Cooling System - Husqvarna 535FBX Manuel D'utilisation

2. Make sure that the muffler is correctly attached to
the product.
3. If your product has a special spark arrester screen,
clean the spark arrester screen weekly.
4. Replace a damaged spark arrester screen.
CAUTION: If the spark arrester screen is
blocked, the product becomes too hot and
this causes 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. Cooling fins on the cylinder.
3. Cylinder cover.
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2
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.
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
535FBX on page 30 .
• Replace the spark plug if it is necessary.
To lubricate the drive shaft
1. Pull up the knob and remove the drive shaft sleeve
from the clutch cover.
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1
Technical data
1301 - 004 - 30.01.2021