AL-KO overrun coupling 90S/3, top mounting, 700-1000 kg, hole pattern front/rear/side 100/165/125 mm, with spring cylinder
AL-KO 90S/3 overrun coupling for top mounting on braked trailers, in the flange version with spring cylinder on the handbrake lever. The unit is bolted on top of the drawbar; the spring cylinder maintains the braking effect of the parking brake when the trailer is stationary.
Before replacement, measure the three hole spacings on the drawbar flange and compare them with the hole pattern of the coupling. After fitting, adjust the brake system starting from the wheel brakes.
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