Husqvarna 543RBX Operator's Manual page 8

• Regularly check that the muffler is securely attached
to the product.
Cutting attachment
WARNING: The cutting attachment must not
rotate when you do work on it. Make sure
that the engine has stopped. Remove the
spark plug cap before you do work on the
cutting attachment.
WARNING: Make sure that the cutting
attachment is not damaged. A damaged
cutting attachment can cause accidents.
Replace a damaged cutting attachment.
WARNING: Use the correct cutting
attachment. Only use the cutting attachment
with the guards we recommend, refer to
Accessories on page 25 .
Cutting equipment
• Use the blades and grass knives to cut coarse grass.
• Use the trimmer head to cut grass.
• An incorrectly sharpened or damaged blade
increases the risk of accidents. Keep the teeth of the
blade correctly sharpened. Follow the instructions in
8
To sharpen the grass knife and grass blade on page
22 and use the recommended file gauge.
• Examine the cutting attachment for damage and
cracks. Replace the damaged cutting attachment.
• Only use cutting attachments with recommended
Accessories on page 25 .
guards. See
Saw blade and grass blade
• Use correctly sharpened blades. An incorrectly
sharpened or damaged blade increases the risk of
injury.
• Use correctly set blades. Correct blade set is 1 mm.
An incorrectly set blade increases the risk of injury
and damage.
• To sharpen and set the blade correctly, refer to the
instructions that come with the blade.
Trimmer head
WARNING: Always make sure the trimmer
line is wound tightly and evenly around the
drum to prevent harmful vibration.
• Only use recommended trimmer heads and trimmer
lines.
• Only use recommended cutting attachments.
• Smaller machines requires small trimmer heads and
vice versa.
• The length of the trimmer line is important. A longer
trimmer line requires greater engine power than a
shorter trimmer line of the same diameter.
• Make sure that the cutter on the trimmer guard is
intact. This cuts the trimmer line to the correct
length.
• Soak the trimmer line in water for a couple of days
before use to increase the life length.
Safety instructions for maintenance
WARNING: Read the warning instructions
that follow before you use the product.
• Stop the engine, make sure that the cutting
attachment stops. Remove the cylinder cover and
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