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About buck73

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  1. Thanks for that , i can see straight away that the steering pump on my machine is not the same as in the parts book🙁 as the outlets are arranged vertically from the same pump section with an seperate priority valve. I also think it has been plumbed incorrectly as one outlet from my pump bypasses the controlled flow through the priority valve which to my way of thinking defeats the purpose of controlling the flow in the first place as well as throttling flow through to your hydraulic function circuit however im not really sure as to how the pumps and priority / diversion valve worked to
  2. Hi all, I have a hough h80b with a modified priority valve circuit which isnt suited for the task (valve generates excessive heat and boom raise speed slow at 18sec @2500rpm) the valve in question is plumbed off the steering pump which has two outlets , one of which goes directly to the steering control valve while the other outlet passes thru the priority valve and splits into two, one line of which then connects back into the original output line from pump to scv while the other joins into the hydraulic function control valve supply line .the steering pump is a commercial p350 w
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