Husqvarna K 770 Dry Cut Manuel D'utilisation page 44

4. Make sure that the blade guard can be pushed in
and return instantly by spring force.
5. Replace the cutting blade and the blade guard if they
are damaged. Replace the blade guard extender, the
dust shield or their springs if they are defected and
not returning instantly when pushed in.
Vibration damping system
WARNING:
can lead to circulatory damage or nerve
damage in people who have impaired
circulation. Contact your doctor if you
experience symptoms of overexposure
to vibration. Such symptoms include
numbness, loss of feeling, tingling, pricking,
pain, loss of strength, changes in skin
color or condition. These symptoms normally
appear in the fingers, hands or wrists.
These symptoms may be increased in cold
temperatures.
Your product is equipped with a vibration damping
system that is designed to minimize vibration and
make operation easier. The product's vibration damping
system reduces the transfer of vibration between the
engine unit/cutting equipment and the product's handle
unit.
Cutting granite or hard concrete creates more vibration
than cutting soft concrete. Cutting with cutting
equipment that is blunt or faulty (wrong type or badly
sharpened) will increase the vibration level.
44
Overexposure to vibration
To do a check of the vibration damping system
WARNING:
is off and that the stop switch is in STOP
position.
1. Make sure that there are no cracks or deformation
on the vibration damping units. Replace the vibration
damping units if they are damaged.
2. Make sure that the vibration damping units are
correctly attached to the engine unit and handle unit.
Muffler
The muffler keeps the noise levels to a minimum and
sends the exhaust fumes away from the operator.
Do not use the product if the muffler is missing or
defective. A defective muffler increases the noise level
and the risk of fire.
WARNING:
during and after use. This also applies
during idling. Be aware of the fire hazard,
especially when working near flammable
substances and/or vapours.
To examine the muffler
1. Make sure that the muffler is not damaged.
2. Make sure that the muffler is correctly attached.
Kickback
WARNING:
can be very violent. The power cutter can be
thrown up and back towards the user in a
rotating motion causing serious or even fatal
injury. It is vital to understand what causes
kickback and how to avoid it before using
the product.
Kickback is the sudden upward motion that can occur
if the blade is pinched or stalled in the kickback
zone. Most kickbacks are small and pose little danger.
However a kickback can also be very violent and throw
Make sure that the engine
The muffler gets very hot
Kickbacks are sudden and
861 - 005 - 22.04.2022