Description - Hilti DX E?72 Operating Instructions Manual

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Read the
operating
instructions
en
before use

2 Description

2.1 Use of the product as directed
The tool is designed for professional use in fastening applications where nails, threaded studs and composite fasteners
are driven into concrete, steel and sand-lime block masonry.
The tool is for hand-held use only.
Modification of the tool is not permissible.
The tool may not be used in an explosive or flammable atmosphere unless it has been approved for use under these
conditions.
To avoid the risk of injury use only genuine Hilti fasteners, cartridges, accessories and spare parts or those of
equivalent quality.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
The tool and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when used
not as directed.
The tool may be operated, serviced and repaired only by trained personnel. This personnel must be informed of any
special hazards that may be encountered.
As with all powder-actuated fastening tools, the tool, cartridges and fasteners form a technical unit. This means that
trouble-free fastening with this system can be assured only if the Hilti fasteners and cartridges specially manufactured
for it, or products of equivalent quality, are used. The fastening and application recommendations given by Hilti apply
only when these conditions are observed.
For optimum results and maximum reliability we recommend use of Hilti cartridges or products of equivalent quality.
The following also applies in EU and EFTA countries: For maximum safety with this tool, the cartridges must comply
with the requirements of the applicable C.I.P. tests (source: Comprehensive edition of adopted C.I.P. decisions, Liège,
Belgium, 2005) as well as the cartridge tests described at www.hilti.com/cartridgetest.
The tool features a 5-way safety system for the safety of the user and all bystanders.
2.2 Piston principle
The energy from the propellant charge is transferred to a piston, the accelerated mass of which drives the fastener into
the base material. Due to use of this piston principle, the tool is classified as a "low velocity tool". As approximately
95% of the kinetic energy is absorbed by the piston, the fastener is driven into the base material in a controlled fashion
at much reduced velocity (less than 100 m/s). The driving process ends when the piston is stopped at the end of its
travel. This makes dangerous through-shots virtually impossible when the tool is used correctly.
2.3 Drop-firing safety device
The drop-firing safety device is the result of coupling the firing mechanism with the cocking movement. This prevents
the tool from firing when dropped onto a hard surface, no matter at which angle the impact occurs.
2.4 Trigger safety device
The trigger safety device prevents the tool firing when only the trigger is pulled. The tool must be pressed against a
firm surface before a fastener can be released.
18
Location of identification data on the tool
The type designation and serial number can be found on
the type identification plate on the tool. 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.: