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Re: 4430 2 speed and steering problems! Help!

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Author  [Modern View]

07-09-2014 04:45:33

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Do the easy checks first. Make sure the linkage is connected and operating the 2 speed shift lever properly. I've had the pins fall out before.

First thing you need to do is do a clutch pressure check and see where you're at. Need at least 175 psi on a 4430. All of the test ports are -5 oring boss and you'll need a 300 psi gauge and some hose to connect everything. Once your pressure gets below about 150 psi it stops charging the main pump and you will loose brakes and steering.

The last one I worked on that had similar problems had the filter relief valve stuck open and it was bypassing oil directly back to the sump, that valve is located in the housing behind the filter.

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07-09-2014 05:00:06

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 Re: 4430 2 speed and steering problems! Help! in reply to MikeJM, 07-09-2014 04:45:33  
Thanks Mike! What do you mean by -5 boss?

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4010 puller

07-09-2014 06:00:31

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 Re: 4430 2 speed and steering problems! Help! in reply to johnyquest69, 07-09-2014 05:00:06  
by -5 boss he means boss o ring fitting. That"s a type of thread like what you would call pipe thread, course or fine thread. The clutch valve body on the left hand side of tractor under battery box has ports. You take the plug out and install a fitting that is boss o ring thread and hook a 300 pound test gauge to the one marked clutch, rev engine up to 1800-2500 rpm and see what you are reading.

Also, if its an early model 4430, on that valve body there will be another plug/port marked lube, this measures your transmission pump pressure, which could also be a problem. Cant remember exactly what it should read but now with my new transmission pump in mine now reads 50 psi, I think it should be between 20-30 psi anyway.

Do you have a service manual? It discusses this pretty well.

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07-09-2014 07:31:45

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 Re: 4430 2 speed and steering problems! Help! in reply to 4010 puller, 07-09-2014 06:00:31  
Thanks for your reply. Don't have a servic manual, but may need to invest. Mo money, mo money, mo money!!!

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