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Subject: NAA hydraulic pump(piston type)

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pfr1959    Posted 09-17-2017 at 20:33:36 [URL] [DELETE]        [Reply] [Email]  
  • NAA hydraulic pump(piston type)
  • how difficult is it to rebuild this pump and/or is there anyone who rebuilds them?
    My tractor will not even pick up a box blade unless the temp outside is cool(less than 75 deg) even then after about 20 minutes, it will barely pick it up off the ground and that is with the throttle nearly wide open. Two years ago it would carry a 6ft Multipurpose disc.

    Bruce(OR)    Posted 09-17-2017 at 23:12:20 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA hydraulic pump(piston type)
  • You sure your cylinder is not to blame? Fluid blowing past the seals once warmed up.

    pfr1959    Posted 09-19-2017 at 06:48:15 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA hydraulic pump(piston type)
  • I haven't pressure tested it yet, trying to get the supplies needed to make TOH's pressure test rig. Just wanted to know how difficult or if someone here rebuilds them. Even when tractor is cool, I have to rev motor up to 1000 RPM to pick up boxblade

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