Air Conditioning: Overhaul Jaguar S-type I

A/C Compressor and Clutch Assembly

Note. Internal A/C compressor components are not serviced separately. The A/C scroll compressor is serviced only as an assembly.

The A/C compressor has the following characteristics

Scheme 94

1. A variable capacity function controlled by a suction pressure device.
2. Displacement of 90cc (5.5 cubic inch).
3. A fixed and orbiting scroll to provide refrigerant compression.
4. A non-serviceable shaft seal.

The magnetic A/C clutch has the following characteristics

1. It drives the compressor shaft.
2. When battery positive voltage is applied to the A/C clutch field coil, the clutch disc and hub assembly is drawn toward the A/C clutch pulley.
3. The magnetic force locks the clutch disc and hub assembly and the A/C clutch pulley together as one unit, causing the compressor shaft to rotate.
4. When battery positive voltage is removed from the A/C clutch field coil, springs in the clutch disc and hub assembly move the clutch disc away from the A/C clutch pulley.