Husqvarna 128PS Operator's Manual page 21

• Increased wear to engine parts.
• Too much fuel consumption.
To clean the air filter
1. Remove the air filter cover and remove the filter.
2. Hit the filter against a flat surface to make the
particles fall off.
CAUTION:
or compressed air to clean the air
filter.
3. Put the air filter back. Make sure that the air filter
fully seals against the air filter holder.
4. Put the air filter cover back.
Note:
An air filter that is used for a long time
cannot be fully cleaned. Replace the air filter at
regular intervals. Always replace a damaged air
filter.
To do a check of the spark plug
CAUTION:
spark plug. Refer to
page 23 . An incorrect spark plug can
cause damage to the product.
1. If the product is not easy to start or to operate or
if the product operates incorrectly at idle speed,
examine the spark plug for unwanted materials.
To decrease the risk of unwanted material on the
spark plug electrodes, do these steps:
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.
2. Clean the spark plug if it is dirty.
3. Make sure that the electrode gap is correct.
Technical data on page 23 .
Refer to,
4. Replace the spark plug monthly or more
frequently if necessary.
To clean the cooling system
CAUTION:
cooling system can make the product
too hot, which can cause damage to the
product.
1780 - 001 - 08.02.2022
Do not use solvent
Use the recommended
Technical data on
A dirty or blocked
The parts of the cooling system are the air intake on
the starter (A), the cooling fins on the cylinder (B)
and the cylinder cover (C).
1. Clean the cooling system with a brush weekly or
more frequently if it is necessary.
A
2. Make sure that the cooling system is not dirty or
blocked.
To adjust the idle speed
Your Husqvarna product is made to specifications
that decrease harmful emissions.
1. Make sure that the air filter is clean and that the
air filter cover is attached to the product.
2. Turn the idle speed screw (T) clockwise until the
cutting attachment starts to turn.
3. Turn the idle speed screw (T) counterclockwise
until the cutting attachment stops.
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.
Note:
Technical data on page 23 for the
Refer to
recommended idle speed.
WARNING:
attachment does not stop when you
adjust the idle speed, speak to your
servicing dealer. Do not use the product
until it is correctly adjusted or repaired.
B
C
If the cutting
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