3. Attach the air filter and make sure that the air filter
seals tightly against the filter holder.
Note Because of different work conditions, weather or
season, your product can be used with different types of
air filter. Speak to your servicing dealer for more
information.
To do a check of the spark plug
CAUTION Use the recommended spark
plug. Refer to
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 fuel mixture is correct.
b) 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 0.5 mm/0.020 in.
4. Replace the spark plug monthly or more frequently if
necessary.
26
# . An incorrect spark plug can
To sharpen the saw chain
Information about the guide bar and saw chain
WARNING Use protective gloves when you
use or do maintenance on the saw chain. A
saw chain that does not move can also
cause injuries.
Replace a worn or damaged guide bar or saw chain with
the guide bar and saw chain combination recommended
by Husqvarna. This is necessary to keep the safety
functions of the product. Refer to
34 , for a list of replacement bar and chain
combinations that we recommend.
•
Guide bar length, in/cm. Information about the guide
bar length can usually be found on the rear end of
the guide bar.
•
Number of teeth on bar tip sprocket (T).
•
Chain pitch, in. The distance between the drive links
of the saw chain must align with the distance of the
teeth on the bar tip sprocket and drive sprocket.
D
•
Number of drive links. The number of drive links is
decided by the type of guide bar.
Accessories on page
D
PITCH =
2
140 - 005 - 18.09.2019