Re: Frankenstein Crane
on the old B E 's when going uphill or downhill you steered with one track only. They were square jaw teeth and when you pulled all the way it would engage a stationary one to lock the track to turn but if you were moving wouldn't engage either way so if you tried to turn with the other track and didn't have the first one all the way in you were in free wheel all you could do was drop the boom or jump.
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