background image

 

h)

 

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. 

i)

 

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

j)

 

Always call a skilled electrician or your distributor when you have questions about the safety of the 
electrical components. 

k)

 

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. 

l)

 

Always use tools that are insulated against voltages. 

m)

 

Do not abuse the cables. Never use the cables for carrying, pulling or unplugging the machine. Keep 
cables away from heat, oil, sharp edges or moving parts. Damaged or entangled cables increase the risk 
of electric shock. Do not fold the cable or clamp it. 

n)

 

Don’t pull out the power supply cable out by the wire, but by the connector.

 

o)

 

Be careful with water on the treated surface. Electrical cables must not come into contact with water. 

p)

 

The main power switch on the machine must be in t

he “Off” position before connecting to the power 

supply. 

q)

 

During a long standstill of the machine, pull out the main plug. 

r)

 

If the machine is to be operated using power from a generator, the generator must be operated in 
accordance with the current legal regulations and directives in force. (this applies to the protective earth 
conductor in particular) in order to ensure that all safety devices are functioning and to eliminate possible 
damage to electrical components. 

 
 

3.3 

Personal safety 

a)

 

Always wear Personal Protective Equipment while working with the machine. 

-Dust mask class FFP2 or higher 
-Ear protection 
-Safety glasses with lateral protection 
-Protecting gloves 
-Safety shoes 

b)

 

Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from 
moving parts. 

c)

 

Personnel must tie back long hair and not wear loose clothing or jewellery including rings. 

d)

 

Stay alert, watch what you are doing and use common sense when operating the machine. 

e)

 

Always seek professional medical attention immediately in case of injury. 

f)

 

All persons surrounding the machine should wear Personal Protective Equipment. 

 

3.4 

Machine safety general 

a)

 

Safety functions and operating functions must work correct. 

b)

 

No loose bolts and nuts permitted. 

c)

 

Never operate machine without the guards and/or safety devices in place. 

d)

 

Never change anything on the safety devices on the machine! 

e)

 

Do not use the machine when it is damaged. 

f)

 

Do not 

open

 or

 remove protective guards

 while driving gears are running. 

g)

 

The machine, specially the handle grips must be dry and free of fats/oils. 

h)

 

If the length of the brushes is, due to wear, less than 5mm or they are extremely deformed, the brushes 
have to be replaced. Check the Service Manual for the order numbers. 

i)

 

All repair work has to be done by qualified Blastrac personnel, this guarantees a safe and reliable 
machine.

  

j)

 

Always use original Blastrac spare parts and abrasive. This will ensure the best performance. 
Only original parts meet the factory specifications and quality.  Otherwise Blastrac BV cannot guarantee 
the safety of the machine.  The part numbers can be found in the Service Manual.  

k)

 

Check the rotating direction of the motors before operation. The correct direction is given with an arrow 
on the housing of the motors.  

l)

 

If safety-critical changes occur to the machine or its working method, the machine must be shut down 
immediately! The cause of the fault must be established, and rectified. 

m)

 

In the event of operational malfunctions the machine must be shut down immediately and secured! 

n)

 

Never use the machine without a suitable (Blastrac) dust collector!

 

 

 

Summary of Contents for 2-20DT

Page 1: ...Original instructions OPERATING INSTRUCTIONS 2 20DT VERSION 3 3...

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

Page 3: ...nected drive motor 12 4 7 Connecting the drive motor to the traction wheel 13 4 8 Driving with connected drive motor 14 4 9 Blast wheel 14 4 10 The abrasive valve 14 4 11 Separator 14 4 12 Abrasive se...

Page 4: ...description The Blastrac blast cleaning machine 2 20DT is a downward blasting machine with a closed abrasive circuit exclusively designed for the pre treatment of dry frost free horizontal surfaces Th...

Page 5: ...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 Mak...

Page 6: ...higher Ear protection Safety glasses with lateral protection Protecting gloves Safety shoes b Dress properly Do not wear loose clothing or jewellery Keep your hair clothing and gloves away from moving...

Page 7: ...amaged and free of obstructions f Always switch on the dust collector first 3 7 Maintenance safety a Pull out the main plug and place it in sight before starting inspections and repairing on the machi...

Page 8: ...avoided i The lifting eyes can also be used to fasten the machine on a pallet or during transport j Always drive backwards when driving up to a ramp or grade and forwards when driving of the ramp k C...

Page 9: ...tating parts inside Keep hands clear Lock out shut down before servicing Wear a dust mask class FFP3 or higher Hearing protection is obliged Safety glasses with lateral protection are obliged CE mark...

Page 10: ...with the current legal regulations and directives in force this applies to the protective earth conductor in particular in order to ensure that all safety devices are functioning and to eliminate poss...

Page 11: ...seful for maintaining a proper maintenance schedule 11 Emergency shutdown button Red mushroom shaped emergency shutdown push button this button cuts off all power to the machine Turn to unlock After u...

Page 12: ...areful Make sure nobodies feet get under the wheels Wear appropriate safety shoes when you drive the machine to or from the work area Make sure that no vehicles such as forklift trucks and other equip...

Page 13: ...m speed The FORWARD button is used to drive forward press and hold the button to do so WARNING Do not drive forward while blasting This function is only used for maneuvering without blasting Make sure...

Page 14: ...e abrasive control lever This lever is located on the side of the control box and can be adjusted so that any quantity of abrasive can be fed to the blastwheels Optimum blast cleaning power is reached...

Page 15: ...timum functionability of the machine The adjustment is done using the 4 setting screws one each at the rear wheels and one at the front drive wheel bracket below the control box The height of the brus...

Page 16: ...middle of the span length of the V belt The deflection must be 3 5mm by a deflection force of 11N for a new belt For used belts the deflection must be 3 5mm by a deflection force of 9N Measuring belt...

Page 17: ...for a complete standstill of all drives Take the plug out of the power source Change the phases Check the turning direction of the motor again 5 3 Switching the machine on Before switching on the bla...

Page 18: ...speed can be found out by observing the blasted surface and varying the speed during the blast cleaning process Slight profiling on concrete requires a higher speed than coarse profiling 6 10 Blastin...

Page 19: ...important factor to obtain an optimum blast pattern Each control cage has a lateral window The position of the window determines where the abrasive is fed onto the blast wheel blades and where it hits...

Page 20: ...nants Daily and prior to starting work Check that all safety devices working adequate Check the feed spouts magnet and brush sealing Check the blastwheels control cages and liners Check the electric c...

Page 21: ...rate any hazard Further is advised Clean the machine every day with air and non aggressive materials Never use a high pressure water cleaner to clean the machine Store the cleaned and dry machine in a...

Page 22: ...rom the blasthousing Block the blastwheel 10 and remove the central fixing bolt Take the blastwheel 10 out of the housing and check the hub 14 for wear Use a new central fixing bolt when mounting a ne...

Page 23: ...Loosen the nuts 8 of the left and right plenum bottom side liners 9 Take them out at the bottom of the housing Loosen the nuts 10 of the top and bottom plenum liners 11 Take them out at the bottom of...

Page 24: ...M10x25 heavy washer spring lock washer Do not tighten yet Put the top liners in Make sure that the top liners sit close to the edges of the side liners and center liner Tighten the bolt at the back of...

Page 25: ...0 washer spring lock washer Mount the blast house covers back Tighten the pressbolts carefully and tighten the nut so the top liners are pressed against the side liners and center liner Mount the blas...

Page 26: ...rives have to be checked every 3 months 6 4 V belt mounting Reduce the distance between the driving motor and the bearing to release the tension of the V belt drive Carefully put the V belts in the gr...

Page 27: ...m between the chain wheels Fitting the chain Before mounting the chain it must be degreased to prevent any abrasive or abrasive particles from adhering The chain is supplied as a chain string and has...

Page 28: ...concrete or natural stone removes coatings with a thickness of 1 3 mm cleaning of steel surfaces Media nr 5 Abrasive S460 This media is used to create a coarse profile or to increase the work speed i...

Page 29: ...tment of the magnetic valve Shocked blast wheel At the start of the blast process too much abrasive at once hits the wheel The travel speed is too high Clean wire mesh top up abrasive if necessary Abr...

Page 30: ...drive Blast wheel motor does not switch on Motor protection switch has triggered Check and switch on again Check the mains power supply Blast wheel motor switches off during operation Safety fuse or...

Page 31: ...or even running but not actually in use This may significantly decrease the exposure level over the total working period Identify additional safety measures to protect the operator from the effects of...

Page 32: ...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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