MFWD and tire wear normal?

[shady1701]

I put close to 75hrs on a new set of 6-14 R1 tires upfront and they seem to be having alot of lug wear no doubt from spinning excessively anyone else have problems?

 

[GreenMtnMan]

Is there a toe adjustment on each tie rod end? You can do a toe adjustment with a tape measure, but I don't know what the specs are on your tractor. Here's a way to check it from my JD manual. With a piece of chalk or other marker mark the center line of each tire at hub height and to the front of the axle. Measure the distance between the marks. Drive machine forward or rearward to rotate the front tires 180 degrees so the marks are now facing to the rear. Measure the distance between the chalk marks again. For my JD MFWD machine the distance between the two measurements should not exceed 3 mm (1/8"). If yours does exceed that maybe that's where your excessive wear is coming from. If you make an adjustment do it on both sides equally to keep your tires tracking straight.

 

[shady1701]

The wear is over the entire lug equaly on both tires it's just roughing up the front of the cleat an awful lot... I've never had a 4wd tractor so i don't know the mileage you get out of tires but seems like it spins the front tires a ton..

 

[GreenMtnMan]

How much pressure do you carry in your front tires? My tractor was delivered with the maximum of 49 lbs in the 25x8.5-14 R4 tires and the tires spun a lot. I reduced the pressure to 30 lbs which works better and still carries a fully loaded bucket without bulging excessively. At 49 lbs the tire footprint was not flat on the ground and I was only getting about half the contact area I should have been getting.

 

[shady1701]

Mine says max 42 PSI but i've lowered both front and rear to 18 LBS..

 

[longway5]

Just speaking from experience from work, the front tires on our 4 wheel drive tractors wear quite a bit. We have a L2850 where the front R1s are completely bald, to the point of being smooth all the way around. What I try to do is limit the four-wheel drive to when I really need it, and to make larger turns, since the tires really wear in the turns

 

[chrisjbell]

My front tires wear a lot faster than the rears. They all have about 450 hours on 'em and the front lugs are almost gone. The rears are in pretty good shape.

I do try to run the tractor in 2WD when I don't need 4WD, especially on paving (concrete, asphalt) but also on packed gravel. I run about 18psi all around (loaded tires). Figure my fronts will have to be replaced at least twice as often (maybe 3x) as the rears.

 

[bgott]

I believe I read that FWA front tires have a 1% to 1.5% lead over the rears. That means that anytime you're in all wheel drive the fronts are slipping.

 

[BB_TX]

I have MFWD and have not noticed any excess wear on the fronts at all. But I only engage the front wheel drive if I need it, mud, soft ground, heavy FEL work, steep slopes. I run 2wd probably 90% of the time. I never run on pavement.

 

[art]

Normal lead from the big tractors is from 1 to 4 percent maximum. Some adjustment can be made by the tire pressure as that is how we eliminate power hop. I delivered a new Kubota with industrials the other day and to have a good print the rears were at 6 psi and the fronts at 15psi. This tractor was set up with a loader and was not going to have any three point hitch equipment on it.