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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

OC6 or 420C

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Agman101

05-05-2014 09:28:04
24.91.28.189



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Been bitten by the small crawler bug for awhile now, have to scratch the itch. If you had the choice, an OC6 or 420C? Going to be integral for the farm - spreading, plowing, go up to 3-4 bottom vs 2 3pt now and 12-14'
wheel disk vs 8' now. land is damp, always the last to get out even with 4x4 and adding acreage yearly as well




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Tramway guy

05-10-2014 06:18:02
64.185.154.188



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
OC 6 More power, independent PTO, live hydraulics, and some had 3-pt hitches. Engine and transmission parts same as oliver row-crop 77 engine/ 88 transmission. Crawler-specific parts available through Landis Zimmerman.



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Donald Lehman

05-09-2014 18:49:39
50.49.168.122



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
The 420 would be more comparible to the OC-4. I'd go for the OC-6 personally. Our OC-4 is a nice 2 plow tractor as is the 420. I certainly wouldn't overload a tractor that old with a 3 bottom. The OC-6 should handle a 3 bottom in good fashion.



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Bret4207

05-08-2014 04:43:48
64.19.90.196



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
As was said, Zimmerman is THE source for Ollie parts. The OC6 is a lot more tractor than a 420. But 420 parts are available too, lots of people out there parting them out.



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Agman101

05-07-2014 14:21:44
24.91.28.189



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
Thank you all for your input. I think it goes to show you find reason and will to go where you wanted anyway. How about mechanics? is there a preference? Aside from parts, a big aside I know, is either easier to work on, I do all my own wrenching. The Oliver looks "roomier" wide gauge and all. Also I came across an Oliver ad for the OC's and a fellow was plowing, right side track in the furrow. Is that right? I read in this forum never do that, plays hell with the machine, lots more wear, etc.I need some more education obviously

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Donald Lehman

05-11-2014 07:13:14
50.49.168.122



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 Re: OC6 or 420C in reply to Agman101, 05-07-2014 14:21:44  
I dunno, any plowing we ever did with our OC-4 was in the furrow. Never seemed to do any harm. But then again we never plowed that many acres with the crawler, either.



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DGH

05-07-2014 21:58:22
209.91.107.227



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 Re: OC6 or 420C in reply to Agman101, 05-07-2014 14:21:44  
Parts for an OC 6 can be had from Zimmerman Oliver Cletrac in Ephrata PA. The engine is from an Oliver 77 tractor and the transmission from an Oliver 88 tractor. Landis Zimmerman is very helpful and knows all there is to know about the Oliver crawlers.



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mab570diesel

05-06-2014 21:33:18
76.6.167.164



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 Re: OC6 or 420C in reply to Mark in Monroe, 05-05-2014 09:28:04  
Quoting Removed, click Modern View to seeI thought that was when it was popular lol.



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J. W. S. 4

05-06-2014 19:22:55
209.143.28.52



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
A guy down the road bought an OC-6, why? He needed a live PTO. It also has more forward speed than the John Deere.



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Bernie/MA

05-06-2014 18:31:38
67.142.181.23



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
I pulled 3 16" bottoms with my 420 for years. Also an 8' disk with 4 railroad ties on it for weight, another one crossways dragging to smooth the clods, a grain drill seeding sudan and a roller bringing up the rear. I'm sure the neighbors thought I was a little nuts. This was back in the sixties when tracks for field work was unheard of.



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The tractor vet

05-05-2014 19:57:41
75.24.5.173



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
And O C 6 will pull three bottoms as all it is is a Oliver 77 on tracks . And you best like LOW SPEED plowing . As i did my share of crawler plowing back in the early to mid fifty's . There would be three crawlers in the field at the same time One OC 3 , One OC 6 and one D 4 cat , two bottoms three bottom and five bottoms and no faster then a good walk . And at the cost of and under carriage you can buy LOTS of tires .

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Bret4207

05-05-2014 10:57:02
64.19.90.196



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
A 420 isn't going to pull more than 2-14's in most ground. Actually, you could probably pull 3, but in 1st gear! Sounds more like you want a 350 or 450 ag crawler. Finding an actual ag crawler with a 3pt might be hard, i don't know. PTO is easier to find.
An MC/40/420 is a nice crawler but you aren't going to pull much more than you are now, certainly not in 2nd or 3rd gear. Whatever you get, undercarriage condition is the #1 thing you have to look at. Throw a track in soft ground sometime and you'll know why.

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jdemaris

05-05-2014 10:47:28
70.194.8.129



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
If I wanted a crawler to do some real farming on wetland - I'd want something a bit more modern that I could find parts for. Used to be many wide-track Oliver HGs in my area as little row crop tractors. Not for wet work though. The only crawlers I've seen in wetland farming are John Deere 350 wide-tracks used in black-dirt onion and lettuce farms in various parts of NY. I cannot imagine any Deere 420 with a 113 cubic inch engine pulling 4 bottom plows.

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DGinVT

05-05-2014 10:39:36
75.105.0.52



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 Re: OC6 or 420C in reply to Agman101, 05-05-2014 09:28:04  
you might be better off with the 420C as John Deere parts are around, I believe either thru a dealer or a good salvage yard. You may be able to get a owners manual and shop manual from "Jensales". The OC6 Oliver parts can be difficult to find I don't know of any dealer sources, possibly some salvage yards.



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