HILTI DX 9-ENP Powder-Actuated Decking Tool Instruction Manual

DX 9-ENP Powder-Actuated Decking Tool
Instruction Manual

DX 9-ENP Powder-Actuated Decking Tool

![HILTI DX 9 ENP Powder Actuated Decking Tool

• fig 3](https://manuals.plus/wp-content/uploads/2023/05/HILTI-DX-9-ENP- Powder-Actuated-Decking-Tool-fig-3.jpg)

Original operating instructions

Information about the documentation
1.1 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.

1.2 Explanation of symbols used
1.2.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The following signal words are used:
DANGER
DANGER !
▶ Draws attention to imminent danger that will lead to serious personal injury or fatality.
WARNING
WARNING !
▶  Draws attention to a potential threat of danger that can lead to serious injury or fatality.
CAUTION
CAUTION !
▶  Draws attention to a potentially dangerous situation that could lead to personal injury or damage to the equipment or other property.
1.2.2 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

1.2.3 Symbols in illustrations

2| These numbers refer to the illustrations at the beginning of these operating instructions.
---|---
3| The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text.
11| 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.

1.3 Product-dependent symbols
1.3.1 Symbols on the product
The following symbols are used on the product:

| Warning: hot surface
---|---

1.3.2 “Must do” symbols
The following “must do” symbols are used on the product:

| Wear protective gloves
---|---
****| General symbol for “must do”
| Read the operating instructions
| Wear a hard hat
| Wear eye protection
| Wear ear protection

1.4 Product information
HILTL 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

Safety

2.1 Safety instructions
2.1.1 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 → page 14.
▶ 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. → page 8
▶ Use the fastening tool only for the applications defined in the section headed “Intended use” → page 4.
▶ 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! → page 11
▶ 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 → page 13.
▶ 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” → page 5).
▶ 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.
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.

Description

3.1 Overview of the product 1

3.2 Intended use
The product described is a fastening tool designed to drive special fasteners for fastening trapezoidal profile metal sheets to steel beams.
3.3 Possible misuse
The fastening tool may not be operated in atmospheres or environments where there is a risk of fire or explosion.
The fastening tool may not be used with cartridges and fasteners other than those approved for use with this fastening tool.
The fasteners may not be driven into materials other than structural steel and, in particular, not into hardened steel, brittle steel, cast iron and spring steel.
3.4 Safety devices
The fastening tool features a 5-way safety system for the safety of the operator and any bystanders.
Piston principle
The energy from the propellant charge is transferred to a piston, the accelerated mass of which drives the nail into the base material.
Through use of the piston principle, the tool is classed 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.
Drop-firing safety device
The drop-firing safety device is the result of coupling the firing mechanism with the cocking movement.
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 driven.
Contact pressure safety device
The contact pressure safety device requires application by the operator of a contact pressure of at least 250 N, so a nail can be driven only when the tool is pressed fully against a firm surface with this or a higher force.
Unintentional firing safety device
The tool is equipped with an unintentional firing safety device. It prevents the tool from firing if the triggers are first pulled and the tool then pressed against the work surface. The tool can be fired only when it is first pressed fully against a firm surface and the triggers subsequently pulled.
3.5 Minimum distances and edge distances
You must always observe certain minimum distances and spacing when driving fasteners. They can differ, depending on the product.
Comply with the instructions for use in the operating instructions of the fastener used, in the Hilti Direct Fastening Technology Manual or the corresponding local Hilti ‘Technical Guide to Fastening Technology’.
3.6 Service indicator
The service indicator display incorporated in the grip consists of the display plus the Bluetooth and reset buttons.
The display indicates the temperature of the fastening tool with a view to allowing the operator to avoid overheating problems by adjusting the speed of use of the tool.
The service indicator display counts the number of fasteners driven and when the preconfigured limit is reached it indicates that cleaning or maintenance of the tool is due.
Using Bluetooth, the data shown in the service indicator display, including the number of fasteners driven and other information (e.g. the serial number of the tool, the number of fasteners driven since the last tool service, etc.), can be read by the Hilti Connect smartphone app.
After cleaning, the number of fasteners driven before cleaning is again due can be reset by pressing the reset button.
The service indicator and the built-in counter for the number of nails that can be driven before the next service is due are reset by Hilti Service when the tool is serviced.
The smartphone app can be used to activate demo mode in which the various messages indicated by the service interface over a period of 48 fasteners driven, up to and including the need for maintenance, are presented.
The smartphone app can also be used to deactivate demo mode. Demo mode is automatically deactivated after a period of 15 minutes.
Demo mode does not indicate the actual status of the tool.
The number of fasteners driven is also recorded while in demo mode, so the total counted is always the actual value.
3.7 Information shown on the display
Service indicator display

1. Upper area
2. Middle area
3. Lower area

Information shown at the top of the display

should be serviced by Hilti Service.

Information shown in the middle of the display
WARNING
Risk of injury due to self-firing caused by excessive temperatures! Fragmentation due to cartridge sulfuring can result in serious injury or death.
▶ Observe the indicators in the display and the corresponding explanations in the operating instructions.
▶ Remove the cartridges from the tool immediately before breaks between working.
▶ If the cartridges cannot be removed from the tool, lay the tool down and make sure that all persons keep a safe distance away from the tool (3 meters) until the pointer on the temperature indicator has moved all the way to the left. Notify Hilti Service immediately.
Tool temperature

case the tool temperature is within the normal range.
High| The temperature of the tool is high. Risk of self-firing! Reduce the fastener driving rate so that the temperature can return to the middle of the range.
Too high| The temperature of the tool is extremely high. Risk of self- firing! A warning symbol indicates that the cartridges can fire prematurely and the fastener strips can melt if the cartridge strip or the fastener strips do not move while they are inside the tool.
• Temporarily stop working with the product. Wait until tool temperature has returned to normal before resuming work.

Information shown in the lower part of the display

interval until the tool needs to be cleaned again.
In this case, cleaning will not be necessary for some time.
| The 7 segments shown indicate that cleaning will be necessary shortly.
| The max. number of fasteners driven has been reached. The tool must be cleaned.
| The black square at the lower edge on the right indicates that demo mode is active. In this case, the information in the display does not reflect the actual status of the tool.
The Hilti Connect smartphone app can be used to deactivate the demo mode. Demo mode is automatically deactivated after a  period of 15 minutes.

3.8 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.
3.8.1 Intended use
This product is equipped with a Bluetooth ®
Low Energy Module which enables the status checking of a tool and the transfer of settings and data based on Bluetooth ® wireless technology, a data transfer system by which the two Bluetooth-enabled products can communicate with each other over a short distance. This product is designed to enable communication and data transfers between smart phones and Hilti gateway. The tool can submit data attributes such as location of the receiving device, runtime, total application count, application count during interval and timestamp of transfer. Information about the connectivity functions offered can be found in the respective Hilti application (app) or in the operating instructions of the tool you are using.
3.8.2 Data transmission via Bluetooth ®
The data transmission interval can vary depending on the available power source of the tool and the status of the tool. The signal range may vary greatly depending on external conditions, including the receiving device used. The Bluetooth® range may be significantly weaker 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 tool is detected.
If the tool 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 tool.
3.8.3 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).
   You will require a user account on the corresponding app store to do this.

2. After starting the app for the first time, please 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 tool to the mobile terminal device.
   First, fully complete the tutorial for the app. This will give you a better overview of how the connection is made and how the connectivity functions are used.

3.9 Requirements to be met by cartridges
WARNING
Risk of injury by unexpected explosion! Use of cartridges that do not meet the minimum safety requirements can lead to a build-up of unburned powder. A sudden explosion and severe injuries to the operator and bystanders can result.
▶ Use only cartridges that meet the minimum safety requirements of your local statutory regulations!
▶ Adhere to the maintenance intervals as stated and have the fastening tool cleaned regularly by Hilti Service!
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

3.10 Items supplied
Fastening tool, toolbox, cleaning set, scraper, ramrod, Hilti lubricant spray, operating instructions.
Other system products approved for use with this product can be found at your local Hilti Store or at: www.hilti.group

Technical data

4.1 Technical data

| DX 9-ENP
---|---
Weight| 27.6 lb (12.5 kg)
Dimensions (L x W x H)| 38.8 in x 14.4 in x 6.9 in
(985 mm x 365 mm x 175 mm)
Magazine capacity| 40 nails / 40 cartridges
Suitable cartridges| 6.8/18 M40 red, black, blue
Suitable fasteners| X-ENP 19
Fastener driving rate| 0.333 Hz (1,200 rev/h)
Thickness of the supporting steel| a 0.2 in ca 6 mm)
Compression stroke| 3.5 in (89 mm)
Contact pressure| a 56 lb, … < 74 lb, ca 250 N … < 330 N)
Application temperature (ambient temperature)| 5 °F … 122 °F (-15 °C … 50 °C)

4.2 Noise information
The noise values listed were determined under the following conditions:
General conditions for noise measurements

X-ENP-19 L15MXR

Noise information in accordance with EN 15895

4.3 Vibration
The vibration value that must be specified in accordance with 2006/42/EC does not exceed 2,5 m/s².

 Preparations at the workplace

5.1 Establishing the position of the fasteners
To avoid incorrectly driven fasteners, proceed as follows:
▶ Each time you lay a metal sheet in position on the steel beams, use a water- resistant pen to mark the area in which fasteners can be driven.
Do this each time, for each individual metal sheet. It is not sufficient to simply mark the ends of the beam and then draw a straight line between these points as the supporting beams may be distorted, i.e. curved.
5.2 Checking that the tool is ready for use
This check should always be carried out immediately before use of the fastening tool and after reassembling the tool after cleaning or after a routine check of the condition of the piston and piston stopper.

1. Make sure that there are no cartridge strips and no nail strips in the tool.

2. Check the fastening tool for visible signs of damage, especially to the components shown in the illustration.
   Result
   Visible signs of damage are found
   ▶ Have the tool repaired by Hilti Service. 1. Catch
   2. Pressure pin
   3. Slider
   4. Nosepiece

3.  Press the tool against the working surface until a definite resistance is felt and then check the position of the pressure pin.
   Result 1 / 2
   The pressure pin is not pressed down – the spring on the pressure pin is not compressed. The tool has detected no nail and thus cannot be pressed against the working surface. The tool is working correctly.
   Result 2 / 2
   The pressure pin is pressed all the way down, the spring on the pressure pin is compressed and a click is heard when the trigger is pressed.
   The slider may be jammed. The tool should be cleaned again and the test repeated. If the problem
   persists, the tool must be repaired by Hilti Service.

4. Release any pressure on the tool.

5. Load the nail strips → page 10, but do not load any cartridge strips.

6. Press the tool against the working surface again and check whether a click can be heard when the trigger is pulled.
   b
   The tool cannot be pressed fully against the working surface – triggering is not possible.
   ▶ Check that the rotating sleeve is closed. If necessary, turn the rotating sleeve to the left as far as it will go.
   ▶ Check the position of the slider. If the slider has not clearly moved to the left, have the tool repaired by Hilti Service.
   Result 2 / 3
   The tool can be pressed fully against the working surface (the spring on the pressure pin is fully compressed) and a click is heard when the trigger is pressed.
   The nail detector in the tool is working correctly and the tool can be used.
   Result 3 / 3
   The tool can be pressed fully against the working surface (the spring on the pressure pin is fully compressed) but no click is heard when the trigger is pressed.
   ▶ Have the tool repaired by Hilti Service.

5.3 Loading fastener strips 2

1. Insert 4 fastener strips in the magazine from above.
   Materials
   Fasteners X­ENP 19

2. Press the last fastener strip in until it lies flush with the magazine.

5.4 Loading cartridge strips 3

1. Insert the cartridge strips from above in the cartridge loading channel.
   Materials
   6.8/18 M40 red, black, blue cartridge (see the cartridge recommendation in the instructions for use of the fasteners)

2. Press the cartridge strip into the cartridge loading channel until it lies flush with the top edge of the cartridge loading channel.

5.5 Opening the rotating sleeve 4
If the fastening tool jams, you can open the cover and expose the mechanism in order to rectify the possible cause.
▶ Turn the rotating sleeve as far as it will go. Use the scraper or some other tool as an aid, if necessary.
5.6 Closing the rotating sleeve 5
If the rotating sleeve is not closed, it is not possible to press the fastening tool fully against the working surface and, accordingly, the tool cannot be operated.

1. Check whether the slot in the front of the tool is closed.
   ▶ The slot is not fully closed.

2. Turn the rotating sleeve as far as it will go. Use the scraper or some other tool as an aid, if necessary.

5.7 Installing protective cap 6
Before beginning work, check the protective cap for damage.
CAUTION
Risk of burns! Parts of the tool may be very hot after the tool has been in use.
▶ If it is necessary to carry out maintenance without first allowing the tool to cool down, it is essential that protective gloves are worn.

1. Remove the magazine and cartridges.
2. Introduce the front nose into the front mounting adapter.
3. Introduce the nose with T-head into the rear mounting adapter.
4. Repeat the procedure on the opposite side.
5. Check that all the noses are correctly seated in their corresponding mounting adapters.

Operation

WARNING
Risk of injury by accidental triggering! A loaded fastening tool can be made ready to fire at any time. Accidental triggering can endanger you and others.
▶ Always unload the fastening tool (cartridges and fasteners) whenever you interrupt work with the fastening tool.
▶ Before all maintenance, cleaning and setup activities, always make sure that there are no cartridges and no fasteners in the fastening tool.
WARNING
Hazard due to hot surfaces! The fastening tool can become hot in use.
▶ Wear protective gloves.
If resistance is unusually high when you insert the cartridge strip, check whether the cartridge strip is compatible with this fastening tool.
Always use the protective cap for work that can produce flying splinters.
Observe the safety instructions and warnings in these operating instructions and on the product.
Safety-related instructions for use

body!
Pressing the nosepiece against a part of the body (a hand, for example) can make the fastening tool ready to fire. As a result, there would be the risk of a fastener being fired into a part of the body.
| Do not pull back the magazine or other fastener guides by hand!
Pulling the magazine back by hand can make the fastening tool ready to fire. As a result, there would be the risk of a fastener being fired into a part of the body.

6.1 Driving fasteners 7
CAUTION
Risk of injury! If the tool is extremely hot (see service indicator display) cartridges may explode due to the effect of the heat, causing flying fragments.
▶ Remove the cartridges from the tool immediately before breaks between working.
▶ If the cartridges cannot be removed from the tool, lay the tool down and make sure that all persons keep a safe distance away from the tool (3 meters) until the pointer on the temperature indicator has moved all the way to the left. Notify Hilti Service immediately.

1. Press the tool fully against the working surface at right angles.

2. Press the trigger buttons on the grip.
   If the tool does not fire, check that a cartridge strip has been loaded and that there are enough fasteners in the magazine.
   The fasteners are not transported when the magazine contains less than 15 fasteners. You must first insert additional nail strips in the magazine.

3. Position the tool at the point where the next fastener is to be driven and repeat the steps described. In doing so, observe the information shown in the display. → page 6
   Nail stand-off should be checked immediately after driving the first fasteners and subsequently at regular intervals so that the driving power of the tool can be set to the right value in order to ensure that fasteners are driven correctly.

6.2 Checking the nail stand-off

1. Use the test gauge to check the nail stand-off. Result 1 / 3
   • Nail stand-off is within the required range. The tool power setting is incorrect. The test is complete. Result 2 / 3
   • Nail stand-off is too high.
   ▶ Increase the power setting by turning the power regulation wheel to the next higher setting.
   ▶ If the power regulation wheel is already set to the highest value, use a more powerful cartridge type – if available.
   Result 3 / 3
   • Nail stand-off is too low.
   ▶ Reduce the power setting by turning the power regulation wheel to the next lower setting.
   ▶ If the power regulation wheel is already set to the lowest value, use a less powerful cartridge type – if available.

2. Drive another fastener.

3. Repeat the previously described steps until the correct nail stand-off is achieved.

6.3 Adjusting the power setting
▶ Turn the power regulation wheel to set the desired nail driving power.
▶ The current power setting is indicated.1. Power regulation wheel
2. Power setting indicator

6.4 Removing cartridges from the tool 8

1. Press the cartridge strips forward, as far as possible, in the direction of advance.
2. Pull the cartridge strips out of the tool at the cartridge strip exit aperture.

6.5 Removing fasteners from the tool 9
The fasteners can normally remain in the tool. It is not necessary to remove them, for example, when you are finished working with the tool.

1. Check that the cartridges have already been removed from the tool. → page 13

2. Stand the tool on its grip.

3. Press the red latch at the mouth of the magazine and allow the nail strips to slide back out of the magazine.

4. While pressing the catch, pull the nail strip out of the tool.
   ▶ If the nail strip does not project from the base plate, work through the sequence of steps below.

5. Stand the tool upright in the working position.

6. Press the stop.

7. Cycle the tool until the nail strip projects from the tool.

Care and maintenance

7.1 Check the piston and piston stopper and replace the parts if necessary 10
If a fastener is driven incorrectly, the piston may become jammed in the piston stopper. If the piston and piston stopper become fully seized in this way, these parts have reached the end of their service life. The tool cannot be cycled when in this state.
The condition of the piston and piston stopper must be checked at regular intervals and at least daily.

1. Disassemble the base plate. → page 14

2. Pull the piston out of the piston guide.

3. Pull the piston stopper out of the base plate (possibly with the aid of the piston).

4. Check the piston and piston stopper for damage. Check the piston for straightness by rolling it on a smooth surface.
   Never use a worn or damaged piston and do not tamper with or modify the piston. Observe the wear criteria applicable to important tool components, as listed in the  “Care and maintenance” section. → page 15
   Result
   If damage is found and/or if the piston is bent or jammed with the piston stopper
   ▶ Replace the piston and piston stopper as a set.

5. Pull out the catch and hold it in this position. Insert the piston, pushing it in until the tip of the piston no longer projects beyond the end of the tool, and then release the catch.

6. Insert the piston stopper (rubber part to the front) into the base plate.

7. Fit the base plate. → page 14

7.2 Disassembling the base plate 11
WARNING
Risk of injury! Cartridges in the tool could fire (explode).
▶ Check that all cartridges have been removed from the tool before carrying out the following tasks with the tool.
CAUTION
Risk of burns! Parts of the tool may be very hot after the tool has been in use.
▶ If it is necessary to carry out maintenance without first allowing the tool to cool down, it is essential that protective gloves are worn.

1. Stand the tool on its grip.
2. Press the magazine release button (red button) on the magazine and allow the magazine to slide down.
3. Rotate the base plate in a counter clockwise direction, until the connection is released.
4. Lift off the base plate.

7.3 Fitting the base plate 12

1. Make sure that the piston stopper is correctly fitted in the base plate and that the piston guide and the piston are correctly seated in the tool.
2. Press the base plate against the thread.
3. Rotate the base plate in a clockwise direction as far as it will go.
4. Rotate the base plate back slightly until it is in its starting position relative to the magazine.
5. Push the magazine back until it engages with the base plate.

7.4 Cleaning the fastening tool 13
WARNING
Risk of injury! Cartridges in the tool could fire (explode).
▶ Check that all cartridges have been removed from the tool before carrying out the following tasks with the tool.
CAUTION
Risk of burns! Parts of the tool may be very hot after the tool has been in use.
▶ If it is necessary to carry out maintenance without first allowing the tool to cool down, it is essential that protective gloves are worn.

1. Disassemble the base plate. → page 14

2. Pull the catch out and hold it in this position. Pull the piston out of the piston guide and then release the catch.

3. Pull the piston stopper out of the base plate. If necessary, use the piston to lever the piston stopper out of the base plate.

4. Pull the catch out and hold it in this position. Pull the piston guide upwards out of the tool and then release the catch.

5. Clean the inside of the tool. Then stand the tool upside down and tap it firmly with your hand so that the dirt falls out.

6. Use the large accessory wire brush to clean the surfaces of the piston guide (see marked area).

7. Use the small round brush to clean the cartridge chamber and the adjoining holes for the power regulation pin.

8. Use the narrow round brush to clean the cartridge guideway.

9. Use Hilti lubricant spray to lubricate the moving parts of the fastener strip guides.
   Use of other lubricants may damage the rubber parts, especially the piston stopper. Moreover, other lubricants may cause dust to adhere to parts of the tool resulting in a build-up of deposits.

10. Slide the piston guide into the tool from above, until the catch engages.

11.  Pull out the catch and hold it in this position. Insert the piston, pushing it in until the tip of the piston no longer projects beyond the end of the tool, and then release the catch.

12. Insert the piston stopper (rubber part to the front) into the base plate.

13. Fit the base plate. → page 14

14.  Press the reset button for at least 1 second to reset the counter for the number of fasteners driven until the next scheduled cleaning operation is due.

15. Check that the tool is ready for use. → page 9

7.5 Criteria for replacement of wear parts
Piston and piston stopper wear criteria

chipping at the tip / face of the piston.
| The piston has made a deep impression (3 mm or more) in the piston stopper.

Nosepiece wear criteria

Troubleshooting

8.1 Remedying malfunctions after misfiring
▶ Press the nose of the tool against the working surface and pull the trigger.
▶ A click is audible, but the cartridge does not fire.
▶ Lift the tool away from the working surface. When doing so, never point the tool toward yourself or other persons.
▶ Advance the cartridge strip manually to the next cartridge by pushing it by hand at the cartridge feed side or, alternatively, by pulling the cartridge strip through manually to the next cartridge at the cartridge strip exit side.
▶ Use up the remaining cartridges on the strip. The partly-used cartridge strip must then be removed and disposed of appropriately to prevent further use or misuse of any unfired cartridges.
8.2 Clearing the jammed tool
WARNING
Risk of explosion! Cartridges may fire (explode) if handled improperly.
▶ Do not use force to remove cartridges from the fastening tool or the magazine strip.

1. Press the tool vertically down on to a solid surface, pull the triggers and listen to the resulting noise.
   Result 1 / 2
   A cartridge is triggered or a clicking noise is clearly audible.
   ▶ There is now no triggerable cartridge in the cartridge magazine of the tool.
   ▶ Proceed to the next step in the troubleshooting routine.
   Result 2 / 2
   No cartridge is triggered and no clicking noise is audible. There might be a triggerable cartridge in the tool, but it did not trigger on account of a fault.
   ▶ ATTENTION! Make sure that the tool’s nail discharge muzzle is not pointing toward anyone.
   ▶ Avoid hard impacts on the tool.
   ▶ Proceed to the next step in the troubleshooting routine.

2. Press the nose of the tool in a few millimeters and open the rotating sleeve → page 11.
   ▶ The catch is now accessible and you can open the tool.

3. Pull the catch out and hold it in this position. If the too l does not open up by itself try pulling it open, without applying more than ordinary muscle power.
   ▶ ATTENTION! Make sure that the tool’s nail discharge muzzle is not pointing toward anyone.
   Result 1 / 2
   The tool can be pulled open.
   ▶ Proceed to the next step in the troubleshooting routine.
   Result 2 / 2
   The tool cannot be pulled open.
   ▶ Cease work and lay the tool down at a safe place.
   ▶ Make sure that the tool cannot be accessed by other persons.
   ▶ Notify Hilti Service immediately.

4. Remove the cartridges from the tool. → page 13

5. Disassemble the base plate. → page 14

6. Check the piston and piston brake and replace these parts if necessary. → page 14

7. Clean the fastening tool. → page 14

8. Close the rotating sleeve. → page 11

8.3 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.

the cartridge strip. Do not attempt to forcibly remove cartridges or the cartridge strip.
The tool is damaged.| Contact Hilti Service.
The cartridge strip cannot be removed.| The tool is damaged.| Contact Hilti Service.
The tool doesn’t fire.| Misfire| Remedy the malfunction. -. page 16
The cartridge strip is used up.| Remove the cartridge strip from the tool.
Insert a new cartridge strip.
There are less than 15 fasteners in the tool.| Load new fastener strips.
The tool is not adequately com- pressed.| Press the nose of the tool against the working surface again and pull the trigger.
Fastener transport malfunction.| Check that the fastener strips are free to move.
Remove any damaged or defective cartridge strips or strips containing damaged or defective fasteners.
The tool is clogged with dirt.| Clean the tool.
The cartridges are unsuitable.| Contact Hilti Service.
Do not attempt to forcibly remove cartridges or the cartridge strip.
The tool is damaged.| Contact Hilti Service.
Insufficient nail stand-off| The fastener missed the beam.| Mark the position of the beam and drive another fastener.
Driving power is too high.| Reduce the driving power (adjust the power regulation) or use less powerful cartridges – if available.
The piston is worn.| Change the piston and piston stopper together (as a set).
Trouble or fault| Possible cause| Action to be taken
---|---|---
Insufficient nail stand-off| The wrong piston has been fitted.| •Check that the right piston / fastener combination is used.
Space between metal sheet and profile.| Space between metal sheet and profile| •Avoid gaps between profile and beam, or secure the beam on the correct side.
Metal sheet is deformed| Beam missing as sub-structure| •Mark the beam at the correct position before positioning the power tool for driving the fastener.
Excessive nail stand-off| The fastener is too close to the edge of the beam.| •Mark the position of the beam
and drive another fastener.
Driving power is too low.| •Increase the driving power (adjust the power regulation) or use more powerful cartridges – if available.
The tool is clogged with dirt.| •Clean the tool.
The piston is broken.| •Change the piston and piston
stopper together (as a set).
The tool is damaged.| •Contact Hilti Service.
Shear breakages of fasteners| The fastener was driven into the rib of the beam.| •Mark the position of the rib of the beam and then drive another fastener alongside.
The supporting material is thicker and/or of higher strength| •Increase the driving power (adjust the power regulation) or use more powerful cartridges -if available.
•If the fastener cannot be driven correctly even with the tool set to the highest power setting. the application is unsuitable. Contact Hilti Service.
The tool remains compressed (does not extend when pres- sure is released).| The piston jams in the piston stop- per.| •Turn the rotating sleeve and change the piston and piston stopper together (as a set). — page 14
The tool is clogged with dirt.| •Clean the tool.
The piston guide is dogged with dirt.| •If necessary, tum the rotating sleeve, disassemble the base plate — page 14 and clean the piston guide — page 14.
No fastener is driven.| The piston wasn’t fitted.| •Fit the piston in the tool.
The piston is broken.| •Change the piston and piston
stopper together (as a set).
The fastener guide is clogged with dirt.| •Clean the base plate and the parts attached to it using the brushes intended for this purpose.
Trouble or fault| Possible cause| Action to be taken
---|---|---
No fastener is driven.| Fastener or fasteners jammed in the fastener guide| ►First remove the cartridge strip and then remove the jammed fastener.
►Avoid shear breakages of the fasteners. Avoid missing the beam. It may be necessary to mark the position of the beam better in future.
Base plate cannot be screwed fully into place.| The piston stopper is fitted the wrong way round| ►Unscrew the base plate, insert the piston stopper the right way round and screw the base plate on again -‘ page 14.
The piston guide is clogged with dirt behind the connecting thread.| ►Clean the piston guide.
►Lubricate the connecting thread.
The tool cannot be pressed fully against the working sur- face| The rotating sleeve is not fully closed.| ►Close the rotating sleeve. -, page 11
The nail detector is jammed.| ►Clean the base plate and remove all foreign objects. Take care to ensure adequate lubrication of the fastener strip guides with Hilti lubricant spray.
Part of the nail detector is broken.| ►Check for correct operation of the nail detector by checking that the tool is ready for use -. page 9.
No fasteners loaded in the tool| ►Load the tool with fasteners.

Disposal

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.
Manufacturer’s warranty
▶ Please contact your local Hilti representative if you have questions about the warranty conditions.
FCC statement (applicable in US) / IC statement (applicable in Canada)
This device complies with Part 15 of the FCC Rules and RSS-210 of lC. Operation is subject to the following two conditions:

1. this device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation.

 Further information

For more information on operation, technology, environment and recycling, follow this link: qr.hilti.com/manual?id=2194400&id=2194029
This link is also to be found at the end of the documentation, in the form of a QR code.

qr.hilti.com/manual?id=2194400 &id=2194029
Hilti Corporation LI-9494 Schaan
Tel.:+423 234 21 11 Fax:+423 234 29 65
www.hilti.com https://hilti.to/ontrackapp

References

• HILTI Country selector
• HILTI Country selector

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