Blastrac BG-250 TWIN Operating Instructions Manual Download Page 7

 

 

3. Safety 

Warning! 

Read all safety warnings and all instructions.  

Failure to follow the warnings and 

instructions may result in electric shock, fire, explosions and / or serious injuries.  
 
Only authorized and trained personnel may operate this machine. This machine is not intended for use by 
persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and 
knowledge. 
 
It is the responsibility of the user to analyse the surface to be treated. The surface may not contain any 
substances which could pose a fire-, explosion- or health risk when treated. The user should make a risk 
assessment on the basis of the information obtained about the surface to be treated and take proper 
precautions for the work to be performed. 
In case of any inappropriate usage, improper operation or repair, the producer shall be exempt from liability. 
 
 
 

3.1 

Work area safety 

a)

 

Do not use the machine in rain, damp or wet locations. 

b)

 

Avoid dangerous environments: do not work in the presence of explosive atmospheres, in the presence of 
flammable liquids, gases or dust. Remove materials or debris that may be ignited by sparks. 

c)

 

In some cases sparks could be created by grinding. 

d)

 

The surface to be treated must be clean, make sure to remove all stones, screws etc..  

Any stones, screws, bolts, pieces of wire etc. could cause serious damage to the machine if it gets inside 
the machine! 

e)

 

Make sure there is enough ambient light on the work area. Cluttered or dark areas invite accidents. 

f)

 

Keep children and bystanders away while operating the machine. They are likely not to foresee the 
potential dangers of the machine. Distractions could cause you to lose control of the machine.  

g)

 

Persons who are not operating the machine must not be permitted to stay in the surrounding area of at 
least 5 meter from the machine. 

h)

 

Never use the machine when the surface is not clear and if there is a risk of stumbling or tripping. 

i)

 

Remove electrical cables and dust hose(s) from the surface to be treated.  

j)

 

Make sure that there are no cables or hoses in the driving direction of the machine. 

k)

 

Make sure that there is nothing standing or situated on the surface to be treated. 

l)

 

Never stay in the rain with the machine. 

m)

 

Check if there are any obstacles that can snag the cables when the machine is moving. 

n)

 

Remove all objects from the surface that can damage the machine. Remove reinforcing steel or other 
objects protruding from the surface in order to prevent damage to the compounds or diamond discs. 

o)

 

Warning! Make sure that the surface to be treated does not contain dangerous materials such 
as: 

- combustible or explosive dusts or substances. 
- carcinogenic or pathogenic substances. 

(Except for the Asbestos version.) 

p)

 

It is necessary to provide for an adequate air change rate L in the room if the exhaust air is returned to 
the room. Comply with the National regulations. 

q)

 

Secure the work area around the machine in public areas providing an adequate safety distance from the 
machine. Use a red and white safety chain and danger sign to enclose the work area. 

 
 
 
 

3.2 

Electrical safety 

a)

 

Use only extension cables for extending the main cable that are sized and marked in accordance with the 
overall power consumption of the machine. Do not use damaged extension cables. 

b)

 

Electrical cables must be rolled entirely off of the reels. 

c)

 

Any damage to the electric cables and/or electrical components is not permitted. 

d)

 

The voltage on the identification plate must comply with the power supply. 

e)

 

Use an electrical power supply connection with earth connection and earth leakage circuit breaker. 

f)

 

The circuit breaker of the power supply must have a ‘’D’’ characteristic. Circuit breakers with a “C” or “B” 
characteristic can give problems when switching the machine on. 

g)

 

Keep the machine original; The machine is always equipped with an earthed connection, do not 
change this

 and always use earthed cables with an earthed plug. 

h)

 

Inspect and test the electrical components regularly. The electrical components have to satisfy with the 
requirements set out in the harmonised norm EN60204-1. 

Summary of Contents for BG-250 TWIN

Page 1: ...Original instructions in English OPERATING INSTRUCTIONS BG 250E BG 250P BG 250A BG 250 TWIN VERSION 2 6...

Page 2: ...s Repairs Cleaning Test on By Inspection before initial operation on __________________________________________ By __________________________________________ Date of initial operation ________________...

Page 3: ...al safety 14 4 2 Checkpoints of machine safety 14 4 3 Checkpoints of work area 14 4 4 Manual moving of the machine 14 4 5 Changing the diamond disc 15 5 Operating 16 5 1 Before switching on 16 Checkin...

Page 4: ...der to make the operating and maintenance personnel familiar with all elements of the machine 2 Machine description The Blastrac grinding machine BG 250 is an electric or petrol driven floor grinding...

Page 5: ...stic floating shroud This will save precious time and money when the machine has to be cleaned after use in asbestos The BG 250 TWIN is specially designed for fast and easy switching between normal gr...

Page 6: ...rdisc Red 250mm BG707114 Stardisc Black 250mm E09250 ARROW GRINDING DISC 250 MM E12020 250PCDG PCD GRINDING DISC 250 MM For hard sub floors BG707250 1 PCD GRINDING DISC 250 MM For soft sub floors 0050...

Page 7: ...ectrical cables and dust hose s from the surface to be treated j Make sure that there are no cables or hoses in the driving direction of the machine k Make sure that there is nothing standing or situa...

Page 8: ...r jewellery including rings d Stay alert watch what you are doing and use common sense when operating the machine e The cord of the deadman switch key should always be fastened on your arm or on to yo...

Page 9: ...dust collector must be fitted with a HEPA filter c Read the operating instructions of the dust collector before using it d The dust container bag of the dust collector must be emptied regularly Comply...

Page 10: ...spiratory protection which is sufficient for work with asbestos and must have knowledge of the correct HEPA filters that are to be used g If there is a possibility that asbestos fibres are released th...

Page 11: ...ards for the maintenance staff or other people k The suitable precautions include decontamination before disassembling the machine adequate filtered ventilation of the exhaust air from the room in whi...

Page 12: ...12 p Only lift the machine as shown in the picture below...

Page 13: ...mark on this machine Wear protecting gloves Safety shoes obliged Consult the manual before operating the machine Name address and CE mark The machine type The net weight of the machine in kilogram Th...

Page 14: ...ightness No loose bolts and or nuts are permitted Check the electrical components cables and connections for wear and or damages Dust hose connections must be reliable use hose clamps and industrial t...

Page 15: ...le down 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 Read chapter 3 Safety Make sure the machine c...

Page 16: ...tate the inverter switch inside the mains plug to the opposite position Reconnect the machine to the power supply and check the turning direction of the motor again 5 2 Switch on the BG 250E Turn on t...

Page 17: ...he gas throttle 4 up to the half and turn the contact switch 5 to start the engine When the battery is empty the machine could always be started with the cord 7 Lift the machine support with the lever...

Page 18: ...ressure drops below the setpoint switches the electrical circuit off The pressure difference is measured inside the dust hose connection and on the side of the box The measuring points may not be clos...

Page 19: ...the gas throttle The BG 250TWIN has the switch for LOW RPM s Changing the pulleys Remove the front cover Loosen 4x M14 nuts to loosen the grinding motor Release the belt tension by loosening the M10 l...

Page 20: ...E0655 M6 8x12 Hexagon socked head shoulder bolt 12 9 4x BE0016 M6 Plain washer 4x BE0158 M6 Lock nut Mounting the E12634 Machine support LONG Grinding Bushhammers When working with bushhammers the nor...

Page 21: ...rs Use an Allen key to hold the bolt and tighten the NUT on 60NM NOTE Keep in mind that working with bushhammers or cutters is tough job with a lot of vibration Although the machine is built to last b...

Page 22: ...be treated and the desired profiling Regularly check the contents of the dust collector Always wear a dust mask of at least class FFP3 when emptying the dust bin or changing the dustbag bigbag Observ...

Page 23: ...of the complete machine Replacement of the diff pressure switch filter For BG 250A The time indications are based on uninterrupted operation When the indicated number of working hours is not achieved...

Page 24: ...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 sti...

Page 25: ...and around the switch Do not allow condensate to flow into the equipment In case of sub zero temperatures malfunction or equipment failure may be possible due to icing Make sure that the seal surface...

Page 26: ...tor has a defect Reduce additional load Check the motor For Asbestos version Machine will not start green control light is turned OFF The differential pressure switch prevents machine from starting up...

Page 27: ...sc pressure 55 kg 55 kg 55 kg 50 kg 57 kg Noise level under load 83dB A 83dB A 83dB A 90dB A 83dB A Dust hose connection 75 mm Petrol tank capacity 1 Liter Oil tank capacity 0 6 L Suitable filter unit...

Page 28: ...e the exposure level over the total working period Identify additional safety measures to protect the operator from the effects of noise such as proper and regular maintenance of the machine and the a...

Page 29: ...info blastrac de WWW BLASTRAC DE BLASTRAC UKRAINE SALES SERVICE CENTRE Nezalezhnosti 14 of 21 07400 Brovary Tel 38 0 44 222 51 28 Fax 38 0 44 277 98 29 Email info blastrac com ua WWW BLASTRAC COM UA B...

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