Upper Controls; Master Start Switch; Emergency Stop Button - Snorkel TB42J Operato's Manual

Master Start Switch

Figure 6.4 – Upper Control Panel Front
The electrical power outlet at the platform has a 15 amp
circuit breaker. The reset button is on the right side of the
electrical box (refer to Figure 6.5).
Figure 6.5 – Electrical Power Outlet
The circuit breakers protect the electrical wiring and com-
ponents from electrical overload in case of a short circuit
or other fault.
A
Caution
A tripped circuit breaker indicates a malfunction in
the electrical system. Component damage can re-
sult if the cause of the malfunction is not corrected.
Do not operate the aerial platform if a circuit breaker
trips repeatedly.
Push the button to reset the circuit breaker.

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.
• Master start switch

• Emergency stop button

• Speed knob
TB42J – 0172310
Circuit Breaker Reset Buttons
Circuit Breaker
Reset Button
• Boom joystick
• Drive joystick
• Drive range switch
• Jib articulation switch
• Platform level switch
• Boom extend/retract switch
• Engine/emergency power switch
• Throttle switch
• Platform rotate switch
Engine
Emergency
Throttle
Boom Extend/Retract
Speed Knob
Jib
Boom Joystick
Platform
Rotate
Figure 6.6 – Upper Control Panel Top
Master 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.
Chapter 6 – Controls
Engine/Emergency
Stop Power
Drive
Range
Platform
Level
Drive Joystick
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