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2. Make sure that the muffler is correctly attached to
the product.
To adjust the idle speed
•
Make sure that the air filter is clean. The cutting
attachment must not rotate in correct idle speed.
•
Adjust the idle speed with the idle adjustment screw
T which is identified with "T" mark.
•
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.
WARNING:
be adjusted so that the cutting attachment
stops, speak to the distributor or the service
center. Do not use the product until it is
correctly adjusted or repaired.
1. Turn the idle adjustment screw clockwise until the
cutting attachment starts to turn.
2. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops. (Fig. 55)
Cooling system
The product has a cooling system to keep the work
temperature low.
The cooling system has:
(Fig. 56)
•
Fins on the flywheel (A)
•
Cooling fins on the cylinder (B)
•
Cylinder cover (C) (directs cold air over the cylinder)
•
Muffler plate (D)
•
Plate (E)
To clean the cooling system
WARNING:
system causes overheating. It causes
damage to the piston and cylinder.
1. Clean the parts of the cooling system with a brush a
minimum of one time a week.
Air filter
•
Clean the filter at intervals of 25 hours. Clean more
regularly if necessary.
•
Set the choke control in the choke position. (Fig. 57)
To clean the air filter
CAUTION:
that is damaged, very dirty or soaked with
fuel.
16
If the idle speed cannot
A dirty or blocked cooling
Always replace an air filter
If you use an air filter for a long time, it cannot be fully
cleaned. Replace the air filter with a new one at regular
intervals.
1. Move the choke lever up, to close the choke valve.
2. Remove the air filter cover. (Fig. 58)
3. Remove the felt filter and the air filter.
4. Hit the palm of your hand lightly with the felt filter or
use air to clean the felt filter.
5. Do a check of the surface of the rubber seal.
Replace the filter on the rubber seal if it is damaged.
6. Clean the air filter with warm soap water.
CAUTION:
felt filter dry. Water causes damage to
the felt filter.
7. Use Husqvarna two-stroke oil to put oil on the filter.
Make sure that you remove excessive oil before you
put the air filter back.
CAUTION:
oil intended for four-stroke engines.
8. Replace the air filter if it is too dirty to fully clean it.
Always replace a damaged air filter.
9. Also clean the inner surface of the filter cover. Use
air or a brush.
10. Make sure that the filter is dry before you assemble
it.
Fuel filter
When the engine runs short of fuel supply, make sure
that the fuel tank cap and the fuel filter (A) is not
blocked.
(Fig. 59)
To add grease to the bevel gear
Make sure that the bevel gear is filled 3/4 full with bevel
gear grease.
(Fig. 60)
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.
Make sure to keep the
Do not use gasoline or
Always use the
1544 - 005 - 03.04.2023
