I would bet that the truck frame was a special grade of cast steel to give the maximum strength possible. Often it is easier to have cast for more complex shapes and corners, than using regular steel pieces. For the stress on a big truck like that, that may need repairs, you'd have to use a special type welding wire. It was most likely done with Flux-core for speed and to get the right properties in the weld. Bucyrus had an ad about a month ago in the paper. They were looking for welders for a temporary job. Said they would need them for 2 years to for a dragline project! Lots of Flux-core used to build a walking dragline. Dave
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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