Inspect The Electrical Wiring; Test The Emergency Stop - Genie TZ-50 Servise Manual

November 2004
REV A
B-2

Inspect the Electrical Wiring

Maintaining electrical wiring in good condition is
essential to safe operation and good machine
performance. Failure to find and replace burnt,
chafed, corroded or pinched wires could result in
unsafe operating conditions and may cause
component damage.
Electrocution hazard. Contact
with hot or live circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
1 Inspect the following areas for burnt, chafed,
corroded and loose wires:
· Turntable area
· Ground controls
· Power unit wiring
2 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
3 Raise the secondary boom until the platform is
approximately 10 feet / 3 m off the ground.
4 Inspect the boom storage area for burnt, chafed
and pinched cables.
5 Lower the boom to the stowed position and turn
the machine off.
6 Inspect the following areas for burnt, chafed,
corroded, pinched and loose wires:
· Boom to platform cable harness
· Primary and secondary booms
Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at the ground controls.
Part No. 84577
Section 3 • Scheduled Maintenance Procedures
B-3

Test the Emergency Stop

A properly functioning Emergency Stop is essential
for safe machine operation. An improperly
operating red Emergency Stop button will fail to
shut off power and stop all machine functions,
resulting in a hazardous situation.
1 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls. Pull out the red Emergency Stop
button to the on position at the drive controls (if
equipped).
2 Push in the red Emergency Stop button at the
ground controls to the off position.
Result: No machine functions should operate.
3 Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at the ground controls.
4 Push down the red Emergency Stop button at
the platform controls to the off position.
Result: No machine functions should operate.
Models with drive (option):
5 Pull out the red Emergency Stop button to the
on position at the platform controls.
6 Push down the red Emergency Stop button at
the drive controls to the off position.
Result: The drive function should not operate.
Genie TZ-50/30
CHECKLIST B PROCEDURES
The red Emergency Stop button at
the ground controls will stop all
machine operation without regard
to the position of the key switch.
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