JLG 680S Operator Manual - Manual (Page 49)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121678 – JLG Lift – 3-7
Ground Control Indicator Panel
(See Figure 3-1., Ground Control Indicator Panel.)
1. No Alternator Output Indicator
Indicates a problem in the charging circuit,
and service is required.
2. Engine Oil Pressure Indicator
Indicates that engine oil pressure is below nor-
mal and service is required.
3. High Engine Coolant Temperature Indicator
(Liquid Cooled Engines)
Indicates that engine coolant temperature is
abnormally high and service is required.
4. Engine Oil Temperature Indicator (Deutz, If
Equipped)
Indicates that the temperature of the engine
oil, which also serves as engine coolant, is
abnormally high and service is required.
5. Malfunction Indicator
Indicates that the JLG Control System has
detected a malfunction and a Diagnostic Trou-
ble Code has been set. Refer to the Service
Manual for instructions concerning the trouble codes and
trouble code retrieval.
The malfunction indicator light will illuminate for 2-3 sec-
onds when the key is positioned to the on position to act as
a self test.
6. Glow Plug/ Wait to Start Indicator
Indicates the glow plugs are on. The glow
plugs are automatically turned on with the
ignition circuit and remain on for approxi-
mately seven seconds. Start the engine only after the light
goes out.