Grove Published 3-25-2020, Control # 643-04 3-13
GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
CONTROL SEAT ASSEMBLY - SINGLE AXIS JOYSTICKS
Main Hoist Control (Single Axis Option)
The Main Hoist Control (1, Figure 3-7) is located on the right
armrest. The joystick, when pushed forward, lowers the
cable. When pulled back, it raises the cable.
Boom Lift Control (Single Axis Option)
The Boom Lift Control (2, Figure 3-7) is located on the right
armrest. The joystick, when pushed forward (lowers the
boom) or pulled back (raises the boom).
Telescope or Auxiliary Hoist Control (Single
Axis Option)
The Telescope or Auxiliary Hoist (Tele or Aux) Control
(3, Figure 3-7) is located on the left armrest. The joystick
controls the telescope functions when the crane is not
equipped with an auxiliary hoist. Push the joystick forward to
telescope the boom out, or pull the joystick back to telescope
boom in.
When equipped with an auxiliary hoist, the joystick controls
auxiliary hoist functions and telescope functions are
controlled through a foot pedal. Push the joystick forward to
let out the hoist cable or pull the lever back to reel the
cable in.
Swing Control (Single Axis Option)
The Swing Control joystick (4, Figure 3-7) located on the
right armrest, and controls the swing function. The joystick,
when positioned forward (rotates the turntable clockwise) or
back (rotates the turntable counterclockwise), actuates a
control valve through hydraulic pilot pressure to provide
360 degree continuous rotation in the desired direction.
FIGURE 3-7
Item Description
1
Main Hoist Joystick, Raise/Lower
2 Boom Lift Joystick
3 Boom Telescope or Auxiliary Hoist Joystick
4 Swing Joystick
8886
3
1
2
4
DANGER
Crushing Hazard!
Death or serious injury could result from being crushed by
moving machinery.
Before actuating swing or other functions, sound horn and
verify all personnel are clear of rotating and moving parts.
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