I changed a broken axle on a S 185 Friday that snapped clean at the outter bearing , I told the guy that I think it will happen again as he is runing solid tires , 2 " track spacers and a heavy set of steel trcks with rubber pads , I think it is too much for the axle , hows about some thoughts
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skidsteer.ca
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With solid tires if you get a stone or something inside the track the tire canot compress to make room for the object and the track can't stretch, so the potential for extreme stress is high.
The spacers also add to the lever effect on the axel.
It's possible it may have been a poor axel, but more likely is that he has found the limit of its strength.
How many hours has he run this combination? Does he remember forcing any objects between the track and tire.
I run foam filled on the 773 with steel tracks, the track mfg does not recommend that, and those tires still have some give.
I have no spacers and have to had any trouble in the 500 hours I have had the 773g
My recommendation would be to try foam filled tires
Ken
The spacers also add to the lever effect on the axel.
It's possible it may have been a poor axel, but more likely is that he has found the limit of its strength.
How many hours has he run this combination? Does he remember forcing any objects between the track and tire.
I run foam filled on the 773 with steel tracks, the track mfg does not recommend that, and those tires still have some give.
I have no spacers and have to had any trouble in the 500 hours I have had the 773g
My recommendation would be to try foam filled tires
Ken
My main concern with tracks, would be the increased load on the drive chains???? When I got my S185, I saw a set of rubber tracks the dealer had......guess they would have some stretch factor IF a rock got between the tyre and track?
skidsteer.ca
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Air filled tires can compress for a foreign object and a rubber track would likely stretch some.
I had a Bobcat tech tell me not to run my steel tracks tight as the drive chains could be overloaded and break. Its better if the tires spin some inside the track.
With rubber tracks its common practice to remove the front drive chains because of to much grip between the tire and the track.
Ken
charger
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solid tires are a big no! no! with steel tracks, we had lots of problems 2 or 3 years ago when one of our roughneck customers did this, no flex and the extra weight of the tires cause axles to fail, on a new holland the axle is only welded in 4 spots to act as a key shear if something like that would happen they shear off!
this is a pretty old thread, but IMO< foam filled would be about as bad as solid rubber, as they do not compress that well if at all, pending foam type and fill,
and that is where the issue comes in , when there is something that gets in between tire track and then there is no GIVE In things and you over stress things!
a lot also might come down to how TIGHT the tracks are too, as well as how much traction /weight is on the tracks at the same time
and that is where the issue comes in , when there is something that gets in between tire track and then there is no GIVE In things and you over stress things!
a lot also might come down to how TIGHT the tracks are too, as well as how much traction /weight is on the tracks at the same time
I have foam filled tires with tracks on S-250. Been running them about 1000 hrs . When I have tracks on Im careful about keeping straight lines , multi point turns and going slow. I have no doubt if you put an operator in there doing 180's in in big rocks and stumps and logs or running at wide open it wouldn't take long to break something. With the extra weight of tracks and tires it has some serious digging and pushing power and traction at 1800 rpm with very little push on sticks. It wieghs around 9000 lbs rides like a dozer and is a brush clearing monster.
