Ray's Auto Air & Heat -

Compressor Clutch Removal & Installation

1) Remove Center Nut From Clutch Hub (1)
    Some compressors may not have a nut in the center of the clutch hub. On these compressors
    the clutch hub is pressed on. Special Pullers and Installers will be required
    to service these clutches properly.
    Note: Some older compressors with pressed on hubs also had nuts on them.

2) Remove Hub(2) (This May Require a Puller) (Watch for shims)(3)
If the clutch hub is a pressed onto the compressor shaft there will be no shims.

3) Remove Snap Ring from Drive Pulley(4)

4) Remove Pulley (This May Require a Puller)(5)

5) Remove Snap Ring from Clutch Coil(4)
Some clutch coils may be bolted to the front of the compressor

6) Remove Coil(6)

Clutch Bearing Removal

Check around outer edge of bearing where it meets the pulley. Some clutches will use a snap ring to secure the bearing in the pulley. Some clutches will have the bearing staked in. Remove the snap ring if necessary. Press old bearing from pulley, using care to support the pulley at the outer race of the bearing, so you do not distort the pulley when removing bearing. Press new bearing into pulley using the same care not to distort the pulley. Also be careful to press on the outer race of the bearing only, so you do not damage the new bearing. Reinstall Snap Ring or Re-Stake bearing in place.

Re-Assembly Of Clutch to Compressor

1) Install Clutch Coil On Compressor
    Install Snap Ring with Beveled edge facing towards you and away from the compressor body.
    Gently tap on the ends of the snap ring with a hammer and a punch. This will seat the
    Snap Ring into the groove and hold the coil firmly to the compressor.

2) Install Clutch Pulley and Bearing Assembly the same way as the coil was installed.
The bearing should fit snugly on the nose of the compressor. If the bearing does not fit snug,
the nose of the compressor or the complete compressor will have to be replaced.

3) Install Drive Plate using necessary shims to obtain .020 to .025 air gap between drive plate and pulley.
If the drive plate was pressed on and uses no shims, then use proper Drive Plate Installer to pull
the drive plate to obtain the proper air gap.

4) Reinstall Center Nut on Clutch Hub (If Used)