750 John Deere

[aau10]

Can a bad voltage regulator cause the fuse link going to the starter to burn out?

 

[CobyRupert]

Interesting question. Here's a what if....

Say the battery only charged to 8 volts, would the starter then try to draw 150% of its normal current and blow the fuse link? I don't know. More research on voltage/current relationship of dc motor required.

Edit: Maybe I have that inverted. It may be if the battery over charges to 18volts, then the starter would draw 150% of it's normal current.

 

[Ed of all trades]

Yes and worse.

 

[jd110]

I have never seen a voltage regulator blow the fusible link, but I guess it is possible. Usually a pinched or rubbed through wire somewhere is the culprit. Quite often I have seen mice chew through wires under the dash. They seem to like that area for some reason. Remove the panel around the key switch and look around.

 

[satellite]

I'd bet on the mice as well. I had to get my 750 rewired due to mice chewing the wiring harness. Tractor stays inside now.

 

[Zebrafive]

I agree with jd110, I think you will find a pinched or bare wire shorted to ground.