Operating Instructions - Snap-on Equipment

PC Maintenance2. Place the probe cap on the exhaust probe.3. Select the Start Test button to begin the leak check.Figure 3G-6: Leak Check In Progress ScreenA visual indication shows that the leak check is in progress. When the leakcheck is completed a message displays with the result.Figure 3G-7: Leak Check Successful Screen4. When the leak check has successfully completed, remove the probe capfrom the exhaust probe.5. Select Exit to continue using FGA.If the leak check fails,Figure 3G-8: Leak Check Complete Screen1. Verify that the sample hose, probe, and all sample fittings do not containany leaks.2. Remove the hose from the sample port on the filter and seal the inlet.Rerun the leak check. If it now passes, the vehicle sample hose or probehas a leak. If it fails again, go to Step 3.3. Remove the hose from the top fitting on the right of the sample filter bowland seal it. Repeat the leak check. If it now passes, the filter bowl isleaking and needs repair. The most likely problem is the o-ring seal.✓ After a successful leak check, it may be necessary to remove thehose discussed in Step 3 to relieve the system vacuum and allowthe pump to run.3G-4