Additional Safety Instructions - Hilti AG 125-A22 Manual Del Usuario

Safety instructions for grinding and abrasive cutting:
▶ Use only abrasive wheel types approved for your power tool and the specific guard designed for
the selected wheel. Wheels for which the power tool was not designed cannot be adequately guarded
and are unsafe.
▶ Offset grinding discs must be fitted in such a way that their grinding face does not project past
the plane of the guard edge. An incorrectly fitted grinding disc projecting past the plant of the guard
edge cannot be adequately shielded.
▶ The guard must be securely attached to the power tool and positioned for maximum safety, so
that the smallest possible segment of the abrasive disc is exposed toward the operator. The guard
helps protect the operator from flying fragments, accidental contact with the abrasive disc, and flying
sparks that could ignite clothing.
▶ Use abrasive discs for the recommended applications only.
▶ Never try to use the flat of an abrasive cut-off wheel for grinding. Abrasive cut-off wheels are
intended for peripheral grinding. Side forces applied to these wheels can cause them to shatter.
▶ Always use an undamaged clamping flange of the correct size and shape for your selected grinding
disc. The correct flange supports the grinding disc, reducing the risk of disc breakage. Flanges for
cut-off wheels can differ from those for other grinding discs.
▶ Do not use worn-down, originally larger-diameter grinding discs from larger power tools. Grinding
discs intended for a larger power tool are not suitable for the higher speed of a smaller tool and can
break.
Further safety instructions for abrasive cutting:
▶ Do not stall the cut-off wheel or apply excessive pressure. Do not attempt to make excessively
deep cuts. Overstressing the wheel increases the loading and susceptibility to twisting or binding of the
wheel in the cut and the possibility of kickback or wheel breakage.
▶ Keep clear of the areas in front of and behind the rotating cut-off wheel. When the wheel, at the
point of operation, is moving away from your body, the possible kickback may propel the spinning wheel
and the power tool directly at you.
▶ If the wheel binds or when you interrupt a cut for any reason, switch off the power tool and hold
the power tool motionless until the wheel comes to a complete stop. Never attempt to remove the
rotating cut-off wheel from the cut, because kickback can occur. Investigate and take corrective
action to eliminate the cause of wheel binding.
▶ Do not switch the power tool on again while the wheel is in the cut. Let the 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 cut.
▶ Support panels or large workpieces to minimize the risk of the wheel binding and causing kickback.
Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece on
both sides of the cutting wheel, both close to the line of cut and near the edge of the workpiece.
▶ Use extra caution when plunge cutting into existing walls or other blind areas. Kickback can occur
if the wheel slices into gas or water pipes, electric wiring or other objects during the plunge cut.
2.1.3

Additional safety instructions

Personal safety
▶ Only use the product if it is in perfect working order.
▶ Never tamper with or modify the tool in any way.
▶ Avoid touching rotating parts – risk of injury!
▶ Wear protective gloves also when changing the accessory tool. Touching the accessory tool presents a
risk of injury (cuts or burns).
▶ Before starting work, check the hazard class of the dust that will be produced when working. Use
an industrial vacuum cleaner with an officially approved protection class in compliance with the locally
applicable dust protection regulations. Dust from materials such as lead-based paint, certain types of
wood and concrete/masonry/stone containing quartz, minerals or metal may be harmful to health.
▶ Make sure that the workplace is well ventilated and, where necessary, wear a respirator appropriate for
the type of dust generated. Contact with or inhalation of the dust may cause allergic reactions and/or
respiratory or other diseases among operators or bystanders. Certain kinds of dust are classified as
carcinogenic such as oak and beech dust, especially in conjunction with additives for wood conditioning
(chromate, wood preservative). Material containing asbestos may be handled only by specialists.
▶ Take breaks between working and do physical 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.
20 English
Printed: 18.06.2018 | Doc-Nr: PUB / 5223753 / 000 / 03
2111866
*2111866*