Husqvarna 3120 XP Owner's Manual page 14

1 Undo the bar nuts that
hold the clutch cover and
chain brake, using the
combination spanner.
Then tighten the nuts by
hand as tight as you can.
2 Raise the tip of the bar
and stretch the chain by
tightening the chain
tensioning screw using
the combination spanner.
Tighten the chain until it
not hang slack on the
underside of the bar.
3 Use the combination
spanner to tighten the bar
nuts while lifting the tip of
the bar at the same time.
Check that you can pull
the chain round freely by
hand and that it is not
slack on the bottom of the
bar.
The position of the chain tensioning screw varies from
model to model. See the " What is what" section to find out
where it is on your saw.
14
– English
SAFETY INSTRUCTIONS
4 Lubricating cutting equipment
Poor lubrication of cutting equipment may
cause the chain to snap and lead to serious,
even fatal injuries.
A Chain oil
• Chainsaw chain oil must demonstrate good adhesion to the
chain and also maintain its flow caracteristics regardless of
whether it is warm summer or cold winter weather.
• As a chainsaw manufacturer we have developed an optimal
chain oil which has a vegetable oil base. We recommend the
use of our own oil for both maximum chain life and to
minimise environmental damage.
• If our own chain oil is not available, standard chain oil is
recommended.
• In areas where oil specifically for lubrication of saw chains is
unavailable, ordinary EP 90 transmission oil may be used.
• Never use waste oil!
This is dangerous for yourself, the saw and the environment.
B Filling with chain oil
• All our chain saws have an
automatic chain lubrication
system. On some models
the oil flow is also
adjustable.
• The sizes of the chain oil
tank and fuel tank have
been chosen so that the
saw will run out of fuel
before running out of oil.
This means that you should
never run with a dry chain.
However, this safety feature
requires that you use the
right sort of chain oil (if the
oil is too thin it will run out
before the fuel), and that
you adjust the carburetor as
recommended (a weak
mixture may mean that the
fuel lasts longer than the
oil). You should also use the
recommended cutting
equipment (a bar that is too
long will use more chain oil).
The above conditions also
apply to models with an
adjustable oil pump.