DeWalt DCD150 Instructions D’origine page 31

Troubleshooting
If your core drill seems not to operate properly, follow the instructions below. If this does not solve the problem, please contact your
repair agent.
Problem
core bit does not cut
Evacuated water too clear and too
fluid
Dust accumulating in core bit
Rotating speed not appropriate
segments wear too fast
core bit stuck in handheld use
Water leaks at the connection point
during operation
Probable cause
Material too hard for core bit.
Segments and core are burnt.
Segments look glazed and polished.
Water flow slows down the cutting
action and prevents the diamond
segments to self‑sharpen.
Accumulating dust slows down the
drilling speed.
Speed rating is not set to the
correct option.
Quick connection point is not
completely secured.
Quick connection point is damaged/
cracked.
Solution
Choose a more appropriate core bit
(with softer segments).
Apply wet drilling when appropriate.
Release pressure.
Drill in abrasive material to re‑expose
diamond segments.
Reduce water flow.
Use the appropriate dust extraction device.
Disengage drill bit regularly to
evacuate cuttings.
Refer to Technical Data for proper
speed ratings.
Choose a more appropriate core bit
(with harder segments).
Reduce the pressure applied on the core bit.
1. Remove the battery from the drill.
2. Use wrenches to release the spindle from
the core bit.
3. Turn the spindle as long as it is
disconnected from the core bit.
4. Place the core drill and the battery in a
secure dry place.
5. Remove the core bit from hole.
1. Remove the battery from the drill.
2. Disconnect the quick connector from the
water hose.
3. Check the quick connector for
any damages.
4. Insert the quick connection back onto
the hose, ensuring it is fully seated to the
connection point.
EnGLIsh
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