Test The Platform And Ground Controls - Genie Z-25/8 Service Manual

First Edition • Third Printing
A-6
Test the Platform and
Ground Controls
Testing the machine functions and the Emergency
Stop buttons for malfunctions is essential for safe
machine operation. An unsafe working condition
exists if any function fails to operate properly or
either Emergency Stop button fails to stop all the
machine functions. Each function should operate
smoothly and be free of hesitation, jerking and
unusual noise.
1 Turn the key switch to ground control and pull
out the Emergency Stop button to the
position.
2 Do not hold the function enable switch to either
side. Attempt to activate each boom and
platform function toggle switch.
Result: No boom functions should operate.
3 Hold the function enable switch to either side
and activate each boom and platform function
toggle switch.
Result: All boom and platform functions should
operate through a full cycle. The descent alarm
(if equipped) should sound while boom is
lowering.
4 Turn the key switch to platform control and pull
out the Emergency Stop button to the
position at both the ground and the platform
controls.
Part No. 41314
ON
ON
Genie Z-20/8N & Genie Z-20/8 & Genie Z-25/8
Section 4 • Scheduled Maintenance Procedures
TABLE A PROCEDURES
5 Move the lift/drive select switch (if equipped) to
the lift position.
6 Press down the foot switch.
7 Activate each machine function toggle switch.
Result: All boom/platform functions should
operate through a full cycle.
8 Move the lift/drive select switch (if equipped) to
the drive position.
9 Press down the footswitch.
10 Activate each drive and steer function.
Result: All drive and steer functions should
operate.
11 Push in the Emergency Stop button to the
position.
Result: No function should operate, the
machine should stop.
As a safety feature, selecting
and operating the ground
controls will override the
platform controls, including
the platform Emergency Stop
button.
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