3 point hitch help

Dave Wave · Aug 11, 2011

Hi,

I have a Ford NAA tractor I am trying to hook a wood chipper too.

The problem I am having is the toplink of the hitch is too short (I got the longest one I could find 33"). As the toplink is short, now the chipper is too close to the tractor and the pto shaft is too short (I already cut it down to the mfg.s minimum length).

Is there some easy way to extend the toplink about 4" or so.

I have about 0 experience with this type of hitch, so I attached the top link to the "u" bracket with three 3/4 inch holes that fit top link pins.

Thanks,

Dave

Absent Minded Farmer · Aug 11, 2011

Can you post any pictures? It sounds like you have it in the right spot. I remember the top link for my 8N was adjustible. The ends were threaded & you turn the tube in the middle to adjust the length. I seem to remember a flat-bar top link that had no adjustment at all, but I thought it was home made. It came with my 501 mower. I would think they might even sell them here on this site. If you need one immediately, try your local Tractor Supply Co. or equivalent.

Mike

Dave Wave · Aug 11, 2011

Here are some pics of the situation:

-Dave

Absent Minded Farmer · Aug 11, 2011

Ok, you do have the adjustable top link I was thinking of. Post your question down in the Ford "N" series board. They're more versed on the ol' N's than I. They should be able to get you an answer pretty quick. My apologies, I wish couldn be of more help. Been 15 years since I had an 8N.

Mike

willie in mn · Aug 11, 2011

Coming from left field here, but maybe it will work. Can't see the whole thing in the pic. Are there some spare mounting holes on the chipper for the lower links & the tower for the top link? Looks like there are spare holes for the lower links, but can't see if any for the top. Moving the lower pins forward would cure the PTO length problem. Then bring the upper link tower forward to match. Might have to make some new holes.
IIRC, seems the upper link pins should be directly above the lower pins. I might be wrong here.
Willie

Jim in michigan · Aug 11, 2011

just make a top link, you can make one out of pipe for your project,just cut it the length you need and drill a hole in each end, we have done that for stationary stuff, its not like you are plowing with it, it just hold the thing to keep it from falling over.oh yeah I almost forgot to give the answer I always get when I ask a question,,buy the tractor manual...LOL good luck

504 · Aug 11, 2011

We need a picture of the chipper, it just doesn t look right. And you can cut the shaft down but you will have to cut both ends. Pictures first please.

Sid · Aug 11, 2011

What few three point implements I have the top point should be foward in line with the bottom two points. I think the problem is in the chipper design.

Anonymous-0 · Aug 12, 2011

Your top link is fine, you need to cut the P.T.O. shaft shorter.Slide it apart and cut the same off both ends.I used a zip blade in my hand held grinder.Carefull as it gets shorter fast.

Keith Molden · Aug 12, 2011

Kinda looks to me like the chipper was made for one of those little compact tractors. Bought a tiller like that once & had to lenghten the lower mounting brackets as well as the top link mounting bracket on the tiller to get the unit away from my rear tires. You may have to do that as well. Don't believe I'd do too much cutting on the PTO shaft till I did all my research in it tho. Just my thoughts, Keith

Tx Jim · Aug 12, 2011

Dave Wave
I think a longer 3pt centerlink will not correct your pto shaft problem. It appears to me that the telescoping shield needs shortened on the drive shaft as well as the drives shaft.

thurlow · Aug 12, 2011

I tend to agree with Keith, especially if the pto shaft is already at the manufacturer's minimum length. I don't think it will work on your tractor without some modifications/extensions to the 3-point hitch on the implement.

Tx Jim · Aug 12, 2011

(quoted from post at 11:42:04 08/12/11) I tend to agree with Keith, especially if the pto shaft is already at the manufacturer's minimum length. I don't think it will work on your tractor without some modifications/extensions to the 3-point hitch on the implement.

Thurlow
If the brackets require extending where the bottom 3pt hitch pins are attached then the Manufacturer doesn't know much about pto shaft or 3pt dimensions because the tractors 3pt & pto in photo appear to be within SAE standards.
The only exception to my statement would be if the attached piece of equipment needs to be tilted more of an angle. This may be true as normally the centerlink hole and bottom attaching pins are usually more in line vertically.

thurlow · Aug 12, 2011

Hey Jim...........you may well be right; I was basing my comment on the picture, which may be distorted and his statement that the pto shaft was cut to the 'minimum' length. If the shaft can't be shortened any more, I'm not sure he can make it work. Not sure why it couldn't be shortened............

Tx Jim · Aug 12, 2011

(quoted from post at 14:17:10 08/12/11) Not sure why it couldn't be shortened............

I'm not sure the pto shaft can't be shortened either because the frt driveshaft on the mid 80's 4WD Chevy trucks is very short.

paul · Aug 13, 2011

Something ain't right. It should be working.

Spend $69 at Harbor Frieght, get a quick hitch to make hooking up most implements easier, and it iwll push all 3pt implements back a few inches, which will take care of your problem.

--->Paul

paul · Aug 13, 2011

Looking at the pics again, something is wrong. The overhead shot, a 3pt needs to have the 3 pins about vertical in line. You got the top link way way back, that is not right. You must have the chipper tilted backwards terribly?

I see 2 straps (red) bolted on for the bottom links - can these 2 straps be bolted on differently in different holes so those bottom pins stick out more?

Moving the top link longer so often actually makes the pto shaft even shorter - it looks to me like your bottom links are too short, and your top link is too long.

As someone said, perhaps your chipper is set up for those small tractors with the short 3pt arms.

I'd really really think you need the bottom arms (on the chipper) to stick out more, making them longer, and then shorten up the top link to make everything level.

What you show now is just all wrong, somehow. Maybe it's shipped in a 'short' mode and someone forgot to set it up right for you?

Can you give us the name & model of the chipper? If it doesn't have feed rollers, it'll be enough work if it's set up right, much less if it's all tilted wrong & you got the 3pt all kitty-wampus bent at wrong angles.

--->Paul

Aaron SEIA · Aug 13, 2011

What we need is a side shot far enough back to see the tractor and chipper in relation to each other. I agree that something isn't right. All 3 points of attachment should be in the same vertical plane perpendicular to the ground.
AaronSEIA

Sid · Aug 13, 2011

After thinking about it some that thing isn't put together right. The third point on top seems to be laying flat. Seems to me bottom legs of the "A" should be connected with the bottom two points.

Dave Wave · Aug 15, 2011

From what I have found the top link attach point on asian implements is set back out of plane with the lower attach points by design. This leads to possible problems when attaching to US tractors.

The solution is an extra-long toplink in this case which must be fabed.

According to the Mfg. the PTO shaft has a minimum length that is based on the interfaced area of the shaft and the HP the shaft is designed to transmit. Too little material (too short) = shaft failure.

-Dave

Tx Jim · Aug 15, 2011

(quoted from post at 11:06:05 08/15/11)
From what I have found the top link attach point on asian implements is set back out of plane with the lower attach points by design. Dave

Dave
Is your wood chipper Asian manufactured???????? If not then "Asian" doesn't enter into your pto problem. If you don't chose to cut pto shaft off any shorter then the only option I see is to lengthen ALL THREE 3pt hitch attaching points on wood chipper to move it back farther from the tractor pto shaft.

Dave Wave · Aug 15, 2011

It was mfg in china. It seems this is a common problem when trying to fit japan/china implements to us tractors. I would assume that china/japan tractor owners have the oposite issue when using US implements.

-Dave

Tx Jim · Aug 15, 2011

Most farm implements sold in the USA meet SAE standards. I still think your only solution is to lengthen all 3 attaching points on your China built machine.

Dave Wave · Aug 17, 2011

The solution was to extend the top link. I cut the top link in half, then inserted a 10" piece of 1" pipe (fits perfect). Set a 4" extension , then drilled the 5/16 bolt holes.

Works perfect now...pto fits, chipper is level.

Thanks for all the help!

-Dave

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