Operating Instructions - Hilti DX450 Operating Instructions Manual

Safety precautions
Failure to follow these precautions may result in personal injury.
Only use Hilti cartridges or cartridges of equivalent quality
The use of cartridges of inferior quality in Hilti tools may lead to build-up of unburned
powder, which may explode and cause severe injuries to operators and bystanders. At a
minimum, cartridges must either:
a) Be confirmed by their supplier to have been successfully tested in accordance with
EU standard EN 16264
NOTE:
● All Hilti cartridges for powder-actuated tools have been tested successfully in
accordance with EN 16264.
● The tests defined in the EN 16264 standard are system tests carried out by the
certification authority using specific combinations of cartridges and tools.
The tool designation, the name of the certification authority and the system test
number are printed on the cartridge packaging.
or
b) Carry the CE conformity mark (mandatory in the EU as of July 2013).
See packaging sample at: www.hilti.com/dx-cartridges
Warnings
1. Never attempt to use the tool without first having received proper instruction on its use and
associated safety precautions. Contact your local Hilti sales representative for assistance.
2. Always use the tool strictly in accordance with the operating instructions. The operating
instructions should always be kept with the tool.
3. Never point the tool at yourself or any bystander.
4. Never press the muzzle of the tool against your hand or other part of your body.
5. The operator, and any other persons in the immediate vicinity, must wear suitable protec-
tive goggles, a helmet and ear protection while the tool is in use.
Safety precautions
6. Operate the tool only in well-ventilated working areas.
7. Use the stabiliser/guard whenever possible.
8. Never leave a loaded tool unattended. Always unload the tool before beginning cleaning and
servicing, before putting the tool away at the end of the day, before work breaks, and before
changing parts.
9. Always check that the tool is undamaged and fully functional before it is used. Never
attempt to use an incomplete or malfunctioning tool.
10. Keep the arms flexed when the tool is fired (do not straighten the arms). Stop working with
the tool if you feel unwell.
11. Avoid unfavorable body positions. Work from a secure stance and stay in balance at all
times.
12. Always hold the tool perpendicular to the working surface and material in which the fasten-
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Printed: 24.03.2014 | Doc-Nr: PUB / 5069832 / 000 / 03
er is to be driven.
13. To avoid the risk of injury, use only original Hilti fasteners, cartridges, accessories and
spare parts or those of equivalent quality.
14. Never attempt to pry a cartridge from magazine strip or tool.
15. If a cartridge misfires or fails to ignite, proceed as follows:
■ Keep the tool against the working surface for 30 seconds.
■ If the cartridge still fails to fire, withdraw the tool from the working surface, taking care
that it is not pointed towards your body or bystanders.
■ Cycle the tool so that the magazine strip is transported to the next cartridge. Use up the
remaining cartridges on the strip. Remove the used cartridge strip and dis pose of it in
such a way that it can be neither reused nor mis used.
16. Never attempt to drive a fastener in an existing hole, except where recommended by Hilti,
e. g. when using the DX-Kwik system.
17. Do not make fastenings in an explosive or flammable atmosphere, except when tool is
approved for such use.
18. Application recommendations must always be observed.
19. Before using the tool, make sure that no one is standing behind or below the point where
fasteners are to be driven.
20. Do not disassemble the tool while it is hot.
21. Never exceed the recommended maximum fastener driving rate (number of fastenings per
hour). The tool may otherwise overheat.
22. Always keep the tool and cartridges in a closed container in a safe place when not in use.
23. Unused cartridges and tools not presently in use must be stored in a place where they are
not exposed to humidity or excessive heat.
24. The tool should be transported and stored in a toolbox that can be locked or secured to pre-
vent use by unauthorized persons.
25. 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. Driving a fastener into
these materials may cause the fastener to break, shatter or to be driven right through.
26. Never attempt to drive fasteners into materials such as glass, marble, plastic, bronze,
brass, copper, rock, insulation material, hollow brick, ceramic brick, thin sheet metal (< 4
mm), cast iron or cellular concrete.
27. Check the tool and its accessories for any damage. Guards, safety devices and any slightly
worn parts must be checked carefully to ensure that they function faultlessly and as intend-
ed. Check that moving parts function correctly without sticking and that no parts are dam-
aged. All parts must be fitted correctly and fulfill all conditions necessary for correct opera-
tion 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 operating
instructions.
General notes
28. Never attempt to redrive the same fastener.
29. The applicable national regulations must always be observed, particularly those relating to
accident prevention.