Hi LRT with my mates Anniversary he got the new belt to match the one we took off which from memory was an A100 but the books say it should be an A102 but to even get the A100 to work we had to slot the adjuster hole to get enough tension on the belt, something doesn't sound right but I have seen mention on here of some Anniversarys using the A100 belt Sorry to hear you cooked yours, how is the grass growing down your way, sounds like it is a bit out of control at the moment
I've just had a look at mine. The belt is an A100 with the pulleys in the hole closest to the front of the mower.
The belt part number printed on the dashboard is: GT 2200
The bearings collapsed in the two pulleys so I have fitted new genuine ones. The number written on them is 1008 & the outside diameter is roughly 4.5"
Maybe your mates one has had incorrect pulleys fitted or is the tension system not working properly?
This one runs the belt pretty tight.