JerryG
Super Member
That may be a lot of your problem. This tractor was to have 13.6/24 on the rear and 8/16 on the front. By putting a smaller tire on the back they are causing the front to wind up and that is forcing the front to drag the rear.
1260 back end chatter
- Thread starter philbuilt
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5030
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- Kubota M9000 HDCC3 M9000 HDC
Jerry:
You are right, his lead/drag ratio is wrong for sure. Wonder if that's why the other owner parted with it...maybe he thought it was an internal problem. I wonder how much visible wear there is on the tires, especially in the crown area??
With 80 hours on the tractor, it obviously came from the dealer mis-matched.....strange /forums/images/graemlins/confused.gif
You are right, his lead/drag ratio is wrong for sure. Wonder if that's why the other owner parted with it...maybe he thought it was an internal problem. I wonder how much visible wear there is on the tires, especially in the crown area??
With 80 hours on the tractor, it obviously came from the dealer mis-matched.....strange /forums/images/graemlins/confused.gif
JerryG
Super Member
If that is all the hours that is on the tractor and it wasn't used for much more than the owner posted, I don't think that anything will be damaged. I would change the tires as soon as possible. The MF 1250 and the MF 1260 had the same gears. Given this you could either put 7-16 on the front or change to 13.6-24 on the back. Changing the front would be the least expensive.
jeepcj7
Platinum Member
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The correct tire match is 7-16 front with 12.4-24 rear or 8-16 front with 13.6-24 rear. Rolling circumfrences are different between these tire so be careful if you intermix. If difference is negligable you might be able to compensate with air pressure. Suggest you contact tire dealer that carries brand of tires on your tractor and have him compare rolling circumferences.
Ok I looked at the tires again here is what they say.
Firestone all traction feild and road 13.6-24 ,next line " on 12" Rim" next line " 12-24 " So I measured the rim and it is 12" from outside to outside. So is the tire 13.6-24 or 12-24? The tractor now has about 170 hrs. I have a lot of fun on this machine and want to take care of it. The original invoice for this tractor dated aug.00 had a price of $1360.00 for these tires above the trctor cost. There is little wear on the back tire and the front. I did notice that the left back tire looks low but, air pressure is equal to the other side 9 lbs. with calcium.
Thanks for the info
Firestone all traction feild and road 13.6-24 ,next line " on 12" Rim" next line " 12-24 " So I measured the rim and it is 12" from outside to outside. So is the tire 13.6-24 or 12-24? The tractor now has about 170 hrs. I have a lot of fun on this machine and want to take care of it. The original invoice for this tractor dated aug.00 had a price of $1360.00 for these tires above the trctor cost. There is little wear on the back tire and the front. I did notice that the left back tire looks low but, air pressure is equal to the other side 9 lbs. with calcium.
Thanks for the info
JerryG
Super Member
As spb1971 said, check you air pressure. It is amazing how much the wrong air pressure can change the way a FWA tractor operates.
5030
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- SE Michigan in the middle of nowhere
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- Kubota M9000 HDCC3 M9000 HDC
He also has CaCl in the tires so he needs to make sure he has an equal amount in each.....I think. I never load tires. If you rupture a loaded tire in a hayfield, the spot where the CaCl winds up will never produce and alfalfa again.
Hi All,
Tractor update, I've adjusted the tire pressures per the book and that seemed to fix the chatter. We just got 8" of heavy snow and I pushed it and pulled it with box grader and no chatter. 2 more hrs. seat time /forums/images/graemlins/smile.gif let it snow /forums/images/graemlins/laugh.gif so thanks for all the help.
Phil
Tractor update, I've adjusted the tire pressures per the book and that seemed to fix the chatter. We just got 8" of heavy snow and I pushed it and pulled it with box grader and no chatter. 2 more hrs. seat time /forums/images/graemlins/smile.gif let it snow /forums/images/graemlins/laugh.gif so thanks for all the help.
Phil
JerryG
Super Member
It's amazing what a little air in the right place will do. If the pressure is off front to back it will also make it harder to shift into and out of 4wd.