Mule Drawn? or Tractor? Old Pull BIG Cat Grader

Tractor pulled. I don't have my serial number lists at work but this was NEVER designed to be pulled by anything other than a Cat. The big graders are typically priced against the value of scrap metal at the time. They are a great unit and are capable of doing lots of work if you have an operator on both the tractor and the grader that know what they are doing.

if my info is correct the 4A series is a Caterpillar Model 44 pull grader,
based on your serial # it is a hand control, single frame, wt 7100 lbs.

i think they made 1663 of them then upgraded to a double frame adding 90 lbs. to the weight starting with serial # 4A1664

Some one else here may be able to give more accurate info.

http://www.chriscomachinery.com/PullGraders.htm

The grader in the pic the msrudecat posted is a earlier double frame 44.
here is a pic of my later single frame.
Price wise i essentially gave $1500 for mine. Had to horse trade a 9ft 3-point angle blade to get it- its the only way he'd let go of the grader.

msrudecat: Your machine, 4A1651, is a "No. 44 Grader - Hand Controlled". It was manufactured in 1936, the last built of this series was 4A1925. The No. 44 frame upgrade started in 1937 with 8H serial number series.

I no nothing on your grader but would love to see a pic of the Generator Power Plant if you could one day thanks.

OK...from the meeting of the minds here, what I think I have is a 1936 4A maybe double frame? That part I was confused about. And the serial number technicality. Does anyone think it was for the Work Program by the government or a private individual in 1936? Scrap price during the depression..... I searched many a farms out here in rural Oklahoma where they couldn't remember whether they scraped it in WWI or II. Ok. I can't figure that one out either! Does anyone have a brochure??
Also, here is the requested cat power plant picture....haven't even tried to figure it out, except a serial # 7P3231. Thanks for your interest in helping on that!

it is my understanding that if the grader is made up of an open channel steel, then it is considered a single frame.
But if it is made up of closed channel steel or "box frame" then it is considered a double frame.
I may be wrong on this....

Hi, Chriscokid.
My understanding of the single-double frame story is different from yours. If you have another look at Msrudecat's photo, you can see that that grader has a frame rail coming from each side at the rear toward the front. These rails never actually meet but end on either side of a column at the front. The bottom end of the column carries the front axle mount. As I understand it, this is a double frame arrangement.

On single frame graders, the two frame members merge near the back of the machine to form a single beam, usually a box section, which then goes all the way to the front. In some cases, the single frame member may begin at a heavy cross member at the rear and just be a single beam from back to front, as in the Adams drawn grader in this photo.

Hope this helps.

OK...from the meeting of the minds here, what I think I have is a 1936 4A maybe double frame? That part I was confused about. And the serial number technicality. Does anyone think it was for the Work Program by the government or a private individual in 1936? Scrap price during the depression..... I searched many a farms out here in rural Oklahoma where they couldn't remember whether they scraped it in WWI or II. Ok. I can't figure that one out either! Does anyone have a brochure??
Also, here is the requested cat power plant picture....haven't even tried to figure it out, except a serial # 7P3231. Thanks for your interest in helping on that!