Infiniti M45 (Y34). Manual — part 163
REFRIGERANT LINES
ATC-137
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Removal and Installation of Compressor
AJS0008O
REMOVAL
1.
2.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3.
Remove engine under cover, using power tools.
4.
Remove air cleaner assembly, air duct and air inlet pipe. Refer
to
EM-16, "AIR CLEANER AND AIR DUCT"
5.
Remove compressor-alternator belt. Refer to
6.
Remove mounting nuts from both high-pressure flexible hose
and low-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with a suitable material
such as vinyl tape to avoid the entry of air.
7.
Disconnect compressor connectors (magnet clutch and ECV).
8.
Remove mounting bolt from radiator pipe bracket.
9.
Remove high-pressure flexible hose. Refer to
"Removal and Installation of High-Pressure Flexible Hose"
.
CAUTION:
Cap or wrap the joint of the pipe with a suitable material
such as vinyl tape to avoid the entry of air.
10. Remove high-pressure pipe mounting clips.
11. Remove mounting bolts from compressor, using power tools.
12. Move radiator hose to right side of the vehicle.
13. Remove compressor from the upper side of the vehicle.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA3088E
RJIA0327E
RJIA0133E
ATC-138
REFRIGERANT LINES
CAUTION:
●
Replace low-pressure flexible hose and high-pressure flexible hose O-rings with new ones. Apply
compressor oil prior to installation.
●
When recharging refrigerant, check for leaks.
Removal and Installation of Compressor Clutch
AJS0008P
REMOVAL
Overhaul
1.
When removing center bolt, hold clutch disc with wrench.
2.
Remove clutch disc using the clutch disc puller.
3.
Remove the snap ring using external snap ring pliers.
RHA136EB
RHA399F
RHA124F
RHA138E
REFRIGERANT LINES
ATC-139
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ATC
4.
Position the center pulley puller on the end of the drive shaft,
and remove the pulley assembly using any commercially avail-
able pulley puller.
To prevent the pulley groove from being deformed, the puller
claws should be positioned at the edge of the pulley assembly.
5.
Remove the field coil harness clip using a pair of pliers.
6.
Remove the snap ring using external snap ring pliers.
Inspection
Clutch disc
If the contact surface shows signs of damage due to excessive heat,
replace clutch disc and pulley.
Pulley
Check the appearance of the pulley assembly. If the contact surface
of pulley shows signs of excessive grooving, replace clutch disc and
pulley. The contact surfaces of the pulley assembly should be
cleaned with a suitable solvent before reinstallation.
Coil
Check coil for loose connection or cracked insulation.
RHA139E
RHA125F
RHA145E
RHA126F
ATC-140
REFRIGERANT LINES
INSTALLATION
1.
Install field coil.
Be sure to align the coil’s pin with the hole in the compressor’s
front head.
2.
Install the field coil harness clip using a screwdriver.
3.
Install the pulley assembly using the installer and a hand press,
and then install the snap ring using snap ring pliers.
4.
Install the clutch disc on the drive shaft, together with the original
shim(s). Press the clutch disc down by hand.
5.
Using the holder to prevent clutch disc rotation, tighten the bolt
to 14 N·m (1.4 kg-m, 10 ft-lb) torque.
After tightening the bolt, make sure the pulley rotates smoothly.
RHA142E
RHA143EA
RHA127F
RHA086E
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