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Chapter 4 – Safety Devices
Ground Operation Switch
The ground operation switch (refer to Figure 4.1) prevents
boom and platform movement if a control switch on the
lower control panel is accidentally moved.
Hold the switch up to operate the machine from the lower
controls.
Platform Foot Switch
Stepping down on the platform foot switch (refer to Figure
4.4) activates the upper controls.
Gravity
Lanyard
Anchors
Platform Foot
Switch
Figure 4.4 – Platform
The foot switch must be engaged and a control must be
moved to operate the boom, drive, and/or platform from
the upper controls.
Guardrails
The guardrail system includes a top rail, mid rail, and
toeboards around the sides of the platform (refer to Fig-
ure 4.4).
A gravity gate (refer to Figure 4.4) or an optional swinging
gate (refer to Figure 4.5) allows for access to the plat-
form.
Figure 4.5 – Platform
14
Top Rail
Gate
Mid Rail
Toeboard
The gates close automatically after entering or exiting
the platform. The gate is part of the guardrail system and
must be securely fastened after entering the platform.
Lanyard Anchors
Two lanyard anchors for fall restraint anchorage are pro-
vided below the upper controls at the front of the platform
(refer to Figure 4.4).
Note
The lanyard anchors are not for lifting or tying the ma-
chine down.
All personnel in the platform must connect their fall re-
straint device to a lanyard anchor before raising the plat-
form. Do not use the aerial platform for personal fall ar-
rest anchorage.
Tilt Alarm
If the aerial platform chassis is out of level more than 3.5
degrees when the main boom is raised or extended, an
alarm will sound. The tilt alarm is located under the upper
control box (refer to Figure 4.6).
Figure 4.6 – Tilt Alarm
A
Danger
The aerial platform can tip over if it becomes un-
stable. 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 haz-
ard.
Retract and lower the main boom and then drive to a level
surface when the tilt alarm sounds.
The tilt alarm is for added protection and does not justify
operating on anything other than firm, flat, level surfaces.
Tilt Alarm
SB47JRT – 0075522
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