Re: Hydraulic (pwr. steering) problem - will this

Posted by fixitforfree on January 08, 2005 at 06:47:44 from (4.227.120.18):

In Reply to: Re: Hydraulic (pwr. steering) problem - will this posted by Gerald J. on January 07, 2005 at 20:28:17:

I'm assuming without a priority flow valve, all the fluid will be simply flowing through the lift when not using it because it will be less resistance than going through the power steering cyl.- not giving you power steering. When lifting something the fluid would see less resistance through the power steering so you would have pwr. steering only while lifting - not a good scenerio. Is this a correct assumption? Thus a priority flow valve assures an ample amount of fluid flows to the pwr. steering all the time regardless of lift being used or not giving you pwr. steering in all cases? Don't tractors like the 444 with 1 hyd. pump doing both duties have to have a priority flow valve from the factory? If this is so, seems I could just locate a "salvage" priortiy valve off a 444, "T" my line and go with it. Do the priority valves have an adjustment? If not, I assume a setting for the 444 would be fine for the steering cyl on my 364? My 364 has a pressure relief valve in the power steering circuit. So if I "T" the line from the front pump, go through the priority flow valve I need to get, then through the press. relief valve aleady on my tractor, then to the cyl. it seems it would work fine. You agree or am I making this too simple? Bottom line is, in a gear pump, gear thickness, diameter and rpm all determine output (gpm). I know a 444's single pump that does lift and pwr. steering is just like my 364's front pump that only does my lift. So, apparently, since 7.6gpm is good enough for the 444's lift and steering, it should be good enough for my 364. Make suggestions if I am missing something. This seems too simply. It seems IH instead of simply using 1 pump and a priority flow valve on my 364 they opted for an entirely different steering pump just to avoid using a priority flow valve. That seems a little crazy. An extra pump is much more complex in the system than a simple priority valve isn't it?

Follow Ups:

• Re: Hydraulic (pwr. steering) problem - will this Mac 17:20:42 01/08/05 (3)
  • Re: Hydraulic (pwr. steering) problem - will this fixitforfree 06:22:31 01/09/05 (2)
    • Re: Hydraulic (pwr. steering) problem - will this Bernard le mécano 20:04:06 01/09/05 (1)
      • Re: Hydraulic (pwr. steering) problem - will this fixitforfree 05:44:51 01/10/05 (0)

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