Husqvarna 525DEPS Operator's Manual page 18

The idle speed is correct when the engine operates
smoothly in all positions. The idle speed must be
below the speed when the saw chain starts to turn.
WARNING:
not stop when you adjust the idle speed,
turn to your nearest servicing dealer. Do
not use the product until it is correctly
adjusted or repaired.
Note:
Technical data on page 25 for the
Refer to
recommended idle speed.
To do maintenance on the muffler
The muffler decreases the noise level and directs the
exhaust gases away from the operator.
WARNING:
catalytic converters get very hot during
operation and will stay hot for some time
after you stop the product. This also
applies at idle speed. If you touch the
product it can result in burns to the skin.
Think about of the risk of fire.
1. Stop the product and let it cool down.
2. Remove the cover to the muffler.
3. Remove the screw holding the spark arrestor
mesh.
4. Clean the spark arrestor mesh if it is blocked or
replace it if it is damaged.
CAUTION:
must be replaced if it is damaged. Do not
use a product if the spark arrestor mesh
on the muffler is missing or defective.
18
If the saw chain does
Mufflers that have
The spark arrestor mesh
CAUTION:
mesh is frequently blocked it can be a
sign that performance of the catalytic
converter is decreased. Turn to your
servicing dealer to examine the muffler.
A blocked spark arrestor mesh will cause
overheating and result in damage to the
cylinder and piston.
Cooling system
The product has a cooling system to keep the
operation temperature as low as possible.
Clean the components of the cooling system with a
brush weekly or more frequently in rougher
conditions. A dirty or blocked cooling system makes
the product too hot which causes damage to the
piston and cylinder.
The cooling system has the following components:
1. Air intake on the starter.
2. Fins on the flywheel.
3. Cooling fins on the cylinder.
4. Cylinder cover.
5. Muffler cover.
6. Muffler plate.
3
1
To examine the spark plug
CAUTION:
recommended spark plug type, refer to
Technical data on page 25 . 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 arrestor
4
2
6
5
Always use the
1480 - 007 - 15.02.2021