EN
10
Troubleshooting
Problem
Cause
Solution
While core drilling the core drill has locked/jammed
in the material
Excess pressure on the tool at the point of
breakthrough in the material
Reduce pressure before breakthrough
Hammer mode is on
Ensure hammer mode is off to prevent damage to cutting
teeth and reduce chance of jamming
Core drill is not suitable for drill
Ensure the core drill max speed and diameter are compatible
with the drill
Large build-up of debris inside core drill while
operating
Regularly empty this build-up of debris to ensure safe
operation
Drill is uncomfortable to use due to vibration
Tool is being used for too long at one time
Take frequent breaks and read the sections in this manual
regarding vibration
Tool will not start
No power, fuse blown or circuit breaker tripped
Check and replace fuse if necessary or reset circuit breaker. In
the event the fuse blows after replacing or the circuit breaker
trips again immediately contact an authorised service centre
Power cable damaged
Contact an authorised service centre
On/Off Trigger switch faulty
Contact an authorised service centre
Faulty motor
Contact an authorised service centre
Slow rotation speed
Tool is overheating
Switch off the tool and let it cool down to room temperature.
Inspect and clean the ventilation slots
Slow rotation speed or no rotation plus possible visible
sparking from motor vents
Carbon brushes worn
Contact an authorised service centre to have the carbon
brushes replaced
Vibration or abnormal noise
Gearbox low on grease
Add or replace grease
Internal moving parts excessively worn
Contact an authorised service centre
Chisel mode not breaking material
Material too dense or thick
Drill not suitable for material or thickness
Chisel tip worn
Replace chisel
Chisel tip is rotating
Tool incorrectly set
Select roto-stop mode
Drilling performance poor with masonry
Hammer mode not selected
Enable hammer mode
Drill bit tip worn or damaged
Replace SDS Plus drill bit
Very dense material
Drilling speed will be slow in such material. A smaller pilot drill
can be drilled first to speed up the drilling process
Bits not fitting easily into SDS Plus Chuck (1)
Debris and dirt getting into chuck
Clean out by positioning chuck downwards and vacuuming
while operating the chuck as if to insert bits. Ensure dust guard
is used to prevent debris entering chuck
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