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Farmall & IHC Tractors Discussion Forum
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100 Hydraulics

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Mike Beam

02-16-2005 09:56:30




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I have a 1954 Farmall 100 with hydraulics. The hydraulics work fine when there is no load on the system. When a load is applied nothing happens. What should I be looking for to correct this situation?




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bryan meade

02-16-2005 18:13:08




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 09:56:30  
is there any ruber hydraulic lines? if yes, then are you using an adapter block between the factory steel manifold tubes going to the touch controll system? if this is so, i have had the same problem as you. i found it was my adapter block. the one i bought was not made corectly and i had to take it to a machine shop to have half of it braze shut. with the block in the wrong state my hydraulics were in a paralel circuit. with it fixed they were in a series circuit. and my problem went away.

and if you dont have any rubber lines, then ill but out.

thanks
bryan

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Mike Beam

02-21-2005 13:56:46




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 Re: 100 Hydraulics in reply to bryan meade, 02-16-2005 18:13:08  
I do not have rubber lines. They are all metal tubes. What I now need to know is how do I bleed the system. I believe I have air in the line.



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Joe in TN

02-16-2005 18:01:14




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 09:56:30  
Got a Farmall 100 offset. Check you wire filter that goes in the side. Four Bolts hold it on. May be blocked or clogged up.



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Hugh MacKay

02-16-2005 15:59:28




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 09:56:30  
Mike: If this is an offset Farmall 100, descendant of the Super A then Eric is leading you down the garden path. You have no external hoses, is that right? Your system is controlled by two levers right beside the throttle, right? If all these items are correct listen to The other guy.

Now if you have the Farmall Hydro 100, Eric could be right.



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EricB

02-16-2005 11:37:12




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 09:56:30  
Mike: Sounds like low pressure. 1: Check fluid level
Is there a change when the RPM is increased. When you are applying load to the hydraulics is there fluid returning to the resevoir on the other side of the load.Loosen hose fitting to check.
If the 3pt hitch works and the auxillary doesn't your control valve may be hooked up backwards, Your trying to use return pressure to do the work.
What are you trying to lift?

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Mike Beam

02-16-2005 12:22:07




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 Re: 100 Hydraulics in reply to EricB, 02-16-2005 11:37:12  
The fluid level check fine. There is no change when increasing the RPM.
I will have to check the fluid returning.
The 3pt hitch works. Where is the control valve located in the system?
I am trying to lift a front blade.



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EricB

02-16-2005 13:13:05




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 12:22:07  
Ok! if the 3 pt hitch works it's not the pump. Its a plumbing issue.
On the controller (the leaver) you should have a pressure feed line, and a return line to your resevoir, plus either a single or double line to your blade cylinder.
Try reversing the feed line and the return line at the controller.
If you have a single action cylinder, you need a single action insert inside the controller. If you have a double action cylinder you need a double action insert. Most controllers come with double action.
If you need single action see your dealer and get the insert valve you need. Changing it is usually very simple. But you will have to plug up one of the two holes since you will only be using one hose. If you plug up the wrong one it will not work. (Thinking about that! If you are using single action now, you may want to reverse those lines before you go spendding any money.)
Chances are the controller is fine. Its either 1: a feed in/out reversal
2: wrong valve in the controller
3: reversed line on the output to the single action cylinder.
Let me know how it goes (other than messy). Is your blade single or double action? (One or two lines required) Has this system ever worked or is this a new installation you are doing?

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Mike Beam

02-16-2005 13:58:08




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 Re: 100 Hydraulics in reply to EricB, 02-16-2005 13:13:05  
Thanks for the continueing iformation. I am out of town during the week so I will only be able to try your suggestions during the weekends. I have two levers. One for the front and one for the 3pt. The blade is lifted by front hydraulic. The lines are solid piping so they can only go on one way. I will check to make sure there is no restrictions in the piping first. I will let you know how it goes if I can get to it this weekend.

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EricB

02-16-2005 15:24:08




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 13:58:08  
Mike: Ive opened my email to save starting a new thread. Contact me directly.



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Novel Idea Guy

02-16-2005 15:23:49




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 13:58:08  
While helpful, you and EricB are talking about two completely different things.

I believe you are talking about the 100's TOUCH CONTROL system. EricB is imagining a conventional valve-hose-cylinder arrangement. His suggestions will help to a point, but not entirely.

The Touch Control system is a self-contained block under the gas tank with two pairs of hydraulically-actuated rocker arms. These two arms can be connected to any number of implements to raise and lower them.

So, you're saying that the arm attached to the rear lift (3pt conversion kit or 1pt fast hitch?) works fine, even under load?

If that's so, then you probably have an issue with either the valve or the cylinder that moves the arm for the front blade. All that stuff's internal to the touch control block, and the only way to troubleshoot it is to pull it off and take it apart...

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Mike Beam

02-21-2005 06:34:58




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 Re: 100 Hydraulics in reply to Novel Idea Guy, 02-16-2005 15:23:49  
I do have a TOUCH CONTROL system on by 100. I have now been able to check the head gasket and the hydraulic pistons for movement and all are fine. I have been told there is probably air in the line. How is the best way to bleed the system of air?



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EricB

02-16-2005 15:22:15




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 Re: 100 Hydraulics in reply to Mike Beam, 02-16-2005 13:58:08  
From what you are saying the 3pt hitch sounds like an accessory and not a factory unit. (I don"t know the 100 all that well.) If one lever is working well and the other isn"t, it leads me to believe you have a single cylinder on the blade and a double action insert behind the lever.
Here"s a messy suggestion. If you have just one hose going to the blade there should only be pressure when the lever is activated. Disconnect the hose to the cylinder, start the tractor and then pull the lever. There should be no flow until the lever is moved. Then lots.
If this works then you may have a seal broken in the cylinder, otherwise there is a mismatch in the controller.

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Novel Idea Guy

02-16-2005 15:26:49




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 Re: 100 Hydraulics in reply to EricB, 02-16-2005 15:22:15  
It's a touch control system.



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