Diesel Data: Automotive Repair

Removal


1. Remove drive belt from pulley and disconnect field coil wiring.



Fig. 1 Compressor Assembly Exploded View:





2. Use a suitable spanner wrench to hold clutch hub and remove retaining nut, Fig. 1.
3. Place a suitable puller over end of shaft, install three bolts into the 1/4-20 holes in clutch hub, and pull hub from shaft.
4. Remove shaft key and shims from compressor shaft.
5. Remove pulley bearing internal and external snap rings, then install suitable rotor pulley puller into rotor cavity so that lips on puller jaws engage snap ring groove adjacent to outer race of bearing. Remove rotor pulley from compressor.
6. Remove field coil retaining screws and pull coil assembly from compressor housing.

CLUTCH BEARING

1. Remove bearing retaining ring.
2. Remove bearings using suitable press.
3. Reverse procedure to install. Bearings must be installed with black shields facing each other and colored shields facing outward. Install until fully seated.