OK to continue answering myself... It is an alternator with external diode and voltage regulator exactly like any seated lawnmower. The diagnosis should'nt be too hard.
I will answer myself... After disassembling, there is no alternator. Just a generator like a lawn moweré I would appreciate help to diagnose my electrical :)
Hi, I just bought an old 1816C skidsteer. It has an ONAN 2 cylinder engine. I would like to know if it has an alternator or a generator? When started, the voltage does'nt go up that much... I will have to remove the engine to weld one of the oil tank and while I will be there I would like to...