Cutting Procedures - Hitachi CS 36DL Instrucciones De Manejo

○ When using a back pack power supply (BL36200),
check the battery level on the battery level display of
the back pack power battery.
For details, see the BL36200 instruction manual.

CUTTING PROCEDURES

WARNING
○ Prior to operation, ensure that chain brake works.
○ During use, grip the handle securely with both hands.
○ When cutting timber from the bottom, ensure the saw
chain does not impact with the timber.
If the unit is pushed back, injury may occur.
○ During work breaks or after work, always switch the unit
off , and remove the storage battery from the main body.
Always monitor the workplace and surrounding area,
ensure there are no objects which could cause injuries,
accidents or failure, and if any are present, remove them
in advance.
In particular, when establishing a foothold for working,
ensure there is no instability or any object which could be
tripped over.
When felling standing trees, always pay careful attention to
the direction in which the tree will fall or roll, and determine
a safe evacuation area and escape route for yourself in
advance.
1 Ensuring the unit is switched off
If the storage battery is inserted while the switch is
unknowingly engaged, the unit may unexpectedly
start, which may result in an accident.
2 Installing the storage battery (Fig. 4)
As shown in Fig. 4, push fi rmly until it clicks into place.
3 Engaging the switch
Ensuring the saw chain is not in contact with the timber,
engage the switch, and start cutting when the saw
chain speed has increased.
CAUTION
○ When switching the unit on, ensure the saw chain does
not contact with material or anything else.
○ During use, be careful to ensure the saw chain does
not contact with other material or object. In particular,
when you have fi nished cutting, be careful to ensure it
does not touch the ground.
NOTE
Refi ll the oil tank early to prevent the unit running out of
oil.
1. General cutting procedures
(1) Switch ON the power while keeping the saw slightly
away from the wood to be cut. Start sawing only after
the unit has reached full speed.
(2) When sawing a slender piece of wood, press the base
section of the guide bar against the wood and saw
downward as shown in Fig. 25.
(3) When sawing a thick piece of wood, press the spike on
the front section of the unit against the wood and cut it
with a lever action while using the spike as a fulcrum as
shown in Fig. 26.
(4) When cutting wood horizontally, turn the unit body to
the right so that the guide bar is below and hold the
upper side of the front handle with your left hand. Hold
the guide bar horizontally and place the spike that is
on the front of the unit body on the lumbar. Using the
spike as a fulcrum, cut into the wood by turning the rear
handle to the right. (Fig. 27)
(5) When cutting into wood from the bottom, touch the
upper part of the guide bar to the wood lightly. (Fig. 28)
(6) As well as carefully studying the handling instructions,
ensure practical instruction in the operation of the chain
saw prior to use, or at least practice working with the chain
saw by cutting lengths of round timber on a sawing trestle.
(7) When cutting logs or timbers which are not supported,
support them properly by immobilizing them during
cutting using a sawing trestle or other proper method.
CAUTION
○ When cutting wood from the bottom, there is a danger
that the unit body may be pushed back toward the user
if the chain strongly impacts with the wood.
○ Do not cut all the way thorough the wood by starting
from the bottom since there is the danger of the guide
bar fl ying up out of control when the cut is fi nished.
○ Always prevent the operating chain saw from touching
the ground or wire fences.
2. Branch cutting
(1) Cutting branches from a standing tree:
A thick branch should initially be cut off at a point away
from the trunk of the tree.
First cut in about one third of the way from below, and
then cut off the branch from above. Finally, cut off the
remaining portion of the branch even with the trunk of
the tree. (Fig. 29)
CAUTION
○ Always be careful to avoid falling branches.
○ Always be alert for chain saw recoil.
(2) Cutting branches from fallen trees:
First cut off branches that do not touch the ground, then
cut off those which touch the ground. When cutting
thick branches that touch the ground, fi rst cut in about
half of the way from above, then cut the branch off from
below. (Fig. 30)
CAUTION
○ When cutting off branches which touch the ground, be
careful that the guide bar does not become bound by
pressure.
○ During the fi nal cutting stage, beware of the log
suddenly rolling.
3. Log cutting
When cutting a log positioned as shown in Fig. 31, fi rst
cut in about one third of the way from below, then cut
down all the way from above. When cutting a log that
straddles a hollow as shown in Fig. 32, fi rst cut in about
two thirds of the way from above, then cut upward from
below.
CAUTION
○ Ensure the guide bar does not become bound in the log
by pressure.
○ When working on inclined ground, be sure to stand on
the uphill side of the log. If you stand on the downhill
side, the cut-off log may roll toward you.
4. Felling trees
(1) Undercut ( as shown in Fig. 33):
Make undercut facing the direction in which you want
the tree to fall.
The depth of the undercut should be 1/3 of the tree's
diameter. Never fell trees without proper undercut.
(2) Back cut ( as shown in Fig. 33):
Make a backcut about 5 cm above and parallel to the
horizontal undercut.
If the chain becomes entangled during cutting, stop the
saw and use wedges to free it. Do not cut thorough the
tree.
CAUTION
○ Trees should not be felled in a manner that would
endanger any person, strike any utility line or cause
any property damage.
○ Be sure to stand on the uphill side of the terrain as the
tree is likely to roll or slide downhill after it is felled.
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