GMC GID850 Mode D'emploi page 9

Troubleshooting
Problem
Drill is uncomfortable to use due to vibration
Tool will not start
Slow rotation speed
Slow rotation speed or no rotation, plus possible visible sparking from
the motor vents
Drilling performance poor with masonry
Possible cause
Tool is being used for too long
No power, fuse blown, or circuit breaker tripped
Power cable damaged
On/Off Trigger faulty
Faulty motor
Tool is overheating
Carbon brushes worn
Internal moving parts excessively worn
Hammer drill mode not selected
Drill bit tip worn or damaged
Very dense material
9
Solution
Take frequent breaks and read the sections in this manual regarding
vibration
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 GMC service centre
Contact an authorised GMC service centre
Contact an authorised GMC service centre
Contact an authorised GMC service centre
Switch 'off' the tool and allow it to cool down to room temperature.
Inspect and clean the ventilation slots
Contact an authorised service centre to have the carbon brushes
replaced
Contact an authorised GMC service centre
Enable 'Hammer drill mode'
Replace drill bit
Drilling speed will be slow in such material. A smaller pilot drill can be
drilled first to speed up the drilling process
GB