Before Use - Hilti UD 16 Operating Instructions Manual

(if applicable). This will prevent accidental restarting
when the electric power returns.
5.3.3 Electrical safety
a) 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 power tool
en
may become live, for example, when an electric cable
is damaged accidentally. This presents a serious risk
of electric shock.
b) Check the power tool's supply cord at regular
intervals and have it replaced by a qualified spe-
cialist if found to be damaged. If the machine's
supply cord is damaged it must be replaced with
a specially-prepared and approved supply cord
available from Hilti Customer Service. Check ex-
tension cords at regular intervals and replace
them if found to be damaged. Do not touch the
supply cord or extension cord if it is damaged
while working. Disconnect the mains plug from
the power outlet. Damaged supply cords or exten-
sion cords present a risk of electric shock.
c) Dirty or dusty power tools which have been used
frequently for work on conductive materials
should be checked at regular intervals at a Hilti
Service Center. Under unfavorable circumstances,
dampness or dust adhering to the surface of
the power tool, especially dust from conductive
materials, may present a risk of electric shock.

6 Before use

6.1 Fitting and adjusting the side handle 2
CAUTION
Remove the depth gauge from the side handle and
the insert tool from the chuck in order to avoid injury.
1. Disconnect the supply cord plug from the power
outlet.
2. Release the side handle clamping band by turning
the handle counterclockwise.
CAUTION With the UD 16 it is essential to ensure
3.
that the sleeve is fitted in the grip section of the
side handle.
Slip the side handle (clamping band) over the chuck
and push it onto the collar around the gearing sec-
tion as far as it will go.
22
d) When working outdoors with an electric tool
check to ensure that the tool is connected to the
electric supply by way of a ground fault circuit
interrupter (RCD) with a rating of max. 30 mA
(tripping current). Use of a ground fault circuit
interrupter reduces the risk of electric shock.
e) Use of a ground fault circuit interrupter (RCD
residual current device) with a maximum tripping
current of 30 mA is recommended.
5.3.4 Work area safety
a) Ensure that the workplace is well lit.
b) Ensure that the workplace is well ventilated. Ex-
posure to dust at a poorly ventilated workplace may
result in damage to the health.
5.3.5 Personal protective equipment
The user and any other persons in the vicinity must
wear suitable eye protection, a hard hat, ear protec-
tion, protective gloves and breathing protection while
the tool is in use.
4. CAUTION Check that the ribs on the clamping
band engage in the grooves in the collar around
the gearing section.
CAUTION If the side handle slips in the event of
the drill bit sticking while drilling, check that the
ribs on the side handle clamping band engage
securely with the collar on the power tool.Have
any damaged parts replaced. The side handle
will otherwise be unable to take up the torque
generated by the electric tool.
Pivot the side handle into the desired position (it
engages at a number of set positions).
5. Secure the side handle by turning the grip clockwise.
6.2 Use of extension cords and generators or
transformers
See section "Description / use of extension cords".