Causes And Operator Prevention Of Kickback; Additional Safety Instructions - Metabo MA-MS 25 Manual Original

e) Do not operate the machine in a tree, on a
ladder, from a rooftop, or any unstable support.
Operation of a chain saw in this manner could result
in serious personal injury.
f) Always keep proper footing and operate the
machine only when standing on fixed, secure
and level surface. Slippery or unstable surfaces
may cause a loss of balance or control of the
machine.
Pay attention to obstacles in the working area -
danger of tripping.
g) When cutting a limb that is under tension, be
alert for spring back. When the tension in the
wood fibres is released, the spring loaded limb may
strike the operator and/or throw the machine out of
control.
h) Use extreme caution when cutting brush and
saplings. The slender material may catch the saw
chain and be whipped toward you or pull you off
balance.
i) Carry the machine by the two handles with
the machine switched off and the saw chain
away from your body. When transporting or
storing the machine, always fit the guide bar
cover. Proper handling of the machine will reduce
the likelihood of accidental contact with the moving
saw chain.
j) Follow instructions for lubricating, chain
tensioning and changing the bar and chain.
Improperly tensioned or lubricated chain may either
break or increase the chance for kickback.
k) Cut wood only. Do not use the machine for
purposes not intended. For example: do not
use the machine for cutting metal, plastic,
masonry or non-wood building materials. Use
of the machine for operations different than
intended could result in a hazardous situation.
m) Follow all instructions when clearing
jammed material, storing or servicing the
machine. Make sure the switch is off and the
battery pack is removed. Unexpected actuation
of the machine while clearing jammed material or
servicing may result in serious personal injury.
4.2 Causes and operator prevention of
kickback
Kickback may occur when the nose or tip of the
guide bar 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 bar up and back
towards the operator.
Pinching the saw chain along the top of the guide
bar may push the guide bar rapidly back towards
the operator.
Either of these reactions may cause you to lose
control of the saw which could result in serious
personal injury. As a machine user, you should take
several steps to keep your cutting jobs free from
accident or injury.
Kickback is the result of machine misuse and/or
incorrect operating procedures or conditions and
can be avoided by taking proper precautions as
given below:
a) Maintain a firm grip, with thumbs and fingers
encircling the machine handles, with both
hands on the saw. and position your body and
arm to allow you to resist kickback forces.
Kickback forces can be controlled by the operator,
if proper precautions are taken. Do not let go of the
machine.
b) Avoid adverse body positions. This enables
better control of the machine in unexpected
situations.
c) Only use replacement guide bars and saw
chains specified by the manufacturer. Incorrect
replacement guide bars and saw chains may cause
chain breakage and/or kickback.
d) Follow the manufacturer's sharpening and
maintenance instructions for the saw chain.
Decreasing the depth gauge height can lead to
increased kickback.
4.3

Additional Safety Instructions:

the chainsaw meets a hard object in the wood, the
chainsaw can be pulled forward For this reason,
whenever possible, always place the stop of the
machine against the wood.
Inspect the wood for nails, cords, wires or loose
parts and remove them before sawing.
The machine is provided with a "Quick stop"
function. Have the machine repaired if braking time
is clearly lengthened.
If the machine has been dropped or subjected to
other impacts: Inspect the machine thoroughly to
check for damage or other defects.
Wear personal protective equipment and always
wear safety glasses. Protective equipment such as
dust mask, non-skid safety shoes, hard hat,
protective gloves, tight-fitting protective clothing
and hearing protection will reduce personal injuries.
Keep at least 15 m distance to uninvolved persons.
Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under the
influence of drugs, alcohol or medication. A
moment of inattention while operating power tools
may result in serious personal injury.
Never use the guide rail as a lever.
Keep handles and grasping surfaces dry, clean and
free from oil and grease. Slippery handles and
grasping surfaces do not allow for safe handling
and control of the tool in unexpected situations.
Do not operate the machine in bad weather
conditions, especially when there is a risk of
lightning. This reduces the risk to be hit by
lightning.
ENGLISH en
Dangerous pull force: If the
stop of the machine is not
placed against the wood to
be cut and - when cutting at
the lower edge of the guide
rail - the guide rail jams, or if
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