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Pinion shaft bearing 933f
1 year 1 month ago #245827
by Arkie
Pinion shaft bearing 933f was created by Arkie
I'm close to reinstalling the pinion gear assembly in my 933f. At some point I'll need to press the left bearing on with the shaft,hub, and gear assembled and back in the machine. The manual shows it being pressed with a specific caterpillar press that I don't have access to. I'm hoping has crossed this bridge and can offer input on doing it without that press. The shaft has the right bearing pressed on and is in the freezer now. Thanks for any insight.
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1 year 1 month ago #245829
by neil
Cheers,
Neil
Pittsford, NY
Replied by neil on topic Pinion shaft bearing 933f
I'm not familiar with that specific scenario but for my D2, there are various special Cat tools required for pressing that I don't have, so I had my machinist make up various adaptors etc. for a generic hollow ram that I can push and pull with up to 20 tons (they make them larger as well). That could be an option for you. For you left bearing, you could take a shot at putting in in hot oil up to 250 degrees and then quickly getting it on the shaft, but you do run the risk of it not making it all the way. Then you would need sometihng for sure
Cheers,
Neil
Pittsford, NY
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1 year 1 month ago #245830
by Arkie
Replied by Arkie on topic Pinion shaft bearing 933f
Yep. I'd thought of heating the bearing too. It took hours to pull the old one off using a torch and a port-a-power. Hadn't thought of a hollow ram. The only thing I can think to push the bearing with the port-a-power is the axle nut that holds the clutch pack. I'm not sure it will handle being subjected to the pressure it'll take to press the bearing though. Neil, thank you for responding!
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1 year 1 month ago - 1 year 1 month ago #245837
by trainzkid88
Replied by trainzkid88 on topic Pinion shaft bearing 933f
if you go the heat in oil trick you want to shrink the shaft in the freezer first or even a bucket of iced water. this give more work time. there is also shrinking with liquid nitrogen.
the idea of shrinking the shaft too is you get a extra few thou clearance and that can make all the difference between slides into place or having to drive it.
the idea of shrinking the shaft too is you get a extra few thou clearance and that can make all the difference between slides into place or having to drive it.
Last edit: 1 year 1 month ago by trainzkid88.
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1 year 1 month ago #245839
by Fat Dan
ACMOC Member
955E 12A08263; 955C 12A04040; 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Bullgrader
Replied by Fat Dan on topic Pinion shaft bearing 933f
I have the luck to have a tool & equipment rental store in the next town. I have rented other tools and equipment from them over the years. It would be worth a call around to see if they have one.
ACMOC Member
955E 12A08263; 955C 12A04040; 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Bullgrader
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1 year 1 month ago #245843
by neil
Cheers,
Neil
Pittsford, NY
Replied by neil on topic Pinion shaft bearing 933f
If you heat the bearing, the nut will hold it. I got a thicker nut just for this purpose that engaged with more threads and I had no problem pushing my bearings on. I think with one of them I actually just tapped it on with hammer and punch after "seeing how far it went on"
Cheers,
Neil
Pittsford, NY
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1 year 1 month ago #245852
by Arkie
Replied by Arkie on topic Pinion shaft bearing 933f
I'm to point of not worrying how big the bear is , I just need to tackle it!
This bearing was a nightmare to pull and hopefully this old machine will show some kindness and let me put it back together. Thanks to everyone who have taken the time to respond!
Arkie
This bearing was a nightmare to pull and hopefully this old machine will show some kindness and let me put it back together. Thanks to everyone who have taken the time to respond!
Arkie
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