750 John Deere

/ 750 John Deere #1  

aau10

New member
Joined
Jun 7, 2013
Messages
1
Location
union grove, al
Tractor
john deere
Can a bad voltage regulator cause the fuse link going to the starter to burn out?
 
/ 750 John Deere #2  
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.
 
Last edited:
/ 750 John Deere #4  
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.
 
/ 750 John Deere #5  
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.
 
/ 750 John Deere #6  
I agree with jd110, I think you will find a pinched or bare wire shorted to ground.
 

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