Shutdown Procedure; Air Shutoff Valve (Asov) (If Equipped) - JLG 800a Operation And Safety Manual

SECTION 4 - MACHINE OPERATION
7. Push the Engine Start switch until engine starts.
NOTE: Footswitch must be in released (up) position before starter will
operate. If starter operates with footswitch in the depressed posi-
tion, DO NOT OPERATE MACHINE.

Shutdown Procedure

IF AN ENGINE MALFUNCTION CAUSES AN UNSCHEDULED SHUTDOWN, DETERMINE
THE CAUSE AND CORRECT IT BEFORE RESTARTING THE ENGINE.
1. Remove all load and allow engine to operate at low speed
for 3-5 minutes; this allows further reduction of internal
engine temperature.
2. Push Power/Emergency Stop switch in.
3. Turn Platform/Ground Select switch to Off.
Refer to Engine Manufacturer's manual for detailed
information.
4-6

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.
ASOV
TEST
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