Question:
I just got a poulan pro pp4620 avx, used it about 3 to 4 hours. I can not keep the chain tight, have to stop about 10 minutes and tighten it up. I know the chain will strech a little being new, but after 3-4 hours of use one should not have to stop every 10 minutes and tighten it up. Is my new saw defective?