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Ford 9N, 2N & 8N Discussion Forum
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draft control

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schief

04-06-2005 17:27:11




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Hello all,
Spent a few hours today rock raking on my 8n, and i have a question. I cannot get my 3 pt hitch to drop all the way in position mode, if i switch to draft mode it will fall another 6 inches or so, does anyone know if this is a quadrant adjustment, or something else?




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schief

04-07-2005 06:12:16




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 Re: draft control in reply to schief, 04-06-2005 17:27:11  
Thank you for the help. You were completely right i was looking at the wrong picture, the 8n does not have a fork. I will tackle the lift cover this afternoon. I will let you all know how it goes. Thanks



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schief

04-07-2005 06:11:53




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 Re: draft control in reply to schief, 04-06-2005 17:27:11  
Thank you for the help. You were completely right i was looking at the wrong picture, the 8n does not have a fork. I will tackle the lift cover this afternoon. I will let you all know how it goes. Thanks



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Rob

04-06-2005 19:01:13




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 Re: draft control in reply to schief, 04-06-2005 17:27:11  
My N acted like that until I pulled the lift cover, straightened the control arm, and adjusted the lift per FO-4 paragaphs 151-154. Now the arms go low and do not change position when I shift the selector switch.



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JEb2N

04-07-2005 04:01:16




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 Re: draft control in reply to Rob, 04-06-2005 19:01:13  
I agree. It is most likely a combination of the quadrant not quite being in the right spot, combined with a worn out cam-follower pin, and maybe (if you're not lucky) a touch of a control linkage being slightly bent. Sounds to me like you're in for a top cover pullin'....



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Rob

04-07-2005 04:17:19




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 Re: draft control in reply to JEb2N, 04-07-2005 04:01:16  
The cam follower pin wasn"t worn and the quadrant was right. Seems like the quadrant has a witness mark (in the right place). Now, that control rod was bent 1/2" to 3/4" and I did adjust the constant draft spring to within 1/64". The lift arms are now rock-steady when I shift position control.



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schief

04-07-2005 04:23:36




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 Re: draft control in reply to Rob, 04-07-2005 04:17:19  
How big of a job is pulling the lift cover? It doesn't look too bad by the manual, but spreading the forks in there scares me. I have a tendency of finding a problem and trying to fix it, then making 3 more problems!

Also if i were to order this cam follower pin, which i have heard several people mention, what would it be called? My manual doesn't use that exact term. Perhaps i should have one coming, because surely mine is worn out.

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Rob

04-07-2005 05:45:57




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 Re: draft control in reply to schief, 04-07-2005 04:23:36  
It looks like Fig. FO140 item 71 is the cam follower pin but I"m not sure without a lift-cover to compare. But then I think item 46 is the cam and not the "cover." Anyway, the cam follower pin is the dowel; 5/16"x7/8" old PN 73298-S18, new PN 374072-S (parts list misprinted as PN 374027-S). The old pin was case hardener, the new looks to be a plain ol" pin and not case hardened. I"ve never had to buy one but if I had a worn cam follower pin and no spare I might just drive it out, rotate it 180* to the good spot, drive it back in and get a new pin for next time. Or maybe I"d just make one. Your New Holland dealer should have it under the new PN.

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Jeb2N

04-07-2005 05:17:12




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 Re: draft control in reply to schief, 04-07-2005 04:23:36  
As Scheif said, even though the pumps and controls are similar but they are different. Only the 9N and 2N pumps have the fork that slips over the control valve. If i'm not mistaken, the 8N linkage is rigid and doesn't really "hook" onto anything but rather pushes a little rocker arm. This means that I beleive you can just unbolt the lift cover and lift the whole works straight up without needing to disconnect anything. At the very least, i KNOW you will not have to spread any forks in there.

My advice would be to use an engine hoist or block and tackle and loop it around the lift arms and remove one of the inspection ports and watch the linkages as you slowly raise the lift off of the tractor. This will ensure that you don't accidentally yank something off that may still be connected.

Jeb

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Rob

04-07-2005 05:44:33




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 Re: draft control in reply to Jeb2N, 04-07-2005 05:17:12  
Your posting to me but Scheif has the questions.

Have another cup of coffee.



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Russ SoCal

04-06-2005 21:37:44




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 Re: draft control in reply to Rob, 04-06-2005 19:01:13  
Rob and schief,
Think you got it Rob. Sounds like it may be a bent control arm. schief, ya know SUMPIN is wrong inside there. Pull yer dipstick inspection plate and take a look-see. If ya lose any oil, that's good. Too much fluid makes antilock brakes.
Russ



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schief

04-07-2005 03:56:00




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 Re: draft control in reply to Russ SoCal, 04-06-2005 21:37:44  
Just curious, I Was looking at my shop manual, and it says: working through the inspection plate spread the forks in there ( i am not near the manual or else i would use better terminology) how hard of a job is removing the lift cover? Any idea.



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Rob

04-07-2005 04:29:35




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 Re: draft control in reply to schief, 04-07-2005 03:56:00  
I think you were looking at the wrong paragraphs. The 8N doesn"t have a fork. 9N/2N has a forked control rod.
The lift cover is awkward and is all one guy can hope to manhandle off an on that tractor. I"ve done it where I use two 8" or 12"-2x4 blocks. Lift the backside of the cover and lay a block flat under there. Lift the front and lay a block under there on it"s side. Now you can get behind it (tighten your truss as needed) and heave that bad boy up and off. Reverse the procedure to replace.

PS. After I did that once or twice, I built a hoist so I didn"t have to do that anymore.

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Roughstock

04-06-2005 17:35:32




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 Re: draft control in reply to schief, 04-06-2005 17:27:11  
Go here, I don't think it works like your thinking. I had the same problem and did what this post said and got to work fine.


http://www.ytmag.com/cgi-bin/viewit.cgi?bd=nboard&th=397666



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schief

04-06-2005 18:34:59




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 Re: draft control in reply to Roughstock , 04-06-2005 17:35:32  
I still have questions: How do you adjust the 3 pt hitch so that it will go all the way down in position control? It will fall all the way in draft, but not in position, plus in draft it will not ever lift, even with the hydraulic touch lever all the way up, in transport mode. ( as i was typing this i might have solved my own question, but now i am doubting it, if the quadrant in mis-adjusted, i would not be able to bring the implement to transport mode because i would not be able to move the touch control lever all the way up. But that doesn't explain why i cannot drop implements as far in position control.

Basically i know enough to be dangerous, but not really to be able to fix anything.

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schief

04-06-2005 18:50:33




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 Re: draft control in reply to schief, 04-06-2005 18:34:59  
I just went out to the tractor and tried my theory real quick, unfortunately it didn't work. I was hoping to find that in position control, the last bit of travel of the hydraulic touch lever would produce no action on the lift arms, which would mean to quadrant would be wrong. However my hitch lifts all the way to the last 1/4 inch dammit. Hopefully someone will know something. I would be so excited if it were an adjustment and not somthing busted, i would be surprised though if that were the case. I guess you have to cut a 53 year old piece of equipment slack though.

Who's Zane

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Roughstock

04-06-2005 18:41:48




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 WE BETTER GET ZANE, or somebody better at this!!! in reply to schief, 04-06-2005 18:34:59  
I know just enough to get myself hurt so I dont want to get you hurt. Sounds like something else is going on with your tractor so I'll be curious to see what the other experts say.



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