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Ford 9N, 2N & 8N Discussion Forum
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Re: Saftey valve question

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TheOldHokie

05-14-2013 03:33:02
108.22.206.135



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BigDanT said: (quoted from post at 20:57:28 05/13/13) Reinstalled pump after putting in a new NAA piston and rings, cleaned pump and housing, new gasket set, new CFP. readjusted linkage with Zanes jig and added new 134d oil I noticed the safety valve sitting on the work bench...crap...I thought I would see how it did and go from there...it will lift a 5' grader box just fine. will even hold it there for days, but it can't lift a 6' disc. it tries but just can't do it...so here is my question...can a bad safety valve cause it not to lift a heavy load or is there something else wrong here? Thanks Dan


The simple answer is yes. How heavy is the disc? Connect a pressure gauge to the test port and see if you are getting 1500 PSI. If you are the disc is simply too heavy for the 3pt. If the pressure is less than 1500 PSI you have insufficient pressure - possibly caused by a weak pump and/or a leaking relief valve.

The safety and releif are two separate valves on the NAA and later system.

TOH
This post was edited by TheOldHokie at 03:36:39 05/14/13.

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BigDanT

05-14-2013 04:31:17
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 Re: Saftey valve question in reply to TheOldHokie, 05-14-2013 03:33:02  
TOH...the disc is a little beefy but, my 2N lifts it OK. I will install the new valve and test the pressure, hopefully that will do it. Thanks for the help. Dan



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TheOldHokie

05-14-2013 04:47:15
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 Re: Saftey valve question in reply to BigDanT, 05-14-2013 04:31:17  
Quoting Removed, click Modern View to see

If your 2N lifts the same disc you have a pressure problem - hopefully the relief valve fixes it.

TOH



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