JLG 600SC_660SJC Operator Manual User Manual
Page 47
SECTION 3 - MACHINE CONTROLS AND INDICATORS
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– JLG Lift –
3-13
5. Drive/Steer
Proportional dual axis joystick is provided to control
drive and steer. Push forward to drive straight forward.
The joystick is proportional, with the drive speed
increasing as the joystick is moved further from its neu-
tral position. Moving the joystick forward and to the side
steers the machine in the direction of the side displace-
ment of the joystick. With the joystick positioned all the
way to the side and slightly forward, the machine will
turn in place with one track stopped and the other one
turning the machine around the center of the stopped
track.
Moving the joystick to the side (no dislocation in the for-
ward or aft direction) will turn the machine by counter-
rotation around the center of the machine by powering
the tracks in opposite directions.
Pulling the joystick back and to the sides controls speed
and direction of drive in reverse.
NOTE:
Both drive and steer functions work in the opposite direc-
tion when the boom is positioned over front of the chassis
(over idler wheels).
NOTE:
When boom is positioned above horizontal and any of the
following switches, DRIVE SPEED/TORQUE SELECT or
FUNCTION SPEED, are positioned to HIGH, high func-
tion speeds are automatically cut out and the machine
continues to operate at a lower speed.
NOTE: The drive/steer control joystick on machines equipped
with JLG Control System software version p6.1 or higher
can only command counter-rotate by being moved in the
joystick's left - to - right axis, after first achieving the joy-
stick neutral position. For machines equipped with ver-
sion p5.12 and lower, the drive/steer joystick can be
positioned into the counter-rotate command position with-
out first achieving joystick neutral.
DO NOT OPERATE MACHINE IF DRIVE SPEED /TORQUE SELECT OR
FUNCTION SPEED SWITCHES OPERATE WHEN BOOM IS ABOVE HORI-
ZONTAL.