To Do Maintenance On The Trimmer Head; Cooling System; To Examine The Spark Plug - Husqvarna 535LK Manual Del Usuario

1. Examine if your product has a catalytic converter.
Technical data on page 20 .
See
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!
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.
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
and result in damage to the cylinder and
piston.
CAUTION: The spark arrestor screen must
be replaced if it is damaged. Do not use a
16
product if the spark arrestor screen on the
muffler is missing or defective.
To do maintenance on the trimmer
head
1. Only use the recommended cutting attachment and
cutting attachment guard. See,
21 .
2. Make sure that the cutter on the cutting attachment
guard is not damaged, it cuts the cord to the correct length.
3. Install the cord as the illustrations on the last pages
of the manual shows.

Cooling system

The product has a cooling system to keep the operation
temperature as low as possible.
Clean the components of the cooling system with a
brush weekly or more frequently in rougher conditions. A
dirty or blocked cooling system makes the product too
hot which causes damage to the piston and cylinder.
The cooling system has the following components:
1. Air intake on the starter.
2. Fins on the flywheel.
3. Cooling fins on the cylinder.
4. Cylinder cover (directs cool air over the cylinder).
5. Muffler cover.
6. Muffler plate.
3

To examine the spark plug

CAUTION: Always use the 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:
Accessories on page
4
2
1
6
331 - 003 -
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