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Author Topic: OC-4 tracks?  (Read 9062 times)
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GerryL
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« on: November 07, 2011, 08:12:17 PM »

Hi guys-
My brother dropped off an OC-4 for me to play with.  We're trying to figure out these tracks; the grouser or pad is offset from the chain, meaning not centered on it.  I've never seen a set like this, but then again I haven't looked that closely. There is only 1/2 to 5/8" clearance between the track and some frame parts. 


Is this an original track or did someone cut them down?  They are pretty well worn, and I'm watching for a better set.  I found an 8" wide set from an OC-3 that I think will work.  In the past I've seen 10" and 12" from an air track drill but they are too wide unless the track frame and sprockets are spaced out.
-Gerry
 
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oliverchris
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« Reply #1 on: November 07, 2011, 08:49:21 PM »

My guess is that these were cut down to better fit your machine. Probably used up ten cut-off discs doing it  Wink
Offset tracks were not factory output, I am quite sure.
The grousers have been built-up too.

The 8 in. set from that OC3 will work, but you'll need a few extra pads.
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Specialising in Oliver & Cletrac Crawlers & Parts for HG's, OC-3's & OC-4's from the 30's to the 60's. OC-6 and others from time
1945 Cletrac HG42 + electric snowblade
1952 OC-3-31 sidewalk plow, OC-3-42 + Ware 3-WI (several)
OC-3-42 Heller Universal Trencher
1957 Oliver Super 55, 1958 Oliver 550's Gas/Diesel, 1970's Oliver 1255 FWA
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OC-4 4 cyl. Anderson Dozer, OC-4 Series B 6-way Dozer, OC-46 Series B Loaders
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John Schwiebert
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« Reply #2 on: November 07, 2011, 09:20:58 PM »

Chris: there were some OC-4 tractors built with just 3 lower rollers like an OC-3
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John Schwiebert
GerryL
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« Reply #3 on: November 07, 2011, 09:55:16 PM »

Here's a photo.  32 pads I think; does that sound right?

« Last Edit: November 07, 2011, 10:09:32 PM by GerryL » Logged
hotratz
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« Reply #4 on: November 08, 2011, 09:18:36 AM »

Yes, "normally" 32 pads on an OC-4  30 on an OC-3
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oliverchris
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« Reply #5 on: November 08, 2011, 10:14:31 AM »

Tell us more, John.
I actually have an OC4 with OC3 track frames and therefore just three rollers per side, but I just assumed some cheap #@! swapped out the proper tracks frames for spares from an OC3. Everything else is pure OC4.
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Specialising in Oliver & Cletrac Crawlers & Parts for HG's, OC-3's & OC-4's from the 30's to the 60's. OC-6 and others from time
1945 Cletrac HG42 + electric snowblade
1952 OC-3-31 sidewalk plow, OC-3-42 + Ware 3-WI (several)
OC-3-42 Heller Universal Trencher
1957 Oliver Super 55, 1958 Oliver 550's Gas/Diesel, 1970's Oliver 1255 FWA
1969 White 2-44 13LL (loader/backhoe)
OC-4 4 cyl. Anderson Dozer, OC-4 Series B 6-way Dozer, OC-46 Series B Loaders
OC-46-A Experimental Crawler Loader
Blake Malkamaki
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« Reply #6 on: November 08, 2011, 08:17:12 PM »

We have a Cletrac around with one side cut off the tracks. I think it's a model AD. Not sure whether those tracks would be factory or not. I know one of the ADs has B tracks on it, but I don't think it is the one that's cut.
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Doug424
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« Reply #7 on: November 08, 2011, 09:39:42 PM »

I've never seen any Oliver or Cletracs with offset track pads. I have however seen Case crawlers that had them that way from the factory. In reference to the OC-4's with 3 roller track frames, I do have literature that states they had 3 or 4 (optional) rollers per side. That must have been very early production as I have never seen a 3 roller OC-4.
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logdog1200
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« Reply #8 on: November 10, 2011, 01:49:49 PM »

I think I might be able to help. I am in Washington and trying to post an OC 3 for my uncle. it has good tracks and finals with a model S Carco winch. I haven't been able to get anything to post so I thought I'd come ona and see if someone might be able to help or just pass the word along. I am not a computer expert.  If you might be interested please contact me I do have some pictures of it.
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Logdog
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« Reply #9 on: November 16, 2011, 09:38:56 AM »

Here's mine. Happy to know it might be factory issue  Smiley
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Specialising in Oliver & Cletrac Crawlers & Parts for HG's, OC-3's & OC-4's from the 30's to the 60's. OC-6 and others from time
1945 Cletrac HG42 + electric snowblade
1952 OC-3-31 sidewalk plow, OC-3-42 + Ware 3-WI (several)
OC-3-42 Heller Universal Trencher
1957 Oliver Super 55, 1958 Oliver 550's Gas/Diesel, 1970's Oliver 1255 FWA
1969 White 2-44 13LL (loader/backhoe)
OC-4 4 cyl. Anderson Dozer, OC-4 Series B 6-way Dozer, OC-46 Series B Loaders
OC-46-A Experimental Crawler Loader
da-choppa
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« Reply #10 on: December 09, 2011, 08:14:44 AM »

I had photos as well of a OC4 that someone sent me, it too had the 3 rooler rails, and these same offset tracks/pads. I think it was becuse it was a 31 gauge ? unit Really narrow machine

I think I posted on this on one of the forums too at the time.

Wished I bought that machine, looking back..
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