Snorkel A38E-sn006001+ - Manual (Page 25)

Chapter 7 – Controls
A38E – 8210243 21
Both the lower and upper control emergency stop but-
tons must be on to operate the machine from the upper
controls.
Joystick
The joystick (refer to Figure 7.4) is used to either drive
the aerial platform or to operate the boom and turntable
after selecting the appropriate function.
Enable the drive/steer switch to use the joystick to
drive the aerial platform.
Enable the boom or turntable switches to use the
joystick to operate those functions.
Movement of the joystick in a given direction produces a
corresponding movement of the aerial platform as indi-
cated on the upper control placard. The steering and drive
functions may be operated separately or simultaneously.
Steer Switch
The steer switch (refer to Figure 7.4) is a momentary
contact, rocker switch on top of the drive joystick. This
switch controls the two front wheels to steer the aerial
platform. The
To steer to the right, engage the interlock switch on
the joystick and hold down the right side of the steer
switch.
To steer to the left, engage the interlock switch on
the joystick and hold down the left side of the steer
switch.
Note
The steering wheels are not self-centering. Set the steer-
ing wheels straight ahead after completing a turn.
Drive and Boom Function Switches
The drive and boom function select switches (refer to
Figure 7.4) are used to selected the desired function. A
green LED above the function icon indicates which func-
tion has been selected.
Press a switch downward and release to select a machine
function. Only one function can be selected at a time.
After selecting the function, operate the joystick in the
direction of the blue and yellow arrows on the control
placard.
The following drive and boom function switches are lo-
cated on the upper control panel:
Drive/steer select
Riser select
Main boom select
Tip boom select
Turntable rotation select
Platform level select
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Horn
The horn button is at the top of the upper control panel
(refer to Figure 7.4).
Press the button to sound the horn.
Platform Rotator
The platform can be rotated 150 degrees, 75 degrees to
either side of the boom using a hand crank. The hand
crank handle can be folded against the crank handle
when it is not in use.
Turn the hand crank (refer to Figure 7.5) counterclock-
wise to rotate the platform to the left and clockwise to
rotate the platform to the right.
Figure 7.5 – Manual Platform Rotator
Position the platform perpendicular to the booms when
driving or stowing the aerial platform.
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Hand Crank