Intended use of all trimming tools:
• To ensure high trimming efficiency, select the trimming tool suitable for the grass height
and other surface conditions.
• The grass trimmer is not intended for trimming bushes.
Using the grass trimmer
• Keep the grass trimmer in a proper position. Hold the grass
trimmer with both hands.
• Do not use your arm to move the grass trimmer; use your
wrist to make a swing motion following a horizontal arc from
right to left.
Hold the grass trimmer to easily and safely transfer your
weight between your legs and move slowly taking short
steps.
• Always stand at the bottom of the hill. Caution! You can
lose your balance when working on steep hills. Do not use
the grass trimmer on steep hills.
Please remember that the trimming tool rotates left; trim the tall grass using the left side of
the trimmer. In case you lose balance, the trimming tool will rebound in the opposite
direction.
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Checking the spark plug
To ensure correct engine operation, the gap between the spark plug electrodes must be set
properly, and the spark gap must be free from carbon deposits.
The muffler will be hot after the engine has just stopped. Do not touch the muffler.
Never use spark plugs with incorrect heat rating.
1. Loosen all bolts and remove the top engine cover.
2. Remove the spark plug boot cap and remove the spark plug with a spark plug spanner.
3. Check the spark plug. If the spark plug is worn or the insulator is cracked or damaged,
discard the spark plug. Clean the spark plug with a wire brush if it can be reused.
4. Measure the gap between the electrodes using a feeler gauge.
If adjustment is necessary, carefully bend the side electrode.
Required gap: 0.60 – 0.70 mm.
5. Check if the spark gap washer is in good condition and tighten by hand to prevent
damage to the thread.
6. Tighten with a spark plug spanner to ensure proper sealing.
For new spark plugs, after tightening by hand, tighten with a spanner by 1/2 turn. For
previously used spark plugs, tighten with a spanner by 1/8 to 1/4 turn.
Loose spark plug may overheat and could result in engine damage.
7. Replace the spark plug boot cap.
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