Normfest WSK2000W Instrucciones De Uso página 20

ting disc and the direction of rotation of the machine
(see direction-of-rotation arrow on the machine head)
agree.
▪ Make sure the grinding wheel diameter and thickness
do not exceed the values specified on the name plate.
The peripheral speed indicated on the wheel must not
be less than 80 m/s. The wheels must be stored ac-
cording the recommendations of the manufacturer.
▪ In case the work area is remote from the power
source, use as short as practicable extension cord
with proper cross-section.
▪ Check that the auxiliary handle is properly mounted
and reliably tightened.
SWITCHING ON - SWITCHING OFF
The angle grinder is secured against unintentional
switching on.
Switching on: First push forward the auxiliary button 8
positioned at the bottom of the main handle, then press
ON/OFF switch 7. For continuous operation switch 7 can
be locked. In this case while holding switch 7, press but-
ton 8 and then release switch 7.
Switching off: Release switch 7; in case the switch is
locked, first press and then release that switch.
WHEEL GUARD
WARNING: The wheel guard 3.1 for grinding
wheel or the wheel guard 3.2 for cutting wheel (for
grinding wheel 2.1 or cutting wheel 2.2 accordingly)
must always be mounted on the machine!
WARNING: Before performing the following
operations, switch off and unplug the machine.
Mounting the wheel guard (Fig. 1)
- Rotate the black plastic ring (Fig. 2a), so that the
crevice S of the ring coincides with the groove for
the tooth of the fixing lever L.
- Place the wheel guard in non-operating position
(Fig.2a) so that the four teeth coincide with the four
grooves in the bearing seat (Fig.2b).
- Press the fastening lever L (Fig.3) to release it.
- Press the wheel guard down and rotate it in the
necessary operating position (Fig.4).
- Release the fastening lever L to a stable position in
which the wheel guard is fixed (the fixing lever tooth
enters into one of the guard grooves).
Rotating the wheel guard in a new operating posi-
tion
- Press the fastening lever L (Fig.3) to release it.
- Rotate the wheel guard to the necessary operating
position.
- Release the fastening lever L to a stable position in
which the wheel guard is fixed (the fixing lever tooth
enters into one of the guard grooves).
Removing the wheel guard
- Press the fastening lever L (Fig.3) to release it.
- Rotate the wheel guard in non-operating position
(Fig.2a) so that the four teeth coincide with the four
18
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grooves in the bearing seat (Fig.2b).
- Remove the wheel guard.
GRINDING WHEEL REPLACEMENT
WARNING: Before performing the following
operations, switch off and unplug the machine.
Secure spindle (1) by depressing the spindle lock button
(9) provided on the gear case.
WARNING: Never press button (9) while the
spindle is still rotating!
▪ With this button depressed rotate the wheel in direc-
tion opposite to the arrow marked on the wheel guard
3 until it has profoundly gone deeper. Unscrew fixing
flange 5 by a special wrench. Place the new wheel on
the support flange 4 with the inscriptions facing up,
and screw down flange 5 using the lock nut wrench.
Use blotters if the wheel has been delivered with
them. If the wheel thickness is less then 6 mm, place
the fixing flange 5 with its flat side towards the wheel.
If the wheel is thicker than 6 mm, place the fixing
flange 5 to the spindle so that the flange step enters
the wheel opening. After replacing the wheel, operate
the machine with the new wheel in no load mode for
one minute. Vibrating or otherwise improperly rotating
wheels must be replaced immediately and discarded.
▪ The cup brush 10 is screwed directly on spindle 1 by
means of an open-end wrench. Check if the brush
thread length is sufficient to accept the spindle thread.
▪ Grinding with sandpaper is performed with plastic
(rubber) backing pad 11, under which sandpaper 12
is fastened. Place the flexible backing pad 11 onto the
support flange 4 and fasten it with the lock nut 13, de-
livered with the tool. In case the flexible backing pad
is equipped with a flange nut, the pad is screwed di-
rectly onto the spindle by a wrench without using the
fixing flange 5. The pad with flange may be a resin
filled sponge, polyurethane foam sponge with plastic
insert for the flange with hook-and-loop fastening to
the sandpaper. After replacing the wheel, operate the
machine with the new backing pad in no load mode for
one minute. Vibrating or otherwise improperly rotat-
ing backing pads must be replaced immediately and
discarded.
AUXILIARY HANDLE (FIG.5)
Normally auxiliary handle (6) is screwed on the machine
left side. It can be mounted also on the machine right
side if this is more convenient for the operator. The aux-
iliary handle for these models is connected to the body
of the machine through vibration dampers, protecting the
operator and reducing fatigue.
TURNING THE MACHINE CASE
The machine case can be turned to 90°. This way of
mounting is implemented when the machine is used
mainly for cutting-off operations. In this case turning the
WSK2000W