Replacing a worn rim sprocket adds life to a chain saw and maintains your Echo CS-600P running smoothly. A worn rim sprocket doesn’t transfer power from your saw’s engine to the string effectively, and puts extra wear on the string. It is located on the ideal side of the saw close to the bolts that encourage the guide bar. Over the years, severe wear finally prevents the string from moving around the bar.
Put on your gloves before you manage the sharpened chain. Disconnect the spark plug lead and disengage the chain brake. Loosen the two nuts securing the guide bar, but don’t remove them. Turn the chain tensioner on the ideal side of the saw counter-clockwise to loosen the string. The chain tensioner is the slotted screw just beneath the two nuts securing the guide bar and sprocket cover.
Unscrew the two nuts securing the sprocket cover and guide bar with your socket wrench, and remove the nuts along with the guide bar cover. Take the guide bar and chain off the saw, taking care managing the sharp teeth of the string.
Remove the retaining ring in addition to the rim sprocket with your pliers. Pull the washer and rim sprocket off the spindle. Inspect the clutch drum located next to the rim sprocket for wear; remove and remove it whenever there are any cracks or other apparent signs of wear.
Replace the clutch drum on the spindle, followed by the new rim sprocket. Replace the washer you removed with the cupped side facing toward the rim sprocket, and fasten the assembled parts with the retaining clip.
Remount the guide bar and loop the chain over the new rim sprocket. Replace the sprocket cover and fasten it using the 2 nuts you removed — but don’t tighten them fully. Lift the guide bar marginally by the nose and tighten the chain tensioner until the string fits snugly against the bar. Tighten the nuts securing the guide bar, and reconnect the spark plug direct to ready your saw to be used.