Which statement best describes proper chain tension verification after mounting?

Which statement best describes proper chain tension verification after mounting?

• A. Should be able to pull chain along guide
• B. Tighten so there is no slack
• C. The chain should be completely tight with no movement
• D. Retension after every cut

Answer: (A)

The main idea is to verify that the chain is at the right tension by testing how it sits on and moves around the guide bar. After mounting, you should be able to pull the chain along the guide bar with your hand. This shows the chain is engaged with the drive links and seated in the groove without being too loose or overly tight. If the chain can be pulled along the bar smoothly, it’s at a proper tension for safe operation. Why the other ideas aren’t as good matches: making the chain completely tight with no slack isn’t how chainsaw tension works—there needs to be a little give to accommodate lubrication and thermal expansion. A chain that’s perfectly tight with no movement can place excessive stress on the bar, chain, and sprocket. Retensioning after every cut isn’t necessary and can lead to over-tightening or constant adjustments; tension should be checked as needed and after mounting, not as a ritual after every cut.

The main idea is to verify that the chain is at the right tension by testing how it sits on and moves around the guide bar. After mounting, you should be able to pull the chain along the guide bar with your hand. This shows the chain is engaged with the drive links and seated in the groove without being too loose or overly tight. If the chain can be pulled along the bar smoothly, it’s at a proper tension for safe operation.

Why the other ideas aren’t as good matches: making the chain completely tight with no slack isn’t how chainsaw tension works—there needs to be a little give to accommodate lubrication and thermal expansion. A chain that’s perfectly tight with no movement can place excessive stress on the bar, chain, and sprocket. Retensioning after every cut isn’t necessary and can lead to over-tightening or constant adjustments; tension should be checked as needed and after mounting, not as a ritual after every cut.