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help tractor looses power randomly

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2 years 2 months ago #54570 by readbeardosc
help tractor looses power randomly was created by readbeardosc
im working on a case 275 magnum tractor. it has 2-12 volt batteries hooked up in parallel .a positive wire runs directly to a 100 amp fuse.then goes to a cab power solenoid.this tractor will run fine for 20 some times 10 minutes fine then lose all power. if you grab that wire from battery to fuse and shake it around.the power comes back on and wont die for another 10 or 20 minutes.ITS GOTTA BE SOMETHING IN THAT WIRE.
how can i prove it ive done drop test from battery post to clamp and clamp to wire. wire to fuse.

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2 years 2 months ago #54579 by Chad
Replied by Chad on topic help tractor looses power randomly

it has 2-12 volt batteries hooked up in parallel .a positive wire runs directly to a 100 amp fuse.then goes to a cab power solenoid....ive done drop test from battery post to clamp and clamp to wire. wire to fuse.

Do a drop test between the two farthest-away points. Put one test lead the Battery (+) post, and the other lead the cab power solenoid. You want to see close to zero volts. What voltage do you read, when the tractor dies?
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