What is the potential outcome of not securing the crank handle after raising the iron trailer supports?

If the crank handle is not secured after raising the iron trailer supports, the supports could potentially fall off during transit. This is a crucial safety concern because unsecured supports can lead to structural instability. If the supports collapse, it may cause the trailer to detach or become unbalanced while in motion, posing serious risks not only to the vehicle and its cargo but also to other road users. Properly securing the crank handle ensures that the supports remain in place, contributing to the overall safety and stability of the combination vehicle during travel.