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CS-310 DESCRIPTION
© 08/2013 ECHO Inc.
X7503270007 17
5. Pull the chain around the bar by hand. Loosen the adjustment if
you feel tight spots.
Tighten guide bar nuts to 4.5 – 7.5 N•m (40 – 65 in•lbf) DO NOT
over-tighten nuts. Damage to saw may result.
6. Keep chain properly tensioned at all times.
Note: All chains require frequent adjustments.
7. Replace spark plug lead and air cleaner cover.