Husqvarna 225i Operator's Manual page 36

To do a check of the chain catcher
1. Make sure that there is no damage on the chain
catcher.
2. Make sure that the chain catcher is stable and
attached to the body of the product. (Fig. 115)
To do a check of the functions of the user
interface
1. Start the product. Refer to
page 31 .
2. Push and hold the start/stop button.
3. Make sure that the product stops and that the green
LED goes off. (Fig. 66)
To do a check of the battery and the
battery holder
1. Clean the battery and the battery holder with a soft
brush.
2. Clean the cooling slots and battery connectors. (Fig.
116)
3. Make sure that the battery has no cracks or other
damages.
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 damages. (Fig. 117)
To clean the cooling system
The cooling system keeps the motor temperature down.
The cooling system includes the 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 it is necessary. (Fig. 118)
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION:
cooling system can cause the product to
become too hot. This causes damage to
the product.
To sharpen the saw chain
Information about the guide bar and saw chain
WARNING:
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
36
To start the product on
A dirty or blocked
Use protective gloves
Accessories on
page 42 , 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.
(Fig. 119)
• Number of teeth on bar tip sprocket (T).
(Fig. 120)
• 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.
(Fig. 121)
• Number of drive links. The number of drive links is
decided by the type of guide bar.
(Fig. 122)
• Bar groove width, in/mm. The groove width in guide
bar must be the same as the chain drive links width.
(Fig. 123)
• Chain oil hole and hole for chain tensioner. The
guide bar must align with product.
(Fig. 124)
• Drive link width, mm/in.
(Fig. 125)
General information about how to sharpen the
cutters
Do not use a blunt saw chain. If the saw chain is blunt,
you must apply more pressure to push the guide bar
through the wood. If the saw chain is very blunt, there
will be no wood chips but sawdust.
A sharp saw chain eats through the wood and the wood
chips becomes long and thick.
The cutting tooth (A) and the depth gauge (B) together
makes the cutting part of the saw chain, the cutter. The
difference in height between the two gives the cutting
depth (depth gauge setting).
(Fig. 126)
When you sharpen the cutter, think about the following:
• Filing angle.
(Fig. 127)
• Cutting angle.
(Fig. 128)
• File position.
(Fig. 129)
• Round file diameter.
(Fig. 130)
It is not easy to sharpen a saw chain correctly without
the correct equipment. Use a Husqvarna recommended
file gauge. This will help you to keep maximum cutting
performance and the kickback risk at a minimum.
1860 - 007 - 09.01.2024