Compressor Clutch: Service and Repair

Compressor Clutch

REMOVAL

Overhaul







1. When removing center bolt, hold clutch disc with a wrench.




2. Remove clutch disc using the clutch disc puller.




3. Remove snap ring using external snap ring pliers.




4. Position center pulley puller on the end of the driveshaft, and remove pulley assembly using any commercially available 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 field coil harness clip using a pair of pliers.




6. Remove snap ring using external snap ring pliers.

INSTALLATION
1. Install field coil.
Be sure to align coil pin with hole in the front head of the compressor.




2. Install field coil harness clip using a screwdriver.




3. Install pulley assembly using the installer and a hand press, and then install snap ring using snap ring pliers.




4. Install clutch disc on the drive shaft, together with the original shim(s). Press the clutch disc down by hand.




5. Using a holder to prevent clutch disc rotation, tighten the bolt to 14 Nm (1.4 kg-m, 10 ft-lb) torque.
After tightening the bolt, insure the pulley rotates smoothly.




6. Check clearance around the entire periphery of clutch disc.

Disc to pulley clearance: 0.25 - 0.6 mm (0.010 - 0.024 in)

If the specified clearance is not obtained, replace adjusting spacer and readjust.

Break-In Operation
When replacing compressor clutch assembly, always carry out the break-in operation. This is done by engaging and disengaging the clutch about thirty times. Break-in operation raises the level of transmitted torque.