Husqvarna 120 Manual Del Usuario página 14

Release the starter rope slowly. If you do
not obey these instructions, it can cause
damage to the engine.
Note:
Do not pull the throttle trigger when you start
the engine.
9. Pull the starter rope handle until the engine starts.
10. Hold the rear handle with your right hand and the
front handle with your left hand.
11. Immediately pull the front hand guard rearward in the
direction of the front handle to disengage the chain
brake.
Note:
12. Wait 10-15 seconds.
13. Pull the throttle trigger lightly to set normal idle.
14. Use the product.
To start the engine when the fuel is too hot
If the product does not start, the fuel can be too hot.
Note:
Always use new fuel and decrease the
operation time during warm weather.
1. Put the product in a cool area away from open
sunlight.
2. Let the product cool down for 20 minutes at
minimum.
3. Press the air purge bulb again and again for 10-15
seconds.
4. Obey the procedure to start a cold engine. Refer to
To start a cold engine on page 13 .
To stop the engine
• Push the stop switch to stop the engine.
Note:
The stop switch automatically goes back to its
initial position.
To fell a tree
1. Remove dirt, stones, loose bark, nails, staples and
wire from the tree.
2. Make a notch 1/3 the diameter of the tree,
perpendicular to the direction of the fall. (Fig. 48)
3. Make the lower horizontal notch cut. This will prevent
either the saw chain or the guide bar from being
pinched when the second notch is made.
14
The chain will move.
4. Make the felling back cut (X) at least 50 mm (2 in)
higher than the horizontal notching cut. Keep the
felling back cut parallel to the horizontal notching cut
so enough wood is left to act as a hinge. Do not cut
through the hinge. The hinge wood keeps the tree
from twisting and falling in the wrong direction. (Fig.
49) (Fig. 50)
5. As the felling back cut nears the hinge, the tree
starts to fall. Make sure that the tree can fall in the
correct direction and not rock rearward and pinch the
saw chain. Stop the cut before the felling back cut
is complete to prevent this. Use wedges of wood,
plastic or aluminium to open the cut and let the tree
fall along the necessary line of fall. (Fig. 51)
6. When the tree begins to fall, remove the product
from the cut, stop the engine, put the product down,
then use the retreat path planned. Be alert for
overhead limbs falling and watch your footing. (Fig.
52)
To limb a tree
1. Use larger limbs to hold the log off the ground.
2. Remove small limbs in one cut. (Fig. 53)
3. Cut branches that have tension from the bottom to
the top to prevent pinching the saw chain or the
guide bar.
To buck a log
CAUTION:
touch the ground.
• If the log is supported along its entire length, cut
from the top of the log (known as overbucking). (Fig.
54)
• If the log is supported on one end, cut 1/3 the
diameter from the underside of the log (known as
underbucking) . (Fig. 55)
• If the log is supported on both ends, cut 1/3
the diameter from the top. Complete the cut by
underbucking the lower 2/3 of the log to meet the
first cut. (Fig. 56)
• If you buck a log on a slope, always stand on the
uphill side of the log. Cut through the log while
you maintain complete control of the product, then
release the cutting pressure near the end of the
cut while firmly gripping the rear handle and front
handle. (Fig. 57)
Do not let the saw chain
654 - 010 - 25.07.2023