MF 20 / 135 Differential Lock question.

My question is about the differential lock.
It has the small pedal on the right side, which is connected to a pipe that runs from the differential housing to the hub or brake housing inside the rear wheel.

The pedal doesn"t seem to do anything when pressed. The pedal goes down very easy and seems like it might not be connected properly.

I am wondering how to check if the pedal is actually doing anything to lock the differential.

I"ve read that the 2 problems people have with these is the gears get stripped from improper use and the lever gets stuck.

I just don"t know how to check it or how much pressure it should take to push the pedal.

I"d appreciate any advice anyone could offer on this problem.

Thanks,
Mike

The differential lock seems to help with not letting one tire spin. And, occasionally after using it, it seemed to be locked in where it is hard to steer.

When I need to use it, do I just step on the pedal once and it is activated, or do I need to keep my foot on it to keep it activated?

I definitely noticed a difference when trying to scoop up some dirt. When I wasn't using the lock, I would get to a certain point and a tire would start spinning. With the lock, it seems more likely the tractor will bog down since it is not able to turn the wheels.

Thanks for all the replies to my original query. It has been helpful.

Mike

Cost me over $1,000 to get fixed.

I've replaced the ring gear and pinion in a 640 ford 2 years ago. So I've got a bit of experience with what is probably inside the housing.

I should probably look for a good manual with parts diagram.

Thanks for any further help anyone could offer.

But if I recall correctly, they had the tractor split and had the right axle housing off.

Cost me over $1,000 to get fixed.