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Chapter 4 – Safety Devices
Guardrails
The guardrails (refer to Figure 4.9) help protect personnel
from falling off the platform.
The guardrail system includes:
A top rail
y
A mid rail
y
Saloon style entry doors
y
Toeboards around the sides of the platform.
y
Top Rail
Entry Doors
Mid Rail
Toeboard
Figure 4.9 – Platform
The entry doors allow for access to the platform. The
doors must be securely closed except when personnel
are entering or leaving the platform.
Ground Fault Circuit Interrupter
The electrical power outlet (refer to Figure 4.10), at the
platform contains a ground fault circuit interrupter (GFCI)
to provide protection for personnel.
Figure 4.10 – Upper Controls
Tilt Alarm
An alarm will sound if the aerial platform chassis is out
of level when the platform is raised. Refer to the ma-
chine general specifications for the specific level sensor
settings.
20
Horn
The aerial platform can tip over if it becomes unstable.
Death or serious injury will result from a tip-over
accident. Do not drive or position the aerial platform
for elevated use near any drop-off, hole, slope, soft
or uneven ground, or other tip-over hazard.
Completely lower the platform and drive to a level surface
when the tilt alarm sounds.
The tilt alarm is for added protection and does not justify op-
erating on anything other than firm, flat, level surfaces.
Overload Protection
When the load in the platform is near or at rated capacity,
an alarm will sound and the red light on the lower controls
will flash.
The alarm and light warn the operator that the platform
is close to becoming overloaded. All functions remain
fully operational.
The aerial platform can tip over if it becomes unsta-
ble. Death or serious injury will result from a tip-over
accident. Do not exceed the capacity values indicated
on the platform rating placard.
If the platform is overloaded, when it is elevated just past
6' (1.8 m), a control module will stop the lift and drive func-
tions and the alarm will slowly beep and the warning light
will be on. The platform can still be lowered to remove the
excess load using the upper controls or the emergency
lowering system only.
If the platform is elevated just past 6' (1.8 m) and material
is added to the platform overloading it, a control module
will stop the lift, drive and lower functions. The alarm will
slowly beep and the warning light will be on. In this case,
remove the load in excess of rated capacity to return to
normal operation.
If the emergency lowering lever/handle is activated
when the platform is overloaded, the lower controls will
not operate and the LCD will display "Function Locked
Emergency Lowering Detected." In this case, remove
the load in excess of rated capacity and enter the pass
code on the LCD keypad to return to normal operation.
Lowering Interrupt – CE/AS/NZS
When the platform is lowered to about 6' (1.8 m) lower-
ing stops, the flashing light is constant on and the alarm
sounds in fast short beeps. The platform will not lower for
five seconds regardless of the control position to allow
personnel to clear the area of the scissors before the
platform completely lowers.
Center the control in neutral to reset the lowering function,
then continue to lower the platform.
S3215L/S3215E/S3219E/S3220E/S3226E/S4726E/S4732E – 1500834
Danger
Danger
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