SECTION 4 - MACHINE OPERATION
31215066
4-9
Air Shutoff Valve (ASOV) (If Equipped)
Air Shutoff Valve (ASOV) is an overspeed protection device
mounted to the engine’s air intake system. When the valve is
actuated, it obstructs airflow intake and stops the engine. Weekly
tests are recommended to ensure the valve remains in good
working condition.
1.
Start the engine, running at idle.
2.
Open the red switch guard on ASOV test switch, then acti
-
vate toggle to test mode.
NOTE:
Test switch is located under hood to the left of
the ground control panel (look for test decal).
3.
At the ground control panel, select any
function and activate until valve actuates
at test RPM of 1500. Once valve actuates,
engine will stop.
4.
Turn ignition to OFF.
5.
Visually inspect valve to ensure it appears in good condition.
6.
Reset valve by rotating valve handle to the Open position.
NOTE:
The handle cannot be turned unless the machine is off. Ensure
the ignition is moved to the OFF position.
DO NOT USE ASOV AS AN ALTERNATIVE TO SHUTTING DOWN MACHINE PROPERLY.
ASOV
TEST
1001227964A
Figure 4-3. ASOV Reset (Closed to Open Position)
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