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To do a check of the battery charger
1. Make sure that the battery charger and the power
supply cord is not damaged. Look for cracks and
other defects.
To clean the cooling system
The product has a cooling system that keeps the
temperature of the product as low as possible.
The cooling system includes an air intake on the left side
of the product and a fan on the motor.
1. Clean the cooling system with a brush weekly or
more frequently if necessary.
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION: A dirty or blocked cooling
system can cause the product to
become too hot. This causes damage to
the piston and cylinder.
To sharpen the saw chain
Information about the guide bar and saw chain
Replace a worn or damaged guide bar or saw chain with
the guide bar and saw chain combinations
recommended by Husqvarna. This is important in order
to keep the safety functions of the cutting equipment.
See
Accessories on page 29 , for a list of replacement
bar and chain combinations that we recommend.
423 - 002 - 01.03.2018
•
Length, in/cm.
•
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 length of the bar, the chain pitch and
the number of teeth on the bar tip sprocket.
•
Bar groove width, in/mm. The groove in the guide
bar must align with the width of the chain drive links.
L
D
PITCH =
2
21
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