Lull 644B Operation Manual - Manual (Page 20)

16
INSTRUMENTS AND CONTROLS
Raising the Boom
Pulling back on the rear joystick raises the boom.
Extending the Boom
Moving the rear joystick to the right extends the boom.
Retracting the Boom
Moving the rear joystick to the left retracts the boom.
AUXILIARY JOYSTICK CONTROLS
General Description — Auxiliary Joystick
Controls
Auxiliary Joystick Control
A switch is located on the top of the front joystick, under
a protective rubber cap. Pressing this switch down with
your thumb activates the auxiliary function.
Hold the switch down while moving the joystick left and
right. Functions for specific attachments are shown
below.
Note: Releasing the switch while moving the joystick
left or right changes the function of the joystick
back to transfer carriage control.