Hilti DGH 130 Bedienungsanleitung Seite 24

5.3 Adjusting the guard
Situation: The grinder is switched off.
1. Set the grinder on the grinding wheel.
2. Use the height adjuster to adjust the height.
▶ Optimum height: approximately 1 mm clearance between slats and surface.
3. If you are working along a corner, turn the segment opening of the guard to the desired position.
4. Be sure to close the segment opening when you finish working along the corner.
6 Types of work
6.1 Operation
WARNING
Damaged power cords are a safety hazard! If the supply cord or extension cord is damaged while work
is in progress, immediately disconnect the device and the cord from the electricity supply. Do not touch the
damaged part of the cord.
▶ Regularly check all supply cords. Replace defective extension cords. Have damaged power cords
replaced by a qualified specialist.
Use of a ground fault circuit interrupter (residual current device, RCD) with a maximum tripping current of
30 mA is recommended.
6.2 Switching on and off
6.2.1 Switching on
1. Plug the supply cord into the power outlet.
2. Press the rear section of the on/off switch.
3. Slide the on/off switch forward.
4. Lock the on/off switch.
▶ The motor runs.
6.2.2 Switching off
▶ Press the rear section of the on/off switch.
▶ The on/off switch jumps into the off position and the motor stops.
6.3 Trying out after fitting a new diamond cup wheel
CAUTION
Risk of injury! Damaged grinding wheels can work loose.
▶ Protect the grinding wheels from blows, impacts and grease.
▶ Do not use vibrating grinding wheels.
▶ Allow the grinder to run for at least 1 minute without load.
6.4 Grinding
1. Connect the grinder to an industrial vacuum cleaner.
2. Lift the power tool clear of the work surface.
3. Switch the tool on.
▶ The device is now in continuous operation mode.
4. Set the desired speed.
▶ Use stages 3 to 6 for grinding with a diamond cup wheel. You get the highest rate of abrasive removal
with stage 6.
▶ Use stages 1 to 2 for fine-grinding. With stage 1 you have better control over the device and the
finished result is finer.
5. Bring the device with the accessory tool into full contact with the work surface and keep the tool moving
with a steady back-and-forth action.
6. Apply moderate pressure and do not dig the tool into the material.
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