Lull 644B Operation Manual - Manual (Page 19)

INSTRUMENTS AND CONTROLS
15
Tilting Attachment Down
Pushing forward on the front joystick tilts the attachment
downwards.
Extending the Transfer Carriage
Moving the front joystick to the right extends the transfer
carriage
Retracting the Transfer Carriage
Moving the front joystick to the left retracts the transfer
carriage.
Rear Joystick
The rear joystick controls boom elevation and
extension. An auxiliary function is included on the rear
joystick. This auxiliary function is reserved for future
attachment designs and is not activated on current
Model 644B machines.
Lowering the Boom
Moving the rear joystick forward lowers the boom.