Section 4 • Repair Procedures
REV B
November 2005
Part No. 84700
GR-12 • GR-15 • GR-20
4 - 3
1-2
Controller Adjustments
Platform lift speed, stowed drive speed, raised
drive speed and slow drive speed are adjustable to
compensate for wear in the hydraulic pump and
drive motors.
The function speeds are determined by the
percentage of total controller output.
For further information or assistance, consult the
Genie Industries Service Department.
Tip-over hazard. Do not adjust the
lift and/or drive speed higher than
specified in this procedure. Setting
the function speeds greater than
specifications could cause the
machine to tip over resulting in
death or serious injury.
Tip-over hazard. This procedure
must only be performed by a
trained service professional.
Attempting this procedure without
the necessary skills could result in
death or serious injury.
Select a test area that is firm, level
and free of obstructions.
How to
Determine the Revision Level
1 Remove the platform controls from the platform.
2 Place the platform controls close to the
diagnostic display on the power unit side of the
machine.
PLATFORM CONTROLS
a
joystick controller JC1
b
lift function select button BN9
c
diagnostic display window
d
red Emergency Stop button P2
e
yellow arrow
3 Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
Result: The diagnostic display at the platform
controls will show the battery condition. See
1-3, How to Determine the Battery Voltage.
4 Press the lift function select button.
5 Slowly move the joystick in the direction
indicated by the yellow arrow.
Result: The software revision level will appear
in the diagnostic display.
6 Push in the red Emergency Stop button to the
off position at both the ground and platform
controls and turn the key switch to the off
position.
a
e
d
c
b
