Hubby asked me to post his question: We have an Craftsman electric chain saw (model 358.341141 if it makes a difference) The instructions tell me that for tightening the chain, I should "continue turning the adjusting screw until the tension is correct." The question I have is how do I know the tension is correct? I am sure that I could overtighten it, and if I do I bet that it would cause excessive wear on the bar. Too loose and I can just picture the disaster as the chain comes off. What I have done is tightened to the point where if I try hard I can not lift the chain out of the grove on the rail, but there is still some play in the chain. Bottom line, am I about to kill myself?