Blastrac BG-250 Grinder Operating Manual PDF

G e b r u ik e r s h a n d le id in g

BG-250 Version 1.0

Operating manual BG-250 O p e r a t in g m

a n u a l

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Operating manual BG-250 2/11

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EC DECLARATION OF CONFORMITY

in accordance with Appendix II sub A of Directive 98/37/EC BLASTRAC B.V.

Utrechthaven 12 NL - 3433 PN NIEUWEGEIN Tel: 0031 (0)30 601 88 66 Fax: 0031 (0)30 601 83 33 Info@Blastrac.nl 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 BG-250/0000 Serial number: xxxxB

1. 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 418, NEN-EN 294 and NEN-EN 60204 Nieuwegein 17-01-2005

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Table of contents EC Declaration of Conformity 02

1.Introduction 04

2.Machinedescription 04

Application Accessorys

3.Safety 05

Safety precautions Safety regulations Safety instructions

4.Initial operation 07

Checkpoints of electrical safety Checkpoints of machine safety Removing the diamond disc Mounting the diamond disc

5.Operating 08

Switch on the machine Switch off the machine Operating during grinding

6.Maintenance 09

Replacing the flexible coupling

7.Technical data 10

Contact 11

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1. Introduction It is important that all persons who are working or maintaining with 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 BG-250 is an electric driven floor grinding machine for treating horizontal surfaces. The machine has a rotating adapter plate where the diamond disc can be fixed on. The rotating parts are covered by a protection cap with a connection for a dust hose. With a suitable Blastrac dust collector you can work without causing dust.

Application

The BG-250 can be used on almost any floor to plane, to make ready for coatings, or to remove coatings or glue residues. 1 Hand lever support 6 Driving motor 11 Diamond disc

2 Handgrip 7 Add on weight 12 Brush seal

3 On / Off emergency switch 8 Grease nipple 13 Support

4 Socket with phase inverter 9 Bearing unit 14 Wheel

5 Dusthose connection 10 Flexible coupling 15 Strain relief

Accessorys

There are several types of discs that may be used on this machine. The discs that can be used are: B21792LH Diamond disc 250mm soft Red B21793LH Diamond disc 250mm middle Green B21794LH Diamond disc 250mm hard Blue

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3. Safety Before operating the machine, the personnel must be familiar with the safety instructions given in this manual. Keep this manual near to the machine, so it can always 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 Dont 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.

Dont change anything on the machine. Use always cables which are approved and safety earthed (extend) cables. The machine is always equipped with an earthed connection, do not change this and use always 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 to the requirements which 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 repairings on the machine. Never operate the machine when the surface is wet. Never use the machine in the rain. The machine contains rotating parts, so always leave the diamond disc on the floor

while the motor is turning. The flexible coupling can become obsolete with use, because of this there can be

higher vibrations than normal. Check for this reason regularly the flexible coupling.

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The following sticker is placed on the machine.

Meanings of these symbols are: Ear protection is obliged Safety glasses with lateral protection are obliged CE-mark on this machine Safety shoes obliged 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 during operating the machine.

Safety instructions

Do not stand the machine on the diamond disc or coupling when it is not in use, this will cause deformation to the flexible coupling. Put the machine always on the support which is made for this reason.

Make sure the machine is clean and that the handgrips are dry and free of grease and oil.

Make sure the brush seals are in good condition, this to avoid dust. Pull out the main plug when changing the disc or flexible coupling. It is not allowed to lift the machine without use of appropriate appliances as a lift

or crane. Lift the machine up like it is shown in the picture below by point 2.

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4. Initial operation Before using the machine it is committed to inspect the machine. It is not permitted to use the machine if the machine safety is not according the checkpoints below.

Checkpoints for 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 disc is not damaged There are no damages on the electrical components. There are not any loose nuts or bolts There is no damage to the dust hose and if it is connected well.

Removing the diamond disc

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.

Loosen the 4 bolts with an appropriate key. Remove the diamond or multiflail disc.

Mounting the diamond disc

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.

Fix the diamond of multiflail disc underneath the adapter plate and turn the 4 bolts with an appropriate key tight.

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5. Operating During operating the BG-250, the following additional safety instructions must be followed closely.

Switch on the machine

Turn on the dust collector before switching on the machine. Connect the dust hose with the machine Stand behind the machine Make sure that the machine stands on the support. Push the start button (2) on the electrical box. Check if the machine turns the right direction. If not, turn the phase inverter in the socket and start the machine again. Let down the machine till the diamond disc hits the floor Start grinding

Switch off the machine

Push the red button (3) on the electrical box Wait until the machine stops rotating before you set the machine on the support. Pull out the power supply Shut down the dust collector.

Operating during grinding

To get an optimum result during grinding, the machine may not stand still. The machine must always be in movement so it does not grind to deep into the floor. Move the machine from left to right and from forward to backwards to get a nice flat result.

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6. Maintenance Work only with original Blastrac parts. Check regularly to see if the diamond disc is in good condition. Replace immediately the diamond disc when this is damaged or worn out. Check if the flexible coupling is stiff enough, after every 2 diamond disc changes. Replace if any deformation or damage is found, replace the coupling after use of 7 diamond discs. Unusual vibrations on the machine check immediately the diamond disc and flexible coupling

Replacing the flexible coupling:

Pull out the main plug Remove the diamond disc Remove the brush seal Loose the bolts of the adapter plate and the flexible coupling Take a new flexible coupling and assemble this together with the adapter plate on

the fixed coupling on the motor axle Assemble the brush seal.

Prevent premature wear by keeping the machine as dust free as possible. Clean the machine for this reason 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 expired when:

Non original Blastrac parts and diamond discs have been used Repair work is not done by qualified Blastrac personnel Changes, add ons or conversions are undertaken without written permission of

Blastrac BV

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7. Technical data

BG-250

Power consumption 5,5 kW

Electrical connection 400V / 50 Hz

Diameter diamond disc 250 mm

Working width 250 mm

Rotation speed 2000 min-1

Length 1250 mm

Width 620 mm

Height 1020 mm

Weight 105 kg

Noise level 78dB(A)

Dust hose connection 75 mm

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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HEADQUARTER

Blastrac BV The Netherlands

Utrechthaven 12

NL - 3433 PN Nieuwegein

Tel: 0031 (0)30 601 88 66

Fax: 0031 (0)30 601 83 33

info@blastrac.nl

Blastrac United Kingdom

Unit 2, Outgang Lane, Dinnington

Sheffield, South Yorkshire

GB S25 3QU, England

Tel: 0044 (0) 1909 569 118

Fax: 0044 (0) 1909 567 570

info@blastrac.co.uk

Blastrac France

ZI

29, Avenue des Temps Modernes

F 86360 Chasseneuil du Poitou

Tel: 0033 (0)5 49 00 49 20

Fax: 0033 (0)5 49 00 49 21

info@blastrac.fr

Blastrac Spain

Calle Copernico, 16

Nave 2

E 28820 Coslada

Tel: 0034 91 660 10 65

Fax: 0034 91 672 72 11

info@blastrac.com.es

Blastrac Germany

Mathias Brggen Strae 144

D 50829 Kln (Ossendorf)

Tel: 0049 (0) 221 70