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Control of Quick Coupling Process carried out safely

Lehmatic safety control

The safety and flexibility of hydraulic quick couplers for excavators is improved by a new safety feature from Lehnhoff: the Lehmatic Safety Control (LSC). It is a high-quality assistance system that prevents unintended triggering of the coupling procedure.

The system is operated from the safety of the driver’s cab, so he or she always has a clear overview of all coupling statuses. Two sensors monitor the coupling process on the lock plates and the locking pin independently to ensure the attachment is safely and correctly in place at all times. Two-finger operation is required for the unlocking function.

Should the coupling process malfunction, the LSC will automatically detect it and signal the driver. It also detects if wear limits are exceeded or if there is signal interference within the system. Load hook mode is used for hoisting without an attachment. Lehnhoff quick coupler systems with LSC are available from Worsley Plant for almost every excavator size.

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