Makita BCM2600 Manuel D'instructions page 13

Supply of grease to gear case
Supply grease (Shell Albania 3 or equivalent ) to the gear case through the grease hole every 30 hours.
Suction head in the fuel tank
The fuel filter (A) of the suction head is for filtering the fuel to the carburetor.
A periodical visual inspection of this fuel filter is highly recommended.
To inspect the fuel filter, open the tank cap and pull out the suction head
through the opening of the tank using a wire hook.
If the filter is found to have hardened, polluted or clogged up, it should be
replaced.
Insufficient fuel supply caused by the deteriorated filter will result in the poor
performance of the engine. It is therefore important to replace the fuel filter
at least quarterly to ensure fuel-supply to the carburetor.
Cleaning of muffler exhaust port
Check the muffler exhaust port (B) regularly. If it is clogged by carbon
deposits, scratch out the deposits carefully with a suitable tool.
STORAGE
When the Brush Cutter/String Trimmer is in storage for a long time,
1 Drain all fuel from the fuel tank into a container approved for gasoline.
Run the engine until it stops.
2 Clean all foreign material from the machine and store it in a well-venti-
lated place that is not accessible to children.
A
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B