Husqvarna 522HS75X Operator's Manual page 11

3. Turn the idle adjustment screw T clockwise until the
cutting attachment starts to move.
4. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
WARNING:
attachment does not stop when you
adjust the idle speed, speak to your
nearest servicing dealer. Do not use the
product until it is correctly adjusted or
repaired.
Note:
The idle speed is correct when the engine
operates smoothly in all positions. Refer to
data on page 13 for the recommended idle speed.
To clean the cooling system
The cooling system keeps the engine temperature
down. The cooling system includes the cooling fins on
the cylinder and the starter housing.
CAUTION:
fuel tank and crankcase is easily blocked by
leaves. Clean the air intake fully.
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.
905 - 002 - 01.07.2022
If the cutting
Technical
The air intake between the
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 13 .
• Replace the spark plug if it is necessary.
To clean the air filter
Clean the air filter regularly from dirt and dust. This
prevents carburetor malfunctions, starting problems,
loss of engine power, wear to engine parts and more
fuel consumption than usual.
1. Remove the air filter cover (A).
2. Remove the foam filter (B) and the felt filter (C) from
the filter frame.
A
3. Replace the felt filter (C).
4. Clean the foam filter (B) with warm soap water.
Always use the
Technical data
C
B
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