JLG 660SJ Operator Manual - Manual (Page 41)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121205 – JLG Lift – 3-5
Ground Control Indicator Panel
(See Figure 3-2. and Figure 3-3.)
1. Battery Charging Indicator
Indicates a problem in the battery or charging circuit,
and service is required.
2. Low Engine Oil Pressure Indicator
Indicates that engine oil pressure is below normal and
service is required.
3. High Engine Coolant Temperature (Ford and
Continental) Indicator
Indicates that engine coolant temperature is abnormally
high and service is required.
4. High Engine Oil Temperature Indicator (Deutz)
Indicates the temperature of the engine oil, which also
serves as engine coolant, is abnormally high and ser-
vice is required.
5. Engine Malfunction Indicator Light (Ford Engines
S/N 48907 to S/N 61927 - refer to ADE System Identifica-
tion page at the front of the book)
Indicates that the Engine Control Module has detected a
malfunction in the Electronic Fuel Injection System and
a Diagnostic Trouble Code has been set in the ECM.
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. Low Fuel Level Indicator
Indicates that the fuel level is 1/8 full or less. When the
light first turns on, there are approximately four usable
gallons of fuel remaining.
7. Glow Plug Indicator (Diesel)
Indicates glow plugs are on. The glow plugs are auto-
matically turned on with the ignition circuit and remain
on for approximately about seven seconds. Start the
engine only after the light goes out.