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Excerpted from the Ford Service CD.
The actual amount of R134a is specified on an underhood decal.
Manifold Gauge Set Connection
R-134a High Side Quick Disconnect or equivalent
176-R0037
R-134a Low Side Quick Disconnect or equivalent
176-R0036
R-134a Manifold Gauge Set or equivalent
176-R032A
WARNING:
Use extreme care and observe all safety precautions related to the use of refrigerants.
Note:
Hoses should have shutoff devices or check valves within 305 mm (12 in) of the hose end to minimize the introduction of non-condensable gases (air) into the recovery station, as well as to minimize the amount of refrigerant released when the hoses are disconnected.
Note:
Follow the equipment manufacturers procedures and instructions.
1. Turn both valves on R-134a Manifold Gauge Set all the way to the left to close the low- and high-pressure hoses to the center manifold and center hose.
2. Remove the A/C charging valve caps from the low- and high-pressure gauge port valves.
3. Connect R-134a Manifold Gauge Set low-pressure hose and R-134a Low Side Quick disconnect to the low-pressure gauge port valve.
4. Connect R-134a Manifold Gauge Set high-pressure hose and R-134a High Side Quick Disconnect to the high-pressure gauge port valve.
5. Connect the center hose to the vacuum pump or the R-134a tank.
To charge:
Keep the refrigerant cylinder in the upright position.
Connect the center hose of the manifold gauge set to a refrigerant cylinder. If a charging station is used, follow the instructions of the manufacturer.
5. CAUTION:
Do not open the high-pressure valve while the engine is running.
Start the engine and turn on the air conditioning.
6. Open the low-pressure valve on the manifold gauge set to allow the refrigerant to enter the system. Continue to add refrigerant until the proper amount is drawn into the system. Consult the vehicle specification label.
7. Close the low-pressure valve.
8. Check the A/C system for proper operation.
9. Stop the engine.
10. Disconnect the manifold gauge set.
