Connect The Gauge Set

WARNING: This page is about a different car, the 2001 Subaru Forester and 2000 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Close the high and low-pressure manifold valves.

Fig 1: Closing High & Low-Pressure Manifold Valve
Attach the low-pressure manifold hose to the low-pressure service port on the vehicle. Check the low-pressure gauge. If more than 68.6 kPa (0.70 kg/cm² , 10 psi) is indicated, discharge the system prior to charging.
Attach the high-pressure manifold hose to the high-pressure service port on the vehicle.
Connect the center hose from the manifold to the vacuum pump.
Turn on the vacuum pump.
Slowly open the low-pressure manifold valve.

Fig 2: Identifying Set-Up; Gauge Set Manifold To Vacuum Pump
When the low-pressure gauge reaches approximately 66.43 kPa (498.3 mmHg, 19.62 inHg), slowly open the high-pressure manifold valve.
Maintain a minimum vacuum level of 100.56 kPa (754.4 mmHg, 29.70 inHg) for a minimum of 15 minutes on a new system or 30 minutes for an in-service system.
NOTE: The gauge will read 3.3 kPa (25 mmHg, 1 inHg) less for every 304.8 m (1,000 ft) above sea level.

Fig 3: Reading Gauges Under Vacuum