Hilti DD 250 Bedienungsanleitung Seite 41

Service indicator
Hole-starting mode
Runtime counter
Drilling performance indicator: Increase contact pressure
Drilling performance indicator: Reduce contact pressure
Protective earth
Rated speed under no load
1.3 Information notices
On the drill stand, base plate or diamond core drilling machine
Printed: 22.08.2017 | Doc-Nr: PUB / 5245693 / 000 / 03 Printed: 22.08.2017 | Doc-Nr: PUB / 5245693 / 000 / 02
On the vacuum base plate
Upper half of the image: An additional means of securing the drill stand
must be employed when the machine is used for horizontal drilling with the
vacuum securing method.
Lower half of the image: Use of the vacuum securing method without
an additional means of securing is prohibited for drilling in an upward
direction.
On the diamond core drilling machine
Use of the water collection system in conjunction with a wet-type industrial
vacuum cleaner is a mandatory requirement for working overhead.
English 33