
PartNo.216596 GR-20J•GR-26J 15
Operator'sManual
Second Edition • First Printing
Controls
PlatformControl Panel
1 Jib boom function button with indicator light
Push the jib boom function button to select the
jib boom function. The indicator light will be on.
2 Mast function and turntable rotate function
buttonwith indicator light
Push the mast function and turntable rotate
function button to select the mast and turntable
rotate functions. The indicator light will be on.
3 Drive function button with indicator light
Push the drive function button to select the drive
and steer function. The indicator light will be on.
4 RedEmergency Stopbutton
Push in the red Emergency Stop button to the
off position to stop all functions. Twist the red
Emergency Stop button to the on position to
operatethemachine.
5 Driveenableindicatorlight
Light on indicates that the boom has moved just
pasteithernon-steer wheel anddrivefunction
hasbeeninterrupted.
6 Platformoverloadindicatorlight
Light on indicates the platform
is overloaded and no functions will operate. An
alarm will be sounding when this light is on.
Remove weight from the platform until the light
goes off and the alarm stops sounding.
7 Driveenablebutton
To drive when the drive enable light is on, push
thedrive enable button and the drive button and
slowly move the drive control handle off center.
Be aware that the machine may move in the
opposite direction that the drive and steer
controlsaremoved.
8 Machine not level indicator light
The machine not level indicator light will come
on when the tilt alarm sounds.
9 Hornbutton
Push the horn button and the horn will sound.
Release the horn button and the horn will stop.
10 Function enable switch for drive and boom
functions
Press and hold the function enable switch on the
control handle to enable the functions.
11 Proportionalcontrolhandlefordriveandboom
functions
Move the control handle in the direction
indicatedby the blue arrow andthe machine
functions will operate in the direction indicated
by the blue arrow. Move the control handle in
thedirection indicatedby theyellow arrowand
the machine functions will operate in the
direction indicated by the yellow arrow. Move
the control handle to the left and the turntable
will rotate to the left. Move the control handle to
the right and the turntable will rotate to the right.
12 Thumb rocker switch for steer functions
Press the left side of the thumb rocker and the
machine will steer to the left. Press the right
side of the thumb rocker and the machine will
steer to the right.