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Operating Instructions                                                     1-8DEC 230V 

Safety Instructions 

 
 

1.2 Continued 

 
2.  All  drive  guards  must  be  kept  in  place  and  in  good  condition  except  during 

maintenance or when repair work is being performed.  Once maintenance or repair 
work is complete, be sure all guards are securely remounted. 

 
3.  Safety glasses with side shields should  always be worn when working with or near 

equipment in use.  Gloves, when applicable, can be worn for added protection. 

 
4.  Loose  fitting  clothing  and  gloves  should  not  be  worn  when  working  near  belts, 

chains, sprockets, shafts and other moveable components. 

 
5.  The blast machine and all areas around the machine should be kept clean.  Loose 

media in particular can become hazardous for foot traffic.  All abrasive leaks should 
be repaired 

immediately

 to help keep the work area free of loose abrasive. 

 
6. 

Any  condition(s)  that  may  result  in  additional  damage  to  the  equipment  or 
cause injury to nearby personnel should be repaired

 

immediately.

  

 
7. 

Do  not  attempt  to  make  adjustments  to  the  feed  spout  or  any  control  cage 
components  while  the  machine  is  in  motion  or  the  blast  wheel  is  operating.  
All adjustments must be made when the machine is stationary, the blast wheel 
is completely stopped and power has been disconnected. 

 
8. 

Obey  all  safety  and  danger  signs  posted  on  the  machine  and  all  information 
posted where the machine is being operated. 

 
9. 

Do  not  operate  Blastrac  machinery  in  the  rain  or  when  heavy  moisture  is 
present.  Do not expose the abrasive supply to any type of moisture.

  Sticky, tar 

related  and  rubber  surfaces  should  be  avoided  when  using  Blastrac  machinery. 
Always  drain  unused  abrasive  from  the  machine  and  empty  the  dust  collector 
hopper before transporting the equipment. 

 
 
 
 
 
 

Summary of Contents for 1-8DECMKI

Page 1: ...MODEL 1 8DECMKI Shot Blasting System WALK BEHIND MANUAL PUSH Trust the Original Surface Preparation Experts 800 256 3440 blastrac com...

Page 2: ...Operating Instructions 1 8DEC 230V Safety Instructions Section 1 1 1 Safety Instructions 1 2 Safety Mechanical 1 3 Safety Electrical 1 4 Safety Ventilation 1...

Page 3: ...ctured for specific floor preparation applications The engineering design of this airless media blast machine incorporates several basic elements These include the airless media blast wheel media recy...

Page 4: ...o recommended Long sleeve shirts and safety shoes should be worn and loose clothing should be avoided The abrasive used in the machine impacts the work surface at high velocity Any leakage during norm...

Page 5: ...d immediately to help keep the work area free of loose abrasive 6 Any condition s that may result in additional damage to the equipment or cause injury to nearby personnel should be repaired immediate...

Page 6: ...in this equipment Never use oversized fuses or bypass any fuses to operate the machinery Always refer to the electrical drawings provided for the individual machines for proper size and type of overcu...

Page 7: ...damage machine components Your Blastrac Blast Unit can be operated on 208 230 volt single phase 60 Hertz power ONLY Do not attempt to operate this equipment on 50 Hertz power A 50 Hertz blast unit is...

Page 8: ...Operating Instructions 1 8DEC 230V Operator Responsibilities Section 2 2 1 Operator Responsibilities 7...

Page 9: ...operator shall provide the necessary blasting media in accordance with the recommendations of a Blastrac technician so that the machine will operate at maximum efficiency 4 The operator shall be respo...

Page 10: ...asive Control Valve 3 4 Blast Unit Rebound Chamber Plenum 3 5 Blast Unit Deflector Plate Hopper 3 6 Blast Unit Abrasive Seals 3 7 Blast Unit Chassis 3 8 Blast Unit Electrical Control Panel 3 9 Dust Co...

Page 11: ...nto a specially designed chamber called the separator Inside this chamber an air wash cleans the abrasive and allows the contaminants to be extracted back to the dust collector The clean abrasive is t...

Page 12: ...ge is very important when setting up the blast pattern covered in Section 5 An analog ammeter provides readout of the current of electric motor that drives the blast wheel This provides a direct indic...

Page 13: ...at the bottom of the plate and effectively absorbs any residual force left in the moving mixture The contaminated abrasive then falls through a curtain of high velocity clean air which physically sep...

Page 14: ...is drawing This allows the operator to monitor and control abrasive flow 2 Blast Wheel Start Stop Run Switch Allows operator to start or stop the blast wheel 3 Abrasive Control Valve Throttle Used to...

Page 15: ...ector during normal operation for the reasons listed below Cools blast machine components Helps remove residual abrasive and dust from work surface Collects and separates dust and contaminants from re...

Page 16: ...o the ventilation system are The skirts around the blast housing should be kept in good repair The seals around the separator lid should be checked regularly The hose connections to the blast unit and...

Page 17: ...ac shot cleaning systems This steel abrasive is made of high quality martensitic steel to provide long operating life and minimal abrasive breakdown The selection of proper abrasive is very important...

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Page 21: ...Operating Instructions 1 8DEC 230V Start Up Procedures and Precautions Section 4 4 1 Start Up 4 2 Blast Cleaning 4 3 Shut Down 20...

Page 22: ...the shot hopper of the blast unit to be sure that the shot has been drained At the end of each job the shot hopper should be emptied 4 Check the blast wheel control cage feed spout liners seals and ho...

Page 23: ...pment Be sure that the surface is moisture free Blastrac machinery is designed to work on clean dry surfaces only 14 Make certain that the abrasive control valve is in the closed position Remove the s...

Page 24: ...rip is uneven refer to Section 5 Blast Pattern to adjust the HOT SPOT 4 2 Blast Cleaning 1 Ease the abrasive valve open while monitoring the ammeter readout Do not exceed the amperage rating for the o...

Page 25: ...machine may change when the blast components start to wear The operator should always note the blast pattern during normal cleaning and make adjustments or replace parts when necessary See Section 5...

Page 26: ...Operating Instructions 1 8DEC 230V Setting the Correct Blast Pattern Section 5 5 1 Setting the Correct Blast Pattern 25...

Page 27: ...ctions These kits must be periodically replaced to ensure that they provide the proper blast pattern and to eliminate excessive wear which can cause internal component and bearing unit damage 3 Abrasi...

Page 28: ...teel plate beneath the machine and blast at full amperage for about 45 seconds Do not move the machine during this test The resulting hot spot should be centered as it appears on Figure B If the hot s...

Page 29: ...Operating Instructions 1 8DEC 230V Edging Mode Section 6 6 1 Edging Mode 28...

Page 30: ...the edging mode to protect the threads 2 Move the machine to the area in which the edging will be done and see if the machine can be moved freely Adjust the height of the machine if necessary 3 Begin...

Page 31: ...30...

Page 32: ...Operating Instructions 1 8DEC 230V Equipment Calibration Section 7 7 1 Equipment Calibration 31...

Page 33: ...etting the Correct Blast Pattern figures A B and C 3 Abrasive Selection Recommendations Steel Shot Size Brush blast of smooth concrete S 170 to S 280 smaller size will produce a brighter etch Rough co...

Page 34: ...208 230 volts should not exceed 17 amps To help ensure that this limit is not exceeded the abrasive control handle has a screw lock adjustment to keep the abrasive valve from opening too far Once the...

Page 35: ...Operating Instructions 1 8DEC 230V Wear Parts Section 8 8 1 Wear Parts 8 2 Maintenance Log 34...

Page 36: ...Blast Wheel 5 Hrs Blades Worn by more than 50 Remove hub bolt and replace Feed Spout 50 Hrs Thin at Wheel Entry Remove and replace Control Cage 5 Hrs Eroded Edges Remove and replace adjust pattern Re...

Page 37: ...an or replace Checked OK Change Airline Inspect for leaks Checked OK Change Shot valve Inspect Checked OK Change Seals Inspect for wear Checked OK Change Bearings Inspect set screws and grease Checked...

Page 38: ...Operating Instructions 1 8DEC 230V Blast Wheel Replacement Section 9 9 1 Blast Wheel Replacement 37...

Page 39: ...tween the blast wheel and the control cage Remove the control cage mounting assembly 4 Remove the socket head cap screw and lock washers from the blast wheel and remove the blast wheel 5 Check the whe...

Page 40: ...mbly of the blast wheel and its associated parts are illustrated on Figure Number 2 These parts must be maintained in good operating condition in order to enhance the life of the bearing unit and the...

Page 41: ...rating Instructions 1 8DEC 230V Troubleshooting Section 10 10 1 Troubleshooting Blast Unit 10 2 Troubleshooting Ventilation System Dust Collector 10 3 Vacuum Adjustment 10 4 Troubleshooting Electrical...

Page 42: ...ken blades Replace wheel kit Check separator and ventilation system Chipped or broken blades will permanently unbalance the blast wheel and can cause damage to other components Change wheel kit immedi...

Page 43: ...stantial percentage of fines and contaminants Check ventilation Check for obstructions in the abrasive feed i e feed spout abrasive control valve and separator screen May be worn Replace wheel kit Che...

Page 44: ...on steering handle to raise machine to clear small obstructions or uneven work surfaces Shut abrasive valve if obstruction cannot be cleared Pull back machine to clear Use caution when raising seal du...

Page 45: ...it properly 10 3 Vacuum Adjustment For normal concrete surfaces Blastrac does not recommend using more than the 25 feet of exhaust hose supplied with the blast system Adding additional hose can cause...

Page 46: ...relay tripped Broken damaged or loose wiring Long extension cord being used Check main power cable at electrical source Must be 208 230 volt 60hz single phase power 20 amp service Reset overload rela...

Page 47: ...Operating Instructions 1 8DEC 230V Electrical Troubleshooting Section 11 11 1 Electrical Troubleshooting 11 2 General 11 3 Blast Unit 46...

Page 48: ...y must be locked off tied off or otherwise neutralized to be considered harmless 2 It is important that operators and maintenance personnel receive regular equipment safety training 3 AND have a thoro...

Page 49: ...olts that the cable length not exceed 50 feet If a longer cable is necessary contact your Blastrac specialist for recommendations on new cable dimensions 11 3 Blast Unit Blast Wheel will not operate L...

Page 50: ...Operating Instructions 1 8DEC 230V Specifications Section 12 12 1 Specifications 49...

Page 51: ...eight excluding handle 36 inches Height including handle in normal position 37 inches Width 12 3 8 inches Weight 190 pounds Vacuum Hose Length 25 feet Production Capacity Approx 215 square feet hour C...

Page 52: ...noted on shipping receipt Hand Tool Products Blastrac warrants its BLASTRAC Hand Tool Products including hand grinders and accessories against defects in material and workmanship under normal and prop...

Page 53: ...otors batteries tires and all other parts See component manufacture warranty 7 Blastrac reserves the right to make product changes or improvements without prior notice and without undertaking any obli...

Page 54: ...Warranty Registration IMPORTANT To ensure that your Blastrac machine is covered under warranty please provide the information recorded here by registering online at blastrac com or complete this page...

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