JLG 800AJ HC3 Operation & Safety Manual page 57

Engine Error
Indicates a fault with the engine and service is required or is requesting a cleaning sequence.
Footswitch Enable
To operate any function, the footswitch must be pressed down and the function selected within
seven seconds. The enable indicator shows that the controls are enabled. If a function is not
selected within seven seconds, or if a seven second lapse between ending one function and
beginning the next function, the enable light will go out and the footswitch must be released
and pressed again to enable the controls.
Releasing the footswitch removes power from all controls and applies the drive brakes.
To avoid serious injury, do not remove, modify or disable the footswitch by
blocking or any other means.
Fuel Gauge
Indicates the level of the fuel in the fuel tank.
Glow Plug
Indicates the glow plugs are operating. After turning on ignition, wait until light goes out
before cranking engine.
Platform Overload
Indicates the platform has been overloaded.
800AJ HC3
WARNING
31222411
Machine Controls and Indicators
F
½
E
57