Posted by Dan in CO on May 13, 2010 at 13:17:03 from (72.19.169.14):
In Reply to: PTO Guard posted by ck1 on May 13, 2010 at 10:35:03:
Having an ORC (Over Running Clutch) on the PTO shaft for brush hogging adds a good measure of safety. Having that additional length and girth of the ORC down there in the open air spinning at 540 RPM’s with fingers, arms, shoelaces, sleeves and the like in the way is not safe. I posted the question the other day about ORC covers and received a number of great responses including some ideas for building such a cover from “Crem” and “Heybusdriver”. Both of those guys built one out of steel and did a fine job of it. Thanks much guys. Unfortunately, I do not own a welder and having it done just isn’t as much fun as doing it yourself. I decided to make one out of 4 inch, schedule 40 ABS sewer pipe. There is something poetic about having a chunk of sewer pipe hanging off the rear of The Beast!
I first made some studs to replace the bolts that hold the limit chain brackets out of 7/16 – 14 all thread. I used 2 jam nuts to provide a spacer between the limit chain bracket and a 4-inch ABS “Johnny ring” flange. The flange bolt pattern is very close to the 4-¼ inch pattern on the limit chain brackets, I just needed to drill out the flange to accept the 7/16 studs. I then glued a male threaded connector on the Johnny ring and cut a short length of pipe and put a cap on it to allow for easy removal.
Now I can keep the ORC in place while using other implements without the worry that someone can get caught up in it.
However, this thing is made of plastic! For your set of circumstances, I would not recommend doing it my way since you or anyone using your tractor getting on from the rear might have the tendency to use it as a step. I’m not sure the cover & plastic Johnny ring would hold the weight & it would be a disaster if it broke. The better thing for your situation is to get an ORC that slips on and locks in place with a button on the side.
Some folks have said my cover would be a pita to remove every time you needed to access the grease fittings or drive the pin out. I have found it pretty simple to just back out the 4 nuts & slip it off.
This post was edited by Dan in CO at 13:19:49 05/13/10.
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