The suspension eye of the frame grab is attached to the load hook of the excavator / loader and placed on the manhole cover. After releasing the pawl, the frame with the cover is lifted and lowered onto the shaft cone. When the manhole cover is lowered, the pawl engages automatically and the grab opens automatically.
By rotating the grab by 180°, the grab and the hooks can also be used to lift the covers effortlessly out of the frame. The frame grab is supplied in a galvanised finish as standard. The patent for the frame grab has been granted.