JLG 600SC_660SJC Operator Manual - Manual (Page 48)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-14 – JLG Lift – 3121156
6. Main Telescope
This control allows extension and retraction of the main
boom.
7. Articulating Jib
Push forward to lift up, pull back to lift down. Variable lift
speed is using the Function Speed Control.
8. Platform Rotate
This switch allows the operator to rotate the basket to
the left or right.
9. Function Speed Control
Controls the speed of Boom and Swing Functions.
Rotate CCW for slower speed and CW for faster speed.
To adjust to creep, turn knob fully CCW until it clicks.
10. Main Lift/Swing Controller
An infinitely proportional dual axis joystick is provided
for main lift and swing. Push forward to lift up, pull back-
ward to lift down. Move right to swing right, move left to
swing left.
NOTE: Main lift and swing functions may be selected in combina-
tion. The handle features a round gate so that maximum
speed is reduced when multiple functions are selected.
11. Drive Speed/Torque Select
The machine has a three position switch.
The forward position gives maximum drive speed by
shifting the drive motors to minimum the displacement
and giving high engine when drive controller is moved.
The back position gives maximum torque for rough ter-
rain, climbing grades, and sharp turns. In this position,
the motors are shifted to maximum displacement and
the engine in high speed when the drive controller is
moved.
The center position allows the machine to be driven as
quietly as possible by leaving the engine at mid speed
and the drive motors in maximum displacement.