*2204402*
2204402
English
25
9.2
Diamond core drilling machine is running
Malfunction
Possible cause
Action to be taken
Restart interlock
The motor has overheated. The
cooling down process is complete.
▶
Switch the diamond core drilling
machine off and then on again.
Supply network fault – the power
supply has been interrupted.
▶
Check whether other power
consumers are disrupting the
power supply from the network
or generator.
▶
Check the length of the exten-
sion cord used.
▶
Switch the diamond core drilling
machine off and then on again.
Water in the motor.
▶
Allow the diamond core drilling
machine to dry out completely
in a warm, dry place.
Maximum running time with hole-
starting mode activated exceeded.
▶
Switch the diamond core drilling
machine off and then on again.
The diamond core drilling machine
has been overloaded
▶
Switch the diamond core drilling
machine off and then on again.
▶
Do not overload the diamond
core drilling machine (e.g. by
repeated disengagement of the
slip clutch).
Overheating
The motor has overheated. The
diamond core drilling machine is
running in cooling mode.
▶
Wait a few minutes until the
motor has cooled down or
allow the diamond core drilling
machine to run under no load
in order to speed up the
cooling process. When normal
temperature is reached the
indication in the display goes
out and the diamond core
drilling machine activates the
restart interlock. Switch the
diamond core drilling machine
off and then on again.
Remaining running time un-
til the carbon brushes are
changed.
The carbon brush wear limit has
almost been reached. The diamond
core drilling machine will continue
to run for a few hours until it shuts
down automatically.
▶
Have the carbon brushes
replaced at the next opportunity.
Running in after carbon
brushes are changed.
The carbon brushes have been
changed and must be run in.
▶
Run in the carbon brushes by
letting the machine run under
no load for at least 1 minute
without interruption.
Unable to activate
hole-starting mode
Diamond core drilling machine is
drilling.
▶
Turn the hand wheel until the
core bit is no longer in contact
with the base material.
The motor has overheated. The
diamond core drilling machine is
running in cooling mode.
▶
Complete the cooling process.
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