RedRover 27 #1 Posted July 5, 2020 Okay folks, why does the belt come off frequently while mowing with my 312-8 and 37" cut deck. I'm using proper tension. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,137 #2 Posted July 5, 2020 Six- sided belt? Garry Share this post Link to post Share on other sites
953 nut 56,181 #3 Posted July 6, 2020 Belt routed correctly? If the belt going from the PTO is not as shown on the post Garry gave you (top to right, bottom to left) the power will be applied to the slack side and the belt will jump off. Share this post Link to post Share on other sites
RedRover 27 #4 Posted July 6, 2020 Thank for the quick reply. I believe the belt is routed correct as shown in the diagram. My problem is everything is fine for the first half hour of mowing. I usually check the tension before mowing. Share this post Link to post Share on other sites
tarcoleo 119 #5 Posted July 6, 2020 Only time I have had that problem is when I fitted a 5/8" (B) belt on my C-81 w/48" deck, instead of the proper 1/2" (A) belt. Share this post Link to post Share on other sites
