k0ua
Epic Contributor
Here's a pic of the Mohawk brush cutter and the shaft. I was hoping to just extend the square shaft. However, the shafts I see at new implement dealers all look enclosed or something. Is this antique that unsafe?
4 inches of overlap is a little short.. What happens is they sometimes split when they get that short because all of the force is now on a small piece of metal instead of spread along more length..I can't tell if the square tube is welded or pressed in and pinned but if you take it to a driveline guy he might be able to help you.
Now is it dangerous?.. well if you or no one else ever gets near it, no, not at all.. if you ever mess around it while it is spinning it can wad you up like a Chinese kite in a typhoon. Lots of guys have had arms pulled off and worse by getting clothing caught in a spinning PTO shaft.. It ain't pretty.. Never ever get near that thing while it is running.
If it splits the tractor end will beat the he!! out of the rear end of your tractor as it spins around in a big arc before you can get the PTO shut off.. sooo.. yeah, probably ought to see what you can do about getting some more overlap.