Hayden 2 #1 Posted 6 hours ago Hello, Had a pulley in my Mule Drive self disassemble. I have a 520H and looked in the parts manual and the Mule Drive isn't in there, my mower deck PN is either "C560SC01" OR "10525" which I was also unable to find a parts manual for. I would imagine I need to replace the shaft, as the race is pretty marred. The pulley itself doesn't seem to have damage but if I'm buying everything I might as well replace it. A secondary question would be why it broke. I have noticed that my PTO will kick off while mowing a lot, especially when mowing in taller grass too fast. So I just turned in the PTO adjustment a turn (maybe every other week this year) until this broke this weak. What would be a good way to get the PTO adjustment and Mule adjustment where I'm aligned and tightened properly? Thanks for the help. 1 Share this post Link to post Share on other sites
953 nut 67,378 #2 Posted 33 minutes ago One of the best features about Wheel Horse is interchangeability of implements and attachments. The manual below has the parts listed individually but yours appears to need a complete replacement. The mule drive on your 1990 60" mower is the same as other dives. Place a Wanted ad in our classified section for a mule drive. https://www.wheelhorseforum.com/classifieds/wanted/ Share this post Link to post Share on other sites
Ed Kennell 46,557 #3 Posted 32 minutes ago The spring loaded mule drives used on the 520 are not as common as the regular mule drives. You can place an ad in our classified wanted section or contact A to Z tractor parts Share this post Link to post Share on other sites
JoeM 10,092 #4 Posted 26 minutes ago (edited) I would venture to say you had a bearing going bad and dragging the belt. The shaft should be okay as long as you can get the old race off. just clean up the burs so the new pulley slides on. Edited 18 minutes ago by JoeM Share this post Link to post Share on other sites
