My Expedition has a volt gauge in the dash. An altinator pretty much will not do anything if the voltage is too low. A generator will start to charge from almost zero volts. Take a very long time to charge but eventually will. Let us keep this simple. If everthing in you system is working correctly....an amp gauge will show you that work is being done. After you start your machine the amp gauge will show 5 or even 10 amps. of positive charge. The altinator or stator, or generator are working to top off the battery. Same if you start turning on lites, power clutches etc. The gauge shows a negative till the charge system can catch up. When you measure your battery you are saying yup the battery is good. When you measure and you see 14.2 volts you can say yup the whole charging system is ok. A little better than clear as mud.
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let�s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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