JD 4440 range gear B stops driving.

Kollebo

Member
Hello

need some help again with my old 4440 Quad range trans.
i was out today discing in range B gear 3 and everything was fine (as always)
suddenly tractor stops driving and gearbox just grinding.
i thaugt ok gearbox broken.
tryed to move the Range lever but it was stuck.
so i put the gear lever in reverse and tractor backes up perfect.
i try forward again and it runs for about 100meters and then the same thing happens gearbox starts grinding
so i try in range C and gear 1.2.3.4 everyone OK
what do you think has happend???
i suppose the rangegear falls between B and A by some reason.
i can se when this happens that range lever moves a little back thowards A for about 4mm or so


What do you think it could be?
Thanks
C-J from Sweden
 
It sure sounds like the B range gear got dubbed off, it gets used the most, it's on the bottom shaft so it's a big job to repair.
 
hello

but it works for about 100meters if i use the reverse gear first

but then suddenly it starts grinding and the lever moves backwards around 4 mm

can i see the gears from a lid or something so i can see if its worn out?

C-J
 
The reverse thrust may allow it to go into gear a bit more,,and no you can't see much with the cover off,,it's on the bottom shaft...and no it will not hurt to use it using the other gears..
 

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