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Kickback
- When working with the chain saw dangerous kickbacks may
occur.
-
Kickback occurs when the upper part of the end of the guide
bar inadvertently touches wood or other hard objects (10).
-
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!
-
Never apply the end of the bar when starting to make a cut.
-
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 (11).
-
Never saw while standing on a ladder (11).
-
Never climb up into trees to perform sawing with the chain
saw.
-
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 (12).
-
Use the chain saw for sawing wood only.
-
Avoid touching the ground with the chain saw while it is still
running.
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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,
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.
-
For cutting down trees or performing crosscuts the
spike bar (13, Z) must be applied to the wood to be cut.
-
Before performing a crosscut firmly apply the spike bar to
the timber, only then can the timber be cut with the chain
running. For this the chain saw is lifted at the back handle
and guided with the tubular handle. The spike bar serves as
a centre of rotation. Continue by slightly pressing down the
tubular handle and simultaneously pulling back the chain
saw. Apply the spike bar a little bit deeper and once again lift
the back 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).
-
When starting a cut, the blade can slip to the side or jump
slightly. This depends on the wood and the condition of the
chain. Therefore, always hold the chain saw with both
hands.
-
Do longitudinal - lengthwise - cuts at the lowest possible
angle (14). Be very careful when doing this type of cut, as
the spike bar 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.
6
10
11
12
13
14
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