VACUUM PUMP(When Not Using the Engine Support Bridge for AD Series Engine) ON-VEHICLE INSPECTION

PROCEDURE

1. OPERATION CHECK

   
   

   1. Disconnect the vacuum hose from the vacuum pump.

   2. 

      *a	Vacuum Gauge

      Connect the hose of the vacuum gauge to the vacuum pump.

   3. Start the engine and warm it up for more than 2 minutes.

   4. With the engine idling, check the negative pressure of the vacuum pump.

      Standard pressure
      More than 87 kPa (650 mmHg, 25.6 in.Hg)

      Tech Tips

      If the result is not as specified, replace the vacuum pump.

   5. Remove the vacuum gauge from the vacuum pump.

   6. Connect the vacuum hose to the vacuum pump.