In this option, low-pressure HR servo joysticks are mounted in the cabin, and the main valve block is located on the crane column. The LS variable displacement pump is positioned on the trailer's drawbar. The movements of the crane arms are proportionally controlled, and the grapple and telescope are operated electrically from the buttons on the joysticks. The quick coupling panel option allows for fast detachment of the trailer from the tractor without removing the joysticks from the cabin. In this option, only the joysticks are routed to the cabin without a valve block, making them easier to install independently and allowing for a much more ergonomic position compared to HE / STD control. This option is available in cranes with model numbers 4768 and larger.
LS variable displacement pump:
Pumps with variable flow and capacity up to 230 l/min, in conjunction with perfectly matched LS distributors individually tailored for each crane model, meet the highest expectations of users. The systems have a wide range of adjustments for the speed of each section individually, as well as acceleration and deceleration of the entire crane's operation. The system allows for perfect calibration according to the operator's skills and the type of work performed by the machine. This type of hydraulics has slightly higher requirements for service personnel, but besides efficiency and work comfort, the LS system better protects the machine from errors or bad habits of the operator.
Advantages of the system include: