Hilti DX 351-CT Operating Instructions Manual page 22

c) Never point the tool toward yourself or other per-
sons.
d) Never press the nosepiece of the tool against your
hand or against any other part of your body (or
other person's hand or part of their body).
e) Keep other persons, especially children, away
from the area in which the work is being carried
out.
en
f) Keep the arms slightly bent while operating the
tool (do not straighten the arms). Stop using the
tool immediately if you experience pain or dis-
comfort.
1.1.4 Use and care of powder-actuated fastening
tools
a) Use the right tool for the job. Do not use the tool
for purposes for which it was not intended. Use it
only as directed and when in faultless condition.
b) Always hold the tool securely with both hands on
the grip provided. Do not hold the exposed metal
pole of the extensions. This may cause the tool to
malfunction.
c) Press the tool against the working surface at right
angles.
d) Never leave a loaded tool unattended.
e) Always unload the tool (remove cartridges and
fasteners) before cleaning, before maintenance,
before work breaks and before storing the tool.
f) Check the tool and its accessories for any dam-
age. Guards, safety devices and any slightly worn
parts must be checked carefully to ensure that
they function faultlessly and as intended. Check
that moving parts function correctly without stick-
ing and that no parts are damaged. All parts must
be fitted correctly and fulfill all conditions neces-
sary for correct operation of the tool. Damaged
guards, safety devices and other parts must be
repaired or replaced properly at a Hilti service
center unless otherwise indicated in the operat-
ing instructions.
g) Always hold the tool securely and at right angles
to the working surface when driving in fasteners.
This will help to prevent fasteners being deflected
by the working surface.
h) Never use a fastener twice.
i) Never redrive a fastener. This may cause the
fastener to break and the tool may jam.
Never drive fasteners into existing holes unless
j)
this is recommended by Hilti.
k) Always observe the application guidelines, in-
cluding the minimum thickness of the base ma-
terial, fastener spacing and the minimum edge
distances.
l) Use the spall guard when the application permits.
m) Never pull the fastener guide back by hand as
this could, under certain circumstances, make
the tool ready to fire. This could cause a fastener
or the piston to be driven into a part of the body.
n) Do not dismantle the tool while it is hot.
o) The applicable national regulations, especially
those concerning accident prevention, must be
observed.
16
Printed: 17.04.2014 | Doc-Nr: PUB / 5069829 / 000 / 03
1.1.5 Work area safety
a) Ensure that the workplace is well lit.
b) Operate the tool only in well-ventilated working
areas.
c) Do not attempt to drive fasteners into unsuitable
materials. Materials that are too hard, e.g. welded
steel and cast iron. Materials that are too soft, e.g.
wood and drywall panel (gypsum board). Materials
that are too brittle, e.g. glass and ceramic tiles. Other
unsuitable materials include: Glass, marble, plastic,
bronze, brass, copper, rock, insulating material, hol-
low brick, ceramic tiles, thin sheet metal (< 4 mm)
and cellular concrete. Driving a fastener into these
materials may cause the fastener to break, shatter or
to be driven right through.
d) Do not use the tool on surfaces with a fire pro-
tection coating thicker than 12 mm (½"). Using the
tool on surfaces with a fire protection coating may
cause the tool to malfunction.
e) Before driving fasteners, check that no one is
present immediately behind the working surface.
f) Keep the workplace tidy. Objects which could
cause injury should be removed from the work-
ing area. Untidiness at the workplace can lead to
accidents.
g) Keep the grip section and grip clean, dry and free
from oil and grease.
h) Wear non-skid shoes.
i) Take the influences of the surrounding area into
account. Do not expose the tool to rain or snow.
Do not use the tool where there is a risk of fire or
explosion.
1.1.6 Mechanical safety precautions
a) Select the correct fastener guide and fastener
combination for the job on hand. Failure to use
the correct combination of these items may result
in injury or cause damage to the tool and/or lead to
unsatisfactory fastening quality.
b) Use only fasteners of a type approved for use with
the tool.
c) Do not use a worn or damaged piston or piston
brake. Do not tamper with or modify the piston.
1.1.7 Thermal safety precautions
a) If the tool has overheated, allow it to cool down.