Changing The Engine Oil; Checking/Sharpening/Replacing The Blade; Adjusting The Carburettor; Adjusting The Bowden Cable - Grizzly BRM 4210-20 Traduction De La Notice D'utilisation Originale

(13) by simultaneously pulling
and turning.
2. Unscrew the spark plug (13) an-
ticlockwise using a spark plug
wrench.
3. Check the spark gap using a
feeler gauge (available from
specialist shops). The spark gap
must be at least 0.5-0.6 mm.
4. If necessary, adjust the gap by
carefully bending the ground
electrode on the spark plug.
5. Clean the spark plug with a wire
brush.
6. Insert the cleaned and adjusted
spark plug or replace a dam-
aged spark plug with a new one
(recommended torque 20 Nm,
determined with a torque
wrench) (see "Replacement
parts/Accessories").

Changing the Engine Oil

Change the engine oil with the
petrol tank empty and the engine
warm.
• Change the engine oil for the
first time after around 5 operat-
ing hours then every 50 operat-
ing hours or annually.
• Dispose of the used oil in an eco-
friendly manner (see "Disposal/
Environmental protection").
1. Remove the spark plug connector (
12) (see "Maintaining the Spark Plug").
2. Open the oil tank cover (
pump out the motor oil with an oil
pump.
3. Refill with engine oil (see "Initial Op-
eration").
Checking/Sharpening/Replac-
ing the Blade
• Take off the spark plug connector
(
and damage.
• Always have a blunt blade resharp-
ened by a specialist company, as an
imbalance check can be carried out
there.
• Always have a specialist workshop
change a damaged or imbalanced
blade.

Adjusting the Carburettor

The carburettor has been preset in the fac-
tory for optimum performance. If readjust-
ments are required, have the adjustments
made by a specialist workshop.

Adjusting the Bowden Cable

If the Bowden cable becomes misplaced
for the drive and has too much play, it can
be adjusted.
O
19) and
Safety bracket (
Only allow specialist companies to
install and dismantle the knife.
Wear gloves when handling the
blade.
12) and check the blade for wear
Incorrect installation can result
in serious injury.
1. Loosen the small lock nut (26).
2. - Turn the adjusting nut (27) an-
ticlockwise: The Bowden cable
shortens.
- Turn the adjusting nut (27)
clockwise: The Bowden cable
lengthens.
2) releases no igni-
GB
91