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Section 4 • Scheduled Maintenance Procedures
TABLE B PROCEDURES
B-3
Inspect the Tires and Wheels
(including castle nut torque)
Maintaining the tires and wheels in good
condition is essential to safe operation and good
performance. Tire and/or wheel failure could result
in a machine tip-over. Component damage may
also result if problems are not discovered and
repaired in a timely fashion.
1 Check the tire surface and sidewalls for cuts,
cracks, punctures and unusual wear.
2 Check each wheel for damage, bends and
cracks.
3 Remove the cotter pin and check each castle
nut for proper torque.
4 Install a new cotter pin.
Always replace the cotter pin with
a new one when removing the
castle nut or when checking the
torque of the castle nut.
Tires and wheels
Castle nut torque, dry
Castle nut torque, lubricated
4 - 12
300 ft-lbs
406.7 Nm
225 ft-lbs
305 Nm
Genie Z-20/8N & Genie Z-20/8 & Genie Z-25/8
B-4
Test the Key Switch
Proper key switch action and response is essential
to safe machine operation. The machine can be
operated from the ground or platform controls and
the activation of one or the other is accomplished
with the key switch. Failure of the key switch to
activate the appropriate control panel could cause
a hazardous operating situation.
1 Pull out the Emergency Stop button to the
position at both the ground and platform
controls.
2 Turn the key switch to platform control.
3 Check the machine functions from the ground
controls.
Result: The machine functions should not
operate.
4 Turn the key switch to ground control.
5 Check the machine functions from the platform
controls.
Result: The machine functions should not
operate.
6 Turn the key switch to the
Result: No function should operate, the
machine should stop.
First Edition • Third Printing
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Part No. 41314
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