Anova MG246 Manuel D'instructions page 101

When adjusting, take the following prompts:
Make sure to adjust the carburetor with the bar
chain attached.
H and L needles are adjusted by authorized
persons. The authorized range within the turn
number as shown below.
Needle H –1/4 Needle L –1/4
2. Start the engine and let it warm up at low
speed for a few minutes.
3. Turn the idle speed adjusting screw (T) counterclockwise ○ b so that
the saw chain does not rotate. If the idle speed is too slow, turn the screw
clockwise ○ a.
4. Make a test cut to adjust the H needle for best cutting power, not
maximum speed.
(T) Idle adjusting screw (L) Low speed needle (H) High speed needle
■CHAIN BRAKE
The chain brake is a device that stops
the chain instantly if the chain saw
backs up due to kickback.
Normally, the brake is activated
automatically by inertial force. Can also
be activated manually
Pushing the brake lever (front
handlebar guard) down. When the
brake works, a white cone comes out of the base of the brake lever. To
release the brake, lift the front handle shield toward the front handle until
a clicking sound is heard.
When the brake comes on, release the throttle trigger to reduce engine
speed. Continuous operation with the brake engaged will generate heat
from the clutch and can cause problems.
Be sure to check the operation of the brake in the daily inspection.