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EN
produced at the end of the guide bar non-manually
actuates the chain brake. To make sure that the non-
manual chain brake operates properly, proceed as
follows:
1. Stop the machine.
2. Operate the front and rear handles with hands (grip
them lightly), so that the guide bar may be placed at
the height of about 70 cm as shown in Fig.
3. Softly detach the left hand from the front handle,
and touch the end of the guide bar against the
wood or the like placed below so that the machine
receives an impact. (* at this time the rear handle
should be gripped lightly with right hand)
4. The impact is transferred to the brake lever, which
actuates the chain brake.
11
CUTTING INSTRUCTION
Do not let the nose or tip of the guide bar touch
anything while unit is running to avoid kickback.
11.1 GENERAL
Figure 8-9.
In all circumstances the operation of the chain saw is a
oneman job.
It is difficult at times to take care of your own safety, so
don't assume the responsibility for a helper as well.
After you have learned the basic techniques of using
the saw, your best aid will be your own good common
sense.
The accepted way to hold the saw is to stand to the left
of the saw with your left hand on the front handle so
you can operate the trigger switch with your right index
finger.
Before attempting to fell a tree, cut some small logs or
limbs. Be thoroughly familiar with the controls and the
responses of the saw.
Start the unit, see that is running properly.
It is not necessary to press down hard to make the
saw cut. If the chain is properly sharpened, the cutting
should be relatively effortless.
Some material may adversely affect the housing of your
chain saw.(Example: palm tree acid, fertilizer etc.)
To avoid housing deterioration carefully remove all
packed saw dust around sprocket and guide bar area
and wash with water.
11.2 FELL A TREE
Figure 10-12.
A falling tree can seriously damage anything it may hit
- a car, a house, a fence, a power-line or another tree.
English (Original Instructions)
DANGER
There are ways to make a tree fall where you want it,
so first decide where that is! Before cutting, clear the
area around the tree. You will need good footing while
working and you should be able to work the saw without
hitting any obstacles.
1. Next select a path of retreat.
•
When the tree begins to fall you should retreat
away from the direction of fall at a 45-degree
angle and at least 3 m from the trunk to avoid
the trunk kicking back over the stump.
2. Begin the cut on the side to which the tree is to
fall.
a) Notch: 1/3 of diameter and 30˚ to 45˚ angle
b) Back cut: 2.5 to 5 cm higher
c) Uncut hinge wood: 1/10 of diameter
•
Cut a notch approximately 1/3 of the way into
the tree. The position of this notch is important
since the tree will try to fall "into" the notch.
•
The felling cut is made on the side opposite the
notch. Make the felling cut by placing spiked
bumper 2.5 cm to 5 cm above the bottom of
the notch and stop cutting at approximately 1/10
of diameter to the inner edge of the notch in
order to leave the uncut portion of the wood as a
hinge.
•
Do not try to cut through to the notch with the
felling cut. The remaining wood between the
notch cut and felling cut will act as a hinge when
the tree falls, guiding it in the desired direction.
•
When the tree starts to fall, stop the unit, place
the saw on the ground and make your retreat
quickly.
3. Fell big tree.
•
To fell big trees with a diameter exceeding twice
the bar length, start the notching cuts from one
side and draw the saw through to the other side
of the notch.
•
Start the back cut on one side of the tree with
the spiked bumper engaged, pivoting the saw
through to form the desired hinge on that side.
•
Then remove the saw for the second cut.
•
Insert the saw in the first cut very carefully so as
not to cause kickback.
•
The final cut is made by drawing the saw
forward in the cut to reach the hinge.
11.3 LIMB A TREE
Figure 13.
Don't saw above chest height.
Limbing a fallen tree is much the same as bucking.
12
CAUTION
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