Snorkel TB37 2001 - Manual (Page 22)

The circuit breakers protect the electrical wiring and
components from electrical overload in case of a short
circuit or other fault.
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 the circuit
breaker trips repeatedly.
Push the button to reset the circuit breaker.
Upper Controls
The upper controls (refer to Figure 6.5) 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.
● Anti-restart master switch
● Emergency stop button
● Speed knob
● Swing switch
● Boom up/down switch
● Boom extend/retract switch
● Level switch
● Steer switch
● Drive joystick
● Drive range switch
● Engine/emergency power switch
● Throttle switch
● Platform rotator switch
Figure 6.5—Upper Control Panel
Anti-Restart Master Switch
The machine engine can be started from the platform
using the anti-restart master switch on the front of the up-
per control 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. Push the button in
to disconnect power to all control circuits at the upper
controls. Pull the button out to restore power.
Note
The lower controls override the upper controls. If the
upper 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 oper-
ation.
Speed Knob
Use the boom speed control knob to control the speed
of the following boom functions.
● Turntable swing clockwise/counterclockwise
● Main boom raise/lower
Set the knob to slow when beginning a boom move-
ment. The speed may be increased by slowly rotating
the knob toward fast. For smooth operation, rotate the
knob to slow when ending boom movement.
Swing Switch
The swing 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
turntable clockwise.
Boom Up/Down Switch
The boom up/down 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.
Chapter 6. Controls
TB37 – 0172094 page 6 - 3
CAUTION