hecht 925 R - The Reasons of Kickback and the Ways the User May Restrict It; Prevention and First Aid

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THE REASONS OF KICKBACK AND THE WAYS THE USER MAY
RESTRICT IT
• Kickback may occur when the nose or tip of a guide bar touches the object or when
the wood closes and clasp the saw chain in the cut.
• Touching the tip in some cases may cause a sudden back-reaction, throwing the guide bar
up and back toward the user. (fig. 21)
• The saw chain clamping along the tip of the guide bar can push the guide bar fast back
toward the user.
• Each of these reactions can cause a loss of control over the chainsaw which can cause
serious injury to a person. Do not rely solely on safety devices built into your chainsaw. As
a chainsaw user, you need to take more steps to operate your cutting work without accident
or injury.
Kickback is a consequence of improper use of tools and/or improper working practices
or conditions, and can be avoided by following the precautions below:
- Hold the handle firmly, with the thumbs and fingers wrapping the chainsaw handle,
with both hands on the chainsaw, and place your body and arm so that they can
withstand the forces of the kickback. Kickback forces can be controlled by the user if
the correct precautions are taken.
- Do not exceed or cut above the shoulder height. This helps prevent accidental tip
contact and allows better control over the chainsaw in unexpected situations.
- Use only spare bars and chains specified by the manufacturer. Inappropriate spare bars
and chains may cause chain breakage and/or kickback.
- Observe the manufacturer's instructions for sharpening and maintaining the saw chain.
Lowering the height of a limiting foot may result in increased kickback.
PREVENTION AND FIRST AID
Note: I We recommend you always have available:
• A suitable fire extinguisher (snow, powder, halotron).
• A fully equipped first-aid kit, easily accessible for accompanier and operator.
• A mobile phone or other device for quickly calling an emergency service.
• An accompanier familiar with the principles of first aid.
C The accompanier must keep a safe distance from the workplace while always
seeing you.
• Always follow the principles of first aid in case of any injuries.
• If there is a cut, cover the wound with a clean bandage (fabric) and press down firmly to
stop the bleeding.
• If the skin is burnt, avoid further exposure to the source of burns first. Cool the injured areas
of smaller extend with water of preferably about 4-8 °C. Do not put ointments, creams or
dusting powders on the affected area. The best way is to use a wet compress, for example
a handkerchief or a towel. Then secure the sterile cover and, if necessary, seek medical
attention.
• If persons with circulatory problems are often exposed to excessive vibration, they
may experience injury to blood vessels or their nervous system. The vibrations may cause
the following symptoms appear on fingers, hands or wrists: numbness, itching, pain,
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