You need to adjust your bar & chain tension as described in your user manual. Here is the location if you have misplaced:
https://images.worx.com/en-us/manuals/WG300%20WG303%20WG304.pdf.
Basically you will take the "large knob" cover off, tighten the bar tension and put the cover back on. This will provide you with additional adjustment tension as needed.
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