jeepdan 321 #1 Posted August 24, 2023 (edited) First time using dad's inherited 310-8 yesterday after a lengthy overhaul and found this. The NOS belt had a section torn out of it after mowing. Having never used this model of deck before, I was very careful routing the belt, and I'm positive that it was correct. It still is routed correctly. The very old belt that I had replaced had multiple sections of one side missing. Help or ideas requested. Dan Edited August 24, 2023 by jeepdan Share this post Link to post Share on other sites
Rick3478 376 #2 Posted August 24, 2023 That looks like the dreaded six-side belt on the 37" two-blade deck. It was not one of WH's better ideas. The belt turns easily and once turned blows up pretty fast. You can replace it and adjust carefully and it might last awhile. Or you can swap three of the pulleys for flat idlers and upgrade to a V-belt. I recommend the latter. 2 Share this post Link to post Share on other sites
jeepdan 321 #3 Posted August 24, 2023 (edited) Thanks for the reply. You are correct on the model of deck/belt. This deck has been repaired my me (rust out) a few times through the years, and it is nearing the end of it's useful life. Currently looking for a NOS or almost new condition deck to purchase. Found a few but getting one shipped has been a problem. Dan Edited August 24, 2023 by jeepdan Share this post Link to post Share on other sites
peter lena 8,095 #4 Posted August 24, 2023 @Rick3478 agree with the belt change out , done a lot of functional detailing on any belt drive set up , typically found , binding , rusty , does not apply , non lubricated collective restistance , that starts , belt deflection . would verify every stage of motion . pete Share this post Link to post Share on other sites
Rick3478 376 #5 Posted August 24, 2023 2 hours ago, jeepdan said: Thanks for the reply. You are correct on the model of deck/belt. This deck has been repaired my me (rust out) a few times through the years, and it is nearing the end of it's useful life. Currently looking for a NOS or almost new condition deck to purchase. Found a few but getting one shipped has been a problem. Dan If you're looking for a new deck, I'd recommend a 42. 1 Share this post Link to post Share on other sites
jeepdan 321 #6 Posted August 24, 2023 1 hour ago, Rick3478 said: If you're looking for a new deck, I'd recommend a 42. Thanks for the advice. Considering trying to find a mower deck in really good shape that is reasonably close to me or someone who can ship it, I'm open for any model. If I find something too large for the 310, I can take the 36"RD off of my 312-8 and swap. Dan 1 Share this post Link to post Share on other sites
