Symptoms |
Possible cause |
Remedy |
Rate of drilling progress decreases. |
Maximum drilling depth reached. |
Remove the core and use a core bit extension. |
Diamond core bit is defective. |
Check the core bit for damage and replace it if necessary. |
Gearing is defective. |
Have the machine repaired. |
Diamond core bit segments polished. |
Sharpen the core bit on a sharpening plate with running water. |
Diamond core bit segments polished. |
The wrong core bit specification has been used. Send emails to us and seek advice from us. |
The slip clutch releases prematurely or slips permanently. |
Have it checked by a trained electrical specialist and adjust or replace the clutch if necessary. |
The motor cuts out. |
The machine stops running. |
Reduce the pressure applied. |
Electrics is defective. |
Have the machine repaired. |
Electrics power failure. |
Check the plug connections, electric supply and mains fuse. |
Carbon brushes is worn. |
Replace the carbon brush. |
Water leakage at the water valve or gearhousing. |
Water seal is defective. |
Replace the water seal. |
Water pressure is too high. |
Reduce the water pressure. |
The diamond core bitcannot be fitted intothe machine spindle. |
Machine spindle connection end is dirty or damaged. |
Clean the spindle or replace it if necessary. |
Water leakage at the spindle during operation. |
Spindle is dirty. |
Clean the connection end / spindle. |
Core bit is not screwed securely into the spindle. |
Tighten it securely. |
Water seal or core bit connection end is detective. |
Check the seal and replace it if necessary. |