SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-8
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Ground Control Indicator Panel
(See Figure 3-3., Ground Control Indicator Panel)
1.
High Exhaust System Temperature (HEST)
Illuminates when exhaust temperature
reaches 1022° F (550° C).
2.
Engine Error Indicator
The light indicates that the JLG Control Sys-
tem has detected an abnormal condition
with the engine (a Diagnostic Trouble Code
has been set in the system memory. The
light will be solid for an engine warning condition or will
flash for an engine shutdown condition. Refer to the Service
Manual for instructions concerning the trouble codes and
trouble code retrieval) or is requesting a cleaning sequence
(Refer to Selective Catalytic Reduction in Section 4).
The system distress indicator light will illuminate momen-
tarily when the key is positioned to the on position to act as
a self test.
3.
Glow Plug Indicator
Indicates the glow plugs are operating.
After turning on ignition, wait until light
goes out before cranking engine.
4.
Axles Set Indicator
Indicates that the axles are fully extended.
The indicator will flash as the axles are
extending or retracting and be on solid
when fully extended. The light will go out
when the axles are fully retracted.
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