Looks like a simple cutout relay there on the genny. Make sure the genny and the relay (via its mount to the genny which should be grounded ???) have good solid grounds and the belt is tight. Just in case the ammeter is bad or stuck not showing charge it may or may not still be charging. When running at fast RPM a working charging system should raise battery voltage to at least 6.5 to 7 on a 6 volt or 13 to 14 on a 12 volt, is it ?????????
Click on my Troubleshooting procedure below for step by step methods to see if non charging is due to the genny itself orrrrrrr the relay etc. In Para 5 it shows how to MOTOR TEST the genny alone to see if its the problem, if it passes BOTH tests its likely okay.
On many of the old manual light switch type Low High Charge controllers that used a Cutout Relay (like you have) if they dont charge its because the Low High switch ISNT WELL GROUNDED orrrrrr is bad orrrrrrr the wire from FLD post on the genny (NOT one to cutout) up to the switch is bad/broke/open
See if it charges if you jump the gennys FLD post (NOT one to cutout relay) to ground ?????????? If so but NOT otherwise the switch is bad or not grounded or the wire from FLD to Low High charge switch is bad/open........
Tighten the Belt,,,,,,, Polarize the genny (see my procedure),,,,,,,,, Insure Genny and Cutout Relay have good grounds,,,,,,,,,, insure switch has a good ground and is wired down to FLD post on genny,,,,,,,,,,,,,,,,, try to ground the gennys FLD post,,,,,,,,,, Work my Troubleshooting Procedure for cutout relay style systems..............
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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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