Hilti UH 700 Manual De Instrucciones Original página 24

Safety instructions when using long drill bits
▶ Never operate at higher speed than the maximum speed rating of the drill bit. At higher speeds,
the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal
injury.
▶ Always start drilling at low speed and with the bit tip in contact with the workpiece. At higher
speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
▶ Apply pressure only in direct line with the bit and do not apply excessive pressure. Bits can bend
causing breakage or loss of control, resulting in personal injury.
2.3 Additional safety instructions
Personal safety
▶ Use the product and accessories only when they are in perfect working order.
▶ Never tamper with or modify the product and accessories in any way.
▶ Always hold the product with both hands on the grips provided. Keep the grips dry, clean and free from
oil and grease.
▶ Always lead the supply cord and extension cord away from the product to the rear while working. This
helps to avoid tripping over the cord while working.
▶ Take frequent breaks and do physical exercises to improve the blood circulation in your fingers. High
vibration during long periods of work can lead to disorders of the blood vessels and nervous system in
the fingers, hands and wrists.
▶ Risk of injury by falling tools and/or accessories. Before starting work, check that installed accessories
are secure.
▶ Wear eye protection, a hard hat and ear protection while the product is in use.
▶ Keep the air vents clear at all times. Risk of burn injuries due to blocked air vents!
▶ 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.
▶ The product is not intended for use by debilitated persons who have received no special training. Keep
the product out of reach of children.
▶ Children are not permitted to play with the product and must be instructed accordingly.
Electrical safety
▶ Check the product's supply cord at regular intervals and have it replaced by a qualified specialist if found
to be damaged. If the power tool's supply cord is damaged it must be replaced with a specially-prepared
and approved supply cord available from Hilti Customer Service. Check extension cords at regular
intervals and replace them if found to be damaged. Do not touch the supply cord or extension cord if
it is damaged while working. Unplug the supply cord from the power outlet. Damaged supply cords or
extension cords present a risk of electric shock.
▶ Before beginning work, check the working area for concealed electric cables or gas and water pipes.
External metal parts of the product could give you an electric shock or cause an explosion if you
accidentally damage an electric cable or a gas or water pipe.
▶ Switch the electric tool off and unplug the supply cord in the event of an interruption in the electric supply
in order to avoid inadvertent restarting when the power returns.
▶ Dirty or dusty products that have been used frequently for work on conductive materials should be
checked at regular intervals by Hilti Service. Dust, especially dust from conductive materials, or
dampness on the surface of the product can, under unfavorable conditions, lead to electric shock.
Power tool use and care
▶ Secure the workpiece. A workpiece clamped in a vice or secured by some other clamping devices is
more secure than when held only by hand.
▶ Wear protective gloves when changing accessory tools as they get hot during use.
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