JLG 660SJ Operator Manual - Manual (Page 41)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121297 – JLG Lift – 3-7
NOTE: Lift, Swing, Platform Level, Telescope, Platform Rotator
and Auxiliary control switches are spring-loaded and will
automatically return to neutral (off) when released.
WHEN OPERATING THE BOOM ENSURE THERE ARE NO PERSONNEL
AROUND OR UNDER PLATFORM.
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY CON-
TROL LEVERS OR TOGGLE SWITCHES CONTROLLING PLATFORM
MOVEMENT DO NOT RETURN TO THE OFF POSITION WHEN RELEASED.
9. Swing Control
Provides 360 degrees continuous
turntable rotation.
10. Telescope Control
Provides extension and retraction of
the boom.
Ground Control Indicator Panel
(See Figure 3-3.)
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
normal 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)
Indicates that the temperature of the engine
oil, which also serves as engine coolant, is
abnormally high and service is required.