Working Behavior/Method Of Working - Makita DCS231T Originalbetriebsanleitung

- Kickback occurs when the upper part of the end of the
guide bar inadvertently touches wood or other hard
objects (Fig. 10).
- Before the saw chain enters the cut, it can slip to the
side or jump (caution: high risk of kickback).
- This causes the saw to be thrown back toward the user
with great force and out of control. Risk of injury!
In order to prevent kickback, follow these rules:
- Only specially-trained persons should perform plunge
cuts, i.e., piercing timber or wood with the tip of the
saw!
- Always observe the end of the guide bar. Be careful
when continuing an already started cut.
- When starting to cut the chain must be running.
- Ensure that the chain is always sharpened correctly.
Pay special attention to the height of the depth limiter.
- Never cut several branches at the same time. When
cutting a branch ensure that no other branch is
touched.
- When crosscutting a trunk be aware of the trunks next
to it.

Working behavior/Method of working

- Only use the chain saw during good light and visibility
periods. Be aware of slippery or wet areas, and of ice
and snow (risk of slipping). The risk of slipping is
extremely high when working on recently peeled wood
(bark).
- Never work on unstable surfaces. Make sure that there
are no obstacles in the working area, risk of stumbling.
Always ensure that you have a safe footing.
- Never saw above your shoulder height (Fig. 11).
- Never saw while standing on a ladder (Fig. 11).
- Never climb a tree and work without the appropriate
restraining systems for the operator and the saw. We
recommend always working from a rising platform
(cherry picker, lift).
- Do not work leaning too far over.
- Guide the chain saw in such a way that no part of your
body is within the elongated swivelling range of the saw
(Fig. 12).
- Use the chain saw for sawing wood only.
- Avoid touching the ground with the chain saw while it is
still running.
- Never use the chain saw for lifting up or removing
pieces of wood or other objects.
- Remove foreign objects such as sand, stones and nails
found within the working area. Foreign objects may
damage the sawing device and can cause dangerous
kickback.
- When sawing precut timber use a safe support (sawing
jack, (Fig. 13)). Do not steady the workpiece with your
foot, and do not allow anyone else to hold or steady it.
- Secure round pieces against rotation.
- Before performing a crosscut firmly apply the front of
the body to the timber, only then can the timber be cut
with the chain running. For this the chain saw is lifted at
the rear handle and guided with the tubular handle. The
front of the body serves as a centre of rotation.
Continue by slightly pressing down the tubular handle
and simultaneously pulling back the chain saw. Apply
the front of the body a little bit deeper and once again
lift the rear handle.
- When the timber must be pierced for cutting or
longitudinal cuts are to be performed it is urgently
recommended to have this carried out by specially
trained persons only (high risk of kickback).
- Do longitudinal - lengthwise - cuts at the lowest
possible angle (Fig. 14). Be very careful when doing
this type of cut, as the front body cannot grip.
- The saw must be running whenever you remove the
chain saw from the wood.
- When performing several cuts the throttle lever must be
released in between.
- Be careful when cutting splintery wood. Cut pieces of
wood may be pulled along (risk of injuries).
- When cutting with the upper edge of the guide bar, the
chain saw may be pushed in the direction of the user if
the chain gets clamped. For this reason use the lower
edge of the bar whenever possible. The chain saw will
then be pushed away from you (Fig. 15).
- If the timber is under tension (Fig. 16), first cut the
pressure side (A). Then the crosscut can be performed
on the tension side (B). Thus clamping of the guide bar
can be avoided.
CAUTION:
People felling trees or cutting of branches must be
specially trained. High risk of injuries!
- When cutting of branches, the chain saw should be
supported on the trunk. Do not use the end of the bar
for cutting (risk of kickback).
- Be aware of branches under tension. Do not cut free
branches from below.
- Never perform detentioning cuts while standing on the
trunk.
- Before cutting down a tree ensure that
a) only those people are within the working area which
are actually involved in cutting down the tree.
b) every worker involved can withdraw without
stumbling (the people should withdraw backwards in
a diagonal line, i. e. at a degree of 45°).
c) the bottom part of the trunk is free from foreign
objects, underbrush and branches. Make sure to
have a safe footing (risk of stumbling).
d) the next working place is at least 2 1/2 tree lengths
away (Fig. 17). Before cutting down the tree check
the direction of fall and make sure that there are
neither people nor objects within a distance of 2 1/2
tree lengths.
- Judging the tree:
Direction of hanging - loose or dry branches - height of
the tree -natural overhang -is the tree rotten?
- Take into account the direction and speed of the wind.
If strong gusts are occurring, do not do any felling.
Avoid sawdust (pay attention to the direction the wind
is blowing)!
- Cutting the roots:
Start with the strongest root. First do the vertical and
then the horizontal cut. -Notching the trunk (Fig. 18, A):
The notch determines the direction of fall and guides
the tree. The trunk is notched perpendicular to the
direction of fall and penetrates 1/3 - 1/5 of the trunk
diameter. Perform the cut near the ground.
- When correcting the cut, always do so over the whole
width of the notch.
- Cut down the tree (Fig. 19, B) above the bottom edge
of the notch (D). The cut must be exactly horizontal.
The distance between both cuts must be approx. 1/10
of the trunk diameter.
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