We charged 8 (12) volt batteries in series parallel for 24 volts. These were used in the M60 Tank. We were running cold starts at -50F. Had to pull the batteries at that temp after attempting to make a start and reinstall another set of fully charged batteries. Then they had to be cold soaked. We did a Soviet vehicle and used the same batteries which were Sears Die Hard to make 3 starts at -65F. It was their preheat system. Ten minutes of preheat and both engines would start like summertime. Hal
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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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