Hilti TE 4-22 Instruction Manual page 24

▶ Wear protective gloves when changing accessory tools, because the accessory tool and the chuck get
hot during use.
▶ In accordance with the applications for which it is designed, the product produces a high torque. Always
hold the tool with both hands on the grips provided. The user must be prepared for sudden sticking and
stalling of the accessory tool.
▶ Check that the side handle is fitted correctly and tightened securely. Always grip the side handle at its
outermost end.
▶ Working on the material may cause it to splinter. Flying fragments present a risk of injury to the eyes and
body. Wear eye protection, a hard hat and ear protection while the product is in use. In addition, wear
light respiratory protection if you are not using a dust extractor.
▶ Apply appropriate safety measures at the opposite side of the workpiece in work that involves breaking
through. Parts breaking away could fall out and / or fall down causing injury to other persons.
▶ When chiseling into ceilings, walls and floors, always make sure that you have a safe and firm stance. A
sudden break-through can affect your balance.
▶ Do not touch rotating parts – risk of injury!
▶ Keep the air vents clear at all times. Risk of burn injuries due to blocked air vents!
▶ Switch the product on only after you have brought it to the working position.
▶ Do not work in an environment heavily contaminated with dust.
▶ 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.
▶ 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.
▶ Do not look directly into the light source (LEDs) of the power tool and do not aim the beam at other
persons' faces. Risk of dazzling or eye damage.
▶ Prevent ingress of moisture. A short circuit caused by moisture can result in fire or burn injuries.
▶ Risk of injury by falling tools and/or accessories. Before starting work, check that the battery and installed
accessories are secure.
▶ Do not attach a belt hook to this product.
Electrical safety
▶ 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.
Power tool use and care
▶ Switch the product off immediately if the accessory tool jams. The product might twist off-line.
▶ Wait until the product stops completely before you lay it down.
2.4 Battery use and care
▶ Comply with the following safety instructions for the safe handling and use of Li-ion batteries.
Failure to comply can lead to skin irritation, severe corrosive injury, chemical burns, fire and/or explosion.
▶ Use only batteries that are in perfect working order.
▶ Treat batteries with care in order to avoid damage and prevent leakage of fluids that are extremely
harmful to health!
▶ Do not under any circumstances modify or tamper with batteries!
▶ Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over 80 °C
(176 °F).
▶ Never use or charge a battery that has suffered an impact or been damaged in any other way. Check
your batteries regularly for signs of damage.
▶ Never use recycled or repaired batteries.
18 English 2265062
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