Kunzle & Tasin STORNELLO 7699950001 Operator's manual

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Designed and engineered by Künzle & Tasin S.r.l.
PRECISION VERTICAL SANDER
Operating Manual and Safety Instructions
STEN118

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3
Operating Manual STORNELLO®
Foreword
This manual contains important information on the safe use and operation of
this machine.
Failure to read this manual before operating, adjusting or servicing this
machine could cause injury or damage to person or objects.
Anybody operating the machine should understand how to use and operate it
before starting up it.
Keep this manual for future reference.
This manual is an ENGLISH translation of the original version in Italian.
For a new manual contact:
Kunzle & Tasin S.r.l.
BUSINESS MANAGEMENT AND PRODUCTION SITE
Via Cajkovskij, 14
20092 Cinisello Balsamo (MI) - Italia
Tel. [phone]
Fax [phone]
[e-mail]
www.kunzletasin.com

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Operating Manual STORNELLO®
Table of contents
Pictograms legend
5
Operator safety
5
Storage
6
Introduction
6
Safe and correct use
6
Machine data plate
6
Commencing operation
7
Instructions for electrical connection
7
Cable,extension and plugs
7
Removing sawdust generated during use
8
Prevention measures for users
8
Personal safety measures
8
Compliance with safety measures and warnings
8
General Power Tool Safety Warnings
11
Safety instruction for all operations
12
Additional safety instructions for sanding operations
14
Additional safety instructions for polishing operations
14
Instruction on correct machine use
15
Machine specifications
15
Machine warnings
16
Prohibited use
16
Starting the machine
16
Machine Adjustment procedures
17
Adjusting the sanding pressure and/or inclination of the plate
17
Tool speed adjustment
18
Setting plate or other sanding tool
18
Procedures for disassembly and replacement of the plate
18
Routine maintenance
19
Graphite brushes (for the user)
19
Cleaning spherical wheel (for the user)
19
Replacing front spherical wheels (for the user)
19
Replacing rear spherical wheel (for the user)
20
Spare parts
20
Use of the flap disc
20
Assembly sequence of the Flap Disc
20
Emergency situations (for the user)
21
Declaration of property
22
Declaration of conformity
22
Disposal
23

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Operating Manual STORNELLO®
Pictograms legend
PLEASE READ THE INSTRUCTION IN THE
MANUAL AND MAINTENANCE BEFORE USING
THE MACHINE
DURING USE IT’S RECOMMENDED
TO PROTECT YOUR HEARING
DURING USE IT’S RECOMMENDED
TO PROTECT YOUR EYES
DURING USE IT’S RECOMMENDED
TO PROTECT RESPIRATORY
DANGER ELECTRICITY
DANGER MOVING PARTS
Operator safety
HAZARD
means Serious injury or death may occur to the operator or others if
‘HAZARD’ warnings on the machine or in this manual are ignored or
not kept to. Read and follow all ‘HAZARD’ warnings on this machine
or in this manual.
WARNING
means
Injury may occur to the operator or others if ‘WARNING’ notice on
the machine or in this manual are ignored or not kept to. Read and
follow all ‘WARNING’ notices on the machine or in this manual.
CAUTION
means
Damage may occur to the operator or others if ‘CAUTION’ alerts on
the machine or in this manual are ignored or not kept to. Read and
follow all ‘CAUTION’ alerts on this machine or in this manual.

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Operating manual STORNELLO®
Storage
It is advisable to store the machine without removing it from home. The trolley, provided with the machine, protects it
from moisture. Furthermore, you can form a three-trolley column to maximum one above the other.
If the machine is removed from the original and is not used for a long time, it should ensure that the pad does not
remain in contact with the ground. Then you need to set and return the machine to the original position, with flat disc,
by rotating the control wheel inclination towards "-" until the stop, to prevent the plate from being deformed and that
the subsequent processing found not optimal.
CAUTION
This device, when equipped with suction, is only for dry use and should not be used or kept on the outside in
humid conditions, while if devoid of the suction plate can be used with water.
In both cases, do not immerse the machine in water and do not wet the engine body. Store the machine in a dry
place, otherwise you may damage the machine. The storage temperature is from -20 ° C to 50 ° C.
Introduction
Safe and correct use
Please read carefully and in its entirety, this instruction manual before using for the first time the sander machine
STORNELLO®.
The operating manual contains important safety information and to prevent improper use of the machine. It can
answer many doubts or questions so you can work with the machine easily and safely. The removal of the safety
protections may involve risks to life and limb. Familiarize yourself with the machine before starting work.
If there is or is assumed a situation not described in this manual, please contact:
Kunzle & Tasin S.r.l.
The sander machine STORNELLO®is suitable for sanding wood surfaces, metal and glass. Any other use without
the consent of the manufacturer is not allowed.
See also "unauthorized use."
Keep hands and clothing from moving parts!
The work area is protected by means of the base, which in addition to the support function and pressure adjustment
and tilt plate, sheltering from the abrasive disc.
Machine data plate
The following information can be found on the machine data plate:
1. Type of machine and system code
2. Motor power
3. Frequency
4. Supply voltage
5. Name of the manufacturer
6. Year of manufacture (see 12)
7. Insulation class
8. Weight
9. Rated current
10.Rated speed
11.Rated capacity
12.Serial number
- The first two numbers refer to the year of manufacture (16 = 2016)
- The second group of three numbers, indicates the day of the year the machine was manufactured (029 = January
29)
- The last two numbers indicate the progressive number of machines produced that day of manufacture (16 = sixteenth
machine).
1
2
3
4
5
6
8
7
9
12
10
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Operating manual STORNELLO®
Commencing operation
HAZARD
Using the machine when not fully assembled may cause injury or damage to people or
objects. Do not use the machine when it is not fully assembled. Keep all fittings tightly
closed. Maintain machine settings in accordance with the specifications.
Instruction for electrical connection
CAUTION
This machine only operates with the voltage and frequency shown on the machine data
plate. Before connecting the cable to the power supply ensure the correct voltage and
frequency are available.
WARNING
Do not expose the machine to rain. This machine, when suction is supplied, is intended
for dry use only. The machine can work with water splashes in the contact zone between
the sanding surface and the plate when it is not equipped with suction.
Do not immerse cables and other electrical components in water.
Keep the machine in a dry building and do not use it in damp or wet places.
WARNING
If the machine is not connected correctly to the electricity network, death due to
electrocution may occur. To prevent electrical shock always use a grounded three wire
electrical system. For maximum protection against electric shocks use a circuit protected
with a differential cut-out switch.
WARNING
Tampering with the grounding plug in any way may result in death from elctrocution.
Do not cut, remove or break the grounding plug. If the socket does not match the plug
consult a qualified electrician.
WARNING
Do not use the machine if the switch does not open and close.
HAZARD
If the machine is used with the plug or power cable, death may occur from electrocution.
If cables or plugs are worn or damaged in any way, have them replaced by the
manufacturer or by the technical service K&Tor by a person with similar qualifications,
in order to prevent risks to safety.
Cables, extensions and plugs
Use only approved cables. The maximum recommended cable length is 10 meters; for greater lengths use cables with
a larger cross-section.
CAUTION
Using the machine with unsuitable cable cross-section and/or excessively long cables
may cause injury or damage to people or objects.
WARNING
The machine must never be moved using its cable and the cable must never be pulled
when disconnecting from the socket.
WARNING
Keep the cable away from source of heat, oil and sharp edges.
WARNING
MACHINE WITH 230V
∼
50Hz MOTOR
The power supply cable must be approved HAR designation HO5VV-F 2x0,75 mm2
For versions other than the European consult an authorized K&Tdistributor.

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Operating manual STORNELLO®
Commencing operation
Removing sawdust generated during use
HAZARD
Sawdust can ignite spontaneously and cause injury or damage. The sanding dust must
be appropriately disposed of.
Always empty sawdust into metal containers which are placed outside of the buildings.
HAZARD
Empty the contents of the bag for
the powder when it is 1/3 full.
Empty the dust bag each time you
have finished using the machine.
Never leave the dust bag when it
contains sawdust. Do not spill the
contents of the bag to the dust over
a fire.
Prevention measures for users
Personal safety measures
WARNING
Sawdust can spread through the air and be inhaled when using the sander. Always wear
a dust mask when using the sanding and grinding equipment .
WARNING
The eyes and/or body may suffer injury if personal safety clothing and protective
equipment is not used. Always wear safety glasses, protective clothing and dust mask
during sanding operations.
WARNING
Lengthy exposure to noise levels during sanding operation may damage the hearing.
Always use ear protectors during sanding operations.
CAUTION
Never become distracted during sanding operations, check what is happening
continually. Use common sense. Do not use the machine when tired.
Compliance with safety measures and warnings
HAZARD
Using the machine when not fully assembled may cause injury and damage to people or
objects. Do not use the machine when it is not fully assembled. Keep all fittings tightly
closed. Maintain machine settings in accordance with the specifications.
HAZARD
Using the sander without the safety guards and covers in position may cause injury or
damage. Always ensure that all safety guards and covers are in position and secured
well.
HAZARD
The sanding machine may create an explosive environment. Cigarettes, cigars, pipes,
lighters, pilot flames, or any other source of fire may create an explosion if lit during
sanding operation. No sources of fire should be must be kept near the work area.
HAZARD
Poorly ventilated work areas may create an explosive environment when some
combustible materials are present in the atmosphere, such as solvents, thinners,
alcohols, fuels, some paints, wood dust or other combustible materials. Sanding
operations may cause various materials and fumes to ignite. Read the manufacturer's
instructions for each chemical product used and establish its combustibility. Always keep
the work area well-ventilated.

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Operation manual STORNELLO®
Prevention measures for users
Compliance with safety measures and warnings
HAZARD
Striking nails when sanding may generate an explosion or fire. Always ensure all nails
are sunk before sanding surfaces.
HAZARD
Serious damage may occur if the power supply circuit trips repeatedly or is undersized.
Have the fuses, safety circuit and power supply line checked by an authorized electrician.
HAZARD
Performing maintenance and/or repairing the machine when it is not fully disconnected
from the power supply may cause death due to electrocution. Disconnect the power
supply before carrying out any maintenance and/or repair work.
HAZARD
The use of this machine on a circuit which is not grounded may cause death due to
electrocution. Never disconnect or disable the grounding conductor. Consult an
electrician if the ground conductor is missing or it is suspected that the circuit is not
suitably grounded.
HAZARD
The use of this machine with a damaged power supply cable may cause electric shock.
Check the power supply cable regularly for damage, such as splitting or wear and tear.
Do not use the machine if the power supply cable is damaged. Do not use the electric
cable to move the machine.
HAZARD
Injury or damage may occur if the sander machine runs over the power supply cable and
it becomes damaged. Keep the cable away from the lower part of the machine to avoid
contact with the tool or the abrasive. Always keep the power supply cable raised above
the machine.
HAZARD
The moving parts of this machine may cause serious injury and/or damage. Keep hands,
feet and loose clothing away from all moving parts of the sander machine.
HAZARD
Performing maintenance or replacing the dust bag may cause injury to the operator and/
or people nearby if the machine is connected to the power supply.
HAZARD
Do not immerse the machine in water. The use of the machine provided with suction
(version WOOD and METAL standard) prevents the use of water near the sanding area,
while the version is not provided with suction (version GLASS and REMOTE) can be
used with little water and/or with water splashes near the sanding area. In any case, to
avoid contact between motor and water.
WARNING
Failure to comply with instructions on this machine or in this manual may cause serious
injury and/or damage. Read and comply with all safety instructions.
CAUTION
Injury or damage may occur if maintenance operation and repairs are carried out by
unauthorized personnel.
CAUTION
The machine may become damaged if it is not kept in a dry building. Keep the machine
in a dry building.

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Operation manual STORNELLO®
Prevention measures for users
Compliance with safety measures and warnings
HAZARD
Striking nails when sanding may generate an explosion or fire. Always ensure all nails
are sunk before sanding surfaces.
HAZARD
Serious damage may occur if the power supply circuit trips repeatedly or is undersized.
Have the fuses, safety circuit and power supply line checked by an authorized electrician.
HAZARD
Performing maintenance and/or repairing the machine when it is not fully disconnected
from the power supply may cause death due to electrocution. Disconnect the power
supply before carrying out any maintenance and/or repair work.
HAZARD
The use of this machine on a circuit which is not grounded may cause death due to
electrocution. Never disconnect or disable the grounding conductor. Consult an
electrician if the ground conductor is missing or it is suspected that the circuit is not
suitably grounded.
HAZARD
The use of this machine with a damaged power supply cable may cause electric shock.
Check the power supply cable regularly for damage, such as splitting or wear and tear.
Do not use the machine if the power supply cable is damaged. Do not use the electric
cable to move the machine.
HAZARD
Injury or damage may occur if the sander machine runs over the power supply cable and
it becomes damaged. Keep the cable away from the lower part of the machine to avoid
contact with the tool or the abrasive. Always keep the power supply cable raised above
the machine.
HAZARD
The moving parts of this machine may cause serious injury and/or damage. Keep hands,
feet and loose clothing away from all moving parts of the sander machine.
HAZARD
Performing maintenance or replacing the dust bag may cause injury to the operator and/
or people nearby if the machine is connected to the power supply.
HAZARD
Do not immerse the machine in water. The use of the machine provided with suction
(version WOOD and METAL standard) prevents the use of water near the sanding area,
while the version is not provided with suction (version GLASS and REMOTE) can be
used with little water and/or with water splashes near the sanding area. In any case, to
avoid contact between motor and water.
WARNING
Failure to comply with instructions on this machine or in this manual may cause serious
injury and/or damage. Read and comply with all safety instructions.
CAUTION
Injury or damage may occur if maintenance operation and repairs are carried out by
unauthorized personnel.
CAUTION
The machine may become damaged if it is not kept in a dry building. Keep the machine
in a dry building.

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Operation manual STORNELLO®
Prevention measures for users
General Power Tool Safety Warnings
WARNING!
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated
(cordless) power tool.
Work area safety
WARNING
-
Keep work area clean and well lit. Cluttered or dark areas invite accidents.
DANGER - Do not operate power tools in explosive atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or
fumes.
WARNING - Keep children and bystanders away while operating a power tool. Distractions can
cause you to lose control.
Electrical safety
DANGER - Power tool plugs must match the outlet. Never modify the plug in any way. Do not use
any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching
outlets will reduce risk of electric shock.
DANGER - Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges
and refrigerators. There is an increased risk of electric shock if your body is earthed or
grounded.
DANGER - Do not expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
DANGER - Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power
tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled
cords increase the risk of electric shock.
DANGER - When operating a power tool outdoors, use an extension cord suitable for outdoor use.
Use of a cord suitable for outdoor use reduces the risk of electric shock.
DANGER - If operating a power tool in a damp location is unavoidable, use a residual current
device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.
Personal safety
DANGER - Stay alert, watch what you are doing and use common sense when operating a power
tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol
or medication. A moment of inattention while operating power tools may result in serious
personal injury.
DANGER - Use personal protective equipment. Always wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for
appropriate conditions will reduce personal injuries.
DANGER - Prevent unintentional starting. Ensure the switch is in the off-position before connecting
to power source and/or battery pack, picking up or carrying the tool.
WARNING - Carrying power tools with your finger on the switch or energizing power tools that have
the switch on invites accidents.
WARNING - Remove any adjusting key or wrench before turning the power tool on. A wrench or a
key left attached to a rotating part of the power tool may result in personal injury.
WARNING - Do not overreach. Keep proper footing and balance at all times. This enables better
control of the power tool in unexpected situations.
WARNING - Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and
gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in
moving parts.
WARNING - If devices are provided for the connection of dust extraction and collection facilities,
ensure these are connected and properly used. Use of dust collection can reduce dust-
related hazards.

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Operation manual STORNELLO®
Prevention measures for users
General Power Tool Safety Warnings
Power tool use and care
WARNING - Do not force the power tool. Use the correct power tool for your application. The correct
power tool will do the job better and safer at the rate for which it was designed.
WARNING - Do not use the power tool if the switch does not turn it on and off. Any power tool that
cannot be controlled with the switch is dangerous and must be repaired.
WARNING -Disconnect the plug from the power source and/or the battery pack from the power tool
before making any adjustments, changing accessories, or storing power tools. Such
preventive safety measures reduce the risk of starting the power tool accidentally.
WARNING - Store idle power tools out of the reach of children and do not allow persons unfamiliar
with the power tool or these instructions to operate the power tool. Power tools are
dangerous in the hands of untrained users.
WARNING - Maintain power tools. Check for misalignment or binding of moving parts, breakage of
parts and any other condition that may affect the power tool’s operation. If damaged,
have the power tool repaired before use. Many accidents are caused by poorly
maintained power tools.
WARNING - Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to control.
WARNING - Use the power tool, accessories and tool bits etc. in accordance with these instructions,
taking into account the working conditions and the work to be performed. Use of the
power tool for operations different from those intended could result in a hazardous
situation.
Service
WARNING - Have your power tool serviced by a qualified repair person using only identical
replacement parts. This will ensure that the safety of the power tool is maintained.
Safety instruction for all operations
Safety Warnings Common for Sanding or Polishing Operations
DANGER - This power tool is intended to function as a sander or polisher. Read all safety warnings,
instructions, illustrations and specifications provided with this power tool. Failure to follow
all instructions listed below may result in electric shock, fire and/or serious injury.
WARNING - Operations for which the power tool was not designed may create a hazard and cause
personal injury.
WARNING - Do not use accessories which are not specifically designed and recommended by the
tool manufacturer. Just because the accessory can be attached to your power tool, it
does not assure safe operation.
WARNING - The rated speed of the accessory must be at least equal to the maximum speed marked
on the power tool. Accessories running faster than their rated speed can break and fly
apart.
WARNING - The outside diameter and the thickness of your accessory must be within the capacity
rating of your power tool. Incorrectly sized accessories cannot be adequately guarded or
controlled.
WARNING - Threaded mounting of accessories must match the grinder spindle thread. For
accessories mounted by flanges, the arbour hole of the accessory must fit the locating
diameter of the flange. Accessories that do not match the mounting hardware of the
power tool will run out of balance, vibrate excessively and may cause loss of control.

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Operation manual STORNELLO®
Prevention measures for users
Safety instruction for all operations
Safety Warnings Common for Sanding or Polishing Operations
WARNING - Do not use a damaged accessory. Before each use inspect the accessory such as
abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire
brush for loose or cracked wires. If power tool or accessory is dropped, inspect for
damage or install an undamaged accessory. After inspecting and installing an accessory,
position yourself and bystanders away from the plane of the rotating accessory and run
the power tool at maximum no-load speed for one minute. Damaged accessories will
normally break apart during this test time.
WARNING - Wear personal protective equipment. Depending on application, use face shield, safety
goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves
and workshop apron capable of stopping small abrasive or workpiece fragments. The
eye protection must be capable of stopping flying debris generated by various
operations. The dust mask or respirator must be capable of filtrating particles generated
by your operation. Prolonged exposure to high intensity noise may cause hearing loss.
WARNING - Keep bystanders a safe distance away from work area. Anyone entering the work area
must wear personal protective equipment. Fragments of workpiece or of a broken
accessory may fly away and cause injury beyond immediate area of operation.
DANGER - Hold the power tool by insulated gripping surfaces only, when performing an operation
where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory
contacting a "live" wire may make exposed metal parts of the power tool "live" and could
give the operator an electric shock.
DANGER - Position the cord clear of the spinning accessory. If you lose control, the cord may be
cut or snagged and your hand or arm may be pulled into the spinning accessory.
DANGER - Never lay the power tool down until the accessory has come to a complete stop. The
spinning accessory may grab the surface and pull the power tool out of your control.
DANGER - Do not run the power tool while carrying it at your side. Accidental contact with the
spinning accessory could snag your clothing, pulling the accessory into your body.
DANGER - Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the
housing and excessive accumulation of powdered metal may cause electrical hazards.
DANGER - Do not operate the power tool near flammable materials. Sparks could ignite these
materials.
DANGER - Do not use accessories that require liquid coolants. Using water or other liquid coolants
may result in electrocution or shock.
Further safety instructions for all operations
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power
tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering
into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel
may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point
of pinching. Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided
by taking proper precautions as given below.
WARNING - Maintain a firm grip on the power tool and position your body and arm to allow you to
resist kickback forces. Always use auxiliary handle, if provided, for maximum control over
kickback or torque reaction during start-up. The operator can control torque reactions or
kickback forces, if proper precautions are taken.

14
Operation manual STORNELLO®
Prevention measures for users
Safety instruction for all operations
Further safety instructions for all operations
DANGER - Never place your hand near the rotating accessory. Accessory may kickback over your
hand.
WARNING - Do not position your body in the area where power tool will move if kickback occurs.
Kickback will propel the tool in direction opposite to the wheel’s movement at the point of
snagging.
WARNING - Use special care when working corners, sharp edges etc. Avoid bouncing and snagging
the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating
accessory and cause loss of control or kickback.
WARNING - Do not attach a saw chain wood carving blade or toothed saw blade. Such blades create
frequent kickback and loss of control.
Additional safety instructions for sanding operations
Safety Warnings Specific for Sanding Operations
WARNING - Do not use excessively oversized sanding disc paper. Follow manufacturers
recommendations, when selecting sanding paper. Larger sanding paper extending
beyond the sanding pad presents a laceration hazard and may cause snagging, tearing of
the disc or kickback.
Additional safety instructions for polishing operations
Safety Warnings Specific for Polishing Operations:
DANGER - Do not allow any loose portion of the polishing bonnet or its attachment strings to spin
freely. Tuck away or trim any loose attachment strings. Loose and spinning attachment
strings can entangle your fingers or snag on the workpiece.

15
Operation manual STORNELLO®
Prevention measures for users
Instructions on correct machine use
Read this manual carefully and become familiar with the machine. The equipment is suitable for commercial
use, for example in hotels, schools, hospitals, offices, factories and shops.
The following information highlights particularly hazardous situations for the operator and/or to the
machine. Understand when these conditions may be present. Removing safety features could causes death
or physical injury. Take all steps necessary to instruct personnel who may use the machine.
Report any damage on the machine or incorrect operation immediately.
1. Keep hands and clothes away from rotating parts.
2. Keep hands on the handle when the motor is operating.
3. Do not leave the machine unattended when the motor is operating.
4. Always use the machine with the dust bag in the correct position.
5. Do not detach the dust bag when the motor is operating.
6. Always disconnect the power supply cable from the machine before performing maintenance.
7. Always use the machine in well-ventilated areas.
8. Always dispose of the sawdust appropriately.
9. Use the type and amount of abrasive specified in the instruction manual.
10. Always keep the work area well-lit.
11. The use of accessories other than those recommended in this manual may cause injury.
12. Always use the sander machine inside buildings. Do not use outside buildings in the presence of water and
rain.
Machine specifications
Abrasive disc size: ø150 mm attached on backing pad by Velcro system
Plate size: ø148 mm
Sanding disc speed: n°7 speed (from 1500 rpm to 3200 rpm)
Motor: 230 V / 50 Hz
Motor power: 1010 W
Wheels: n°3 removable and replaceable spherical wheels
Pressure / plate inclination adjustment: by handwheel that operate on the height
adjustment of the rear wheel
Motor protection: IP 20
Noise Level: ≤ 92dB (A)
Vibration: ≤ 4m/s2
Dimensions: 30x30x30 cm
Net weight: 4 kg (body complete machine)
Packaging: box / trolley
Gross weight: 12 kg (including box or trolley complete with accessories)
Standard equipment:protections, complete tool bag, trolley complete and standard plate.
Other equipment according to the purchased version.

16
Machine warnings
Prohibited use
WARNING
Children should be supervised to ensure that they do not play with the appliance.
This machine is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge unless they have received instructions
regarding the use and are supervised by a person responsible for the their safety.
WARNING
This equipment is not suitable for collecting dangerous dust.
CAUTION
Using the machine to move objects or moving on an incline may cause injury or damage.
The machine must only be used for sanding, grinding and working wood, dry metals or
glasses and with flat surface or slightly rounded. It can also be used with caution on
sloping and vertical surfaces. Do not site astride the machine when it is operating. in
motion.
CAUTION
Work surfaces may be seriously damaged if the machine is left turning on one point while
the tool is in contact with the surface. To avoid damage the surface, approach the cutting
line carefully. Do not stop when the sander machine is in contact with the surface and
/or while adjusting the pressure of the plate by the handwheel, but always move at a
constant speed, or lift the machine, adjust and slowly move closer to the surface.
Starting machine
To start the machine proceed as follows:
1. Become familiar with the machine and read all instructions and safety notice. Ensure that all operators read
this manual.
2. For Wood and Metal version standard: set the dust bag to the suction tube, set the other end of suction tube
to the black connector supplied and connect the suction tube to the machine via the suction nozzle.
3. Ensure that the tool used is perfectly fastened to the crankshaft and sanding plate to have its own abrasive
disc.
4. Locate the power supply. The socket must be compatible with the plug. The socket to avoid electrical
hazards, should be grounded and protected with a fuse.
5. Keep the cable out of the path of the machine.
6. Before starting the machine adjust the handwheel of the disc pressure to "0", i.e. rotate the symbol "-" until it
stops. This is "0" machine, the disc will work flat, positioned parallel to the working surface, and it will touch on
slightly the working plan.
CHECK
Check that the STORNELLO® rests simultaneously on all three spherical wheels and not on the tool
applied.
7. Start the STORNELLO® pressing the button on the lower part of the main machine.
Operation manual STORNELLO®

17
Operation manual STORNELLO®
Starting machine
8. To lock the machine in the working position without holding down the starting button, press the lock button
sideways on the main handle.
9. Choose the inclination and the pressure to apply on the working surface by adjusting the handwheel. To
increase the pressure and therefore more tilt the plate to rotate toward the "+" symbol, as shown by the
stamping on the base.
10. Once locked the starting button and set the pressure of the sander machine, place your hands in one of the
following ways:
A hand on the main plastic handle of the machine and the other on bilateral handlebar;
Both hands on bilateral handlebar.
11. Keep constantly moving the sander machine on the working surface do not press overly on the main handle
or on bilateral handlebar.
12. Depending on the tool used, on the working process, on the size of the working surface and on desired
finish surface, plan a repeatable working method.
CAUTION
The machine works with a constant pressure regulated previously by the operator by adjusting the handwheel
pressure control.
If you exercise an additional and excessive pressure on the sander machine may be non-uniform and non-
optimal finishing surface.
13. To switch off the STORNELLO® pressing the starting/shutdown button on the main handle of the machine,
unlock the lock button, and then release it.
Machine adjustment procedures
Adjusting the sanding pressure and/or inclination of the plate
To change the pressure of the sanding disc on the working surface, adjust the handwheel located on the axis of the
rear wheel, so it adjusts the angle accuracy of sanding.
Proceed as follows:
1. Turning the handwheel
clockwise towards the position
"+" the inclination of the plate
or tool increases and therefore
the pressure of the disc on
working surface increases.
Consequently decreases the
contact area between the tool
and working surface.
2. Turning the handwheel
counter-clockwise towards the
position "-" the inclination of
the plate or tool decreases and
therefore the pressure of the
disc on
working surface
decreases.
Consequently increases the
contact area between the tool
and working surface.

18
Operation manual STORNELLO®
Machine adjustment procedures
Tool speed adjustment
The machine is equipped with a speed controller, which
controls the speed of rotation of the abrasive tool or disc
used.
The sanding speed may be adjusted according to the
different conditions of the working surface, the material of
the working surface and the sanding quality requirements
(finishing).
The rpm speed is adjusted by turning the variable speed
drive. The control has a total of 7 speed: from "MIN" to
"MAX" with intermediate speeds numbered from "1" to "5".
MIN is the lowest speed (about 1500 RPM) and MAX is the
highest speed (about 3200 RPM).
Use the highest speed settings for fast removal. Use the
lowest speed setting for low material removal.
Setting plate or other sanding tool
Always remember that the machine, especially in the initial phase of adjustment and setting, must support to the
surface with three spherical wheels and not with the assembled tool to avoid the effect roll, i.e. to avoid that the machine
does not work perfectly flat and that working is not homogeneous on the working area.
Included in delivery:
•N° 1 white nylon washer thickness 2.5 mm (for
all versions Wood, Metal and Glass).
•N° 4 shim rings 0.5mm (for Wood and Metal
version).
The use of this washer and of these rings must be used
for the adjustment in height of the plate or tool used, and
for compensation of abrasive
consumption (abrasives,
non-woven, tynex brushes or metal, con
sumption or
aging of the plates), then they must be used, in fact, to
compensate the crushing of the mousse of the plate after
a certain number of hours of use. The normal
consumption of the plate is evident especially in the
peripheral part of the same,
the mousse can no longer
crush the abrasive disc on the working surface.
Set
the shim rings between the sanding disc and the
white nylon washer.
Procedures for disassembly and replacement of the plate
Remove the sanding disc by Velcro or PSA support of the
plate, insert the allen key 5 with handle in the center hole i
of the plate and turn it clockwise while holding the plate
with the other hand.
WARNING: The abrasive disc is in the correct position
when it sticks out about 1 mm around the entire
circumference of the plate.
HAZARD: Using a damaged abrasive disc may, tearing
during polishing, cause damage to the plate and to the
surface.
CODE REPLACEMENT PLATE STANDARD:
PSA 7600030013, Velcro 7600030021.

19
Operation manual STORNELLO®
Routine maintenance
Graphite brushes (for the user)
1. Unscrew with a screwdriver the two blacks caps
on the sideways machine head.
2. Remove the old worn brushes, insert the new
brushes and replace the two blacks caps.
CODE SPARE PART COUPLE OF GRAPHITE BRUSHES: 7600030022
Cleaning spherical wheel (for the user)
Keep constantly clean the three spherical wheels in the
crankcase.
The cleaning methods are mainly two:
1. For a surface cleaning is sufficient blowing with
compressed air in the three slits are visible from
the inside of the crankcase (pic.1).
2. For a deeper cleaning, remove the locking ring
with a small screwdriver (pic.2a/2b/2c), clean
the balls with hot water or a mild cleaning, blow
the exposed bearings with compressed air and
replace each ball with your trim ring. (The
operation is executable on all wheels). Careful
not to lose the internal components of the
wheel).
CODE SPARE PART BALL: OC000303500B0N0
Replacing front spherical wheels (for the user)
The complete replacement of the two fixed front wheels can be performed as specified below:
1. Unscrew with the wrench 17 provided in the tool bag, the two M10 nuts. Pull the two spherical wheels paying
attention to the position of the hole in the cup of the wheel into the space in the crankcase.
CAUTION:
SET CUP HOLE
IN CORRESPONDENCE
OF THE
INTERNAL WINDOW
OF THE CRANKCASE
1
2a
2b
2c

20
Operation manual STORNELLO®
Routine maintenance
Replacing front spherical wheels (for the user)
Note: The position of the hole in the cup is turned towards the suction chamber to allow the suction of removing dust
inside the wheel. To facilitate the correct setting of the wheel there are the positioning turrets in the wheel housing.
CODE SPARE PART WHEEL: OC999503500BHN1
Replacing rear spherical wheel (for the user)
The complete replacement of the adjustable rear wheel, being locked to the screw, is performed in the following way:
1. Saw the pin of the spherical wheel with a hacksaw, being careful not to damage the spring.
2. Throw the spherical wheel and the wheel.
3. Order the spherical wheel with long pin OC999503500BHN2 code and the handwheel 7600030011 code.
4. Insert the washer on the pin of the new spherical wheel, screw the new spherical with long pin into the
threaded insert in the crankcase, insert the spring in the pin coming out of the crankcase and screw the
handwheel blocking it with high strength threadlock.
Spare parts
Always use original spare parts K&T.
Failure to use K&T spare parts, or repairs/adjustments carried out by unauthorized personnel, will invalidate the
guarantee and any resulting liability.
The machine must only be repaired by qualified personnel as specified in the warranty.
This electric equipment is compliant with the relevant safety legislation.
USE OF THE FLAP DISC
Assembly sequence of the Flap Disc
For versions STORNELLO®METAL and METAL REMOTE STORNELLO®have supplied the Flap Disc grain 40 with
all accessories necessary for a good use, and above all to properly perform the assembly and disassembly
operations. We illustrate the assembly sequence of the Flap Disc: