Cutting Equipment - Husqvarna 445 Operator's Manual

GENERAL SAFETY PRECAUTIONS
Right hand guard
Apart from protecting your hand if the chain jumps or
snaps, the right hand guard stops branches and twigs
from intedering with your grip on the rear handle. (11)
Vibration damping system
Your machine is equipped with a vibration damping
system that is designed to reduce vibration and make
operation easier.
The machine's vibration damping system reduces the
transfer of vibration between the engine unit/cutting
equipment and the machine's handle unit. The body of the
chain saw, including the cutting equipment, is insulated
from the handles by vibration damping units.
Cutting hardwoods (most broadleaf trees) creates more
vibration than cutting softwoods (most conifers). Cutting
with cutting equipment that is blunt or faulty (wrong type
or badly sharpened) will increase the vibration level.
A WARN!NG! Overexp0suretoV_brat_on Can
lead to circulatory damage or nerve
damage in people who have impaired
circulation, Contact your doctor if you
experience symptoms of overexposure to
vibrat!on_ Such Symptoms include
numbness, loSS of feeling, tingling,
pricking, pain, !oss of strength, changes
in skin coloar or condition.These
symptoms normally appear in the fingers,
hands or wrists.These symptoms may be
increased in cold temperatures.
Stop switch
Use the stop switch to switch off the engine. (12)
Muffler
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user.
WARNING!The exhaust fumes from the
engine are hot and may contain sparks
wh ch can start a f re. Never start the
muffler or with a damaged muffler. A
damaged muffler may substantially
increase the noise level and the fire
hazard. Keep fire fighting equipment
handy. If a spark arrestor screen is
required in your area, never use the saw
without or wffh a broken spark arrest °r
screen.
Cutting equipment
This section describes how to choose and maintain your
cutting equipment in order to:
Reduce the risk of kickback.
Reduce the risk of the saw chain breaking or jumping
off the bar.
Obtain optimal cutting performance.
Extend the life of cutting equipment.
Avoid increasing vibration levels.
General rules
Only use cutting equipment recommended by us!
See instructions under the heading Technical data.
Keep the chain's cutting teeth properly
sharpened! Follow our instructions and use the
recommended file gauge. A damaged or badly
sharpened chain increases the risk of accidents.
Maintain the correct depth gauge setting! Follow
our instructions and use the recommended depth
gauge clearance. Too large a clearance increases
the risk of kickback.
Keep the chain properly tensioned! If the chain is
slack it is more likely to jump off and lead to increased
wear on the bar, chain and drive sprocket.
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.
machine indoors or near combustible Cutting equipment designed to reduce
material!
In areas with a hot, dry climate there is a high risk of fires.
These areas are sometimes subject to government rules
requiring among other things the muffler must be
equipped with an approved type of spark arrestor screen.
(13)
When fitting the mesh, make sure that the mesh is
inserted in the right position. If necessary, use the
combination spanner to insert or remove the mesh.
NB! The muffler gets very hot during and after use. This
also applies during idling. Be aware of the fire hazard,
especially when working near flammable substances
and/or vapours.
kickback
_utting equipm_
| J _ _, the wrong combination of bar and saw |
| _ chain increases the risk of kickback! |
| Only use the bar!saw chain c0mbinations |
| we recommend, and follow the filing |
| instructions. See instructions under the |
heading Technical data.
The only way to avoid kickback is to make sure that the
kickback zone of the bar never touches anything.
By using cutting equipment with "built-in" kickback
reduction and keeping the chain sharp and well-
maintained you can reduce the effects of kickback.
14 - English 1154939-49 Rev.1 2012-05-05