AL-KO overrun coupling 251 S (1500-2700 kg) bottom mounting with AK 270 and Soft-Dock
AL-KO 251 S overrun coupling for underslung mounting on braked trailers, with AK 270 coupling head and Soft-Dock. The flange version is bolted underneath the drawbar, leaving the space above the drawbar free.
The Soft-Dock acts as a buffer on the coupling head. Before replacement, check the mounting position and hole pattern of the existing coupling, as switching between top and underslung mounting changes the height of the coupling head. After fitting, readjust the brake system.
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