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1.
General warnings
1.1 Do not attempt to use the hydraulic drilling system without having received the
appropriate training from an authorised Hilti specialist.
1.2 Always use the hydraulic drilling system in accordance with the operating instructions. The
operating instructions must always be kept at hand. The instructions concerning anchoring
and securing the system must be observed.
1.3 Approval must be obtained from the site engineer or other authorised person before begin-
ning drilling. Drilling and cutting through steel reinforcement can negatively affect the struc-
tural stability of a building. Ensure that there are no concealed gas, water, electricity or oth-
er supply lines in the area in which drilling work is to be carried out.
1.4 The area in front of, behind or below where drilling work is to be carried out must be secured
in such a way that persons cannot be injured or equipment damaged by falling blocks of
concrete. If necessary, cores should be secured to prevent them from falling.
2.
Warnings – fastening, setting up and operating the DD-750 HY
2.1 Fastening the baseplates for the DD-750 HY:
WARNING
Use an anchor suitable for the material on which you are working and obser-
ve the anchor manufacturer's instructions.
NOTE
Hilti M16 metal expansion anchors are usually suitable for fastening diamond core drilling
equipment to uncracked concrete. Under certain conditions it may be necessary to use an
alternative fastening method. Please contact Hilti Technical Service if you have any questi-
ons about secure fastening.
2.2 Prevent the carriage from sliding down the column:
The DD-CA-L carriage is equipped with a feed movement locking device. When setting up
the equipment or when removing a core, the DD-CP-L clamping piece should be mounted
on the D-R..L column as an additional security measure to prevent the carriage from sliding
down the column unintentionally.
2.3 The D-LP / DD- 750 HY core drilling system must not be operated in environments where
there is a risk of explosion.
3.
General safety precautions
3.1 Modules and parts from other Hilti diamond core drilling systems may also be
used. Please refer to their separate operating instructions for information on their
use and operation.
3.2 Keep the working area tidy. Untidiness and bad organisation of the working area can lead
to accidents. Failure to observe warnings, safety precautions or the operating instructions
may cause damage to the equipment or present a risk of personal accident to the operator.
3.3 The influences of the environment in which you are working must be taken into account. Do
not position the equipment where the hydraulic unit will become wet or where the electric
extension cable will lie in water. Ensure that the area is well lit. Do not use the equipment in
the vicinity of inflammable liquids and gases. Make provision for water removal.
3.4 Keep children away from the working area. Keep other people away from the working area
when the equipment is in operation. Tools, extension cables or hydraulic hoses should not
be tampered with by other people while the equipment is in operation.
3.5 Motor units, other parts and tools should be kept in a dry, secure place out of reach of chil-
dren when not in use.
Printed: 22.10.2015 | Doc-Nr: PUB / 5128296 / 000 / 02
Safety instructions
21
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