ML3 866 #1 Posted October 26, 2023 Took 953 out for ride last night. As I was pulling into garage smelled burnt belt & noticed the engine pulley was "walked out" causing belt to rub in belt guard. I gently tapped pulley back on shaft w/rubber mallet. That seemed to align the belt again but now the pulley/clutch is separated which I don't recall? It was getting dark so I didn't have much time to look into it. Assume there's some sort of set screw or something for clutch/pulley to prevent it from happening? They key is still in the shaft slot. 1 Share this post Link to post Share on other sites
Pullstart 59,859 #2 Posted October 26, 2023 There should be a set screw to keep the engine pulley in place for sure. It might help to tighten, loosen, tighten, loosen, etc. you can often drive the set screw into the shaft or collar enough to hold it well with that method. As for adjusting the PTO bell, the 3/8” nuts on the bottom right corner of the picture can be adjusted in. 2 1 Share this post Link to post Share on other sites
953 nut 51,940 #3 Posted October 26, 2023 When the drive pulley moved outward it moved the PTO clutch plate and sleeve with it. If you remove the outer nut on the clutch rod and loosen the bolt on the arm (19) you can pull the clutch bell (!) off and you will probably find the 1/4-20 X 1/4 set screw has come loose preventing the bell from sliding back into place. I would suggest replacing both set screws. Once the ends become dull the just don't bite into the key as well. 2 Share this post Link to post Share on other sites
ML3 866 #4 Posted October 26, 2023 1 hour ago, 953 nut said: When the drive pulley moved outward it moved the PTO clutch plate and sleeve with it. If you remove the outer nut on the clutch rod and loosen the bolt on the arm (19) you can pull the clutch bell (!) off and you will probably find the 1/4-20 X 1/4 set screw has come loose preventing the bell from sliding back into place. I would suggest replacing both set screws. Once the ends become dull the just don't bite into the key as well. Thanks! I figured it was a set screw issue. It was getting late last night so I'll look at it this weekend. 1 1 Share this post Link to post Share on other sites
ML3 866 #5 Posted October 28, 2023 Think I got the pulley/clutch issue fixed. There's apparently 2 set screws that secure to key. The 2nd one was loose. Inspected the threads & they looked good. I re-installed them & put a touch of loctite on threads. Weather permitting tomorrow I'll drive tractor to see if it's all good, getting late & I'd have to move 3 other tractors to get the 953 out. Thanks again for the information 1 Share this post Link to post Share on other sites
