Echo PPF-280 - Manual (Page 28)

28
Sprocket Cover Cleaning
1. Remove guide bar nuts (A), and unscrew sprocket cover screw (B).
2. Remove sprocket cover (D).
3. Gently brush debris from inside guide bar cover and from around
sprocket.
4. Turn tension adjustment screw (C) to ensure chain tension adjuster
pin fits into the guide bar adjuster hole.
5. Install sprocket cover (D), tighten guide bar nuts (A) finger tight,
and fasten sprocket cover screw (B).
6. Adjust chain tension.
E
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 (C) to ensure chain tension adjuster
pin fits into the guide bar adjuster hole.
8. Install sprocket cover (D), tighten guide bar nuts (A) finger tight,
and fasten sprocket cover screw (B).
9. Adjust chain tension.
a
C
D
B
To Adjust Saw Chain Tension
warning
Always disconnect spark plug wire before servicing cutting attach-
ment. 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 guide bar nuts (A) until finger tight.
IMPORTANT
Always loosen guide bar nuts before turning the chain tension ad-
juster, otherwise the clutch cover and tensioner will be damaged.
4. Hold the bar nose up, and turn the adjuster screw (B) clockwise un-
til 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.
a
B