pressure flexible hose from the vehicle.
3.
Remove mounting bolt, and then disconnect low-pressure flexible hose from expansion valve.
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.
4.
Remove mounting bolt, and then disconnect low-pressure flexible hose from the compressor.
CAUTION:
Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.
5.
Remove low-pressure flexible hose from the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE : Removal and Installation
INFOID:0000000006032335
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Remove low-pressure flexible hose. Refer to
HA-34, "LOW-PRESSURE FLEXIBLE HOSE : Removal and
.
2.
Remove ground cable form the engine assembly.
3.
Disconnect high-pressure pipe from expansion valve.
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.
4.
Remove mounting bolt, and then disconnect high-pressure pipe from the condenser.
CAUTION:
Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.
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