JLG 600SC_660SJC Operator Manual - Manual (Page 38)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-6 – JLG Lift – 3120897
NOTE: With the Platform/Ground Select Switch in the center
position, power is shut off to controls at both operat-
ing stations.
NOTE: Main Lift, Swing, Platform Level, Main 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 PER-
SONNEL AROUND OR UNDER PLATFORM.
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY
CONTROL LEVERS OR TOGGLE SWITCHES CONTROLLING
PLATFORM MOVEMENT DO NOT RETURN TO THE OFF POSITION
WHEN RELEASED.
4. Main Lift Control.
The MAIN LIFT control switch provides raising and
lowering of the main boom when positioned to UP or
DOWN.
5. Main Telescope Control.
The MAIN TELESCOPE control switch provides
extension and retraction of the boom, when posi-
tioned to IN or OUT.
6. Swing Control.
The SWING control switch provides 360 degrees
continuous turntable rotation when positioned to
RIGHT or LEFT.
7. Hourmeter.
An hourmeter, installed in the top portion of the
Ground Control box, registers the amount of time
the machine has been in use, with engine running.
By connecting into the oil pressure circuit of the
engine, only engine run hours are recorded. The
hourmeter registers up to 9,999.9 hours and cannot
be reset.
8. Platform Rotate.
A three position ROTATE control switch permits rota-
tion of the platform when positioned to LEFT or
RIGHT.
9. Platform Leveling Override.
A three position LEVEL control switch allows the
operator to compensate for any difference in the
automatic self leveling system by positioning the
control switch to UP or DOWN.
10. Articulating Jib Boom. (If Equipped)
The ARTICULATING control switch provides raising
and lowering of the jib when positioned to UP or
DOWN.
11. Drive Disabled Indicator.
When illuminated, the drive function has been dis-
abled. (Refer to Drive Function Operating Range
Diagrams in Section 2).
Figure 3-3. Ground Control Indicator Panel