HS - hydraulical quickcoupler
Convenient, quick and safe locking from driver's cab at the touch of a button. The locking operation is carried out via a lockable push button or optional with the control panel Lehmatic Control (see figure). An Optical locking indicator, visible from driver's cab, indicates the right locking position of the locking pins. A constant pressurisation and an integrated safety valve on the hydraulic cylinder ensure an always secure holding position of the lock.
NEW: All hydraulic quick couplers of the sizes HS01 / HS03 / HS03H / HS08 / HS10 / HS21 / HS25 have the new Lehnhoff Double Lock as standard. The system prevents the attachment from falling off in the event of incorrect locking, thanks to the centrally located additional claw.
All quickcoupler systems that are equipped with Double Lock safety features are listed as eligible quickcoupler systems at BG Bau. See link:
https://www.bgbau.de/service/angebote/arbeitsschutzpraemien/praemie/schnellwechseleinrichtungen/