Compressor Clutch Coil: Service and Repair
REMOVAL
1. Remove the clutch hub retaining nut. Use spanner wrench T81P-19623-MH, or equivalent, if necessary.
Clutch Hub Removal:
2. Remove the hub and shim(s) from the compressor shaft with Tool T80L-19703-B or equivalent. Hold the tool with a 1-inch wrench and tighten the bolt with a 1/2-inch wrench to pull the hub from the compressor shaft.
Fig. 2 Disassembled view of clutch assembly. FS-6:
3. Remove the pulley retaining snap ring.
Clutch Pulley Removal:
4. Pull the pulley and the bearing assembly from compressor. Use Tools T8OL-19703-G and D81P-19703-B or equivalent, if the pulley cannot be removed from compressor by hand.
5. Remove the snap ring connecting the clutch field coil to the front of the compressor.
6. Remove the clutch field coil from the compressor.
INSTALLATION
1. Position the clutch field coil to the compressor, engaging the locator pin on the compressor head with the hole in the clutch field coil.
2. Install snap ring to retain clutch field coil on the compressor with bevel side of the snap ring out.
3. Clean the pulley bearing surface of the compressor head to remove any dirt or corrosion.
Clutch Pulley Installation:
4. Install the pulley and bearing on the compressor. The bearing is a slip fit on the compressor head and, if properly aligned, should slip on the compressor head. If difficulty is encountered installing the pulley, gently tap the pulley on the compressor using Tool T80L-19703-J or equivalent. Be sure the pulley bearing is aligned with the compressor head.
5. Install the pulley retaining snap ring with the bevel side of the snap ring out.
Clutch Hub Installation:
6. Using the two thickest shims between the hub and the end of the compressor shaft align the shaft key with the keyway in the hub and install the hub on the compressor shaft. Use Tool T80L-19703-F or equivalent to press the hub on the shaft if necessary. Do not attempt to drive the hub on the compressor shaft as damage to the compressor will result. Use only the specified tool if the hub will not easily slide on the shaft.
7. Install the hub retaining nut on the compressor shaft and tighten the hub retaining nut to 13-23 Nm (10-14 ft lb).
Checking Clutch Air Gap:
8. Check and record the air gap between the hub and the mating pulley surfaces in three locations equally spaced around the pulley.
9. Rotate the compressor or pulley 1/2 turn (180 degrees) and again check the air gap in three equally spaced locations. The smallest air gap must be within 0.021-0.036 inch. Add or remove shims as necessary until the smallest air gap is within specification.