Output pressure calibration

NOTE:

Perform the following calibration when assembling the evaporative emission system tester or replacing the pressure regulator.
Once you make this adjustment, you should not have to adjust the tester's regulator again, unless you change the pressure regulator.

Connect the power cables (1) from the tester to a fully charged 12V battery.
Attach the nitrogen/smoke hose (2) to the self-test port (3).
Set the NITROGEN/SMOKE valve (4) on the front control panel to NITROGEN.
Press and release the remote switch (5) to activate the tester.
NOTE: The remote switch operates in a push ON, push OFF fashion.

Fig 1: Starting Output Pressure Calibration
Courtesy of SUZUKI OF AMERICA CORP.
Check whether the pressure/vacuum gauge of evaporative emission system tester indicates 13 in. H2O. If it does not perform the following regulation.
1. Remove the plastic cap (1) from the regulator located on the bottom of the tester.
  
  Fig 2: Removing Plastic Cap
  Courtesy of SUZUKI OF AMERICA CORP.
2. Press and release the remote switch.
  CAUTION: Carefully adjust the pressure regulator. Turning the regulator plunger too far clockwise will cause the plunger to lock up, turning the regulator plunger too far counter clockwise will cause the plunger and spring to fall out of the regulator.
3. Use a flat-blade screwdriver to adjust the regulator plunger until the pressure/vacuum gauge reads 13 in. H2O pressure.
4. Disconnect and reconnect the nitrogen/smoke hose from the self-test port.
5. Press and release the remote switch.
6. Verify pressure is at 13 in. H2O. If not, repeat Steps b to f), as necessary.
7. Press and release the remote switch to deactivate the tester.
8. Replace the plastic cap on the regulator, and disconnect the nitrogen/smoke hose from the self-test port.