CHANGING COLLETS
PICTURE 4
Q. Shaft Lock Button
R. Collet Wrench
S. To tighten
T. To loosen
U. Collet Nut
1. Press the shaft lock button, hold down and rotate the
shaft by hand until it engages the shaft. Do not engage the
shaft lock button while multitool is running.
2. With the shaft lock button engaged, loosen and remove
the collet nut. Use the collet wrench if necessary.
3. Remove the collet by pulling it free from the shaft.
4. Install the appropriate size collet fully into the shaft and
reinstall the collet nut finger tight. Do not fully tighten the
nut when there is no bit or accessory installed.
GETTING STARTED
USE
The first step in using the multitool is to get the "feel" of it.
Hold it in your hand and feel its weight and balance. Feel the
taper of the housing. This taper permits the tool to be grasped
much like a pen or pencil.
Always hold the tool away from your face. Accessories can be
damaged during handling and can fly apart as they come up to
speed.
When holding tool, do not cover the ventilation openings with
your hand. Blocking the ventilation openings could cause the
motor to overheat.
IMPORTANT! Practice on scrap material first to see how the
tool's high-speed action performs. Keep in mind that your
multitool will perform best by allowing the speed, along with the
correct Dremel accessory and attachment, to do the work for
you. Do not put pressure on the tool during use, if possible.
Instead, lower the spinning accessory lightly to the work surface
and allow it to touch the point at which you want to begin.
Concentrate on guiding the tool over the work using very little
pressure from your hand. Allow the accessory to do the work.
Usually it is better to make a series of passes with the tool
rather than to do the entire job with one pass. A gentle touch
gives the best control and reduces the chance of error.
HOLDING THE TOOL
For best control in close work, grip the multitool like a pencil
between your thumb and forefinger. PICTURE 6
The "golf" grip method is used for heavier operations such as
grinding or cutting. PICTURE 7
GB
CHANGING ACCESSORIES
PICTURE 4/5
Q. Shaft Lock Button
1. Press the shaft lock button and rotate the shaft by hand
until it engages the shaft lock. Do not engage the shaft
lock button while multitool is running.
2. With the shaft lock button engaged, loosen (do not
remove) the collet nut. Use the collet wrench if necessary.
3. Insert the bit or accessory shank fully into the collet.
4. With the shaft lock button engaged, finger tighten the collet
nut until the bit or accessory shank is gripped by the collet.
NOTE: Be sure to read the instructions supplied with your
Dremel accessory for further information on its use.
Use only Dremel tested, high performance accessories.
OPERATING SPEEDS
This tool is a high speed multitool. The digital display of the
400 Series DIGITAL tool shows the exact number of RPM (x
1.000) at which the tool is running. To increase / decrease the
speed push the speed up / down buttons. The speed of your
multitool can be increased and decreased in 1.000 RPM
increments. This allows you to control the speed of your
multitool very accurately. Adjusting the no. of RPM to your
project will give a better end result. To achieve the best results
when working with different materials, set the variable speed
control to suit the job. To select the right speed for the
accessory in use, practice with scrap material first.
NOTE: Speed is affected by voltage changes. A reduced
incoming voltage will slow the RPM of the tool, especially at
the lowest setting. If your tool appears to be running slowly,
increase the speed setting accordingly. The tool may not start
at the lowest switch setting in areas where outlet voltage is
less than 220 volts. Simply move the speed setting to a higher
position to begin operation.
Refer to the Speed Settings chart on pages 4-6 to help
determine the proper speed for the material being worked on
and the accessory to use.
A) For use on drywall. For best results use at 33.000 RPM.
B) For use on wall and floor grout. Use setting 20.000-28.000
RPM.
*) Speed for light cuts. Caution, burning on deep grooves
possible.
■
)Depending on cutting direction relative to grain.
Most jobs can be accomplished using the tool at the highest
setting. However, certain materials (some plastics and metals)
can be damaged by high-speed generated heat and should be
worked on at relatively low speeds. Low speed operation
(15,000 RPM or less) is usually best for polishing operations
employing the felt polishing accessories. All brushing
applications require lower speeds to avoid wire discharge
from the holder. Let the performance of the tool do the work
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for you when using lower speed settings. Higher speeds are
better for hardwoods, metals and glass and for drilling,
carving, cutting, routing, shaping and cutting dadoes or
rabbets in wood.
Some guidelines regarding tool speed:
•
Plastic and other materials that melt at low temperatures
should be cut at low speeds.
•
Polishing, buffing and cleaning with a wire brush must be
done at speeds not greater than 15,000 RPM to prevent
damage to the brush and your material.
•
Wood should be cut at high speed.
•
Iron or steel should be cut at high speed.
•
If a high speed steel cutter starts to vibrate, it usually
indicates that it is running too slow.
MAINTENANCE
Preventative maintenance performed 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 Dremel
Service Facility. To avoid injury from unexpected starting or
electrical shock, always remove plug from wall outlet before
performing service or cleaning.
CARBON BRUSHES
The brushes in your tool have been engineered for many
hours of dependable service. To prepare the brushes for use,
run the tool at full speed for 5 minutes under no load. This will
properly "seat" the brushes, and extend the life of the tool. To
maintain peak efficiency of the motor, examine the brushes for
wear every 40-50 hours.
Using the tool with worn brushes will permanently damage the
motor. Use only original Dremel replacement brushes.' Inspect
the multitool brushes after 40-50 hours of use. If the multitool
runs erratically, loses power, or makes unusual noises check
the brushes for wear and possible replacement. Follow these
steps to check/change the multitool brushes:
1. With the power cord unplugged, place the tool on a clean
surface. Use the tool wrench to remove the brush caps.
PICTURE 8.
2. Turn the tool so that the brush falls out of the holder and
check each brush. If the brush is less than 3mm long and the
surface of the brush that touches the commutator is rough
or pitted, the carbon brushes should be replaced. Be sure to
check both brushes. PICTURE 9
3. If one brush is worn, you should replace both brushes for
better performance of your multitool. Remove the spring
from the brush, throw away the old brush and place the
spring on a new brush.
GB
•
Aluminium, copper alloys, lead alloys, zinc alloys and tin
may be cut at various speeds, depending on the type of
cutting being done. Use a paraffin (not water) or other
suitable lubricant on the cutter to prevent the cut material
from adhering to the cutter teeth.
NOTE: Increasing pressure on the tool is not the answer when
it is not performing properly. Try a different accessory or
speed setting to achieve the desired result.
4. Place the carbon brush and spring back into the tool, there
is only one way the brush will fit back into the tool. Make
sure the brushes are installed as illustrated. PICTURE 9
The curved surface of the brush must match the curvature
of the commutator.
5. Rest squared unterside of the brush door on the squared
cavity openings. Check to be sure the spring rests on the V
groove of the brush. Push the front of the door down. The
push down and snap the rear latch into its slot. After
replacing the brushes the tool should be run at no load;
place it on a clean surface and run it freely at full speed for
5 minutes before loading (or 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
life of your tool since the commutator surface will also
wear better and longer. PICTURE 10
CLEANING THE TOOL
DISCONNECT THE PLUG BEFORE CLEANING
Ventilation openings and switch levers must be kept clean and
free of foreign matter. Do not attempt to clean by inserting
pointed objects through openings.
The tool may be cleaned with compressed air. Always wear
safety goggles when cleaning tool with compressed air.
There is no need to lubricate the Dremel multitool.
Certain cleaning agents and solvents will damage plastic parts.
Some of these are: gasoline, carbon tetrachloride, chlorinated
cleaning solvents, ammonia and household detergents that
contain ammonia.
Clean the "soft grip" areas of the tool using a damp cloth.
Tougher soiled areas may require more than one wipe
application to get clean.
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