(WG380) 40V SHARE VOLT 12" CORDLESS CHAINSAW WITH AUTO-TENSION (DISCONTINUED)
Chain saw rips, vibrates, does not saw properly
Try this solution
Adjust chain tension
Possible cause: Chain is over tensioned.
To loosen, turn the CHAIN TENSIONING KNOB (8) about a quarter-to half-turn counterclockwise. You should be able to slightly lift the chain without seeing the drive link.