Platform Level Switch; Platform Rotation Switch; Engine/Emergency Power Switch; Throttle Switch - Snorkel AB60J Operator's Manual

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 upward to tilt the platform floor upward

or away from the ground.
Hold the switch downward to tilt the platform floor

downward or toward the ground.

Platform Rotation Switch

The platform rotation switch (refer to Figure 6.2) 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.

Engine/Emergency Power Switch

The engine/emergency power switch (refer to Figure 6.2)
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 downward

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.
AB60J – 0181972

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.
Place the switch in the high position for engine and/or

hydraulic system warm-up.
The engine has a two speed throttle operation from the
lower controls.
Place the throttle switch in the low position to idle the

engine.
Place the switch in the high position to increases the

engine speed to high-range.
When the ground operation switch is in the on position

the engine speed increases to high-range.

Fuel Switch

Engines on machines with the dual fuel option can be
operated using gasoline or liquefied petroleum gas (LPG).
Dual fuel machines have a gasoline tank and an LPG tank
behind the door on the right side of the turntable.
The fuel switch (refer to Figure 6.2) may be used to select
between gasoline and LPG operation.
Place the switch downward to operate the engine

using gasoline.
Place the switch upward to operate the engine using

LPG.

Hydraulic System Warm-up Switch

The optional hydraulic fluid warm-up switch is 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.
Caution
Not all hydraulic fluid is suitable to use in the hydrau-
lic system. Some have poor lubricating character-
istics and may increase component wear. Only use
hydraulic fluid as recommended.
Use cold weather hydraulic oil as recommended in the
machine General Specifications in temperatures of 10°F
(-12°C) or below.
The toggle switches for the warm-up system are on the
lower control panel and on the front of the upper control
panel.
Note
Machine functions are not operational while using the
hydraulic warm-up system.
Chapter 6 – Controls
23