Snorkel AB60J CE - Manual (Page 22)

Chapter 6 – Controls
18 AB60J – 0182099EE
An alarm sounds when the switch is turned on to warn
others that the machine engine is being started.
Ground Operation Switch
Hold the switch (refer to Figure 6.2) up continually to
operate the machine from the lower controls. This switch
is spring returned to the off position.
Rotation Switch
The rotation switch (refer to Figure 6.2) is used to rotate
the turntable in a clockwise or counterclockwise direc-
tion. The switch is spring returned to the center off posi-
tion.
Hold the switch to the up to rotate the turntable clock-
wise. Hold the switch to the down to rotate the turntable
counterclockwise.
Riser Boom Elevation Switch
The riser boom elevation switch (refer to Figure 6.2) is
used to raise or lower the riser boom. The switch is spring
returned to the center off position.
Hold the switch up to raise the riser boom. Hold the
switch down to lower the riser boom.
Main Boom Elevation Switch
The main boom elevation switch (refer to Figure 6.2) 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.
Boom Extension Switch
The boom extension switch (refer to Figure 6.2) is used
to extend or retract the tip boom. The switch is spring
returned to the center off position.
Hold the switch up to extend the tip boom. Hold the switch
down to retract the tip boom.
Jib Articulation Switch
The jib switch (refer to Figure 6.2) is used to raise or
lower the jib. The switch is spring returned to the center
off position.
Hold the switch up to raise the jib. Hold the switch down
to lower the jib.
Boom Speed Knob
Use the boom speed control knob (refer to Figure 6.2)
to control the speed of the following boom functions.
• Riser and main boom raise/lower
• Jib boom raise/lower
• Boom extend/retract
• Platform level up/down
• Turntable rotation clockwise/counterclockwise
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.
Platform Level Switch
The platform level switch (refer to Figure 6.2) 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 up to tilt the platform floor upward or
away from the ground. Hold the switch down to tilt the
platform floor downward or toward the ground.
Platform Rotate Switch
The platform rotate switch (refer to Figure 6.2) is used
to rotate the platform relative to the end of the tip boom.
The switch is spring returned to the center off position.
Hold the switch up to rotate the platform clockwise. Hold
the switch down to rotate the platform counterclockwise.
Engine/Emergency Power Switch
Hold the engine/emergency power switch (refer to Fig-
ure 6.2) down to operate aerial platform functions using
the emergency power system. Release the switch to dis-
engage the emergency power system.
Note
The emergency power system is for lowering the plat-
form during an emergency and is not intended for nor-
mal machine operation.
If the engine is running, it will stop when the switch is
placed in the emergency power position.
Throttle Switch
The throttle switch (refer to Figure 6.2) is used to set the
engine throttle speed to either low or high idle.
Place the switch in the low position before starting the
engine and in the high position for engine and/or hy-
draulic system warm-up.
The engine has a two speed throttle operation from the
lower controls. When the throttle switch is in the low
position the engine is at idle. Placing the switch in the
high position increases the engine speed to high-range.
Placing the ground controls switch in the on position
also increase the engine speed to high-range.
Hydraulic System Warm-up Switch
Some engines may have a hydraulic fluid warm-up sys-
tem. This system may be used to warm the hydraulic
fluid when the ambient temperature is below 32°F (0°C)
and boom movement is sluggish because of cold fluid.
There is a toggle switch for the warm-up system on the
lower control panel and one on the left side of the upper
control panel.