[AT] Farmall M transmission locked up

[Mike Sloane]

This is actually a pretty normal situation. What happens is that the end 
of the shift lever gets worn and permits it to slip between two of the 
shift "forks". what you need to do is remove the three bolts holding the 
shifter in place on top of the transmission. It comes straight out. Then 
you need to use a large screwdriver or small crow bar to force the three 
forks to be lined up in a row (that is the neutral position). then you 
just stick the shifter back in and bolt it up. '

The problem is that you need to restore the proper profile to the end of 
the shifter -  a flat taper that is wider at the bottom than the top. 
Unless you have another tractor's good shifter for a pattern, it is hard 
to guess at the shape. So what I have done in a similar situation is to 
use the welder to build up the end some and then test fit the shifter. I 
use a bench grinder to remove and shape any excess material. It is only 
the very end of the taper that gets worn, so you don't need a lot of 
material. Unfortunately, the new material won't be all that hard (unless 
you heat it up with a torch and quench it in oil), so it will wear down 
again.

Mike

Bill Boyd wrote:
> I posted this on the Farmall board but it hasn't come thru yet.
> So I will try here.
> 
> 
> 
> My neighbor has gotten their Farmall M transmission locked up.
> Any hints or tricks to fixing it?
> I haven't looked at it yet. Probably will tomorrow.
> Thanks for any help.
> 
> BillinNETX 
> 
>