four wheel drive

mossnc · Mar 12, 2022

Lost my 4 wheel drive on my MT125, anyone else have this problem?
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Gee Ray · Mar 12, 2022

You need to supply more information. Any noise? What were you doing when it stopped working? Does the shifter move correctly? Do you run in 4 x 4 all the time? The more details the better the answers will be.

mossnc · Mar 12, 2022

i was moving dirt , had the bucket full and was backing up in four wheel drive. Tractor stopped moving and I could hear a slipping sound. turned it off removed the boot annd what looked like a pin and small c clamp were missing. have 257 hours on it. Dealer came out and picked it up. Looks like the threads got stripped. wonder if pin and c clamp were never installed from factory because I never took the boot off, no damage to the boot. Now waiting on parts.

Thanks for replying

mossnc · Mar 12, 2022

here is the pic after I took the boot off

Cycledude · Mar 12, 2022

mossnc said:
i was moving dirt , had the bucket full and was backing up in four wheel drive. Tractor stopped moving and I could hear a slipping sound. turned it off removed the boot annd what looked like a pin and small c clamp were missing. have 257 hours on it. Dealer came out and picked it up. Looks like the threads got stripped. wonder if pin and c clamp were never installed from factory because I never took the boot off, no damage to the boot. Now waiting on parts.

Thanks for replying

Interesting hopefully it will be covered under warranty, seems like it should be fairly easy to fix once they get the proper parts

ROUSTABOUT · Mar 12, 2022

Leave them in 4x4 and things break pretty regular. Brick layer stripped drive shaft on his. We fixed it. He was working close so he drove it back. Called raising sand because it didn't work again, less than an hour afterer he left. Second time he broke axle. But he was loading dirt on a hard surface.

JoelD · Mar 14, 2022

Weird as it didn’t look stripped.?? I get if it pulled off of the splined shaft. But this didn’t look stripped.

dan Press · Jul 23, 2022

mossnc said:
i was moving dirt , had the bucket full and was backing up in four wheel drive. Tractor stopped moving and I could hear a slipping sound. turned it off removed the boot annd what looked like a pin and small c clamp were missing. have 257 hours on it. Dealer came out and picked it up. Looks like the threads got stripped. wonder if pin and c clamp were never installed from factory because I never took the boot off, no damage to the boot. Now waiting on parts.

Thanks for replying

Same with me. Dealer is still trying to figure it out. I notice that both ends of the driveline do not have pins. Thus they can move freely along the input/output shafts. I suspect that's by design, otherwise, input/output shaft bearings would have excess pressure as the front axle flexes.

oosik · Jul 23, 2022

Those who run 4WD all the time are pushing their luck. Reread you owners manual on the use of 4WD.

dan Press · Jul 24, 2022

I have read the operator's manual. Mine only says limit FWD on hard surfaces, like roadways.

TimberFarm · Jul 24, 2022

I haven't even put my 573 in 4wd yet to see if it actually engages. I have put about 1 hr on since I got it.

My two other tractors I don't think I have ever taken them out of 4wd. No issues. I don't run on pavement, but hard dry stone that is like concrete when it hasn't rained for a week or two.

Bocephous · Jul 25, 2022

I engage 4wd when I think I am going to need it, and only on loose surfaces (gravel driveway, dirt trails, field, yard). Otherwise, my R4047H stays in 2wd. Same principle applies to my UTV and my truck.

workinonit · Jul 25, 2022

Just curious if all you guys would run your FWD trucks engaged all the time? Based on what I'm reading sounds like you would. I don't care what any owners manual says, no FWD tractor is designed to run engaged all the time. If you do, you are just a ticking time bomb. AWD is a different stiory. That is designed to run all the time. It's engineered to do so.

ptsg · Jul 25, 2022

I used to drive my old Kubota B7000 in 4x4 all the time, even on hard surfaces. I was 7 years old, could barely reach the pedals and didn't knew any better. A couple years go by and it completely stripped the splines on the U joint. It also popped the roll pin out and pierce a couple funny holes on the shield.

ptsg · Jul 25, 2022

workinonit said:
Just curious if all you guys would run your FWD trucks engaged all the time? Based on what I'm reading sounds like you would. I don't care what any owners manual says, no FWD tractor is designed to run engaged all the time. If you do, you are just a ticking time bomb. AWD is a different stiory. That is designed to run all the time. It's engineered to do so.

Exactly. My truck as that capability and sure it's nice when the road conditions are sketchy. Simply engage it on the go and it's all it takes. It can do AWD, 4x4 center diff locked and 4x4 Low.

5030 · Jul 25, 2022

oosik said:
Those who run 4WD all the time are pushing their luck. Reread you owners manual on the use of 4WD.

it's not 4wd anyway, it's front wheel assist or FWA and if there is no mechanical locker on the front axle, it's really 2wd, one front and one rear. Hard surface can and do include hard packed dirt. Continual operation with the front axle engaged also accelerates tire wear.

5030 · Jul 25, 2022

workinonit said:
Just curious if all you guys would run your FWD trucks engaged all the time? Based on what I'm reading sounds like you would. I don't care what any owners manual says, no FWD tractor is designed to run engaged all the time. If you do, you are just a ticking time bomb. AWD is a different stiory. That is designed to run all the time. It's engineered to do so.

With an AWD vehicle there is a differential coupling in the driveline. Not on a tractor and no' I never run my pickup truck in 4 high unless I need to and 99% of the time my front hubs are in freewheel