Hilti Nuron DSH 700-22 Manual De Instrucciones Original página 31

remove the cut-off wheel from the cut while the wheel is in motion otherwise kickback may occur.
Investigate and take corrective action to eliminate the cause of the wheel binding.
▶ Do not switch the power tool on again while the accessory tool is in the cut. Let the cut-off wheel
reach full speed and carefully re-insert it into the cut. The wheel can bind, walk up or kick back if the
power tool is restarted with the wheel in the workpiece.
▶ Support panels or large workpieces to minimize the risk of wheel bind and kickback. Large
workpieces tend to sag under their own weight. Supports must be placed under the workpiece on both
sides of the cut-off wheel, both close to the line of cut and near the edge of the workpiece.
▶ Use extra caution when making a "pocket cut" into existing walls or other blind areas. Kickback can
occur if the cut-off wheel slices into gas or water pipes, electric wiring or other objects as it plunge-cuts.
2.3 Additional safety instructions
Personal safety
▶ If work involves break-through, always secure the area on the side opposite where the work is carried
out. Pieces of debris could drop out and/or fall down and injure other persons.
▶ Use the product and accessories only when they are in perfect working order.
▶ Do not use the product while standing on ladders (unless you are wearing adequate fall-arrest protective
equipment).
▶ Never tamper with or modify the product or accessories in any way. Use only spare parts and accessories
recommended by Hilti.
▶ Wear protective gloves when using the power tool and when changing accessory tools.
▶ Take breaks between working and do relaxation and finger exercises to improve the blood circulation in
your fingers. Exposure to vibration during long periods of work can lead to disorders of the blood vessels
and nervous system in the fingers, hands and wrists.
▶ Do not use the cut-off saw to cut flammable materials such as wood or magnesium, or hazardous
materials such as materials containing asbestos.
▶ Make sure that the workplace is well ventilated. Large quantities of dust in poorly ventilated work zones
can be harmful to health. Dust from materials such as paint containing lead, some types of wood and
also metal can be harmful to health. Contact with or inhalation of the dust can cause allergic reactions
and/or respiratory or other diseases among operators or bystanders. Only specialists are permitted to
handle material containing asbestos.
▶ Cutting into unknown materials can release dust and vapors of unknown chemical composition that can
be harmful to health. Before starting work, obtain detailed information about the composition of the
material to be cut. You and others in the work zone must always wear dust masks approved for the
composition of the material to be cut.
▶ Dust produced by grinding, sanding, cutting and drilling can contain dangerous chemicals. Some
examples are: lead or lead-based paints; brick, concrete and other masonry products, natural stone
and other products containing silicates; certain types of wood, such as oak, beech and chemically
treated wood; asbestos or materials that contain asbestos. Determine the exposure of the operator and
bystanders by means of the hazard classification of the materials to be worked. Implement the necessary
measures to restrict exposure to a safe level, for example by the use of a dust collection system or by
the wearing of suitable respiratory protection. The general measures for reducing exposure include:
▶ working in an area that is well ventilated,
▶ avoidance of prolonged contact with dust,
▶ directing dust away from the face and body,
▶ wearing protective clothing and washing exposed areas of the skin with water and soap.
▶ Risk of injury by falling tools and/or accessories. Before starting work, check that the battery and installed
accessories are secure.
Electrical safety
▶ Before beginning work, check the working area (e.g. using a detector) to ensure that no concealed
electric cables or gas and water pipes are present. External metal parts of the power tool can become
live, for example if you accidentally damage electric wiring.
▶ Always clean the power tool and the Li-ion batteries separately; do not use a high-pressure cleaner and
do not attempt to spray them clean with a garden hose, for example.
▶ Always dry cut-off saw and Li-ion battery separately from each other if they are wetted.
Using and handling the power tool
▶ Always hold the power tool securely with both hands firmly on the defined grips.
▶ Do not touch rotating parts; rotating accessory tools in particular can lead to injuries if touched.
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