Lull 644E-42 Operation Manual - Manual (Page 42)

40 Model 644E Origin 3/04
Operation
Auxiliary Hydraulic Control
The auxiliary hydraulic control is used to control the functions of an optional
attachment that is mounted to the vehicle and requires a hydraulic supply for
operation. Some of the optional attachments that require auxiliary hydraulics are:
Side Tilt Carriage, Swing Carriage, 3 ft Truss Boom w/Winch, 10 ft Truss Boom
w/Winch, Single Fork Positioning Carriage, Dual Fork Positioning Carriage and
Auger.
The button (1) to activate the auxiliary hydraulics is located on the top of the front
joystick (2). Pressing the button with your thumb activates the auxiliary hydraulic
function. The button must be held down while moving the joystick to the right or left.
IMPORTANT! Releasing the button while moving the joystick to the left or right will
change the function of the joystick back to the transfer carriage extend/retract mode
of operation.
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