Virutex LPM97S, Operating Instructions Manual

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11. STARTING AND STOPPING THE MACHINE

Ensure the mains voltage is the same as indicated on the 
specifications plate and that the switch is off in the “O” 
position before plugging the machine in.
Push the trigger switch to start up the machine (I, Fig. 
1) and release it to stop it.
If you wish to keep the machine running constantly, you 
can set the switch lock (J, Fig. 1). To take off the switch 
lock, press the switch and then release it.
The machine does not stop immediately and the abrasive 
disc continues to turn for some time before stopping.
Ensure that it does not come into contact with anybody 
or anything and do not let go of the machine until the 
abrasive disc has completely stopped.

12. HOW TO USE THE MACHINE

To work safely and to remain in control of the machine 
at all times, you should always hold it with two hands.
The best way to do this is to hold the machine with one 
hand on the main handle, the one at the rear, and the 
other hand on the part of the column covered with the 
softgrip, or by using the D handle if it is fitted.
It is very important to stand firmly on both feet, parti-
cularly when working on platforms.

Sanding:

• If the wall sander and vacuum cleaner are ready, the 
safety measures have been taken and the necessary 
safety equipment is in use, the machine can be started 
first followed by the vacuum cleaner.
If you use the Virutex ASC482U vacuum cleaner or 
another vacuum cleaner with automatic built-in starting, 
you will only have to start up the machine.
• Place the machine on the surface you are going to 
sand, making smooth contact with the latter and with 
minimum pressure in order to keep the sanding head 
flat against it.
• You can now reset the speed to the ideal speed for 
the work to be done.
• The articulated head allows the abrasive disc to follow 
the contours of the work surface.
• Do not overload the machine by applying excessive 
pressure.
The best sanding results are achieved with moderate 
pressure. Sanding quality and performance mainly 
depend on the right choice of abrasive disc.
• The best sanding technique consists in long strokes 
back and forth, keeping the head in constant motion. 
Do not let the machine stop in the same place, since it 
will leave marks on the surface.
• Turn the machine off when the sanding work has 
finished.

Sanding near the edges:

• The sander has an extractable head cover section that 
makes it possible to reduce the distance at the side 
between the wall/ceiling and the sanding plate. (Fig. 10)

• When the machine is working without the head cover 
section, the vacuum cleaner loses effectiveness, so it 
should only be extracted when necessary and should 
be refitted as soon as possible.

• To take off the cover section:

  • Unplug the machine.
  • Press between the two snap rings fastening the 
section and take it off its mount (Fig 10).
  • Keep the extracted section close at hand in a safe 
place to be able to fit it on again.
  • Proceed in the same way to fit the section.

Recommendations:

Ensure you use the best disc for the sanding to be done. 
If the abrasive discs are too coarse-grained they remove a 
lot of material as they work; this is sometimes too much 
and makes it difficult to control, while those that are 
too fine-grained tend to get easily muffled.
Try to avoid sharp points and nails when sanding, as these 
can damage the abrasive disc and even the sponge plate.

13. MAINTENANCE AND CLEANING

Turn the machine off at the mains before performing 
any operation.
• All maintenance work or repairs on the machine that 
require the motor casing to be opened can only be carried 
out by an authorised official service centre.
• Regularly check the state of the lead and the plug, and 
change them if they are damaged using an authorised 
official service.
• Always keep the air circulation windows on the casing 
clean to ensure motor cooling.
• Clean the dust collector tube connection with the 
plate cover so that it is not obstructed.

Changing brushes:

Brushes should be changed when they have a minimum 
length of 6 mm.
• To inspect or replace the brushes, first turn the machine 
off at the mains.
• Remove the vacuum tube and take off the right and 
left handles by removing the screws (K, Fig. 10) that 
attach them.
• Unscrew the two screws (L, Fig. 10) that fasten them 
to the electronic circuit and move the latter to one side, 
being careful not to damage the circuit connections.
• Unscrew the two screws (M, Fig. 11) attaching the 
brush-holder. 
• Inspect or change the brushes if necessary.
• It is advisable to allow the machine to run for a few 
minutes with no load after changing the brushes.

14. ACCESSORIES AND SANDING DISCS

Only use original Virutex accessories and consumable 
items designed for this machine.