Cutting Equipment; Safety Instructions; Specification Of Blade And Chain; Guide Bar - Husqvarna 91VG Manuel D'utilisation

Cutting equipment

This section describes how through correct maintenance and
through using the right type of cutting equipment you can:
• Obtain maximum cutting capacity.
• Increase the service life of the cutting equipment.
1 Check the cutting
equipment with regard to
damage and crack
formation. Damaged
cutting equipment should
always be replaced.
2 Only use cutting
equipment recommended
by us! See the "Technical
data" section.
3 Keep the chain cutting
teeth properly sharpened!
Follow our instructions
and use the recommended
file gauge. A damaged or
badly sharpened chain
increases the risk of
accidents.
4 Maintain the correct raker
clearance! Follow our
instructions and use the
recommended raker gauge.
Too large a clearance
increases the risk of
kickback.
5 Keep the chain properly
tesioned! If the chain is
slack it is more likely to
jump off and lead to
increased wear on the bar,
chain and drive sprocket.
6 Keep cutting equipment
well lubricated and
properly maintained! A
poorly lubricated chain is
more likely to break and
lead to increased wear on
the bar, chain and drive
sprocket.
4
– English

SAFETY INSTRUCTIONS

!
WARNING!
Never use a machine with defective
safety equipment. The safety equipment
should be maintained as described in this
section. If your machine does not meet
any of these controls you should contact
your service workshop.
!
WARNING!
Always stop the engine before carrying out
any work on the cutting equipment. This
will continue to move even after the throttle
has been released. Make sure the cutting
equipment has stopped completely and
disconnect the HT lead from the spark plug
before you start work on it.

Specification of blade and chain

When the cutting equipment supplied with your machine
becomes worn or damaged, you will need to replace it. Use
only the manufacturer approved bar and chain.

Guide bar

• Length (inches/cm)
• Number of teeth on bar
tip sprocket (T).
Small number = small tip
radius = low kickback
• Chain pitch (inches)
The spacing between the
drive links of the chain
must match the spacing of
the teeth on the bar tip
sprocket and drive
sprocket.
• Number of drive links
The number of drive links
is determined by the
length of the bar, the
chain pitch and the
number of teeth on the
bar tip sprocket.
• Bar groove width (inches/
mm)
The groove in the bar
must match the width of
the chain drive links.
• Saw chain oil hole and
hole for chain tensioner.