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Massey Harris & Massey Ferguson Tractors Discussion Forum
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MF175 frontloader hydralic losing height

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Ms country in I

05-23-2007 11:07:45




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The frontloader is lossing lift on a MF175. The fluid level is good. Where do I start to check this out? There are no obvious leaks anywhere.




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Ms country in IN

05-24-2007 09:09:16




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 Re: MF175 frontloader hydralic losing height in reply to Ms country in IN, 05-23-2007 11:07:45  
The cylinders are double action. The loader itself is a MF-236. The rod in the main cylinders is 1.5 inches diameter and the OD of the sleeve is 2.9inches. The control valve was mfg by CROSS, USA. The 2 cylinders on the bucket are also double-action and work fine but the large cylinders will only lift about 100 pounds. If the bucket is setting about 3 feet high, and manually loaded with 600-800 pounds of building blocks into the bucket it stays for quite awhile, but it will not raise any higher.

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135 Fan

05-23-2007 15:57:32




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 Re: MF175 frontloader hydralic losing height in reply to Ms country in IN, 05-23-2007 11:07:45  
The internal seals on the lift cylinders probably need replacing. They will cause the boom to creep down and could also cause less lift capacity because fluid is going around them. It will not lose any oil on the outside. Dave



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DavidP, South Wales

05-24-2007 00:49:32




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 Re: MF175 frontloader hydralic losing height in reply to 135 Fan, 05-23-2007 15:57:32  
Hi, Dave is correct as a starting point. Are the cylinders double-acting? If they are D/A you can loose oil and not be aware of it. If they are single-acting the oil that passes may be forced out of the top of the cylinders.
DavidP



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