My Mom's Troy Built Model Series 830 Self Propelled mower stopped pulling. She had to have the transmission worked on last year and this seems to be the same symptom as then. Please share any tips that I can check out before taking it back into the shop. Has anyone else had similar problems with this series mower?

Thanks,
ronniecr

Hi,
It is unusual, you could eaily have a number of ways to adjust, moving a ferulre, thumbwheel, etc. Posted a manual:
http://dl.owneriq.net/5/5f8fa8f2-c4ff-4d51-89dd-5f82df9736b2.pdf
It is horrible and does not show the failings.
Peace,
Clarke