Snorkel TB125J - Manual (Page 18)

Chapter 4 – Safety Devices
18 T125J/TB125J – 0192214
Ground Operation Switch
The ground operation switch (refer to Figure 4.1) pre-
vents 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 4.6) activates the upper controls.
Figure 4.6 – 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
Figure 4.6).
A gravity gate (refer to Figure 4.6) or an optional swing-
ing gate allows for access to the platform.
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
provided below the upper controls at the front of the
platform (refer to Figure 4.6).
Note
The lanyard anchors are not for lifting or tying the ma-
chine down.
All personnel in the platform must connect their fall
restraint device to a lanyard anchor before raising the
platform. Do not use the aerial platform for personal fall
arrest anchorage.
Figure 4.4 – Right Side of Upper Controls
Emergency Lowering Knob
The emergency lowering knob may be used to lower
the booms if the engine will not start and the emergency
power system and bleed down system will not work.
The knob is located at the base end of the main boom
lift cylinder, under the center of the turntable (refer to
Figure 4.5). It is accessible from the underside of the
turntable.
Figure 4.5 – Emergency Lowering Knob
The knob may be turned to open the cylinder bleed down
valve for emergency lowering.
Axle/Boom Interlock
The rear axles on the chassis extend to help stabilize
the machine when the boom is raised or extended.
The axle/boom interlock prevents the boom from extend-
ing and from raising above horizontal if the rear axles
are not properly extended and locked in position.
Emergency
Lowering Knob
Toeboard
Top Rail
Mid Rail
Gravity
Gate
Lanyard
Anchors
Platform Foot
Switch
Emergency Bleed
Down Switch