Echo CS-310 Operator's Manual page 17

CS-310
6. Install the sprocket guard over the guide bar studs. Ensure
chain tension adjuster pin (F) fits into the guide bar adjuster
hole (D). Tighten sprocket guard nuts finger tight.
7. Adjust saw chain tension, as instructed in "Adjustment, Chain
Tension".
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. 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.
Tighten guide bar nuts to 1206.58 to 1379.95 kPa. DO NOT
over-tighten nuts. Damage to saw may result.
6. Assemble components in reverse order.
7. Keep chain properly tensioned at all times.
Note: All chains require frequent adjustments.
X7503277900
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DESCRIPTION
A
Shown with
optional
Kick Guard
Shown with optional Kick Guard
TM
TM