Technical Support

As the technological leader in the design of down hole hammers & bits, we feel its important to inform drillers of the most reliable ways to conduct down hole drilling. We provide various technical resources to assist drillers with properly maintaining their hammers & bits.

Hammer Component Solution Charts

Drilling through rock is a destructive process and from time to time drillers may encounter problems with their hammers. That is why we have formulated a “Solutions” chart for some of the more common technical support items involving down hole hammers. We are always happy to assist you with your technical questions. Please Contact Us with any questions that you may have.

If your hammer is not operating as expected, there are a few items you can easily check:

  1. Evaluate Compressor Output
    1. Properly adjust for temperature & altitude
    2. Conduct orifice test
    3. Check intake air filters
  2. Inspect Drill String
    1. Check for leaks throughout
    2. Evaluate pressure loss in hoses
  3. Calculate Proper Weight on Bit
    1. Adjust weight on bit
    2. Evaluate type of formation
  4. Inspect Blow Tube
    1. Measure for correct diamater and height
    2. Inspect for cracks and chips
  5. Investigate Hammer Choke
    1. Be sure the choke is seated properly
    2. Evaluate for proper choke selection

Backhead

Problem Cause Solution
Thread Galling Insufficient lubrication Use proper amount and type of thread lubricant
Thread Breakage Improper or damaged mating connection Inspect mating connection with API gauges
Corrosion Maintain proper lubrication
Operating with damaged threads See operator manual for repair instructions
OD Body Wear Abrasive formation Increase hole cleaning

Check Valve

Problem Cause Solution
Not Sealing Worn or cut seal surface Replace check valve
Memory loss in spring/broken spring Replace check valve spring
Melting Excessive temperatures Inject water when stuck in hole
Check compressor discharge temperature
Replace check valve

Feed Tube

Problem Cause Solution
Galling on OD Foreign material contamination Cover drill string when making connections
Filter injection water
Inspect compressor air filters
Clean drill strings
Misalignment Inspect feed tube seat in housing
Inspect housing seat in case
Inspect compression spring for misalignment or breakage
Insufficient lubrication Maintain proper lubrication
Severely worn piston OD or case ID Replace worn parts
Cracked or Broken Heat check damage Maintain proper lubrication
Keep out foreign material
Maintain proper alignment
Corrosion Maintain proper lubrication

Piston

Problem Cause Solution
Galling on Bearing Surfaces Foreign material contamination Cover drill string when making connections
Filter injection water
Inspect compressor filters
Clean drill string
Crack/Break on Bearing Surface Heat check damage Maintain proper lubrication
Keep out foreign material
Corrosion Maintain proper lubrication
Operating above recommended pressure Change choke

Case

Problem Cause Solution
Rapid Wear on OD Bits too small Use larger diameter bit
Replace bits more often
Abrasive formation Increase hole cleaning
Cracks on Chuck End Case worn below acceptable limit Change bits more often
Replace case
Cracks in Thread Area Corrosion Maintain proper thread lubrication
Disassemble and clean for storage
OD impact from blunt instrument for disassembly Use proper breakout tools
Heat distortion from disassembly Use proper breakout tools
Weld on OD Use proper breakout tools
Improper breakout tools Do not use pipe wrench
ID Wear Insufficient lubrication Maintain proper lubrication
Foreign material contamination Filter injection water
Inspect compressor filters
Cover drill string during connections
Clean drill string

Bit Retainer Rings

Problem Cause Solution
Broken Chuck collar worn below acceptable lengths Replace rings

Chuck

Problem Cause Solution
Rapid Wear on OD Bits too small Use larger diameter bit
Replace bits more often
Symmetrical Wear Pattern on OD Worn exhaust grooves on bit Replace bit
Cracked Threads Impact from blunt instrument for disassembly Use proper breakout tools
Crushed case threads Use proper breakout tools
Corrosion Maintain proper lubrication
Worn Drive Splines Excessive linear bit movement Maintain proper lubrication
ID Galling on Bottom Seal Foreign material contamination due to insufficient weight on bit Increase Weight on Bit
Cracked/Mushroomed Collar Insufficient weight on bit Increase Weight on Bit

Use the following form to request access to the product brochures. If you have any questions, please contact us and we will be happy to assist you.

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