Well many write that the chain tension is relieved constantly, she did with me. Until I once looked up precisely in the user manual (Who does something like that if you have worked for years with other saws) As it is written, the black set screw lightly to attract, aha. I had given full Lotte and the chain was limp after 1 min. Now I have only the black locking screw is loosened and the sword stretched by spring force alone after. Aha! With this setting, I have today makes vice and chopped four 3m firs in the front yard. Then there followed a hedge of 2 m length. Since the chain was also new so I have about 3 times in 3 hours working tightened. If you are shutting off against the pure cutting time perhaps every 10 minutes. This is so the reference value for tensioning (at the red knob) is called the Bosch. I am quite satisfied and would recommend this saw highly.
