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Thread: 1952 Caterpillar D4 clutch issues

  1. #16
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    Some of the older cats could be Retro fitted with oil clutches.We have a 1947 Cat d6-8U fitted with an oil Clutch ,So check it out , and make sure what it is .

  2. #17
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    Quote Originally Posted by Garrie Denny View Post
    sounds like experience talking here ?
    In the early '70's the first cat I was taught to run was a D-8 14A feeding crusher. After that was a D-8 36A. Both w/ stick tranny. The 36A's clutch brake was worn out so at the end of the push you put the Johnson in reverse while holding the foot brake, let it start rolling back and find 5th as the rolling speed caught up w/ the tranny.
    Mike

  3. #18
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    I just had a cloudy picture of Old Magnet chasing down a dozer, I wonder how quick he was over 50 yards back in the day?

  4. #19
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    Magnet can you email the images? I can not pull them up. bdypiercingbyglock@yahoo.com

  5. #20
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    OK, instruction sent. Anybody else not able to pull up the image?

  6. #21
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    Old Magnet
    Can you please send me the Attached Images?
    I can not access it.

  7. #22
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    Did you look at post #12? Instructions still show up there for me.

  8. #23
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    Any body know what serial # on 1953 d47u did cat start useing wet clutch

  9. #24
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    There was a post earlier that said 1953,that cat first started using them.I think Though on D4s , that they were an option .I have a 1953 D4-7u and it is dry clutch.I have a1958 Australian built D4-29A same as a D4-6U .It is the 4th last machine Built , and it is a dry clutch..
    So I would say unless the machine was speced by the owner to have an oil clutch , a standard machine will be dry clutch .

  10. #25
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    Thanks I was looking for the did stick could not find it. It must be a dry clutch

  11. #26
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    Have not got the info Old Magnet has in his Library , Just going on what i see in my tractors . I have a 1947 D6-8U , that has an oil clutch been fitted later in its life ..I am pretty sure oil clutch housing ,has the Direct electric start hole in it . with a cover plate . I think te Dry clutch housings had to be drilled to add a starter motor .
    Last edited by ianoz; 01-11-2017 at 10:04 AM.

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