Instructions / Assembly
OPERATION CS-400
28 X7503255900
© 1/2017 ECHO Inc.
◆ Use the fast idle throttle latch 
only in starting.
Note:  If engine does not start after 5 
pulls, repeat instructions.
Note:  Do not increase engine speed 
while chain brake is locked. 
Severe brake damage will result.
Starting Warm Engine
Make sure the bar and chain are 
free from any obstruction when 
starting the chain saw.
1. Move chain brake lever fully 
FORWARD to LOCK chain brake 
before starting.
2. Confirm there is fuel and chain oil in 
the tanks.
3. Move ignition switch UP to “RUN” position.
4. Securely hold the chain saw as 
shown and pull starter handle.
5. Choke may be used if necessary, but 
after first starting sound, squeeze 
throttle trigger to release choke and 
return engine to idle.
Note:  If engine does not start after 5 
pulls, use cold start 
procedure.
Note:  Do not increase engine speed while chain brake is locked. 
Severe brake damage will result.
Chain brake










