Hilti DD 250 Bedienungsanleitung Seite 48

The hole-starting mode
cannot be activated
Running time for the hole-
starting mode
Drilling performance
indicator: Contact pressure
is too low
Drilling performance
indicator: Optimum contact
pressure
Rated current limit has
been exceeded
Drilling performance
indicator: Contact pressure
is too high
Runtime counter
40 English
Printed: 22.08.2017 | Doc-Nr: PUB / 5245693 / 000 / 03 Printed: 22.08.2017 | Doc-Nr: PUB / 5245693 / 000 / 02
The diamond core drilling machine is drilling. The button for activating
hole-starting mode was pressed while the diamond core drilling machine
was under load, was being run-in after the carbon brushes had been
changed, or was in cool-down mode, or immediately after the diamond
core drilling machine had been operated for two minutes in hole-starting
mode. Activation is not possible.
Note
The indicator is automatically hidden after a few seconds.
The diamond core drilling machine is drilling. The hole-starting mode is
active. The indicator displays the time remaining until the diamond core
drilling machine automatically switches off.
Note
To protect the diamond core drilling machine, the hole-starting mode
automatically switches off after a maximum of two minutes.
The diamond core drilling machine is drilling. The hole-starting mode is not
active. The indicator helps ensure that the diamond core drilling machine is
being operated in the optimal range. Background color: Yellow.
The contact pressure is too low. Increase the contact pressure.
The diamond core drilling machine is drilling. The hole-starting mode is not
active. The indicator helps ensure that the diamond core drilling machine is
being operated in the optimal range. Background color: Green.
The contact pressure is at the optimum level.
The diamond core drilling machine is drilling. The hole-starting mode is
not active. It is indicated that rated current has exceeded the limit of 20 A.
Background color: Green.
The contact pressure is too high. Reduce the contact pressure.
The diamond core drilling machine is drilling. The hole-starting mode is not
active. The indicator helps ensure that the diamond core drilling machine is
being operated in the optimal range. Background color: Red.
The contact pressure is too high. Reduce the contact pressure.
The button for the runtime counter has been pressed. At the top, the indi-
cator displays the drilling time (the diamond core drilling machine is drilling)
and, at the bottom, the diamond core drilling machine's operating hours
(diamond core drilling machine is switched on) in hours, minutes and sec-
onds. Press the button for the runtime counter for a few seconds to reset
the drilling time total to zero.
Note
The indicator is automatically hidden after a few seconds or by pressing the
button again.