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Tractor Talk Discussion Forum

Loader problem

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Vern

06-05-2004 18:58:16




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I have a Ford 4400 industrial tractor with front loader and the loader will leak down and the bucket will leak down with the tractor running or not, I don't know if it is the cylinders or the valve or something else,How can I check to see where the problem is? I just bought the ttactor and it has been doing this since I got it. Thanks




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KP

06-06-2004 18:49:13




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 Re: Loader problem in reply to Vern, 06-05-2004 18:58:16  
Connect a gauge to head end of cylinder,lift the loader;watch the gauge,if pressure increases as it goes down,you have a cylinder leak.



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Greg

06-06-2004 16:23:26




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 Re: Loader problem in reply to Vern, 06-05-2004 18:58:16  
Lower the loader to the ground. Remove the hose on the barrel end and plug it. Do one cylinder at a time. Start the machine and actuate the control to lower the loader cylinders. As the rods are already at the end of stroke, if there is an internal leak, you will get oil out of the fitting on the barrel. Repeat this with the other cylinder. This will determine a cyinder or a control valve, my bet is a cylinder.

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Tony

06-06-2004 17:56:52




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 Re: Re: Loader problem in reply to Greg, 06-06-2004 16:23:26  
Thanks Greg, I learned somthing here also. I guess I'm old school. That was the method we used when the cylinders used back to back leathers for two way cylinders. They could leak one way and not the other. Tony



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Tony

06-05-2004 22:24:22




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 Re: Loader problem in reply to Vern, 06-05-2004 18:58:16  
The only way I know of is to isolate each cylinder with a shutoff valve. You have to take the line apart & install a valve on each one of the cyliders (on the hose that goes to the end of the cylinder that raises the loader). Then raise the loader, shut off the valves to the raising cylinders, if it continues to drop or start to sag to one side, the problem is in the cylinders themselves, If it doesn't drop anymore the problem is in the control valve on the tractor. You can also get by with only one shutoff valve on the main line because the cylinders are hooked together, but you can't isolate the problem if only one of the cylinders is leaking that way. It will still show you if your tractor valve is bad however. Good Luck. Tony

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