Compressor Clutch Hub: Service and Repair

NOTE: The A/C clutch field coil is pressed on the front head of the A/C compressor. Special service tools are required to remove and install the A/C clutch field coil.

REMOVAL

CAUTION: Do not use air tools. The A/C clutch field coil can be easily damaged.

1. Remove the A/C compressor from the vehicle.
2. Remove the A/C clutch and the A/C clutch pulley.
3. Note the location of the A/C clutch field coil electrical connector on the A/C compressor housing prior to removal so that it can be reinstalled in the same location.






4. Install the Shaft Protector for Coil Removal T89P-19623-FH on the nose opening of the A/C compressor.

CAUTION: Failure to use the Shaft Protector for the Coil Removal Tool T89P-19623-FH may result in damage to the A/C compressor making the A/C compressor unusable.
5. Install the Differential Side Bearing Puller T77F-4220-B1 or equivalent on the A/C compressor. Place the tip of the puller forcing screw in the center pilot of the shaft protector and the jaws of the puller around the back edge of the A/C clutch field coil.

NOTE: The Pulley Puller D81P-19703-B may be used as an alternative to T77F-4220-B1.

6. Tighten the puller forcing screw to pull the A/C clutch field coil from the A/C compressor head.

INSTALLATION

CAUTION: Do not use air tools. The A/C clutch field coil can be easily damaged.

1. Clean the coil mounting surface on the front head to remove any dirt or corrosion.
2. With the A/C compressor in a vertical position (nose up), place the A/C clutch field coil in position on the compressor front head. Make sure the A/C clutch field coil electrical connector is positioned correctly as noted during removal.

A/C Coil Pressing Tool - Installation:

3. Place the Coil Pressing Tool T89P-19623-EH with the Field Coil Replacer T91P-19623-CH in position over the compressor nose and to the inner radius of the A/C clutch field coil.
4. Position the 2-Jaw Puller D80L-1002-L or equivalent on the A/C compressor and coil pressing tool. The jaws of the puller should be firmly engaged with the rear side of the A/C compressor front mounts. The forcing screw must be piloted on the center mark of the pressing tool.
5. Tighten the forcing screw with a hand wrench until the A/C clutch field coil is pressed on the A/C compressor front head. Check to make sure that the A/C clutch field coil bottoms against the head at all points around the coil outer diameter.
6. Install the A/C clutch pulley and the A/C clutch on the A/C compressor.
7. Check and adjust the A/C Clutch air gap.
8. Install the A/C compressor on the vehicle.