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Subject: 2N lift problem

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Al Tomes    Posted 06-15-2020 at 15:39:52 [URL] [DELETE]        [Reply] [Email]  
  • 2N lift problem
  • I recently bought a 2N. Previous owner said lift wouldn't stay up. I replaced the lift cylinder and piston. When just using lower lift arms and a draw bar it has a lot of lifting power and will stay up and not drop down over time. But, when I attach an implement to the top/center link, it wont lift so much as a grader blade. Someone told me it's probably an adjustment but I don't know what to adjust. I thought maybe the draft control yoke but, it's seized (another subject). Any advice?

    JMOR    Posted 06-16-2020 at 09:38:06 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 2N lift problem
  • I would say that the top link is giving an input to the system that commands lower (pulling toward rear on top link). If at this point, you can use a long pry bar to push the top link forward, it will likely lift. This is generally due to wear in metal parts and you may be able to compensate by loosening the 4 bolts in quadrant and sliding quadrant toward rear in the slotted holes.

    Tim Daley(MI)    Posted 06-16-2020 at 04:06:58 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 2N lift problem
  • Did you clean the chambers, install a new safety relief valve, and exhaust control valve? Did you use the OEM style piston with the three steel rings or replace with the NAA-530 piston using the rubber O-Ring and leather wiper? Is the 'wishbone linkage' connected? Can try the leak test first via inspection covers. I doubt you have a blown gasket, but the cylinder has three gaskets - two small round ones and one large oval one. Often fellas miss the two small ones. I suggest you invest in this excellent DIY video -SEE LINK -for more help.

    Tim Daley(MI)

    K.LaRue-VA    Posted 06-15-2020 at 20:08:28 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 2N lift problem
  • Could be a weak pump or leak. Pop a side cover and try to operate the lift with a heavy implement. Look for fluid raining down from above or jetting from somewhere in there. Blown gaskets are an easy fix. If the tube that transfers pressure from the pump to the top cover is bad, that is a bit of a pain to replace. If there are no obvious leaks, the pump may just have too many hours on it to make enough pressure. Might be time to rebuild the pump or swap with a used one parted out from a "working tractor" on ebay.

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