GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Refrigerant Lubricant | |
| PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) | WSH-M1C231-B |
| O-Ring Lubricant | |
| Refrigerant Compressor Oil (Mineral Oil) F73Z-19577-AA (Motorcraft YN-9-A) | ESH-M2C31-A2 |
GENERAL SPECIFICATIONS
TORQUE SPECIFICATIONS
| Description | Nm |
|---|---|
| Compressor manifold bolt | 20 |
| Compressor mounting bolts | 25 |
| Wire harness bracket nut | 47 |
| A/C clutch disc and hub nut | 20 |
| Battery tray bolts | 28 |
| Oil filler tube bolt | 10 |
| Junction box bracket bolts | 28 |
| Evaporator outlet fitting | 39 |
| Compressor manifold and tube suction fitting bracket screw | 2 |
| Evaporator inlet fitting bracket screw | 2 |
| Compressor manifold and tube suction fitting | 47 |
| Evaporator inlet fitting | 18 |
| Condenser fittings (4.6L, 5.4L and 6.8L engines) | 39 |
| Condenser fittings (6.0L Diesel) | 8 |
| Suction accumulator bolts | 14 |
| Radiator bracket bolts | 20 |
| Condenser bracket bolts | 12 |
TORQUE SPECIFICATIONS
The A/C refrigerant system is a clutch cycling orifice tube type. The system components are
- A/C compressor (19703)
- A/C clutch
- Condenser core (19712)
- Evaporator core (19860)
- Suction accumulator (19C836)
- Connecting refrigerant lines
The refrigeration system operation is controlled by the
- Evaporator core orifice (19D990).
- A/C cycling switch (19E561).
- A/C pressure relief valve (19D644).
- Pressure cutoff switch (19D594).
The refrigerant system incorporates and A/C compressor controlled by an A/C cycling switch and refrigerant containment switch (high-pressure cutoff switch). The A/C cycling switch senses low-side refrigerant pressure to control A/C compressor operation and prevent evaporator core freeze up. The refrigerant containment switch senses high-side refrigerant pressure to interrupt A/C compressor operation in the event of excessively high refrigerant pressure.
An A/C pressure relief valve is installed in the compressor manifold and tube assembly (19D734) to protect the refrigerant system against excessively high refrigerant pressures.
An evaporator core orifice is installed in the evaporator core inlet tube to meter the liquid refrigerant into the evaporator core.
See also:
• JACKING & LIFTING