To Clean The Cooling System; To Clean The Air Filter; To Examine The Spark Plug; To Apply Oil To The Air Filter - Husqvarna 522HS75S Manual Del Usuario

4. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
WARNING: If the cutting 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: The air intake between the 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.

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:
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.
906 - 002 - 19.03.2019
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
on page 13 .
Technical
• 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.
Note: An air filter that is used for a long time can not
be fully cleaned. Replace the air filter regularly and
always replace a defective air filter.
5. Make sure that the foam filter (B) is dry.
6. Apply air filter oil to the foam filter (B). Refer to
apply oil to the air filter on page 11
7. Clean the inner surface of the air filter cover (A). Use
compressed air or a brush.

To apply oil to the air filter

Technical data
C
B
CAUTION: Always use Husqvarna special
air-filter oil. Do not use other types of oil.
To
11