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Husqvarna LC 451S Manual

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Safety devices on the product
WARNING: Read the warning instructions
that follow before you use the product.
• Do not use a product with defective safety devices.
• Do a check of the safety devices regularly. If the
safety devices are defective, speak to your
Husqvarna service agent.
To do a check of the cutting cover
The cutting cover decreases vibrations in the product
and decreases the risk of injury from the blade.
• Examine the cutting cover to make sure that there
are no damages such as cracks.
To do a check of the engine brake handle LC 451S,
LC 451V, LC 551SP
The engine brake handle stops the engine. When the
engine brake handle is released, the engine stops.
• Start the engine and then release the engine brake
handle. If the engine does not stop in 3 seconds, let
an approved Husqvarna service agent adjust the
engine brake. (Fig. 27)
To do a check of the blade brake control and the start
inhibitor (LC 551VBP)
The blade brake control stops the blade only and not the
engine. When the blade brake control is released, the
blade stops.
1. Start the engine.
2. Push the blade brake control in the direction of the
handlebar. The start inhibitor stops the movement.
3. Push the start inhibitor out.
4. Push the blade brake control in the direction of the
handlebar. The blade starts to rotate.
5. Release the blade brake control. If the blade does
not stop in 3 seconds, let an approved Husqvarna
service agent adjust the blade brake. (Fig. 28)
6. Make sure that the start inhibitor goes back to its
initial position.
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.
• 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.
• 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 soap and water to
remove the fuel.
• 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 fully. If the fuel tank cap is
not tightened, there is a risk of fire.
• Move the product a minimum of 3 m / 10 ft from the
position where you filled the tank before a start.
• Do not fill the fuel tank fully. Heat causes the fuel to
expand. Keep a space at the top of the fuel tank.
Safety instructions for maintenance
WARNING:
Read the warning instructions
that follow before you use the product.
• The exhaust fumes from the engine contain carbon
monoxide, an odourless, poisonous and very
dangerous gas. Do not start the engine indoors or in
closed spaces.
• Before you do the maintenance on the product, stop
the engine and remove the ignition cable from the
spark plug.
• Use protective gloves when you do maintenance on
the cutting equipment. The blade is very sharp and
cuts can easily occur.
• Accessories and changes to the product that are not
approved by the manufacturer, can cause serious
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