Escape 4WD V6-181 3.0L DOHC VIN 1 Duratec (2003)
Compressor Clutch: Description and Operation
A/C compressor and Clutch Assembly
NOTE:
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Internal A/C compressor components are not repaired separately. Install a new FS-10 A/C compressor only as an assembly. The A/C clutch, A/C
clutch pulley, A/C clutch field coil and the shaft seals are repairable.
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Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of
system contamination from a failed A/C compressor or damage to the suction accumulator.
The FS-10 A/C compressor has the following characteristics:
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a 10-cylinder swashplate design utilizing the tangential design mount
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displacement of 170 cc (10.4 cubic inches)
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A one-piece lip-type seal (repaired from the front of the A/C compressor) is used to seal it at the shaft opening in the assembly.
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Five double-acting pistons operate within the cylinder assembly. The pistons are actuated by a swashplate that changes the rotating action of the
shaft to a reciprocating force.
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Reed-type discharge valves are located between the cylinder assembly and the head at each end of the A/C compressor.
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The A/C compressor uses PAG Compressor Oil YN-12-C or equivalent meeting Ford specification WSH-M1C231-B. This oil contains special
additives necessary for the A/C compressor.
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The A/C compressor oil from vehicles equipped with an FS-10 A/C compressor may have a dark color while maintaining a normal oil viscosity.
This is normal for this A/C compressor because carbon from the piston rings will discolor the oil.
Compressor Clutch Components
The magnetic A/C clutch has the following characteristics:
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It drives the compressor shaft.
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When battery positive voltage (B+) is applied to the A/C clutch field coil, the clutch disc and hub assembly is drawn toward the A/C clutch pulley.
