Genie GR-12 Operators Manual With Maintenance Information page 21

Third Edition • Second Printing
36 Raise the platform.
Result: Before the platform is raised
approximately 1 foot / 30 cm,
the lift function should stop, an
alarm should sound and the
LED readout should display
LL.
37 Press the drive function select button.
38 Press and hold the function enable switch and
slowly move the control handle in the direction
indicated by the blue arrow, then in the direction
indicated by the yellow arrow.
Result: The drive function should not work in
either direction.
39 Lower the platform and drive the machine off
both pieces of wood.
Test Limited Drive Speed
40 Press the lift function select button.
41 Press and hold the function enable switch on the
control handle. Raise the platform approximately
2 feet / 60 cm from the ground.
42 Press the drive function select button.
43 Press and hold the function enable switch on the
control handle. Slowly move the control handle
to the full drive position.
Result: The maximum achievable drive speed
with the platform raised should not exceed
0.7 feet / 20 cm per second.
If the drive speed with the platform raised exceeds
0.7 feet / 20 cm per second, immediately tag and
remove the machine from service.
Part No. 97773
Test the Pothole Guards
Note: The pothole guards should automatically
deploy when the platform is raised. The pothole
guards activate another limit switch which allows
the machine to continue to function. If the pothole
guards do not deploy, an alarm sounds and the
machine will not drive.
44 Raise the platform.
Result: When the platform is raised 4 feet /
1.2 m from the ground, the pothole guards
should deploy.
45 Press on the pothole guards on one side, and
then the other.
Result: The pothole guards should not move.
46 Lower the platform.
Result: The pothole guards should return to the
stowed position.
47 Place a 2x4 or similar piece of wood under a
pothole guard. Raise the platform.
Result: Before the platform is raised 7 feet /
2.1 m from the ground, an alarm should sound
and the drive function should not work.
48 Lower the platform and remove the 2x4.
GR-12 • GR-15 • GR-20
Operator's Manual
FUNCTION TESTS
19