Parts diagram for d4 6u/7u early hydraulic track adjusters needed

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PaulA

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Does anyone have a parts diagram they could post for the early style D4 6u/7u hydraulic track adjusters?

My parts manual only covers the later styles.

thanks

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Mon, Oct 1, 2012 1:25 AM

Old Magnet

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What are you calling early. The Cat hydraulic adjusters didn't come out until 7U 42915. Could be you have an aftermarket version??.

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Mon, Oct 1, 2012 3:59 AM

PaulA

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Reply to Old Magnet:

What are you calling early. The Cat hydraulic adjusters didn't come out until 7U 42915. Could be you have an aftermarket version??.

I have a 6u3022 (maybe an extra digit at the end) parts tractor with hydraulic adjusters. They look like they match up with pictures of the "earlier hydraulic track adjusters" in the D4 Operations and Maintenance Instructions booklet. These have a grease fitting plus a relief valve. It does not look like it has the the ball check valve.

Aftermarket? Maybe, I don't have the experience to tell. It has the two springs in the recoil spring assembly.

I could get a picture in a few days.

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Mon, Oct 1, 2012 4:57 AM

Old Magnet

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Reply to PaulA:

I have a 6u3022 (maybe an extra digit at the end) parts tractor with hydraulic adjusters. They look like they match up with pictures of the "earlier hydraulic track adjusters" in the D4 Operations and Maintenance Instructions booklet. These have a grease fitting plus a relief valve. It does not look like it has the the ball check valve.

Aftermarket? Maybe, I don't have the experience to tell. It has the two springs in the recoil spring assembly.

I could get a picture in a few days.

There were two types of 4-roller hydraulic track adjusters. Both started at 7U42915 in 1959. Your 6U3022 is a 1949 model and probably has been fitted with the late Cat adjusters.

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Mon, Oct 1, 2012 8:26 AM

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