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Re: Farmall 400 hydraulics

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Author  [Modern View]

04-03-2013 18:39:13

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The pilot screen and orifice might need to be cleaned in the Hydraulic control block (first component in the valve block) There are often noises, if the screen and orifice are clean, And the hole is the correct diameter (see archives for pilot valve drilling) it should be quieter. It may have air, but it would hesitate on implement lift, and have other symptoms. Jim

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04-04-2013 05:21:24

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 Re: Farmall 400 hydraulics in reply to Janicholson, 04-03-2013 18:39:13  
Jim I did a quick search last night at work but did not come up with much. Can you explain this pilot valve drilling? I may need to try that on my 400 as the pump kinda whines when all three valves are in neutral. Pump does not get hot though.

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04-04-2013 06:20:36

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 Re: Farmall 400 hydraulics in reply to IAtractorKid, 04-04-2013 05:21:24  
Wardner, Pete 23 or Mkirsh may know the answer. I remember it being mentioned about a year ago. Jim

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04-04-2013 08:43:20

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 Re: Farmall 400 hydraulics in reply to Janicholson, 04-04-2013 06:20:36  
Thanks for the credit, Jim, but my F-400 is noisy too, especially when turning if it is cold. It has IH power steering. I have never tried to fix the noise but I'd like to.

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