Husqvarna 533RS Operator's Manual page 56

To examine the spark plug
CAUTION:
recommended spark plug type. Incorrect
spark plug type can cause damage to the
product.
• Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
• To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
a) Make sure that the idle speed is correctly
adjusted.
b) Make sure that the fuel mixture is correct.
c) Make sure that the air filter is clean.
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
on page 58 .
• Replace the spark plug if it is necessary.
To sharpen grass cutters and grass
blades
• Sharpen all edges of the grass cutters and blades
equally to keep the balance. Use a single-cut flat file.
To sharpen the saw blade
WARNING:
protective gloves.
56
Always use the
Technical data
Stop the engine. Use
• To sharpen the blade correctly, refer to the
instructions that come with the blade.
• Make sure that the product and blade has sufficient
support when you sharpen it.
• Use a 5.5 mm (7/32 in) round file with a file holder.
• Hold the file at an angle of 15°.
• Sharpen one tooth of the saw blade to the right and
the next tooth to the left, see the illustration.
Note:
Sharpen the edges of the teeth with a flat
file if the blade is heavily worn. Continue to sharpen
with a round file.
• Sharpen all edges equally to keep the blade
balanced.
15˚
1756 - 001 - 08.06.2022