TROUBLE SHOOTING

Drilling rock is a very difficult process and during drilling some problems with hammers might be faced. In order to avoid such problem the following precautions are taken


  1. Compressor Output is Checked for.
    Temperature & altitude are adjusted, Air pressure is checked with pressure gauge, Air filters are checked, Minimum Level of rock oil is maintained.
  2. Drill Rods are Checked for.
    Air leakage's throughout, Pressure loss in hose .
  3. Weight on bit is checked for.
    Feed cylinder dropping, Proper rotation & feed.
  4. Control tube is checked for
    Correct diameter and height, Chips at internal diameter, Burrs on outer diameter
  5. Check valve is checked for.
    Proper seating.
  6. Level of rig is checked for.
    Level jacks leakage, Hydraulic pressure dropping at valve end.
Problem Cause Solution
Thread Locking. Insufficient Lubrication. 1- Use proper amount &type of thread lubricant.
2- Damaged thread.
Thread breakage. 1- Improper or damaged mating parts.
2- Threads rust.
3- Operated with damaged threads.
1- Check the mating parts with api thread gauge.
2- Maintain Proper Rust Preventive Oil.
3- Check the mating parts.
Outer Diameter Body Wear Out. Abrasive formation. 1- Increase hole cleaning.
2- Avoid the wear out bits.
Body cut. Damaged threads. Remove the threads burrs.

Hammer Case

Problem Cause Solution
Thread Locking. Insufficient Lubrication. 1- Use proper amount &type of thread lubricant.
Thread breakage/Crack. 1- Improper or damaged mating parts Denting at hammer case.
2- Threads rust.
3- Operated with damaged threads.
1- Check the mating parts with api thread gauge.
2- Open proper breakout tools.br/> 3- Do not open with heat & hit.
4- Maintain proper rust prevent oil.
5- Check the mating parts.
Outer Diameter Body Wear Out. Abrasive formation. 1- Increase hole cleaning.
2- Avoid the wear out bits
Body cut. Damaged threads. 1-Remove the threads burrs.
2-To check control tube seating face perpendicular to honing bore in hammer case.
Crack at Front Chuck End. Case worn below acceptable limit. 1-Use new bit.
2-Replace hammer case.
Id Wear Out. 1-Insufficient lubrication.
2-Foreign material contamination.
1-Use proper amount & type of lubricants.
2-To check compressor filter.
3-To clean hammer case before assy.
4-To check control tube id.
5-To check coupler id.
6- To check drill rods id.
7- Cap drill rods after use.

Check Value

Problem Cause Solution
Not sealing. Worn or cut seal surface (Spring tension may less). 1- Replace check valve.
2- Replace spring.
Melting. 1- Heavy temperature.
1- Check compressor out put temperature.
2- Use proper amount & type of lubricants.

Control Tube

Problem Cause Solution
Od Rubbing. 1-Insufficient lubrication.
2-Foreign material contamination.
3-Work piston od hammer case. ID Misalignment.
1- Use proper amount & type of lubricants.
2- To check compressor filter.
3- To clean hammer case before assy.
4- To check control tube id.
5- To check coupler id.
6- To check drill rods id.
7- Cap drill rods after use.
8- Replace worn partsPin taper (digger).
9- Control tube seating in hammer case (tiger).
Cracked or Broken. 1- Heavy friction.
2- Rust
1- Foreign material keep out.
2- Use proper amount & Type of lubricants.
3- Maintain proper alignment.
4-Use proper amount & type of lubricants.

Piston

Problem Cause Solution
Od Rubbing. 1-Insufficient lubrication.
2-Foreign material contamination.
3-Work piston od hammer case. ID Misalignment.
1- Use proper amount & type of lubricants.
2- To check compressor filter.
3- To clean hammer case before assy.
4- To check control tube id.
5- To check coupler id.
6- To check drill rods id.
7- Cap drill rods after use.
8- Replace worn partsPin taper (digger).
9- Control tube seating in hammer case (tiger).
Cracked or Broken. 1- Heavy friction.
2- Rust
1- Foreign material keep out.
2- Use proper amount & Type of lubricants.
3- Maintain proper alignment.
4-Use proper amount & type of lubricants.



Quick Links

DTH Hammer Suppliers in India
Button Bit Manufucturers in India
DTH Hammer Manufucturer in India


Button Bit Suppliers in India
DTH Hammer Exporters
Button Bit Exporters


Digger Type Hammer Exporters
DTH Button Bits Exporters


DTH Hammer Dealers in India
Button Bit Manufucturers in India
Button Bits Dealers in India

GET IN TOUCH

Dharani DTH Hammers are specifically designed for dependable rock drilling performance of quarry,mining,construction and water well projects.Dharani Hammers are have been designed to give maximum performance and competitive prices.

 

© 2014 All rights Reserved | Dharani Rock Drills