DNIPRO M BG-15X Guide

en Original safety and operation instructions for bench grinder 3
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3
EU-BG0823001–0823001
en
en Original safety and operation instructions for bench grinder
CONTENT
1. SAFETY PROCEDURES WHEN WORKING WITH THE GRINDING MACHINE ............... 4
2. CONVENTIONAL SINGS ............................................................................................. 5
3. SCOPE OF SUPPLY..................................................................................................... 5
4. INTENDED PURPOSE AND APPEARANCE................................................................... 6
5. TECHNICAL SPECIFICATIONS .................................................................................... 6
6. PREPARATION FOR WORK..........................................................................................7
7. WORKING WITH THE MACHINE ................................................................................ 8
8. MAINTENANCE .......................................................................................................... 9
9. STORAGE AND TRANSPORTATION ............................................................................ 9
10. DISPOSAL .................................................................................................................. 9
11. POSSIBLE FAULTS AND TROUBLESHOOTING............................................................ 10
12.BRANDEDSERVICECENTRESDNIPRO-M .................................................................10
13. DECLARATION ..........................................................................................................10

4EU-BG0823001–0823001
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Dear Buyer!
Thank you for trusting the “DNIPRO M”
trademark. We are constantly working
to provide you with reliable, affordable
products with the best service. We are
sure that our products will become your
indispensable assistant for many years.
WARNING!
Read the safety warnings, instructi-
ons, illustrations and specifications
provided with this grinder. Failure
to follow all instructions may result
in electric shock, fire, and/or serious
personal injury.
1. SAFETY PROCEDURES WHEN
WORKING WITH THE GRINDING
MACHINE
–Clean and light the workplace well.
Clutter and poor lighting can lead to
accidents.
–If you are not sure of your knowledge/
skills, do not work with the grinding
machine. Be sure to read the original
safety and operating instructions.
–Use the grinder only for its intended
purpose. The manufacturer bears no re-
sponsibility and warranty obligations if
the grinding machine was not used for
its intended purpose.
–Use personal protective equipment. Be
sure to wear safety glasses. Use protec-
tive screens and spark arresters. Wear
dust mask/respirator, non-slip safe-
ty shoes, protective apron and hearing
protection as necessary.
–Keep hair, clothing and jewelry away
from moving parts of the grinder. The
moving parts of the grinding machine
can catch loose clothing, jewelry, and
hair. Fasten all fastening elements of
work clothes.
–Do not work with the grinding machine
if you are tired or have used drugs, al-
cohol or medication the day before.
–The switch must be in the "Off" (O) posi-
tion before connecting the grinder to the
power source.
–Disconnect the grinder from the pow-
er source before preparation, during
maintenance, before changing grinding
wheelsandafternishingwork.
–Before switching on, remove unfas-
tened or unnecessary objects from the
grinding machine and from the work
area.
–The protective elements must be correct-
ly installed before working with the grind-
ing machine.
–Be sure to install protective elements
after maintenance.
–Before working with the grinding ma-
chine, check whether the protective el-
ements and other parts are not dam-
aged and are correctly installed. Check
that the moving parts of the grinder are
not jammed and that they are not dam-
aged. Replace damaged parts.
–Theooraroundthegrindingmachine
must be clean of grease and other ma-
terials.
–Remove sanding dust from the grinder
and work area.
–Do not allow children and strangers to
enter the work area of the grinding ma-
chine.
–Maintain stability and balance while
working. Do not lean on the grinder.
–Do not apply excessive force when
working with the grinder. Due to exces-
sive pressure, grinding wheels may lose
speed.
–When the grinder is left unattended, al-
ways turn off the grinder and wait for
the grinding wheels to come to a com-
plete stop.
–Do not use the grinder in an explosive
environment, near ammable liquids,
gases or dust.
–Do not expose the grinder to rain or
moisture.
–Use only undamaged power cords.
Damaged power cords increase the risk
of electric shock.
–Securely press the workpiece to the
working stop. It is dangerous to pro-
cess workpieces without using work-
ing stops.
–Do not overtighten the grinding wheel
nuts.

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EU-BG0823001–0823001
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2. CONVENTIONAL SINGS
General caution sign (risk to peo-
ple, explained by an additional
sign or text)
Read the original safety and op-
erating instructions
Wear hearing protection
Wear eye protection
Wear a mask
Dmax
The maximum diameter of the
grinding wheel
Dmin
The minimum permissible diame-
ter of the grinding wheel before
replacement
Class of protection against elec-
tric shock I
Mark of compliance with techni-
cal regulations (Ukraine)
A special mark certies that the
grinding machine meets the ba-
sic requirements of EU directives
and harmonized EU standards
The unique sign of circulation of
products on the market of the
member states of the Eurasian
Economic Union (EAEU)
Separate collection of electri-
cal and electronic equipment. To
prevent damage to the environ-
ment, electrical and electronic
equipment is separated from oth-
er waste. The equipment is recy-
cled in the safest way
–Use only recommended grinding
wheels when working with the grinder.
–Check that the grinding wheels are not
damaged. Do not use cracked grinding
wheels.
–The gap between the grinding wheels
and the working stops/spark arrestors
should be a maximum of 2 mm.
–Start work when the grinding wheels
are at full speed.
–Sharpen only with the face or edge of
the grinding wheels near the work stop.
Do not sharpen with the side of the
grinding wheels.
–Useonlythesuppliedanges.
–Do not use the grinder if the following
damages are present:
–damage to the plug or the power cord;
–malfunction of the on/off switch;
–overheating of the motor body;
–the appearance of smoke or the smell of
burnt insulation;
–the appearance of cracks in the body
parts.
3. SCOPE OF SUPPLY
Scope of supply BG-12X BG-15X BG-20X BG-20
1Grinding machine 1 pc. 1 pc. 1 pc. 1 pc.
2Protective screen 4 pcs. 4 pcs. 4 pcs. 4 pcs.
3Spark arrester 2 pcs. 2 pcs. 2 pcs. 2 pcs.
4The original safety and operating instruc-
tions
1 pc. 1 pc. 1 pc. 1 pc.
5Packaging 1 pc. 1 pc. 1 pc. 1 pc.

6EU-BG0823001–0823001
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4. INTENDED PURPOSE AND
APPEARANCE
Intended purpose
A grinding machine (hereinafter referred
to as the machine) is intended for grind-
ing, removing dents/burrs and sharp
edges on metals, grinding metal surfaces
with the help of grinding wheels.
Appearance
1On/off switch
2Protective casing
3Working stop
4Grinding wheel
5Machine body
6Protective screen
7Spark arrester
8Illumination lamp
(for BG-20LX model)
9Holesforxingthemachine
WARNING!
LLC "DNIPRO M" is constantly work-
ing on improving its products. The
company reserves the right to make
changes without notifying consum-
ers. Changes may concern the ap-
pearance, design, complete set,
content of the original instructions
for safety and operation of the ma-
chine. Possible changes are aimed
exclusively at improving the ma-
chine.
5. TECHNICAL SPECIFICATIONS
Parameters Unit of
measure BG-12X BG-15X BG-20X BG-20LX
Nominal voltage V230 230 230 230
Nominal frequency Hz 50 50 50 50
Nominal power W150 150 350 350
Idle speed min-1 2950 2950 2950 2950
Degree of protection against
dust and water ІР 20 20 20 20
Weight kg 4,3 4,9 9,5 9,8
Grinding wheel size:
–maximum diameter of the
wheel mm 125 150 200 200
–minimum permissible wheel
diameter before replacement mm 80 110 135 135
–landing diameter of the wheel mm 32 32 32 32
–wheel thickness mm 16 16 20 20
–grain size of left/right wheels 36/60 36/60 36/60 36/60
Additional features:
Illumination lamp – – – +
Noise level value according to EN 62841–1
LpA — is the sound pressure
level dB(A) 82,7 82,7 82,4 82,4

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EU-BG0823001–0823001
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Parameters Unit of
measure BG-12X BG-15X BG-20X BG-20LX
КpA — is the uncertainty of the
sound pressure level dB(A) 3 3 3 3
LWA — is the sound power level dB(A) 93,7 93,7 93,4 93,4
KWA — is the uncertainty of the
sound power level dB(A) 3 3 3 3
WARNING!
The parameters are specified for
nominal voltage of 230 V with no-
minal frequency of 50 Hz. In case of
other voltage or frequency values,
other parameters are possible.
Information on noise and vibration
The declared total noise and vibration
values have been measured according to
thestandardtestmethoddened in EN
62841–1 and can be used to compare one
machine to another.
The declared total noise and vibration
levels can be used in preliminary noise
and vibration exposure assessments.
The declared noise and vibration levels
refer to the work for which the machine
is intended
WARNING!
Transmission of vibration and noise
emission during the use of the ma-
chine may differ from the declared
values. It depends on the condi-
tions of use of the machine and the
processed materials.
WARNING!
Use personal protective equipment
according to work conditions.
6. PREPARATION FOR WORK
WARNING!
Unplug the machine before prepara-
tion, during maintenance and after n-
ishing work.
Unpack and inspect the machine and ac-
cessories. Check the machine for damag-
es during transportation.
WARNING!
Make sure there is no condensate on
the machine. It is forbidden to pre-
pare the machine for work and use it
until the condensate has completely
dried. Condensate can form due to
temperature changes.
Fastening the machine to the work
surface
Beforestartingthework,xthemachine
on the work surface so that it does not
move away from its place during work:
–make a mark on the work surface accord-
ing to the mounting holes (9) of the ma-
chine (Fig. 1);
–according to the marking, drill holes in
the work surface;
–align the mounting holes with the holes
on the work surface;
–x the machine on the work surface
with bolts and nuts (not included in the
scope of supply).
Installation of spark arresters and
protective screens (Fig. 2)
WARNING!
Do not operate the machine without
installed spark arresters and protec-
tive screens.
–Attach the protective screens (2) to the
spark arrestors (4) with screws (1).
–Adjust the height of the spark arrestors
with the screws (3).
–The gap between the grinding wheels
and spark arrestors should be 2 mm
maximum.
–Adjust the protective screens so that
the face is protected as much as pos-
sible.

8EU-BG0823001–0823001
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–Turn the switch to the Off (O) position
to turn off the machine. Wait for the
grinding wheels to come to a complete
stop.
Work with the machine
Do not exert excessive force when work-
ing with the machine. Due to excessive ef-
forts, the engine overheats and the grind-
ing wheels wear out prematurely.
When sharpening different tools, follow
the initial sharpening angle.
Grinding wheels must rotate towards the
parts being sharpened.
When processing a narrow part, move
it left and right across the width of the
grinding wheel.
When sharpening a large part, install it on
an additional support.
Regularly cool the part in a water contain-
er. If the part is overheated, the harden-
ing of the metal may weaken. Do not wet
the grinding wheels with water.
If the part is jammed, immediately turn off
and unplug the machine. Remove the part
from the protective casing.
Do not process the part with the side of
the grinding wheels.
Replacement of the grinding wheel
WARNING!
The right-hand spindle has a right-
hand thread, the left-hand spindle
has a left-hand thread.
The speed of rotation of the grind-
ing wheel should not be lower than
the speed of rotation of the machine
–Unscrew the screws securing the pro-
tective casing (1) with a screwdriver
and a wrench 8 (Fig. 5).
–Remove the protective casing.
–Unscrew the nut (1) with a wrench 19
(Fig. 6).
–Remove the outer ange (2) and the
grinding wheel (3).
–Install a new grinding wheel on the in-
nerange(4)onthespindle(5).
–Installtheouterange(2)withthecon-
cave side facing the grinding wheel.
–Tighten the nut (1) with the wrench 19.
–Tighten the screws (1) to secure the
protective screens.
Remove and adjust spark arresters (4),
protective screens (2) only after turning
off the machine and completely stopping
the grinding wheels.
Adjusting the working stop
For the BG-12X and BG-15X models
(Fig. 3)
–Unscrew the ram lock (2).
–Adjust the wing stop (1).
–Tighten the ram lock.
For the BG-20X and BG-20LX models
(Fig. 4)
–Unscrew the two bolts (2).
–Adjust the wing stop (1).
–Tighten the two bolts.
7. WORKING WITH THE MACHINE
WARNING!
Work with the machine at ambient
temperatures from -15 °C to +45 °C.
After every 30 minutes of operation,
turn off the machine to let it cool
down.
Initial test
–Before starting the machine, check that
there is nothing preventing the grinding
wheels from rotating freely. To do this,
rotate the grinding wheels by hand.
–The working stops and spark arrestors
must not touch the grinding wheels.
–Turn on the machine.
–Wait for the machine to reach full speed
before starting work.
–If necessary, shut down the machine and
adjust the work stops/spark arresters.
Turning on/off
WARNING!
Before plugging the machine into
the outlet, make sure the switch is
in the "Off" (O) position.
–Turn the switch to the On position (I) to
turn on the machine. Wait for the ma-
chine to reach full speed before start-
ing work.

9
EU-BG0823001–0823001
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–Install the protective casing.
–Tighten the screws securing the pro-
tective casing (1) with a screwdriver
andwrench8toxtheprotectivecas-
ing (Fig. 5).
–Repeat these steps for the other grind-
ing wheel.
–Adjust the position of working stops,
spark arresters and protective screens.
–Turn on the machine. Let it work for
about a minute at idle speed.
–To replace the grinding wheel, you will
need tools that are not included in the
scope of supply:
–wrench 19,
–wrench 8,
–screwdriver.
8. MAINTENANCE
Unless otherwise expressly provided for
in this manual, the product must be ser-
viced only by the manufacturer (DNIPRO
M LLC), the DNIPRO-M authorised service
centre or the seller of the product.
Wipe the body of the machine regular-
ly with a soft cloth, preferably after each
use.
It is forbidden to use solvents that can
damage the plastic parts of the machine.
Gasoline, water-ammonia solution, etc.
can cause damage.
Moisture should not get into the holes of
the machine body.
The warranty for the machine shall be
canceled in case of unauthorized inter-
vention in the internal structure. Tamper-
ing with it may result in electric shock
and injury.
9. STORAGE AND
TRANSPORTATION
Store the machine in a dry place inacces-
sible to children with a relative humidity
of less than 80%. It is necessary to protect
the machine from direct sunlight. Store at
a temperature from -20 °C to +50 °C.
Before storing, make sure that there is no
condensate on the machine. Condensate
can form due to temperature changes.
Keep the machine, accessories and the
original safety and operating instructions
in the packaging. In this case, the neces-
sary information and components will al-
ways be available.
Transport the machine in its packaging to
avoid damage.
10. DISPOSAL
Do not dispose of the machine toge-
ther with household waste! If the ma-
chine is unusable, recycle it. The ma-
chine shall be recycled in accordance
with environmental legislation.

10 EU-BG0823001–0823001
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11. POSSIBLE FAULTS AND TROUBLESHOOTING
Description of the
malfunction
Possible reason Troubleshooting
The motor
does not start
Damaged power cord Contact the manufacturer (DNIPRO
M LLC), the DNIPRO-M service cen-
tre or the seller of the product.
Grinding wheels do not
rotate
Check that nothing is preventing
the grinding wheels from rotating
freely
Defective on/off switch Contact the manufacturer (DNIPRO
M LLC), the DNIPRO-M service cen-
tre or the seller of the product.
Defective capacitor Contact the manufacturer (DNIPRO
M LLC), the DNIPRO-M service cen-
tre or the seller of the product.
Faulty engine Contact the manufacturer (DNIPRO
M LLC), the DNIPRO-M service cen-
tre or the seller of the product.
Short circuit in the power
cord or plug
Check the insulation of the power
cord/plug for damage. Check for
short circuits. Contact the manu-
facturer (DNIPRO M LLC), the DNI-
PRO-M service centre or the seller
of the product.
The motor
overheats
Short circuit in the motor
or bad contact
Contact the manufacturer (DNIPRO
M LLC), the DNIPRO-M service cen-
tre or the seller of the product.
Low mains voltage Use a voltage stabilizer
The motor
slows down
The motor is overloaded Do not exert excessive force when
working with the machine
Faulty motor Contact the manufacturer (DNIPRO
M LLC), the DNIPRO-M service cen-
tre or the seller of the product.
Defective capacitor Contact the manufacturer (DNIPRO
M LLC), the DNIPRO-M service cen-
tre or the seller of the product.
Low voltage in the net-
work
Use a voltage stabilizer
The machine
vibrates too much
The grinding wheel is not
balanced
Replace the grinding wheel
12. BRANDED SERVICE CENTRES DNIPRO-M
For information on the location of DNIPRO-M service centres, please contact your sell-
er or an authorised representative of DNIPRO M LLC.