Husqvarna 128PS Operator's Manual page 20

1. Use a flat file and a depth gauge tool to adjust
the depth gauge setting. Only use Husqvarna
depth gauge tool to get the correct depth gauge
setting and bevel for the depth gauge.
2. Put the depth gauge tool on the saw chain.
Note:
See the package of the depth gauge tool
for more information about how to use the tool.
3. Use the flat file to remove the part of the depth
gauge that extends through the depth gauge tool.
To do a check of the guide bar
1. Make sure that the oil channel is not blocked.
Clean if it is necessary.
2. Examine if there are burrs on the edges of the
guide bar. Remove the burrs using a file.
3. Clean the groove in the guide bar.
4. Examine the groove in the guide bar for wear.
Replace the guide bar if it is necessary.
20
5. Examine if the guide bar tip is rough or very
worn.
6. Make sure that the bar tip sprocket turns freely
and that the lubricating hole in the bar tip
sprocket is not blocked. Clean and lubricate if it
is necessary.
7. Turn the guide bar daily to extend its life cycle.
To check the chain lubrication
1. Check the chain lubrication each time you refuel.
Aim the tip of the bar at a light coloured surface
about 20 cm (8 inches) away. After 1 minute
running at 75 % throttle you should see a distinct
line of oil on the light surface.
2. If the saw chain lubrication does not operate
correctly, do a check of the guide bar. Refer to
To do a check of the guide bar on page 20 for
instructions. Speak to your servicing dealer if the
maintenance steps does not help.
Air filter
Remove dust and dirt from the air filter to keep it
clean and prevent these problems:
• Carburetor malfunctions.
• Problems when you start the product.
• Loss of engine power.
1780 - 001 - 08.02.2022