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Have a '57 or so OC-4 with no no blade, hydraulics, or attachments.  Does anyone have a comprehensive list of what blades and attachments will fit this machine.  Also, are OC-3 and OC-4 attachments interchangeable?  Any information would be appreciated.

From my OC 4 sales lit they made the following attachments.
Loader, dozer, backhoe,winch, post hole auger, post driver( hammer),scraper-scarifer, scarifer ( small ripper) ,side boom, Universal trencher ( similar to a ditch-witch).  For the most part they were made for the OC 4 and the oc 3 would be too small to handel them. Also most are very hard to find!!!!!!!!!!!!

Thanks for the reply and info.  I really appreciate it.  Sorry it took me sooo long to answer.  Yes I would like to get my hands on some of those hard to find attachments and I will keep looking.  I have seen a lot of requests for dozer blade plans/measurements.  Sure would be great if someone could post plans for an Anderson F4 or similar blade and push arms.  Thanks again.

I just recently e-mailed Blake a copy of a brochure for the scraper/scarifier for the '56-'58 OC-4. Maybe he'll put it up soon if he has time. I have noticed that there aren't many OC-4's on this site. I'm going to be on the prowl for some OC-4 literature.

~C.C.~

You guys need to remember when the HG and then the OC-3 were produced the prime sales for these units was as a farm tractor. There were also more of those 2 models made than the OC-4 in any of the 3  versions. Also remember early OC-3 tractors were still painted green to compliment the green wheel tractors the Oliver dealer would have on his lot. When the extra transmission speed and roller were added to the first OC-4 more stability for blades and other attachments were provided. Also remember most of these attachments were built by outside vendors and not the Oliver corporation. Later on that changed somewhat. Questions?

I found out a neat little fact the other day. Most on here have said that you know it's an OC-4 if it has four rollers. Well I got my user's manual the other day and it says that the OC-4 tractor had only three rollers. The loaders (and it doesn't mention dozers but i'm guessing these too) have four rollers. Now this is for the '56-'58 models so i'm not saying anything about the '59's up. I thought that was interesting.

~C.C.~

the three roller track frame is correct for the early models with the fleetline grille and the 4 cyl. engine. basically the only difference between them and an oc3 is the transmission and sheet metal.

also  i have an early 3cyl gas  68 gauge with the second style grille with three roller track frames . does anyone know if the early 3cyl narrow guages only had three rollers ?

Now you guys got me wondering about my machine.
Serial  1TG-444    OC4-42-IND. It has four rollers.

Is it a " Franken-Dozer" ???
    :shock: :shock:

is yours a 4cyl or 3 cyl ? i have been told that all of the 4cyl. models were three roller track frames . there may not a clear cut way to say which oc4 crawlers are 3 or 4 roller .i also have a late oc4 series b that is a wide guage and has 4 rollers , so going by the year or guage may not be conclusive.

It is a 4 cylinder gas Hercules IXB-3.
When I first purchased it, I called for some parts from Zimmerman and they said it was probably late '57 or early '58.

I have often wondered about the blade set up too, since the hydraulics seem to be the same as those with Andersons   but the blade itself  almost appears to be an incredibly good home made deal.
A couple of years ago, I had it at our home show in Saegertown Pa.  and a guy briefly passed by and said it might have been fabricated at local railroad car shop  a few miles south of here .  (Greenville Steel Car)
 Wish I had been able to talk to him longer......

with it being an industrial oc4 ,you would assume it came with a blade or loader. from your picture ,the blade looks taller than anderson's that i have seen .

Well, my operators manual said only the tractor version of the oc-4 had three rollers. If it was originally set up for dozer or loader hook-up it says it will have four. I would think this would be due to the extra lifting or carring weight.

~C.C.~

that is probably true for the early models ,but must not be true for the later model oc4. i have a late oc4 series b 68 gauge that has 4 roller track frames .

Quote from: "walter hudson"that is probably true for the early models ,but must not be true for the later model oc4. i have a late oc4 series b 68 gauge that has 4 roller track frames .

Is that one just a crawler/tractor? If so do you have any pics?

~C.C.~

(//http://www.cletrac.org/media/pictures/fife/fife_OC4_1.jpg)

That couldn't be true. Here is a picture of Jim Fife's '59 OC-4-68-3G.

I think the track frames are longer on the loaders, and perhaps on the dozers as well. I know on my OC-12 they made the track frames longer so the tracks came about even with the front of the radiator. The older tractors had the tracks back further.

Blake

Quote from: "Blake"I think the track frames are longer on the loaders, and perhaps on the dozers as well. I know on my OC-12 they made the track frames longer so the tracks came about even with the front of the radiator. The older tractors had the tracks back further.

Blake

I'm not quite sure I understand what that has to do with what OC-4's come with three rollers compared to the ones that come with four. We were trying to figure out when they stopped offering the three roller tractor set-up. Walter thought it was the second generation OC-4's. But the picture above shows that they were offered on the '59 models also. This is fun. I'm learning a lot.

~C.C.~

O. K. I looked in my parts book for the 4 cylinder models. In Section 23-1 Complete Track Assembly. and I have read it several times and I think I need to make a chart up Both 3 & 4 roller tracks are mentioned. For the 42 inch Industrial model I can find one set of tracks for 3 roller machines and one for 4 roller machines. Also one comment on the picture. That two me would be an OC-4 3 cylinder series A, Series B tractors were the ones made in Charles City after the White take over. Those tractors were improved quite a bit over the series A tractors. Walter, Send me an e-mail sometime.

the 68 gauge that has 4 roller track frames is a late model oc4 3g series b pl [planetary diff.] with the heavy cast iron grille .this is a later model than the oc4  picture in the earlier post. the one i have with that type grille has the 3 roller frame. maybe toward the end of production they all had 4 rollers.

Quote from: "GaToy"

Quote from: "Blake"I think the track frames are longer on the loaders, and perhaps on the dozers as well. I know on my OC-12 they made the track frames longer so the tracks came about even with the front of the radiator. The older tractors had the tracks back further.

Blake

I'm not quite sure I understand what that has to do with what OC-4's come with three rollers compared to the ones that come with four. We were trying to figure out when they stopped offering the three roller tractor set-up. Walter thought it was the second generation OC-4's. But the picture above shows that they were offered on the '59 models also. This is fun. I'm learning a lot.

~C.C.~

Perhaps they started offering the 4 lower track wheel (correct Cletrac term) track frames on the loaders first. Then, later, they offered them on all the OC-4s, even dropping the 3 lower track wheel frames altogether.

This is one of those questions that I would like to ask the expert who designed them - but I can't ask him anymore.

Quote from: "John Schwiebert"That two me would be an OC-4 3 cylinder series A, Series B tractors were the ones made in Charles City after the White take over. Those tractors were improved quite a bit over the series A tractors.

Oh O.K., I was thinking they did like most companies and when they change the body style the change everything else making them totally different from the previous models. And making it a nightmare for the owners who are looking for parts.

~C.C.~

another confusing thing is that there were 3 different series oc4 models.
 oc4 ,oc4-3g or 3d, and oc4 3g or 3d series B .

Oliver is not the only one who did that. When I worked for a dealer I always made the statement the first one off the assembly line is not like the last one off the line. My son has a 4020 John Deere. My cousin farms next door he has one too. One of my old school buddies lives 2 miles away. He has one too. All 3 have different engine blocks and the head will not interchange between 2 of them. They all have different lighing system different hydraulic valves and whole bunch of other stuff. They are all 4020 John Deere's

I think we all missed one thing in particular. That is called "options" There main competitve tractor at that time was the John Deere crawler model 420 through the 440 and then with the Series B OC-4 the 1010 crawler. You have two choices and maybe three for a little bit on how many rollers they had. Toward the end and without me looking at some old literature they had a 5 roller model and I think the MC models started with 3 rollers. Also remember the people that converted them for John Deere were a Cletrac dealer before that. It will be a couple of weeks but I have another source for information.

Quote from: "John Schwiebert"the ones made in Charles City after the White take over.

So does anyone know when White took over or which year they started implimenting the changes?

~C.C.~

The first day I worked for an Oliver Dealer I was at the Columbus Branch. They called us all in that morning and told us that the White Motor Corporation was the owner of The Oliver Corporation. That was in the fall of 1960. Some crawlers were made in Cleveland for a short period of time after that probably to finish orders. In 1962 Production of the OC-4 and OC-9 models was started in Charles City in a brand new building. They remained in production untill sometime in 1964. These are the Chales City built crawlers and are know as the series B models. They even have a Charles City wheel tractor serial number and it is in a different location. On the OC-4 and some OC-9 models there are also changes in the engine as well. In 1964 production for the normal market ceased. However, Crawler  "based power units" were made for a few years after that. Also remember you had accounts such as I-R who used  the tracks and rollers plus frame for air drills such as used in mines road building etc to drill blasting holes. When that production ended I do not know. I do know for one OE power units for them to mount their equipment on were made as late as 1975.

Neat! Thanks.

~C.C.~

I also learned a lot about these crawlers......

Thank you.     :D

i have a picture of my oc4 series b 68gauge with 4 roller track frames on the tractor photo gallery of www.ytmag.com (http://www.ytmag.com) ,if you would like to see it .[/code][/quote][/url]