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Subject: 8N Hydraulic Lift

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Del Huebner    Posted 10-28-2020 at 15:28:33 [URL] [DELETE]        [Reply] [No Email]  
  • 8N Hydraulic Lift
  • Cannot get my lift adjusted on the 8N. Loosened the 4 bolts on the quadrant but as far as I can move it and the control lever is only half way up the quadrant and the rod is touching the pump base. When the control lever is at the bottom of the quadrant the lift will not go down. Could the problem be in the pump itself? I just had the top cover rebuilt.

    Bruce(VA)    Posted 10-28-2020 at 15:50:38 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N Hydraulic Lift
  • Did you use a jig to adjust the linkage in the top cover?

    Del Huebner    Posted 10-28-2020 at 16:46:14 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N Hydraulic Lift
  • I would imagine the mechanic that does the work has one. He has done several for me with no problems and many over the last 30 or so years. What does the jig do and what does it look like?

    Bruce(VA)    Posted 10-28-2020 at 18:34:15 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N Hydraulic Lift
  • The jig provides a constant reference point for measuring the adjustments. The I&T manual has the measurements, but those measurements to not consider wear. If you set point A 1 inch from point B, you have no fixed reference point for point A or B w/o a jig . Even though you can easily adjust A 1 inch from B, wear in both A and B can alter the operation of the lift.

    If I tell you to set both chairs 1 foot apart in the exact center of the room, you need to know how far apart the walls are.

    https://www.just8ns.com/LG500-Years1939-52-Lift-Jig_p_2850.html

    Dave    Posted 10-30-2020 at 17:09:09 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N Hydraulic Lift
  • Del Huebner.......I'm in the same boat you are. Top cover is rebuilt but I'm leery to mount it. It seems you have to have a jig to get it right. Anyone in Eastern Iowa have one to rent or borrow?

    Kimberly    Posted 10-31-2020 at 09:56:49 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N Hydraulic Lift
  • Found the plans for the jig; more than happy to send them in an email along with the no jig method as well.

    Kimberly    Posted 10-31-2020 at 09:55:09 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N Hydraulic Lift
  • I have a pdf for adjusting the lift without a jig that I can email. I also have the plans for making the Zane's Jig if I can find them. Zane's family made the plans available after his death because they kept getting so many requests.

    Bruce(VA)    Posted 11-01-2020 at 10:19:54 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N Hydraulic Lift
  • I'm sure the Admins would love to have both documents posted here!

    Meanwhile......can you message or email them to me?

    Tnx!

    Kimberly    Posted 11-01-2020 at 12:45:03 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N Hydraulic Lift
  • The plans are now in the public domain since the family made them public; so yes, they should be able to be added here. I don't know about the non jig file but I will send both to the admins and they can see if they can be added.

    Kimberly    Posted 11-01-2020 at 13:45:44 [URL] [DELETE]        [Reply] [Email]  
  • No Jig Lift Adjustment 8N
  • I posted the pdf for lift adjustment without a jig. I have no idea who created that pdf or where I acquired it from. The Admins can examine it and see if it is OK to be posted here. Of course the file is not actually on the forum but they may decide that the link needs to be removed which is OK with me if they do.

    Kimberly    Posted 11-01-2020 at 13:28:23 [URL] [DELETE]        [Reply] [Email]  
  • Zane's Jig for adjusting lift
  • I have added Zane's Jig and instructions (might need some additional info) to the Manual section of the forum. I will add the no-jig procedure and the admins can examine to see if it is OK to be added or needs to be removed due to copyright.

    JMOR    Posted 11-01-2020 at 10:58:11 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N Hydraulic Lift
  • A poster going by handle TINKS01 generated one such procedure back in 2015.

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