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Allis Chalmers Discussion Forum
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help please

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Robert v

10-08-2007 17:18:00




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My 1959 D17 has 1800 lbs of pressure my IT manual says it should have atleast 3300 lbs.It say if not shim the valve in the pump to get in where it needs to be .I need to know where to get shims and do i take away shims or add them . This is on my hydraulic system .




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El Toro

10-08-2007 19:12:07




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 Re: help please in reply to Robert v, 10-08-2007 17:18:00  
Why do they need so much hydraulic pressure? Hal



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Robert v

10-09-2007 04:42:34




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 Re: help please in reply to El Toro, 10-08-2007 19:12:07  
It wont pick up my bales of hay so I was told to check pressure.



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El Toro

10-09-2007 05:17:40




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 Re: help please in reply to Robert v, 10-09-2007 04:42:34  
Thanks for the info. I would keep good hydraulic hoses on there. You may want to consider double
steel braided hoses. Hal



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Bob

10-08-2007 19:25:38




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 Re: help please in reply to El Toro, 10-08-2007 19:12:07  
They were a high-pressure, low-volume system.

They used SMALL (diameter) cylinders, so they needed PRESSURE to get the job done.



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JimD

10-09-2007 11:05:38




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 Re: help please in reply to Bob, 10-08-2007 19:25:38  
El Toro,
The old AC's all used Low Volume, high Pressure systems



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