1971Raider10 1 #1 Posted November 6, 2014 (edited) Hey guys, I have a 1992 520-H. When mowing for more than about 5 minutes the belt starts to melt to the PTO disk. The problem gets worse when the deck is lowered/cutting thicker grass. Could this be a problem caused by spindles being low on grease or needing replaced or is there another culprit I should investigate? I attached a picture showing whats happening. Any insight would be appreciated. Thanks, Collin Edited November 6, 2014 by 1971Raider10 Share this post Link to post Share on other sites
ericj 1,576 #2 Posted November 6, 2014 belt to loose and slipping would be my guess. do you have the correct belt. eric j Share this post Link to post Share on other sites
squonk 39,045 #3 Posted November 6, 2014 Just for the heck of it, check your disc and the bearings inside of it. Could be the bell is getting hot enough to melt the belt. I had the outer bearing on a bell go bad 2 years ago without warning. Bearing turned blue instantly and lots of smoke. Bell was so hot I couldn't get it off fast and it ruined the belt. 2 Share this post Link to post Share on other sites
boovuc 1,090 #4 Posted November 6, 2014 I agree with Squonk as a first check. See how hot the bell housing is on the PTO setup first. (Don't do it by touch)! If that is OK, then proceed to the spindle pulleys on the deck. If they are OK, look at the mule-drive pulleys. An infrared temperature gun is really handy for things like this. 1 Share this post Link to post Share on other sites
oldlineman 1,450 #5 Posted November 6, 2014 could be clutch is slipping and making the bell hot thats what they said sounds good to me 2 Share this post Link to post Share on other sites
bowtieguy 334 #6 Posted November 7, 2014 I'm bettin' the belt is worn out and is NOT an OEM belt Share this post Link to post Share on other sites
squonk 39,045 #7 Posted November 7, 2014 I run non OEM belts and wear them to the cords and never melted one except when the brg siezed 1 Share this post Link to post Share on other sites
Tim Bergfeld 55 #8 Posted November 7, 2014 This is how I do it. I tell myself k.i.s.s. keep it simple silly that how I solve all my problems. first check belt tension then take off the belt and rotate the drive spindle if thats good. Then the mule drive my bet is tension by not using a factory belt it might be a touch to long or a bad spindle Share this post Link to post Share on other sites
