Causes And Operator Prevention Of Kickback; Residual Risks - Kärcher CNS 18-30 Battery Manuel D'instructions Original

Causes and operator prevention of kickback

Kickback may occur when the nose or tip of the guide
rail touches an object, or when the wood closes in and
pinches the saw chain in the cut.
Tip contact in some cases may cause a sudden reverse
reaction, kicking the guide rail up and back towards the
operator.
Pinching the saw chain along the top of the guide rail
may push the guide rail rapidly back towards the opera-
tor.
Either of these reactions may cause you to lose control
of the saw, which could result in serious personal injury.
Do not rely exclusively upon the safety devices built into
your saw. As a chain saw user, you should take several
steps to keep your cutting jobs free from accident or in-
jury.
Kickback is the result of tool misuse and/or incorrect op-
erating procedures or conditions and can be avoided by
taking proper precautions as given below:
 Maintain a firm grip, with thumbs and fingers en-
circling the chain saw handles, with both hands
on the saw and position your body and arm to al-
low you to resist kickback forces. Kickback forc-
es can be controlled by the operator, if proper
precautions are taken. Do not let go of the chain
saw.
 Do not overreach and do not cut above shoulder
height. This helps prevent unintended tip contact
and enables better control of the chain saw in unex-
pected situations.
 Only use replacement bars and chains specified
by the manufacturer. Incorrect replacement bars
and chains may cause chain breakage and/or kick-
back.
 Follow the manufacturer's sharpening and
maintenance instructions for the saw chain. De-
creasing the depth gauge height can lead to in-
creased kickback.
Additional safety instructions for chainsaws
●
Note
Kärcher recommends sawing tree trunks on a
sawhorse during first use.
keep a first aid kit for large wounds and a means of call-
ing for help. A larger and more extensive first aid kit
should be nearby.
●
WARNING
Ensure a firm footing, a clean
workplace and plan a retreat path from falling branches
●
before using the device.
vapour and sawdust. If necessary, wear a mask or
●
breathing apparatus. Always hold the chainsaw tight-
ly with both hands. Hold the handles with your thumb on
one side and your fingers on the other side. Hold the
rear handle with your right hand and the front handle
●
with your left hand. Risk of injury. Do not make any
modifications to the device. Do not use the device to
drive attachments or devices not recommended by the
manufacturer of the device.
device, make sure that the saw chain does not touch
●
any objects. Serious injuries or death if a wrongly ten-
sioned saw chain jumps out of the guide rail. Check the
chain tension before each use. The length of the chain
depends on the temperature.
tive devices, handles and bucking spikes are correctly
fitted, securely fastened and in good condition.
ous injuries due to incorrect working methods:
●
When using the chainsaw,
Beware of exhaust fumes, oil
●
Before switching on the
●
Ensure that all protec-
●
Seri-
 You need to be alert at all times and be in control of
your workplace when working with the chainsaw.
The size of the workspace depends on the task to be
performed and the size of the tree or work piece.
Felling a tree requires a larger workspace than e.g.
trimming.
 Never saw with your body in line with the guide rail
and chain. This reduce the danger of being hit by the
chain on the head or body during a kickback.
 Do not move the chainsaw back and forth but rather
let the chain do the work, keep the chain sharp and
do not try to push the chain through the cut.
 Do not apply pressure to the saw at the end of the
cut. Be prepared to relax the load on the saw when
it has cut through the wood.
 Do not stop the chainsaw while sawing. Let the saw
run until it has finished the saw cut.
●
Familiarize yourself with your new chainsaw by mak-
ing simple cuts in safely supported wood. Repeat this
exercise if you have not used your chainsaw for a long
●
time. Do not saw vines and/or bushes with a diame-
ter of less than 75 mm.
chain brake, remove the battery pack and make sure
that all moving parts have stopped moving:
 Before cleaning the device or removing a blockage.
 When leaving the device unattended.
 Before mounting or removing attachments.
 Before checking, maintaining or working on the de-
vice.
CAUTION
People who use the chainsaw should be physically fit
and in good health. You should have good eyesight,
agility, balance and manual skills. In case of doubt, they
should not use the chainsaw.
device, always wear a safety helmet with a grille visor to
reduce the danger of injury from a kickback into the face
and head.
WARNING
●
Certain residual risks remain present, even when the
device is operated in the prescribed manner. The fol-
lowing dangers can be present when using the de-
vice:
 Vibration can cause injuries. Use the correct tools
for the job, use the handles provided and restrict the
working time and hazard exposure time.
 Noise can cause hearing injuries. Wear hearing pro-
tection and limit the duration of exposure.
 Incision injuries on contact with exposed saw teeth
of the saw chain.
 Incision injuries due to unforeseen, abrupt move-
ments or kickback of the g bar scabbard.
 Incision injuries / risk of injection by parts flying away
from the saw chain.
 Injuries caused by hurled objects (wood shavings,
splinters).
 Inhalation of dust and particles.
 Skin contact with the lubricant / oil.
CAUTION
●
Using the device for longer periods can cause poor
circulation in the hands due to vibrations. A general
period of use cannot be set, because this depends on
several influencing factors:
English
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Switch the device off, lock the
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The chainsaw is a heavy device.
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When working with the

Residual risks

Risk reduction
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