mikemc53 10 #1 Posted August 3, 2018 OK, so I noted earlier today that I just got a 416H that is in need of some work - separate issue. Since the 416 is not working and I have a real nice C-81 in need of a mower deck I took the deck from the 416 and put it on the C-81. Now, I haven't cut grass with the C-81 in a few years but it gets used regularly to push snow and work around the yard - runs like a top. Having a problem cutting though. It seems that with very little resistance the blades want to stop. The engine does not slow, or bog, but the mule drive pulley will slow and then stop, Now I know that the C-81 is only an 8 HP compared to the 416H but I used to cut with it before, pretty well. Could it be the mule drive itself? Not sure how those things work but wondering if that could be a problem. Spins the blades fine when it isn't meeting any resistance. Tightened the belt but it doesn't appear to be slipping, just the pulley slows then stops. Thoughts? Share this post Link to post Share on other sites
953 nut 51,023 #2 Posted August 3, 2018 Is the clutch on the PTO slipping, it may need to be tightened. 2 Share this post Link to post Share on other sites
Cee245 742 #3 Posted August 3, 2018 I agree @953 nut. The trunion needs tightened. Cory Share this post Link to post Share on other sites
pfrederi 17,040 #4 Posted August 3, 2018 (edited) Try tighten teh PTO trunion (blue mark) at least 1 whole turn Put a splotch of white paint on teh PTO cone then you can see if it is slipping. Edited August 3, 2018 by pfrederi 4 Share this post Link to post Share on other sites
wallfish 15,770 #5 Posted August 3, 2018 And since that PTO hasn't been used for a while, You can resurface it with a belt sander and lightly sand the clutch lining using a sanding block. Makes a big difference when both surfaces are flat and using the entire contact area for friction. 1 Share this post Link to post Share on other sites
mikemc53 10 #6 Posted August 3, 2018 Thanks gang. i tightened it up and it made the difference - I should have remembered that from a few years ago. The trunnion is at the very end of it's adjustment on the very last thread. What happens when it needs adjustment later on? Share this post Link to post Share on other sites
dcrage 620 #7 Posted August 3, 2018 You will need to get a new belt. The current belt has been stretched and this has been compensated by adjusting the trunion. 1 1 Share this post Link to post Share on other sites
pfrederi 17,040 #8 Posted August 3, 2018 If you are at the end of the trunion you need a new friction surface The belt will not solve that 2 1 Share this post Link to post Share on other sites
mikemc53 10 #9 Posted August 3, 2018 Where is the best place to get the new friction surface and is it easy to change out? Could I possibly use one from another WH? Share this post Link to post Share on other sites
953 nut 51,023 #10 Posted August 4, 2018 58 minutes ago, mikemc53 said: Where is the best place to get the new friction surface and is it easy to change out? Could I possibly use one from another WH? PM Sent. There are new ones on Ebay but we are not supposed to attach links. 1 Share this post Link to post Share on other sites