Overload Protection; Carbon Brushes - CORE powertools CX25 C3H Manual De Uso

Overload protection

To protect the motor, operator and diamond drill, the machine is provided with a mechanical, electronic and thermal overload
safety system. Whenever the engine is switched off due to overload, it must be switched on again as soon as possible to cool the
engine. Then let the drill turn for a minimum of 1 minute without load.
1 – Electronic / Thermal
The LED indicates the load on the drill motor:
Green - continuously lit
Red - blinking
Red – continuously lit
2- Mechanical
If the drill bit suddenly gets stuck, the slip coupling is activated to disconnect the main axis from the engine. Make sure you
switch off the engine immediately and remove the drill from the hole. When the slip coupling is activated for a longer period,
the mechanical slip must be re-tuned by a certified expert.

Carbon brushes

Make sure to have carbon brushes inspected every 12 months and replaced if necessary by a certified expert.
Drilling with water cooling – Water connection
The drilling machine is equipped with a water tap, which includes a 'Gardena' connection. Make sure that the core drill is
sufficiently cooled and that the slurry is properly discharged. The maximum permitted water pressure is 3 bars. Always use
clean water to maximize the life span of the internal water seals. In case of leakage, the drilling machine has to be checked
IMMEDIATELY by a certified mechanical expert.
Tips
•
Diamond drills which are out of round cause extra burden to the bearings and the cogs.
•
Drill carefully and sensitively. Always avoid overloading.
•
Do not lift/move drill machine by the cable
•
If the switches, cable, plug or machine case is damaged, switch off the machine immediately and have it repaired by a
certified expert.
•
Switch on the machine only if the diamond drill can turn freely.
•
When changing the diamond drill, always use 2 spanners. Never use a hammer as this may damage the cogs.
Recycling
According to the European regulation 2002/96/EC, CORE Powertools is responsible to recycle old electric drill
motors.
You are therefore requested to return old CORE Powertools electric drill motors to your local reseller.
Guarantee
For the CX25, a guarantee period of 12 months applies from the date of purchase. Guarantee claims can only be accepted if
purchase invoice can be shown. The guarantee includes the repair of defects which have occurred and can be linked to material
or manufacturing faults.
Not covered by guarantee:
•
Defects or damages which are caused by incorrect use or connection.
•
Machine overload.
•
When maintenance has been carried out incorrectly or badly.
•
Information in the manual has not been properly followed.
•
The machine is used by unqualified persons.
•
If the machine is used for purposes for which it is unsuitable.
•
The machine is repaired using non original parts.
•
If the serial plate is damaged or deleted.
•
If defects are caused by fire, damp and/or transport.
CX25
– normal load
– overload
– overload – motor will be automatically switched off.
8
ENG
12/06