General Description

COMPRESSOR OPERATION
All compressors are belt driven from the engine crankshaft through the compressor clutch pulley. The compressor pulley turns freely, without turning the compressor shaft, until an electro-magnetic clutch coil is energized. When voltage is applied to energize the clutch coil, a clutch plate and hub assembly is drawn rearward toward the pulley. The magnetic force locks the clutch plate and pulley together as one unit to drive the compressor shaft.

COMPRESSOR FUNCTIONS
As the compressor shaft turns, the compressor performs two main functions. It compresses the low-pressure refrigerant vapor from the evaporator into a high-pressure, high-temperature vapor. It also pumps refrigerant (and refrigerant oil) through the A/C system.