Echo CS-450P Operator's Manual

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Echo CS-450P Operator's Manual Manual pdf 11 page image

11 CS-450PAdjusting screwDirection to tensionthe chainProper tension Improper tension7. Turn saw over, and check brake band for correctposition on clutch drum. If brake band is not inplace around drum, remove cover, make surebrake is unlocked, and reinstall. Tighten clutchcover nuts finger tight.WARNINGImproper clutch cover assembly can result inserious injury, and will cause severe sawdamage if unit is started. Never start oroperate saw if brake band is not in place onclutch drum. Always check chain brakeoperation after replacing cover. Do not usesaw if chain brake does not functionproperly.ADJUSTING CHAIN TENSIONIMPORTANTAlways loosen clutch cover nuts before turningthe chain tension adjuster, otherwise the clutchcover and tensioner will be damaged.1. Remove spark plug lead. (See page 25)2. Loosen two clutch cover nuts, if necessary.3. Hold the bar nose up, and turn the adjusterscrew clockwise until chain fits snugly againstunderside of the bar.4. Tighten both nuts with the bar nose held up.5. Pull the chain around the bar by hand. Loosenthe adjustment if you feel tight spots.6. When chain is properly tensioned, tighten clutchcover nuts securely - 20 to 23 N·m (200 to 230kgf·cm).7. Keep chain properly tensioned at all times.