Practice question

What must you verify regarding the coupling pin (Kupplungsbolzen) after hitching a trailer drawbar into a standard tractor towing clevis (Zugmaul)?

The pin only needs to rest in the upper clevis hole so it can be pulled out quickly
The pin must pass right through both jaws of the clevis and be secured with a working safety linchpin (Klappsplint / Federstecker) so it cannot work loose
The pin may be replaced by a bolt of similar diameter without any locking device
No locking pin is needed where the journey is shorter than 10 km

Answer: B — The pin must pass right through both jaws of the clevis and be secured with a working safety linchpin (Klappsplint / Federstecker) so it cannot work loose

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