stayer MULTI DRILL 130 Manual De Instrucciones página 21

Needs for Slower Speeds
Certain materials, however, (sorne plastics and precious
metals, for ex ample) require a relatively slow speed
because at high speed the friction of the accessory
generates heat and may cause damage to the material.
Slow speeds (8.000 RPM) usually are best for polishing
operations employing the felt polishing ac ces sories.
They may also be best for working on deli cate projects
as "eggery" work, delicate wood carving and fragile
model parts. (AII brushing applications require lower
speeds to avo id wire discharge from the holder.).
Higher speeds are better for carving, cutting, routing,
shaping, cutting dadoes or rabbets in wood.
Hardwoods, metals and glass require high speed
operation, and drilling should also be done at high
speeds.
Ultimately, the best way to determine the correct speed
for work on any material is to practice for a few minutes
on a piece of scrap, even after referring to the chart. You
can quickly learn that a slower or faster speed is more
effective just by observing what hap pens as you make
a pass or two at different speeds. When working with
plastic, for example, start at a slow rate of speed and
increase the speed until you observe that the plastic is
melting at the point of contact. Then reduce the speed
slight ly to get the optimum working speed.
Sorne rules of thumb in regard to speed:
1 Plastic and other materials that melt at low
temperatures should be cut at low speeds.
2 Polishing, buffing and cleaning with any type of
bristle brush must be done at speeds not greater
than 8.000 RPM to prevent damage to the brush.
3 Wood should be cut at high speed.
4
lron or steel should be cut at low speed.
5 Aluminum, copper alloys, lead alloys, zinc alloys
and tin may be cut at various speeds, depending on
the type of cutting being done. Use paraffin or other
suitable lubricant on the cutter to prevent the cut
material from adhering to the cutter teeth.
lncreasing the pressure on the tool is not the answer
when it is not performing as you think it should. Perhaps
you should be using a different accessory, and perhaps
an adjustment in speed would solve the problem.
Leaning on the tool does not help.
Let speed do the work!
MAINTENANCE LNFORMATION
5.
Service
Preventive maintenance per formed by unauthorized
personnel may result in misplacing of internal wires
and components which could cause serious hazard.
We recommend that all tool service be performed by a
STAYER authorized service.
ENGLISH
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To avoid injury from unexpected starting or electrical
shock, always remove plug from wall outlet before
performing service or cleaning.
Carbon brushes
The brushes and commutator in your tool have been
engineered far many hours of dependable service.
In arder to prepare your brushes far use, run your tool at
full speed far 5 minutes under no load.
This will properly "seat" your brushes, which extends the
life of both your brushes and your tool.
To maintain peak efficiency of the motor, we recommend
every 40 - 50 hours the brush es be examined. Only
original replacement brushes specially designed far your
tool should be used.
Maintenance of replaceable brushes
The brushes should be inspected frequently when tools
are used continuously. lf your tool runs spo rad ically,
loses power, makes unusual noises ar runs at a reduced
speed, check the brushes.
To continue using the tool in this condition will
permanently damage your tool.
Siga estos pasos para revisar y cambiar las escobillas
de la herramienta rotatoria.
Follow these steps to check/change the rotary tool
brushes:
1
With the power cord unplugged, place the tool on a
clean surface. Use the tool wrench as a screwdriver
to remove the brush caps in a counter-clockwise
direction.
2 Remove the brushes from the tool by pulling on the
spring that is attached to the carbon brush. lf the
brush is less than 1 /8" long and the end surface of
the brush that contacts the commutator is rough and/
or pitted, they should be replaced.
Check both brushes.
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