Hmmmmm okay I thought I had this resolved but it seems not. So if anyone has knows for sure what the correct belt size is it'd be greatly welcomed.
What I've tried so far:
Brand new M36 Kevlar belt: Was impossibly tight, like I was amazed I was able to get on at all! First time I'd fitted a Kevlar belt, which I heard were notoriously hard but this seemed too much so. I am 99% certain that it's too small - as the only way I could fit the belt tensioner pulley at all was to have it in the incorrect position (it's meant to be backwards facing so it extends out closest to the rear drive pulley, I had to put it so it is facing forwards, so it provides much less push/bite on the rear drive pulley when the drive handle is squeezed).
It got the mow done but by the end of the mow the SP wasn't working so well and on inspection the kevlar belt seems more worn than I'd expect from a single mow.
Brand new M37 standard/rubber belt: This did not work at all - far too loose and when drive handle squeezed you could not get the SP to grip/work at all. So I assume this is too large.
Old belt that from faded writing appears to be M36 standard/rubber: This was the belt in use when i bought the mower, it seemed to work well enough but being a rubber belt it gets worn down relatively quickly.
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Again very mixed info online about which belt is correct - some sources saying M36 some M37. From what I've read if a tnesioner is used on the back of the belt you should ensure a kevlar belt is used as rubber ones die very fast.
So would a M37 Kevlar actually work given that an M37 rubber was far too loose?
Thanks in advance. :-)
