TROUBLESHOOTING TABLE (Continued)
TEST OR INSPECTION
11. LOW AIR WARNING LIGHT IS ON (Continued)
Step 1 (continued).
a. If AIR PRESS gage
indicates less than 76
PSI, immediately stop
tractor and go to step 2.
b. If AIR PRESS gage
indicates at least 76
PSI, and increases as
the engine is running, notify organizational maintenance
(trouble in LOW AIR warning light circuit).
Step 2. With engine running at 1200 RPM, record time required for AIR PRESS
gage reading to increase from 50 to 90 PSI.
a. If more than five minutes is required, go to step 3.
b. If less than five minutes is required, air system is operating normally.
Step 3. Stop engine, open engine hood and check air compressor V-belts at
front of engine for proper tension (approximately 1/2 inch deflection).
a. If V-belts are loose, notify organizational maintenance.
b. If V-belts are not loose, go to step 4.