stayer MULTI DRILL 130 Manual De Instrucciones página 18

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, sha-
ping, cutting dadoes or rabbets in wood.
Hardwoods, metals and glass require high speed opera-
tion, 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 effecti-
ve 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 temperatu-
res should be cut at low speeds.
2. Polishing, buffing and cleaning with any type of brist-
le 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 ad-
justment in speed would solve the problem. Leaning on
the tool does not help.
Let speed do the work!
Maintenance lnformation
Service
Preventive maintenance per formed by unauthorized
personnel may result in misplacing of internal wires and
components which could cause serious hazard. We re-
commend that all tool service be performed by a STAYER
authorized service.
To avoid injury from unexpected starting or electrical
shock, always remove plug from wall outlet before perfor-
ming service or cleaning.
Carbon brushes
The brushes and commutator in your tool have been engi-
neered 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.
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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 origi-
nal 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, lo-
ses power, makes unusual noises ar runs at a reduced
speed, check the brushes.
To continue using the tool in this condition will per-
manently 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 brus-
hes:
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.
Usually the brushes will not wear out simultaneously. lf
one brush is worn out, replace both brushes. Make sure
the brushes are installed as illus trated. The curved surfa-
ce of the brush must match the curvature of the commu-
tator.
3. After replacing brushes the tool should be run at no-
load; place it on a clean surface and run it freely at full
speed far 5 minutes befare loading (ar using) the tool. This
will allow the brushes to "seat" properly and will give you
more hours of life from each set of brushes. This will also
extend the total life of your tool since the com mutator
surface will "wear" longer.
Bearings
This model features a double ball bearing construction.
Under normal use they will not require lubrication.
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