Posted by showcrop on October 13, 2018 at 15:49:22 from (75.68.37.174):
Our Fire Department's new 3,000 gal. tanker is on a Peterbilt Chassis. It has a disturbing behavior that we are having problems getting resolved. When under light acceleration at around 35 MPH, if you hit a bump it will start a jumping movement that seems to have a kind of forward backward motion to it. It makes me think of how older loader backhoes would get to pitching forward and back on the road or how a tractor with a heavy drawbar load like a manure tanker could get to "galloping" It has done it to me twice and has done it to others too. You have to hit the brakes and slow right down to stop it. The truck has some electronics that sense motion, and intercede to prevent a crash. If you are rounding a corner too fast you loose power until you slow down a little. Peterbilt did some front to back leveling on it and sent it to the tire store and got the tires checked out, but no resolution yet. They had it for four days this week. Any ideas?
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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