DESCRIPTION CS-310
24 X7503275401
© 02/2019 ECHO Inc.
Adjusting Chain Tension
Always loosen sprocket guard nuts before turning the
chain tension adjuster, otherwise the sprocket guard
and tensioner will be damaged.
1. Release the cylinder cover
latches, and remove the cylinder
cover. Remove spark plug lead.
2. Unlock chain brake and loosen
sprocket guard nuts.
3. Hold the bar nose up, and turn
the adjuster screw (A) clockwise
until chain contacts underside of
the bar.
4. Tighten nuts with the bar nose
held up.
5. Pull the chain around the bar by
hand. Loosen the adjustment if
you feel tight spots.
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