Combines Problem with 99 R72 s

2001 machines have the same problem. All of ours have been replaced. Those bearings have been a problem for ever. I can remember the old R-6 and R-60 having the seperator clutch bearing howl and thought when they went to the new style electic clutch I would never have trouble with it. Wrong.

use sheave n71377402-balanced and updated. there is also a wave washer to install between sheave and outer bearing.balnce caused some of the problems you are encountering. hope this helps.

Are you talking about the PTO shaft coming off the engine or the main shaftIJ

I do not understand which pulley you are talking about. Is it the one that comes off of the engine or is it the one that the seperator cluthes are inside ofIJ

Yes it is the one the sep clutches are in

Had you replaced bearing or bearings in that 1000hrs.IJ Seems that bearing or them bearings need to be replaced within that time to prevent crowling which will work outer race of bearing in housing. The first machines that had that design were the R40-50's. We had a couple '89 machines do just that and found out that bearing with orings on it was placed to inside which is wrong. There was not enough material to support bearing for long periods without working looser and looser in housing. Same affect of bearing starting out loose in housing from plant. We only had a couple machines with bearing in wrong so very little problem. We carried a new sheave on hand for 10 years before sending it back. Never had any problem with R62-72s until a '98 machine had one come loose and none since. I believe it was one of the first ones with the wave washer which was to help eliminate early noise from bearings. I think they must of had clearance to wide on first run and maybe some since. I was wondering what we could do to get bearings to last longer. I figured if the wave washer didn't work I would have housing milled to accept two inside bearings side by side. Just hasn't been enough of a problem to attemp that. On the early R50s we had used the same bearing in both locations and loctited them in with no adverce problem but didn't prove to be necessary for other machines were having no problem. Could be the better balanced ones will last longer. Wouldn't hurt to blow sheave clean when blowing radiator to help keep in balance. Good luck

I hope the bearing didn't take the housing. I have had some very noisy before any sign of damaging housing. You would maybe be a good test pilot for doubling inside bearing and of course shortening spacer between them. Might want to check it out.

They didn't all take the housing as we change most of the bearings before that happens. Where do I find out how to double the inside bearing.

G'Day Dan I would like to know more about your idea of two bearings inside the sep clutches as well!!! we have replaced the bearings in there twice since new! only got 1000 sep hr's!!!! don't like them much when they howl!!!!!! Could you please expand your two bearing idea on here some howIJ thanks Regards Rolf

That good they didn't all take the pulley. I think they would have to be very very noisy before they would take the pulley unless they started out loose in housing which would be a different story. Sorry guys for I have not double inside bearing on any yet. I was getting prepared to do just that if Gleaners wave washer trick didn't work. I would just mill housing out width of another bearing and reduce spacer thickness the same. You would then have twice balls supporting against inner and outer race as you had and that should make quite a difference. I believe it is the inside one that gets noisy and ussually that is the only one we put in. Also if bearing has wobbled out housing it is the inside so that is why I'm leaning toward just the inside. There are many locations that I have found over time that two identical bearing are placed side by side.