Husqvarna 120 Manual De Usuario página 21

2. Make sure that the front hand guard moves freely
and that it is attached safely to the clutch cover. (Fig.
85)
3. Hold the product with 2 hands above a stump or
other stable surface.
WARNING:
4. Let go of the front handle and let the guide bar tip fall
against the stump. (Fig. 86)
5. Make sure that the chain brake engages as the
guide bar tip hits the stump.
To do a check of the chain brake
1. Start the product. Refer to
page 15 for instructions.
WARNING:
chain does not touch the ground or other
objects.
2. Hold the product tightly.
3. Apply full throttle and tilt your left wrist against the
front hand guard to engage the chain brake. The
saw chain must stop immediately. (Fig. 87)
WARNING:
handle.
To do a check of the throttle trigger and
throttle trigger lockout
1. Make sure that the throttle trigger and throttle trigger
lockout move freely and that the return spring works
correctly. (Fig. 46)
2. Press down the throttle trigger lockout and make
sure that it goes back to its initial position when you
release it. (Fig. 88)
3. Make sure that the throttle trigger is locked at the
idle position when the throttle trigger lockout is
released. (Fig. 89)
4. Start the product and apply full throttle.
5. Release the throttle trigger and make sure that the
saw chain stops and stays stationary.
WARNING:
when the throttle trigger is in the idle
position, speak to your servicing dealer.
To do a check of the chain catcher
1. Make sure that there is no damage on the chain
catcher.
2. Make sure that the chain catcher is stable and
attached to the body of the product. (Fig. 26)
930 - 007 - 06.03.2023
The engine must be off.
To start the product on
Make sure that the saw
Do not let go of the front
If the saw chain rotates
To do a check of the right hand guard
• Make sure that the right hand guard does not have
damages such as cracks. (Fig. 27)
To do a check of the vibration damping system
1. Make sure that there are no cracks or deformation
on the vibration damping units.
2. Make sure that the vibration damping units are
correctly attached to the engine unit and handle unit.
Product overview on page 8 for information
Refer to
about where the vibration damping system is on your
product.
To do a check of the start/stop switch
1. Start the engine.
2. Push the start/stop switch to the STOP position. The
engine must stop. (Fig. 28)
To do a check of the muffler
WARNING:
has a damaged muffler or a muffler that is in
bad condition.
WARNING:
the spark arrestor mesh on the muffler is
missing or damaged.
1. Examine the muffler for damages.
2. Make sure that the muffler is correctly attached to
the product. (Fig. 90)
3. If your product has a special spark arrestor mesh,
clean the spark arrestor mesh weekly. (Fig. 91)
4. Replace a damaged spark arrestor mesh.
CAUTION:
is blocked, the product becomes too hot
and this causes damage to the cylinder and
piston.
To adjust the idle speed screw (T)
The basic carburetor adjustments are done at the
factory. You can adjust the idle speed but for more
adjustments, refer to your servicing dealer.
To give the components of the engine sufficient
lubrication during run-in, adjust the idle speed. Adjust
the idle speed to the recommended idle speed. Refer to
Technical data on page 27 .
CAUTION:
at idle speed, turn the idle speed screw
counterclockwise until the saw chain stops.
1. Start the product.
Do not use a product that
Do not use a product if
If the spark arrestor mesh
If the saw chain rotates
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