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3) Lock in place: Once the desired angle is achieved, tighten the locking screw nut to secure the
setting. Make sure the rod remains stable and motionless in the new position.
Important Note: When tightening the screws, be careful not to overtighten them. Over-tightening
may deform the square bar, making future adjustments difficult or even damage the mechanism.
3.6.
Troubleshooting
Error
Power off, or plug loosed
Carbon brush get stuck, and
The Motor
detach from diverter
does not work
Reset PRCD failed
PRCD get damaged
Drill bit worn out
Feeding speed is too low
Drill bit was pasted by chips
Rotate speed is too high
Cutting on steel and slip
Drill Slowly
Too much chips in the hole
Less water supply or water
leakage
Drill bit becoming glazed
The tube and drill bit or the drill
bit and hole wall was jammed by
chips The stand is not secured,
Drill bit Jam
move location
Rotate speed is too high
Cutting on steel and slip
Spindle is not straight
Drill bit under
cutting
Drill bit is not straight
EN
Cause
Power up, plug in
Re-install carbon brush
Push reset button or re-start the motor
Chang PRCD
Change drill bit
Accelerate feeding speed
Clean the drill bit, enhance water pressure
Change to low speed
Reduce feeding speed, after cutting through the
steel, increase it
Clean the bottom of hole and enhance water
pressure
Check the ball valve and the water flow
Re-sharp the drill bit with grinder
Switch off the machine, turn the drill bit right and
left with wrench or pull the drill bit out and break
up the core sample
Re-fix the stand
Narrow the gap
Repair or replace the spindle
Replace the drill bit
Solution
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