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  1. Forum
  3. Antique Caterpillar Machinery Owners Club
  5. DISCUSSION
  7. Show us your Cat RD4s! For upcoming ACMOC magazine

Show us your Cat RD4s! For upcoming ACMOC magazine

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2 weeks 13 hours ago #260162 by KevinKizer
Show us your Cat RD4s! For upcoming ACMOC magazine was created by KevinKizer
Hello ACMOC friends!
In an upcoming issue of the magazine, we will be doing a story on the history of the Cat RD4 -- and we would love to feature your machines! If you have a Cat RD4 and would like to see it in the magazine, please post your pictures here along with any pertinent information (year/model no./etc.). If you have any questions, send me a message!
Kevin Kizer
ACMOC Editor
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2 weeks 10 hours ago #260164 by Skinner
Replied by Skinner on topic Show us your Cat RD4s! For upcoming ACMOC magazine
  I will start it going. 1936 RD4
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2 weeks 2 hours ago #260167 by LAOL
Replied by LAOL on topic Show us your Cat RD4s! For upcoming ACMOC magazine
Here are our RD4s.

1936 4G238
&
1937 4G6667

As luck would have it there will be videos on them late this month and early next month.
Aaron
2F 1S 4G (x5) 7J (x2) 5T (x2) 6U 7U (x3)
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1 week 6 days ago - 1 week 6 days ago #260173 by rax200
Replied by rax200 on topic Show us your Cat RD4s! For upcoming ACMOC magazine
Hi Hall,
here is mine

RD4 4368
before
 

And after
 

Hi Grantj, if you look at the track frame mine had 2 rollers thet where taken off and capped and the single field changeover fitted as per the parts book.

Regareds
Daryl

1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug
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Last edit: 1 week 6 days ago by rax200. Reason: Add roller txt
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1 week 6 days ago #260175 by GrantJ
Replied by GrantJ on topic Show us your Cat RD4s! For upcoming ACMOC magazine
Why do some of these RD4s have single upper roller? I thought that they changed to single after they started calling them D4. I realize that the history of the timing from RD4 to D4 is a bit foggy, but I thought the double uppers were only on the RDs? There is a lot that I DONT KNOW, so maybe someone can straighten me out. Grant.
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1 week 6 days ago #260176 by LAOL
Replied by LAOL on topic Show us your Cat RD4s! For upcoming ACMOC magazine
We have several early 4G D4s with the double carriers. It wasn't until the last year in 1939 that they switched to a single carrier. I'm also finding it was a popular swap to a single carrier in the middle. The double carriers were actually prone to additional wear in my experience.
2F 1S 4G (x5) 7J (x2) 5T (x2) 6U 7U (x3)
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1 week 6 days ago #260177 by juiceman
Replied by juiceman on topic Show us your Cat RD4s! For upcoming ACMOC magazine
I don’t want to be left out! Great idea. Here is the only RD4 I own, amongst a small fleet of 6U,7U, C,D and E series D4s. It was an auction purchase and really was owned by a little old lady(honest!).
Super clean orchard version. JuiceMan.
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1 week 5 days ago #260196 by wildwylee
Replied by wildwylee on topic Show us your Cat RD4s! For upcoming ACMOC magazine
Here is my 1937 wide gauge RD4 from Saskatchewan, Canada. S/N 4G3883W someone gave it a paint job before I got it but runs and pushes perfectly fine! (Other than an oil leak on the back of the engine that I need to fix) 
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1 week 4 days ago - 1 week 4 days ago #260206 by CrawlerAddict
Replied by CrawlerAddict on topic Show us your Cat RD4s! For upcoming ACMOC magazine
This is my 1937 RD-4 4G3317W she has 20" track pads and a Letourneau blade. I purchased at an auction with no info but it looks to be an older restoration on a machine with almost no wear showing. The pre-,cleaner is missing and the left and right floor plates but I have a parts machine to rob from for those. A seat would be nice.

CrawlerAddict 
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Last edit: 1 week 4 days ago by CrawlerAddict. Reason: Add picture
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1 week 3 days ago #260221 by juiceman
Replied by juiceman on topic Show us your Cat RD4s! For upcoming ACMOC magazine
Looks like add on ice cleats too. Nice. I think I have an extra seat cushion here. JM
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  1. Forum
  3. Antique Caterpillar Machinery Owners Club
  5. DISCUSSION
  7. Show us your Cat RD4s! For upcoming ACMOC magazine
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