DX 6-GR

About this documentation

• Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product.
  
• Observe the safety instructions and warnings in this documentation and on the product.
  
• Always keep the operating instructions with the product and make sure that the operating instructions are with the product when it is given to other persons.
  

Explanation of symbols used

Warnings

Warnings alert persons to hazards that occur when handling or using the product. The following signal words are used:

Symbols in the operating instructions

The following symbols are used in these operating instructions:

	Comply with the operating instructions
	Instructions for use and other useful information
	Dealing with recyclable materials
	Do not dispose of electric equipment and batteries as household waste

Symbols in illustrations

The following symbols are used in illustrations:

	These numbers refer to the illustrations at the beginning of these operating instructions.
	The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text.
	Item reference numbers are used in the overview illustration and refer to the numbers used in the key in the product overview section.
	These characters are intended to specifically draw your attention to certain points when handling the product.

Product-dependent symbols

Symbols

The following symbols are also used:

If applied on the product, the product has been certified by this certification body for the US and Canadian markets according to the applicable standards.

Obligation symbols

The following obligation symbols are used on the product:

	Warning! Observe the instructions.
	Wear a hard hat
	Wear eye protection
	Wear ear protection

Information shown on the display

The following information may be shown on the display:

	This symbol indicates the battery’s state of charge. When the battery is empty, the maintenance symbol appears.
	The "maintenance" symbol indicates that maintenance is due. It appears after 5 years, when 30,000 fasteners have been driven, or when the battery is empty. Our recommendation: Consult Hilti Service.
	The "fasteners driven" counter indicates when the next service is due. One segment stands for 500 fasteners driven. There are 5 segments in total, representing 2,500 fasteners driven.
	This symbol indicates whether Bluetooth is switched on. If the symbol is not shown on the display then Bluetooth is switched off.

Product information

products are designed for professional users and only trained, authorized personnel are permitted to operate, service and maintain the products. This personnel must be specifically informed about the possible hazards. The product and its ancillary equipment can present hazards if used incorrectly by untrained personnel or if used not in accordance with the intended use.
The type designation and serial number are printed on the rating plate.

• Write down the serial number in the table below. You will be required to state the product details when contacting Hilti Service or your local Hilti organization to inquire about the product.
  Product information

  Fastening tool	DX 6-GR
  Generation	01
  Serial no.

Safety instructions for powder-actuated direct fastening tools

• Do not tamper with or modify the fastening tool in any way.
  
• Use only fastening tools and items of equipment that are compatible with each other (base plates, fastener guides, magazines, pistons and fasteners) and consumables (fasteners and cartridges).
  
• Check the fastening tool and accessories for damage.
  
• Moving parts must be in full working order; make sure that they cannot jam. Comply with the instructions on cleaning and oiling in these operating instructions.
  
• All parts must be correctly installed to ensure faultless operation of the fastening tool. Damaged parts must be properly repaired or replaced by Hilti Service unless otherwise stated in the operating instructions.
  
• Use only Hilti DX cartridges, or other suitable cartridges that meet the minimum safety requirements.
  
• Use the fastening tool only for the applications defined in the section headed "Intended use".
  
• Do not attempt to drive fasteners into unsuitable base materials, for example material that is too thin, too hard, or too brittle. Driving a fastener into these materials can cause the fastener to break, splinter the material or be driven right through. Examples of unsuitable materials are:
  
• Weld seams in steel, cast iron, glass, marble, plastic, bronze, brass, copper, insulating material, hollow brick, ceramic brick, thin sheet metal (< 4 mm) and cellular concrete.
  
• Comply with the Hilti 'Direct Fastening Technology Manual' or the corresponding local Hilti 'Technical Guide to Fastening Technology'. Always also comply with the operating instructions of the fastener to be used.
  

Pre-use requirements

• Only appropriately trained persons who have been duly authorized and informed of the possible hazards are allowed to operate or service this fastening tool.
  
• Wear your personal protective equipment while the tool is in use.
  
• Wear suitable eye protection and a hard hat.
  
• Wear protective gloves. The fastening tool can get hot in use.
  
• Wear ear protectors. The ignition of a propellant charge can damage the hearing.
  
• Wear non-skid shoes.
  

Safety at the workplace

• Keep the workplace tidy. Objects which could cause injury should be removed from the working area. Disorder in the working zone can lead to accidents.
  
• Make sure that the working area is well lit and, when working in an enclosed space, make sure it is adequately ventilated.
  

Personal safety

• Never press the nosepiece of the fastening tool against your hand or any other part of the body! Never point the fastening tool toward other persons!
  
• Do not compress the fastening tool with your hand on the magazine or fastener guide, piston or piston guide or a loaded fastener. Compressing the fastening tool by hand can make the fastening tool ready to fire, even without a fastener guide installed. This gives rise to a risk of serious injury for yourself and others.
  
• Everyone in the vicinity must wear ear protection, eye protection and a hard hat.
  
• Stay alert, watch what you are doing and use common sense when operating a direct fastening tool. Do not use the fastening tool when you are tired or under the influence of drugs, alcohol or medication. Stop working if you experience pain or feel unwell. A moment of inattention while operating the fastening tool can result in serious injury.
  
• Avoid working in awkward body positions. Make sure you work from a safe stance and stay in balance at all times.
  
• Keep the arms slightly bent while operating the fastening tool, do not straighten the arms.
  
• Keep other people away from the working area, especially children.
  

Use and care of direct fastening tools

• Use the fastening tool only for its intended use and only when it is in faultless condition. Do not attempt to use the tool for purposes for which it is not intended.
  
• Do not use the fastening tool in places where there is a risk of fire and explosion.
  
• Before driving fasteners, check behind the object to make sure that no-one is present in line with the fasteners to be driven. Danger of fasteners penetrating right through!
  
• Make sure that the nosepiece of the fastening tool is never pointed toward yourself or other persons.
  
• Hold the fastening tool only by the gripping surfaces provided for the purpose.
  
• Keep the gripping surfaces dry, clean and free from oil and grease.
  
• Pull the trigger only when the fastening tool is at right angles to and pressed fully against the work surface.
  
• Before starting work, check the selected energy setting.
  
• Carry out a test by driving fasteners into the base material.
  
• Always position the nosepiece of the fastening tool on smooth, flat surfaces free of obstructions and fully supported by the sub-structure.
  
• When driving fasteners, always hold the fastening tool at right angles to the work surface. This reduces the risk of a fastener being deflected by the base material.
  
• Do not drive fasteners into existing holes unless this is recommended by Hilti (e.g. DX-Kwik).
  
• Do not re-use a fastener that was used beforehand - risk of injury! Use a new fastener.
  
• Do not attempt to re-drive a fastener that was not driven in deeply enough! The fastener could break.
  
• Comply with the specifications for distances from edges and spacing between fasteners (see the section headed "Minimum distances").
  
• Never leave a loaded fastening tool unattended.
  
• Always unload the fastening tool (remove cartridges and fasteners) before cleaning, maintenance and care, changing the fastener guide, before work breaks and before storing the tool.
  
• Transport and store the fastening tool in the Hilti case intended for the purpose.
  
• Store fastening tools that are not in use in a dry, secure place where they are inaccessible to children.
  

• Before driving fasteners, check that there is no electrical wiring, water piping or gas piping behind the surface into which you want to drive them.
  
• For detailed information, request a copy of the Hilti 'Direct Fastening Technology Manual' or the corresponding local Hilti 'Technical Guide to Fastening Technology' from your Hilti  Store.
  

Thermal safety rules

• Do not exceed the maximum fastener driving rate recommended in the section headed "Technical data ".
  
• If the fastening tool overheats or if the cartridge strip deforms or melts, remove the cartridge strip and allow the fastening tool to cool down.
  
• Do not dismantle the fastening tool while it is hot. Allow the fastening tool to cool down.
  

Risk of explosion with cartridges

• Use only cartridges that are suitable and approved for use with the fastening tool.
  
• Remove the cartridge strip when you are going to take a break and when you have finished the job, and before you transport the fastening tool.
  
• Do not use force to remove fasteners and/or cartridges from the magazine strip or the fastening tool.
  
• Store unused cartridges in accordance with the storage specifications for cartridges for powder-actuated fastening tools (e.g. dry, temperature between 5 °C and 25 °C) in a secured storage facility.
  
• Do not leave unused or partly used cartridge strips lying around. Collect the used cartridge strips and store the cartridge strips at a suitable location.
  
• Follow all instructions relating to safety, handling and storage in the safety data sheet of the cartridges.
  

Product overview (fastening tool)

1. Selector ring for driving energy
   
2. Guide sleeve
   
3. Exhaust gas piston return unit
   
4. Piston
   
5. Piston rings
   
6. Release button for selector ring for driving energy
   
7. Housing
   
8. Cartridge barrel (ejection)
   
9. Operating button at display
   
10. Cartridge barrel (insertion)
    
11. Trigger
    
12. Air vents
    
13. Installation interface for accessories
    
14. Gripping surfaces
    

Product overview (fastener guides)

1. Fastener guide
   
2. Fastener guide release button
   
3. Buffer
   
4. Centering sleeve
   

Controls on the fastening tool

The controls on the fastening tool are as follows:

	Release button for selector ring for driving energy The button unlocks the selector ring for driving energy or is used for removal of the exhaust gas piston return unit.
	Release button for fastener guide (A) The button unlocks the fastener guide so that the fastener guide can be changed or the fastening tool cleaned.

Intended use

The product described is a fastening tool for driving nails, studs and fasteners into steel.

Use the product only in combination with the equipment designed for use with the fastening tool. Fastener guides, pistons and fasteners must be compatible with one another.
Use the product only with spare parts and accessories from Hilti and with cartridges and fasteners from Hilti , or other suitable cartridges and fasteners.

Bluetooth^®

The Bluetooth ^® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc and any use of such marks by Hilti Corporation is under license.
Bluetooth is a wireless data transfer system by which the two Bluetooth-enabled products can communicate with each other over a short distance.
This product has a Bluetooth Low Energy module. The module enables communication and data transfers between smart phones and Hilti gateway. The module is used for checking the status of the product and can submit data attributes such as location of the receiving device, runtime, total application count, application count during interval and timestamp of transfer.

Data transmission via Bluetooth

The data transmission interval can vary, depending on the available power source of the product. The signal range can vary greatly depending on external conditions, including the receiving device used. The Bluetooth range can be significantly less inside closed rooms and through metallic barriers (e g. walls, shelving units, cases, etc.). Depending on ambient conditions, several transmission intervals may be required before the product is detected.
If the product is not detected, check the following:
• Is the distance to the mobile terminal device too great?
→ Reduce the distance between the mobile terminal device and the product.

Installing and setting up the app

In order to be able to use the connectivity functions, you first have to install the respective Hilti app.
(1.) Download the app from the corresponding app store (Apple App Store, Google Play Store).
(2.) When you start the app for the first time, either log in with your account or register.
(3.) The display of your mobile terminal device will show you all the subsequent steps required to connect the product to the mobile device.

Information about the app

Requirements to be met by cartridges

Use only the Hilti DX cartridges listed in this table, or other suitable cartridges that are compliant with the minimum safety requirements:

• It is a requirement for EFTA countries that the cartridges must be CE-compliant and must bear the CE mark of compliance.
  
• It is a requirement for the United Kingdom that the cartridges must be UKCA-compliant and must bear the UKCA mark of compliance.
  
• It is a requirement for the USA that the cartridges must be compliant with the stipulations set out in ANSI A10.3-2020.
  
• It is a requirement for the non-European member states of the C.I.P. that the cartridges must have C.I.P. approval for the DX fastening tool used.
  
• It is a requirement for the remaining countries that the cartridges must have passed the firing-residues test in accordance with EN 16264 and must have a manufacturer's declaration to this effect.
  

Cartridges

Ordering designation	Color	Power level
DX 6 cartridge	titanium-gray	strong
DX 6 cartridge	black	extra-strong

Minimum distances and edge distances

You must always observe certain minimum distances and spacing when driving fasteners. They can differ, depending on the product.
Fastening to steelAlways observe the following minimum distances and spacing when fastening to steel:

• The minimum distance from the edge of the base material to the fastener must be at least 15 mm.
  
• The minimum center-to-center distance between two fasteners is 20 mm.
  
• The base material must have a thickness of at least 6 mm.
  

Information about the field of applications

See the Hilti product page for more information about the areas of application.

Bluetooth

Frequency	2,400 MHz … 2,483.5 MHz
Maximum emitted transmission power	−27.2 dBm

Noise and vibration information

The noise values listed were determined under the following conditions:
Vibration information in accordance with EN 2006/42/EG

Vibration emission

< 2.5 m/s² (< 8.2 ft/s²)

Assembling the fastening tool

1. Make sure that there are no cartridge strips in the fastening tool.
   
2. Bring the arrow marks into alignment and insert the exhaust gas piston return unit into the housing.
   
3. Insert the fastener guide centered into the exhaust gas piston return unit.
   
4. Fit the piston.
   
5. Fit the buffer onto the fastener guide.
   
6. Insert the fastener guide centered and not tilted into the exhaust gas piston return unit.
   
7. Turn the fastener guide clockwise until it engages.
   
   • The fastener guide is locked.
     

Fall arrest

As drop arrester for this product, use only the Hilti tool tether #2261971.

• Use the loop to secure the tool tether to the product as shown in the illustration. Check that it holds securely.
  
• Secure the carabiner to a load-bearing structure. Check that the carabiner holds securely.
  
  Comply with the operating instructions of the Hilti tool tether.
  

Scaffold hook (accessory)

The Hilti scaffold hook (accessory) can be installed and used for hooking the product to a railing or a tool-belt for a short time. To install the accessory, follow the installation instructions provided with the accessory.
The fastening tool must additionally be secured with the Hilti tool tether.

Loading cartridge strips

• Push the cartridge strip, narrow end first, into the grip of the fastening tool from below until the full length of the cartridge strip is inside the fastening tool.
  
  To use a cartridge strip in which some cartridges have already been used:
  Pull the fully inserted cartridge strip by hand up and out of the fastening tool until the first unused cartridge is in position in the cartridge chamber
  

Loading the single-fastener tool

• Push the fastener into the fastener guide from the front until the washer of the fastener is held in place in the fastener guide.
  

Setting driving energy

Select the energy setting that suits the application. If no empirical values are available, always start with the minimum driving energy.

1. Press and hold down the release button for the selector ring for driving energy.
   
2. Turn the selector ring for driving energy to the desired energy level.
   
   Energy levels:
   

   • 1 = lowest energy
     
   • 8 = highest energy
     
3. Check whether the fastener was correctly driven in accordance with the operating instructions of the fastener.
   

Driving fasteners

1. Position the fastening tool.
   
2. Hold the fastening tool perpendicular to the working surface and then press it at right angles against the surface.
   
3. Press the trigger to drive the fastener.
   

Unloading the single-fastener tool

1. Pull the cartridge strip up and out of the fastening tool.
   
2. Pull the fastener out of the fastening tool.
   

Driving X-FCM grating fasteners

1. Drive the threaded stud into the steel beam.
   
   Use the centering sleeve to help ensure easy centering of the fastener.
   
2. Position the X-FCM retaining flange.
   
3. Follow the instructions in the installation instructions of the fastener.
   

Driving the X-FCP checker plate fasteners

1. Drill or punch the holes in the checker plate.
   
   Observe the following minimum dimensions and distances:
   A = 18-20 mm (0,70''-0,7'')
   B ≥ 25 mm (≥ 0,98'')
   
2. Drive the threaded stud through the predrilled or punched hole.
   
3. Position the X-FCP retaining flange.
   
4. Follow the instructions in the installation instructions of the fastener.
   

Driving the X-GR grating fasteners

1. Insert the grating fastener into the fastener guide.
   
2. Drive the grating fastener through the grating into the supporting steel.
   
3. Follow the instructions in the installation instructions of the fastener.
   

Resetting the cleaning indicator

• Press the operating button at the display and hold it down for 10-12 seconds.
  
  • The cleaning indicator is reset.
    

Fastening tool jams and does not extend

1. Keep the fastening tool pressed against the work surface for at least 10 seconds and trigger the fastening tool again.
   
2. Lift the fastening tool away from the working surface.
   
   • Be sure not to point it toward yourself or other persons!
     
3. Try to pull the fastener guide to its initial position by hand.
   
   • Take your hand off the trigger and do not hold your hand in front of the muzzle!
     
4. Immediately pull the cartridge strip out of the fastening tool.
   
   • If the cartridge strip cannot be removed:
     
     • Allow the fastening tool to cool down at a safe location under observation.
       
     • At all times, make sure that the fastening tool is not pointing toward you or anyone else.
       
     • Contact Hilti Service.
       
5. Service the tool.
   

Cartridge does not fire when fastening tool is above operating temperature

At all times, make sure that the fastening tool is not pointing toward you or anyone else!

1. Keep the fastening tool pressed against the work surface for at least 10 seconds and trigger the fastening tool again.
   
2. If the cartridge still does not fire, wait for 10 seconds and then lift the fastening tool away from the work surface.
   
3. Immediately pull the cartridge strip out of the fastening tool.
   
   • If the cartridge strip cannot be removed:
     
     • Allow the fastening tool to cool down at a safe location under observation.
       
     • Contact Hilti Service.
       
4. Service the tool.
   
5. Move the cartridge to a safe location.
   
6. Dispose of the cartridges that have not fired.
   
   • Comply with the locally applicable disposal regulations.
     
7. Allow the fastening tool to cool down and resume work with a new cartridge strip.
   

The cartridge does not fire when the fastening tool is at operating temperature

1. Stop using the tool immediately.
   
2. Unload the fastening tool (cartridges and fasteners) and dismantle the fastening tool.
   
3. Check that you are using the correct combination of fastener guides, piston, fasteners and cartridge.
   
4. Check the buffer, piston and fastener guides for wear; replace the components as necessary.
   
5. Clean and oil the fastening tool.
   
   • If the problem persists after the measures described above have been taken, further use of the fastening tool is not permissible.
     
   • Have the fastening tool checked and, if necessary, repaired by Hilti Service.
     
   Dirt and residues build up in the tool under normal operating conditions and functional parts are also subject to wear.
   Service the tool at regular intervals. Check the piston and buffer daily if the fastening tool is used intensively, or at the latest after every 2500 to 3000 fasteners. The interval corresponds to the regular cleaning cycle of the fastening tool. The service and cleaning cycles are based on typical tool use.
   The fastener counter shows how many fasteners have been driven since the cleaning indicator was last reset. One segment stands for 500 fasteners driven.
   When 30,000 fasteners have been driven, have the tool serviced by Hilti Service.
   

Care of the fastening tool

For cleaning, use only the cleaning accessories supplied by Hilti , or material of equivalent quality. Do not, under any circumstances, use spray cleaning equipment, compressed air, high-pressure cleaning equipment, solvents or water for cleaning.

• Clean the exterior of the fastening tool with a slightly damp cloth at regular intervals.
  

Maintenance

1. Regularly check all external parts of the fastening tool for damage.
   
2. Regularly check all operating controls to ensure that they work properly.
   
3. Use the fastening tool only with suitable cartridges and the recommended energy setting.
   
   • Use of the wrong cartridges or excessively high power settings can lead to premature failure of the fastening tool.
     

Servicing the tool

Service the tool in the following situations:

1. If energy fluctuations occur (evidenced by irregularities in fastener penetration depth).
   
2. If cartridge misfires occur (the cartridge is not fired).
   
3. If the tool becomes noticeably less easy to operate.
   
   • If the required contact pressure increases noticeably.
     
   • If the trigger resistance increases.
     
   • If the selector ring for driving energy has become difficult to turn.
     
   • If the cartridge strip is difficult to remove.
     
4. If the fastener counter indicates that a tool service is necessary.
   

Disassembling the fastening tool

1. Press and hold down the release button of the fastener guide.
   
2. Turn the fastener guide counter-clockwise as far as it will go.
   
3. Pull out the fastener guide with piston.
   
4. Pull the piston out of the fastener guide.
   
5. Remove the buffer by bending it sharply out of the fastener guide.
   
6. Press and hold down the release button for the selector ring for driving energy.
   
7. Turn the selector ring for driving energy counter-clockwise to the removal position.
   
8. Pull the exhaust gas piston return unit out of the housing.
   

Checking piston and buffer

1. The piston must be replaced in the following cases:
   
   • The piston is broken.
     
   • The piston is badly worn or chipped (e.g. a segment of more than 90° of the circumferential ring-shaped elevation at the piston tip broken away)
     
   • The piston rings are cracked or missing.
     
   • The piston is bent (check by rolling the piston on a smooth, flat surface).
     
2. The buffer must be replaced in the following cases:
   
   • The metal ring of the buffer is loose or broken.
     
   • The buffer no longer holds on the fastener guide.
     
   • The rubber is badly worn at certain points under the metal ring.
     

Cleaning and oiling fastening tool

1. Unload the fastening tool (cartridges and fasteners) and dismantle the fastening tool.
   
2. Use the flat brush supplied for the purpose to clean the piston rings until the piston rings move freely.
   
3. Use the flat brush to clean the lock of the fastener guide.
   
4. Oil the lock of the fastener guide and then wipe the lock lightly with a cloth.
   
5. Use the large round brush supplied for the purpose to clean the inside of the exhaust gas piston return unit.
   
6. Oil the lock of the exhaust gas piston return unit on the inside.
   
7. Use the flat brush to clean the back end of the exhaust gas piston return unit and the pins.
   
8. Oil the pins and then wipe the pins lightly with a cloth.
   
9. Use the tapered brush supplied for the purpose to clean the tapered cartridge chamber.
   
10. Clean the cartridge barrel with the cleaning rod supplied for the purpose.
    

Final check of the fastening tool

1. After carrying out care and maintenance, check that all protective and safety devices are fitted and that they function faultlessly.
   
2. Reset the cleaning indicator.
   

Problems with fasteners in steel

Problems with the cartridges