Setting Up - Hilti DD AF-CA Manual De Instrucciones

at an authorized service center unless otherwise
indicated in the operating instructions.
h) Avoid skin contact with drilling slurry.
i) Wear a protective mask during work that gener-
ates dust, e.g. dry drilling. Connect a dust removal
system. Drilling into materials hazardous to the
health (e.g. asbestos) is not permissible.
j) Dust from material such as paint containing lead,
en
some wood species, minerals and metal may be
harmful. Contact with or inhalation of the dust may
cause allergic reactions and/or respiratory diseases
to the operator or bystanders. Certain kinds of dust
are classified as carcinogenic such as oak and beech
dust especially in conjunction with additives for wood
conditioning (chromate, wood preservative). Material
containing asbestos must only be treated by special-
ists. Where the use of a dust extraction device is
possible it shall be used. To achieve a high level
of dust collection, use a suitable vacuum cleaner
of the type recommended by Hilti for wood dust
and/or mineral dust together with this tool. Ensure
that the workplace is well ventilated. The use of a
dust mask of filter class P2 is recommended. Fol-
low national requirements for the materials you
want to work with.
4.2.2 Mechanical
a) Follow the instructions concerning care and main-
tenance.
b) Follow the instructions concerning lubrication
and changing core bits.
c) Check that the core bits used are compatible with
the chuck system and that they are secured in the
chuck correctly.
d) Check that the drilling feed unit is correctly and
securely mounted on the drill stand.
e) Do not touch rotating parts.

5 Setting up

5.1 Mounting the drilling feed unit on the carriage
on the drill stand 3
CAUTION
While setting up the drilling feed unit, the core drilling
machine must be disconnected from the electric supply.
CAUTION
The supply voltage must comply with the specification
given on the type identification plate. The drilling feed
unit may be connected only to the core drilling machines
recommended by Hilti for operation in this way.
DANGER
Make sure that the drilling feed unit is correctly mounted
and secured on the drill stand.
NOTE
Check that the carriage is of the type suitable for use with
an automatic feed unit: At the position of the mounting
18
Check that all the clamping screws are correctly
f)
tightened.
g) Make sure that the cover with built-in end stop
is always fitted to the drill stand. The safety-
relevant end-stop function becomes inoperative
if this component is not fitted.
4.2.3 Electrical
a) Check the appliance's supply cord at regular in-
tervals and have it replaced at a Hilti service
center if damage is found. Check extension cords
at regular intervals and replace them if damage is
found.
b) Do not touch the supply cord or extension cord if
they are damaged while working. Disconnect the
supply cord plug from the power outlet.
c) In case of an interruption in the electric supply:
Switch off the machine and/or appliance and un-
plug the supply cord.
d) Avoid using extension cords with multiple power
outlets and the simultaneous use of several ap-
pliances connected to one extension cord.
e) Never operate the appliance when it is dirty or
wet. Dust (especially dust from conductive ma-
terials) or dampness adhering to the surface of
the appliance may, under unfavorable conditions,
lead to electric shock. Dirty or dusty appliances
should thus be checked at a Hilti service center
at regular intervals, especially if used frequently
for working on conductive materials.
f) Before beginning work, check the working area
(e.g. using a metal detector) to ensure that no
concealed electric cables or gas and water pipes
are present. External metal parts of the appliance
may become live, for example, when an electric cable
is damaged accidentally. This presents a serious risk
of electric shock.
screw there must be a hole that allows the mounting
screw to be pushed through.
Mount the drilling feed unit as follows:
1. Use the hand wheel to position the carriage so that
the drilling feed unit can be mounted conveniently.
2. Lock the carriage.
3. Bring the drilling feed unit into position on the car-
riage and hold it there.
4. If the drilling feed unit does not fit evenly against the
drill stand, unlock the carriage and turn the hand
wheel slightly until the drilling feed unit makes full
contact with the carriage.
5. Push the mounting screw through the carriage into
the core drilling machine and screw it in by hand.
6. Secure the drilling feed unit to the drill stand by
tightening the mounting screw moderately using the
hand wheel.
7. Remove the hand wheel.