Snorkel AB60J - Manual (Page 30)

Chapter 6 – Controls
26 AB60J – 0181972
Riser Boom Elevation Switch
The riser boom elevation switch (refer to Figure 6.4) is
used to raise or lower the riser boom. The switch is spring
returned to the center off position.
Hold the switch upward to raise the riser boom.
Hold the switch downward to lower the riser boom.
Boom Extension Switch
The boom extension switch (refer to Figure 6.4) is used
to extend or retract the tip boom. The switch is spring
returned to the center off position.
Hold the switch forward to retract the tip boom.
Hold the switch backward to extend the tip boom.
Jib Articulation Switch
The jib boom elevation switch (refer to Figure 6.4) is used
to raise or lower the jib. The switch is spring returned to
the center off position.
Hold the switch forward to raise the jib.
Hold the switch backward to lower the jib.
Platform Level Switch
The platform level switch (refer to Figure 6.4) is used to
level the platform floor with respect to the ground. The
switch is spring returned to the center off position.
Hold the switch forward to tilt the platform floor upward
or away from the ground.
Hold the switch backward to tilt the platform floor
downward or toward the ground.
Platform Rotation Switch
The platform rotation switch (refer to Figure 6.4) is used
to rotate the platform relative to the end of the jib. The
switch is spring returned to the center off position.
Hold the switch to the left to rotate the platform
clockwise.
Hold the switch to the right to rotate the platform
counterclockwise.
Boom Speed Knob
The boom speed knob (refer to Figure 6.4) is used to
control the speed of the following boom functions:
Riser boom raise/lower
Jib boom raise/lower
Boom extend/retract
Platform level up/down
Set the knob to slow when beginning a movement. The
speed may be increased by slowly rotating the knob to-
ward fast. For smooth operation, rotate the knob to slow
when ending movement.
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Throttle Switch
The throttle switch (refer to Figure 6.4) is used to set the
engine throttle speed to either low or high idle.
Place the switch in the low position for normal machine
operation.
Place the switch in the high position to drive at maxi-
mum speed.
The engine has a three speed throttle operation from the
upper controls.
Press down on the platform foot switch to increase
the engine speed from low to mid-range, independent
of the throttle switch.
High engine speed is obtained when the main boom
is horizontal, the foot switch is depressed, the throttle
switch is in the high position, and the drive joystick
is moved out of neutral into the forward or reverse
position.
Place the throttle switch in the low position to drive the
machine in the mid-range engine speed.
Engine/Emergency Power Switch
The engine/emergency power switch (refer to Figure 6.4)
is used to operate turntable, boom, and platform func-
tions using the emergency power system. The switch is
spring returned to the engine position for aerial platform
engine operation.
Caution
The emergency power system is for emergency low-
ering and stowing only. The length of time the pump
can be operated depends on the capacity of the bat-
tery. Do not use this system for normal operation.
Hold the engine/emergency power switch backward
to activate the emergency power system.
Release the switch to disengage the emergency
power system.
Note
The emergency power system is for lowering the platform
during an emergency and is not intended for normal
machine operation.
If the engine is running, it will stop when the switch is
placed in the emergency power position.
Horn
The optional horn is located on the right side of the upper
control panel.
Press the button to sound the horn.
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