After trying to pull a stuck vehicle out of mud heard a clunk and rear right wheel no longer engages (three wheel drive now). Rear axle, transmission, death sentence? Any thoughts appreciated.
L2250 Rear Wheel Slipping
- Thread starter hbesett
- Start date
The 'thunk' you describe sounds like what happens when the differential lock disengages---supposed to be automatically---after use---when the load is relieved on the rear axle.
Operator presses down with one heel (which side varies by machine) to 'lock' the differential so both rear wheels pull.
Make certain your differential lock is fully 'up' = disengaged. May be a rod / lever / spring disconnect. Might take a look at a parts schematic online on Kubota website.
To further sort out your problem, do you mean ("no longer engages") one rear wheel is (a) rotating freely not driven by the engine or (b) dragging, locked up?
Please post back your determination so we may all learn.
Operator presses down with one heel (which side varies by machine) to 'lock' the differential so both rear wheels pull.
Make certain your differential lock is fully 'up' = disengaged. May be a rod / lever / spring disconnect. Might take a look at a parts schematic online on Kubota website.
To further sort out your problem, do you mean ("no longer engages") one rear wheel is (a) rotating freely not driven by the engine or (b) dragging, locked up?
Please post back your determination so we may all learn.
Unless you engage the 4WD lever your tractor is one wheel drive. It could be either of the rears and can go from one side to the other in slippery conditions.
If the 4WD lever is engaged you have two wheel drive (one front, one rear).
To get three wheel drive the differential lock has to be engaged. It is a lever near your heel on one side of the floorboard or the other. It is usually on the non-HST pedal side.
When the lock is engaged then both rear wheels will rotate together. Test the lock by lifting the rear end with a floor jack, be out of 4WD, and block the front tires.
With the engine off rotate one tire, the other tire should rotate the opposite way with the lock off. If you can have someone or somehow engage the lock the tires should rotate the same way.
With the engine on and HST engaged without the lock the rears should rotate one at a time. With the lock engaged both should rotate. If not, then something is damaged.
Oh, and you'll never get true 4WD without an auto front locker. It only comes on larger Kubotas starting with the M7040.
If the 4WD lever is engaged you have two wheel drive (one front, one rear).
To get three wheel drive the differential lock has to be engaged. It is a lever near your heel on one side of the floorboard or the other. It is usually on the non-HST pedal side.
When the lock is engaged then both rear wheels will rotate together. Test the lock by lifting the rear end with a floor jack, be out of 4WD, and block the front tires.
With the engine off rotate one tire, the other tire should rotate the opposite way with the lock off. If you can have someone or somehow engage the lock the tires should rotate the same way.
With the engine on and HST engaged without the lock the rears should rotate one at a time. With the lock engaged both should rotate. If not, then something is damaged.
Oh, and you'll never get true 4WD without an auto front locker. It only comes on larger Kubotas starting with the M7040.
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All he has to do is use the steering brake to lock the left wheel and see if he gets any reaction to the right wheel.
I'll bet his clunk was really a snap.
I'll bet his clunk was really a snap.
Explain.
Power to open dif, one wheel or the other WILL turn........just a fact.
If he believes the right axle is broken.........use left brake.........right MUST turn........FACT.
If right does not turn............broken axle...........fact.
Using as is, but when I need four wheel drive (up hill or wet areas) it is not locked in, even with diff lock pedal down. Tried left brake, right brake- wheels seem engaged. Another symptom- going down steep hills low gears will not hold back tractor- tractor chatters down quickly (I do not recommend trying this). Also, in just rear wheel drive, makes a grinding noise underneath.
Thanks for suggestions. I'm grateful it is still working at all (busy time).
Thanks for suggestions. I'm grateful it is still working at all (busy time).
If either axle is broken, it will not pull at all unless it's in 4wd or the diff lock must be engaged. . If the brakes are on the outside of the broken axle, applying the opposite brake will not make it move.