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D47U Final Drive Removal

D47U Final Drive Removal

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Alexjfrench
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Can someone tell me how to remove what the book calls "bearing cage holder"?  The book says all I need to do is back the spanner nut off (counter clockwise) until it pushes the assembly off.  I backed it off as far as I could with a huge hook spanner and even used a punch and hammer to put as much tension on it as I could but it wouldnt pop off.  Anyone ever had this issue? (FYI the nut in the picture was backed off when I tried to remove the assembly)
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gemdozer
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This big part on the shaft is the holder and I removed maybe 20 off them by using a sledge hammer and loose the shaft nut 2 turne
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Alexjfrench
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Reply to gemdozer:
This big part on the shaft is the holder and I removed maybe 20 off them by using a sledge hammer and loose the shaft nut 2 turne
You used a sledge on what?  The spanner wrench?
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gemdozer
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Reply to Alexjfrench:
You used a sledge on what?  The spanner wrench?
I was hitting the older
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neil
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Reply to gemdozer:
I was hitting the older
I'm amused that Alex's name is French and Hector is Quebecois : ) My understanding is that Hector's saying he taps the bearing holder with the sledge then turning the spanner nut to inch the holder off
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trainzkid88
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Reply to neil:
I'm amused that Alex's name is French and Hector is Quebecois : ) My understanding is that Hector's saying he taps the bearing holder with the sledge then turning the spanner nut to inch the holder off
i would clean all the crap off of it before you go much further. i think what gem dozer means is while applying force to the adjuster nut with the wrench smack the holder with a hammer to shock it loose.

"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"

instead of perfection some times we just have to accept practicality

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Alexjfrench
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Reply to trainzkid88:
i would clean all the crap off of it before you go much further. i think what gem dozer means is while applying force to the adjuster nut with the wrench smack the holder with a hammer to shock it loose.
I have tried beating on the holder with the spanner nut as tight as possible trying to push it off. I guess I will try and put a gear puller on the holder as well. There are actually 2 ears on the holder that I could attach the puller to. Kind of hard to see them in the picture though. Hopefully between the nut and the puller that will apply enough force to get it to pop. This design kind of sucks. Cat should have put threaded holes in the holder to allow a puller to be used.
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gemdozer
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Reply to Alexjfrench:
I have tried beating on the holder with the spanner nut as tight as possible trying to push it off. I guess I will try and put a gear puller on the holder as well. There are actually 2 ears on the holder that I could attach the puller to. Kind of hard to see them in the picture though. Hopefully between the nut and the puller that will apply enough force to get it to pop. This design kind of sucks. Cat should have put threaded holes in the holder to allow a puller to be used.
I just recheck your older picture and the sproket shaft nut has to be loosed more because the 2 pines for lock stop the holder to coming out
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Alexjfrench
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Reply to gemdozer:
I just recheck your older picture and the sproket shaft nut has to be loosed more because the 2 pines for lock stop the holder to coming out
Yeah I tightened it temporarily when I was trying to get my gear puller to fit.  The nut was all the way backed off when I was trying to pull it.  
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JohnAU
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Reply to Alexjfrench:
Yeah I tightened it temporarily when I was trying to get my gear puller to fit.  The nut was all the way backed off when I was trying to pull it.  
Just wondering if you managed to get it off? I am in a similar poition with an old d46u I am dismantling for parts. I was thinking I would follow the instructions in the book and when its as tight as I can get it, I would use heat on the outer around the shaft. Hopefully that will come loose and I will be able to keep using the c spanner to remove it completely.
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Alexjfrench
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Reply to JohnAU:
Just wondering if you managed to get it off? I am in a similar poition with an old d46u I am dismantling for parts. I was thinking I would follow the instructions in the book and when its as tight as I can get it, I would use heat on the outer around the shaft. Hopefully that will come loose and I will be able to keep using the c spanner to remove it completely.
Yes I finally got it off.  After the nut wouldnt push it off I used a 2 jaw gear puller with a screw type pusher.  That also did not work.  I ended up making base plate for the hydraulic puller to attach to that used the puller arms I had.  It ended up taking 15 tons of pressure from the puller as well as whatever pressure the nut was applying.  If those ears wouldnt have been on the bearing holder it would have had to have been cut  off.  
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