Compressor Clutch: Service and Repair

COMPRESSOR CLUTCH ASSEMBLY REPLACEMENT

TOOLS REQUIRED
- J 45267 Clutch Holding Tool
- J 25031-A Three Jaw Puller
- J 45504 Clutch Pulley Installer

REMOVAL PROCEDURE
1. Remove the compressor from the vehicle.




2. Use J 45267 to hold the disk and hub assembly.
3. Remove the nut retaining the disk and hub assembly to the compressor.




4. Remove the spacer from the pulley.




5. Remove the snap ring from the pulley.
6. Using J 25031-A, remove the A/C Clutch Pulley from the compressor.




7. Remove the thermal switch from the compressor:
1. Remove the hold down bracket bolt.
2. Remove the hold down bracket.
3. Gently twist and pull the thermal protection switch from the compressor. Use a small screwdriver to gently pry the switch from the compressor.




8. Remove the field coil snap ring.




9. Remove the A/C clutch field coil.

INSTALLATION PROCEDURE




1. Clean the A/C clutch field coil and the pulley mounting surfaces.
2. Install the A/C clutch field coil.




3. Install the field coil snap ring to the compressor.

IMPORTANT: Ensure that the field coil snap ring is installed with the bevel side out.




4. Install the thermal switch to the compressor:
1. Clean the thermal switch pocket if necessary.
2. Install the thermal switch sealant in switch pocket.
3. Install the thermal switch, pushing into place to wet out sealant. Remove any excess sealant.
4. Install the hold down bracket.
5. Install the hold down bracket bolt.

Tighten the bolt to 6 N.m (53 lb in).

NOTE: Refer to Fastener Notice in Service Precautions.




5. Use J 45504 if necessary, to align the clutch bearing/pulley assembly over the hub and gently tap to install.

IMPORTANT: The A/C clutch bearing and pulley is a slip fit on the compressor. If correctly aligned it should slip on easily. If difficulty is encountered, install using the pulley installer.




6. Install the snap ring to the pulley.

IMPORTANT: Ensure that the pulley snap ring is installed with the bevel side out.




7. Install the spacer.




8. Align the disk/hub assembly with the shaft and install to the compressor.

IMPORTANT: Be sure to align the block tooth on disk/hub assembly with groove in shaft.

9. Install the old clutch nut to the compressor.
10. Using a feeler gage, check the clearance between the disk/hub assembly and the pulley. Ensure the clearance is 0.35 mm to 0.75 mm (0.014 in to 0.030 in).
11. If necessary, adjust the clearance by adding or subtracting clutch hub spacers.




12. Once the correct air gap is obtained, install new clutch nut.




13. Tighten the clutch nut.

Tighten the nut to 26 N.m (19 lb ft).

14. Install the compressor to the vehicle.