Sparky Group M 2000 HD, Original Instructions Manual

Page: 12 / 131

EN
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M 2000 HD MB 2000P HD MA 2000 HD MBA 2000P HD M 2200 HD MB 2200P HD MA 2200 HD MBA 2200P HD
M 2400 HD MB 2400P HD MA 2400 HD MBA 2400P HD MB 2600P HD MBA 2600P HD
(Fig.2b).
- Remove the wheel guard.
GRINDING WHEEL REPLACEMENT
WARNING: Before performing the fol-
lowing operations, switch off and unplug the
machine.
Secure spindle 1 by pressing the spindle lock
button 9 on the gear case.
WARNING: Never press button 9
while the spindle is still rotating!
With this button depressed rotate the wheel
in direction opposite to the arrow marked on
the wheel guard 3 until it has profoundly gone
deeper. Unscrew ixing lange 5 by a special
wrench. Place the new wheel on the sup-
port lange 4 with the inscriptions facing up,
and screw down lange 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 ixing lange 5 with
its lat side towards the wheel. If the wheel is
thicker than 6 mm, place the ixing lange 5
to the spindle so that the lange 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 suficient
to accept the spindle thread.
Grinding with sandpaper is performed with
plastic (rubber) backing pad 11, under which
sandpaper 12 is fastened. Place the lexible
backing pad 11 onto the support lange 4 and
fasten it with the lock nut 13, delivered with
the tool. In case the lexible backing pad is
equipped with a lange nut, the pad is screwed
directly onto the spindle by a wrench without
using the ixing lange 5. The pad with lange
may be a resin illed sponge, polyurethane
foam sponge with plastic insert for the lange
with hook-and-loop fastening to the sandpa-
per. After replacing the wheel, operate the
machine with the new backing pad in no load
mode for one minute. Vibrating or otherwise
improperly rotating backing pads must be re-
placed immediately and discarded.
AUXILIARY HANDLE (Fig.5)
Normally auxiliary handle 6 is screwed on the
machine left side. It can be screwed also on
the machine right side or top if this is more
convenient for the operator. The machines are
equipped with a third threaded socket for cou-
pling the auxiliary handle. The auxiliary 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 0 . This
way of mounting is implemented when the ma-
chine is used mainly for cutting-off operations.
In this case turning the machine case must be
carried out in an authorized service centre for
SPARKY power tools.
RECOMMENDATIONS
When cutting, do not apply pressure, do not os-
cillate the wheel. Work with moderate feed rate,
suited to the material to be machined.
The direction of cutting is very signiicant. The
machine must always be fed against the direc-
tion of wheel rotation. Otherwise, danger exists
for the wheel to be forced uncontrolled out of the
cut. (Fig. 6)
When cutting proiles or rectangular pipes it is
best to start with the smallest cross section.
When grinding do not apply pressure to the
processed surface by rearing down on the ma-
chine but move the wheel regularly backwards
and forwards. Special wheels shall be used for
processing non-ferrous metals. Best results
when roughing can be achieved with the wheel
inclined at 30
0
to 40
0
to the processed surface
(Fig. 7).
Never use cutting wheels for roughing opera-
tions. Usage of wheels thicker than 10 mm is
not recommended.
Maintenance
WARNING:
Always ensure that the
tool is switched off and unplugged before
attempting to perform inspection or mainte-
nance.