On the core drilling machine
At temperatures below 4°C the cooling circuit must be
en
drained as described before pauses of an hour or longer
between use.
On the core drilling machine
Operate the system only with a properly functioning
PRCD.
2 Description
2.1 Use of the product as directed
The core drilling machine together with the DD-HD 30 drill stand and additional accessories recommended by Hilti
(e.g. the DD AF-CA drilling feed unit) forms an automatic stand-mounted drilling rig suitable for wet core drilling in
reinforced mineral materials. The core drilling machine is electrically powered and is designed for drilling through holes
and blind holes using diamond core bits (it is not suitable for hand-held operation).
The core drilling machine must be mounted on the drill stand and care must be taken to ensure that the drill stand is
securely fastened to the base material using an anchor or vacuum base plate.
The machine is designed for professional use and may be operated, serviced and maintained only by trained,
authorized personnel. This personnel must be informed of any special hazards that may be encountered. The core
drilling machine, drill stand, accessories and core bits may present hazards when by used by untrained personnel,
when handled incorrectly or when used not as directed.
Observe the national health and safety requirements.
Use of a water collection system connected to a wet/dry industrial vacuum cleaner is recommended for drilling in an
upward direction.
An additional means of securing the drill stand must be employed when the machine is secured with the vacuum base
plate (accessory) for horizontal drilling.
Do not use a hammer or other heavy object when making adjustments to the base plate.
22
On the vacuum base plate
VACUUM
VACUUM
Upper: An additional means of securing the drill stand
must be employed when the machine is used for hori-
zontal drilling with the vacuum securing method.
Lower: Use of the vacuum securing method for overhead
drilling with the drill stand is not permissible.
Location of identification data on the machine
The type designation and serial number can be found on
the type identification plate on the machine. Make a note
of this data in your operating instructions and always refer
to it when making an enquiry to your Hilti representative
or service department.
Type:
Generation: 01
Serial no.: