Compressor Clutch: Service and Repair

COMPRESSOR

MAGNET CLUTCH : Removal and Installation of Compressor Clutch


REMOVAL

1.Remove the compressor. Refer to "COMPRESSOR : Removal and Installation" Removal and Installation.
2.Remove the center bolt by holding the clutch disc steady using a suitable tool.
3.Remove the clutch disc and shims.

CAUTION:
- Retain all the shims for installation.
Revision: March 20122013 Infiniti JX





4.Remove the snap ring using a suitable tool as shown.





5.Remove the pulley assembly using a suitable tool (A) as shown.

CAUTION:
To prevent deformation of the pulley groove, the puller claws should be hooked under (not into) the pulley groove.
6.Disconnect the magnet coil harness.





7.Remove the three magnet coil screws using a suitable tool as shown, then remove the magnet coil.

INSPECTION AFTER REMOVAL






- Shim (1)
- Snap ring (2)
- Clutch disc (3)
- Pulley (4)
- Magnet coil (5)
- Center bolt (A)
- Magnet coil screws (B)
Clutch Disc
If the contact surface shows signs of damage due to excessive heat, replace the clutch disc and pulley.
Pulley
Check the appearance of the pulley assembly. If the contact surface of the pulley shows signs of excessive grooving, replace the clutch disc and pulley. The contact surfaces of the pulley assembly should be cleaned with a suitable solvent before installation.
Magnet Coil
Check the magnet coil for a loose connection or cracked insulation. Replace as necessary.
Revision: March 20122013 Infiniti JX

INSTALLATION






1.Install the magnet coil by aligning the magnet coil pin (A) with the hole (B) in the compressor front head as shown, then install the magnet coil screws.
-: Vehicle rear

CAUTION:
- Be sure to align the magnet coil pin with the hole in the compressor front head.
2.Connect the magnet coil harness.





3.Install the pulley assembly using Tool and a wrench as shown, then install the snap ring using a suitable tool.










4.Install the clutch disc (1) on the drive shaft, together with all of the original shim(s) (2) using a suitable tool (A).
5.Install the center bolt using a suitable tool.
6.Install the compressor. Refer to "COMPRESSOR : Removal and Installation" Removal and Installation.

INSPECTION AFTER INSTALLATION

Revision: March 20122013 Infiniti JX





Check the clearance (B) all the way around between the clutch disc (1) and pulley (2) using a suitable tool (A) as shown.





If the specified clearance (B) is not obtained, replace the adjusting shim(s) and recheck the clearance (B) as shown.

BREAK-IN OPERATION

When replacing compressor clutch assembly, always conduct the break-in operation. This is done by engaging and disengaging the clutch about 30 times. Break-in operation raises the level of transmitted torque.
Revision: March 20122013 Infiniti JX