Blastrac 2-20DT Operating Instructions Manual
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Blastrac 2-20DT Operating Instructions Manual

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Original instructions
OPERATING INSTRUCTIONS 2-20DT
VERSION 3.3

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Summary of Contents for Blastrac 2-20DT

  • Page 1 Original instructions OPERATING INSTRUCTIONS 2-20DT VERSION 3.3...

  • Page 2: Inspection Comments

    Inspection comments Inspection before initial operation on: __________________________________________ __________________________________________ Date of initial operation: __________________________________________ Serial number & Year of manufacture: __________________________ _____________ Recurring inspections / maintenance log Date / Hour counter Findings Repairs / Cleaning Test *Competent person...

  • Page 3: Table Of Contents

    Table of contents Inspection comments 1. Introduction 2. Machine description 3. Safety Work area safety Electrical safety Personal safety Machine safety Shot / steel blasting safety Dust collector safety Maintenance safety Transport safety Signs on the machine 4. Before operation Checkpoints of power supply Checkpoints of the machine Drive control...

  • Page 4: Introduction

    This machine is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge. Blastrac BV offers a course on the use of the machine in order to make the operating and maintenance personnel familiar with all elements of the machine.

  • Page 5: Safety

    Any damage to the electric cables and/or electrical components is not permitted. d) If the power supply cable is damaged, it must be replaced immediately. Only use original Blastrac parts. e) The voltage on the identification plate must comply with the power supply.

  • Page 6: Personal Safety

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

  • Page 7: Shot/Steelblasting Safety

    Be aware of your surroundings and machine operating level. Do not side hill, do not run on steep incline, this could cause machine to tip over. b) The net weight of the 2-20DT is 630 kg. Use a crane or lift when transporting the machine, use the lifting eyes / lugs of the machine.
  • Page 8 Hold on to the steering handle until the machine is of the ground. e) When lifting the machine from the ground, always use the lowest lifting speed. The cables must first be tensioned at this speed; they must not be slack when the machine is lifted from the ground. During hoisting make sure to be at a safe distance from the machine with the most optimal view on the machine and working environment.

  • Page 9: Signs On The Machine

    Signs on the machine The following stickers are placed on the machine. Meanings of these symbols are: ! Danger Hazardous voltage in motor Wear a dust mask class FFP3 or higher. even when solid state controller is OFF. Disconnect main power before servicing motor, controller or associated wiring.

  • Page 10: Before Operation

    4. Before operation Before using the machine it is of great importance to inspect the machine. It is not permitted to use the machine if the machine safety is not according the checkpoints below. Checkpoints power supply Use only extension cables for extending the main cable that are sized and marked in accordance with ...

  • Page 11: Control Box

    Control box The control box is equipped with all control elements and instruments for monitoring and controlling the machine. Control lamp “Control” Push button “Control ON” Push button “Blast wheel ON” Control lamp Motor protection Control lamp “Blast wheel” Close Push button “Control OFF”...

  • Page 12: Transport

    Transport When transporting the machine from a vehicle to the work area you can put the machine in its transport position by using the lever of the lifting mechanism. To do this, place the lever onto the bracket(2), as shown in the picture. Now press the lever down until the pivot bracket noticeably locks over its point of rotation.

  • Page 13: Connecting The Drive Motor To The Traction Wheel

    Connecting the drive motor to the traction wheel Danger of crushing! Insert the quick release pin inside the hole. Use common sense, do not get distracted during the activities. Make sure the magnetic !WARNING! valves are CLOSED. Use only 1 finger to press the button of the Make sure the Blast quick release pin, and...

  • Page 14: Blast Wheel

    Blast wheels The heart of the blast cleaning machine are the blast wheels which throw the abrasive onto the surface to be cleaned by using centrifugal force. The blast wheels are placed in a protective housing lined with replaceable wear plates. The blast wheels are driven by electric motors. Around the centre of the blastwheel there is the impeller, feeding dosed quantities of abrasive onto the blades of the turning blast wheel.

  • Page 15: Abrasive Sealing

    4.12 Abrasive sealing Magnetic seals are fitted to the front and the sides of the blast housing outlet and are surrounded by brush seals. At the rear there is a seal sliding over the floor. The seals are employed to seal the blasting area in a way to avoid leakage of any abrasive.

  • Page 16: Changing The Transmission Ratio (Option)

    If no tension measuring tool is available there is another way to have an indication of the required belt tension. This method only works when original Blastrac belts are used. There are 2 marks placed at the back side of the motor bracket. Tighten the tension nuts till the motor flange is close to the mark.

  • Page 17: Operation

    5. Operation During operating the machine, the following additional safety instructions must be followed closely. Before switching on the machine make sure that no-one can be endangered when the machine starts up. Make sure that no vehicles, such as forklift trucks and other equipment run over the electric cable and the dust hose.

  • Page 18: Operation

    When the blast head is lifted from the floor, abrasive escapes from the sides of the blast head at high speed! If the machine is moved with the blast head raised, the abrasive magnetic valves must be closed! Alter the direction only after closing the magnetic valves! Operation Carry out blasting in parallel tracks in such way that the dust hose and electric cable do not become twisted.

  • Page 19: The Blast Pattern

    The blast pattern Abrasive leaving the blast wheel blades is not thrown in all directions. Scatter is restricted to an angle of about 50°. This is achieved through the use of the control cages which surround the impellers. The position of the window in the control cages determines the blast patterns.

  • Page 20: Maintenance

    WARNING! Never loosen the cage clamps lever or try to adjust the blast wheel cover when the machine is in operation!! Maintenance Pay attention to Chapter 3 "Safety" during maintenance and repair works. Failures due to inadequate or incorrect maintenance may generate very high repair costs and long standstill periods of the machine.
  • Page 21 Remove the abrasive out of the abrasive storage hopper. 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 have been used ...

  • Page 22: Changing The Tune-Up Kit

    Changing the tune-up kit De tune-up kit consists of one blastwheel (10) , one control cage (15) and a central fixing bolt.  Remove the feed spouts by loosening the star nuts and pulling them out of the housing.  Remove the cage clamps (16) and remove the control cages (15) and control cage shims (11).

  • Page 23: Changing The Liners

    Changing the liners Centerliner bottom part Center liner top part Side liner LH Side liner RH Top liner Plenum top liner Plenum bottom liner Plenum bottom side liner  Remove the blast wheel cover plate, by unscrewing the 5 nuts and 2 bolts. ...
  • Page 24 Put in B21316-1. 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 the blast housing.
  • Page 25 Put in B21316-2. Tighten the bolt at the back of the blast housing. M12x30 / washer / spring lock This surface may washer. not stick out of the body! Mount the blast Tighten the pressbolts house covers back. carefully and tighten the nut, so the top liners are pressed against the side liners and center liner.

  • Page 26: The V-Belt

    The V-belts The V-belt drives are designed for the installed driving power. To force a higher output through an excessive high tension of the V-belts will result in broken belts, damage to the bearings and causes loss of the total efficiency.

  • Page 27: The Chain Drive

    6.6 The chain drive A chain drive needs relatively little maintenance when the correct chain is selected, when it is mounted correctly and, in this case of application, is not lubricated. The drive chain is protected by a chain guard. The chain guard prevents excessive contamination and prevents accidents.

  • Page 28: Selection Of Abrasive

    The Blastrac blast cleaning machines are designed and built to operate with Blastrac abrasive. Blastrac abrasive has a very high quality and has the rebouncing ability required for the efficient use of the machine. The selection of abrasive is very important since this is the material to carry out the surface treatment.

  • Page 29: Troubleshooting

    Incorrect height adjustment of the Adjust the magnetic seals. surface or escaping magnetic seals. abrasive at the blast head Worn magnetic and/or brush seals. Replace the magnetic and/or brush seals. Poor abrasive quality. Contact Blastrac. Worn tune-up kit. Replace the tune-up kit.
  • Page 30 Check and clean the dust hose Ripped or damaged dust hose Replace dust hose Excessive wear in blast Wrong abrasive. Contact Blastrac. housing and rebound plenum The thrown abrasive blasts the housing Incorrect setting of the control cage and not the surface to be blasted. Adjust the blast pattern.

  • Page 31: Technical Data

    Despite the fact that this guide is made with care, Blastrac takes no liability for errors in the manual and the possible consequences. We are naturally very interested in your findings and additions. No part of this publication may be reproduced and / or published in print, photocopy, or other form without prior permission by Blastrac.
  • Page 32 BLASTRAC EUROPE WE’RE READY TO ASSIST YOU! BLASTRAC THE NETHERLANDS BLASTRAC POLAND BLASTRAC FRANCE EUROPEAN HEAD OFFICE SALES & SERVICE CENTRE SALES & SERVICE CENTRE Utrechthaven 12 Golina, ul. Dworcowa 47E ZI - 29, Av. des Temps Modernes NL - 3433 PN Nieuwegein...

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