Troubleshooting
Error
Cause
Solution
Engine does not
work
Power off or plug loosed
Power up, plug in.
Carbon brush stuck and de-
tached from diverter
Re-install carbon brush.
Resetting PRCD failed
Push reset button or re-start the engine.
PRCD damaged
Change PRCD.
Slow drilling
Drill bit worn out
Change drill bit.
Feeding speed too low
Accelerate feeding speed.
Drill bit pasted by chips
Clean the drill bit, enhance the water pressure.
Rotate speed too high
Change to low speed.
Cutting on steel and slip
Reduce feeding speed, increase it after cutting
through the steel.
Too much chips in the hole
Clean the bottom of the hole, enhance water
pressure.
Less water supply or water
leakage
Check ball valve and water flow.
Drill bit becoming glazed
Sharpen the drill bit with a grinder.
Drill bit jam
tube and drill bit or drill bit
and hole wall jammed by
chips; stand not secured,
move location.
Switch off machine, turn the drill bit right and
left with a wrench or pull the drill bit out and
break up the core sample.
Cutting on steel and slip.
Narrow the gap.
Drill bit under
cutting
Spindle not straight
Repair or replace the spindle.
Drill bit not straight
Replace the drill bit.
Chips cannot be flushed out
of the hole
Enhance water pressure, pull out the drill bit,
clean the hole.
Water
cover
leaking
Seal of the frame worn out
Change the seal.
© by WilTec Wildanger Technik GmbH
Item 61500
Page 8
http://www.WilTec.de
http://www.aoyue.eu
02 2021
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