Gearbox is Kubota Part #K5381-33103. Only has one access panel on top. Can't get the drive shaft out of the housing because the bevel gears are in the way of each other. Any guidance is appreciated.
RCK60b-23bx Gearbox Rebuild
- Thread starter lopinslo2
- Start date
I have the same problem , lots on youtube to fix a gear box with two access ports and nothing on this one. If any one knows how to take the gearbox apart on a rck60b23bx mower deck with only a top access port I would be thankful for any help.
This diagram might help:
I would guess that your problem is the snap ring (150). Pull the seal (160), and you should see it. You may also need to pull the outer bearing (140) before you can pull the shaft (110). Then, the bevel gear will fall into the case.
Hope that helps!
-Paul
I would guess that your problem is the snap ring (150). Pull the seal (160), and you should see it. You may also need to pull the outer bearing (140) before you can pull the shaft (110). Then, the bevel gear will fall into the case.
Hope that helps!
-Paul
No the snap ring and outer bearing was no problem to remove. The problem is removing the shaft (110) in the diagram . That shaft has a bearing on the inside end that has completely failed and falling apart . The inner race has seized on the shaft and there is no way to get at that bearing or pull that shaft. There is no access to the back side of that bearing so I can not drive the shaft out. I can not get at the inner race to cut it of. My options as I see them are to drill the case so I can try and drive the shaft out from the back side of the bearing then tap it and plug it when I am done. If that does not work I may have to take a plasma cuter and cut the shaft and hope I can then get the both parts of the shaft out so i can save my beveled gear and just buy a new shaft. If none of that works it is just under $2000.00 for me to get a new gear box here in Canada for this unit. But thanks for the reply.
xrocketengineer
Well-known member
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Equipment
BX1880, FEL, Grapple, 36 in. Forks, 48in. MMM, Quick Spade, Ripper
Assuming that the shaft 110 is already (or would be) sacrificial, would something like this help?
Vise grip puller
Vise grip puller
Looking at your link for a slide hammer puller. How is this a kit? Never needed a slide hammer and a test light at the same time(or even project).
Oh, wow. Tough situation.
The shaft is probably still usable, with some cleaning up.
Can you tease the bevel gear off the inner end of the shaft?
I was looking at one of those bearings (new) that I have in stock. That bearing has 9 balls in it, and they're "caged" to hold them in place. Dave, when you say the bearing is "falling apart", the picture I get is that the cage is torn up and the balls are moving out of place. If you can knock several balls out of the bearing from the outside of the case, the inner race should be able to slip out of the bearing, still seized to the shaft.
It looks to me like you should be able to pull the shaft with the inner race still seized to it, if you can drive the balls and cage out of that bearing from the outside of the case. Can you get a pin punch onto the bearing balls from the outside of the case? It looks like there's about 1/8" of space between the inner and outer races - enough for a small pin punch.
Good luck, and don't give up yet!
-Paul
PS, lifted this image of the bearing you are dealing with from another recent post:
The shaft is probably still usable, with some cleaning up.
Can you tease the bevel gear off the inner end of the shaft?
I was looking at one of those bearings (new) that I have in stock. That bearing has 9 balls in it, and they're "caged" to hold them in place. Dave, when you say the bearing is "falling apart", the picture I get is that the cage is torn up and the balls are moving out of place. If you can knock several balls out of the bearing from the outside of the case, the inner race should be able to slip out of the bearing, still seized to the shaft.
It looks to me like you should be able to pull the shaft with the inner race still seized to it, if you can drive the balls and cage out of that bearing from the outside of the case. Can you get a pin punch onto the bearing balls from the outside of the case? It looks like there's about 1/8" of space between the inner and outer races - enough for a small pin punch.
Good luck, and don't give up yet!
-Paul
PS, lifted this image of the bearing you are dealing with from another recent post:
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The inner bearing has failed to the point it fell apart and all the balls have been removed. The shaft has the one beveled gear on it with the bearing inner race behind it. The beveled gear will not clear the other beveled gear even though the shaft is now flopping around freely inside the main housing.
Without having it right in front of me, it sounds like you will have to press the crown shaft (170) out before the pinion shaft will clear and come out. Looking at the picture, shaft 110 is the pinion shaft with an overhung gear. When everything is new it looks like removing the seal and snap ring, that whole shaft assembly slides out. You mention the "one bevel gear wont clear the other gear." This tells me you press apart and remove the shaft with the access window first then the pinion shaft (110) assembly slides out
Again, not having the gearbox in front of me, im just going on past experiences.
Corey
Again, not having the gearbox in front of me, im just going on past experiences.
Corey
Well I just got back in from the shop and I won. I had to drill the back of the main case so I could get a brass punch in on the shaft and try and drive it out. That was not working , so I had an extended tip for my plasma cutter and was able to get the tip in behind the beveled gear so I could cut most of the inner race but still it was not moving. Then I came with the plasma cutter in through the port I had drilled and was able to finish cutting the race and drive out the shaft. See it was simple just like the manual said.