MAINTENANCE
SRM-225
24
X7702092207
© 2/2017 ECHO Inc.
Guide Bar and Saw Chain Replacement
Never try to replace or adjust guide bar and saw chain with en-
gine running. Always disconnect spark plug wire before servic-
ing guide bar and saw chain. This saw chain is VERY sharp,
wear heavy gloves to protect your hands when handling it. Wear
eye protection meeting CE or ANSI specification Z87.1.
Guide Bar Replacement / Installation
Level 2.
1.
Remove two guide bar nuts (A)
and sprocket cover screw (B),
turn saw chain tension adjust-
ment screw (C) counterclock-
wise 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.
Guide Bar Cover Cleaning
1.
Remove two guide bar nuts (A) and guide bar cover screw (B).
C
A
B
C
D
E