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16 X7503270007
© 08/2013 ECHO Inc.
DESCRIPTION CS-310
5. Mount guide bar (L) on studs, and slide toward sprocket to
make saw chain installation easier. Install saw chain (M) around
sprocket and guide bar as shown, with cutters on top of guide
bar facing forward.
6. Install sprocket guard over guide bar studs. Ensure chain
tension adjuster pin (N) fits into the guide bar adjuster hole,
brake band (O) is positioned around clutch drum. Tighten
sprocket guard nuts finger tight.
7. Turn saw over and check brake band (O) for correct position
around clutch drum (P). If brake band is not in place around
drum, remove sprocket guard and reinstall. Tighten guide bar
nuts finger tight.
Improper sprocket guard assembly can result in serious
injury, and will cause severe saw damage if unit is started.
Never start or operate saw if brake band is not in place on
clutch drum. Always check chain brake operation after replacing guard. Do not use saw if chain
brake does not function properly.
8. 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. Remove air cleaner cover and disconnect spark plug lead.
2. Loosen sprocket guard nuts (H).
3. Hold the bar nose up, and turn the adjuster screw (J) clockwise
until chain contacts underside of the bar.
4. Tighten nuts with the bar nose held up.
F
M
L
N
P
O
For more information
scan this QR code.
J
H