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Ford Tractors Discussion Forum
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three point hydraulics

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matt costea

09-13-2003 15:18:48




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I have an 8n and it will not lift any implements, it moves but wont support any weight.
where is the pump if thats the problem or any suggestions will be appreciated. I am mechanicaly able but not sure where anything is or what might be wrong




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matt costea

10-01-2003 11:04:38




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 Re: three point hydraulics in reply to matt costea, 09-13-2003 15:18:48  
i would like to thank those who responded with suggestions. The problem was fust a blown gasket to the piston assembly. it was a breeze to fix thanks again.



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Roger

09-13-2003 16:53:28




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 Re: three point hydraulics in reply to matt costea, 09-13-2003 15:18:48  
I may be stating the obvious here, but first make sure you have the PTO engaged. The hydraulic pump is run by the PTO shaft. If that's not your problem you may have a leak at the piston seals or the gasket may be blown out between the lift cylinder and lift cover. It's also possible that there's a problem concerning the control valve in the pump. There's a long lever extending down from the lift cover to the control valve lever at the bottom of the pump assembly (which is mounted from under the tracor.) It's possible that the long lever may have somehow popped out of the loop on the control valve lever. To check this, remove one of the round side covers from the center housing and locate the long lever. Follow it down (into the oil, or you could drain the oil) towards the bottom of the case and feel for the lever entering the loop. If this checks out okay, start the tractor and let it idle, engage the PTO and raise the 3-point control lever. Look into the upper area of the center housing at the lift cylinder (use a flashlight and keep hands out of housing!) to see if oil is leaking from the lift cylinder or lift cover. I've seen many times when a no-lift problem is nothing more than a blown gasket at lift cylinder or between lift cover and center housing where oil passage is routed (right front corner of lift cover) Hope this helps!

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