EN
Troubleshooting
Problem
No function when On/Off Switch (1) is operated.
Motor turns when On/Off Switch (1) is operated, but
the Grinding Wheel (8) does not rotate.
Tip of drill bit turns blue during sharpening.
One cutting edge is longer than the other, and the
point is not centred.
Unsatisfactory sharpening result.
8
Possible Cause
No power.
Defective On/Off Switch.
Motor defective.
Grinding Wheel fitted incorrectly.
Spindle or motor defective.
Overheating.
Uneven sharpening.
Grinding wheel worn.
Drill bit type or material unsuitable for sharpening
with this device.
Solution
Check power supply.
Have the On/Off Switch replaced by an authorised
Silverline service centre.
Return the tool to an authorised Silverline service
centre for repair.
Refer to 'Replacing the grinding wheel' .
Return the tool to an authorised Silverline service
centre for repair.
Reduce the amount of pressure and sharpening time.
Cool bit in water between sharpening. Before
continuing, make sure bit is completely dry.
To fix an unevenly sharpened bit, reinsert and
sharpen the shorter side for a little longer.
To prevent this from happening sharpen both sides
for the same amount of time, applying the same
amount of downward pressure whilst sharpening.
Replace grinding wheel.
Use alternative sharpening methods.