Compressor Clutch: Service and Repair

COMPRESSOR

Removal and Installation for Compressor Clutch











NOTE:
Illustrations for removal and installation are shown with the compressor out of the vehicle for clarity.

REMOVAL

1.Remove the engine room cover (VQ-40DE only). Service and Repair.
2.Remove the cooling fan. Removal and Installation (Crankshaft Driven Type) (QR-25DE), Removal and Installation (Crankshaft Driven Type) (VQ-40DE).





3.Remove the center bolt while holding the clutch disc stationary using Tool as shown.
Tool number: J-44614

4.Remove the clutch disc and shims.

CAUTION:
Retain the shims for installation.





5.Remove the snap ring using a suitable tool.





6.Remove the pulley using Tool (A) (QR-25DE), or suitable tool (A)
(VQ-40DE).
Tool number (QR-25DE only): KV-99233130 (J-29884)

CAUTION:
To prevent deformation of the pulley groove, the puller claws should be hooked under the pulley groove and not into the pulley groove.





7.Remove the magnet coil snap ring (A) using a suitable tool and remove the magnet coil (1).

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 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 magnet coil for loose connections or any cracked insulation. Replace as necessary.

INSTALLATION






1.Install the magnet coil and snap ring using a suitable tool.

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





2.Install the pulley assembly using Tool and a wrench, then install the snap ring using a suitable tool.
Tool number:-(J-38873-A)





3.Install the clutch disc on the compressor shaft, together with all of the original shim(s) using a suitable tool. Press the clutch disc in by hand.





4.Install the clutch pulley bolt while using Tool to prevent the clutch disc from turning and tighten the bolt to specification.

Tool number: J-44614

CAUTION:
After tightening the clutch pulley bolt, check that the clutch pulley rotates smoothly.
5.Check the pulley clearance all the way around the clutch disc as shown.

Clutch disc-to-pulley clearance: 0.3 - 0.6 mm (0.012 - 0.024 in)

6.If the specified clearance is not obtained, replace the adjusting spacer to readjust.
7.Install the cooling fan.
8.Install the engine room cover (VQ-40DE only). Service and Repair.






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.