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18 X7702092204
© 10/2013 ECHO Inc.
MAINTENANCE 99944200532
5. Install chain on guide bar with cutters on top of bar facing
toward bar tip.
6. Install guide bar and chain on gear case, engaging chain
with drive sprocket (E).
7. Turn tension adjustment screw clockwise to take up slack in
saw chain.
8. Install guide bar cover (D), and tighten guide bar nuts finger
tight and install guide bar cover screw (B).
9. Adjust chain tension.
To Adjust Saw Chain Tension
Always disconnect spark plug wire before servicing cutting attachment. Wear gloves when handling
saw chain, otherwise serious personal injury may result.
1. Move stop switch to STOP position.
2. Disconnect spark plug lead.
3. Loosen two guide bar nuts (A) until finger tight.
Always loosen guide bar nuts before turning the chain tension
adjuster, otherwise the clutch cover and tensioner will be
damaged.
4. Hold the bar nose up, and turn the adjuster screw (B)
clockwise until the chain fits snugly against the underside of
the bar, as shown. Cold Chain Only - turn adjuster screw
CW an additional 1/8 - 1/4 turn
5. Tighten both guide bar nuts with nose held up. Tighten rear
nut first.
6. Pull the chain around the guide bar by hand. Reduce the
chain tension if you feel tight spots.
7. When chain is properly tensioned, tighten guide bar nuts
securely.
Tighten guide bar nuts to 8 - 9 N•m (71 - 80 in. lbs.) DO NOT
over-tighten nuts. Damage may result
8. Keep chain properly tensioned at all times.
Note: All chains require frequent adjustment.
9. Connect spark plug lead.
Guide Bar Cover Cleaning
1. Remove two (2) guide bar nuts (A) and guide bar cover screw (B).
E
B
D
A
C