Grass Blades And Grass Cutters; Blade Thrust; Fuel Safety; Safety Instructions For Maintenance - Husqvarna 331R Manual De Usuario

• Only use recommended cutting attachments.
• Smaller machines requires small trimmer heads and
vice versa.
• The length of the trimmer line is important. A longer
trimmer line requires greater engine power than a
shorter trimmer line of the same diameter.
• Make sure that the cutter on the trimmer guard is
intact. This cuts the trimmer line to the correct
length.
• Soak the trimmer line in water for a couple of days
before use to increase the life length.

Grass blades and grass cutters

• Use the product with an approved grass blade. Do
not use a grass blade without proper installation of
all required parts. Make sure that the installation is
done correctly and that the proper parts are used.
Inproper installation may cause the blade to fly off
and seriously injure the operator or the bystanders.
• Wear protective gloves when you handle or do
maintenance on the blade.
• Use head protection when you operate a product
with a grass blade.
• Grass blades and grass cutters are used to cut
rough grass.
• A grass blade can cause injury while it continues to
spin after the engine is stopped or the throttle trigger
is released. Make sure that the grass blade has
completely stopped rotating before any
maintenance.
• Stop the engine before you do work on the cutting
attachment. Make sure the cutting attachment fully
stops. Disconnect the lead from the spark plug.
• Only use an approved cutting attachment or a
correctly sharpened blade.
• Keep the teeth of the blade correctly sharpened.
• Do not use a damaged cutting attachment.
• Attach the transport guard to the grass blade when
you transport or store the product.

Blade thrust

• A blade thrust is a sudden movement of the product
to the side, forward or rearward. A blade thrust
occurs when the grass blade hits an object that
cannot be cut. In areas where it is not easy to see
the material being cut the risk of blade thrust
increases.
• When a blade thrust occurs, there is a risk that the
product or the operator moves out of position. A
blade that moves can hit bystanders and there is a
risk of injuries.
• If a blade is bent, has cracks, is broken or damaged,
discard the blade.
• Use a sharp blade. The risk of blade thrust increases
when a blade is not sharp.
8

Fuel safety

• Do not start the product if there is fuel or engine oil
on the product. Remove the unwanted fuel/oil and let
the product dry. Remove unwanted fuel from the
product.
• If you spill fuel on your clothing, change clothing
immediately.
• Do not get fuel on your body, it can cause injury. If
you get fuel on your body, use a soap and water to
remove the fuel.
• Do not start the engine if you spill oil or fuel on the
product or on your body.
• Do not start the product if the engine has a leak.
Examine the engine for leaks regularly.
• Be careful with fuel. Fuel is flammable and the fumes
are explosive and can cause injuries or death.
• Do not breathe in the fuel fumes, it can cause injury.
Make sure that there is a sufficient airflow.
• Do not smoke near the fuel or the engine.
• Do not put warm objects near the fuel or the engine.
• Do not add the fuel when the engine is on.
• Make sure that the engine is cool before you refuel.
• Before you refuel, open the fuel tank cap slowly and
release the pressure carefully.
• Do not add fuel to the engine in an indoor area. Not
sufficient airflow can cause injury or death because
of asphyxiation or carbon monoxide.
• Tighten the fuel tank cap carefully or a fire can
occur.
• Move the product at a minimum of 3 m (10 ft) from
the position where you filled the tank before a start.
• Do not put too much fuel in the fuel tank.
• Make sure that a leak cannot occur when you move
the product or fuel container.
• Do not put the product or a fuel container where
there is an open flame, spark or pilot light. Make
sure that the storage area does not contain an open
flame.
• Only use approved containers when you move the
fuel or put the fuel into storage.
• Empty the fuel tank before long-term storage. Obey
the local law on where to dispose fuel.
• Clean the product before long-term storage.
• Remove the spark plug cable before you put the
product into storage to make sure that the engine
does not start accidentally.

Safety instructions for maintenance

• If you cannot adjust the idle speed to make the
cutting attachment stop, speak to your service
center. Do not use the product until the product is
correctly adjusted or repaired.
1158 - 005 - 26.03.2020