Operating instructions Automatic Spray Gun A-12. T-Dok-042-GB-Rev Translation of the original operating instructions

Transcription

1 GB Operating instructions Automatic Spray Gun A-12 T-Dok-042-GB-Rev Translation of the original operating instructions

2 Thank you for selecting a Krautzberger product. This product has been manufactured following state-of-the-art manufacturing procedures and extensive quality assurance measures. We promise you a product of the highest quality. If you have questions, requests or suggestions, please contact us. We are always glad to assist you. Information about the operating manual This manual provides important information on how to work with the device safely and efficiently. The manual is part of the device, must always be kept in the device's direct proximity and should be available to the personnel at all times. The personnel must have read and understood this manual before starting any work. Compliance with all specified safety information and instructions is a basic requirement for safe working conditions. In addition, the local occupational safety regulations and general safety rules apply for the area of application of the device. Due to optional finishing variants, it is possible that the figures shown in this operating manual deviate from your device. Information about explosion protection Many of our competitors have been marking their products with the Ex symbol as a matter of principle for some time now. At Krautzberger we do not do this. We engineer and manufacture our products in line with currently applicable directives. If the labelling on the product is required, it is affixed to the product as the result of the necessary analysis of ignition sources. If no labelling is affixed, the analysis of ignition sources and previous experience with the assessment of the suitability of products for use in a potentially explosive area have shown that the product described in this operating manual does not represent a potential source of ignition, with the exception of electrostatic charge. Taking into account the potential equalisation (provided by proper earth connection), the use in an area at risk for explosions is permitted in accordance with the current valid directives. GB 2 mail@krautzberger.com,

3 Automatic Spray Gun A-12 ENGLISH Table of contents 1 Function and identification Function Identification Safety and responsibility Labelling of the safety information Safety information in operating instructions Personnel requirements Personal safety equipment and clothing Responsibility of the system owner Intended use General safety information Transport and storage Transport Storage Unpacking Overview Installation General installation information Dimensions Mounting the automatic spray guns Connection scheme Connecting the automatic spray gun Checking connections Commissioning General Information about the commissioning Operation Adjusting the spray pattern Setting the zero point of the needle stroke setting Operation breaks Maintenance Maintenance schedule Cleaning spray guns Changing the air and fluid nozzles Changing the fluid needle Changing needle packing Faults GB 3

4 Operating instructions T-Dok-042-GB-Rev.2 9 Spare parts Spare parts Accessories Disposal Technical data Dimensions and weight General specifications Tightening torques Declaration of incorporation Notes Index GB 4 mail@krautzberger.com,

5 Automatic Spray Gun A-12 ENGLISH 1 Function and identification 1.1 Function Automatic spray guns are used for the automatic coating/marking of surfaces dosing of fluids placement of adhesive or marking points Typical spray fluids are paints, dyes, adhesives, glazes, enamels, debonding agents, etc. The spray fluid is fed into the automatic spray gun under pressure. This pressure is typically generated by pumps or pressure containers. The automatic spray gun is controlled via compressed air. Upon opening, the control piston charged with compressed air initially opens the air nozzle and then with a short delay the fluid nozzle of the spray gun. Upon closing, initially the fluid nozzle and then the air nozzle is closed in order to prevent a subsequent dripping of the spray fluid. For the precise control of the automatic spray gun, electrically-activated solenoid valves can be used, for example. Switching times of 60 ms can be achieved this way. The spray fluid is atomised using compressed air. The geometry of the spray jet and the sprayed quantity of the spray fluid can be adjusted with the following measures: Selection of the air and fluid nozzle Changing of the atomisation air pressure Changing of the spray fluid pressure Adjustment of the needle stroke on the regulator of the automatic spray gun. The automatic spray gun also features the following additional characteristics: Transition part only in anodised aluminium or stainless steel Transition part with lower fluid connection or simple fluid connection or with circulation connections Main element with flat jet regulator or with flat and round jet regulator 1.2 Identification Type Weight aluminium / stainless steel Length/width/h\ (mm) Product number A-12 (HVLP)* 0.75 kg / 0.96 kg max. 178 / max. 142 / * HVLP = High Volume, Low Pressure Further information can be found in ( Ä Chapter 12 Technical data on page 41) GB 5

6 Operating instructions T-Dok-042-GB-Rev.2 2 Safety and responsibility 2.1 Labelling of the safety information This manual uses symbols to identify safety information. The safety information is preceded by signal words that indicate the severity of the hazard. DANGER! This combination of symbol and signal word indicates an immediate dangerous situation which causes death or severe injuries if it is not averted. WARNING! This combination of symbol and signal word indicates a possibly dangerous situation which can cause death or severe injuries if it is not averted. CAUTION! This combination of symbol and signal word indicates a possibly dangerous situation which can cause slight injuries if it is not averted. NOTICE! This combination of symbol and signal word indicates a possibly dangerous situation which can cause property and environmental damage if it is not averted. This symbol highlights useful tips and recommendations as well as information for efficient and fault-free operation. ENVIRONMENT! This combination of symbol and signal word points out potential hazards for the environment. GB 6 mail@krautzberger.com,

7 Automatic Spray Gun A-12 ENGLISH 2.2 Safety information in operating instructions Safety information can refer to specific individual operating instructions. Such safety information is embedded in the operating instructions so that they don't disrupt the reading flow during the execution of the action. The signal words described above are used. Example: 1. Loosen screw. 2. CAUTION! Pinching hazard at the cover! Carefully close cover. 3. Tighten screw. 2.3 Personnel requirements WARNING! Risk of injury in case of insufficient qualification of the personnel! The system owner of the system/device is responsible for adhering to the qualifications. If unqualified personnel carries out work on the device or steps into the danger zone of the device, hazards arise which may cause severe injuries and significant material damage. All work must only be carried out by respectively qualified personnel. Unqualified personnel must be kept away from the hazard areas. This manual identifies the qualifications of the personnel for the different scopes of work as listed below: Qualified personnel Due to their specialised professional training, knowledge, and experience as well as knowledge of the industry-specific standards and regulations, qualified personnel are in a position to perform assigned tasks and to identify and avert potential risks on their own. Only persons who can be expected to perform their tasks reliably are permitted as personnel. Persons whose reaction capability is impaired, e.g. through drugs, alcohol or medication are not permitted. When selecting the personnel, the stipulations regarding age and occupation that apply at the location must be observed GB 7

8 Operating instructions T-Dok-042-GB-Rev.2 Unauthorized persons WARNING! Risk of fatal injury for unauthorized person through hazards in the hazard zone and work area! Unauthorized persons, who do not fulfil the requirements described herein do not know the dangers in the work area. Unauthorized persons are therefore subject to a risk of serious injury including death. Keep unauthorized persons away from hazard zone and work area. If in doubt, address persons and tell them to leave the hazard zone and work area. Discontinue the work as long as unauthorized persons are present in the hazard zone and the work area. 2.4 Personal safety equipment and clothing Personal safety equipment is used to protect persons from impacts on safety and health at work. The personnel must wear personal safety equipment while carrying out the various tasks and while working with the device. The individual sections of this manual will indicate the personal safety equipment separately. Description of the personal safety equipment and clothing The personal safety equipment and clothing is described below: Ear protection Ear protection provides protection against hearing damage. Light respiratory protection The light respiratory protection is used as a protection against hazardous dusts. GB 8 mail@krautzberger.com,

9 Automatic Spray Gun A-12 ENGLISH Protective gloves Protective gloves protect hands from friction, abrasion, puncture wounds, or deeper injuries, as well as from contact with hot surfaces. Safety goggles Safety goggles are used to protect the eyes from flying components and splashes of liquid. 2.5 Responsibility of the system owner System owner The system owner is the person, who directly operates the device for commercial or economical purposes or who allows a third party to use/apply it and who is responsible for the legal product responsibility for the protection of the user, the personnel or third parties. System owner responsibilities The device is used in a commercial environment. The system owner of the device is therefore subject to the obligations as stipulated by the Occupational Health and Safety Act. In addition to the safety information in this manual, the country-specific safety, accident prevention guidelines and environmental protection regulations, applicable at the site of implementation must be adhered to. The following shall apply in particular: The system owner must familiarize himself with the applicable occupational safety regulations and also conduct a risk assessment to determine risks that may arise due to the specific working conditions at the place of use of the device. The risk assessment must be implemented in the form of operating instructions for operating the device. The system owner must check throughout the entire implementation period of the device, whether the work instructions that the owner has created satisfy current legislation and must adapt the instructions if necessary. The system owner must clearly regulate and specify responsibilities for installation, operation, repair of malfunctions, maintenance, and cleaning. The system owner must ensure that all employees, who handle the device, have read and understood this manual. In addition, the system owner must train personnel at regular intervals and inform the personnel of the hazards. The system owner must provide the personnel with the necessary protective gear and make the wearing of the necessary protective gear mandatory GB 9

10 Operating instructions T-Dok-042-GB-Rev.2 Furthermore, the system owner is responsible for making sure that the device is always in perfect technical condition. Therefore, the following applies: The system owner must ensure that the maintenance intervals described in this operating manual are adhered to. The system owner must have all safety equipment checked regularly for functionality and completeness. 2.6 Intended use The automatic spray gun serves the purpose of automatic coating of metal, plastic, ceramic, wood, as well as other suitable surfaces, dosing of fluids, placement of adhesive and marking points. Typical coating materials include paints, dyes, water-soluble paints, adhesives, glazes, enamels, debonding agents etc. The automatic spray gun can be operated both as an independent device as well as in a larger system (e.g. as a component of a fully-automatic coating system as well as a spray robot). Intended use also includes adherence to all the specifications in this manual. Any use beyond the intended use or any other use constitutes improper use. WARNING! Danger due to improper use! Improper use of the automatic spray gun can cause dangerous situations. Only carry out the installation and commissioning according to the steps described in this operating manual. Make sure that the utilised hose lines fulfil the requirements with respect to pressure, chemical and mechanical loads. Always observe the applicable country-specific safety, accident prevention, occupational safety, and environmental protection regulations for the area of use for the automatic spray gun. Do not use sharply abrasive, chemically aggressive, very hot or very cold spray media without first consulting with and receiving approval from Krautzberger GmbH. Adhere to the spray media manufacturer's safety data sheets. Only use the manufacturer's original spare parts. Only operate the automatic spray gun after proper fastening on a suitable carrier construction. Do not hold the automatic spray gun in your hand during operation. Only operate the automatic spray gun while adhering to the values specified in the ( Ä Chapter 12 Technical data on page 41). Make sure that the connected compressed air is oil-free and free of solid matter. Operate the automatic spray gun with processed, dried compressed air (air quality pursuant to DIN ISO : grade 4). Never point the compressed air at living beings. Do not operate the automatic spray gun in areas that are at risk for explosions. No claims of any type can be asserted due to damage resulting from improper use. GB 10 mail@krautzberger.com,

11 Automatic Spray Gun A-12 ENGLISH 2.7 General safety information WARNING! Life threatening risk of injury or property damage through the application of hazardous media! The application of hazardous media can lead to death, serious injuries or property damage. Ensure the resistance of the machine against the medium that is to be applied. Always adhere to the safety data sheet of the medium that is to be applied. WARNING! Risk of injury through the use of incorrect spare parts! The use of incorrect or defective spare parts can cause risks for the personnel as well as damage, malfunctions or complete failure. Only use original spare parts from Krautzberger or spare parts that have been approved by Krautzberger. In case of questions, always contact our service department. CAUTION! Risk of injury through compressed air! Uncontrolled leaks of compressed air can lead to serious injuries! Prior to any work on the device, all compressed-air lines must be closed and bleed if necessary. WARNING! Sound pressure level Depending on the operating conditions, the sound pressure of the device may cause hearing damage. Take suitable action to reduce the impact of the existing sound pressure level. The owner is responsible for the type and implementation of suitable measures, which may depend on the local conditions GB 11

12 Operating instructions T-Dok-042-GB-Rev.2 NOTICE! Property damage due to incorrect installation Incorrect installation can lead to property damage. Check all lines and machines for a tight seat prior to commissioning. Outdoor operation and operation in exterior areas! Use suitable measures to protect the device during the operation from environmental impacts in an exterior area through: Moisture UV radiation Frost, etc. ENVIRONMENT! Environmental hazard due to incorrect disposal! Incorrect disposal may cause environmental hazards. After the useful life of the device has been exhausted, dispose of it via the commercial waste. Properly dispose of potential spray fluid residue separately from the device. If in doubt, obtain information about environmentally-appropriate disposal with the local municipalities or specialized disposal companies. GB 12 mail@krautzberger.com,

13 Automatic Spray Gun A-12 ENGLISH 3 Transport and storage 3.1 Transport The automatic spray gun is protected by cardboard packaging. The cardboard packaging can be reused for storage. 3.2 Storage Store packages subject to these conditions: Do not store outside. Dry and dust-free storage. Keep away from any aggressive media. Protect from UV radiation. Avoid mechanical shocks. Storage temperature: 5 to 35 C. Relative atmospheric humidity: max. 60%. For storage for longer than 3 months, check the general condition of all parts of the packaging on a regular basis. If necessary, refresh or renew the conservation. It is possible that there are notes on the packing pieces concerning the storage that extend beyond the requirements listed here. Follow those accordingly. 3.3 Unpacking Immediately upon receipt check the delivery for completeness and damage from transport. In the event of visible exterior transport damage, proceed as follows: Do not accept delivery or only do so with reservations. Record scope of damage on the transport documents or on the bill of delivery of the shipping company. Initiate complaint. Report any damage as soon as it has been detected. Damage claims can only be asserted within the applicable complaint period GB 13

14 Operating instructions T-Dok-042-GB-Rev.2 4 Overview Fig. 1: Overview 1 Air nozzle (flat, round, rotary jet or fullcone rotary jet) 2 Clamping nut 3 Transition part 4 Main element 5 Closing piece 6 Adjustment nut for needle stroke 7 Connection angle (simple fluid connection) 8 Round jet regulator (R) (option) 9 Flat jet regulator (F) 10 Connection angle (option circulation connection) 11 Connection angle (lower fluid connection) 12 Fastening hole 13 Connection control (St)/atomisation air (Z) 14 Fluid nozzle (flat, round, rotary jet or fullcone rotary jet) 15 Fastening screws GB 14 mail@krautzberger.com,

15 Automatic Spray Gun A-12 ENGLISH 5 Installation Personnel: Qualified personnel Protective equipment: Protective gloves 5.1 General installation information Adhere to the following general information for the installation: Only carry out the installation and commissioning according to the steps described in this operating manual. Make sure that the utilised hose lines meet the requirements for pressure, chemical and mechanical loads. Only operate the automatic spray gun after proper fastening on a suitable carrier design. Make sure that the connected compressed air is oil-free and free of solid matter. Operate the automatic spray gun with processed, dried compressed air (air quality pursuant to DIN ISO : grade 4). Vibration and recoil forces may occur on the automatic spray gun during operation. Ensure sufficient fastening. Never point the compressed air at living beings. 5.2 Dimensions Fig. 2: Dimensions GB 15

16 Operating instructions T-Dok-042-GB-Rev Mounting the automatic spray guns Fig. 3: Mounting the automatic spray gun 1. Slide the spray gun with the fastening hole ( Fig. 3/1) over an on-site retaining bolt (Æ = 12 mm). 2. Fasten the automatic spray gun with the screws ( Fig. 3/2) (tightening torque: Ä Chapter 12 Technical data on page 41). 3. Ensure proper earth connection of the automatic spray gun. 5.4 Connection scheme Air and fluid supply Fig. 4: Air and fluid supply St Z DV O/S (E) H Control air Atomisation air Pressure regulator valve Opener/closer with bleed Tap M Material F Filter DE Pressure generator Fluid supply Air supply GB 16 mail@krautzberger.com,

17 Automatic Spray Gun A-12 ENGLISH Fluid supply for circulation connection Fig. 5: Fluid supply for circulation DE Pressure generator RR Back pressure regulators RW Stirrer mechanism M Material F Filter Fluid supply GB 17

18 Operating instructions T-Dok-042-GB-Rev Connecting the automatic spray gun See also Ä Chapter 5.4 Connection scheme on page 16. WARNING! Danger of injury due to improper connection! When the fluid supply is pressurised, e.g. from pressure containers or with pumps, the range of the fluid jet can increase by a multiple in case of atomisation air failure. This presents a hazard to people and property. Make sure that the fluid supply and the control air are interrupted if the atomisation air pressure drops off quickly. It is recommended to regulate the atomisation air pressure via a filter pressure reducer. The connections for control and atomisation air are marked with letter abbreviations. Fig. 6: Connecting the automatic spray gun 1. Connect the control air to input "St" ( Fig. 6/2). 2. Connect the atomisation air to input "Z" ( Fig. 6/4). 3. Connect the fluid line to ( Fig. 6/1 or 3). 4. For models with circulation connection, connect the second fluid line to the fluid connection ( Fig. 6/5). GB 18 mail@krautzberger.com,

19 Automatic Spray Gun A-12 ENGLISH 5.6 Checking connections 1. Disconnect spray medium supply. Fig. 7: Checking closures 2. Completely open the round jet regulator ( Fig. 7/2, if present) and the flat jet regulator ( Fig. 7/1). To do this, turn the regulator counter-clockwise up to the stop. 3. Open the adjusting nut ( Fig. 7/3) of the needle stroke adjustment maximum 5.5 mm ( Fig. 7). To do so, turn the adjusting nut ( Fig. 7/3) counter-clockwise. One turn of the needle stroke adjustment moves the needle by 1 mm and corresponds to 18 positions. ð No air may escape from the automatic spray gun. 4. Open the control air. ð The needle of the fluid nozzle must push itself back and air must escape from the air nozzle. 5. Close the control air again. 6. Establish fluid supply. ð No spray fluid may escape from the spray gun GB 19

20 Operating instructions T-Dok-042-GB-Rev.2 6 Commissioning Personnel: Qualified personnel Protective equipment: Ear protection Light respiratory protection Safety goggles WARNING! Life threatening risk of injury or property damage through the application of hazardous media! The application of hazardous media can lead to death, serious injuries or property damage. Ensure the resistance of the machine against the medium that is to be applied. Always adhere to the safety data sheet of the medium that is to be applied. CAUTION! Risk of injury through compressed air! Uncontrolled leaks of compressed air can lead to serious injuries! Prior to any work on the device, all compressed-air lines must be closed and bleed if necessary. WARNING! Sound pressure level Depending on the operating conditions, the sound pressure of the device may cause hearing damage. Take suitable action to reduce the impact of the existing sound pressure level. The owner is responsible for the type and implementation of suitable measures, which may depend on the local conditions. 6.1 General Information about the commissioning Adhere to the following general information for the commissioning: Only carry out the commissioning of the automatic spray gun pursuant to the steps described in this operating manual. Check the material and compressed air hose lines before each use for damage and tight fit. GB 20 mail@krautzberger.com,

21 Automatic Spray Gun A-12 ENGLISH Always observe the applicable country-specific safety, accident prevention, occupational safety, and environmental protection regulations for the area of use for the automatic spray gun. Do not use sharply abrasive, chemically aggressive, very hot or very cold spray media without first consulting with and receiving approval from Krautzberger GmbH. Adhere to the spray media manufacturer's safety data sheets. Only operate the automatic spray gun while adhering to the values specified in the ( Ä Chapter 12 Technical data on page 41). Only operate the automatic spray gun after proper fastening on a suitable carrier design. Do not hold the automatic spray gun in your hand during operation. Never point the compressed air at living beings. Adhere to the operating manuals for the respective components 6.2 Operation To achieve optimal results, adhere to the following: Rinse the automatic spray gun with cleaning products before commissioning. Too-high air pressure causes unnecessarily high air consumption and too-strong atomisation of the spray fluid. Too-low air pressure produces an unsatisfactory spray pattern. Select the lowest possible fluid pressure. 1. Make sure that the control air and atomisation air connections are not reversed. 2. Close the control air (connection "St"). 3. "Open" fluid feed. Depending on the type of fluid feed, the "opening" of the fluid feed is carried out By opening the connection tap By applying pressure to the storage container By filling the fluid into a storage container (hydrostatic inherent pressure). 4. Open the control air. ð The fluid is sprayed. Generally, the adjustment of the spray pattern is now required ( Ä Chapter 6.3 Adjusting the spray pattern on page 22) GB 21

22 Operating instructions T-Dok-042-GB-Rev Adjusting the spray pattern Fig. 8: Adjusting the spray pattern 1. Open the adjusting nut ( Fig. 8/3) of the needle stroke adjustment maximum 5.5 mm ( Fig. 8). To do so, turn the adjusting nut ( Fig. 8/3) counter-clockwise. 2. Completely close the flat jet regulator ( Fig. 8/1). 3. Completely open the round jet control ( Fig. 8/2). Do not close the round jet regulator ( Fig. 8/2) completely during operation. 4. Adjust the flat jet on the flat jet regulator ( Fig. 8/1). 5. Continue adjusting settings on the regulators ( Fig. 8/1 and 2) until the desired spray pattern is achieved. It is recommended that you only adjust the spray pattern with the regulators ( Fig. 8/1 and 2). The fluid quantity should only be changed if the desired spray pattern cannot be adjusted with the regulators ( Fig. 8/1 and 2). A limited fine adjustment, e.g. for the adjustment of several spray guns in a system, can be made using the adjustment nut ( Fig. 8/3). In order to obtain reproducible settings, the zero point should be checked and if necessary set after each maintenance ( Ä Chapter 6.4 Setting the zero point of the needle stroke setting on page 23). GB 22 mail@krautzberger.com,

23 Automatic Spray Gun A-12 ENGLISH 6.4 Setting the zero point of the needle stroke setting Fig Close the air feed. 2. Turn the adjustment nut ( Fig. 9/1) by turning clockwise. 3. Open fluid feed. 4. Open the control air feed. 5. Slowly open the adjustment nut ( Fig. 9/1) turning counter-clockwise until fluid escapes. 6.5 Operation breaks 1. End the spray procedure by switching on the control air (connection "St"). The atomiser air (connection "Z") is automatically closed in the automatic spray gun. 2. Interrupt the spray fluid supply. 3. If necessary, clean the spray gun ( Ä Chapter 7.2 Cleaning spray guns on page 25) GB 23

24 Operating instructions T-Dok-042-GB-Rev.2 7 Maintenance Personnel: Qualified personnel Protective equipment: Protective gloves Safety goggles WARNING! Risk of injury through the use of incorrect spare parts! The use of incorrect or defective spare parts can cause risks for the personnel as well as damage, malfunctions or complete failure. Only use original spare parts from Krautzberger or spare parts that have been approved by Krautzberger. In case of questions, always contact our service department. CAUTION! Risk of injury through compressed air! Uncontrolled leaks of compressed air can lead to serious injuries! Prior to any work on the device, all compressed-air lines must be closed and bleed if necessary. 7.1 Maintenance schedule The following sections describe the maintenance work that is required for optimal and fault-free operation of the device. Check wearing parts such as seals, nozzles, and needles at regular intervals. The level of wear depends on the abrasiveness of the spray fluid used. Escaping air and spray fluid as well as the deterioration of the spray pattern are signs that parts are worn. In case of questions about maintenance work and intervals, contact the manufacturer; see contact information on the last page. Interval Maintenance work Personnel Before performing any maintenance work Clean automatic spray gun ( Ä Chapter 7.2 Cleaning spray guns on page 25) if needed Change fluid and air nozzle ( Ä Chapter 7.3 Changing the air and fluid nozzles on page 26) Change fluid needle ( Ä Chapter 7.4 Changing the fluid needle on page 27) Change needle packing ( Ä Chapter 7.5 Changing needle packing on page 29) Qualified personnel Qualified personnel Qualified personnel Qualified personnel GB 24 mail@krautzberger.com,

25 Automatic Spray Gun A-12 ENGLISH 7.2 Cleaning spray guns WARNING! Danger of injury due to improper cleaning! Observe the safety data sheets of the cleaning product manufacturer. Do not immerse the automatic spray gun entirely in cleaning product. 1. Interrupt operation ( Ä Chapter 6.5 Operation breaks on page 23). 2. Switch off the system and secure it against being switched on again. 3. Connection cleaning product to fluid input. For design with circulation connection (optional), connect the fluid circulation line. 4. Switch on the compressed air supply. 5. Begin the spray process by switching on the control air (connection "St") and the atomisation air (connection "Z"). 6. Spray until the cleaning product runs clear. 7. Interrupt the cleaning product supply. 8. Blow out cleaning product residue by briefly switching on the control air. 9. Switch off the compressed air supply and secure it against restart. 10. Clean the outside of the device with a cloth dipped in cleaning product. 11. Remove air and fluid nozzle ( Ä Chapter 7.3 Changing the air and fluid nozzles on page 26) and clean with a soft brush. Do not use hard or sharp-edged objects. We recommend our brush set. See the last page for contact information. 12. Lightly grease sliding parts with suitable grease (e.g. type no of the manufacturer, contact information see last page) GB 25

26 Operating instructions T-Dok-042-GB-Rev Changing the air and fluid nozzles Removing the nozzles 1. Clean automatic spray gun ( Ä Chapter 7.2 Cleaning spray guns on page 25) Fig. 10: Changing the nozzles 2. WARNING! The closing piece ( Fig. 10/5) is under spring force! Carefully unscrew the closing piece ( Fig. 10/5). 3. Loosen clamping nut ( Fig. 10/1). 4. Remove the air nozzle ( Fig. 10/2). 5. Unscrew fluid nozzle ( Fig. 10/3). Always change the fluid nozzle ( Fig. 10/3) and fluid needle ( Fig. 10/4) at the same time ( Ä Chapter 7.4 Changing the fluid needle on page 27). Attaching the nozzles 1. Tighten the fluid nozzle ( Fig. 10/3). 2. Attach the air nozzle ( Fig. 10/2) and tighten it with the clamping nut ( Fig. 10/1). 3. Screw on the closing piece ( Fig. 10/5). GB 26 mail@krautzberger.com,

27 Automatic Spray Gun A-12 ENGLISH 7.4 Changing the fluid needle Removing the fluid needle 1. Clean automatic spray gun ( Ä Chapter 7.2 Cleaning spray guns on page 25) Fig. 11: Removing the fluid needle 2. WARNING! The closing piece ( Fig. 11/1) is under spring force! Carefully unscrew the entire closing piece ( Fig. 11/1). 3. Remove the spring ( Fig. 11/2). 4. Take the entire valve shaft ( Fig. 11/3) out of the main element ( Fig. 11/4). Fig. 12: Removing the fluid needle 5. Loosen the nut ( Fig. 12/1) of the valve shaft pipe ( Fig. 12/4). 6. Remove the spring ( Fig. 12/2) and fluid needle ( Fig. 12/3) from the valve shaft pipe ( Fig. 12/4). Fig. 13: Check the seals 7. Check the seals ( Fig. 13/1 to 6) for damage, replace if necessary GB 27

28 Operating instructions T-Dok-042-GB-Rev.2 Attaching the fluid needle Fig. 14: Attaching the fluid needle Push the fluid needle ( Fig. 14/3) and spring ( Fig. 14/2) into the valve shaft pipe ( Fig. 14/4). 3. Screw the nut ( Fig. 14/1) onto the valve shaft pipe ( Fig. 14/4). Fig. 15: Attaching the fluid needle 4. Push the entire valve shaft ( Fig. 15/3) into the main element ( Fig. 15/4). 5. Attach the spring ( Fig. 15/2) and tighten it with the entire closing piece ( Fig. 15/1). GB 28 mail@krautzberger.com,

29 Automatic Spray Gun A-12 ENGLISH 7.5 Changing needle packing Removing needle packing 1. Clean automatic spray gun ( Ä Chapter 7.2 Cleaning spray guns on page Remove the fluid needle ( Ä Chapter 7.4 Changing the fluid needle on page 27) Fig. 16: Removing needle packing 3. Unscrew the screw ( Fig. 16/1) from the transition part ( Fig. 16/3) and the main element (/ 2). 4. Remove the transition part ( Fig. 16/3) from the main element ( Fig. 16/2). Fig. 17: Removing needle packing 5. Unscrew the seal screw ( Fig. 17/1). 6. Remove all of the needle packing ( Fig. 17/2) from the transition part ( Fig. 17/3). 7. Remove the seals ( Fig. 17/5) from the centring tubes ( Fig. 17/4) GB 29

30 Operating instructions T-Dok-042-GB-Rev.2 Inserting the needle packing Fig. 18: Inserting the needle packing 1. Insert entire needle packing ( Fig. 18/2) into the transition part ( Fig. 18/3). 2. Screw in the seal screw ( Fig. 18/1). 3. Place the seals ( Fig. 18/5) onto the centring tubes ( Fig. 18/4). Fig. 19: Inserting the needle packing 4. Insert the transition part ( Fig. 19/3) into the main element ( Fig. 19/2). 5. Screw the transition part ( Fig. 19/3) and main element ( Fig. 19/2) together with the screw ( Fig. 19/1). 6. Attach the fluid needle ( Ä Chapter 7.4 Changing the fluid needle on page 27) GB 30 mail@krautzberger.com,

31 Automatic Spray Gun A-12 ENGLISH 8 Faults Personnel: Qualified personnel Fault table Spray pattern Fault Cause Remedy Normal flat jet spray pattern Spray pattern too heavy towards the top and towards the bottom Dirty air nozzle Dirty fluid nozzle Clean nozzles ( Ä Chapter 7.2 Cleaning spray guns on page 25) Spray pattern concentrated on the left or right side Dirty air nozzle Dirty fluid nozzle Clean nozzles ( Ä Chapter 7.2 Cleaning spray guns on page 25) Heavy application in the centre of the spray pattern Too much fluid Throttle fluid supply Fluid too thick Thin fluid Split spray pattern Too little fluid Increase fluid supply Flat jet air pressure too high Reduce flat jet air pressure Spray pattern too thin Union nut loose Tighten union nut Fluid jet comes out in spurts or flittering Insufficient fluid supply Increase fluid supply Blocked fluid path Clean GB 31

32 Operating instructions T-Dok-042-GB-Rev.2 Spray pattern Fault Cause Remedy Leakage on the clamping screw Loose or damaged fluid nozzle Tighten or replace ( Ä Chapter 7.3 Changing the air and fluid nozzles on page 26) Worn needle seal Change needle seal ( Ä Chapter 7.5 Changing needle packing on page 29) Needle seal defective Fluid nozzle drips Worn or damaged fluid needle Dirty or damaged fluid nozzle Change needle seal ( Ä Chapter 7.5 Changing needle packing on page 29) Change fluid needle ( Ä Chapter 7.5 Changing needle packing on page 29) Clean ( Ä Chapter 7.2 Cleaning spray guns on page 25) or replace fluid nozzle ( Ä Chapter 7.3 Changing the air and fluid nozzles on page 26) GB 32 mail@krautzberger.com,

33 Automatic Spray Gun A-12 ENGLISH 9 Spare parts WARNING! Risk of injury through the use of incorrect spare parts! The use of incorrect or defective spare parts can cause risks for the personnel as well as damage, malfunctions or complete failure. Only use original spare parts from Krautzberger or spare parts that have been approved by Krautzberger. In case of questions, always contact our service department. Spare parts order General To make spare part ordering easier, please provide the following information: Serial number Type Year Designation Item number according to spare parts list Quantity Desired shipping method (post, freight, sea, air, express) Delivery address GB 33

34 Operating instructions T-Dok-042-GB-Rev Spare parts Spare parts overview Fig. 20: Spare parts GB 34

35 Automatic Spray Gun A-12 ENGLISH Spare parts list Item Designation Article no. Additional information 1 Union nut Air nozzle Wear parts 3 Fluid nozzle Wear parts 4 Flat seal Screw 030- Lightly grease parts 6 Head section, alum. (incl. pos. 7, 8) Head section, VA (incl. pos. 7, 8) Air distributor ring Air distributor ring Flat seal Seal, compl Reducing nipple Connection angle O-ring Screw plug Transition part, aluminium Transition part, stainless steel Screw plug O-ring Lightly grease parts 18 Throttle valve, A HVLP 19a Packing, stainless steel/uhmw-pe Packing, stainless steel/ptfe Packing, stainless steel/nbr Packing, brass/nbr Packing, stainless steel/leather a Flat seal Wear parts / sealing set / lightly grease parts 19.2a Slotted ring, UHMW Wear parts / sealing set / lightly grease parts GB 35

36 Operating instructions T-Dok-042-GB-Rev.2 Item Designation Article no. Additional information Slotted ring, PTFE Wear parts / sealing set / lightly grease parts Slotted ring, NBR Wear parts / sealing set / lightly grease parts 19.3a Seal screw, brass Seal screw, stainless steel b Packing, stainless steel Packing, brass b Flat seal Wear parts / seal set 19.2b Needle guide, brass Wear parts / seal set Needle guide, stainless steel Wear parts / seal set 19.3b Disk, PA-6, A Wear parts / sealing set / lightly grease parts Disk, PE Wear parts / sealing set / lightly grease parts 19.4b Spacer ring, brass Spacer ring, brass anodised Spacer ring, aluminium, hardened Spacer ring, stainless steel b Guide bushing Wear parts / seal set 19.6b Seal screw, brass Lightly grease parts Sealing screw, brass, nickel plated Lightly grease parts Sealing screw, aluminium, hardened Lightly grease parts Sealing screw, stainless steel (VA) Lightly grease parts 20 Screw plug Circlip Catch spring GB 36 mail@krautzberger.com,

37 Automatic Spray Gun A-12 ENGLISH Item Designation Article no. Additional information 23 Jet regulator a Scale disk Screw Lightly grease parts 25 Slotted ring O-ring Valve housing O-ring Slotted ring Disk Main element Hexagonal head screw Lightly grease parts 33 Cover clamp Enclosure part compl Adjustment nut with thread Lock washer Ball Lock element Spring Lightly grease parts 36 Nut Flat seal Shaft ring Slotted ring (PTFE) Lightly grease parts Slotted ring (Viton) Lightly grease parts 40 Spring Lightly grease parts 41 Fluid needle Wear parts 41a Fluid needle with head reinforcement Wear parts 42 Valve shaft pipe Seal Lightly grease parts GB 37

38 Operating instructions T-Dok-042-GB-Rev.2 Item Designation Article no. Additional information 44 Valve shaft guide Slotted ring Lightly grease parts GB 38

39 Automatic Spray Gun A-12 ENGLISH 10 Accessories A wide range of accessories are available for the automatic spray gun. For further information, visit us on the Internet ( or contact your Krautzberger specialist dealer, consultant or our office staff. Here are a few examples: Nozzle extensions etc GB 39

40 Operating instructions T-Dok-042-GB-Rev.2 11 Disposal If no return or disposal agreement has been made, recycle the dismantled parts. It is mandatory that the currently applicable country-specific regulations and legal standards are adhered to. This may entail: Scrap metals. Recycle plastic elements. Sort remaining components based on the respective material and dispose of accordingly. In order to prevent damage to the environment, properly dispose of spray fluid residue separate from the device. GB 40

41 Automatic Spray Gun A-12 ENGLISH 12 Technical data 12.1 Dimensions and weight Specification Value Unit Width max. 142 mm Height 74 mm Length max. 178 mm Connection of spray fluid G 3/8 " Connection of atomisation air (internal thread) G 1/4 " Connection of control air (internal thread) G 1/4 " Weight aluminium design approx. 750 g Weight stainless steel design approx. 960 g 12.2 General specifications Specification Value Unit Working pressure control air max. 4-8 bar Working pressure spray fluid max. 12 bar Working pressure atomisation air max. 8 bar Sound pressure level depends on the nozzle approx db(a) Spray fluid temperature max. 50 C Control and atomisation temperature max. 50 C 12.3 Tightening torques The tightening torques need to be chosen based on the VDI 2230 or the standard literature (e.g. Würth) GB 41

42 Operating instructions T-Dok-042-GB-Rev.2 13 Declaration of incorporation Fig. 21: Declaration of incorporation GB 42

43 Automatic Spray Gun A-12 ENGLISH 14 Notes GB 43

44 Operating instructions T-Dok-042-GB-Rev.2 15 Index C Cleaning...25 Connection values...41 D Delivery...13 Dimensions...41 F Fault table...31 H Hazards...6 Health...11 M Measurements...15 O Overview...14 P Personal safety equipment and clothing...8 Personnel...7 S Safety equipment and clothing...8 Safety information...6 Spare parts list...35 Spare parts overview...34 Storage...13 System owner...9 T Tightening torques...41 Torsional moments...41 Transport inspection...13 U User qualification...7 W Weight...41 GB 44 mail@krautzberger.com,

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46 Krautzberger GmbH Stockbornstraße 13 D Eltville am Rhein Hotline: +49 (0) Reception: +49 (0) Fax: +49 (0) Internet: Krautzberger GmbH 2016 Krautzberger GmbH 2016