Need help sizing pittman arm

Matt_in_Michigan · Jul 16, 2009

Here"s the short version. Saved an old IH sickle bar from the recycler. It had been out in the weather for god only knows how longs. Shot it with grease, oiled the teeth, hooked "er up, and ran like a dream. Best $60 bucks I spent yet. ("cept the dinner I took my wife to on our first date if she"s reading this)

Pittman was rotted and broke after a few practice runs. Replaced it with a universal one, can"t seem to find a part number, nor do I want to drive 60 miles to the nearest IH, and the first go was too long. Carefully measured twice, recut it, and too short.

Somebody help me before I deforest the amazon.

Thanks in advance.

Matt

mkirsch · Jul 16, 2009

I think you kinda need to know the model of the mower in order to get the right pitman stick. They're not all the same.

If it was too long, then too short, just get another universal stick and cut it halfway in between. It should be just right.

Dave H (MI) · Jul 16, 2009

If you ever get the chance to do this again you can pretty much ASSUME that the old pitman is not long for this world. Always pull and make a template or at least make some measurements. Re-inventing the thing can be a tedious task.

ScottyHOMeY · Jul 16, 2009

Ive made one up from an old softball bat before, but I had to tape the pieces of the old together to make a template for it.

That failing if you wrote down the too-long and the too-short dimensions then you at least have a starting place. Heaven forbid that a TSC might actually have a mower part, but that's one possible source.

Still a model # would be helpful.

My Model 21 (made for As and Cs) uses a fairly common one, IH part #M22184

1-1/8" front to back x 1-1/2" high x 35-3/4" long

On the cam end, a slot 6-3/4" long centered and cut top-to-bottom and four holes front-to-back starting 1" in from the end and then every 1-1/2" (use the holes on the cam to mark the holes for drilling on the arm)

On the knife end, the large hole drilled in from the end to take the spring on the knife-head clamp, and four holes front-to-back starting at 2" in then every 1-1/4" (best to fit the spring into the large hole and then mark the other four holes for drilling)

If that length and description is about what you had, you could fab one from that or have CaseIH send you one.

HTH

old · Jul 16, 2009

They are easy to make right but not sure I can explain it on here. One thing is having it timed right yep they have to be timed. So you need to do this and hope this makes since to you. Take the bar and move it to the point it is in where it need to be with the sections centered in each guard now spin the pitman drive to the in position and measure how long you need the stick. Then move it to the out position and do that with the drive and measure again. you should get the same measurement if you don't try again. I have done many of them but explaining it here is not easy. Of course you could also send me an e-mail and I'd then send you my phone number so I could explain it better

Janicholson · Jul 16, 2009

I'll add to Olds good content:
Put the bar on the ground as it would be cutting.
Push the sickle in the farthest out position by looking at the wear points on the guides and clips. Rotate the drive until the throw is closest to the ball socket on the sickle (it will not be perfectly level, it will angle down a bit toward the socket). Now measure the components for length. JimN

mhmalcolm · Jul 16, 2009

Here is a link to one. Don"t know if this is the right one, but the length of it is given in the description.
IHC Pitman

ScottyHOMeY · Jul 17, 2009

Okay, Mac, what model tractor do you have it mounted on?

Of the numbers I see on your link, the 16 definitely was made for As and Bs, the 21 was for As and Cs, the 24 was a heavier-duty version of the 21 for a C and probably (not sure) an A.

Couldn't speak to which tractors the other model numbers were made for, but the stick in your link is the M22184 I referred to and is common to all of thos shown. Pick your source, ebay, CaseIH . . . but if price and shipping are less than price, gas and time for a trip to your dealer, drop a call to your CaseIH dealer and have him send it to you in a big brown truck.

Need help sizing pittman arm

Matt_in_Michigan

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mkirsch

Well-known Member

Dave H (MI)

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ScottyHOMeY

Well-known Member

old

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Janicholson

Well-known Member

mhmalcolm

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ScottyHOMeY

Well-known Member

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