Echo DCS-310 Manual Del Operario página 11

EN
• 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.
10.3 LIMB A TREE
Figure 13.
Don't saw above chest height.
Limbing a fallen tree is much the same as bucking.
Never remove a limb from a tree while it is supporting your
weight.
Be careful of the tip touching other limbs.
Always use both hands.
Don't cut with the saw overhead or the bar in a vertical
position.
If the saw should kickback, you may not have good enough
control to prevent possible injury.
Know how limb is stressed
• If you have thick branches, work from the outside to the
inside to avoid your bar and chain get stuck.
10.4 BUCK A LOG
Figure 14.
Stay on the uphill side of logs.
Bucking is the sawing of a log or fallen tree into smaller
pieces. There are a few basic rules which apply to all bucking
operations.
• Keep both hands on the handles at all times.
• Support logs if possible.
• When cutting on a slope or hillside, always stand uphill.
No standing on log.
English (Original Instructions)
CAUTION
CAUTION
NOTE
10.5 TENSION AND COMPRESSION IN
TIMBER
Figure 15-17.
If you have misjudged the effects of tension and
compression, and cut from the wrong side, the timber will
pinch the guide bar and chain, trapping it. If the chain
should become jammed and the saw can not be removed
from the cut do not force it out. Stop the saw, force a wedge
into the cut to open it up. Never force the saw when it is
jammed. Do not force the saw into the cut. A dull chain is
unsafe and will cause excessive wear to the cutting
attachments. A good way to tell when the chain is dull is
when fine saw dust comes out instead of chips.
A length of timber lying on the ground will be subject to
tension and compression, depending at which points the
major support is.
• When timber is supported at its ends the compression side
is at the top and the tension side is at the bottom.
• To cut between these support points, make the first cut
downwards approximately 1/3rd the timber diameter.
• The second cut is made upwards and should meet the first
cut.
Heavy stress
• When the timber is supported at one end only, make the
first cut upwards approximately 1/3rd the timber
diameter.
• The second cut is made downwards and should meet the
first cut.
Underbuck
• Make angled cut when one section may settle against the
other.
11 MAINTENANCE
Do not let brake fluids, gasoline, petroleum-based materials
touch the plastic parts. Chemicals can cause damage to the
plastic, and make the plastic unserviceable.
Do not use strong solvents or detergents on the plastic
housing or components. Strong solvents or detergents can
cause damage to the plastic housing or components.
Remove the battery pack from the machine before
maintenance.
12
CAUTION
WARNING
WARNING
WARNING