Snorkel TB85J - Manual (Page 30)

Chapter 6 – Controls
26 TB80/TB85J – 0112477
• Platform rotate switch
• Engine/Emergency power switch
• Engine speed switch
• Fuel switch (dual fuel machines)
• Ether injection switch (option for Cummins engines)
• Air inlet heater (option for Deutz engines)
• Hydraulic warm-up switch (option)
Figure 6.4 – Lower Controls
Start Switch
The start switch works like an automobile ignition switch.
Hold it in the start position until the engine starts, then
release it to on. If the engine dies, the key must be turned
to off before it will go back to start.
An alarm sounds when the switch is turned on to warn
others that the machine engine is being started.
Emergency Stop Button
The emergency stop is a two-position, red push button.
Push the button in to disconnect power to all control cir-
cuits. Pull the button out to restore power. On older ma-
chines the emergency stop is a two-position toggle switch
with a red safety guard. Push the guard down over the
toggle switch to disconnect power to all control circuits.
Lift the guard and push the toggle switch up to restore
power.
Controls Selector Switch
Use the controls switch to select between lower control
and upper control operation. Place the switch in the plat-
form position to operate the aerial platform from the up-
per controls and in the ground position for lower controls
operation.
Ground Operation Switch
Hold the switch upward continually to operate the ma-
chine from the lower controls. The engine speed increases
when the switch is held upward. This switch is spring
returned to the off position.
Boom/Axle Switch
The boom/axle switch must be up, in the boom position
to operate the boom functions.
Place the switch down, in the axle position, to operate
the controls for the jack and axles.
Rotation Switch
The rotation switch is used to rotate the turntable in a
clockwise or counterclockwise direction. The switch is
spring returned to the center off position.
Hold the switch to the right to rotate the turntable coun-
terclockwise. Hold the switch to the left to rotate the turn-
table clockwise.
Boom Elevation Switch
The boom elevation switch is used to raise or lower the
main boom. The switch is spring returned to the center
off position.
Hold the switch up to raise the main boom. Hold the
switch down to lower the main boom.
Boom Extension Switch
The boom extension switch is used to extend or retract
the booms. The switch is spring returned to the center off
position.
Hold the switch to the left to extend the booms. Hold the
switch to the right to retract the booms.
Boom Speed Knob
Use the boom speed control knob to control the speed of
the following boom functions.
• Main boom raise/lower
• Boom extend/retract
• Turntable rotation clockwise/counterclockwise
Set the knob to slow when beginning a boom movement.
The speed may be increased by slowly rotating the knob
toward fast. For smooth operation, rotate the knob to
slow when ending boom movement.
Jib Articulation Switch – TB85J Only
The jib switch is used to raise or lower the jib. The switch
is spring returned to the center off position.
Hold the switch up to raise the jib. Hold the switch down
to lower the jib.
Platform Level Switch
The platform level switch is used to level the platform
floor with respect to the ground. The switch is spring re-
turned to the center off position.