Maintenance; To Adjust The Idle Speed; To Do Maintenance On The Muffler - Husqvarna 535LK Manual Del Usuario

of the trimmer head and clean it if
necessary.

To adjust the idle speed

Your Husqvarna product is designed and made to
specifications that decrease harmful emissions.
• Make sure that the air filter is clean and the air filter
cover is attached before you adjust the idle speed.
• Adjust the idle speed with the idle adjustment screw
T which is identified with "T" mark.
WARNING: If the cutting attachment
does not stop when you adjust the idle
speed, turn to your nearest servicing
dealer. Do not use the product until it is
correctly adjusted or repaired.
• The idle speed is correct when the engine operates
smoothly in all positions. The idle speed must be
below the speed when the cutting attachment starts
to turn.
1. Turn the idle adjustment screw clockwise until the
cutting attachment starts to turn.
2. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
Note: See Technical data on page 19 for the
recommended idle speed.

To do maintenance on the muffler

WARNING: The muffler is designed to
decrease the noise level and to point the
exhaust gases away from the operator. The
exhaust gases are hot and can contain
sparks, which can cause fire if pointed
against dry and flammable material.
331 - 008 - 24.04.2020

Maintenance

1. Examine if your product has a catalytic converter.
Technical data on page 19 .
See
2. Some mufflers have a special spark arrester screen.
Clean the spark arrestor screen with a wire brush if
your product has this type of muffler. Clean the spark
arrestor screen weekly on mufflers without a catalytic
converter and on mufflers with a catalytic converter
this must be done monthly. Replace the spark
arrestor screen if it is damaged and do not use a
product with a damaged spark arrestor screen.
WARNING: Mufflers that have catalytic
converters get very hot during operation
and will stay hot for some time after you
stop the product. This also applies at idle
speed. If you touch the product it can
result in burns to the skin. Think about of
the risk of fire!
CAUTION: If the spark arrestor screen is
frequently blocked it can be a sign that
performance of the catalytic converter is
decreased. Turn to your servicing dealer
to examine the muffler. A blocked spark
arrestor screen will cause overheating
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