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Allis Chalmers Discussion Forum
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7000 clutch valve, HELP

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Bill from TX

05-16-2007 18:37:12




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Have a 7000 and I am not getting full pressure to my pto clutch i just put in a new clutch pack and new sealing rings. When i engage the pto the pressure gauge i have on the side of the clutch valve drops from 220 psi to 150 psi according to the book it should remain between 210 and 230 psi whether it is disengaged or engaged. I have checked my pressure regulator valve and moderator valve and they're ok. What else can i check to find out where it is leaking. The PTO will turn just not at full speed, it is slipping because of the low pressure. any help would be great, Thanks!

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Hurst

05-17-2007 19:46:52




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 Re: 7000 clutch valve, HELP in reply to Bill from TX, 05-16-2007 18:37:12  
Have you check the modulating valves and pressure regulating valves in the valve body. I had a probem with my 7000"s PTO popping out when I would shift the powershift, and I learned that there was a problem with the modualting valve wearing groves in the valve body and sticking. Check on the unofficial allis board. They helped me with mine. There is a guy, I think it was Tbran, who faxed me a lot of stuff and helped me diagnose it and I got lucky that it wasn"t the clutch pack (or atleast not yet). Just wondeirng how bad it was to do the clutch pack? Is this a red belly or black belly?

Hurst

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