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ComponentsNJS000F1
Refer to AT C - 8 , "Precautions for Refrigerant Connection" .
VQ35DE
SJIA1604E
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ATC-140
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VK45DE
Removal and Installation of CompressorNJS000F2
REMOVAL
VQ35DE
SJIA1605E
SJIA1643E
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VK45DE
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (VQ35DE) or
EM-177, "
AIR CLEANER AND AIR DUCT" (VK45DE).
3. Remove front engine undercover, using power tools.
4. Remove cooling fan shroud (lower). Refer to CO-41, "
RADIATOR" (VK45DE).
5. Remove mounting nuts from low-pressure flexible hose and high-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove high-pressure flexible hose. Refer to ATC-147,
"Removal and Installation of High-pressure Flexible Hose"
(VK45DE).
7. Disconnect compressor connector.
8. Remove A/C compressor belt. Refer to EM-15, "
DRIVE BELTS" (VQ35DE) or EM-174, "DRIVE BELTS"
(VK45DE).
RJIA2244E
RJIA2059E
RJIA2058E
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9. Disconnect compressor (ECV) connector.
10. Remove mounting bolts from compressor, using power tools.
11. Remove compressor downward of the vehicle.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Replace O-rings of low-pressure flexible hose, high-pressure pipe and high-pressure flexible hose
with new ones, and then apply compressor oil to it when installing it.
When recharging refrigerant, check for leaks.
Removal and Installation of Compressor ClutchNJS000F3
REMOVAL
Overhaul
1. When removing center bolt, hold clutch disc with a clutch disc wrench (SST).
2. Remove clutch disc using a clutch disc puller (SST).
RJIA2061E
RJIA2060E
RHA136EB
RHA399F
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3. Remove snap ring using external snap ring pliers.
4. Position center pulley puller on the end of drive shaft, and remove pulley assembly using any commercially available pul-
ley puller.
To prevent pulley groove from being deformed, puller claws
should be positioned into the edge of pulley assembly.
5. Remove field coil harness clip using a pair of pliers.
6. Remove snap ring using external snap ring pliers.
SJIA1277E
RHA138E
RHA139E
RHA125F
RHA145E
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Inspection
Clutch disc
If the contact surface shows signs of damage due to excessive heat,
replace clutch disc and pulley.
Pulley
Check appearance of pulley assembly. If contact surface of pulley
shows signs of excessive grooving, replace clutch disc and pulley.
Contact surfaces of pulley assembly should be cleaned with a suit-
able solvent before reinstallation.
Coil
Check coil for loose connection or cracked insulation.
INSTALLATION
1. Install field coil. Be sure to align coil’s pin with hole in compressor’s front head.
2. Install field coil harness clip using a screwdriver.
3. Install pulley assembly using pulley installer (SST) and a hand press, and then install snap ring using snap ring pliers.
4. Install clutch disc on drive shaft, together with original shim(s). Press clutch disc down by hand.
RHA126F
RHA142E
RHA143EA
RHA127F
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5. Using holder to prevent clutch disc rotation. After tightening bolt, make sure pulley rotates smoothly.
6. Check clearance around entire periphery of clutch disc. If specified clearance is not obtained, replace adjusting spacer
and readjust.
Break-in Operation
When replacing compressor clutch assembly, always carry out break-in operation. This is done by engaging
and disengaging clutch about thirty-times. Break-in operation raises the level of transmitted torque. : 14 N·m (1.4 kg-m, 10 ft-lb)
RHA086E
Disc to pulley clear-
ance : 0.25 - 0.6 mm (0.010 - 0.024 in)
RJIA0965E
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Removal and Installation of Low-pressure Flexible HoseNJS000F4
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove the air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (VQ35DE)
or EM-177, "
AIR CLEANER AND AIR DUCT" (VK45DE).
3. Remove low-pressure flexible hose bracket mounting bolt.
4. Disconnect one-touch joint between low-pressure flexible hose and low-pressure pipe 1.
a. Set a disconnector (SST: 9253089916) on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it. CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Remove mounting nut from low-pressure flexible hose.
6. Remove mounting nut, and then remove low-pressure pipe (VK45DE).
7. Remove low-pressure flexible hose. CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
RJIA2062E
RJIA2069E
RJIA2064E
RJIA2063E