Posted 8/14/2006 22:08 (#35813 - in reply to #35684) Subject: RE: JD 4440 charging system problem
Shaftsbury, Vermont (SW VT)
Use an ohmmeter or the ohms function on a multimeter to test a diode. Put simply, it is an electrical check valve. It should pass current one way with little or no resistance, and have infinite resistance the other way. Oliver Durand