Husqvarna K 770 Operator's Manual page 11

The blade guard (A) and SmartGuard (B) are installed
above the cutting blade (C). They prevent injury if pieces
of the blade or cut material are thrown in the direction of
the operator.
The SmartGuard is spring loaded and must always
move freely and retract to its initial position by spring
force.
To examine the blade and the blade guard
WARNING: A damaged cutting blade can
cause injury.
1. Make sure that the cutting blade is attached correctly
and does not show signs of damage.
2. Make sure that the blade guard has no cracks or is
damaged.
3. Replace the blade guard if it is damaged.
To do a check of the SmartGuard
WARNING: A damaged SmartGuard can
cause injury.
1. Make sure that the SmartGuard has no cracks or is
not damaged.
2. Make sure that the SmartGuard moves freely and
retracts by spring force.
1447 - 001 - 16.04.2020
A
B
C
3. Clean or replace the SmartGuard if it does not
retract immediately when pushed in, or is damaged.
Vibration damping system
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.
To do a check of the vibration damping system
WARNING: Make sure that the engine 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: The muffler becomes very hot
during and after use and when the engine
operates at idle speed. Be careful near
flammable materials and/or fumes to prevent
fire.
To do a check of the muffler
• Examine the muffler regularly to make sure that it is
attached correctly and not damaged.
Fuel safety
WARNING: Read the warning instructions
that follow before you use the product.
• Fuel is flammable and the fumes are explosive. Be
careful with fuel to prevent injury, fire and explosion.
• Only refuel the product outdoors, where the airflow is
sufficient. Do not breathe in the fuel fumes. The fuel
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