Trunion Removal
 

So I'll bite.

My trunion bracket is really worn and needs to be welded up. Since I don't weld I need to bring it to someone who does (not a big deal). I can't seem to figure out how to get the bracket off though?

What am I missing? It seem to be on a shaft that runs straight threw the hydrostatic motor.

K

It is part of the shaft, if you want it out you gotta take the transmission apart. I recommend taking the transmission, rear end and all to wherever it has to go.

Or, if your cork gasket is leaking then take the transmission off of the rear end and just take the transmission.

Oh. I had heard folks mention that they removed them to weld.

I do have a leaky cork gasket so I am planning on removing the hydro motor.

Thanks,

K

I should have also mentioned that welding them while they are still in the transmission is normally not a big deal (depending on how bad they are worn). Just a couple of spot welds in the corners and then file them back square again, normally not enough heat to hurt anything.

Agreed. However, it's never a bad idea to take a wet towel and throw it over the shaft and parts just to help eliminate/reduce the chance that something could happen. Better safe than sorry :beerchug:

I would unhook the battery as welll if you are welding it on the tractor!

Kind of hard to weld the trunion with the battery in (at least on a 1X9). :-)

Thanks for the tips guys, I'm going to pull the hydro tonight.

K

I think it's important for the trunnion "square" hole to be the proper dimensions so the springs apply the correct force. Welding just the corners might not bring the other dimensions into spec. I have repaired several, used keystock for two, but have cut off the old "square" and welded on a replacement for the three most recent repairs. I removed the shaft from the hydro to weld the new square on, but even that weld could be done with wet rags on the arm with the hydro assembled. Just make sure your ground clamp is on the arm, not somewhere else on the hydro.

Nice repair...What are the correct dimensions for inside of the square?

I've seen it published somewhere, but I don't know off hand. I purchased the replacement "square" that I welded on the arm. It's available from forum sponsors and xtrememotorworks.com.