brush hog question

i just bought a 8n and brush hog, i have a broken bolt that holds pto shaft to the brush hog
should i replace it with a grade 5 or 8 or does some type of shear pin go in there?

NO!

It's a shear pin. Use a grade two bolt. Carry a couple of spares in the tool box.

Dean

Thanks Dean Thats why i asked before i wrecked something

As Dean says.

You might want get an overiding clutch for the pto. On the 8n the brush hog will take you for a ride you won't forget.Jim

(quoted from post at 14:00:59 08/02/11) You might want get an overiding clutch for the pto. On the 8n the brush hog will take you for a ride you won't forget.Jim

Click to expand...

Yeap!

Make sure your bolt is the correct length and not too long.It can catch weeds,grass,shirtsleeves,etc. if too long.

Thanks for all the advice here. some good thoughts

Absolutely! The ORC fits on the PTO shaft of the tractor, kind of like an adapter to hook the brush hog shaft onto. The ORC is a one way clutch that will allow the brush hog blades to keep turning, while not applying that turning motion to the rest of the drivetrain. Since the brush hog blade assembly functions as a big flywheel, if you don't have an ORC, when you push in the clutch pedal, the PTO shaft keeps the transmission turning. So you don't stop like you planned to, which can lead to all kinds of problems, like hitting objects you planned to miss. And it is plain scary to be driving a tractor that WILL NOT STOP when you want it to!!!

Most farm stores that sell any parts for tractors should have ORC's for sale. I think I pain $50 or $60 for the one I have some years ago. They also can be found with the small size female end that fits on the earlier style, small PTO stub on the tractor, and with the larger male end that is needed for lots of later implements.

When I first got my brush hog, I just had to go out and try it. I didn't hit anything important, but I only ran the machine a little while. It is flat scary and dangerous to run a machine that will not stop when you want it to. I bought my ORC the next day.

An ORC should have a grease fitting on it. I grease my ORC every time I use the PTO and just leave the ORC mounted all the time.

I had to buy a new battery yesterday for my 641D, and plan to do some brush hogging later today. It's kind of fun, and sure makes unused fields look better fast. I hope not too many weeds have gone to seed.

Good luck with your brush hog. Be careful and by all means get an ORC.

There are no shear pins in a splined shaft drive.