Correct Use - Hilti WFO 280 Manual De Instrucciones

4. Correct use

The machine is designed for working on the
surface of materials such as wood, paint, lac-
quer, filler, metal and plastic. The user of the
machine carries the responsibility for any
damage caused by misuse, e.g. carrying the
machine by the supply cord, pulling the plug
out of the socket by pulling on the supply cord
or use of the wrong sanding sheets. The list
of safety precautions and generally accepted
accident prevention regulations for working
with electric tools must be observed.
10
Printed: 25.11.2015 | Doc-Nr: PUB / 5071315 / 000 / 02
5. Using the sander
Fitting sanding sheets with Velcro-type
attachment pads (fig.1).
Disconnect the supply cord plug from
the mains socket before beginning any
work on the machine.
The Velcro-type attachment pads
enable sanding sheets to be changed
quickly, without the use of addition-
al tools.
Clean dust and dirt from the sanding plate 9
before fitting a new sanding sheet. When fit-
ting a sanding sheet, check that the perfora-
tions in the sheet are in alignment with the
holes in the sanding plate.
Always ensure that the clamping bar is in the
closed position when the machine is in use.
If the clamping bar is loose, it may cause dam-
age to the casing of the machine
Use only original Hilti sanding sheets with
Velcro-type attachment pads.
Fitting sanding sheets without Velcro-type
attachment pads (using the clamping bar)
(fig .2)
Release the clamping bar by lifting
both rounded ends 8. Remove the
old sanding sheet and insert a new
sheet. Push the clamping bar 10 down so
that the sanding sheet is held in place. Make
sure that the clamping lever is engaged at
both sides.
When fitting a sanding sheet, check that the
perforations in the sheet are in alignment with
the holes in the sanding plate.
Replacing the clamping bar (fig.3)
Disconnect the supply cord plug from
the mains socket before beginning any
work on the machine.
Release the clamping bar by lifting both
rounded ends 8. Pull the clamping bar for-
wards, lift it slightly, press both ends
together using the thumb and index finger
and pull the clamping bar forwards out of
the casing of the machine.
To fit a new clamping bar, repeat these steps
in the reverse order.
Replacing the sanding plate (fig.4)
Use a Torx-type wrench or screwdriver to
remove the 8 screws with combination Torx-
type/cross-recess heads 17 and lift away the
sanding plate.
Position the required sanding plate on the
machine and insert and tighten the 8 screws.
Operation
Hold the machine securely and main-
tain a secure stance.
The mains supply voltage must correspond
to the information printed on the rating plate.
Switching the machine on / off
Ensure that the machine is switched off
before connecting the supply cord plug to
the mains supply.
Switching on: Depress the ON/OFF switch
4 and hold it in the depressed position.
Switching off: Release the ON/OFF switch
4
Continuous operation
Switching on: Depress the ON/OFF switch
4 and press the lockbutton 5 while the switch
is depressed.
Switching off: Press and release the ON/OFF
switch 4
Oscillation rate pre-selection
The required rate can be pre-selected by turn-
ing the thumbwheel 3.
1 6
low high
The pre-selected oscillation rate remains
almost constant, even under load, thanks to the
machine's built-in electronics.
The optimum oscillation rate depends on the
material being sanded and should be determined
by conducting tests. (Please refer to the infor-
mation provided with the sanding sheets and
the applications table.)