Hilti GX 2 User manual

Reference Test report no. 15010164
EUT: GX 2
FCC ID: SDL-GXR02
FCC Title 47 CFR Part 15 C
Date of issue: 2015-11-09
Date: 2015-03-13
Vers. no. 1.15
m. dudde hochfrequenz-technik
Rottland 5a
D-51429 Bergisch Gladbach/ Germany
Tel: [phone]
Fax [phone]
Annex acc. to FCC Title 47 CFR Part 15
relating to
Hilti Corporation
GX 2
Annex no. 5
User Manual
Functional Description
Title 47 - Telecommunication
Part 15 - Radio Frequency Devices
Subpart C –Intentional Radiators
Measurement Procedure: ANSI C63.4-2009

GX 2
English en
Français fr
Português pt
Español es

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GX 2
en Original operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
fr Moded'emploioriginal .................................... 16
pt Manual de instruções original . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
es Manual de instrucciones original . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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1 Information about the documentation
1.1 Explanation of signs used
1.1.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The
following signal words are used in combination with a symbol:
DANGER! Draws attention to imminent danger that will lead to serious personal
injury or fatality.
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.
1.1.2 Symbols
The following symbols are used:
Read the operating instructions before use.
Draws attention to instructions or other useful information.
General obligation sign
Wear eye protection.
Wear ear protection.
Wear a hard hat.
Return waste material for recycling.
1.1.3 Illustrations
The illustrations in these operating instructions are intended to convey a basic under-
standing and may differ from the actual version of the product:
The illustrations at the beginning of this documentation are numbered with these
numbers; in the text in these operating instructions these numbers refer to the
applicable illustration.
Item reference numbers are used in the overview illustration. In the product
overview section, the numbers shown in the legend relate to these item refer-
ence numbers.
1.1.4 Highlighting of designations and markings
Designations and markings are indicated as follows:
‚ ‛ Description of marked operating controls on the fastening tool
« » Markings on the fastening tool
1.2 About this documentation
▶It is essential that the operating instructions are read before initial operation.
▶Always keep these operating instructions together with the power tool.

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▶Ensure that the operating instructions are with the power tool when it is given to other
persons.
Changes and errors excepted.
1.3 Product information
Hilti products are designed for professional use and may be operated, serviced and
maintained only by trained, authorized personnel. This personnel must be informed of
any particular hazards that may be encountered. The product and its ancillary equipment
may present hazards when used incorrectly by untrained personnel or when used not as
directed.
▶Make a note of the designation and serial number printed on the identification plate in
the following table.
▶Always quote this information when you contact a Hilti representative or Hilti Service
to enquire about the product.
Product information
Type:
Generation: 01
Serial number:
2 Safety
2.1 Safety instructions
Working safely with the fastening tool
▶Pressing the nosepiece of the fastening tool against a part of the body may lead to
serious injury due to inadvertent actuation and release of a fastener. Never press the
nosepiece of the tool against your hand or any other part of the body.
▶When inserting/loading application-specific fasteners (e.g. washers, clips or clamps,
etc.) in/on the fastener guide there is a risk of serious injury due to inadvertent
actuation of the tool resulting in discharge of a fastener. When inserting/loading an
application-specific type of fastener, never press a hand or any other part of the
body against the fastener guide.
▶Never point the fastening tool towards yourself or any other person.
▶Keep your arms flexed when operating the tool (do not straighten the arms).
▶When pulling back the nail pusher, always take care to ensure that it engages.
▶When disengaging the nail pusher, do not release it and allow it to jump forward.
Guide it forward slowly. There is a risk of pinching the fingers.
▶Do not attempt to drive fasteners into materials that are too hard, such as welded
steel or cast steel. Attempting to drive fasteners into these materials may lead to
malfunctions, incorrectly driven fasteners or breakage of fasteners.
▶Do not attempt to drive fasteners into materials that are too soft, such as wood
or drywall/gypsum board. Attempting to drive fasteners into these materials may
lead to malfunctions and fasteners being driven incorrectly or driven right through the
material.
▶Do not attempt to drive fasteners into materials that are too brittle, such as glass
or tiles. Attempting to drive fasteners into these materials may lead to malfunctions,
fasteners being driven incorrectly and may cause the material to shatter.
▶Before driving fasteners, check that there is no risk of injuring persons or of damaging
objects present behind or below the working surface.

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▶Pull the safety trigger only when the fastening tool is pressed against the working
surface in such a way that the fastener guide is pushed into the tool as far as it will go.
▶Always wear gloves if you have to carry out maintenance work on the fastening
tool while it is still hot.
▶If fasteners are driven at a high rate or if the tool used for a long period, surfaces of
the tool beyond the grip areas may get hot. Wear protective gloves to avoid burning
injuries.
▶If the fastening tool overheats, remove the gas can and allow the tool to cool down.
Do not exceed the specified maximum fastener driving rate.
▶Driving fasteners may cause flying fragments or result in parts of the nail strip material
being forcibly ejected from the tool. Flying fragments present a risk of injury to the
body and eyes. Wear eye protection, ear protection and a hard hat. Depending
on the application and type of fastening tool in use, wearing personal protective
equipment such as a dust mask, non-slip safety footwear, hard hat and ear protection
reduces the risk of injury. Other persons in the vicinity must also wear eye protection
and a hard hat.
▶Wear suitable ear protection ( see noise information in the technical data section).
Fasteners are driven through ignition of a gas/air mixture. The resulting noise exposure
may cause damage to the hearing. Other persons in the vicinity should also wear
suitable hearing protection.
▶When driving a fastener, always hold the fastening tool securely and at right angles to
the supporting material. This helps to avoid deflection of the fastener by the supporting
material.
▶Never drive a second fastener at the same location. This may lead to breakage or
jamming of fasteners.
▶Always remove the gas can ( → page 9) and battery ( → page 9) and empty the
magazine ( → page 9) before changing the magazine or before cleaning, servicing
or maintenance work on the tool, before storage or transport and before leaving the
fastening tool unattended.
▶To ensure that the fastening tool functions faultlessly and as intended, always check
the tool and accessories for possible damage before use. Check that moving parts
function faultlessly, without sticking, and that no parts are damaged. In order to
ensure faultless operation of the fastening tool, all parts must be fitted correctly and
must meet the necessary requirements. Damaged protective devices or other parts
must be properly repaired or replaced by Hilti Service unless otherwise stated in the
operating instructions.
▶Have the fastening tool repaired only by trained and qualified specialists using genuine
Hilti spare parts. This will ensure that the safety of the fastening tool is maintained.
▶Tampering with or modification of the fastening tool is not permissible.
▶Do not use the fastening tool where there is a risk of fire or explosion.
▶Take influences of the surrounding area into account. Do not expose the fastening
tool to rain or snow and do not use it in damp or wet conditions.
▶Use the fastening tool only in well-ventilated working areas.
▶Select the correct combination of fastener guide and fastener. The wrong combination
may result in damage to the tool and in reduced fastening quality.
▶Always observe the application guidelines → page 5.
Hazards presented by electricity
▶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.
▶Hold the fastening tool only by the insulated grip when working in areas where
fasteners may be driven inadvertently into concealed electric cables. Contact with a

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live electric cable may cause metal parts of the fastening tool also to become live,
leading to a risk of electric shock.
Use and care of battery-powered tools
▶Check that the tool is switched off before inserting the battery. Inserting a battery
into an electric tool that is switched on can lead to accidents.
▶Do not expose batteries to high temperatures, the direct heat of the sun, and
keep them away from fire. There is a risk of explosion.
▶Do not disassemble, squash or incinerate batteries and do not subject them
to temperatures over 80°C. This presents a risk of fire, explosion or injury through
contact with caustic substances.
▶Avoid ingress of moisture. Ingress of moisture may cause a short circuit, resulting in
burning injuries or fire.
▶Use only batteries of the type approved for use with the applicable tool. Use of
other batteries or use of the batteries for purposes for which they are not intended
presents a risk of fire and explosion.
▶Observe the special guidelines applicable to the transport, storage and use of
Li-ion batteries.
▶Remove the battery from the tool before transport or storage.
▶Avoid short circuiting the battery terminals. Check that the contacts on the
battery and on the tool are free from foreign objects before inserting the battery
into the tool. Short circuiting the battery terminals presents a risk of fire, explosion
and chemical burns.
▶Do not continue to use or attempt to charge damaged batteries (e.g. batteries
with cracks, broken parts, bent or pushed-in / pulled-out contacts).
▶A battery that is too hot to hold may be defective. Allow the battery to cool down in
a place where there is no risk of causing a fire. Check that there are no flammable
materials nearby. Contact Hilti Service.
Instructions for handling the propellant gas
▶Observe the instructions printed on the gas can and in the accompanying information.
▶Escaping gas is harmful to the lungs, skin and eyes. Keep your face and eyes away
from the gas can compartment for up to about 10 seconds after removing the gas
can.
▶Do not operate the gas can valve manually.
▶If a person has inhaled gas, take the person into the open air or into a well-ventilated
area and place the person in a comfortable position. Consult a doctor if necessary.
▶Call a doctor if the person is unconscious. Bring the person into a well-ventilated
area and place the person in the stable recovery position (i.e. lying on the side). If
the person is not breathing, administer artificial respiration and, if necessary, supply
oxygen.
▶After eye contact with gas, rinse the open eyes thoroughly under running water for
several minutes.
▶After skin contact with gas, wash the contact area carefully with soap and warm water.
Subsequently apply a skin cream.
General instructions concerning personal safety
▶Take care to adopt an ergonomic body position. Work from a safe stance and take
care to stay in balance at all times. This will allow you to control the fastening tool
better, even in unexpected situations.
▶Keep other people away from the working area, especially children.

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3 Description
3.1 Overview of the product 1
@Fastener guide
;Slider for fastener driving depth
adjustment and for releasing the
fastener guide
=Belt hook
%Safety trigger
&Magazine lockbutton
(Support leg
)Magazine
+Nail pusher
§Cooling air slots
/Gas can compartment
:Battery release button
∙Battery charge status display
$Gas can status indicator button
£Gas can status indicator
3.2 Intended use
The product described is a gas-actuated fastening tool. It is designed to drive suitable
fasteners (nails) into concrete, steel, concrete-block masonry, sand-lime block, rendered
masonry and other materials suitable for use of the direct fastening technique.
Further details can be found in the Fastening Technology Manual, copies of which can
be obtained from a Hilti Service Center or online at: www.hilti.com
The fastening tool is designed for professional use in drywall construction, general
construction work and in various installation trades.
The fastening tool, gas can, battery and fasteners form a technical unit. This means
that trouble-free fastening with this fastening tool can be ensured only when it is used
together with the fasteners, gas cans and batteries specially manufactured for it by Hilti.
The fastening and application recommendations made by Hilti apply only when this
condition is observed.
The fastening tool is for hand-held use only.
▶Use only Hilti Li-ion batteries from the B 12 series with this product.
▶Use only Hilti battery chargers of the C 4/12-50 series for charging these batteries.
3.3 Items supplied
Gas-actuated fastening tool with fastener guide, 2 batteries, charger, toolbox and
operating instructions.
You can find other system products approved for your product at your local Hilti Center
or online at: www.hilti.com
3.4 Fastener guide
The fastener guide holds the studs or, respectively, guides the nails and, when the tool is
actuated, thus directs the fasteners into the supporting material at the desired position.
3.5 Guidelines for use on concrete and steel
Information about national regulations, and the Fastening Technology Manual contain-
ing further information, are available from the Hilti marketing organization responsible for
your location.
The Fastening Technology Manual can be found online at: www.hilti.com
3.6 Slider for fastener driving depth adjustment and for releasing the fastener
guide
The slider can be used to reduce the depth to which the fastener is driven. In the «EJECT»
position, it releases the fastener guide for removal.

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Status Meaning
«+» • Standard fastener driving depth
«» • Reduced fastener driving depth
«EJECT» • Fastener guide release
3.7 Support leg
On an even working surface, the support leg makes it easier to hold the fastening tool
perpendicular as attention then only has to be paid to lateral alignment. On an uneven or
undulating surface it may be necessary to remove the support leg in order to allow the
fastener guide to be held perpendicular to the working surface.
3.8 Belt hook
The belt hook can be extended in three stages.
Status Meaning
Position 1 • Position for attaching to a waist belt
Position 2 • Position for attaching to ladders,
scaffolds, platforms, etc.
Position 3 • Belt hook removed
3.9 Gas can
Note
Observe the safety instructions provided with the gas can!
In order to operate the fastening tool, the gas can must be inserted in the gas can
compartment.
The gas can status can be read from the LED display after pressing the ‚GAS‘ button.
The gas can must be removed before breaks between working, before maintenance and
before transporting or storing the fastening tool.
3.10 Indication of gas can status
After pressing the ‚GAS‘ button, the LED display indicates the status of the gas can.
Status Meaning
All four LEDs light green. • The level is between 100 % and 75 %.
Three LEDs light green. • The level is between 75 % and 50 %.
Two LEDs light green. • The level is between 50 % and 25 %.
One LED lights green. • The level is between 25 % and 10 %.
One LED blinks green. • Level is below 10 %. Replacement of
the gas can is recommended.
One LED blinks green. • The gas can is empty or is malfunc-
tioning. Replacement of the gas can is
recommended.
Note
Even when the level is indicated as
“empty”, the gas can, for technical
reasons, still contains a little gas.

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Status Meaning
One LED blinks red. • No gas can or the wrong type of gas
can is present in the fastening tool.
3.11 Indication of battery charge status
After pressing a battery release button, the display shows the status of the battery and
the fastening tool.
Status Meaning
All four LEDs light green. • Charge status is 75 % to 100 %.
Three LEDs light green. • Charge status is 50 % to 75 %.
Two LEDs light green. • Charge status is 25 % to 50 %.
One LED lights green. • Charge status is 10 % to 25 %.
One LED blinks green. • Charge status is below 10 %. The
fastening tool is ready for operation.
One LED blinks green. • The fastening tool is overloaded or
overheated and thus not ready for
operation.
4 Technical data
4.1 Fastening tool
Weight (empty) 8.6 lb
(3.9 kg)
Application temperature, ambient temperature 14 ℉ … 113 ℉
(−10 ℃ … 45 ℃)
Maximum fastener length 1.5 in
(39 mm)
Fastener diameter • 0.10 in (2.6 mm)
• 0.12 in (3.0 mm)
Compression stroke 1.6 in
(40 mm)
Magazine capacity in strips of 10 nails (Maga-
zine capacity)
1 … 4
Maximum fastener driving frequency (Fasten-
ers per hour)
1,200
5 Loading the fastening tool
5.1 Equipment required for driving nails
Nails are fed through the magazine in strip form (ready-to-use strips of nails).
5.2 Loading the magazine
1. Pull the nail pusher back until it engages.
2. Slide the nail strips into the magazine as far as they will go.

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Note
Strips of short nails could be inadvertently inserted the wrong way round. With
short nails, take care to ensure that the tips of the nails point towards the nose
of the tool.
WARNING
Risk of finger injury! Fingers could be pinched when the nail pusher is released.
▶When disengaging the nail pusher, do not release it and allow it to jump forward.
Guide it forward slowly as far as it will go.
3. Release the nail pusher and guide it forward as far as it will go.
5.3 Inserting the gas can
1. If you are using a new gas can, remove the transport safety device. → page 9
2. Open the gas can compartment cover.
3. Push the gas can (with metering valve fitted) into the red adapter in the gas can
compartment.
4. Close the gas can compartment cover.
5.4 Inserting the battery
1. Check that the contacts on the battery and on the fastening tool are undamaged and
free from foreign objects.
2. Fit the battery and make sure that it is heard to engage.
◁Once the battery has been fitted, the charge status LEDs light for a short time.
CAUTION
A falling battery presents a hazard. If the battery is not secured correctly it may
drop out and fall while the work is in progress.
▶Check that the battery is seated securely.
3. Check that the battery is securely seated in the fastening tool.
6 Driving nails
WARNING
Risk of injury! Pressing the nosepiece of the fastening tool against a part of the
body may lead to serious injury due to inadvertent firing and release of a fastener.
▶Never press the nosepiece of the tool against your hand or any other part
of the body.
1. Check the fastener driving depth setting.
2. Bring the nosepiece of the fastening tool and the support leg into contact with the
working surface.
3. Press the fastening tool against the working surface as far as it will go (until fully
compressed).
4. Check that the fastener guide is perpendicular to the working surface.
5. Pull the safety trigger to drive a fastener.

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Note
It is not possible to drive a fastener if the fastening tool is not pressed fully
against the working surface.
6. Lift the fastening tool completely away from the working surface after driving a
fastener.
7. Remove the gas can ( → page 9) and battery ( → page 9) and empty the magazine
( → page 9) when work with the fastening tool is finished or before leaving the tool
unattended.
7 Unloading the fastening tool
7.1 Removing the battery
▶Press both battery release buttons at the same time and pull the battery out of the
fastening tool.
7.2 Removing the gas can
1. Open the gas can compartment.
2. Remove the gas can.
3. Close the gas can compartment.
7.3 Unloading the magazine
1. Pull the nail pusher back until it engages.
2. Remove all nail strips from the magazine.
WARNING
Risk of finger injury! Fingers could be pinched when the nail pusher is released.
▶When disengaging the nail pusher, do not release it and allow it to jump forward.
Guide it forward slowly as far as it will go.
3. Release the nail pusher and guide it forward as far as it will go.
8 Optional operating steps
8.1 Removing the transport safety device from a new gas can 2
1. Lift the transport safety device, containing the metering valve, away from the gas can.
2. Remove the metering valve from the transport safety device.
3. Fit the metering valve onto the gas can, with the foremost of the two grooves on the
lip of the can.
4. Press the metering valve firmly onto the gas can, bringing the rearmost groove towards
the lip of the can, until the metering valve is heard to snap into place over the lip and
it then lies flush with the can.
8.2 Checking the status of the gas can
1. After inserting the battery, press the ‚GAS‘ button without pressing the fastening tool
against the working surface.
2. Read the gas can status from the display. → page 6
8.3 Removing the magazine
1. Pull the nail pusher back until it engages.

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Note
The magazine cannot be removed if the nail pusher has not been pulled back
until it engages in the rearmost position.
2. Remove the loose nail strips from the magazine.
3. Release the magazine locking catch.
4. Pivot the magazine about the pivot point towards the front.
5. Detach the magazine.
WARNING
Risk of finger injury! Fingers could be pinched when the nail pusher is released.
▶When disengaging the nail pusher, do not release it and allow it to jump forward.
Guide it forward slowly as far as it will go.
6. Release the nail pusher and guide it forward as far as it will go.
8.4 Fitting the magazine
1. Pull the nail pusher back until it engages.
Note
The magazine cannot be fitted if the nail pusher has not been pulled back until it
engages in the rearmost position.
2. Engage the front end of the magazine with the fastening tool.
3. Pivot the magazine towards the fastening tool as far as it will go.
4. Close the magazine locking catch.
WARNING
Risk of finger injury! Fingers could be pinched when the nail pusher is released.
▶When disengaging the nail pusher, do not release it and allow it to jump forward.
Guide it forward slowly as far as it will go.
5. Release the nail pusher and guide it forward as far as it will go.
8.5 Removing the fastener guide
1. Remove the battery. → page 9
2. Remove the gas can. → page 9
3. Unload the magazine. → page 9
4. Move the fastener guide release slider to the «EJECT» position.
5. Remove the fastener guide.
8.6 Inserting the fastener guide
1. Remove the gas can. → page 9
2. Remove the battery. → page 9
3. Unload the magazine. → page 9
4. Push the fastener guide release slider in the direction of the arrow into the «EJECT»
position and hold it there.
Note
The fastener guide can be inserted only when the slider is held in the «EJECT»
position.

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5. Slide the fastener guide into the slot in the nose of the fastening tool until it is heard
to engage.
6. Check that the fastener guide is seated correctly.
8.7 Removing the support leg
1. Release the support leg engaging mechanism by pressing lightly.
2. Pivot the support leg until it can be withdrawn from the locating groove.
8.8 Fitting the support leg
1. Insert the support leg in the locating groove.
2. Pivot the support leg downwards until it engages.
9 Remedying possible malfunctions
9.1 Removing foreign objects from the area of the fastener guide
1. Remove the battery. → page 9
2. Remove the gas can. → page 9
3. Unload the magazine. → page 9
4. Remove the magazine. → page 9
5. Remove the fastener guide. → page 10
6. Remove all foreign objects from the area of the fastener guide.
7. Insert the fastener guide. → page 10
8. Fit the magazine. → page 10
10 Care and maintenance
10.1 Caring for the fastening tool
▶Clean the fastening tool with a cloth at regular intervals (see also → page 11).
▶Keep the grip areas free from oil and grease.
▶Do not use spray equipment, pressure jet washers or running water for cleaning.
▶Do not use cleaning agents containing silicone.
▶Do not use sprays or similar lubricating and cleaning agents.
▶Never operate the fastening tool if the cooling air slots are blocked.
10.2 Cleaning the fastening tool
Note
The fastening tool must be cleaned and serviced regularly. We recommend that a
cleaning service is carried out, at the latest, after driving 25,000 fasteners.
▶Clean the fastening tool, or have it cleaned, if malfunctions such as misfiring occur
increasingly.
▶For cleaning, use the cleaning set (available as an accessory) and observe the
illustrated cleaning instructions enclosed with it.
10.3 Maintenance
▶To help ensure safe and reliable operation, use only genuine Hilti spare parts and
consumables. Spare parts, consumables and accessories approved by Hilti for use
with the product can be found at your local Hilti Center or online at: www.hilti.com.

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▶Check all external parts of the fastening tool regularly for damage and make sure that
all operating controls function faultlessly.
▶Do not use the fastening tool if parts are damaged or if operating controls do not
function faultlessly.
▶Have a defective fastening tool repaired by Hilti Service.
10.4 Checks after care and maintenance work
▶After maintenance, check that the fastener guide is fitted → page 10.
11 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy
the problem by yourself, please contact Hilti Service.
Malfunction Possible cause Action to be taken
Fasteners are frequently
driven to inadequate
depth.
Driving power is too low. ▶Move the fastener driving
depth adjustment slider to
the «+» position.
The fasteners are too long. ▶Use shorter fasteners.
The supporting material is
too hard.
▶Consider using a DX
fastening tool.
Fasteners are frequently
driven too deeply.
Driving power is too high. ▶Move the fastener driving
depth adjustment slider to
the «‒» position.
The fasteners are too short. ▶Use longer fasteners.
Fasteners break.
Driving power is too low. ▶Move the fastener driving
depth adjustment slider to
the «+» position.
The fasteners are too long. ▶Use shorter fasteners.
The supporting material is
too hard.
▶Consider using a DX
fastening tool.
The fastener guide is not
held perpendicular to the
working surface.
▶Use the support leg on an
even surface and make
sure that it’s in contact
with the surface (see
support leg → page 6).
▶Press the nose of the tool
against the working sur-
face, keeping the fastener
guide perpendicular to the
surface (see driving nails,
→ page 8).
Fasteners bend.
Driving power is too low. ▶Move the fastener driving
depth adjustment slider to
the «+» position.
The fasteners are too long. ▶Use shorter fasteners.

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Malfunction Possible cause Action to be taken
Fasteners bend.
The fastener guide is not
held perpendicular to the
working surface.
▶Use the support leg on an
even surface and make
sure that it’s in contact
with the surface (see
support leg → page 6).
▶Press the nose of the tool
against the working sur-
face, keeping the fastener
guide perpendicular to the
surface (see driving nails,
→ page 8).
Fasteners do not hold in
steel base material.
The supporting material is
too thin.
▶Use a different fastening
method.
The content of the gas
can is inadequate for
the number of fasteners
in the package.
High gas consumption due
to frequent compression of
the tool nosepiece without
driving a fastener.
▶Avoid compressing the
tool nosepiece without
driving a fastener.
The fastener guide has-
n’t fully extended after
driving a fastener.
A fastener has jammed in
the fastener guide.
▶Remove the fastener
guide → page 10.
▶Release the jammed
fastener.
▶Clean the fastener guide.
▶Remove foreign objects
from the area of the
fastener guide.
Fastener driving failure
rate is too high.
The fastener guide is not
held perpendicular to the
working surface.
▶Use the support leg on an
even surface and make
sure that it’s in contact
with the surface (see
support leg → page 6).
▶Press the nose of the tool
against the working sur-
face, keeping the fastener
guide perpendicular to the
surface (see driving nails,
→ page 8).
Wrong type of fastener used. ▶Use a suitable type of
fastener.
The supporting material is
too hard.
▶Consider using a DX
fastening tool.
No fastener is driven. The nail pusher was not
moved forward.
▶Release the nail pusher
and guide it forward as far
as it will go.
Inadequate number of nails
in the magazine.
▶Load the magazine.
→ page 7

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Malfunction Possible cause Action to be taken
No fastener is driven. Nail transport malfunction. ▶Check the nail strip and, if
damaged, use a new one.
▶Clean the magazine and
the fastener guide.
The battery is discharged. ▶Change the battery.
Empty gas can ▶Check the status of the
gas can. → page 9
LED 1 lights red ▶Check the status of the
gas can. → page 9
Incorrect piston position
due to lifting the tool away
too soon after driving the
fastener.
▶Keep the tool pressed
against the surface for
longer.
Incorrect piston position due
to carbon build-up.
▶Clean the fastening tool
→ page 11.
The tool doesn’t fire due to a
dirty spark plug.
▶Clean the fastening tool.
→ page 11
Foreign object in the area of
the fastener guide.
▶Remove foreign objects
from the area of the
fastener guide. → page 11
Electronic fault. ▶Remove the gas can and
then reinsert it. If the
problem persists, use a
new gas can.
▶Remove the battery and
then reinsert it.
No fastener is driven
(or driven only intermit-
tently).
Ambient conditions are out-
side the permissible range.
▶Make sure that the per-
missible ranges, in accor-
dance with the technical
data, are observed.
The gas can temperature
is outside the permissible
range.
▶Make sure that the per-
missible ranges, in accor-
dance with the technical
data, are observed.
The tool was not lifted com-
pletely away from the sur-
face after driving a fastener.
▶Lift the fastening tool
completely away from
the working surface after
driving a fastener.
A fastener cannot be re-
moved from the fastener
guide.
A fastener has jammed in
the fastener guide.
▶Remove the fastener
guide → page 10.
▶Release the jammed
fastener.
▶Clean the fastener guide.
▶Remove foreign objects
from the area of the
fastener guide.

15
12 Disposal
WARNING
Risk of injury. Hazards presented by improper disposal.
▶Improper disposal of the equipment may have the following consequences:
The burning of plastic components generates toxic fumes which may present
a health hazard. Batteries may explode if damaged or exposed to very high
temperatures, causing poisoning, burns, acid burns or environmental pollution.
Careless disposal may permit unauthorized and improper use of the equipment.
This may result in serious personal injury, injury to third parties and pollution of
the environment.
▶Dispose of defective batteries right away. Keep them out of reach of children.
Do not disassemble or incinerate the batteries.
▶Batteries that have reached the end of their life must be disposed of in accordance
with national regulations or returned to Hilti.
Most of the materials from which Hilti tools and appliances are manufactured can
be recycled. The materials must be correctly separated before they can be recycled.
In many countries, your old tools, machines or appliances can be returned to Hilti for
recycling. Ask Hilti Service or your Hilti representative for further information.
13 Manufacturer’s warranty
▶Please contact your local Hilti representative if you have questions about the warranty
conditions.
14 FCC statement (applicable in US) / IC statement (applicable in Canada)
This device complies with Part 15 of the FCC Rules and RSS-210 of IC. Operation is
subject to the following two conditions:
1. This device shall cause no harmful interference.
2. This device must accept any interference received, including interference that may
cause undesired operation.