Quick Hitches Removing PTO from bush hog

[JTXN]

Hello,
New to tractors and this forum. I just purchased a 60s ish MF 135 from my father in law. It's the diesel version and runs great, just needs a little work.

He gave me a brush hog that needs a new PTO shaft. I'm trying to disconnect the yoke from the other yoke (correct me if my terms are wrong) that attaches to the slip clutch.

I've removed the 2 clips on the PTO shaft yoke. Do I need to remove clips on the inside, then hammer it out? All the videos I've seen use a vice or a press which does me no good since its attached to the gearbox. The gearbox and blades move easily for being outside for 10 years. I realize a new mower may be better, but I just want to cut once and then worry about it next year.

Appreciate any help.

 

[TractorGuy]

You need to pull the clutch off the gearbox. Edit: Looks like it has a clamp bolt or tapered pin holding the clutch end to the gearbox. New shaft will come with a new clutch if replacing the whole thing. Look for a complete replacement to simplify your life.

Bush Hog 35 and 36 Rotary Cutters Parts Diagrams

Replacing u joints is tricky if you've never done it. You will need to get the whole thing off and in a vise to do it properly. Getting the caps back in, clipped, and unloaded without damaging the needle bearings takes some practice. Might want to watch some you tube videos on replacing u joints.

 

[countrybumpkin]

Basically this above. What exactly does it need ?

 

[CobyRupert]

I may be all wet, but I don't believe you want to disconnect one yoke from the other yoke. I assume the entire joint needs to come off the gearbox input shaft that we can't see under the plastic housing in your first picture.

Edit: On 2nd look, it looks like that universal joint connects to a slip clutch that then connects to the gearbox input shaft.

 

[JTXN]

The shaft plastic is broken and slid down. So the metal part where both shafts meet was exposed to the elements for 10 years. Tried a bunch of PB blaster, chained it to a tree and reversed, and it will not budge. Its about 3" too long to hook up to the tractor PTO. Not sure if its bent, I didnt hit it too hard for fear of further damage.

 

[TractorGuy]

Click on the link I furnished and go to the driveshaft section to see how the parts break down. If you live near a Agri Supply they will probably have a complete shaft to fit it.

 

[JTXN]

Click on the link I furnished and go to the driveshaft section to see how the parts break down. If you live near a Agri Supply they will probably have a complete shaft to fit it.

Thanks to all. I'll do some more investigating and take some more pictures. Sounds like it might be quite a bit easier to take the whole thing off.

 

[TractorGuy]

I've fought and won over several stuck shafts. If it isn't bent some penetrating fluid and heat might get it.

That parts breakdown looks like the actual shaft tubes are attached at the joints with roll pins.

Problem is with it sitting that long I imagine the clutch is stuck too. You will need to loosen and free up everyting to trust it won't damage the tractor when you hit something.

 

[JTXN]

I've fought and won over several stuck shafts. If it isn't bent some penetrating fluid and heat might get it.

That parts breakdown looks like the actual shaft tubes are attached at the joints with roll pins.

Problem is with it sitting that long I imagine the clutch is stuck too. You will need to loosen and free up everyting to trust it won't damage the tractor when you hit something.

This can be remedied with a whole new clutch / PTO assembly right? Agrisupply has a few for 150-200.

 

[countrybumpkin]

Yes a complete shaft would be all new parts