Echo CS-670 Operator's Manual page 9

Adjusting screw
Proper tension
Bar hole
Clutch cover
Improper tension
• Mount bar and slide toward clutch to make saw
chain installation easier.
• Install saw chain as shown.
Be sure chain is in groove of sprocket and guide
bar.
NOTE
Move chain brake lever fully rearward to install
clutch cover to saw.
• Install the clutch cover tighten nuts finger tight.
Ensure that chain tension adjuster fits into bar
hole and rear locating tab of cover is located
properly.
ADJUSTMENT, CHAIN TENSION
• Turn the adjuster screw clockwise until the chain
touches the bottom of the bar.
• Hold the bar nose up and turn the adjuster
clockwise until the chain fits snugly against the
underside of the bar.
• Tighten both nuts with the bar nose held up.
• Pull the chain around the bar by hand.
Loosen the adjustment if you feel tight spots.
• Start the engine and run at low speed.
Stop and readjust if necessary.
9 CS-670