2. Perform the “Normal Power-up Procedure” detailed in the Appendix, starting on page 39.
3. Enter “SELF CAL” in the VIN location in the Trailer Information Panel, which is the left side of
the display shown on the GUI, and pick “Self Calibration” in the Configuration box on the
Trailer Information Panel.
4. On the GUI, select “Air Leak”, “121 Timing” (and “Differential” if you will be testing a vehicle
that is designed to tow other vehicles). Then click ‘START’ on the GUI. The Internal Air Leak
test will start.
5. If the Internal Air Leak test
FAILS:
FAIL = >2 POUNDS SERVICE
FAIL = >3 POUNDS EMERGENCY
5a.
Select “Retry” on bottom right corner of Air Leak test page in the GUI.
5b. If it fails a 2
nd
time, pick “Cancel All Tests” on the left edge of the GUI and continue.
5.c.
Engage the EMERGENCY and SERVICE air lines to get air into the system. Soap-test
the blocked-off glad-hands, external fittings and internal fittings as needed to locate the source
of the leak(s) and continue.
5d.
Tighten fittings and thread seal them as needed and continue.
5e.
Select ”START” again (as in step 4). If this retry fails, call LITE-CHECK for assistance.
If the Internal Air Leak test passes, the Tester will advance to the 121 Timing Test.
Lite-Check CERTIFIER 1200 Operations Manual
1.
Connect a sensor to any
of the hub ports and the
quick-disconnect of the
50 CI Canister
Assembly.
2.
Connect the service glad
hand to the glad hand of
the 50 CI Canister
Assembly.
10
3.
Block off the emergency
air line from the tester
using the “Gladhand
Shutoff with Chain”,
PN 20053.
Performing the Internal Air Leak Self-test, without being attached to a trailer or dolly:
1. Check that Certifier glad-hands are secure and tightly blocked off. See the picture and
instructions below to accomplish this. Be sure that the Certifier and the hub are powered
off whenever a sensor is attached or removed from any test hardware or a trailer.
This is the end of Internal Air Leak Self-Test, without being attached to a trailer or dolly.
