Snorkel TB126J CE - Manual (Page 48)

Chapter 8 – Operation
44 TB126J – 0192117EE
4. Pull the emergency stop outward (refer to Figure
8.5).
Figure 8.5 – Upper Controls
5. Turn the anti-restart master switch to on and pause
a few seconds while the alarm sounds to alert others
that the machine is about to start. Turn the switch to
start, then release it to on. The engine will not start
if the switch is left in the on position for 30 seconds
or longer before turning it to start. The switch must
be turned back to off before the engine will start.
6. Let the engine warm to operating temperature.
Boom Operation
Use the following procedure to operate the turntable,
boom or platform functions.
1. Place the drive/boom selector switch in the boom
position.
2. Step down on the platform foot switch (refer to Figure
8.6). This switch must be held down to operate the
upper controls.
Figure 8.6 – Platform
3. Hold the appropriate control in the desired direction.
Always look in the direction of movement.
4. Releasing the control to its neutral position, or re-
leasing the foot switch will stop movement.
Driving and Steering
A Danger
The aerial platform can tip over if it becomes un-
stable. Death or serious injury can result from a
tip-over accident. Do not drive an elevated aerial
platform on soft, uneven, or sloping surfaces. Do
not drive four wheel drive machines on grades that
exceed 30 percent.
For operation on grades up to 25 percent, it is recom-
mended that the main boom be near horizontal and the
jib elevated just enough to provide adequate ground
clearance.
A 25 percent grade is a 0.76 m (30″) vertical rise in 3.05
m (10′) horizontal length.
Avoid driving with the platform over the front (steer) end
of the chassis. In this position the machine is difficult to
control because:
• drive and steer control movements and their result-
ing machine movements are reversed.
• when driving fast, sudden turns or stops produce
more severe reactions to platform occupants.
• more turning space is required to prevent the
platform from colliding with obstacles several feet
beyond the path of the tires.
A Warning
Death or serious injury can result from improperly
driving or steering the aerial platform. Read and
understand the information in this manual and on
the placards and decals on the machine before op-
erating the aerial platform on the job.
The blue and yellow arrows on the chassis indicate the
direction the chassis will move when the drive or steer
control is moved toward the corresponding color.
When the machine is in the stowed position, with the
booms centered between the rear wheels, the direction
of drive and steer control movement corresponds with
the direction of chassis movement.
When the turntable is rotated from the stowed position,
with the booms to either side of or in front of the chassis,
the direction of control movement does not correspond
with the direction of chassis movement.
To avoid confusion, always drive to the work area or
move between work areas with the turntable and booms
in the stowed position. After arriving at the work area,
the booms may be positioned to the side or the front
of the chassis for final positioning. Always look in the
direction of movement as indicated by the directional
arrows on the chassis.
Emergency Stop
Platform Overload
Light
Platform Foot
Switch