Blastrac BMG-2500 Operation And Maintenance Manual
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Blastrac BMG-2500 Operation And Maintenance Manual

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BMG-2500
MULTI FUNCTION GRINDING TOOL
January 2005
OPERATIONS AND MAINTENANCE MANUAL
KEEP THIS MANUAL WITH MACHINE AT ALL TIMES FOR USE BY OPERATORS AND
!
MAINTENANCE PERSONNEL

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Summary of Contents for Blastrac BMG-2500

  • Page 1 BMG-2500 MULTI FUNCTION GRINDING TOOL January 2005 OPERATIONS AND MAINTENANCE MANUAL KEEP THIS MANUAL WITH MACHINE AT ALL TIMES FOR USE BY OPERATORS AND MAINTENANCE PERSONNEL...

  • Page 2: Table Of Contents

    For answers to your questions about this product, contact your local Distribution Representative or call: Blastrac 1-800-256-3440 or 1-405-478-3440 7 am – 6 pm, Mon-Fri (CST) Blastrac • 6215 Aluma Valley Dr. • Oklahoma City, OK 73121 USA © International Surface Preparation Group, Inc. JANUARY 2005...

  • Page 3: How To Use This Manual

    (4 X47.5 lbs each) Various diamond and optional slicer kit using tungsten carbide cutters Tools Available: (contact your local Blastrac sales office for more information) Dimensions: 48”L x 25”W x 40”H (auxiliary handle in stowed position) Cleaning path:...

  • Page 4: Applications

    Typical applications include removing thick, horizontal elastomeric floor coatings and adhesives such as tile mastics or carpet glue. The BMG-2500 uses two counter-rotating heads that hold either tungsten carbide cutters or diamond plugs. The tungsten carbide cutters are used to slice coatings and adhesives apart and the diamond plugs can be used to clean off any remaining material or to remove hard, brittle coatings and paints or prepare concrete surfaces for coating.
  • Page 5 Operating Instructions Manual BMG-2500 MULTI GRINDER DO PROTECT YOUR EYES. Observe all applicable local, state and federal safety regulations. Wear OSHA-approved safety glasses when operating this machine. DO NOT OPERATE OR MAINTAIN WITHOUT PROPER RESPIRATORY PROTECTION. Follow OSHA approved respiratory protection standards when operating this machine in a dry operation with a dust collector to avoid possible airborne contaminants.
  • Page 6 Operating Instructions Manual BMG-2500 MULTI GRINDER Connect power cord to power source and power cable extensions with approved plugs and with machine power switch turned off. If cord is damaged, disconnect power and repair immediately. 4.18 DO NOT OVEREACH. Keep proper footing and balance at all times.

  • Page 7: Table 1 - Branch Circuit And Extension Cord Requirements

    Operating Instructions Manual BMG-2500 MULTI GRINDER Branch Circuit Requirements Machine Total Amperage Customer Provided Cord Provided Extension Cord Draw Circuit Protection With Machine Requirements BMG-2500 (5 HP) 30 Amp 50FT 8/3 Type W Blastrac 4-54 DC 14.2 55FT 8/3 Type W Both Units Together 35.2...
  • Page 8 Operating Instructions Manual BMG-2500 MULTI GRINDER 4.36 DO NOT MODIFY MACHINE. Do not modify machine from its original design without written permission of the manufacturer. Non-authorized modifications can lead to serious injury or death. 4.37 SAVE THESE INSTRUCTIONS. Refer to this operations and maintenance manual frequently and use it to instruct others who may operate the machine.

  • Page 9: Pre-Operation Checklist

    Operating Instructions Manual BMG-2500 MULTI GRINDER 5.0 Pre-operation checklist Figure 2 – Warning label – read and understand manual Read entire operations and maintenance manual. Be familiar with machine and its parts. See figures 1 through 16. Figure 3 – Machine components A –...

  • Page 10: Figure 4 - Warning Label -Rotating Cutter Head And Tool Holder Layout

    Operating Instructions Manual BMG-2500 MULTI GRINDER Contact with foreign objects could cause machine to rotate violently. Before operating the machine on any surface it is strongly recommended that you walk the floor, looking for obstructions on the surface. These obstructions could include metal studs, anchor bolts, conduit stubs, electrical outlet boxes, nails, holes and uneven floors caused by cracking and settling.

  • Page 11: Figure 5 - Handle Adjustment Components

    Operating Instructions Manual BMG-2500 MULTI GRINDER Inspect the machine’s electrical cable and plugs daily for cuts or nicks in the outer shield or damage to the plug. Disconnect power source and replace or repair damaged cords and plugs. When using any electrical extension cord, check to make sure that it is rated for the proper voltage and amperage capacity.

  • Page 12: Operation

    5.14 Figure 6 – Warning – flying debris and loud noise, wear eye and ear protection Operation The Blastrac BMG-2500 has the capability to run two types of tools; either diamond /polishing plugs or tungsten carbide cutters. Tool Motor rpm...

  • Page 13: Figure 7 - Connection To Dust Collector

    This result is usually not desired and may require corrective repairs to those areas. The Blastrac BMG-2500 has a unique floating head coupling system that follows the contours of the floor and attacks the high spots first. It is important to recognize that in order for the machine to remove materials from the low spots on the floor, it must reduce the surrounding higher areas first.

  • Page 14: Figure 8 - Movement Of Machine

    Operating Instructions Manual BMG-2500 MULTI GRINDER Direction of Travel Figure 8 – Movement of machine (Looking down through the Top of the machine) © International Surface Preparation Group, Inc. JANUARY 2005...

  • Page 15: Parts Diagram And Lists

    Operating Instructions Manual BMG-2500 MULTI GRINDER 7.0 Parts diagram for Blastrac® BMG-2500 Figure 9.1 – BMG-2500 parts diagram © International Surface Preparation Group, Inc. JANUARY 2005...
  • Page 16 Operating Instructions Manual BMG-2500 MULTI GRINDER ITEM # PART # DESCRIPTION QTY. 77309 HANDLE BAR 10029 SCREW, CAP 3/8-24 X 1-3/4 10025 WASHER, FLAT 3/8 10004 NUT, LOCK 3/8-24 61108 GRIP, HAND 1" MODEL SX 77325 HANDLE EXTENSION 10030 SCREW, CAP 3/8-24 X 2...
  • Page 17 WASHER, FLAT 3/4 10063 PIN, ROLL 3/8 X 2 77345A DISC ASSEMBLY (SEE 9.4 FOR DETAIL) 77342 LEVEL, TUBULAR 10877 SCREW, CAP STSHW 10-24 X 1/2 Figure 9.1 – BMG-2500 parts list © International Surface Preparation Group, Inc. JANUARY 2005...
  • Page 18 Operating Instructions Manual BMG-2500 MULTI GRINDER Figure 9.2 – BMG-2500 parts diagram © International Surface Preparation Group, Inc. JANUARY 2005...
  • Page 19 BRUSH EXT., FRONT VAC CHAMBER 77337 BRUSH EXT., REAR VAC CHAMBER 11674 SCREW, CAP STSHW 10-24 X 3/8 77349 HOSE, RED 1"ID X 1-1/2"OD X 11"L Figure 9.2 – BMG-2500 parts list © International Surface Preparation Group, Inc. JANUARY 2005...
  • Page 20 Operating Instructions Manual BMG-2500 MULTI GRINDER Figure 9.3 – BMG-2500 parts diagram © International Surface Preparation Group, Inc. JANUARY 2005...
  • Page 21 10115 KEY 1/4 SQ X 2 10250 BELT 5L-310 10005 PLUG, HOLE 7/8" (CHROME) 10740 CONDUIT LOCK NUT 3/4 NPT 10605 STRAIN RELIEF 3/4NPT X .650-.750" Figure 9.3 – BMG-2500 parts list © International Surface Preparation Group, Inc. JANUARY 2005...
  • Page 22 Operating Instructions Manual BMG-2500 MULTI GRINDER Figure 9.4 – BMG-2500 parts diagram ITEM # PART # DESCRIPTION QTY. 77345A DISC ASSEMBLY, PLUG HOLDER 77345 DISC, PLUG STONE P001428 COUPLING, MORFLEX 602 11675 SCREW, CAP 1/2-20 X 2-3/4 10045 WASHER, LOCK 1/2...

  • Page 23: Figure 10 - Electrical Diagrams

    Operating Instructions Manual BMG-2500 MULTI GRINDER Figure 10.1 – BMG-2500 electric schematic © International Surface Preparation Group, Inc. JANUARY 2005...
  • Page 24 Operating Instructions Manual BMG-2500 MULTI GRINDER Figure 10.2 – BMG-2500 enclosure detail ITEM # PART # DESCRIPTION P002024 CIRCUIT BREAKER, 1.0 AMP, TWO POLE P003560 SHUNT TRIP, 24VDC HZ, E-STOP COMPONENT P003561 MCP/ CIRCUIT PROTECTOR, 20-25 AMP P003562 SWITCH, ESTOP, LATCHING, PULL TO RELEASE, 1 NO...

  • Page 25: Accessories List

    Operating Instructions Manual BMG-2500 MULTI GRINDER 8.0 Accessories TUNGSTEN CARBIDE CUTTERS 6907890 CARBIDE CUTTER- SQUARE P001026 CARBIDE CUTTER- TRIANGLE P001429 SQ. CUTTER HOLDER BLOCK WITH HARDWARE P001027 TRI. CUTTER HOLDER BLOCK WITH HARDWARE DIAMOND PLUGS DP-1PD3040 PLUG/DIAMOND, 30/40 GRIT, SOFT MATRIX...

  • Page 26: Maintenance And Inspection

    (3) grease zerks once every 50 hours of work with Lubriplate No. 630-2, or other good bearing grease. 10.1.2 Main gear case- The gear case of your BMG-2500 has been pre-lubricated at the factory with approximately 3 pounds of Lubriplate, No. 630-2 grease. We recommend continued use of this material.

  • Page 27: Figure 12 - Warning Label - Hot Surface

    Gear case maintenance - If you suspect problems with the gears in the gear case, such as out of synchronization tool holder arms, do not attempt to repair the machine yourself. Contact Blastrac at 1-800-256-3440 to arrange for factory service to be performed.

  • Page 28: Figure 14 - Tapered Plug Holder

    Operating Instructions Manual BMG-2500 MULTI GRINDER 10.6.2 Remove the pocket weights from the machine. Tilt machine back to raise bottom of machine off of the floor. Secure machine from moving by blocking wheels. It is recommended to have a second person assist with holding the machine from moving during maintenance.

  • Page 29: Figure 15 - Holder Blocks Attached To Block Holder Arm

    The machine can be switched from the tool holders for diamond plugs by unbolting them and replacing with the other style accessory plates. Accessory plates on the BMG-2500 are nearly identical. You must verify rotation in order for the carbide inserts to perform properly.

  • Page 30: Figure 17 - Proper Installation And Rotation Of Carbides

    Left Hand Carbide Holder Bottom of photo is “front” of machine Figure 17 – Photo of bottom of BMG-2500 illustrating proper rotation, proper Carbide Holder, Carbide Holder Block and Cutter placement. Cutter Placement and Adjustment. Carbide placement will vary from application to application. In 10.7.2...

  • Page 31: Figure 18 - Clean-Out Area For Vacuum Port

    10.8.3 During the cleaning of the machine, inspect all components for wear and tear. If you find worn parts, replace them with original Blastrac® parts. Check the bolts on the Morflex® couplings and the bolts and nuts used to hold the holder blocks and cutters in place. Inspect the diamond holder arms for cracks or other damage.

  • Page 32: Operating Tips

    10.10.1 The BMG-2500 is connected to the power source but the motor will not start. Check to make sure that the voltage at the power source is correct as per the specification in section 2.
  • Page 33 Operating Instructions Manual BMG-2500 MULTI GRINDER 11.2 Diamond plug tools 11.2.1 When running the machine with diamond plugs the motor turning direction is not a concern. The diamond plugs are not sensitive to direction. 11.2.2 The plugs are hot from friction build-up! Wear appropriate gloves when handling the plugs.

  • Page 34: Warranty And Service

    This document is to be used as a guide in determining warranty policies and procedures for Blastrac® and its products. It is to be used in determining whether a warranty is justified and also as a procedural guide in completing a BLASTRAC warranty claim form.
  • Page 35 Operating Instructions Manual BMG-2500 MULTI GRINDER 12.1.2.10 Blastrac reserves the right to establish specific warranty terms for used or demo machines on an individual transaction basis. Invoices covering such merchandise will clearly state the provisions of the applicable warranty for each specific transaction.

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