I have an X540 with the 48" deck and about 250 hours on the clock. About 3 weeks ago I engaged the PTO for the mower deck and smoke came pouring out. I immediately shut it off and found the two plastic pieces shown below jammed into one of the pulleys. I have no idea where they came from but when I removed them everything seemed to work just fine. Until now.
During my last mowing I noticed a lot of belt dust buildup on the deck. I removed the deck today, cleaned everything and examined the belts to find a rubbing point. Although the deck belt had a few small marks, it looked just fine as did the drive belt which transmits power to the deck. Everything seemed to move perfectly without any resistance when I manually turned the pulleys. I cleaned the deck and ran it for about 20 minutes with same results: lots of belt dust, especially on the front left side of the deck (see photos with plastic spindle cover removed). Any suggestions for next steps?
Thanks in advance!