Dremel 8260 Original Instructions Manual page 24

GETTING STARTED
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.
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
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.
For best control in close work, grip the multitool like a
pencil between your thumb and forefinger. The "golf"
grip method is used for heavier operations such as
grinding or cutting.
ON/OFF
The tool is switched "ON" by the slide switch located
on the top side of the motor housing.
TO TURN THE TOOL "ON", slide the switch button
forward.
TO TURN THE TOOL "OFF", slide the switch button
backward.
ELECTRONIC MONITORING
Your tool is equipped with an internal electronic
monitoring system that provides a "soft start", which
will reduce the stresses that occur from a high torque
start. The system also helps to maximize motor and
battery performance by cutting the voltage to the tool
when stall conditions (see section "Stall Protection")
occur. The motor and battery pack are protected
by cutting back the voltage to the motor in these
situations.
LEARN THE SPEEDS
After the tool has been turned off:
• If you turn it back on within 5 minutes, the tool will
turn on at its last set speed setting.
• If turned on after 5 minutes, the tool will turn on at
its default speed setting of 15,000 RPM.
VARIABLE SPEED DIAL
Your tool is equipped with a variable speed slide
switch. The speed may be adjusted during operation
by sliding the switch back or forth between any one of
the settings.
To select the right speed for each job, use a
practice piece of material.
OPERATING SPEEDS
A a
Refer to the chart on pages 17-18 to help determine
the proper speed for the material being worked on and
the accessory to use.
Do not exceed 15,000 rpm when using wire brushes.
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 for you
when using lower speed settings. Higher speeds are
better for hardwoods, metals and glass and for drilling,
carving, cutting, routing and shaping.
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 no 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 slowly.
• 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.
MANAGING SPEED SETTINGS IN THE APP
You can preselect a speed between 5,000 – 30,000
RPM on the Dremel App.
• Once you have chosen your desired speed on
the app, the corresponding speed will blink for 10
seconds on the speed indicator J on the tool 7.
• You must turn on the tool within 10 seconds
otherwise the tool will turn on at its default speed
setting of 15,000 RPM.
LEARN THE LED BEHAVIOR
If you turn off the tool with the battery still connected
the tool LEDs will behave as follows:
• The Bluetooth LED will remain illuminated for 5
minutes as long as your tool is still connected to
your smart device.
• The Speed LED will remain illuminated for 5
minutes to show the last set speed setting.
• The Warning, Battery Gauge, and Dremel Logo
LEDs will remain illuminated for 30 seconds.
To turn off all LEDs, turn off the tool and remove
the battery pack.
RED WARNING LED
The red warning LED H will illuminate for one of the
following reasons:
• Excessive tool temperature: turn the tool off and
remove the accessory (Be careful – the accessory
may be hot). Then turn the tool on and allow it to
run without load so the motor's fan can help cool
down the tool.
• Excessive battery temperature: turn the tool off,
remove the battery pack and allow the battery
to return to normal operating temperature before
resuming use.
• Tool stall / overload warning: too much pressure is
being applied to the tool. Reduce pressure to hold
and guide the tool. Allow the speed of the tool to
do the work.
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