Snorkel TB66J CE - Manual (Page 45)

Chapter 8 – Operation
TB60/66J – 0084030EE 4
4. Gradually turn the boom speed knob to control
the boom extend, jib and platform rotate function
speed.
5. 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 unsta-
ble. Death or serious injury will result from a tip-over
accident. Do not drive an elevated aerial platform on
soft, uneven, or sloping surfaces. Do not drive the
machine on grades that exceed 25 percent.
For operation of two wheel drive machines on grades up
to 25 percent, or four wheel drive machines on grades
up to 30 percent, it is recommended that the main boom
be near horizontal and the jib on the TB66J elevated just
enough to provide adequate ground clearance.
A 25 percent grade is a 0.76 m (30″) vertical rise in 3.05
m (0′) horizontal length.
A 30 percent grade is a 0.9 m (36″) vertical rise in 3.05
m (0″) 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.
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.
. Turn the boom speed knob to slow.
2. Step down on the platform foot switch. This switch
must be held down to operate the upper controls.
Figure 8.4 – Platform
3. Hold the appropriate control in the desired direction.
Always look in the direction of movement.
Lanyard
Anchors
Platform Foot Switch
Figure 8.3 – Upper Controls
Front
Start Switch
Top
Emergency Stop