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post #1 of 13 Old 07-14-2019, 07:36 PM Thread Starter
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Starter not getting power

I have a 1956 IH 300 utility
and a couple weeks ago it started just randomly quiting.
I wiggled the ignition switch and it would start.
So I replaced the ignition switch.
Well it still won't start.
I got a multi-meter and I have 12.9 volts at the big starter wire but no power to the little selonid wire when turning the key.
There is a little relay or something by the battery what is that?
I don't know where to go from here.
I need some direction here.
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post #2 of 13 Old 07-14-2019, 09:39 PM
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Re: Starter not getting power

That little thingy is a circuit breaker, it may be open.
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post #3 of 13 Old 07-14-2019, 09:49 PM
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Re: Starter not getting power

The other things to check might be a fuse, corrosion of a connection or a safety switch.

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post #4 of 13 Old 07-15-2019, 10:08 AM Thread Starter
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Quote:
Originally Posted by RoyM View Post
That little thingy is a circuit breaker, it may be open.
Ok I'm going to remove it and check it out. Thanks.

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post #5 of 13 Old 07-15-2019, 10:09 AM Thread Starter
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Quote:
Originally Posted by kklowell View Post
The other things to check might be a fuse, corrosion of a connection or a safety switch.
Ok I will check that out. Thanks.
Someone told me clean all the grounds.

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post #6 of 13 Old 07-15-2019, 08:38 PM Thread Starter
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I decided to take all the conduit off all the wiring on the left side of the tractor.
Dang it's a mess.
Whoever wired this sucks.
No crimp connectors nothing...
I got a IT manual for my OH 300 utility but strangely it doesn't have a wiring diagram.
Dang it now I gotta figure out this mess with no wiring diagram.
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post #7 of 13 Old 07-15-2019, 08:44 PM
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Re: Starter not getting power

Check for continuity through that circuit breaker....if no continuity, replace it...then disconnect, clean and reconnect very wire terminal that you can find...rewiring it may be a good idea...without a diagram simply just change one wire at a time...use different colored wires to differentiate and use full lengths without connecting pieces in the middle...you can actually just try to install a 12v 40 amp relay switch that will help unless some connection is just not making contact at all
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post #8 of 13 Old 07-15-2019, 09:13 PM
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Re: Starter not getting power

I'd look online for a wiring diagram..
Replacing one wire at a time might work,but if the previous "electrician" put a wire where it doesn't belong,you'll be copying his mistake..


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post #9 of 13 Old 07-17-2019, 10:16 PM Thread Starter
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Quote:
Originally Posted by Tractor-Holic View Post
I'd look online for a wiring diagram..
Replacing one wire at a time might work,but if the previous "electrician" put a wire where it doesn't belong,you'll be copying his mistake..
I got the IH 300 utility fixed today.
She's running.
The cobble job "electrician" had spliced wires together by stripping back the coating and it corroded and broke.
I rerouted the wires direct to the battery instead of the starter post.
Looks alot cleaner now.
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post #10 of 13 Old 07-18-2019, 07:10 AM
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Re: Starter not getting power

Glad you got it up and running.
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post #11 of 13 Old 07-18-2019, 07:22 AM
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Re: Starter not getting power

As long as you're already greasy, go ahead and service those ground connections.

They're every bit as important as the 'hots', and keeping them in just as good a condition will serve the machine and you well in years to come.

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post #12 of 13 Old 07-18-2019, 09:55 AM
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Re: Starter not getting power

Quote:
Originally Posted by Kubota Ronin View Post
As long as you're already greasy, go ahead and service those ground connections.

They're every bit as important as the 'hots', and keeping them in just as good a condition will serve the machine and you well in years to come.
+1 on the clean grounds. Very important.

Joe


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post #13 of 13 Old 07-18-2019, 07:45 PM Thread Starter
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Quote:
Originally Posted by micah68kj View Post
Quote:
Originally Posted by Kubota Ronin View Post
As long as you're already greasy, go ahead and service those ground connections.

They're every bit as important as the 'hots', and keeping them in just as good a condition will serve the machine and you well in years to come.
+1 on the clean grounds. Very important.
Thanks for the advice guys.
I cleaned up the grounds with a dollar store wire brush set. Worked good.

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