Tensioning The Saw Chain; Lubricating Cutting Equipment - Husqvarna 91VG Manuel D'utilisation

D. Adjusting raker clearance
• When correction of the
raker clearance is made
the teeth must be newly
sharpened.
We recommend that you
adjust the raker clearance
every third time you
sharpen the chain.
NOTE! This
recommendation assumes
that the length of the
cutting teeth is not
reduced excessively.
• A FLAT FILE and an
RAKER CLEARANCE
GAUGE are required to
correct the raker
clearance.
• Place the gauge over the
raker lip.
• Place the file over the part
of the lip that protrudes
through the gauge and file
off the excess. The
clearance is correct when
you no longer feel any
resistance as you draw the
file over the gauge.

Tensioning the saw chain

!
WARNING!
A slack chain may jump off and cause
serious or even fatal injury.
• The more you use a chain
the longer it becomes. It is
therefore important to
adjust the chain regularly
to take up the slack.
• Check the chain tension
every time you refuel.
NOTE! A new chain has a
running-in period during
which you should check
and adjust the chain
tension more frequently.
• As a rule the chain should
be tensioned as tightly as
possible, but not so tight
that you cannot pull it
round freely by hand.
SAFETY INSTRUCTIONS
1. Undo the bar nut.
2. Tension the chain by
turning the chain
tensioning screw
clockwise using the
combination spanner.
Tighten the chain until
it no longer hangs slack
beneath the bar.
3. Use the combination
spanner to tighten the
blade nut while lifting
the tip of the bar at the
same time. Check that
you can pull the chain
round freely by hand.

Lubricating cutting equipment

!
WARNING!
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 chain saw manufacturer we have developed an ideal saw
chain oil that is vegetable-based. 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
The oil pump is preset at
the factory to meet most
lubrication requirements
and a full oil tank will last
about half as long as a tank
of fuel. You should therefore
check the level in the oil
tank regularly to avoid
damaging the chain and bar
by running out of oil.
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