simonds
Bronze Member
1999 JD 4200 hydrostatic. Positive lock differential petal won't lock in completely. I can feel it going in and out while holding the petal down. I don't find any adjustment on it. Any help out there? Thank you.
One side of the diff-lock mechanism is soft cast steel; the other is harder/tougher steel.
So the former wears a lot when rubbing against the latter. If there is enough meat left
on the cast part, then you can shape it with a grinder to make it grab better, as I
did for one of my 4300s.
Otherwise, you are gonna have to buy the whole ring and pinion set. $$$$
Wow, great pics! I'm assuming you're holding a new piece in the
second pic? What did the original one look like?
That IS the original piece. I just reshaped it with a die grinder and an angle grinder.
I mean the smaller piece in your hand in pic 2 (not with the arrow),
it looks like you ground the ring/pinion side.