cafoose 3,135 #1 Posted August 21, 2022 I got this Bearcat 73040 trimmer and the belt keeps jumping off after about two minutes of running. It's a pain to put it back on because I have to remove 7 bolts to get to it and reach inside a very small opening to feed it back on the pulleys. I took a straight edge and made sure the pulleys were aligned properly. The bearings are good and the belt is new and tight. What could be causing it? Share this post Link to post Share on other sites
Ed Kennell 35,616 #2 Posted August 21, 2022 Is the belt width OK Chuck? Entire belt in the Vee? 1 1 Share this post Link to post Share on other sites
cafoose 3,135 #3 Posted August 21, 2022 Yes entire belt is in the Vee. I ordered this from Amazon. Maybe I should have gotten a Kevlar belt? I may try and return it. https://www.amazon.com/dp/B00E42CID2?psc=1&ref=ppx_yo2ov_dt_b_product_details Share this post Link to post Share on other sites
Ed Kennell 35,616 #5 Posted August 21, 2022 Hard to believe the belt can get out of those pulleys. What's with the empty key slot in the one pic? 1 Share this post Link to post Share on other sites
cafoose 3,135 #6 Posted August 21, 2022 (edited) 7 minutes ago, Ed Kennell said: What's with the empty key slot in the one pic? I think the engine was made for different applications Edited August 21, 2022 by cafoose 2 Share this post Link to post Share on other sites
adsm08 1,429 #7 Posted August 21, 2022 Well, if my years in IT taught me anything relevant to this it's that if you leave that lower guard off that belt will never jump again. The principal being "The sooner you put it together, the sooner you have to take it back apart" and the corresponding real world application being that if you never bother to finish putting it together it somehow stays fixed. 5 Share this post Link to post Share on other sites
cafoose 3,135 #8 Posted August 21, 2022 9 minutes ago, adsm08 said: The principal being "The sooner you put it together, the sooner you have to take it back apart" The problem with that is the lower cover supports the cutter head/pulley assembly, the front cover is easy with only 3 bolts, and the rear cover supports the handle. 1 Share this post Link to post Share on other sites
Pullstart 59,561 #9 Posted August 21, 2022 4 hours ago, cafoose said: I have to remove 7 bolts I read “belts” in my mind and was confused when I couldn’t find any more than one! 3 Share this post Link to post Share on other sites
cafoose 3,135 #10 Posted August 21, 2022 2 minutes ago, Pullstart said: I read “belts” in my mind and was confused when I couldn’t find any more than one! Maybe because I said "bolts" and your mind read "belts" 1 Share this post Link to post Share on other sites
oldlineman 1,450 #11 Posted August 22, 2022 Could you fashion some belt retainers similar to the ones on our horses at the engine pulley. 1 Share this post Link to post Share on other sites
cafoose 3,135 #12 Posted August 22, 2022 1 minute ago, oldlineman said: Could you fashion some belt retainers similar to the ones on our horses at the engine pulley. I ordered a Stens True Blue belt. I'll see how that goes if not, I may try something like that. A search on the internet and I found nobody else that had that same problem with that machine 2 Share this post Link to post Share on other sites
Thompson1276 256 #13 Posted August 22, 2022 Pulley might be bent or not centered 1 Share this post Link to post Share on other sites
cafoose 3,135 #14 Posted August 24, 2022 I got a Stens True Blue belt and put that on today and used it for 30 minutes and it never came off thanks to everyone for your help 1 Share this post Link to post Share on other sites
