OPERATION CS-400
34 X7503256004
© 08/2020 ECHO Incorporated
Running
The saw chain should not move at idle, otherwise serious
personal injury may result.
Note: If saw chain moves adjust carburetor according to
“Carburetor Adjustment” instructions in this manual, or see
your dealer.
1. After engine starts, allow it to
return to idle and warm up before
using.
2. Move chain brake lever fully
REARWARD to UNLOCK chain
brake.
3. Squeeze throttle trigger (B)
gradually and increase engine
speed.
4. The chain starts running when
the engine reaches clutch
engagement speed (see
technical data page).
5. Confirm proper acceleration and
lubrication of chain and bar.
6. Do not run the engine at high speed unnecessarily.
7. Be sure that saw chain stops moving when throttle trigger is released.
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