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9n lift arm install


 
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Rugaru
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Joined: 06 May 2019
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PostPosted: Mon May 06, 2019 5:04 pm    Post subject: 9n lift arm install Reply to specific post Reply with quote

Forgive me if this has been answered, but I searched and couldn't find anything. ( first indication that I'm probably missing something). Plenty of how to take them off but not so much about getting them back on.
Someone back in time did some welding on this arm and there was no getting the holes for the pin to line up. So I decided to replace it after several attempts at re-aligning the holes. After three days of wrestling, beating, torching, pulling, swearing and finally cutting... I got the lift arm off the shaft. Now, I have no clue as to how the new arm is going to fit onto the rockshaft. Is it supposed to be a slip fit? is it supposed to be heat expanded or pressed on? I cleaned up the shaft splines and lined up the keyed spline... not even close to fitting. I'm working with the stock shaft and an aftermarket arm from here (YT) any suggestions are appreciated.
 
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Den N Ms
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PostPosted: Tue May 07, 2019 5:45 am    Post subject: Re: 9n lift arm install Reply to specific post Reply with quote

Rugaru Measure the shaft OD with dial caliper and the lift arm ID,to see how much it is off.
 
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Jim L WA
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PostPosted: Tue May 07, 2019 7:38 am    Post subject: Re: 9n lift arm install Reply to specific post Reply with quote

Rugaru, I had to replace one lift arm on my 2N. Same thing, someone had welded an extra piece onto it to beef it up. Anyway, mine came right off and the new one slipped right on. What holes are you referring to that need to line up? The lift arms on the N's are held on my a washer and two cap screws.
 
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Rugaru
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PostPosted: Tue May 07, 2019 8:58 am    Post subject: Re: 9n lift arm install Reply to specific post Reply with quote

The holes I was trying to align were at the far end where the leveling box knuckle attaches. They had it bolted thru and I wasn't to confident trying to pick up a bush hog with it.
 
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Rugaru
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PostPosted: Tue May 07, 2019 9:00 am    Post subject: Re: 9n lift arm install Reply to specific post Reply with quote

Makes sense. I'll give it a go.
 
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Hobo,NC
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Location: Sanford,NC

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PostPosted: Wed May 08, 2019 5:46 pm    Post subject: Re: 9n lift arm install Reply to specific post Reply with quote


If all the stars in the universe line up it should slip on EZ...
 
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Rugaru
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PostPosted: Sun May 12, 2019 2:32 pm    Post subject: Re: 9n lift arm install Reply to specific post Reply with quote

Update: after measuring, I spent the next couple days filing the splines and got the arm to fit the shaft.

Upon testing, I can lift lighter loads, but stalls out after lifting a heavy load (5 ft brush hog) about 2 inches. Just the front end, not the whole hog.

Attempt to adjust the quadrant since it only responds at the bottom 2 inches. No difference where I move it. I'LL open up the cover tomorrow to see what is going on inside.

I'm figuring the selector is either disconnected somehow or there's a problem with the pump. I"Ve already replaced the cylinder, naa piston and safety valve last year when I bought it. Not much more in there. 😀

Thanks for the previous advice.
 
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