1 of my B7200 will not start. There is power to the key. It will not preheat when key is turned to the left. It will not crank when turned to the right. The dash lights and fuel gauge do function when the key is turned on. Ideas?
You state there is power to the key,once you turn the key,is there power beyond the switch?
Seeing you have a known good switch in your second tractor,I would be tempted to swap them out( disconnect batteries ) and see what happens
I should state this is just a gut reaction,could be many reasons,possiable safety switchs?
Have your battery load tested and check your cables. Could be a bad cell in the battery. Has enough juice to show at the key switch. But once a load is placed on the battery they can drop to nothing. A bad ground or positive cable can do the same thing.
I took Daren Todd's advice and determined it's definitely a battery or cable problem. When I connected the charger and set it to the 200 amp engine start mode, the glow plugs heat and the engine cranks real slow. I will get the battery tested before I go any farther. I was sure the battery was good but It's either the battery or a bad cable!