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klr industries ltd.
KLR INDUSTRIES LIMITED
KLR INDUSTRIES LTD.
ISO 9001 CERTIFIED COMPANY

The galaxy of drilling, mining, construction, geological prospecting and material handling equipments.

KLR - The Leader in Drilling Technology
DRILLING QUALITY DEEPER !
KLR UNIVERSALí to manufacture
 

Trouble Shooting and Maintenance Hints

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:

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

Drill Rods are Checked for

Air leakage’s throughout
Pressure loss in hose

Weight on bit is checked for

Feed cylinder dropping
Proper rotation & feed

Control tube is checked for

Correct diameter and height
Chips at internal diameter
Burrs on outer diameter

Check valve is checked for

Proper seating

Level of rig is checked for

Level jacks leakage
Hydraulic pressure dropping at valve end

Hammer Parts Problems, Causes & Solutions Chart Coupler

Problem Cause Solution
Thread Locking Insufficient Lubrication
Use proper amount &type of thread lubricants
Damaged thread
Thread breakage Improper or damaged mating parts
Check the mating parts with api thread gauge
Threads rust
Maintain Proper Rust Preventive Oil
Operated with damaged threads
Check the mating parts
Outer Diameter Body
Wear Out
Abrasive formation
Increase hole cleaning
Avoid the wear out bits
Body cut Damaged threads
Remove the threads burrs

Hammer Case


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

Check Valve


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

Control Tube


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

Piston


Problem Cause Solution
OD Rubbing Insufficient lubrication
Use proper amount & type of lubricants.
To check compressor filter
To clean hammer case before assy.
To check control tube idTo check coupler id
To check drill rods id
Cap drill rods after use
Replace worn parts
Pin taper (digger)
Control tube seating in hammer case (tiger)
Foreign material contamination
Worn piston OD hammer case
ID Misalignment
Cracked or Broken Heavy friction
Foreign material keep out
Use proper amount &type of lubricants
Maintain proper alignment
Use proper amount of lubricant
Rust

Recommendations

Observe closely on hydraulic system elements and detect any leaks in the system, even though it may be very small, take appropriate action to correct them (simply by tightening the joints or reporting to the service engineer) Leaks on the radiator should be observed daily otherwise this will lead to engine failure.
 
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