I have a Hyster S155FT with the Dana 3 speed transmission. This thing is having issues when traveling. If you speed up, and let off the throttle normally, it will coast to a stop just fine. However if you happen to "burp" the throttle during deccel it will lock up and jerk to a halt instantly, almost as if the anti-roll back feature is seeing some sort of signal causing it to lock up. Im running out of ideas as to what could be the cause of this, and the local Hyster dealer is no help to me either.