A simple procedure covered in the manual. But in fairness, there is no other choice. But see above-can't give 10 year review on this. I haven't used my 20 saw since I got it. Most trees we're over 3 feet in diameter.
Hoteche 25cc 10" Features & Specs
Editor's Impressions Of The Hoteche 25cc 10"
Tool Motor Power
Value For Money
Hoteche 25cc 10" Final Thoughts
"Fewer parts to break."
It cut through like a knife through warm butter. The chain itself was beginning to wear a bit. My two other new chain saws do the same thing. Chain is easy to put on and tighten. Only time will tell the whole story for the saw.