SRM-2320T MAINTENANCE
X7732278300 39
© 08/2019 ECHO Inc.
High Altitude Operation
This engine has been factory adjusted to maintain satisfactory starting and 
durability performance up to 330 m (1100 ft.) above sea level (ASL) (96.0 
kPa). To maintain proper engine operation and emission compliance above 
330 m (1100 ft.) ASL the carburetor may
 need to be adjusted by an 
authorized ECHO service dealer.
If the engine is adjusted for operation above 330 m (1100 ft.) ASL, the 
carburetor must be re-adjusted when operating the engine below 
330 m (1,100 ft.) ASL, otherwise severe engine damage may result.
Note:  Every unit is run at the factory and the carburetor is set in 
compliance with emission regulations. Carburetor 
adjustments, other than idle speed, must be performed by an 
authorized ECHO dealer.
1. Check idle speed and reset if 
necessary. If a tachometer is 
available, idle speed screw (A) 
should be set to the 
specifications found on 
“Specifications” page of this 
manual. Turn idle screw (A) 
clockwise to increase idle 
speed; counterclockwise to 
decrease idle speed.
When carburetor adjustment is completed, the cutting 
attachment should not move at idle, otherwise serious personal 
injury may result.
Lubrication
Level 1.
Parts Required: Lithium Based Grease.