OC-4 attachments

GaToy · April 28, 2006, 08:18:06 PM

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

Blake Malkamaki · April 28, 2006, 10:55:45 PM

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

GaToy · April 29, 2006, 01:15:05 AM

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.~

John Schwiebert · April 29, 2006, 02:15:02 AM

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.

walter hudson · April 29, 2006, 02:41:07 AM

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.

Blake Malkamaki · April 29, 2006, 03:02:05 AM

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.

GaToy · April 29, 2006, 04:44:39 AM

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.~

walter hudson · April 29, 2006, 09:16:17 PM

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

John Schwiebert · April 29, 2006, 10:15:08 PM

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

John Schwiebert · April 30, 2006, 03:04:10 AM

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.

GaToy · April 30, 2006, 07:04:31 PM

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.~

John Schwiebert · April 30, 2006, 09:55:03 PM

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.

GaToy · April 30, 2006, 11:41:44 PM

Neat! Thanks.

~C.C.~

Jim N · May 01, 2006, 12:09:29 AM

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

Thank you.

walter hudson · May 01, 2006, 01:48:26 AM

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