AL-KO overrun coupling 251 S (new version), AK 270, for V-drawbar, mounting top/bottom, dead-centre handbrake lever, for RB 1637/2051
AL-KO 251 S overrun coupling in the new version for A-frame drawbars, with AK 270 coupling head and dead-centre handbrake lever. When the trailer runs up, it transmits the braking force to the AL-KO 1637 or 2051 wheel brakes.
The coupling is mounted at the top and bottom of the A-frame drawbar. Before replacement, check the fitted wheel brakes by their type designation and, after fitting, adjust the brake system starting from the wheel brakes.
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