Lull 644E-42 Operation Manual - Manual (Page 45)

Operation
43 Model 644E Origin 3/04
Boom Lift/Lower and Extend/Retract (Default Mode)
Front button (3), not depressed, operates the following boom functions. The joystick
can be moved from the center position into any of these quadrants. The joystick will
return to the center position when released.
Boom Lift (5) ................................ move handle backward
Boom Lower (6) ........................... move handle forward
Boom Extend (7) ......................... move handle to the right
Boom Retract (8) ......................... move handle to the left
OU0060
OU1221
7
6
3
5
8