Maruyama MCV3900 Manual De Usuario página 29

The accepted way to hold the saw is to stand to the left of
the saw with your left hand on the side handle and with
your right hand on the top handle so you can operate the
throttle trigger with your right index finger. Before attempting
to fell a tree, cut some small logs or limbs.
Be thoroughly familiar with the control and the responses
of the saw.
Start the engine, see that it is running properly.
Squeeze the trigger to open the throttle wide open, then
start the cut. 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 clutch and guide bar area and wash with
water.
WARNING
DO NOT LET THE NOSE OR TIP OF THE
GUIDE BAR TOUCH ANYTHING WHILE
ENGINE IS RUNNING TO AVOID
KICKBACK.
1. Before cutting, clear the area around the tree. You wiII
need good footing while working and you should be
able to work the saw without hitting any obstacles.
2. Next select a path of retreat.(A). When the tree begins
to fall you should retreat away from the direction of fall
(B) at a 45 degree angle to avoid the trunk kicking back
over the stump.
3. Begin the cut on the side to which the tree is to fall.Cut
a notch approximately 1/3 of the way into the tree. The
position of this notch is important since the tree wiiI try
to fall into the notch.
4. The felling cut is made on the side opposite the notch.
Make the felling cut 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 wilI act as a hinge when the tree falls,
guiding it in the desired direction.
5. When the tree starts to fall, kill the engine, place the
saw on the ground and make your retreat quickly.
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 spiked bumper engaged,
pivoting the saw through to form the desired hinge on that
8. CUTTING INSTRUCTION
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.
Limbing a fallen tree is much the same as bucking.
1. Never Iimb the tree that you are standing on.
2. Be careful of the tip touching other limbs.
3. Always use both hands.
4. Don't cut with the saw overhead or the bar in a vertical
position.
5. If the saw should kickback, you may not have good
enough control to prevent possible injury.
LIMBING IN THE PROXIMITY OF POWER
LINE CAN RESULT IN ELECTROCUTION.
ALWAYS SWITCH OFF POWER SUPPLY
BEFORE STARTING OPERATION.
ENGLISH
LIMBING
NOTE
Don't saw above chest height
WARNING
GB
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