A/C Compressor

The FS-10 is a swashplate design ten-cylinder aluminum A/C compressor (19703) using the tangential design mount. The FS-10 A/C compressor has the following characteristics:

• The A/C compressor mainshaft is driven by a drive belt (8620) from the engine crankshaft pulley.
• A one-piece lip-type seal (replaceable from the front of the A/C compressor ) is used to seal it at the shaft opening in the assembly.
• Five double-acting pistons, positioned axially around the A/C compressor shaft, operate within the cylinder assembly.
• The pistons are actuated by a swashplate that is pressed on the A/C compressor shaft.
• The swashplate changes the rotating action of the shaft to provide a reciprocating driving force to each of the five pistons. This driving force is applied, through shoes, to the midpoint of each of the double end pistons.
• Reed-type discharge valves are assembled on the valve plate which is located with the suction reed valve between the cylinder assembly and the head at each end of the A/C compressor .
• The heads are connected to each other by gas-tight passageways through the cylinder assembly which direct the refrigerant gas to the suction and discharge ports located in the rear head.

The A/C clutch system operates as follows:

• A magnetic A/C clutch (2884) is used to drive the A/C compressor shaft.
• When voltage is applied to the A/C compressor clutch field coil (2987) , the A/C clutch assembly (which is solidly coupled to the A/C compressor shaft) is drawn rearward by magnetic force toward the A/C compressor clutch pulley (2E884) which rotates freely on the A/C compressor front head casting.
• The magnetic force locks the A/C clutch assembly and the A/C compressor clutch pulley together as one unit.
• The A/C compressor shaft then turns with the A/C compressor clutch pulley .
• When voltage is removed from the A/C compressor clutch field coil , springs in the A/C clutch assembly move the A/C clutch away from the A/C compressor clutch pulley . The A/C clutch assembly and A/C compressor shaft cease to rotate.