Echo HCA-2620, Operator'S Manual, Page: 33 / 48

HCA-2620 MAINTENANCE
X7502342200 33
© 5/2017 ECHO Inc.
ENGLISH
When carburetor adjustment is completed, the cutting
attachment should not move at idle, otherwise serious personal
injury may result.
Engine Break-In
New engines must be operated a minimum duration of two tanks of fuel
break-in before carburetor adjustments can be made. During the break-in
period your engine performance will increase and exhaust emissions will
stabilize. Idle speed can be adjusted as required.
High Altitude Operation
This engine has been factory adjusted to maintain satisfactory starting,
emission, and durability performance up to 1,100 feet above sea level (ASL)
(96.0 kPa). To maintain proper engine operation and emission compliance
above 1,100 feet ASL the carburetor may need to be adjusted by an
authorized ECHO service dealer.
If the engine is adjusted for operation above 1,100 feet ASL, the
carburetor must be re-adjusted when operating the engine below
1,100 feet 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.
Parts Required: None
A