JLG 80HX_HX+6 Operator Manual - Manual (Page 47)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-12 – JLG Lift – 3120890
7. Telescope.
The MAIN TELESCOPE control switch or MAIN
TELESCOPE control lever (hydraulic controls) pro-
vides extension and retraction or the boom when
positioned to in or out.
8. Steer/Axles/Jack.
On standard machines, positioning the STEER/
AXLES/JACK control switch right or left enables
steering the machine to the right or to the left.
On machines equipped with hydraulic jacks and/or
hydraulic extendable axles, the function the switch
controls is dependent upon the position of the
JACK/STEER/AXLES SELECT switch.
NOTE: On machines equipped with four wheel steering, the
drive controller will have a thumb-rocker switch con-
trolling rear wheel steering.
9. Swing.
The SWING controller provides 360 degrees contin-
uous swing when positioned to left or right.
NOTE: When the boom is above horizontal and if either the
ENGINE SPEED, PUMP VOLUME, or WHEEL
SPEED are positioned to high, high speed functions
are automatically cut out and the machine continues
to operate at a lower speed.
DO NOT OPERATE MACHINE IF HIGH ENGINE SPEED, HIGH
WHEEL MOTOR SPEED, OR HIGH PUMP VOLUME OPERATE
WHEN BOOM IS ABOVE HORIZONTAL.
10. Engine Speed.
The two position ENGINE SPEED control switch
allows the operator to select higher function speeds
or higher drive speed when in the high position.
11. Wheel Speed.
The two position WHEEL SPEED control switch
allows the operator to select high wheel motor
speed when in the high position. When used in con-
junction with high ENGINE SPEED, it gives the
machine a faster drive speed.
TO AVOID PERSONNEL INJURY OR MACHINE DAMAGE, USE
SLOW FUNCTION SPEED CONTROL WHEN POSITIONING THE
PLATFORM IN CLOSE QUARTERS.
12. Pump Volume.
The two-position PUMP VOLUME control switch
allows the operator to select high pump flow, pro-
viding additional speed to all functions when in the
high position. When used in conjunction with high
ENGINE SPEED and WHEEL MOTOR SPEED
switches, it gives the machine a faster drive speed
range.
13. Creep.
The CREEP control switch allows the operator to
select a lower speed for DRIVE, LIFT, SWING and
TELESCOPE, when in the on position.
14. Drive.
The DRIVE controller provides driving either forward
or backward when positioned to forward or reverse.
The controller is ramped to allow infinitely variable
driving speed between fast and slow.
NOTE: On machines with four wheel steering, the Drive con-
troller will have a thumb-rocker switch controlling
steer of the rear wheels.
15. Platform Level.
The platform LEVEL control switch allows the oper-
ator to compensate for any difference in the auto-
matic self-leveling system by positioning the switch
up or down.