Husqvarna 122HD45 Operator's Manual page 12

3. Turn the idle adjustment screw T clockwise until the
cutting unit starts to move.
4. Turn the idle adjustment screw counterclockwise
until the cutting unit stops.
WARNING:
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 15 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 (A), the cylinder cover (B) and the air intake
through the crankcase (C).
B
A
CAUTION:
The air intake between the
fuel tank and crankcase, is easily blocked by
leaves. Clean the air intake fully.
12
1. Clean the cooling system with a brush weekly or
2. Make sure that the cooling system is not dirty or
To examine the spark plug
If the cutting unit does
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Technical
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C
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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).
more frequently if it is necessary.
blocked.
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:
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 15 .
Replace the spark plug if it is necessary.
Technical data
994 - 008 - 30.01.2021