PIN-TRACK 1090477 - Caterpillar

Illustration 5 g01330553
Valve (9) Inlet screen
Carefully inspect inlet screen (9). Remove any debris from the inlet screen.
Install the valve.
Run the "Air System Verification Test".
Illustration 6 g01330555
Typical valve assembly and actuator (4) Valve assembly (6) Actuator
Replace actuator (6) if the flapper does not rotate smoothly. Replace valve assembly (4) if the flapper rotates smoothly.STOPTest Step 9. Inspect the Hoses for the Sensors
Inspect the small rubber hoses near the sensors for the CGI system. Look for cuts or other damage.Expected Result:The hoses are OK.Results:
Yes - The hoses are not cut or damaged. Proceed to Test Step 10.
No - A hose is cut or damaged.Repair: Replace the damaged parts. Run the "Air System Verification Test". Verify that the CGI flow is within the acceptable range during the test.STOPTest Step 10. Inspect the VenturiRemove the venturi. Inspect the holes on the inside of the venturi.Expected Result:The holes are clean.Results:
Yes - The holes are clean.Repair: Replace actuator (6) and valve assembly (4). Run the "Air System Verification Test". Verify that the CGI flow is within the acceptable range during the test.STOP
No - The holes are restricted.Repair: Carefully clean the venturi. Replace the venturi, if necessary. Run the "Air System Verification Test". Verify that the CGI flow is within the acceptable range during the test.STOP