I have done 5 in 25 hours (brand new) on my 242 with the last one being after market apparently indestructible...it lasted 5 minutes.
My dealer says there is nothing wrong, the ground is a bit bumpy and the blade touches the ground occasionally, surely the belts should last this???
Try running a slightly longer belt or backing off the belt tension if it is adjustable
In theory the belt tensioner should simply swing in when there is a momentary excessive load on the blades
I have not touched one yet but I regularly fit belts 1" longer to customers who are always breaking belts .
Too long & the belts will slip on heavy cuts .
As the years go by Husqvarna products get noticeably worse
To the point that the only Husqvarna products I recommend to my customers are chain saws & leaf blowers
Everything else made by Husqvarna USA is trash
We get some of the EU made products down here and again there is a noticeable increase in quality in the EU models
Seem like they are treating the USA market with total contempt
There is no product so badly made or designed that you can not make it a success in the market place with sufficient advertising.
Down here Husqvarna outs spends the rest of the market at least 3 to 1 and that says a lot
God products sell on their merit, bad products have to be sold to the public