Qa42a ?

cmatthew · #1 12-31-2010, 10:22 AM

havin some trouble. i pulled both snap rings off on the outside of the shaft and on the inside holding the gear on. and for some reason i can not get that shaft pulled out. it moves back and forth a little. what am i missing?

ol'George · #2 12-31-2010, 10:44 AM

Quote:

Originally Posted by cmatthew

havin some trouble. i pulled both snap rings off on the outside of the shaft and on the inside holding the gear on. and for some reason i can not get that shaft pulled out. it moves back and forth a little. what am i missing?

I assume you are talking about the gearbox?
If so, the shafts are a tight fit in the bearings and the bearings are a snug fit in the housing.
The shaft can be pushed out from the inside, the gear will remain in the housing till it is clear of the shaft.
Pay attention that the key is not pushed on, just the shaft.

cmatthew · #3 12-31-2010, 12:35 PM

thanks george. ill keep tryin. i just cant figure it out. it moves back and forth a little and i even tapped on it from the inside with a small hammer and nothin happened. something somewhere has to be hung up right? it moves about an 1/8'' real easy in both directions.

ol'George · #4 12-31-2010, 03:17 PM

Quote:

Originally Posted by cmatthew

thanks george. ill keep tryin. i just cant figure it out. it moves back and forth a little and i even tapped on it from the inside with a small hammer and nothin happened. something somewhere has to be hung up right? it moves about an 1/8'' real easy in both directions.

ok, after removing the inter snap ring, the shaft is free to slide through the gear then the inner ball bearing , on it’s way out of the housing
(The inner bearing can only be removed from the inside as it sits in a counter bore in the housing.)

As the shaft continues to slide through the inter bearing, it can come out with the outer bearing from the housing, or it can slide through the outer bearing, depending on the tightness on the shaft or the tightness of the outer bearing in the housing.

You are experiencing a tight fit on the shaft to inner bearing as well as the tight fit in the outer bearing. They are not usually a easy fit, but more like an interference fit.

A small arbor press works well, and is preferred but a large hammer & punch will do the job.
(32-48 OZ.) hammer
Support the housing carefully and make sure there is clearance for the outer bearing to come out with the shaft if it chooses to do so.
There will be a lip seal between the inter bearing and outer bearing.
Clear as mud?

cmatthew · #5 12-31-2010, 03:34 PM

thanks again george. sounds like a plan. i will let you know how this pans out for me.

cmatthew · #6 01-01-2011, 02:19 PM

got it out last nite. when the bearing blew on the outside it ran for awhile and pulled the shaft at an angle and grooved the shaft by the inner bearing. that groove wouldnt allow it to be pushed out. got it out and sanded those grooves out and replaced the bearings. so its all good so far.

ol'George · #7 01-01-2011, 02:53 PM

I'm glad you got it apart!
I hope you replaced the seal, as it sounds like it took a beating when the bearing went south.
If you didn't,
I'd pack the box full of grease instead of EP 90 as the new sealed bearing will keep it in better than if you use EP.

cmatthew · #8 01-03-2011, 10:44 AM

it had grease in it before. i cleaned her out and packed it full of grease. the seal didnt stand much of a chance on coming out of there in one piece.