Go! Drive and Camp Camp Guide - - The Paperwork -

An over­run brake (or surge brake) is a Ger­man in­ven­tion that have been used all over the world for over two decades.

This is how it works: The cou­pler of the ve­hi­cle be­ing towed is at­tached to a damp­ened slid­ing mech­a­nism (A).

When you step on the brakes, the tow­ing ve­hi­cle slows down while the ve­hi­cle be­ing towed con­tin­ues to move for­ward, thus ex­ert­ing pres­sure on the slid­ing mech­a­nism. At­tached to the rear end of the slider is a brake lever (B) that ro­tates on a pivot.

When the slid­ing mech­a­nism pushes the up­per part of the lever rear­ward, the bot­tom end si­mul­ta­ne­ously moves for­ward.

At­tached to the lower end of the lever are two ca­bles (C) or rods that lead to the drum brakes on the wheels. So when­ever the lower end of the lever moves for­ward, the ca­bles are pulled to en­gage the brakes of your trailer or car­a­van.

When­ever a tow­ing ve­hi­cle ac­cel­er­ates the slid­ing mech­a­nism is once again ex­tended, the brake lever moves for­ward while its bot­tom end moves back­wards which in turn re­leases the brakes.

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