955 clutch assembly and drive plates

This post has been up for 24 hrs.

There is supposed to be a bronze bushing pressed in there, no there should not be ridge there, I think the bushing seized to the shaft and spun in the housing.
Gary

I had the suction tube break once on mine at the cast flange from tension while the tube was bolted to the bottom of the case. the clutch got hot from no oil suction heated up and stalled the tractor when I was farming with it. had to tear it down resurface the shaft and install new bushings. I left the tube unbolted from the case.

This post has been up for 24 hrs.

I'm not sure what you expect, but do keep in mind that most folks on here as far as I know are just random folks doing it as a hobby - this isn't a paid tech support center where people drop everything to wait on you hand and foot. The subscription money as I understand it goes to the club, magazine, upkeep of the website - I don't think any of the members on here make any money off that subscription.

Rather specific question you have there too, and probably not something most know well enough to give a definitive answer. Most people also have other jobs/responsibilities and may not be on here all the time or even if so not have time to answer. I myself am one of those 66 views.... didn't answer you cause I have nothing to add.

The bushing in housing part # is 5h454 and I removed 4 oil cluchs from these dozers, big job

Hi 56cat,
sorry, I have just returned from taking my dear wife on a much needed holiday for a week.

As stated, there should be 2 bushings in that hub--scan below shows the dimension they should be installed to.
The hub could be machined and sleeved to repair it and the new bushings installed.
There should be 2 adjusting ring locks--item 12--in the scan line drawing at the top right of the page. These are very fragile and should not be overtightened or the stud can strip its thread or break off.
The damage to the toothed segments on the adjusting ring are from someone being a bit rough in how they turned the ring to adjust the clutch--usually occurs when they try to adjust it with the clutch engaged. The toothed segments are for levering the adjuster ring around by.

Scan is from a Service Information booklet for Caterpillar No 955 Traxcavator, Form No32225, dated 5-56.
Any late model D4 6U-7U or 30A should have the needed oil clutch data in it. Sorry, I do not have form no's for the D4 Servicemen's Reference Book.

Rome/KG, any item--especially a tube should be adjusted/bent to remove any tension before fixing in place--items in tension are prone to cracking. High pressure fuel injection lines and hydraulic tubing especially are prone and should be pre-bent to lay in their fixtures without tension or compression.

Hope this helps.
Cheers,
Eddie B.