Snorkel T85J - Manual (Page 28)

Chapter 6 – Controls
24 TB80/TB85J Fixed Axle – 0112792
Upper Controls
The upper controls (refer to Figure 6.6) are located on the
control panel at the platform. Boom, platform, and drive
functions can be operated from the upper controls. The
following controls are located on the upper control panel.
• Start switch
• Emergency stop button
• Boom joystick
• Drive joystick
• Drive range switch
• Steer mode switch
• Jib articulation switch – TB85J only
• Platform level switch
• Platform rotate switch
• Boom extend/retract joystick
• Engine/emergency power switch
• Throttle switch
Figure 6.6 – Upper Control Panel Top
Start Switch
The engine can be started from the platform using the
anti-restart master switch on the front of the upper con-
trol panel (refer to Figure 6.4).
This switch is similar to an automobile ignition switch.
Turn the switch to start until the engine starts, then re-
lease it to on. If the engine dies, the switch must be
turned to off before it can be turned back to start.
An alarm sounds when the switch is turned on to warn
others that the machine engine is being started.
Note
On some machines it may be necessary to pause about
three seconds in the on position before going to start so
the starter can engage.
Turn the switch to off to turn the engine off and save fuel
if the platform is to stay in a particular position for a long
time.
Emergency Stop Button
The emergency stop is a two-position, red push button
on the top of the upper control panel (refer to Figure 6.6).
Push the button in to disconnect power to all control cir-
cuits at the upper controls. Pull the button out to restore
power.
Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged the lower
controls can still be used to operate the aerial platform.
Push the emergency stop button in when the upper con-
trols are not in use to protect against unintentional op-
eration.
Boom Joystick
The boom joystick is used to raise and lower the main
boom and to rotate the turntable. The boom and turn-
table functions may be operated simultaneously.
Note
The distance the joystick is moved is proportional to the
speed of the function.
Hold the joystick forward to raise the main boom and
backward to lower the boom.
Hold the joystick to the right to rotate the turntable coun-
terclockwise and to the left to rotate the turntable clock-
wise.
Drive Joystick
The drive joystick is used to control forward and reverse
motion of the aerial platform. It is also used to steer the
machine. The steering and drive functions may be oper-
ated simultaneously.
Note
The distance the joystick is moved is proportional to the
speed of the function.
Hold the joystick forward to move the aerial platform for-
ward and backward to move in reverse as indicated by
the directional arrows on the chassis.
Hold the joystick to the right to steer the aerial platform
to the right and to the left to steer to the left as indicated
by the directional arrows on the chassis. The wheels will
steer only when the drive joystick is in the forward or
reverse drive position, or when the booms are stowed.
Note
The steering wheels are not self-centering. Set the steer-
ing wheels straight ahead after completing a turn.
Drive Joystick Boom Joystick
Emergency Stop
Platform Level
Engine/Emergency
Power
Drive Range
Throttle Switch
Jib Switch
Platform Rotate
Boom Extend/
Retract
Steer Mode