28 X7502308106
© 09/2013 ECHO Inc.
MAINTENANCE PPF-225
Guide Bar Replacement / Installation
Level 2.
1. Remove two (2) guide bar nuts (A) and sprocket cover screw
(B), and turn saw chain tension adjustment screw (C)
counterclockwise to release tension.
2. Remove guide bar cover (D).
3. Remove guide bar and saw chain from gear case and
sprocket.
4. Remove chain from guide bar and check guide bar for
damage and excessive or uneven wear. Replace guide bar
if necessary
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.
Sprocket Cover Cleaning
1. Remove two (2) 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.
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.
A
C
B
D
E
B
D
A
C