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Harry Ferguson Tractors Discussion Forum
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TO30 lift

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diddlestick

08-04-2005 07:28:25




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I am restoring a TO 30 that has been sitting for 15 years. the enging is doing well, but the lift has quit. It had been working poorly before quiting. It was all up or down with no tween. Now it won"t lift at all, with nothing on it I can easly lift the lift bars, but they fall as soon as i release them. Looking for advice before I start digging into the thing thanks.




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John (UK)

08-06-2005 13:23:29




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 Re: TO30 lift in reply to diddlestick, 08-04-2005 07:28:25  
With the round cover off , when you move the hydraulic lever you should see the Control Fork that hangs down move back and forward quite a way, not just a little bit, if it only moves a little it could be the Control Valve stuck in the pump. If it moves a long way it could have become detached form the Control Valve which can happen if you attach something to the top link connection that shouldn't go there or it gets a shock load on it.

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tokruys

08-06-2005 05:21:50




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 Re: TO30 lift in reply to diddlestick, 08-04-2005 07:28:25  
After reading brotherdave's post I remember that my lift had quit working one time and I found that the Control Fork had become disconnected from the Control Valve. The forks had spread far enough (in 50+ years) that it just popped off. A gentle sqweeze of the forks and reconnecting fixed the problem.



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diddlestick

08-11-2005 07:00:11




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 Re: TO30 lift in reply to tokruys, 08-06-2005 05:21:50  
Thanks for the help. I found the fork seems to be stuck at the bottom. It moves and pivots near the center but not much if any where it hooks to the valve. Also found the quadrant dosen"t start moving the fork "till it"s 60% down. Any easy way to free the valve without pulling the pump?



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brotherdave

08-05-2005 06:45:32




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 Re: TO30 lift in reply to diddlestick, 08-04-2005 07:28:25  
Had a problem like this on a TO-30. My problem was caused by a completely worn out control valve actuator fork inside the tractor case. The control rod on the cresent had engaged the fork so many times through the years that the top part of the fork was worn clean through. Even though the control rod on the cresent was moved up and down, it wasn't engageing anything. You can see if this is the case by removeing the cresent/control rod from the houseing and looking inside with a flash lite. Hope this helps.

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tokruys

08-05-2005 03:31:03




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 Re: TO30 lift in reply to diddlestick, 08-04-2005 07:28:25  
I would check your quadrant setting before digging into it too far. Mine quit working one time and this was all it was.



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Jerry/MT

08-04-2005 10:42:59




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 Re: TO30 lift in reply to diddlestick, 08-04-2005 07:28:25  
It's either a stuck control valve as John, UK says or it could be a bad leak in the hydraulic cylinder. With the side plate off and the engine running and PTO engaged. look up at the cylinder and see if there is a lot of fluid running out of the cylinder. (BE CAREFUL WHEN YOU DO THIS AND UNDER NO CIRCUMSTANCES SHOULD YOU PLACE YOUR HAND IN THE HOUSING WITH THE ENGINE RUNNING!) If you seea lot of fluid running out constantly, you need to replace the piston seals or the cylinder depending on what you find when you take the cylinder out.

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John (UK)

08-04-2005 08:57:30




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 Re: TO30 lift in reply to diddlestick, 08-04-2005 07:28:25  
Have you tried the Control Valve to see if it has stuck after standing all that time
remove one of the round side covers and move the Control fork hanging down from the top GENTLY back and forward, if that doesn't free it, email me at:- fergusontractors at tiscali dot co dot uk
tell me what you have found and what you have done and I will send you the information you need to sort it out.



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