Brent in bama
New member
My jd 5420 has no power at fuse controlling key switch circuit
Not much to go on, what have you checked so far. Battery voltage, battery ground to frame, fuseable link and all the other fuses? Did anything occur the last time you used the tractor?
http://manuals.deere.com/omview/OMRE199128_19/?tM=FR
There is a vent tube on the left side of the engine that allows pressure and blow-by to escape. Mine is a 5520 but I have cleaned this tubing before. Maybe it's plugged up?