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Re: NAA Hydraulic Check Valve Seat

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Author  [Modern View]

01-04-2013 06:57:32

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Probably a waste of time, but you may try seating the ball into the seat with a hammer and brass drift IF you are certain that you have replaced the old one with the correct sized ball. I always use a different ball to seat the seat than the one that I plan to install.

Are you CERTAIN that the lift piston is not leaking?


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01-04-2013 07:07:48

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 Re: NAA Hydraulic Check Valve Seat in reply to Dean, 01-04-2013 06:57:32  
I am certain the lift piston is not leaking. I replaced all the orings, gaskets, and follower pin last weekend. I took out all the plugs and sprayed all passages and small holes with brake cleaner. I made all adjustments according to the I&T manual. I even had a friend machine a Nuway tool gauge for setting the lift. All works great.

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01-04-2013 07:42:19

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 Re: NAA Hydraulic Check Valve Seat in reply to cac63, 01-04-2013 07:07:48  
Quoting Removed, click Modern View to see4 potential leak spots for situation that you describe & you seem certain to have eliminated at least the ram lift cylinder. Other 3 are check valve, ram cylinder safety valve, and control valve.

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