Snorkel AB60J - Manual (Page 28)

Chapter 6 – Controls
24 AB60J – 0181972
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 6.4) 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:
Emergency stop button
Start switch
Boom joystick
Riser boom elevation switch
Boom extension switch
Jib boom elevation switch
Boom speed knob
Drive joystick
Drive range switch
Platform level switch
Platform rotation switch
Engine/emergency power switch
Throttle switch
Horn (option)
Hydraulic system warm-up switch (option)
Start Switch
The engine can be started from the platform using the
start switch on the front of the upper 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
release 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.
If the platform is to stay in a particular position for a long
time, turn the start switch to off to shut off the engine and
save fuel.
Emergency Stop Button
The emergency stop is a two-position, red push button on
the top of the upper control panel (refer to Figure 6.4).
Push the button inward to disconnect power from all
control circuits at the upper controls.
Pull the button outward to restore power.



















To warm-up the hydraulic fluid from the lower controls:
1. Start the engine from the lower controls.
2. Place the hydraulic fluid warm-up switch in the on
position.
The engine throttle speed will increase to warm
the hydraulic fluid.
The engine throttle speed will decrease and
return to idle once the hydraulic fluid reaches a
preset temperature.
If the warm-up switch is left on the engine speed
will continue to increase and decrease to keep
the hydraulic fluid at a preset temperature.
3. When the engine throttle speed returns to idle, place
the hydraulic fluid warm-up switch in the off posi-
tion.
Circuit Breaker Reset Buttons
The lower control panel has a circuit breaker for the
throttle, run, and system control circuits. There is a reset
button for each circuit breaker on the front of the lower
control panel (refer to Figure 6.2).
The upper control panel has a circuit breaker for the swing
(turntable rotation), lift, drive and main control circuits.
The circuit breakers are on the front of the upper control
panel (refer to Figure 6.3).
Figure 6.3 – Platform
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 6.3).
The circuit breakers protect the electrical wiring and
components from electrical overload in case of a short
circuit or other fault.
Caution
A tripped circuit breaker indicates a malfunction in
the electrical system. Component damage can result



Upper Control
Circuit Breaker Reset Buttons
Electrical Outlet
Circuit Breaker
Reset Button