Hilti WFO 280 Original Bedienungsanleitung Seite 21

3. Slip the end of the sanding sheet into the clamp and flatten the sheet against the sanding plate.
4. When inserting the sanding sheet, make sure that the openings in the sheet are in line with the holes in
the sanding plate.
5. Keeping the sanding sheet correctly positioned, close the clamp release lever to secure the sheet in
position.
➥ The clamp release lever must engage on both sides.
6. Check that the clamp always remains closed while work is in progress.
5.3 Setting the oscillation rate
The ideal oscillation rate depends on the material to be sanded. Determine the optimum oscillation
rate by trial and error. Pay attention to the product information supplied with the sanding sheets and
to the use tables.
▶ Set the thumbwheel for oscillation-rate preselection to a value between 1 (low) and 6 (high).
➥ The electronics keep the oscillation rate constant even under load.
5.4 Installing the dust bag
1. Pull the plastic slider in the underside of the grip all the way out.
2. Slip the dust bag over the dust removal connector.
➥ Make sure that the plastic slider engages the tab provided for the purpose on the dust bag.
5.5 Connecting an external extraction system
Always connect an external extraction system when working over a lengthy period with wood or
materials that can produce dusts that are hazardous to health.
1. Fit the suction adapter.
2. Connect the extraction hose of a suitable external extraction system.
6 Types of work
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.
6.1 Safety
CAUTION
Risk of injury! The accessory tool may be hot and/or have sharp edges.
▶ Wear protective gloves when changing the accessory tool.
▶ Never lay down a hot accessory tool on a flammable surface.
6.2 Switching on
Before plugging the supply cord into the power outlet, make sure that the product is switched off.
1. Plug the supply cord into the power outlet.
2. Press the on/off switch.
➥ The motor runs.
3. Keep the on/off switch pressed and lock it in this position by pressing the locking button.
➥ The motor runs continuously.
*314703*
Printed: 23.07.2019 | Doc-Nr: PUB / 5071316 / 000 / 03
3
3
314703 English 17