Riser Boom Elevation Switch; Boom Extension Switch; Jib Articulation Switch; Platform Level Switch - Snorkel AB60J Operator's Manual

Chapter 6 – Controls

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.
26

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.
AB60J – 0181972