Posted by greygoat on December 03, 2008 at 06:16:10 from (75.121.141.212):
In Reply to: Oil filters revisited posted by Brian Jasper co. Ia on December 02, 2008 at 17:21:26:
I thought that some of you may be interested in What Burlington Northern Santa Fe railroad does in oil filtration on locomotives. The engine is a General Motors V16 of 645 cubic inchs per cylinder. Idle is 150-200 RPM, wide open at 60- 70 miles per hour is 800 RPM, horsepower is 3000. Oil filters are of a "sock" type 3 feet long and about 8 inches in diameter. There are 7 of them in a steel filter housing about the size of a 55 gallon drum. Crankcase capacity is 400 gallons, the oil is a very high detergent/dispercent which holds particles in suspension for the filter to take out. Up until my retirement BNSF was using a straight weight # 50, heated in winter, and dispensed through a hose-much like a gas station hose, with a nozzle on the end. From low to full mark on the dipstick was 50 gallons so it took a few minutes to add lube oil. At every service point, where locomotives were fueled, an oil sample was taken. Samples could be up to a dozen a week, and were sent to regional labs, analyized and recorded by computer. Filters were changed every 90 days, but lube oil was changed only when the computer said to do it. Fuel tank capacity on a 3000 horsepower locomotive is 3000 gallons. At 60 miles per hour, pulling a mile long train, (2 or 3 locomotives)each will use 200 gallons per hour.The nations 2 largest railroads, Burlington Northern, or Union Pacific, each use as much fuel and oil per year as the U.S. Navy.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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