Blastrac BMG-720PRO User manual

Gebruikershandleiding
BMG-720PRO
Version 1.0
Operating manual BMG-720PRO
Operating manual
info@blastrac eu

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EC DECLARATION OF CONFORMITY
in accordance with Appendix II sub A of Directive 98/37/EC
BLASTRAC B V
Utrechthaven 2
NL - 3433 PN NIEUWEGEIN
Tel: [phone]
Fax: [phone]
[e-mail]
The Netherlands
Declare under our sole responsibility that the machine as described below
Conforms with the Health and Safety requirements of the European Directive
of the machine Safety.
In case of changes to the machine without our written authorization this declaration loses
its validity.
Model: BLASTRAC BMG-720PRO Serial number: XXXXXXX
. satisfies the conditions set out in the Machine Directive (Directive 98/37/EC); Low
voltage directive (73/23/CEE, as last amended; EMC directive 89/336/CEE, as last
amended)
2. satisfies the following harmonized standards:
NEN-EN 349, NEN-EN 4 8, NEN-EN 294 and NEN-EN 60204
Nieuwegein 7-06-2008

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Table of contents
EC Declaration of Conformity 02
1 Introduction 04
2 Machine description 04
Application
Accessories
3 Safety 05
Safety precautions
Safety regulations
Safety instructions
4 Initial operation 07
Checkpoints of electrical safety
Checkpoints of machine safety
Removing the diamond wings
Mounting the diamond wings
5 Operating 08
Switch on the machine
Switch off the machine
Operating during grinding
6 Maintenance 09
7 Technical data 10
Contact 11

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1 Introduction
It is important that all persons who are working or maintaining this machine will read the
manual carefully and understand it fully. Keep this manual near to the machine, so it can
always be consulted.
Only authorized and trained personnel may operate this machine.
2 Machine description
The BMG-720PRO is a small electrical driven planetary grinding machine. This is a three
headed machine for levelling and polishing of floors.
The patented drive system makes sure that this machine is very easy to handle.
The machine is simple to dismantle for ease of transportation.
Application
The BMG-720PRO can be used on almost any floor to plane, to make ready for coatings,
or to remove coatings or glue residues.
Steer handle 6 Toolbox Upper part drive system
2 On / Off / Emergency stop
/
speed control
7 Drive motor 2 Centre axle
3 Electra box 8 Protection cap 3 Polishing buffer
4 Power supply 9 Planetary system 4 Rubber dust seal
5 Wheel frame 0 Grinding buffer 5 Dust cap

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Accessories
There are several types of wings that may be used on this machine.
BG70730 Wing red box 9 pieces 8/20
BG707302 Wing red box 9 pieces 30/40
BG707303 Wing red box 9 pieces 60/80
BG707304 Wing red box 9 pieces 20/ 50
BG7073 Wing green box 9 pieces 8/20
BG7073 2 Wing green box 9 pieces 30/40
BG7073 3 Wing green box 9 pieces 60/80
BG7073 4 Wing green box 9 pieces 20/ 50
BG70732 Wing blue box 9 pieces 8/20
BG707322 Wing blue box 9 pieces 30/40
BG200995/set Wing PCD x
BG200997/set Wing PCD split
BG300 9 Cutter plate ø 305mm
BG300 09 Cutter
See the service manual for all the wings and dots.

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3 Safety
Before operating the machine, the personnel who are going to use it must be familiar with
the safety instructions given in this manual.
Keep this manual near to the machine, so that it may be consulted.
Safety precautions
The surface to be treated must be swept clean to remove stones, screws etc.
Never use the machine when the surface is not clear and if there is a risk of
tripping.
Make sure there is not any water on the surface to be treated.
Remove any trailing electrical cables and or dust hoses from the surface to be
treated
Always use a dust collector
Don’t get disturbed during the activities.
Safety regulations
Persons who are not operating the machine must not be permitted to stay in the
surrounding area of the machine.
Do not change anything on the machine. Always use cables that are approved and
safety earthed. Make sure that the machine is equipped with an earthed
connection, do not change this and always use earthed cables with an earthed
plug.
Connect main power supply cable to an installation with an earth leakage circuit
breaker.
Inspect and test the electrical components regularly. The electrical components
have to satisfy the requirements that apply to these components.
Always call a skilled electrician or your distributor when you have questions about
the safety of the electrical components.
Work on electrical equipment or operating materials may only be undertaken by a
skilled electrician or by trained persons under the guidance and supervision of a
skilled electrician as well as in accordance with the electrical engineering
regulations.
Pull out the main plug during inspections and maintenance on the machine.
Never operate the machine when the surface is wet.
Never use the machine in the rain.
The machine contains rotating parts; because of this never pull the machine
backwards with a turning motor.

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The following sticker is placed on the machine.
Meanings of these symbols are:
Ear protection is obligatory
Safety glasses with lateral protection are obligatory.
CE-mark on this machine
Safety shoes obligatory.
Consult the manual before operating the machine
Personnel must tie back long hair and not wear loose clothing or jewellery including rings.
Wear gloves and dust mask whilst operating the machine.
Safety instructions
Make sure the machine is clean and that the handgrips are dry and free of grease
and oil.
Make sure the dust seal is in good condition, this to reduce the dust.
Pull out the main plug when changing the diamond wings
It is not allowed to lift the machine without appropriate appliances as a lift or
crane.
Lift the machine with a rope on the frame as showed on the picture.

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4 Initial operations
Before using the machine it is important to inspect the machine.
It is not permitted to use the machine if the machine safety is not according the
checkpoints below.
Checkpoints of electrical safety
Use only extension cables for extending the main cable that are sized and marked
in accordance with the overall power consumption of the machine.
Electrical cables must be rolled entirely off of the reels.
Any damage to electric cables is not permitted
Use an electrical power supply connection with earth connection
Checkpoints of machine safety
Check if:
The safety functions and operating functions work correct.
The flexible coupling is not deformed or damaged
The diamond / multiflail disc is not damaged
There are no damages on the electrical components.
There are not any loose nuts or bolts
There is not any damage to the dust hose and if it is connected correctly.
Removing the diamond wings
Make sure the power supply plug is out of the machine
Lay down the machine so it is lying on the handle. Make sure the machine will not
fall back down. A second person can stands on the handle to make sure it will not
fall back down.
Loose the bolts ( ) to remove the adapter plate (2) from the diamond plate holder
(3) and remove the diamond wings (5) by unscrewing the three bolts (4) on the
back of the plate.
The polishing dots (6) can be changed without removing the adapter plates (2)
Mounting the diamond wings
Make sure the power supply plug is out of the machine
Lay down the machine so it is lying on the handle. Make sure the machine will not
fall back down. A second person can stands on the handle to make sure it will not
fall back down.
Mount the diamond wings (5) to the
adapter plates (2) with an appropriate
key and fix the adapter plate (2)
to the diamond plate holder (3)

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5 Operating
During operating the BMG-720PRO, the following additional safety instructions must be
followed closely.
Switch on the machine
Turn on the dust collector before switching on the machine and connect the dust
hose to the machine.
Connect the power supply to the machine
Stand behind the machine and hold the handle tight.
Make sure the emergency button ( ) is turned up.
Turn the speed control (2) to the left, so the
machine turns as slow as possible.
Turn the on / off switch to the left or right.
Start grinding
Switch off the machine
Push the red (emergency) button ( ) on the
electrical box
Wait until the machine stops rotating before
laying down the machine on the handle
Pull out the power supply
Shut down the dust collector.
Operating during grinding
This machine will always have an even grinding result because of the planetary system.
However it is advised to keep the machine constantly in movement for an optimum
grinding result.

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6 Maintenance
Work only with original Blastrac parts.
Check regularly to see if the diamond wings are in good condition. Replace immediately
when these are damaged or worn out.
Check daily if the diamond plates doesn’t have to much space in the buffers. If the
diamond plate has to much space, replace the buffers.
Prevent premature wear by keeping the machine as
dust free as possible, for these reasons clean the
machine regularly with a dust collector.
Clean the machine every day with air and non-
aggressive materials. Never use a high pressure water
cleaner to clean the machine.
Remove the diamond disc after using the machine
Store the cleaned and dry machine in a dry and humid
free room. Protect the electrical motor from moisture,
heat, dust and shocks.
All repair work must to be done by qualified Blastrac personnel, this to guarantee a safe
and reliable machine.
Any guarantee on the machine is automatically void when:
Non original Blastrac parts and or diamond discs have been used
Repair work is not done by qualified Blastrac personnel
Changes, add on’s or conversions are undertaken without the written permission
from Blastrac BV.

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7 Technical data
BMG-720PRO 3x 400Volt
Power consumption kW
Electrical connection 400V / 50 Hz
Amperage 32A
Diameter diamond disc Ø 305 mm
Working width 720 mm
Rotation speed 300 - 000 min
-
Length 460 mm
Width 800 mm
Height 350 mm
Weight 350 kg
Noise level 87dB(A)
Dust hose connection 75 mm Ø
Suitable filter unit Contact Blastrac BV We will assist you with a good advice
Design and specifications are subject to change without notice by Blastrac BV

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HEA QUARTER
Blastrac BV The Netherlands
Utrechthaven 12
NL - 3433 PN Nieuwegein
Tel [phone]
Fax [phone]
[e-mail]
Blastrac United Kingdom
Unit 2, Outgang Lane, Dinnington
Sheffield, South Yorkshire
GB – S25 3QU, England
Tel [phone]
Fax [phone]
[e-mail]
Blastrac France
ZI
29, Avenue des Temps Modernes
F – 86360 Chasseneuil du Poitou
Tel [phone]
Fax [phone]
[e-mail]
Blastrac Spain
Calle Copernico, 16
Nave 2
E – 28820 Coslada
Tel [phone]
Fax [phone]
[e-mail]
Blastrac Germany
Mathias Brüggen Straße 144
D – 50829 Köln (Ossendorf)
Tel [phone]
Fax [phone] 22
[e-mail]
Blastrac Poland
Golina, Dworcowa 47a
63-200 Jarocin
Tel [phone]
Fax [phone]
[e-mail]