Big mess with transmission brake - Fordson Major Diesel

By distraction I've run about 50 m with the handbrake engaged, and sudenly I hear a small metalic noise and the tractor has stoped. Some Oil/Smoke came from the gearhouse vent near the Oil filler. Now the tractor is stucked. Nor forward or reverse movement.

What could be the cause? Can I check if something is broken witout split the tractor . How to solve this mess?

Please send me some advice.

At last I managed to have some spare time to work in the tractor.

I opened the selector plate in the left side of the tractor and I also take out the pulley from the right side. With a lot of patient the nut that olds the spring and the brake plates was removed.I then pull the main rod from the front section of the box by the pulley housing and all the plates, spring, auxiliar gear and the second broken rod by the selectors housing.

By this I could start the tractor and move it from the field. I could not use reverse and 3th That probably because of the gear I tooke out or something with the selectors remount??

To sum up I have: two broken pins, a lot of smashed plates (pearhaps re-usable), the gears seems Ok! and of course... No handbreak.

To insert new pins I've to split the tractor and press them in the cast. Can you give me some instructions to do this repair.

My tractor doesn't have disk brakes and I'm thinking to install them if I could get the used parts from a scrapped tractor but as far as I now this brakes do not have handbrake device on the pedals, so probably I will split the tractor and fix the transmission handbrake.

I'll try to put two pictures of the tractor in the pictures gallery. So if you could take a look at it.

Regards

Following Your Suggestion, I take out the selectors side plate and take a look inside.

Unfortunattly the cenario is as follows:

- I found a broken rod of approx. 1/2 " diam. by 2". I think this was the pin that olds the handbrake plates in position not the main axis but the paralel small one.

- One of the plates is stucked between the theets of the gears that moves the handbrake device.that's is the reason why the tractor did not move at all.

- The gears are apparently ok! but I can not solve the problem with the help of bar.

The tractor is in the field with an implement mounted. Do you think that with another tractor puling backwards with a forward gear engaged in the fordson, I could lose the gears from the plate ??(or will I brake something more??).

The field is more or less regular but far from a workshop pavement.

Do you think I can risk split the tractor in the field?

The pin that is broken is pressed in the case or is screwed ?

Can you give some help on the sequence of operations to repair this kind of situation and which kind of tools I need.

You must by fair means or foul get the plates from between the gears. Rocking the tractor will do no further harm. Perhaps a chisel or big bar to drive the plates out. They are relatively soft metal compared with the gears.If you can get these parts out you can carefully drive the tractor to hard ground.

It would be possible to split the tractor in the field if you can get another with a loader to support the rear of the engine as you move this away. The ground would have to be firm and level.You will also need some good strong blocks of wood and jacks to support the gearbox housing. You will be working in this and it needs to be well supported so that it does not fall on you whilst you are wriggling heavy parts around.

Try putting the high/low in neutral and gently towing the tractor from the field. You will also need containers for about 20 gallons of oil. The rear axle and the gearbox are going to have to be drained.

When you are ready to split, post again.
regards
Brian.

Thanks again for your help . I will try first to free the plates by removing the selectors as you suggest.

I'll post you back the results.

Regards
Luís