dead short?

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brewzalot
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dead short?

Postby brewzalot » Mon Jun 13, 2016 10:23 pm

6 volt, battery ignition, positive ground, 1961 Cub. All new wires, charge indicator and VR. Rebuilt generator- ran fine for several months now.Old battery 4 years old, figured it was shot. Would not take a charge and read 0 volts across terminals( with cables still attached however) I did not try charging it out of the tractor, wish now I had.

Installed a new battery, large spark when hooking up second terminal wire at battery.
Charge meter needle buried in discharge.
Removed smaller wire at starter going to charge meter, sparking stopped at battery. Hooked the wire back up, took amp reading on small wire, drawing 30 amps. Got dark -quit for the night.

Appears to be a dead short beyond the starter somewhere. I did start the tractor and it ran fine, charge meter needle read one line into charge with tractor running . That seems odd considering everything else?

Any thoughts or trouble shooting tips appreciated.

thanks, Tim

ScottyD'sdad
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Re: dead short?

Postby ScottyD'sdad » Tue Jun 14, 2016 6:52 am

Insulation may have rubbed off a wire, somewhere in the system. Check all the wiring.
Ed
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Eugene
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Re: dead short?

Postby Eugene » Tue Jun 14, 2016 6:55 am

Disconnect the wire attached to the B (battery) terminal on the voltage regulator. Check to see if you still have the short.

Thinking cut out portion of the voltage regulator is not properly functioning.
I have an excuse. CRS.

Gary Dotson
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Re: dead short?

Postby Gary Dotson » Tue Jun 14, 2016 6:59 am

You have all the symptoms of a stuck contact in you voltage regulator. Remove the "Bat" wire from the regulator and re-test. You can remove the cover from the regulator to see what's going on. Cleaning the sticky contact should help the problem, but I'll bet it will do it again.

robertst
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Re: dead short?

Postby robertst » Tue Jun 14, 2016 8:43 am

I'm voting with Eugene and Gary stuck or faulty cutout.

brewzalot
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Tractors Owned: '57 cub Loboy
'61 cub
Circle of Safety: Y
Location: Wisconsin, Burlington

Re: dead short?

Postby brewzalot » Tue Jun 14, 2016 8:53 pm

Gary Dotson wrote:You have all the symptoms of a stuck contact in you voltage regulator


Eugene wrote:Thinking cut out portion of the voltage regulator is not properly functioning.


After confirming issue by taking off bat wire, took off VR cover, while doing so must have opened the stuck contact. Problem gone...for now.

Right on fellas, thanks


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