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9.2 Air filter
Never use the grass trimmer without an air filter. Clean or replace the filter if it is damaged or dirty.
Clean the air filter like this:
1. Undo the screw in the air filter cover that holds on the outer housing.
2. Remove the outer housing and take out the filter from the inner cover.
3. Wash the filter with soap and water. Do not use petrol!
4. Squeeze the filter and let it dry naturally.
5. Replace the filter and remount the housing with the opening facing downwards.
6. Make sure that the housing is secure so that it won’t shake loose.
9.3 Fuel cap/fuel filter
Remove any sources of ignition, sparks, open flames, lit cigarettes, etc. from the area where the fuel is mixed,
used or stored. Do not smoke while refuelling or using the grass trimmer.
1. Open the fuel tank carefully and release any pressure which might have built up in the tank.
Wipe off any spillage and pour any remaining fuel into a petrol can.
2. Pull out the fuel line/fuel filter using something like a bent wire.
3. Pull out the fuel filter (twisting it a bit helps).
4. Insert a new fuel filter.
N.B.
Never run the engine without a fuel filter.
9.4 Adjusting the carburettor
The carburettor has been factory adjusted for optimum power.
9.5 Spark plug
• Type of spark plug: NGK BM6A or Bosch WS8E
• Electrode gap: 0.65 mm
• Tightening torque: 12–15 Nm
9.6 Sharpening the line cutter knife (on the trimmer guard)
1. Remove the cutter from the trimmer guard.
2. Hold the cutter in a vice. Sharpen the blade using a flat file, sharpening in one direction only and making
sure to maintain the original grinding angle.
10. Storage
1. Clean the exterior of the grass trimmer, guard, trimmer head, spindle, the external parts of the engine, etc.
2. Transfer any fuel remaining in the fuel tank to a petrol container.
3. Start the engine when the fuel tank has been emptied.
4. Allow the engine to idle until it cuts out to empty the carburettor of fuel.
5. Allow the engine to cool for 5 minutes.
6. Use a spark plug socket to remove the spark plug.
7. Pour one teaspoon of pure 2-stroke oil into the cylinder via the spark plug hole, pull the starter handle slowly
a few times to distribute the oil evenly over the inside of the engine, replace the spark plug.
8. Store the grass trimmer in a dry and well ventilated place.
10.1 Using the trimmer after it has been stored
1. Use a spark plug socket to remove the spark plug.
2. Pull the starter handle quickly and smoothly a few times to remove the surplus oil from the cylinder.
3. Clean the electrodes of the spark plug or replace it with a new one.
4. Tighten the spark plug using a spark plug socket.
5. Fill the fuel tank.