Is there a way of having a single or tandem axle trailer steer suitably for backing up.
We pull an industrial machine on a trailer equipped with a pintal hitch. The trailer and machine has a combined weight of about 4500 pounds. The trailer is pulled on the highway by a heavy straight truck. It normally has to be backed up into position over rough ground. No problem going forward and not a lot of problem backing up on smooth level ground if there is lots of turning space but in our application there is little turning room and the ground is usually uneven and the trailer wants to swing to one side or the other uncontrollably. If we could lock the trailer in line with the truck that would solve the problem however we would tear off the wheels from the axles because they would be dragged sideways as the heavy truck was backing up and turning to avoid obstacles.
Does anyone know of a steering axle or mechanism that would keep the trailer in line with the truck while backing up. Caster wheels would do this but would not be strong enough and caster wheels would not stand up to use at highway speed.
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