Husqvarna 524LK Operator's Manual page 17

b) Clean the spark arrester screen if it is blocked.
Clean weekly if your product has a catalytic
converter. Clean monthly if your product does not
have a catalytic converter.
CAUTION: A blocked spark arrester
screen causes the engine to become too
hot which causes damage to the engine.
CAUTION: If the spark arrester screen is
frequently blocked, it can be a sign that
performance of the catalytic converter is
decreased. Speak to your servicing dealer to
examine the muffler. A blocked spark
arrester screen causes overheating and
results in damage to the cylinder and piston.
To clean the cooling system
The parts of the cooling system are the air intake on the
starter (A), the fins on the flywheel (B), the cooling fins
on the cylinder (C) and the cylinder cover (D).
D
A
1. Clean the cooling system with a brush weekly or
more frequently if it is necessary.
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION: A dirty or blocked cooling
system can make the product too hot,
which can cause damage to the product.
1309 - 001 - 08.07.2020
To examine the spark plug
• 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 20 .
• Replace the spark plug if it is necessary.
To apply grease to the two-piece shaft
• Apply grease to the end of the drive shaft after each
30 hours of operation.
C
B
To clean the air filter
CAUTION: Always use the recommended
spark plug type. Incorrect spark plug type
can cause damage to the product.
CAUTION: An air filter that is damaged, very
dirty or soaked with fuel must always be
replaced.
Technical data
17