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MAINTENANCE  and TROUBLESHOOTING

Your  MICRO-BLASTER  has  been  designed  to  provide

many  years  of  service  with  a  minimum  of  care.  Routine
disassembly,  cleaning  and  lubrication  with  a  light  oil  will  keep
your MICRO-BLASTER fully  functional. Special  attention  should
be  paid  to  maintaining  free  movement  of  the  firing  pin  which
extends from the tip of the MICRO-BLASTER.  Always  check for
free movement before each use and remedy any conditions  that
might inhibit this free movement before using.

CAUTION!  NEVER  USE  YOUR  MICRO-BLASTER  IF  THE
FIRING  PIN  DOES  NOT  MOVE  FREELY!  SERIOUS  INJURY
MAY RESULT!
        
         Other  than  problems  with  drilled  holes  mentioned  above
we have encountered relatively few  problems  using this device.
When cracking  masonry  in  a  hole  or  ditch the  pulling action  on
the  release  cord  may  tend  to  lift the  MICRO-BLASTER  out  of
the drilled hole. If this happens the Firing pin will  not  be  able  to
make  proper  contact  with  the  metal  primer  in  the  end  of  the
cartridge and will not initiate. To solve this  problem  redirect  the
release cord so that the pulling action  does  not  lift the  MICRO-
BLASTER out of  the  hole  when  the  Release  Cord  is  pulled.  A
weight  with  a  small  pulley  positioned  below  the  level  of  the
Release  Plate  with  the  Release  Cord    passed  through  the
pulley  has  worked  well  to  solve  this  problem.  Also  drilling  a
shallow  second  hole  adjacent  to  the  first  hole  in  which  an
anchor/pulley  assembly  is  installed  can  also  provide  the
required  redirect  of  the  Release  Cord.  We  are  working  on  a
simple  device  to  do  this  which  when  finished    will  be  available
through our dealers or online.

When  cracking  rocks  in  situations  where  gravity  does  not

hold the MICRO-BLASTER in place the user will be required  to
use  their  ingenuity  to  hold  the  device  in  place.  The  use  of
secondary  holes  to  mount  anchors  which  hold  the  MICRO-
BLASTER by means of bungee cords  has been  used  with  good
success  in  these  situations.

Summary of Contents for MICRO-BLASTER 1

Page 1: ...MICRO BLASTER 1 INSTRUCTIONS ...

Page 2: ... items 1 MICRO BLASTER I UNIT 1 RUBBER BULB HOLE BLOWER 25 FT RELEASE CORD W CLIP WINDER 2 TAPERED DRIFT PINS 1 HEX KEY 1 8 INCH 1 5 16 BORE BRUSH 1 CORD REDIRECT KIT 1 INSTRUCTION CARD 1 INSTRUCTION MANUAL MICRO BLASTER CARTRIDGES ARE SUPPLIED SEPARATELY CONTACT YOUR DEALER OR EZEBREAK FOR DETAILS Ezebreak LLC 1 Clay St PO Box 29 Frankford WV 24938 V 304 497 9970 F 304 497 9971 www ezebreak com 2...

Page 3: ...n activation of the Micro Blaster Cartridge If these gasses are allowed to escape too easily through cracks etc sufficient force to crack the rock will not be generated In situations where one has encountered flawed material or the material has cracked from the use of MICRO BLASTING frost or whatever an alternative technique such as plugs and feathers or more simply the use of suitably sized drift...

Page 4: ...the hole is not able to accommodate the entire length of the MICRO BLASTER in turn allowing the tip to make contact with the primer end of the cartridge no initiation of the cartridge will occur Depending on the hardness and type of material this hole should be 4 to 12 inches from the edge of the material you intend to crack Experience will dictate placement of the hole Drilling in the center of a...

Page 5: ...he end of the cartridge with the metal primer is positioned correctly out so that it will make contact with the tip of the MICRO BLASTER when it is inserted into the hole in the next step 5 Using the Hole Blower tube gently push the cartridge to the bottom of the hole USE ONLY THE HOLE BLOWER TUBE TO PUSH THE CARTRIDGE INTO THE HOLE If step 3 was properly completed this will require very little or...

Page 6: ...t you can now see the green head of the Firing Pin through the countersunk hole in the side of your MICRO BLASTER BODY If you cannot see the green it is very likely that the tip of the MICRO BLASTER is not in contact with the end of the cartridge The MICRO BLASTER will not initiate the cartridge if the tip is not in contact with the cartridge When you can see green through the hole the tip of the ...

Page 7: ... happens the Firing pin will not be able to make proper contact with the metal primer in the end of the cartridge and will not initiate To solve this problem redirect the release cord so that the pulling action does not lift the MICRO BLASTER out of the hole when the Release Cord is pulled A weight with a small pulley positioned below the level of the Release Plate with the Release Cord passed thr...

Page 8: ...ES maintain Micro Blaster in top condition ACTUATOR PIN PROBLEMS As has been stated earlier it is extremely important to maintain free movement of the actuator pin Disassemble clean and re lubricate often Pins dry fired against hard materials have been known to crack due to the high hardness of the pin If it is noticed that the end of the pin is not in the form of a smooth half round ball the firi...

Page 9: ... and lubricate with light oil and reassemble in reverse order of disassembly 5 Test for free movement of hammer release plate and actuator pin INFORMATION SPARE PARTS ACCESSORIES Go to the website below or for further information on your MICRO BLASTER Spare parts can be obtained from your MICRO BLASTER dealer Units needing repair will only be accepted after proper return authorizationhas been give...

Page 10: ...I Breaking Large Rocks with the Micro Blaster To break large rocks or to break off larger pieces of rock with the Micro Blaster a technique known as pre splits has allowed us to break up rocks weighing up to 10 tons The technique involves drilling a series of holes along a line defining where the rock should split This is similar to the technique used since Roman times using tools known as plugs a...

Page 11: ...veloped by the Micro Blaster cartridge Concrete partly because of its relative softness and the presence of the aggregate within which breaks up the fracture lines may require hole spacing as close as six inches Very hard fine grained rock such as granite or limestone may be effectively cracked with hole spacing as much as eighteen to twenty four inches When breaking rock with distinct layers hole...

Page 12: ...ve thinness should be drilled in the center of an exposed edge This will allow holes to be drilled to their proper depth 9 to 10 inches for single cartridge shots and 12 inches for 2 cartridge shots If no edge is exposed very shallow angled holes can be drilled and shot in the face of the concrete floors or walls Care should be taken to drill the holes so that the bottom of the hole is in the cent...

Page 13: ...LASTER PARTS A Cocking Knob B Release Plate Screw 2 C Release Plate D Nylon Washers 2 E Hammer F Hammer Guide G Spring H Bushing I Roll Pin J Firing Pin K Firing Pin Tube L Body M Sight Hole Shown without Lanyard and Safety Clip Assembly ...

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