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Operating Instructions 

BG-250G11/G13

Operation 

November 2004

 

© Copyright Blastrac 

34 

Revision (A) 12-23-04 

 

Contents Chapter 6 

 
6.1 Operation 
 
6.2 Switching-off 

the 

machine 

 
6.3 Emergency 

Shutdown 

 
6.4 Safety 

shutdown 

 
6.5  Restarting after a fault 
 
6.6  Procedures after lengthy down time 
 

Summary of Contents for bg-250g11

Page 1: ...Copyright Blastrac Revision A 12 23 04 BG 250G11 BG 250G13 Gas Powered Concrete Grinder Blastrac 6215 N Aluma Valley Dr Oklahoma City OK 73121 1 800 256 3440...

Page 2: ...an Before attempting to operate service or maintain the machine the personnel should thoroughly familiarize themselves with the physical makeup of the machine be familiar with the major systems of the...

Page 3: ...ents of the machine and have a general understanding of overall operations The operating and maintenance personnel must obey all the warnings and safety precautions posted on the machine and stated th...

Page 4: ...a period of one hundred and eighty 180 days from the date of delivery in the case of Rental Fleet Machines date of assignment to Rental Fleet Such warranty is extended only to the buyer who purchases...

Page 5: ...action basis Invoices covering such merchandise will clearly state the provisions of the applicable warranty for each specific transaction 11 WE DO NOT AUTHORIZE ANY PERSON REPRESENTATIVE OR SERVICE O...

Page 6: ...ption of the machine 18 3 4 Operating elements 19 3 5 The tools 22 3 6 Care and Maintenance 23 Chapter 4 Transport 4 1 Unit specification 25 4 2 Manual mode of moving the machine 25 4 3 Transport with...

Page 7: ...e 3 3 Starting Stopping 20 Figure 3 4 The Tools 22 Figure 4 1 Transport 26 Figure 5 1 Handgrip and Operating Lever 30 Figure 5 2 Starting Stopping 31 Figure 6 1 Operation Movement of machine 36 Figure...

Page 8: ...13 Technical Data November 2004 Copyright Blastrac 1 Revision A 12 23 04 Contents Chapter 1 1 1 Rating 1 2 Unit specifications 1 3 Operating range and correct usage 1 4 Machine type designation 1 5 Ad...

Page 9: ...1 G13 Manufacturer Blastrac 6215 N Aluma Valley Dr Oklahoma City OK 73121 1 2 Unit specifications Technical data Grinding Machine BG 250G11 G13 Power consumption 11HP 13HP Connected loads 12V Tool dia...

Page 10: ...Operating range and correct usage The grinding machine BG 250G11 G13 is exclusively designed to grind horizontal surfaces The machine may not be used for other purposes The manufacturer will not be l...

Page 11: ...ound level of 85 db A That sound level varies depending on the location If the scale of sound level reaches 85 db A or more the operators and the persons who work in the surroundings must wear noise p...

Page 12: ...ents Chapter 2 2 1 Warnings and symbols 2 2 Organisational measures 2 3 Personnel selection and qualification 2 4 Safety precautions applicable to some operating sequences 2 5 Special work instruction...

Page 13: ...e Symbol of operational safety In these Operating Instructions this symbol will be shown next to safety precautions that are to be taken in order to ensure prevention to life and injury Follow these i...

Page 14: ...ng Instructions BG 250G11 G13 Safety November 2004 Copyright Blastrac 7 Revision A 12 23 04 Information instructions and restrictions with regard to possible risks to persons or to extensive material...

Page 15: ...23 04 Warning against dangerous voltages Indications relating to protective devices in electrical appliances Indications where consultation with the manufacturer is required Instructions relating to...

Page 16: ...rocedures and personnel allocation Personnel entrusted with working with the machine must have read the Operating Instructions before starting work in particular the Safety Instructions chapter To rea...

Page 17: ...s always guaranteed if original spare parts are used Intervals for recurring checks and inspections specified in these Operating Instructions must be complied with To perform maintenance work correctl...

Page 18: ...vision of a skilled electrician as well as in accordance with the electrical engineering regulations 2 4 Safety precautions applicable to some operating sequences Ban any method of working that impair...

Page 19: ...liged to wear close fitting protective clothing Use only extension cable for extending the main cable that are sized and marked in accordance with the overall power consumption of the machine and the...

Page 20: ...Maintenance Mode for specific details Always dispose of the contents of the dust bin of a possible connected dust collector used before loading it on van or truck Observe the waste disposal regulatio...

Page 21: ...re correctly adjusted if necessary 2 6 Definition of the Maintenance Mode Definition The machine is in a safe condition when it cannot generate any hazard Putting the equipment in the Maintenance Mode...

Page 22: ...s machine is equipped with an electric start powered by a battery located behind the main upright Be sure battery terminals are secure at all times Lose battery terminals can create a spark that may p...

Page 23: ...G11 G13 General November 2004 Copyright Blastrac 16 Revision A 12 23 04 Contents Chapter 3 3 1 Range of application 3 2 Scope of supply 3 3 Description of the machine 3 4 Operating elements 3 5 The to...

Page 24: ...ineral adhesives Smoothing of concrete 3 2 Scope of supply Scope of supply of the machine Grinding Machine BG 250G11 G13 Filter unit Turbo Vac II or 1 13DC Optional Dust hose Optional Blastrac Operati...

Page 25: ...3 4 The Blastrac grinding machine BG 250G11 G13 can produce a pattern of 10 inches 250 mm and distinguishes itself by its high economic efficiency and easy handling The machine levels uneven and undu...

Page 26: ...efore Switching on the BG 250G11 G13 the front part of the grinding machine must be lifted by pushing down on the handgrip 2 and pulling back on the jack stand operating lever 1 When the machine has s...

Page 27: ...ine The engine will need to remain in the choke condition until it warms up See the Honda Operating Manual for details concerning the operation of the Honda engine Electric Start G13 See Handgrip and...

Page 28: ...supply to all units of the machine This red button is also used as OFF switch on the G11 Throttle Control The throttle control may be pushed all the way forward to engage the choke and pulled all the...

Page 29: ...tructions BG 250G11 G13 General November 2004 Copyright Blastrac 22 Revision A 12 23 04 3 5 The Tools Fig 3 4 1 Brush seal 5 Flexible Coupling 2 Diamond grinding disc 6 Bearing Unit 3 Adapter 7 Jack s...

Page 30: ...operate the machine if you are unsure Be sure the BG 250G11 G13 is clean and free of any debris before operating Turn off the machine and check the cleanliness periodically and clean if necessary The...

Page 31: ...11 G13 Transport November 2004 Copyright Blastrac 24 Revision A 12 23 04 Contents Chapter 4 4 1 Unit specifications 4 2 Manual mode of moving the machine 4 3 Transport with cranes or lifts 4 4 Transpo...

Page 32: ...urbo Vac II 1 13 DC Dimensions mm L x W x H 20 00 x 18 00 x 51 00 508 x 457 x 1295 31 x 19 x 29 788 x 483 x 737 Weight empty 68lbs 31 kg 120 lbs 55 kg 4 2 Manual mode of moving the machine In order to...

Page 33: ...d for the specified load Notice the machine weight from chapter 4 1 Unit specifications Never fasten a sling or lifting device to or around the handle of the machine The handle will break causing dama...

Page 34: ...ng When the jack stand is down secure the machine with straps and block wheels to make sure the machine will not move during transport Never transport the machine with gasoline in the tank Enclosed tr...

Page 35: ...Operating Instructions BG 250G11 G13 Initial Operation November 2004 Copyright Blastrac 28 Revision A 12 23 04 Contents Chapter 5 5 1 Preparation for initial operation 5 2 Initial operation...

Page 36: ...eck fuel level See Honda Operating Manual for fuelling guidelines For 13HP version be sure battery is in good condition and battery terminals are clean and tight Loose cables prevent a fire hazard Che...

Page 37: ...shing down on the handgrip 2 and pulling back on the operating lever 1 Pulling back on the operating lever 1 will lower the jack stand and take the weight off the grinding disc Be sure machine is stab...

Page 38: ...e Handgrip and Operating Lever and make sure the diamond disc is off the ground and the machine is secure before starting Push the throttle control forward all the way to engage the engine choke With...

Page 39: ...e Honda engine Emergency Stop switch Pressing this switch immediately interrupts the power supply to all units of the machine This red button is also used as OFF switch on the G11 Throttle Control The...

Page 40: ...Operating Instructions BG 250G11 G13 Initial Operation November 2004 Copyright Blastrac 33 Revision A 12 23 04 Notes...

Page 41: ...peration November 2004 Copyright Blastrac 34 Revision A 12 23 04 Contents Chapter 6 6 1 Operation 6 2 Switching off the machine 6 3 Emergency Shutdown 6 4 Safety shutdown 6 5 Restarting after a fault...

Page 42: ...ginning daily grinding work be sure all fasteners are tight and secure Pay special attention to those that connect drive components Before switching on make sure that all guards are in place Be sure t...

Page 43: ...f you have doubts how to start up the machine read chapter 5 1 and 5 2 of this operating manual Never start the machine if you are not completely confident on how to operate the machine You should gri...

Page 44: ...esses Segment hardness may be matched to specific jobs resulting in successful applications and improved diamond wear life 6 2 Switching off the machine The grinding machine must be lifted by pushing...

Page 45: ...e Maintenance Mode condition chapter 2 6 Read and understand the entire Blastrac Operating Instructions and Honda Engine Manual before operating or servicing this machine Do not depend on individual c...

Page 46: ...s and the flexible coupling are not touching the floor Clean the machine and cover it with a tarp Empty gasoline tank G13 Disconnect battery terminals 2 After storage Be sure all fasteners are tight a...

Page 47: ...23 04 Contents Chapter 7 7 1 Recommendations 7 2 Maintenance and inspection list 7 3 Repairing 7 4 Grinding disc replacement assembly 7 5 Bearing Unit 7 6 Flexible coupling 7 7 The V Belt drive 7 8 Th...

Page 48: ...n list for recommendations on preventative actions The time indications are based on uninterrupted operation When the indicated number of working hours is not achieved during the corresponding period...

Page 49: ...pply cable for damages Check the hose to the filter for damages Check the hose inside of the machine for damages Check whether there is any foreign matter in the coupling of the grinding disc Make sur...

Page 50: ...s yourself for specific reason the following instructions and work sequence have to be observed You should also stock all spare or wear parts that cannot be supplied quickly As a rule downtime is more...

Page 51: ...andgrips 1 and lay it down on the chassis 3 Now secure the machine against tilt back with a block 2 about 17 75 45 cm long Shake machine to make sure it will not move 4 Unscrew the four countersunk he...

Page 52: ...the lubricating nipple 2 in the bearing After lubricating put the machine on the jack stand 4 let the machine run approximately 5 min to squeeze out the excess of grease from the housing 1 at the poin...

Page 53: ...fluence on it Immediately shut down the machine if unusual vibrations or noises are experienced Typically the cause of the unusual operation is a defective coupling or debris trapped in the coupling D...

Page 54: ...s of the total efficiency Too low belt tension will cause slipping with the result of a very high temperature of the V belt a premature wear Temperatures over 160 F 70 C for a long period will decreas...

Page 55: ...unit using tensioning screw attached to the motor base 4 Remove the V Belt Fig 7 5 Assembly 1 Put on a new V Belt 2 Move the motor up to the operator panel using tensioning screw attached to the motor...

Page 56: ...aring unit The control of the correct V belt tension takes place by pressing your thumb according to the figure 7 6 It should be between 5 16 1 2 8 13 mm Fig 7 6 7 8 The driving motor The motor is des...

Page 57: ...ervals 7 10 Spare Blastrac recommends having the following spare parts on stock to avoid long down times Part No Description Qty 000118 Flexible coupling 2 P003860 Count S Head Screw 20 B20507 Spacer...

Page 58: ...Operating Instructions BG 250G11 G13 Maintenance November 2004 Copyright Blastrac 51 Revision A 12 23 04 Notes...

Page 59: ...Operating Instructions BG 250G11 G13 Electrical November 2004 Copyright Blastrac 52 Revision A 12 23 04 Contents Chapter 8 8 1 Directions for electrical engineering 8 2 Electric circuits diagrams...

Page 60: ...electric items with reference to the circuit diagrams in chapter 8 1 or call a Blastrac service centre Work on electrical equipment or operating materials may only be undertaken by a skilled electric...

Page 61: ...Operating Instructions BG 250G11 G13 Electrical November 2004 Copyright Blastrac 54 Revision A 12 23 04 8 2 Wiring Schematics BG 250G11...

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Page 63: ...Operating Instructions BG 250G11 G13 Electrical November 2004 Copyright Blastrac 55 Revision A 12 23 04 BG 250G13...

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Page 65: ...Operating Instructions BG 250G11 G13 Troubleshooting November 2004 Copyright Blastrac 56 Revision A 12 23 04 Contents Chapter 9 9 1 Grinder troubleshooting 9 2 Electrical troubleshooting...

Page 66: ...ding disc Replace all worn or broken parts Check flexible coupling Tighten screws in the grinding disc Unusual noises Defective axle bearing Wrong tension of the V belt Dirt and debris in flexible cou...

Page 67: ...F Pull out E Stop Turn switch to ON Turn switch to ON Work on electrical equipment or operating materials may only be undertaken by a skilled electrician or by trained persons under the guidance and s...

Page 68: ...Operating Instructions BG 250G11 G13 Spare Parts November 2004 Copyright Blastrac 59 Revision A 12 23 04 Contents Chapter 10 10 1 Spares Parts List BG250G11 G13...

Page 69: ...Operating Instructions BG 250G11 G13 Spare Parts November 2004 Copyright Blastrac 60 Revision A 12 23 04...

Page 70: ...003654 1 Throttle Cable Assy 14 DG01 1 Chasis 15 P003658 1 Wiring Harness 16 P003653 2 Battery 17 B20969 2 Castor 18 DG30 1 Support 19 20 B21014 1 Brush seal compl 21 DG05 1 Adapter Dia disk 22 B20507...

Page 71: ...13 Continued Item Number Part Number Quantity Description 40 DG64 2 Fingerhandle 41 DG59 1 Adjusting pin 42 DG58 1 Guide bolt 43 DG50 1 Knee lever 44 DG56 1 Pivot pin 45 DG61 1 Fork head 46 DG52 1 Lev...

Page 72: ...Operating Instructions BG 250G11 G13 Spare Parts November 2004 Copyright Blastrac 63 Revision A 12 23 04 Notes...

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