Lull 644E-42 Operation Manual - Manual (Page 96)

94 Model 644E Origin 3/04
Operation
The attachments listed below are supplied with their own individual set of capacity
charts as shown in the last section of this manual:
ï 72" Swing Carriage
ï 10 Foot Truss Boom
ï 10 Foot Truss Boom w/Winch
ï 3 Foot Truss Boom w/Winch
Hydraulically actuated attachments also have a maximum hydraulic pressure rating.
Ensure that the maximum rated hydraulic pressure of the attachment is equal to or
slightly greater than 3,000 psi (206,8 bar), which is the maximum pressure of the
vehicleís auxiliary hydraulics at the quick disconnect couplers.