Starting And Stopping; Operational Tips - Valex B8FF7EFA Instrucciones De Uso E Instrucciones De Seguridad

STARTING AND STOPPING

IMPORTANT! Before starting the electrical tool it is compulsory to
wear protection goggles, headphones and a dust repelling mask
(not provided).
IMPORTANT! Make sure nobody is approaching the working area
while the tool is running.
Starting
1) Plug the tool into the electric power supply.
2) Grip the main handle firmly (pos.2); for models with a double handle,
also grip the front handle (pos.6) or the upper handle (pos.19).
3) - Models with maintained action switch: to start up press the switch but-
ton (pos.4). The switch is a 'maintained action' switch so the electrical
tool will stay on when you keep the switch pressed.
- Models with on/off switch: to start up press the switch button (pos.4)
to "ON" "I".
Stopping
- Models with maintained action switch: to stop release the switch button.
- Models with on/off switch: to stop press the switch button to "OFF" "O".
Continuous operation (Fig.E when fitted)
For continuous operation it is necessary to press the retainer button (pos.
3, when fitted) so as to lock the switch after the start-up phases.
Then to stop the tool press the switch and release it immediately.
IMPORTANT! When working with the switch in continuous mode,
never let go of the grip on the main handle so that, in the event of
danger, you can immediately stop the tool.
We recommend repeating these operations several times before starting
work, in order to familiarise yourself with the controls as far as possible.
If you notice any working defects, switch off the electrical tool and consult
the chapter "Problems, causes and solutions".
When not using the tool, turn it off and disconnect the plug from the so-
cket.

OPERATIONAL TIPS

OPERATIONAL TIPS
After reading the previous chapters carefully, apply these tips scrupulously
to obtain maximum performance.
Proceed calmly so as to become familiar with all the controls; after ha-
ving gained sufficient experience you will be able to make full use of its
potential.
SPEED ADJUSTMENT (pos.17, when fitted)
Turn the grain roller in order to increase or decrease the speed. The speed
is to be adjusted based on the type of process, material and grain of the
abrasive support; do some tests.
ABRASIVE SUPPORT
Use the suitable abrasive support for the sanding operation to be carried
out. The choice depends on the material to be processed and the required
finishing degree; there are different types on the market marked with a
number defining the surface "grain", printed on the back. Ask your retailer
to give you the best advice on this. Our company produces a wide range
of abrasive supports suitable for the various uses.
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Material Operation
Wood, metal, plaster, Roughing out with
paint, plastic rough finish
Sanding with medium
finish
Sanding with fine finish
Polishing
SANDING OPERATION
- Before working on important objects (e.g. furniture, vehicles, etc.) do a
sanding test to ensure you have installed the right abrasive support.
- If the item is small and light always fasten it with a vice while working; if
it is not fastened well, the action of the machine could throw it against
you.
- Do not work on damp or wet items or with wet abrasive supports.
- Initially use an abrasive support with a coarse grain (e.g. 40), then fi-
nish processed surfaces with a finer grain abrasive support (e.g. 120
or higher).
- Make sure the abrasive support is correctly assembled and perfectly flat
against the orbital plate.
- Always use the sander connected to a vacuum system with a filter for
dust or to the bag provided.
- Only start the sander once you have a firm grip on the handle(s). Rest it
on the item and operate it with circular movements exerting light pressu-
re. Do not insist on sanding one point keeping the machine still.
- Excessive pressure with the hand(s) on the sander does not improve its
performance and causes a risk of the motor overheating with subse-
quent breakdowns not covered by the warranty, or can cause fire due to
the high temperatures produced on the item.
- Do not cover the sander's ventilation slots with your hand(s).
- Replace the abrasive support as soon as it is worn or deteriorated; do not
let the sander work under excessive loads, avoid damaging the backing
plate and you will obtain a better result with less effort and time.
MAINTENANCE
IMPORTANT! Before any inspection, adjustment or mainte-
nance, always disconnect the tool from the power supply by
unplugging it.
IMPORTANT! Do not tamper or attempt to repair the electrical
tool.
The working life and costs also depend on constant and meticulous main-
tenance.
Take good care of your electrical tool and clean it regularly. In this way its
efficiency will be ensured and its lifespan extended.
- Remove dust and machining residuals with a brush with soft bristles.
- Do not wet or spray water over the electrical tool - risk of internal infil-
trations.
- Do not use any inflammables, detergents or solvents.
- The plastic parts can easily be damaged by chemical agents.
- Do not use compressed air for cleaning: Risk of material ejection!
- Pay particular attention to cleaning the switch, the motor ventilation slots,
the holes on the backing plate and the abrasive support driving rollers.
- Empty and clean the dust collection bag.
- Remove any traces of wood resin.
ABRASIVE SUPPORT REPLACEMENT (fig.D)
- Velcro type: Turn the machine over, rip the abrasive support off the ba-
cking plate, clean, attach the new abrasive support, check that the sheet
is taut and that the holes correspond to the holes on the backing plate.
- Sheet type: Turn the machine over, open the tensioning device, extract the
Grain Numero
40
Coarse
60
80
Medium 100
120
from 150
Fine
to 400
Very fine 600 and
over