Discharging and Recovery

Special Tool(s)

	R-134a A/C Service Center 176-00002 or equivalent
	R-134a A/C Refrigerant Center 023-00153 or equivalent
	R-134a Manifold Gauge Set 176-R032A or equivalent

1. Prior to recovering or charging the refrigerant system, you must verify the purity of the refrigerant. For additional information, refer to the Refrigerant Identification Testing in this section.

2. NOTE: Some R-134a service centers require the use of an A/C manifold gauge set. For additional information, refer to the Manifold Gauge Set Connection in this section.

   Connect the R-134a A/C Refrigerant Center to the low and high pressure service gauge port valves.

3. Recover the refrigerant from the system following the operating instructions provided by the equipment manufacturer.

4. Once the service center has recovered the vehicle A/C system refrigerant, close the service center inlet valve (if so equipped). Then switch off the power supply.

5. Allow the vehicle A/C system to remain closed for about two minutes. Observe the system vacuum level as shown on the gauge. If the pressure does not rise, disconnect the recovery station hose(s).

6. If the system pressure rises, repeat Steps 2 through 5 until the vacuum level remains stable for two minutes.

7. Carry out the required repairs, then evacuate and recharge the A/C system. For additional information, refer to the Air Conditioning (A/C) System Evacuation And Charging procedure in this section.