chas4160
New member
I just purchased a 135 diesel american model and differental lock won't engage. Any tips on freeing this . Thanks
Your post is ambiguous. If the pedal moves the stops solid when stationary I suggest you drive slowly then start to make a gentle turn either way, this will allow the diff lock teeth to engauge.
If the pedal is rock solid, it has probably seized due to lack of use. I have had this problem before. I make liberal use of a penetrating oil like wd40 and repeat for 2 or 3 days then try moving the pedal.If it does not move under your weight then get a hammer and pry bar. LIGHTLY hit the pedal, it should move down, if it does then add more penetrating oil and use the pry bar to lift the pedal back to it's uppermost position.Then repeat , each time gaining more travel in the pedal. It is slow and patient work , but cheaper than pulling the tractor apart.
BUT if the pedal won't shift ,don't force it, add more penetrating oil and try in a couple more days when the penetrating oil has had time to work.
Worst case, it will be a mechanic job.
I must say My MF135 Locker is pretty smooth engaging, I feel nothing but both tires start to move together.. So I would assume that you are left spinning one wheel at times even with the locker pedal depressed?