Hilti DX 76 User manual
202947
Operating instructions en
Mode d’emploi fr
Manual de instrucciones es
Manual de instruções pt
DX 76
Printed: 17.04.2014 | Doc-Nr: PUB / 5126191 / 000 / 02
DX76
4321
MX 76
2
114 13
3 4 5 6 7
9
8
12 1110
18
17
16
15
1
22
21
DX76
4321
19 20
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1234
DX 76
DX 76
MX76
MX76
1
1234
DX 76
DX 76
MX76
MX76
1
MX76
MX76
1234
DX 76DX 76
12
3
2
4 5
Standard
steel
S 235, S275
E 36, ST 37,
340-470 N/mm2
4
3
4
3
High-strength
steel
S 355, S275
E 42, ST 52,
490-630 N/mm2
Base material thickness (mm)
4
3
4
3
20
15
10
8
6
X-ENP
red
black
blue
red
3
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DX76
DX76
4321
MX76
MX76
DX76
DX76
4321
2
1/4
3
max.
min.
max.
min.
MX76
MX76
DX 76
DX 76
2
1
MX76
MX 76
MX 76
13
2
DX76
4321
MX76
MX76
MX76
42
1
3
DX76
4321
MX76
MX76
MX76
MX76
1
2
45
6
h
hh
hh
a)
c)
b)
d)
X-ENP2K-20 X-ENP-19
7
8 9
10 11
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5
2
4
1
3
2
4
3
1
DX76
DX76
4321
5
5
6
7
16 17
19
DX76
DX76
4321
DX76
4321
MX76
MX76
2
13
4
18
2
1
1
3
2
1234
DX 76DX 76
4
2
3
1
DX 76
DX 76
6
4
5
1
3
2
12 13
14 15
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DX76
DX76
4321
8
9
DX 76
DX 76
4321
DX76
4321
MX76
MX76
14
12
10
11
13
20 21
Printed: 17.04.2014 | Doc-Nr: PUB / 5126191 / 000 / 02
ORIGINAL OPERATING INSTRUCTIONS
DX 76 powder-actuated fastening tool
It is essential that the operating instructions
are read before the tool is operated for the
first time.
Always keep these operating instructions to-
gether with the tool.
Ensure that the operating instructions are
with the tool when it is given to other persons.
Contents Page
1 Safety instructions 1
2 General information 3
3Description 4
4 Accessories, consumables 6
5 Technical data 6
6Beforeuse 7
7 Operation 7
8 Care and maintenance 10
9 Troubleshooting 12
10 Disposal 15
11 Manufacturer’s warranty - tools 15
12 EC declaration of conformity (original) 16
13 Confirmation of CIP testing 16
14 Health and safety of the operator 16
1These numbers refer to the corresponding illustra-
tions. The illustrations can be found on the fold-out cover
pages. Keep these pages open while studying the oper-
ating instructions.
In these operating instructions, the designation “the tool”
always refers to the DX 76 powder-actuated fastening
tool.
Parts and operating controls 1
DX 76 tool
@MX 76 nail magazine
;Contact pin
=Protective cap
%Cycling grip
&Cartridge strip guideway
(Loading status control window
)Power regulation wheel
+Power regulation indicator
§Padded end cap
/Tool casing
:Grip pad
·Trigger
$Piston guide release lever
£Sliding sleeve
|Magazine body
¡Fastener magazine spall guard
QFastener stop
WVentilation slots
EX‑76‑F‑15 fastener guide
RTool spall guard
Wearing parts
TPiston
ZPiston stopper
1 Safety instructions
1.1 Basic information concerning safety
In addition to the information relevant to safety given
in each of the sections of these operating instructions,
the following points must be strictly observed at all
times.
1.1.1 Using cartridges
Use only Hilti cartridges or cartridges of equivalent
quality.
Use of cartridges of inferior quality in Hilti tools may lead
to a build-up of unburned powder, which may explode
and cause sever injuries to operators and bystanders.
Cartridges must fulfill one of the following minimum re-
quirements:
a) The applicable manufacturer must be able to verify
successful testing in accordance with the EU stan-
dard EN 16264 or
b) The cartridges must bear the CE conformity mark
(mandatory in the EU as of July 2013).
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 designa-
tion, the name of the certification authority and the system
test number are printed on the cartridge packaging.
Please refer to the packaging example at:
www.hilti.com/dx-cartridges
1.1.2 Personal safety
a) Stay alert, watch what you are doing and use
common sense when operating a direct fastening
tool. Do not use tool while tired or under the influ-
ence of drugs, alcohol or medication. Amomentof
inattention while operating tools may result in serious
personal injury.
en
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Printed: 17.04.2014 | Doc-Nr: PUB / 5126191 / 000 / 02
b) Avoid unfavorable body positions. Make sure you
work from a safe stance and stay in balance at all
times.
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.
f) Keep the arms slightly bent while operating the
tool (do not straighten the arms).
1.1.3 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) Press the tool against the working surface at right
angles.
c) Never leave a loaded tool unattended.
d) Always unload the tool (remove cartridges and
fasteners) before cleaning, before maintenance,
before work breaks and before storing the tool.
e) When not in use, tools must be unloaded and
stored in a dry place, locked up or out of reach of
children.
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) Pull the trigger only when the tool is fully pressed
against the working surface at right angles.
h) 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.
i) Never redrive a fastener. This may cause the fas-
tener to break and the tool may jam.
j) Never drive fasteners into existing holes unless
this is recommended by Hilti.
k) Always observe the application guidelines.
l) Use the spall guard when the application permits.
m) Never pull the magazine or fastener guide back by
hand as this could, under certain circumstances,
make the tool ready to fire. This could cause a
fastener to be driven into a part of the body.
1.1.4 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.
Driving a fastener into these materials may cause
the fastener to break, shatter or to be driven right
through.
d) 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 (< 3 mm), cast
iron or cellular concrete.
e) Before driving fasteners, check that no one is
present immediately behind or below 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 grips dry, clean 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
anddonotuseitindamporwetconditions.Do
not use the tool where there is a risk of fire or
explosion.
1.1.5 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) Never fill the magazine with fasteners unless it
is correctly installed onto the tool. The fasteners
could be ejected uncontrollably.
d) Never use a worn or damaged piston stopper and
donottamperwithormodifythepiston.
en
2
Printed: 17.04.2014 | Doc-Nr: PUB / 5126191 / 000 / 02
1.1.6 Thermal safety precautions
a) If the tool has overheated, allow it to cool down.
Do not exceed the recommended fastener driving
rate.
b) Always wear gloves if the tool has to be disman-
tled for cleaning or maintenance before it has
been allowed to cool down.
c) The tool must be allowed to cool down if the
plastic cartridge strip begins to melt.
1.1.7 Danger of explosion
a) Use only cartridges of a type approved for use
with the tool.
b) Remove the cartridge strip from the tool carefully.
c) Do not attempt to forcibly remove cartridges from
the magazine strip or tool.
d) Unused cartridges must be stored in a dry, high
place, locked up or out of reach of children.
1.1.8 Personal protective equipment
The user and any other persons in the vicinity must
wear suitable eye protection, a hard hat and ear
protection while the tool is in use or when remedying
a problem with the tool.
2 General information
2.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
seriousbodilyinjuryorfatality.
WARNING
Draws attention to a potentially dangerous situation that
could lead to serious personal injury or fatality.
CAUTION
Draws attention to a potentially dangerous situation that
could lead to slight personal injury or damage to the
equipment or other property.
NOTE
Draws attention to an instruction or other useful informa-
tion.
2.2 Explanation of the pictograms and other
information
Warning signs
General
warning
Warning:
explosive
substances
Warning: hot
surface
Obligation signs
Wear eye
protection
Wear a hard
hat
Wear ear
protection
Wear
protective
gloves
Read the
operating
instructions
before use.
Location of identification data on the tool
The type designation and serial number can be found on
thetypeidentificationplateonthetool.Makeanoteof
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.:
en
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Printed: 17.04.2014 | Doc-Nr: PUB / 5126191 / 000 / 02
3 Description
3.1 Use of the product as directed
The tool is intended for use in the construction industry and associated trades for driving fasteners into steel.
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, magazine, 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.
The tool features a 5-way safety system for the safety of the user and all bystanders.
3.2 Piston principle with piston brake
The energy from the propellant charge is transferred to a piston, the accelerated mass of which drives the nail into the
base material. Due to use of this piston principle, the tool is classified as a “low velocity tool”. Approximately 95% of
kinetic energy is taken up by the piston when the tool is fired. As the piston is always stopped by the tool as it reaches
the end of its travel, excess energy is absorbed by the tool. Accordingly, when the tool is used correctly, dangerous
through‐shots (i.e. with a nail muzzle velocity of over 100 m/s) are virtually impossible.
3.3 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 angletheimpactoccurs.
3.4 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.
3.5 Contact pressure safety device
The tool can be fired only when pressed fully against a firm surface with a force of at least 50 N.
3.6 Unintentional firing safety device
The tool is also equipped with an unintentional firing safety device. This prevents the tool from firing if the trigger is first
pulled and the tool then pressed against the work surface. The tool can be fired only when it is first pressed correctly
against the work surface and the trigger subsequently pulled.
3.7 DX 76 tool: applications and suitable fasteners
Fastening profile metal sheet to steel, steel thickness 6 mm up to solid steel
Items required Ordering designation Comments
Fasteners X‑ENP‑19 L15 MX 10 fasteners per magazine
strip
Fastener magazine MX 76
Piston set X‑76‑P‑ENP
Items required Ordering designation Comments
Fasteners X‑ENP‑19 L15 Single fastener
Single fastener guide X‑76‑F‑15
en
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Printed: 17.04.2014 | Doc-Nr: PUB / 5126191 / 000 / 02
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