Test The Emergency Stop Buttons; Test The Ground Control Override - Genie Z-25/8 Service Manual

First Edition • Third Printing
B-5

Test the Emergency Stop Buttons

Properly functioning Emergency Stop buttons
are essential for safe machine operation. An
improperly operating Emergency Stop button
will fail to shut off power and stop all machine
functions resulting in a hazardous situation.
As a safety feature, selecting
and operating the ground controls
will override the platform controls,
including the Emergency Stop
button.
1 Turn the key switch to ground control and pull
out the Emergency Stop button to the
position.
2 Push down the ground controls Emergency
Stop button to the
OFF
Result: No functions should operate.
3 Turn the key switch to platform control and pull
out the Emergency Stop button to the
position at both the ground and platform
controls.
4 Push down the plaform controls Emergency
Stop button to the
OFF
Result: No machine functions should operate.
The ground Emergency Stop
button will stop all machine
operation, even if the key switch
is switched to platform control.
Part No. 41314
ON
position.
ON
position.
Genie Z-20/8N & Genie Z-20/8 & Genie Z-25/8
Section 4 • Scheduled Maintenance Procedures
TABLE B PROCEDURES
B-6

Test the Ground Control Override

A properly functioning ground control override is
essential to safe machine operation. The ground
control override function is intended to allow
ground personnel to operate the machine from the
ground controls whether or not the Emergency
Stop button at the platform controls is in the
position. This function is particularly useful if
OFF
the operator at the platform controls cannot return
the boom to the stowed position.
1 Press in the platform Emergency Stop button
to the position.
OFF
2 Turn the key switch to ground control and pull
out the Emergency Stop button to the
position.
3 Operate each boom function through a partial
cycle at the ground controls.
Result: All boom functions should operate.
or
ON
ON
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