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212 grader clutch help needed

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8 years 10 months ago #123405 by grayrat
Replied by grayrat on topic On to Capital Clutch
Thanks for the numbers OM. I hit a dead end on them. I'm hoping Capital Clutch can help me out.

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8 years 10 months ago #123409 by Old Magnet
Might check in with General Gear in Idaho. They don't list anything for the 212 but they may have some useful information. They seem to be interested in stocking clutches for the old stuff.

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8 years 10 months ago #123444 by Dandy Dave
Yup. General Gear. www.tractorparts.com/ I was in their yard several years ago while on a trip from NY to California and back. Nice folks. Lot of good stuff out there in the desert. Would like to that again someday. Dandy Dave!

1940 Cat 12 Grader 6M17
1956 Cat D2-5U
1956 Cat D6- 9U 23721
Copake, NY.

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8 years 10 months ago #123492 by ccjersey
I had a 53 model 212 grader that the clutch disk had been replaced on the center hub. The replacement disk had the linings bonded to the steel instead of riveted on. I had ordered a set of linings from CAT before I took it apart but when they wouldn't fit and the old ones were pretty thick, I just cleaned up the teeth in the flywheel and pressure plate and put it back together. I ended up trading the grader off several years later still running (barely) on the aftermarket clutch. I didn't take it apart again, pressure plate could have been stuck again.

That was the first CAT engine that I acquired that had sucked up roll pins etc into the oil pump. The second one was a D333 in a 12E grader that had a sheetmetal lock plate caught in the pump gears. In both engines there were still roll pins left (not sucked up yet) in the suction bell of the oil pump when I took it apart. Obviously, oil pumps do not fare well having ingested a hard steel item and do not deliver much oil thereafter. Amazingly, the D311 was still running with no knocking, just no measurable oil pressure. I was able to clean up the oil pump gears and housing and reassembled it. It made good oil pressure according to the CAT gauge in the cab and is still running today as far as I know.

If you don't have a shop close to you, I have had great service from Automotive friction in Birmingham, Alabama.

D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time:D

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8 years 10 months ago #123493 by STEPHEN
Replied by STEPHEN on topic Check here

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8 years 10 months ago #123497 by Kelly
Replied by Kelly on topic Or here!

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8 years 9 months ago #123949 by grayrat
Replied by grayrat on topic clutch update
I have exhausted my search for all 3 PN on the clutch plate and had Capital clutch in Sacramento build me one and turn the flywheel. THEY DID A GREAT JOB. They fabricated a new clutch disk and turned the flywheel in one day. Now I am getting set up to reinstall the engine in the grader next week end. Thanks for all the good advice.

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8 years 9 months ago #123952 by Old Magnet
Great progress!!! Would you mind sharing the cost information on those services. What did you do about the levers?

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8 years 9 months ago #123976 by janmeermans
Replied by janmeermans on topic May I tag along?
grayrat, OM and all,

Since we are already into Cat 212s and 112s, I need some information on a Cat 112 3U-1000. I'm told the ring gear and pinion on the pony are both messed up from somebody not knowing what they were doing trying to start it. I've looked at the sections OM posted but am unsure of how the ring gear is made up to the flywheel. If the engine is removed, what is needed to replace the ring gear? Let's assume for discussion purposes that the clutch assembly is in a working state and only the ring gear/pinion is the problem.

Depending on the answer here, I will come back with more particulars on this machine. There have been some very interesting things offered prior to this post. Thanks everyone.

Jan

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8 years 9 months ago #123978 by josh
Replied by josh on topic 212 grader clutch help needed
The ring gear is bolted on to the flywheel, the same ring gear is used on the D4, U, some of the J series, etc, the pinion same as D2, D4.

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