Chainsaw talk

[gimpyrobb]

So I've had a Stihl 029 super for a long time. I haven't used it the whole time i've owned it as much as I have here at the new house. My current use is sectioning a stump to remove. The tree was cut down long before we got here but they had left a 5ft high section of the trunk. I cut that down and started to use a Dr. power stump grinder. I honestly didn't think it would do much, but it is impressive! After going around the stump, I realized I should do more sectioning and removal with the chainsaw, so that brings us to these questions.

1- My chain gets loose on the bar after a while.Is there a way for the bar nuts to let it slide and give the chain slack? What would I do/replace to fix that?

2- I don't know how I did it, but while cutting across the bottom, the handle pulled out of the hole it sits in. How do I get it back in?

I will be hunting for answers on the web, but wanted to see what you guys come up with.