SERVICE MANUAL AA-82-01.3 (Replaces AA-82-01.2) May - 2008 REA III 100KV AUT OMA TIC APPLICA TOR AUTOMA OMATIC APPLICAT MODEL: 70393 IMPOR TANT IMPORT ANT:: Before using this equipment, carefully read SAFETY PRECAUTIONS, starting on page 1, and all instructions in this manual. Keep this Service Manual for future reference.Service Manual Price: €25.00 25.00 (Euro) $30.00 (U.S.) N O T E : This manual has been changed from revision AA-82-01.2 to revision AA-82-01.3. Reasons for this change are noted under “Manual Change Summary” inside the back cover of this manual. AA-82-01.3 REA III 100kV Automatic Applicator - Contents CONTENTS SAFETY: PAGE 1-4 SAFETY PRECAUTIONS........................................................................................................... 1 HAZARDS/SAFEGUARDS......................................................................................................... 2-4 ATEX 5-8 EUROPEAN ATEX DIRECTIVE................................................................................................. 5 EUROPEAN ATEX LABELS....................................................................................................... 6-7 INTRODUCTION: 9-10 GENERAL DESCRIPTION......................................................................................................... 9 SPECIFICATIONS....................................................................................................................... 9 INSTALLATION: 11-14 INSTALLING................................................................................................................................ 11-12 TYPICAL REA AUTOMATIC APPLICATOR INSTALLATION - WATERBORNE............................................................................................. 12-13 ATOMIZER ASSEMBLY SELECTION....................................................................................... 14 OPERATION: 15-18 SAFETY PROCEDURES............................................................................................................ 15-17 MAINTENANCE: 19-36 ROUTINE SCHEDULE............................................................................................................... ATOMIZER ASSEMBLY CLEANING PROCEDURE................................................................ FLUSHING PROCEDURES....................................................................................................... SERVICE..................................................................................................................................... TROUBLESHOOTING GUIDE................................................................................................... EVALUATING RESULTS OF SCI AND CURRENT DEMAND TEST........................................................................................................................... 19-20 21-22 22 22--32 33-34 PARTS IDENTIFICATION: 37-44 35 70393 REA III 100KV AUTOMATIC APPLICATOR EXPLODED VIEW....................................................................................................................... 37-38 70393 REA III AUTOMATIC APPLICATOR / SOLVENTBORNE SYSTEMS PARTS LIST.............................................................................. 39-40 70393 REA III AUTOMATIC APPLICATOR / WATERBORNE SYSTEMS PARTS LIST.................................................................................. 41-43 WARRANTY POLICIES: 45 LIMITED WARRANTY................................................................................................................. 45 AA-82-01.3 REA III 100kV Automatic Applicator - Safety SAFETY SAFETY PRECAUTIONS Before operating, maintaining or servicing any ITW Ransburg electrostatic coating system, read and understand all of the technical and safety literature for your ITW Ransburg products. This manual contains information that is important for you to know and understand. This information relates to USER SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the following symbols. Please pay particular attention to these sections. A W ARNING! states information to alert you WARNING! to a situation that might cause serious injury if instructions are not followed. A CAUTION! states information that tells how to prevent damage to equipment or how to avoid a situation that might cause minor injury injury.. A NOTE is information relevant to the procedure in progress. While this manual lists standard specifications and service procedures, some minor deviations may be found between this literature and your equipment. Differences in local codes and plant requirements, material delivery requirements, etc., make such variations inevitable. Compare this manual with your system installation drawings and appropriate ITW Ransburg equipment manuals to reconcile such differences. ! WARNING > The user MUST read and be familiar with the Safety Section in this manual and the ITW Ransburg safety literature therein identified. > This manual MUST be read and thoroughly understood by ALL personnel who operate, clean or maintain this equipment! Special care should be taken to ensure that the WARNINGS and safety requirements for operating and servicing the equipment are followed. The user should be aware of and adhere to ALL local building and fire codes and ordinances as well as NFPA-33 SAFETY STANDARD, prior to installing, operating, and/or servicing this equipment. ! WARNING > The hazards shown on the following page may occur during the normal use of this equipment. Please read the hazard chart beginning on page 2. Careful study and continued use of this manual will provide a better understanding of the equipment and process, resulting in more efficient operation, longer trouble-free service and faster, easier troubleshooting. If you do not have the manuals and safety literature for your Ransburg system, contact your local ITW Ransburg representative or ITW Ransburg. 1 AA-82-01.3 REA III 100kV Automatic Applicator - Safety AREA HAZARD Tells where hazards Tells what the hazard is. SAFEGUARDS Tells how to avoid the hazard. may occur. Spray Area Fire Hazard Fire extinguishing equipment must be present in the spray area and tested periodically. Improper or inadequate operation and maintenance procedures will Spray areas must be kept clean to prevent the accumulation of combustible residues. cause a fire hazard. Protection against inadvertent arcing that is capable of causing fire or explosion is lost if any safety interlocks are disabled during operation. Frequent power supply shutdown indicates a problem in the system requiring correction. Smoking must never be allowed in the spray area. The high voltage supplied to the atomizer must be turned off prior to cleaning, flushing or maintenance. When using solvents for cleaning: Those used for equipment flushing should have flash points equal to or higher than those of the coating material. Those used for general cleaning must have flash points above 100oF (37.8oC). Spray booth ventilation must be kept at the rates required by NFPA-33, OSHA, and local codes. In addition, ventilation must be maintained during cleaning operations using flammable or combustible solvents. Electrostatic arcing must be prevented. Test only in areas free of combustible material. Testing may require high voltage to be on, but only as instructed. Non-factory replacement parts or unauthorized equipment modifications may cause fire or injury. If used, the key switch bypass is intended for use only during setup operations. Production should never be done with safety interlocks disabled. Never use equipment intended for use in waterborne installations to spray solvent based materials. The paint process and equipment should be set up and operated in accordance with NFPA-33, NEC, and OSHA requirements. AA-82-01.3 2 REA III 100kV Automatic Applicator - Safety AREA HAZARD Tells where hazards Tells what the hazard is. SAFEGUARDS Tells how to avoid the hazard. may occur. General Use and Maintenance Improper operation or maintenance Personnel must be given training in accordance with may create a hazard. the requirements of NFPA-33. Personnel must be properly trained Instructions and safety precautions must be read and in the use of this equipment. understood prior to using this equipment. Comply with appropriate local, state, and national codes governing ventilation, fire protection, operation maintenance, and housekeeping. Reference OSHA, NFPA-33, and your insurance company requirements. Electrical Equipment High voltage equipment is utilized. Arcing in areas of flammable or combustible materials may occur. Personnel are ex-posed to high voltage during operation and maintenance. The power supply, optional remote control cabinet, and all other electrical equipment must be located outside Class I or II, Division 1 and 2 hazardous areas. Refer to NFPA-33. Turn the power supply OFF before working on the equipment. Protection against inadvertent arcing that may cause a fire or Test only in areas free of flammable or combustible explosion is lost if safety circuits material. are disabled during operation. Testing may require high voltage to be on, but only Frequent power supply shutdown as instructed. indicates a problem in the system Production should never be done with the safety which requires correction. circuits disabled. An electrical arc can ignite coating materials and cause a fire or Before turning the high voltage on, make sure no explosion. objects are within the sparking distance. 3 AA-82-01.3 REA III 100kV Automatic Applicator - Safety AREA HAZARD Tells where hazards Tells what the hazard is. SAFEGUARDS Tells how to avoid the hazard. may occur. Spray Area / High Voltage Equipment This is a high voltage device that can produce electrical arcs capable of igniting coating materials. Parts being sprayed must be supported on conveyors or hangers and be grounded. The resistance between the part and ground must not exceed 1 megohm. (Reference NFPA-33.) A safe distance must be maintained between the parts being coated and the atomizer bell. A distance of at least 1 inch for each 10 KV of power supply output voltage is required at all times. Parts must be supported so that they will not swing and reduce the clearance specified above. All electrically conductive objects in the spray area, with the exception of those objects required by the process to be at high voltage, must be grounded. Unless specifically approved for use in hazardous locations, the power supply and other electrical equipment must not be used in Class I, Division 1 or 2 locations. AA-82-01.3 4 REA III 100kV Automatic Applicator - Atex EUROPEAN A TEX DIRECTIVE 94/9/EC, ANNEX II, 1.0.6 ATEX The following instructions apply to equipment covered by certificate number Sira 08ATEX5040X: 8. The certification of this equipment relies upon the following materials used in its construction: 1. The equipment may be used with flammable gases and vapors with apparatus groups II and with temperature class T6. If the equipment is likely to come into contact with aggressive substances, then it is the responsibility of the user to take suitable precautions that prevent it from being adversely affected, thus ensuring that the type of protection provided by the equipment is not compromised. 2. The equipment is only certified for use in ambient temperatures in the range +12.8°C to +40°C and should not be used outside this range. 3. Installation shall be carried out by suitably trained personnel in accordance with the applicable code of practice e.g. EN 6007914:1997. 4. Inspection and maintenance of this equipment shall be carried out by suitably trained personnel in accordance with the applicable code of practice e.g. EN 60079-17. 5. Repair of this equipment shall be carried out by suitable trained personnel in accordance with the applicable code of practice e.g. EN 60079-19. 6. Putting into service, use, assembling, and adjustment of the equipment shall be fitted by suitably trained personnel in accordance with the manufacturer's documentation. Refer to the "Table of Contents" of this service manual: a. Installation b. Operation c. Maintenance d. Parts Identification 7. Components to be incorporated into or used as replacement parts of the equipment shall be fitted by suitably trained personnel in accordance with the manufacturer's documentation. 5 Aggressive substances: e.g. acidic liquids or gases that may attack metals, or solvents that may affect polymeric materials. Suitable precautions: e.g. regular checks as part of routine inspections or establishing from the material's data sheets that it is resistant to specific chemicals. Refer to "Specifications" in the "Introduction" section: a. All fluid passages contain stainless steel or nylon fittings. b. High voltage cascade is encapsulated with a solvent resistant epoxy. 9. A recapitulation of the certification marking is detailed in the "Atex" section, on the next page, drawing numbers: 19688, 72562, 76454, 76854, 76896, 77059, 78886, 78894-04, and LEPS5016. 10. The characteristics of the equipment shall be detailed e.g. electrical, pressure, and voltage parameters. The manufacturer should note that, on being put into service, the equipment must be accompanied by a translation of the instructions in the language or languages of the country in which the equipment is to be used and by the instructions in the original language. AA-82-01.3 REA III 100kV Automatic Applicator - Atex REA III 100kV Automatic Applicator 70393 A TEX Product ATEX Marking Definitions Label 72562 Ex Certificate Number: Sira 08ATEX5040X Sira = Notified Body performing EC-type examination 08 = Year of certification ATEX = Reference to ATEX Directive 5 = Protection Concept Code (code 5 is titled Encapsulation) 040 = Document serial number X = Special conditions for safe use apply Label 76454 Special conditions for safe use: The REA-III 70393 Automatic Applicator shall only be used with associated 76447-XX, 76045-XX, LEPS5000-04, LEPS-5002-00, and 78789-02 HV Control Units. Product Marking II 2 G Ex = Specific marking of explosive protection II = Equipment Group hazardous area characteristics 2 = Equipment Category G = Type of explosive atmosphere (gases, vapors, or mists) EEx 0.24mJ = The REA-III 70393 Automatic Applicator is suitable for use in automatic spraying installations complying with EN 50050 as they are a Type A class with a discharge energy limit of 0.24mJ. Label 76854 Label 19688 Label 76896 AA-82-01.3 6 REA III 100kV Automatic Applicator - Atex Label 77059 Label 78894-04 Label 78886 Label LEPS0016 7 AA-82-01.3 REA III 100kV Automatic Applicator - Atex NOTES AA-82-01.3 8 REA III 100kV Automatic Applicator - Introduction INTRODUCTION 9 GENERAL DESCRIPTION SPECIFICA TIONS SPECIFICATIONS The REA III 100kV Automatic Applicator applies a high voltage charge to the coating materials at the point of atomization using a 100kV power supply. This electrostatic charge allows a more efficient, uniform application of coating material to the front, edges, sides, and back of products, making it highly suitable for applying a wide range of coatings to a variety of surface configurations: large targets, small parts, tubular wares, concave and recessed parts, etc. It is available as a grounded fluid system for solvent reduced coatings such as enamels, lacquers, epoxys, etc. Environmental / Physical One of the many safety features of the REA III 100 kV Automatic Applicator is the capability of limiting, to a desirable level, the electrical discharge which is available from the charging electrode. When organic solvent base paints are being sprayed, this level must not exceed 0.25 mJ of energy. In order to achieve this limitation, it is necessary to prevent any flow of energy from the paint supply through the paint line to the applicator electrode. This is accomplished by grounding the paint line at the applicator. Short Circuit Current: Operating V oltage: 100kV maximum Voltage: Operating Fluid Pressure: Operating Air Pressure: Flow Rate: 0-100 psi (0-6.9 bar) 0-100 psi (0-6.9 bar) 1000 cc/min. maximum (viscosity dependent) 150 Microamperes Air and Fluid Nozzles: Any ITW Ransburg Air and Fluid Nozzle combination. (See “Nozzle Selection” in the “Operation” section.) Optional Hose and Cable Lengths: 25, 36, 50, 75, and 100 ft. (8m, 11m, 15m, 23m, and 31m) AA-82-01.3 REA III 100kV Automatic Applicator - Introduction NOTES AA-82-01.3 10 REA III 100kV Automatic Applicator - Installation INST ALLA TION INSTALLA ALLATION ! WARNING ! WARNING > Installation of the equipment MUST be in > The power supply MUST be located compliance with all Federal, State, Local and National codes. outside of the spray area. Install units in accordance with the requirements of local regulations. The power supply MUST be located OUTSIDE of the spray area. > Personnel MUST be GROUNDED to prevent a shock or spark during electrostatic operation. > > Install and route the hoses and cables so they are NOT exposed to temperatures in excess of 120°F (49°C) and so that all hose and cable bends are NOT less than a 6-inch (15 cm) radius. Failure to comply with these parameters could cause equipment malfunctions that might create HAZARDOUS CONDITIONS! INST ALLING INSTALLING 1. To connect the high voltage cable, remove the cable retainer bracket and remove the protective cap for the power supply high voltage cable socket. Insert the high voltage cable (and plug) into socket. Gently hand-tighten the cable retaining nut. Reattach the bracket. 2. The control unit MA MAY Y be connected through conduit with an explosion-proof terminal on or near the spray booth where it will be convenient, or may be connected with a line cord depending upon application requirement. 3. Install Filters: Install the optional fluid filter on output of fluid supply. Detail depends on whether pressure tank, pump unit, recirculating system, etc. is used. Filter must be installed vertically with drain valve down and arrow pointing in direction of flow (see Figure 1). 4. Install Line Hose (Air or Fluid): NOTE > ITW Ransburg supplies a standard 25 ft. (8m) hose. Optional hose lengths of 36 ft. (11m), 50 ft. (15m), 75 ft. (23m), and 100 ft. (31m) are available. To meet various length requirements, the hose fitting on one end has not been attached. Determine the hose length that is needed and cut the hose. Attach the other fitting as follows: a. Lubricate all fittings with petroleum jelly. b. Screw ferrule counter-clockwise onto hose until it bottoms. Then back it off about 1/8inch (3mm). NOTE NOTE Refer to the Power Supply Service Manual for the circuit diagram and instructions to connect the power supply. > 11 > The union stem will not seat if the hose is bottomed against the ferrule. AA-82-01.3 REA III 100kV Automatic Applicator - Installation c. Install nut over union stem and start the stem into the hose. d. Using the 1/8-inch Allen wrench, screw the union stem into the hose until it bottoms against the ferrule. e. Connect one end of one hose to the appropriate fitting on the bottom of the applicator body and the other end to the power supply pressure switch for trigger air. Attach the other hose to the atomizing air source. ! WARNING NEVER use wooden boxes, pallets, or boards as wood will absorb moisture and is a poor insulator. > • Isolation stand MUST be at least 18-inches from the grounded booth wall, chain link fence, or other grounded objects. • Air hoses to the pressure pot or pump on the insulating stand should be nonconductive. Many rubber hoses will have static grounding circuits or carbon content and are NOT suitable. • Air regulators for pots or pumps should be mounted remotely outside the fence or cage area to facilitate changes in pressure without shutting the system down. • Grounding hooks at the cage MUST be used to ground portions of the system when personnel are working close by. • Fluid lines to the applicator MUST be protected from scraping and abrasion on the floor or sharp metal edges that could lead to voltage pinholing and loss of kV on the charged system. Figure 1: Installing Line Hose • Cleanliness and maintenance are extremely critical. TYPICAL REA AUT OMA TIC APPLICA TOR AUTOMA OMATIC APPLICAT INST ALLA TION INSTALLA ALLATION WATERBORNE • Fully discharge system capacitance prior to service. ! WARNING System capacitance must be fully discharged prior to any service or maintenance of the applicator. > Using waterborne coating with electrostatic equipment requires that the fluid source should be isolated from ground and other precautions be taken to ensure operator safety and system efficiency. The following guidelines should be followed: > ALL charged (isolated) systems MUST be • The fluid lines and source MUST be isolated from ground. An isolating paint stand or similar isolating (non-porous) material MUST be used. inside a fence or cage to prevent contact by personnel. An interlock system MUST be provided that interrupts high voltage flow to the applicator if the gate is opened. AA-82-01.3 ! WARNING 12 REA III 100kV Automatic Applicator - Installation Paint Preparation A proper paint mixture is essential to electrostatic operation. Paint test equipment may be obtained through your ITW Ransburg representative. Consult ITW Ransburg literature “Paint Related Information for REA and REM Applicators” manual for paint formulation information. For further paint formulation and testing procedures, consult your ITW Ransburg representative and/or paint supplier. Atomizer Assembly Selection ! CAUTION > A counter-clockwise turn of the air cap may loosen the fluid nozzle and cause air to get into the paint or paint to cross over into the air passages. Applicator T o T arget Distance To Target Mount the applicator 6-12-inches (152-305mm) maximum from the target for best operation. The “Atomizer Assembly Selection” charts are provided to give you a comparison of the air caps THE CHOICE OF and fluid nozzles. AT OMIZER ASSEMBL Y SHOULD ASSEMBLY DEPEND ON QUALITIES DESIRED AND MUST BE VERIFIED BY ACTUAL TRIAL. See you authorized ITW Ransburg distributor for atomizer demonstration. Spray Pattern Adjustment The spray pattern of fan atomizers is adjustable from a small circle to an elongated oval, approximately 10-12-inches (254-305mm) across the useable long axis at 8-10-inches (203-254mm) from the target. The swirl atomizer assemblies produce a round pattern from 5-9-inches (127229mm) in diameter. To adjust pattern size, increasing fan air pressure will expand the pattern, a reduction will decrease it. To change the spray pattern axis of fan atomizers from horizontal to vertical, loosen retainer ring, rotate the air cap clockwise to the desired position, and gently tighten the ring. 13 AA-82-01.3 REA III 100kV Automatic Applicator - Installation AT OMIZER ASSEMBL Y SELECTION ATOMIZER ASSEMBLY REA NOZZLES (Conventional Spray) Air Cap Part Number 70899-00 LREA0002 4904-65R 4904-65R 4904-65R 4904-65R 4904-65R 4904-63 4904-63 4904-63 4904-63 4904-63 4904-98 4904-98 4904-98 4904-98 4904-98 Fluid Nozzle Part Number 70898-00 LREA0003 4907-44 4907-45 4907-46 4907-47 4907-48 4907-44 4907-45 4907-46 4907-47 4907-48 4907-44 4907-45 4907-46 4907-47 4907-48 Orifice ID Swirl Round .055” (1.4mm) .070” (1.8mm) .042” (1.1mm) .028” (0.7mm) .047” (1.2mm) .055” (1.4mm) .070” (1.8mm) .042” (1.1mm) .028” (0.7mm) .047” (1.2mm) .055” (1.4mm) .070” (1.8mm) .042” (1.1mm) .028” (0.7mm) .047” (1.2mm) Separate Retaining Ring Pressure Reducer (Black) 4903-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 73569-00 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 74963-02 REA NOZZLES (HVLP) Air Cap Part Number 75601-00 75601-00 75601-00 AA-82-01.3 Fluid Nozzle Part Number 75600-01 75600-02 75600-03 Orifice ID .055” (1.4mm) .070” (1.8mm) .086” (2.2mm) Separate Retaining Ring 73569-00 73569-00 73569-00 Pressure Reducer (White) 74963-03 74963-03 74963-03 14 REA III 100kV Automatic Applicator - Operation OPERA TION OPERATION SAFETY PROCEDURES ! WARNING > The simple safety measures outlined in the “Safety” section are vital. Failure to observe them could cause a spark capable of starting a fire. 1. The articles being coated MUST be grounded at all times. 2. All components of the applicator system MUST be grounded at all times. 3. All contact points MUST be free of any accumulation of non-conductive residue. 4. All electrically conductive objects, especially solvent containers, within the spray area MUST be either removed or grounded. Any tool, if used improperly, can be dangerous. Safety is ultimately the responsibility of those using a tool. In like manner, safe operation of electrostatic coating processes is the responsibility of those who use such processes and those who operate electrostatic coating equipment. It is most important that equipment operators and supervisory personnel understand the requirements for safe operations. Additional cards summarizing these safety requirements are available from ITW Ransburg on request. These cards should be posted in the spraying area so that they can be readily referred to and serve as a reminder to personnel that area of responsibility. Additional copies of “Cleaning Safety Requirements” are available upon request. Each user should examine his own coating operation, develop his own safety program and ensure that his workers follow correct procedures. ITW Ransburg hopes that the information it provides is helpful to the user in establishing such a program. In addition to the available cards, labels, brochures, and service manuals, the user should consult other standards and recognized safety authorities. Local codes and authorities also have standards to be followed in the operation of your spray equipment. Your insurance carrier will be helpful in answering questions that arise in your development of spray coating procedures. All personnel MUST read and understand the following ITW Ransburg literature, “T “Technical echnical Supplement for All Products”. ! WARNING > If ANY symptom of improper operation occurs suspend use of the unit until the problem has been diagnosed and corrected. See the appropriate “Troubleshooting Guide” or contact your ITW Ransburg representative. 15 AA-82-01.3 REA III 100kV Automatic Applicator - Operation ! WARNING > Verify that the applicator body assembly is actually grounded before operating it! This is done with a fully connected and operation system, by placing one lead of an ohm meter to the body assembly and the other to the building electrical ground (cold water pipe, building structure, etc.). The reading should be essentially zero. > If a reading much greater than zero is obtained, check that the power supply is grounded. Place one lead of the ohm meter on the building electrical ground and the other on the high voltage cable outlet bushing. If the reading is much greater than zero, reconnect the power supply ground. If the meter reads zero, check the high voltage cable. Place one lead on the high voltage cable retaining nut and the other lead on the applicator body assembly. If the reading is much greater than zero, the braided cable may be defective and should be replaced. 1. Parts, Equipment and Supplies: a. Ground the spray booth, the paint tank, and the conveyor. b. Ground ALL solvent containers. c. Ground ALL work holders and hooks and keep them free of paint. 2. Personel Procedures: a. GROUND ALL PERSONS IN ALL SPRA Y AREAS by requiring that they SPRAY wear conductive soled shoes or personnel grounding straps. (See ITW Ransburg “Safety Literature Handbook - Electrostatic Safety Information from ITW Ransburg”.) b. Turn the power supply OFF prior to cleaning or working on the equipment. c. NEVER immerse any part of, or all of a spray applicator in any liquid, while assembled. d. Personnel MUST stay out of the spray booth during operation. 3. Ventilation: Electrostatic attraction greatly reduces paint overspray, thereby reducing ventilation requirements. An exhaust velocity of 100 to 150 FPM at the spray position is normally adequate. Exhaust system (and conveyor) MUST be interlocked with the triggering function. ! WARNING > Exhaust system and conveyor must be interlocked with high voltage d. See that no more than one gallon of solvent per safety container per operator is inside the work area. e. See that the power supply is grounded and located outside the spray area. f. See that conductive flooring is provided in all spray areas. g. See that the proper fire extinguishing equipment is provided. AA-82-01.3 16 REA III 100kV Automatic Applicator - Operation 4. Housekeeping: NOTES Good housekeeping is always necessary to ensure quality finishes, eliminate rejects, and reduce service requirements (see OSHA standards). a. Periodically strip all workholders to maintain proper grounding of parts. b. Establish adequate cleaning and maintenance schedules based on observation of initial production characteristics. c. Employ fire protection measures, including proper storage of paints, solvents, and waste, plus ready access to fire extinguishing equipment. Provide water sprinklers, CO2, or chemical fire extinguishers within the spray area (check local fire codes). 17 AA-82-01.3 REA III 100kV Automatic Applicator - Operation NOTES AA-82-01.3 18 REA III 100kV Automatic Applicator - Maintenance MAINTENANCE ! WARNING > The user MUST read and be familiar with the SAFETY INSTRUCTIONS in this manual. > If compressed air is used in cleaning, REMEMBER THAT HIGH PRESSURE AIR CAN BE DANGEROUS AND SHOULD NEVER BE USED AGAINST THE BODY. It can blind, deafen, and may even penetrate the skin. If used for cleaning equipment, the users should wear safety glasses. ALWAYS turn the control unit power off prior to cleaning or servicing equipment. > Be SURE the power is OFF and the system is grounded BEFORE using solvent to clean ANY of the quipment. > DO NOT OPERATE A FAULTY > APPLICATOR! > When using cleaning solvent, standard health and safety precautions should apply. ! CAUTION NEVER remove the fluid nozzle assembly while paint is in the applicator or paint may clog the air passages. Clogged air passages will cause poor atomization and electrical shorting. Air passages which are clogged with conductive material may lead to excessive current output levels and consequent low operating voltage and long range electrical damage. Before undertaking any atomizer assembly procedure, see “Atomizer Assembly Cleaning Procedure” in the “Maintenance” section. > > The applicator MUST be tilted front down to remove the air cap and/or fluid nozzle. Failure to do so may allow paint to enter the air passages, thereby reducing air flow and damaging the applicator barrel/cascade. Applicators may be flushed in lieu of tilting. However, they must be either flushed or tilted down! • Clean all insulating surfaces in the system. Remove paint accumulation from the exterior of the applicator and high voltage cable with a solvent dampened cloth. ! WARNING ROUTINE SCHEDULE NEVER soak or submerge the electrical components of the applicator (i.e. barrel, transformer, cable). Damage and failure may occur. > Follow these maintenance steps to extend the life of the applicator and ensure efficient operation: Times Several T imes Daily: • Turn the control unit power to OFF! Daily (at the start of each shift): • Inspect the air cap for fluid/solvent accumulation. Clean as frequently as necessary with a soft bristled brush and a suitable solvent. • Verify that ALL solvent safety containers are grounded! • Check within 20 feet of the point of operation (of the applicator) and remove or ground ALL loose or ungrounded objects. 19 AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance • Inspect workholders for accumulated coating materials, removing such accumulations. 2. Turn the fluid/solvent supply OFF. 3. Turn the atomizing air and fan air OFF. • Check that atomizer assembly is clean and undamaged. • Straighten the applicator electrode if necessary. ! CAUTION > When straightening the electrode, be careful not to distort the fluid nozzle orifice. 4. Turn piston air OFF. 5. Wipe the applicator, cable, and hoses with a rag and a suitable cleaning solvent. 6. Flush the lines and allow the solvent to remain in the lines unpressured. (See “Flushing Procedures” in the “Maintenance” section of this manual.) NOTE • Clean the fluid filter, if used. • Turn the control unit power ON. The applicator’s red transformer light should light when triggered. • Run a current/voltage output test. Electrical Current Output T est Test 1. Turn the fluid/solvent supply OFF. 2. Turn high voltage on at applicator. 3. Slowly approach the applicator electrode to any grounded object and make contact. 4. Monitor the current output reading on the power supply meter. As applicator approaches, ground current should increase near 120 mA. Overload current should “trip”, shutting off high voltage. Overload indication should come on. 5. Release the trigger and turn the power supply power OFF. > If the shut-down time is to be short, the lines may not require flushing, depending on the type of coating material used. If the solids in the material settle slowly, the lines will not need to be flushed as soon after shut-down as with fast settling solids. The fluid/solvent being used and the length of time that the lines will be shutdown will determine the need for flushing. Metallic paint and primer will require flushing sooner than some other types of coating materials. ! CAUTION > If the coating material is fast settling and if the lines are not flushed soon enough, the applicator’s fluid passages as well as the lines may become clogged and cause excessive down-time and/or service and repair. If the control unit does not trip, DO NOT use the applicator until the problem has been corrected. (See the “Troubleshooting Guide” in the “Maintenance” section of this manual.) Weekly Shut-Down (and at the end of each shift) • Clean the atomizer assembly. • Check the entire system for damage, leaks, and paint accumulation. 1. Turn the power supply power OFF. AA-82-01.3 20 REA III 100kV Automatic Applicator - Maintenace ATOMIZER ASSEMBL Y ASSEMBLY CLEANING PROCEDURES Routine Cleaning Equipment Needed For efficient operation, keep the applicator’s exterior and the high voltage cable clean and free of paint accumulation and dirt. This prevents the loss of voltage to ground with a resulting reduction in electrostatic effect. Solvent accumulation at the air cap orifices reduces atomization quality and increases the potential for paint “spits”. Clean the air cap with a brush and cleaning solvent as often as needed to ensure good atomization. • An appropriate solvent • Solvent safety container (grounded) • Small soft bristled brush • ITW Ransburg 19749-00 special multi-purpose wrench from the installation kit. ! CAUTION > To avoid damage to the fluid nozzle, needle/electrode, the fluid pressure MUST be released by triggering the applicator prior to removing the tip. The applicator MUST be tilted front down to remove the air cap and/or fluid nozzle. Failure to do so may allow fluid/ solvent to enter the air passages, thereby reducing air flow and damaging the applicator barrel/cascade. Applicators may be flushed in lieu of removing nozzles. However, they MUST be either flushed prior to, or tilted down during nozzle removal! > > The control unit power MUST always be off when removing the nozzles or any other service to the applicator. > Using any tool other than the ITW Ransburg 19749-00 wrench to remove or reinstall the fluid nozzle may distort or damage it. 21 ! WARNING > NEVER wrap the applicator in plastic to keep it clean. A surface charge may build-up on the plastic surface and discharge to the nearest grounded object. Efficiency of the applicator will also be reduced and damage or failure of the applicator components may occur. WRAPPING THE APPLICATOR IN PLASTIC WILL VOID THE WARRANTY. Proceed as Follows: 1. Turn the power supply unit power OFF. 2. Release the trigger. 3. Turn the fluid/solvent flow OFF. 4. See “Service” section in the “Maintenance” section of this manual for “Disassembly Procedures”. ! WARNING > Any damage to the applicator may result in UNSAFE operating conditions. 5. Clean the removed parts with a soft bristled brush and suitable solvent. AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance ! CAUTION > Metal tools and wire brushes must NEVER be used. NEVER use a cleaning tool that is harder than the plastic parts. If a deposit cannot be removed with the solvent and a rag or the soft brush, soak the part in the solvent ONLY until the deposit can be removed! NEVER SOAK THE APPLICATOR BODY, BARREL, OR TRANSFORMER! SERVICE All repairs should be made on a clean, flat surface. If a vise is used to hold parts during service or repair, DO NOT clamp onto plastic parts and always pad the vise jaws! During assembly, ALWAYS lubricate o-rings, chevron seals, and the threads on part Items #45, 57, 58, 43, and 49, as indicated, with a light coat of petroleum jelly. (Teflon o-rings do not need lubrication.) FLUSHING PROCEDURES ! CAUTION > Do NOT USE any silicone lubrication in this system! 1. Turn the control unit power OFF. ! 2. Turn the fluid/solvent supply OFF. > ALWAYS remove the applicator from 3. Turn the atomizing air supply OFF. 4. Activate dump air and flush with a suitable cleaning solvent until it is clear of fluids. Air purge the dump line. the work site for service or repair! The following tools will be needed: 6. Disconnect the solvent supply. • • • • 7. Activate the trigger valve until it is clear of solvent. After the preceding steps are complete, the applicator is ready for color change, storage, or service. • • • • 5. De-activate dump air and activate trigger air until the applicator fluid passage is clear. ! CAUTION Special wrench 20049-00 Nozzle wrench 19749-00 3/32” Allen wrench Open end wrenches: 15/16”, 7/8”, 11/16”, 9/16”, 7/16”, 3/4”, 3/8”, and 1/4” Screwdriver (broad) Paper clip (or similar rigid wire) Lock-Tite, medium strength, P/N 7969-03 Plastic or wood dowel rod, 5/16-inch diameter CAUTION > Do NOT allow the fluid lines to stand empty without flushing first! This will cause dried solvent flaking into and clogging of the fluid lines, applicator passages, and nozzles. AA-82-01.3 22 REA III 100kV Automatic Applicator - Maintenance R emove the Applicator from the Work Site 1. Flush the applicator (see “Flush Procedure” in the “Maintenance” section). ! WARNING > 2. Turn ALL power, air, and fluid (coating material and solvent) OFF at the source. 1. Air Nozzle: a. Unscrew air nozzle [1] from barrel [8] and clean or replace it. b. Screw the cleaned or new nozzle assembly onto barrel [8]. 2. Fluid Nozzle: a. Remove air nozzle [1] from barrel [8] and clean or replace it. b. With the nozzle wrench on the wrench flats, remove fluid nozzle [2]. 3. Detach fluid line from fitting [66]. 4. Detach the air line fittings from applicator air fittings [35] and [34]. 5. Detach the high voltage cable [70] from the applicator by unscrewing cable retaining nut [32] and pulling the cable straight out of resistor housing [37]. NOTE > If the high voltage cable is to be replaced, see “High Voltage Cable Replacement” in the “Maintenance” section. c. Clean or replace the fluid nozzle. d. Screw the cleaned or new fluid nozzle [2] into barrel [8]. Secure with the nozzle wrench and release trigger air to applicator. NOTE > It may be necessary to loosen packing nut [21] with the spanner wrench and retract the trigger to seat the nozzle completely. e. Screw air nozzle [1] onto barrel [8]. 6. Loosen set screws [28] and remove the applicator from the work site. Nozzle and Electrode Cleaning or Replacement ! NOTE > If packing nut [21] has been loosened, tighten it until needle shaft [7] moves in and out with firm resistance. CAUTION > NEVER bend the electrode! NOTE > If the fluid nozzle is replaced, there is a NOTE > See “Nozzle Cleaning Procedures” in the “Maintenance” section. 19 good chance that the needle tip assembly [3] will need to be replaced too. A worn neede tip assembly may not always seat well in a new fluid nozzle. AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance Needle T ip Assembly Tip (Electrode) 2. Disengage nuts [58] and [57] from valve rod extension [23]. 1. See “Nozzle and Electrode Cleaning or Replacment - Steps 1 and 2” to remove the air cap and fluid nozzles. 3. Loosen barrel extension [11] with the spanner wrench. 2. Insert the end of a paper clip (or similar rigid wire) through the hole at the rear of the needle shaft [7] to keep it from rotating. 4. Disengage fittings [10] and [9] and release fluid tube [69]. 5. Pull barrel [8] and body [26] STRAIGHT apart. 3. Hold barrel [8] in a vertical position, front end up, and unscrew needle tip [3]. ! NOTE > The vertical position is to keep adaptor [4] from falling out. CAUTION > The barrel and body MUST be pulled straight apart to avoid damage to the resistor housing [37]. NOTE ! CAUTION > Be SURE that adaptor [4] is in place and > Gasket [13] should be kept with the body assembly if it is not to be replaced. facing the right direction when the applicator is reassembled or the applicator will malfunction! Barrel Removal NOTE > In normal operation and service, the barrel extension need never be removed from the barrel. It should be treated as a permanent part of the barrel. If it should be damaged and replacement becomes necessary, remove the barrel from it the same as it is removed from the body assembly AFTER the internal parts have been removed (see “Barrel Disassembly”). NOTE > There is no need to remove retaining ring [12] or barrel nut [11] from barrel [8] unless they are damaged. If they are to be removed, lift one end of ring [12] out of its groove and spiral it off of the end of the barrel. Then nut [11] can be removed. To replace them on the barrel, slide nut [11] onto the barrel, place ring [12] against the back of the barrel, lift one end of it onto the barrel and spiral it on and into its groove. ! CAUTION > Spreading the retaining ring may break it! 1. Remove piston housing [61], spring [60], and spring [59]. AA-82-01.3 6. Part Items #57, 58, 59, and 60 may be stored during barrel service by replacing them in the piston housing and reattaching it to the body. 24 REA III 100kV Automatic Applicator - Maintenance Barrel Disassembly NOTE 1. Remove air nozzle [1] from barrel [8]. > If the needle valve assembly does not 2. Remove fluid nozzle [2] from the front barrel with the nozzle wrench. pull out of the chamber easily, hold the barrel in a vertical position, front end up, and press down against a hard surface until parts [3] through [7] can be pulled from the front of the chamber. Then, insert the flat end of a smooth 5/16-inch plastic or wood dowel rod into the front barrel chamber and press the packing tube [15] and parts [17], [18], and [19] from the chamber. 3. Remove valve rod extension [23] and adjusting nut [22] from needle valve rod [7]. 4. Remove packing nut [21] from the barrel chamber with the spanner wrench. NOTE > The six (6) spring washers [20] will come out of the chamber at this point. ! 6. Slide parts [20], [18], [17], and [15] off of shaft [7]. NOTE CAUTION > If parts [19] and [17] do not separate > DO NOT lose any of the spring wash- easily, wedge a knife blade between them and pry them apart. ers! The applicator MUST have six (6), correctly positioned, spring washers in order to function properly. 5. With a firm pull, remove the needle valve assembly [3] through [19] from the rear of the barrel chamber. 7. Unscrew needle [3] from shaft [7] and slide parts [4], [5], and [6] off of the shaft. Barrel Assembly • Clean all parts with a suitable, clean solvent. ! CAUTION • If the electrode is bent, straighten it CAREY by hand. FULLY FULL that the interior surface of the chamber is NOT damaged (marred or scrateched). • This chamber is a seal area and the barrel will have to be replaced if it is damaged. Check all parts for damage or wear. Replace those that are damaged or worn with new parts. • Replace chevron seals [5], o-rings [16], and u-cup [18] with new parts. > During this operation, be CAREFUL > 25 AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance CAUTION 5. Insert assembly [3] through [7] into the front barrel chamber. > To avoid damage to the chevron seals, the needle shaft assembly MUST be installed from the front of the barrel. 6. Insert fluid nozzle [2] into the chamber and secure it firmly with the nozzle wrench. ! 1. Place female chevron adaptor [6] onto the front of shaft [7] with the concave side toward the front. 2. Place the four (4) new chevron seals on shaft [7], concave sides forward, by carefully rotating them. ! 7. Screw air nozzle [1] onto barrel [8] to protect needle [3] during the balance of the assembly procedures. 8. Place packing tube [25] over the end of shaft [7] through the rear barrel chamber. 9. Place the new u-cup [18] into rear needle seat retainer [17] with the open side out. CAUTION DO NOT push the chevron seals straight onto the shaft. The shaft threads may damage the chevron bore and cause the applicator to malfunction. NOTE > 3. Place male chevron adaptor [4] onto shaft [7] with the convex end rearward. NOTE > Part Items [4], [5], and [6] should seat together to form an unbroken seal. 4. Screw needle tip [3] onto shaft [7] hand tight. NOTE > Apply a light coating of petroleum jelly to the chevron seals. > Seat the u-cup into the retainer very carefully with the eraser end of a pencil or a wood or plastic dowel rod. 10. Place the new o-ring [16] onto retainer [17]. 11. Place retainer [17] over shaft [7] with the open end toward the rear. 12. Place spacer [19] over shaft [7] flanged end first. Seat parts [15], [17], and [19] into the chamber carefully with the flat end of the tubular spanner tool. 13. Place the six (6) spring washers [20] onto shaft [7] with the first, third, and fifth ones cupped side rearward and the second, fourth, and sixth ones cupped side forward. ! CAUTION > There MUST be six (6) spring washers, alternately faced, or the applicator will malfunction. AA-82-01.3 26 REA III 100kV Automatic Applicator - Maintenance 14. Screw packing nut [21] into the chamber and secure it with the spanner wrench. NOTE > The packing nut should be tight enough that shaft [7] slides in and out with firm resistance. 15. Screw trigger adjustment nut [33] onto shaft [7] with the flanged end toward the rear. 16. Screw valve rod extension [23] onto shaft [7] with the flanged end toward the front. NOTE > The hexagonal flanges of [22] and [23] should face each other. Figure 2: Barrel Assembly 17. To adjust [22] and [23]: a. Push shaft [7] fully forward. NOTE > To prevent shaft [7] from rotating, secure it with a wire through the hole at the rear. NOTE > Fluid nozzle [2] must be firmly in place (see Step 6). b. Measure 21/32-inch (16.6mm) from the rear face of packing nut [21] to the rear face of hexagonal flange of the valve rod extension [23]. c. Secure the nut and rod extension together at that dimension by rotating nut [22] rearward until the two will not turn on the shaft. d. Tighten the two by holding rod extension [23] with a 3/8-inch wrench and turning nut [22] against it with another 3/8-inch wrench. 27 AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance Barrel to Body Assembly 1. Remove piston housing [61] from body [26]. ! CAUTION > DO NOT lose parts stored in piston housing. 2. Place gasket [13] into the front body [26] chamber. NOTE 5. Secure the barrel assembly with nut [11] and tighten. ! > Nut [11] should be secured hand tight only. NEVER apply more than 10 lbs•ft (13.5 Nm) torque. 6. With the needle valve and piston shaft [52] fully forward, secure lock nuts [57] and [58] onto extension [23]. Allow 1/16-inch gap between nut [57] and shaft [52]. > Secure the new gasket in place by splitting it at the top and pressing it into the chamber. The top is the broadest of the two large hole margins. CAUTION NOTE > Projection on nut [58] MUST face the rear of the applicator. 3. Place new o-ring [38] on resistor housing [37]. 4. Insert resistor housing [37] into the upper body chamber and slide the barrel assembly straight into the front body chamber over housing [37]. ! CAUTION ! CAUTION > The fluid valve shaft travel MUST be adjusted so that the air valve is always triggered FIRST FIRST. If the air does not turn on BEFORE the fluid, readjust nuts [57] and [58] in relation to shaft [52]. > Be SURE that conductive sponge [36] is in place. If it is not, the applicator will eventually malfunction. 7. Engage fluid tube [69] to barrel [8] with fittings [9] and [10]. NOTE > The needle shaft [7] should engage valve rod extension [23]. AA-82-01.3 28 REA III 100kV Automatic Applicator - Maintenance Resistor Assembly Replacement 1. Remove the high voltage cable (see “High Voltage Cable Replacement” in this section). ! CAUTION > If the conductive sponges are not in place, the applicator will malfunction! 2. Remove the barrel assembly (see “Barrel Removal” in this section). 3. Remove resistor housing tube [31]. 11. Replace the barrel assembly (see “”Barrel to Body Assembly” in this section). 4. Remove screw [29] and [30]. 5. Remove mounting support [27] and resistor housing [37] from the body chamber. 6. Place the new resistor assembly [37] into the body chamber. 7. Place new o-rings [38] and [39] on the new resistor assembly [37]. ! CAUTION > Be SURE that conductive sponge [40] is in place in the resistor housing chamber. 8. Place mounting support [27] in position on body [26] and secure with screws [29] and [30]. 9. Place resistor housing tube [31] over the end of resistor housing [37] and screw it into the body [8]. 10. Install a new conductive sponge [36] in the barrel chamber. 12.Install high voltage cable (see “High Voltage Cable Replacement” in this section). Valve Housing (Body) Service When service is performed on any of the body elements, it is best to remove the barrel assembly and resistor assembly (see “Resistor Assembly Replacement” in this section) in order to avoid damage to the nozzle, electrode or any of the plastic parts. After disassembly of any body element: • Clean all parts with a suitable, clean solvent. • Check all parts for damage or wear. Replace those that are damaged or worn with new parts. • Replace all seals and o-rings. Fluid V alve (T rigger) Valve (Trigger) 1. Disassembly: a. Rotate piston housing [61] to remove it from the valve chamber. b. Remove springs [59] and [60]. NOTE > The old sponge MUST be removed! Use a long wire with one end bent into a hook. c. Turn nut [58] away from nut [57] using appropriate wrenches. d. Remove nuts [57] and [58] from shaft [23]. e. Remove the barrel assembly (see “Barrel Removal” in this section). f. Remove the resistor assembly (see “Resistor Assembly Replacement” in this section). 29 AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance g. Remove valve seal retaining nut [24] and o-ring [25] from the front of the valve chamber using a 3/8-inch nut driver. NOTE > Be SURE that o-ring [51] is in bushing [50]. h. With a flat tipped wood or plastic dowel rod inserted into the front of the valve chamber, push piston assembly [52] through [56] out of the rear of the valve chamber. e. Replace the resistor assembly (see “Resistor Assembly Replacement” in this section). i. Secure piston shaft [52] in a 3/8-inch wrench (on the wrench flats) remove nut [56] with a 9/16-inch socket. f. Replace the barrel assembly (see “Barrel to Body Assembly” in this section). j. Slide piston assembly [53], [54], and [55], from the shaft [52] and disassembly components by hand. g. Place nut [57] on shaft [23] 1/16-inch from piston shaft [52]. k. Remove bushing assembly [50], [48], [49], and [51] from the valve chamber with a 20049-00 wrench. NOTE > See “Barrel Assembly - Step 17” and 2. Assembly: “Barrel to Body Assembly - Step 6” for shaft [23] adjustment. NOTE h. Place nut [58] on shaft [23] and secure against nut [57] using appropriate wrenches. > Replace all o-rings. Replace packing cup [54] if it is worn. i. Place springs [59] and [60] against piston [55] and nut [58] and secure in place by screwing piston housing [61] into the rear of the valve housing. a. Secure retaining nut [24] and o-ring [25] in the front of the valve chamber using a 3/8inch nut driver. b. Secure bushing assembly [50], [48], [49], and [51],in the valve chamber using a 20049-00 wrench. c. Secure shaft [52] in wrench (on 3/8-inch wrench flats) and assembly washers [53], cup [54], and piston [55] on the rear with nut [56] using a 9/16-inch socket. d. Place the piston assembly [52] through [56], into the valve chamber through bushing [50] and press into place. AA-82-01.3 Fan Air Control V alve Valve 1. Disassembly: a. Turn control knob [42] to the open position (fully extended) to accomodate Step b. b. With a 9/16-inch wrench, unscrew retaining nut [43] and remove the entire valve assembly. c. Return the control knob to the closed position. 30 REA III 100kV Automatic Applicator - Maintenance d. Secure control knob [42] in a bench vise and, with a 1/4-inch wrench on the wrench flats, break valve needle [47] free and remove it from the assembly. NOTE > The valve needle is secured with LockTite. f. g. Unscrew control knob [42] to its “open” position. h. Screw retaining nut [43] into the valve chamber with a 9/16-inch wrench. NOTE e. Remove spring [46]. f. Unscrew control knob [42] from retaining nut [43]. g. With a 1/4-inch rod or other small diameter tool, force washers [45] and o-ring [44] out of the retaining nut. 2. Assembly: a. Screw control knob [42] completely into retaining nut [43]. NOTE > Apply a light coating of petroleum jelly With a 1/4-inch wrench on the wrench flats, screw valve needle [47] onto the control knob shaft. Remove the assembly from the vise. > Apply a light coating of petroleum jelly to the retaining nut threads. i. Screw the control knob down to the “closed” position. To Return the Applicator to the Work Site 1. Attach the air line fittings to applicator air fittings [35] and [34]. 2. Attach fluid hose to fluid tube fitting [66]. 3. Attach and secure the high voltage cable. to the control knob threads. 4. Turn the power, air, and fluid ON at the source and return the applicator to service. b. Place one (1) washer [45], o-ring [44], and the other washer [45] onto the shaft of control knob [42]. c. Use the flat end of the tubular spanner tool to seat [45] and [44] in the bore of retaining nut [43]. 31 High V oltage Cable Voltage Replacement 1. Disassembly: a. Unscrew cable retaining nut [32]. b. Pull the high voltage cable straight out of the resistor housing. d. Place spring [46] onto the shaft of control knob [42]. c. e. Secure control knob [42] in the bench vise and put a small amount of medium strength Lock-Tite on the shaft threads. With a thin blade, lift one end of the cable retaining ring out of its groove and spiral it off of the end of the cable. d. Remove retainer [32] from the cable. AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance 2. Assembly: a. Remove the cable retaining ring from the new cable as in the “Disassembly Procedure”. b. Place retainer [32] over the end of the new cable. c. Place the cable retainer ring over the end of the cable and with a blade, lift one end of it into its groove and spiral it into place. d. Insert the high voltage cable into the resistor housing and secure with retainer [32]. AA-82-01.3 NOTES 32 REA III 100kV Automatic Applicator - Maintenance TROUBLESHOOTING GUIDE General Problem Possible Causes Corrective Action DEFECTIVE SPRAY PATTERN: Pattern Will Not Shape Pattern Heavy At One End 1. Clogged or faulty fan valve 1. Clean, replace, or repair fan valve. 2. Air passages in applicator or air feed lines clogged 2. Blow out air passages and air feed lines. 3. Worn, faulty, or clogged air nozzle 3. Clean or replace air nozzle. 1. Clogged or faulty air nozzle 1. Clean or replace air nozzle. 2. Clogged or faulty fluid nozzle 2. Clean or replace fluid nozzle. DEFICIENT DELIVERY: Air 1. Air passages in applicator or air feed lines clogged 1. Blow out air passages and air feed lines. 2. Deficient factory air 2. Increase air. 1. Clogged or faulty fluid nozzle 1. Flush or replace fluid nozzle. 2. Clogged fluid passages in applicator or fluid feed lines 2. Flush fluid passages and fluid feed lines. 3. Insufficient fluid valve needle travel 3. Adjust fluid valve needle. Air 1. Defective valve or valve spring 1. Replace valve or valve spring. Fluid: Any at Rear of Needle Valve Shaft 1. Packing and/or seals faulty 1. Replace packing and/or seals. Fluid: Slight at Nozzle When Trigger is Released 1. Fluid nozzle not secure 1. Tighten fluid nozzle. 2. Air valve closing before needle valve 2. Adjust needle valve travel. Fluid LEAKAGE: 33 AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance TROUBLESHOOTING GUIDE (Cont.) General Problem Possible Causes Corrective Action 1. Worn or damaged needle valve seat 1. Replace fluid nozzle. 2. Worn or damaged needle valve 2. Replace needle valve. 3. Fluid nozzle not secure 3. Tighten fluid nozzle. 4. Fluid valve needle does not close when trigger is released 4. Adjust fluid valve needle travel. 1. Improper grounding 1. Trace and correct. 2. Improper spray technique 2. Trace and correct. * 3. Improper booth exhaust 3. Trace and correct. 1. Dirty of faulty connections 1. Clean and check for proper contact at the conductive plugs and power supply. 2. Missing or faulty conductive plugs at either end of the resistor housing 2. Replace plugs. 3. Improper or no ground 3. Trace and correct. 4. Faulty resistor 4. Replace resistor. 5. Faulty high voltage cable 5. Replace high voltage cable. 6. Faulty power supply 6. See the Power Supply Service Manual. 7. Is the power turned ON? 7. Turn power ON. LEAKAGE (C ont.) (Cont.) ont.):: Fluid: Constant at Nozzle ELECTRICAL: Wrap-back Improper or No High Voltage Flow * See REA Applicator Spray Techniques. AA-82-01.3 34 35 SHORT CIRCUIT CURRENT (SCI) TEST LOW Under 130 microampere NORMAL 130-150 microampere HIGH in excess of 150 microampere SCI TEST USING TEST RESISTOR CURRENT DEMAND TEST NORMAL 130-150 microampere LOW Under 130 microampere HIGH In excess of 100 microampere in applicator 0-50 microampere (no paint in applicator) 0-100 microampere (paint in applicator) NORMAL READING 0-50 microampere (no paint in applicator) 0-100 microampere (paint in applicator) NORMAL READING CURRENT DEMAND TEST HIGH in excess of 150 microampere APPLICA T OR IS APPLICAT DEFECTIVE: BAD RESISTOR POWER SUPPL Y SUPPLY IS DEFECTIVE FLUSH SYSTEM ELECTRICAL SYSTEM: APPLICA T OR & APPLICAT POWER SUPPL Y SUPPLY IS “OK” APPLICA T OR OR APPLICAT POWER SUPPL Y SUPPLY RESISTOR DEFECTIVE SHORT IN APPLICA TOR AT BEFORE TOR APPLICA AT RESISTOR: HV CABLE SHORTED, ETC. HIGH In excess of 50 microampere (no paint in applicator) NORMAL 0-50 microampere NORMAL 130-150 microampere (no paint in applicator) APPLICA TOR AT OR HV CABLE DEFECTIVE RESIST ANCE RESISTANCE OF P AINT PAINT FORMULA TION FORMULATION TOO LOW: PAINT T OO TOO CONDUCTIVE APPLICA TOR AT IS DEFECTIVE BAD RESISTOR POWER Y IS SUPPLY SUPPL DEFECTIVE See the Power Supply Manual for power supply test procedures. REPEA T AT CURRENT DEMAND TEST SCI TEST USING TEST RESISTOR HIGH In excess of 150 microampere EV ALUA TING RESUL TS OF SCI AND CURRENT DEMAND TESTS EVALUA ALUATING RESULTS REA III 100kV Automatic Applicator - Maintenance AA-82-01.3 REA III 100kV Automatic Applicator - Maintenance NOTES AA-82-01.3 36 REA III 100kV Automatic Applicator - Parts Identification PAR TS IDENTIFICA TION ARTS IDENTIFICATION Figure 3a: 37 70393 REA III 100kV Automatic Applicator Exploded View AA-82-01.3 REA III 100kV Automatic Applicator - Parts Identification Figure 3b: AA-82-01.3 70393 REA III 100kV Automatic Applicator Exploded View 38 REA III 100kV Automatic Applicator - Parts Identification AUTOMA OMATIC APPLICAT 70393 REA III AUT OMA TIC APPLICA T OR/ SOLVENTBORNE PAR ARTS SOL VENTBORNE SYSTEMS - P AR TS LIST (Figures 3a and 3b) Item # 1 1A 2 3 4 5 6 7 8 8A 8B 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 39 Description REA III Delta Automatic (Air Spray) Complete Assembly (Solventborne Systems Only): REA III Delta Automatic (HVLP) Complete Assembly (Solventborne Systems Only): Retaining Ring: Swirl HVLP, Air Spray, and Round Air Cap: Flat Pattern, HVLP Flat Pattern, Air Spray Round Pattern, Swirl Round Pattern, Round Fluid Nozzle: Flat Pattern, HVLP Flat Pattern, Air Spray Round Pattern, Swirl Round Pattern, Round Electrode Assembly ---Seal Assembly, Cartridge, Non-Adjustable, REA ---Shaft Assembly, 2-Piece Needle, REA Barrel, REA III Reducer, Pressure, Air Spray, Black Reducer, Pressure, HVLP, White Ferrule Connector, Fluid Tube Nut, Retainer, Barrel (2 Required) Ring, Retaining, Barrel (2 Required) Gasket, Barrel (2 Required) Extension, Barrel Tube, Packing Adjustment O-Ring, Solvent Resistant Retainer, Needle Seal, Rear Seal, Lip, Spring Loaded Spacer, Seal ---Nut, Packing Nut, Locking, Trigger Adjustment Rod Extension, Valve, Fluid Nut, Retaining, Valve Seal O-Ring, Solvent Proof Piston & Valve Body ("CC" Designation): For -10 Bleed Applicators with Manual Fan Air Control For -15 Bleed Applicators with Remote Fan Air Control For -20 Non-Bleed Applicators with Manual Fan Air Control For -25 Non-Bleed Applicators with Remote Fan Air Control Support, Mounting Screw, Set, Square Head (2 Required) Screw, Cap, Socket Head (4 Required) Screw, Cap, Socket Head Support, Tube, Resistor Housing Nut, Retaining, Cable Part # 70393S-BBCC1 70393L-BBCC1 4903-00 73569-00 75601-00 4904-65R 70899-00 LREA0002-00 75600-01 4907-45 70898-00 LREA0003-00 70430-00 ---78626-00 ---78627-06 75037-00 74963-02 74963-03 18844-00 18843-00 LSMM0002 18835-00 18872-00 70431-00 18842-03 7554-08 78629-00 10051-05 78630-00 ---78631-00 78632-00 78786-01 20053-00 13076-10 20947-02 20947-02 20947-01 20947-01 20062-00 8666-20C 8212-20C 8212-16C 20063-00 70439-00 AA-82-01.3 REA III 100kV Automatic Applicator - Parts Identification AUTOMA OMATIC APPLICAT OR/SOLVENTBORNE 70393 REA III AUT OMA TIC APPLICA T OR/SOL VENTBORNE PAR ARTS SYSTEMS - P AR TS LIST (Cont.) (Figures 3a and 3b) Item # 33 34 35 36 37 38 39 40 41 42 43 43A 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 AA-82-01.3 Description Part # Bracket, Fluid Hose Screw, Cap, Socket Head (2 Required) Washer, Lock (2 Required) Fitting, Elbow, 1/4” NPT x 3/8” Tube Atomization Air Fitting, Elbow, 1/8” NPT x 1/4” Tube Trigger Air Plug, Conductive Foam Housing, Resistor O-Ring, Solvent Resistant O-Ring, Solvent Resistant Plug, Conductive Foam Valve Assembly, Fan Control: (Contains Items 42 thru 47) Air Spray HVLP Knob, Control Nut, Retaining, Fan Valve O-Ring, Solvent Resistant O-Ring, Solvent Proof Washer (2 Required) Spring, Compression Needle, Air Spray Needle, HVLP O-Ring, Solvent Proof O-Ring, Solvent Resistant Bushing, Air Valve O-Ring, Solvent Resistant Shaft, Piston & Valve Washer, Piston U-Cup, Packing, Teflon Piston Nut, Lock, Hexagon, Piston Nut, Lock, Hexagon, Air Valve Nut, Adjustment, Air Valve Spring, Compression, Piston Spring, Compression, Fluid Valve Housing, Piston Nut, Knurled Jam Screw, Adjustment Knob, Knurled Set Screw Fitting, Fluid Tube Nut, Hexagon Jam Nut and Ferrule Tube, Fluid Cable Assembly, High Voltage Coiled Fluid Tube: .093" ID .250" ID .125" ID Remote Fan Air Valve: (Contains Items 72 thru 74) (Not Shown) Fitting, Elbow, 3/8” NPT X 3/8” Tube Body, Fitting O-Ring, Solvent Proof 20938-00 8212-16F 7734-04 SSP-6440 SSP-6427 14061-05 70436-00 7554-11 7554-10 14061-08 18851-00 75133-00 77018-00 77019-00 72209-05 13076-08 18833-00 18829-00 18852-00 75132-00 13076-13 7554-33 20054-00 7554-28 20055-00 20057-00 7723-06 20056-00 7733-44 7733-07 20942-00 9334-00 17615-00 20943-00 20945-00 20944-00 20946-00 9697-08C 20993-00 10553-05 3587-02 20939-21 LREA4003-XX 75228-21 75228-22 75228-23 41-FTP-1007 74656-00 72375-02 40 REA III 100 kV Automatic Applicator - Parts Identification AUTOMA OMATIC APPLICAT OR/WA 70393 REA III AUT OMA TIC APPLICA T OR/W ATERBORNE PAR ARTS SYSTEMS - P AR TS LIST (Figures 3a and 3b) Item # 1 1A 2 3 4 5 6 7 8 8A 8B 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 41 Description REA III Delta Automatic (Air Spray) Complete Assembly (Waterborne Systems Only): REA III Delta Automatic (HVLP) Complete Assembly (Waterborne Systems Only): Retaining Ring: Swirl HVLP, Air Spray, and Round Air Cap: Flat Pattern, HVLP Flat Pattern, Air Spray Round Pattern, Swirl Round Pattern, Round Fluid Nozzle: Flat Pattern, HVLP Flat Pattern, Air Spray Round Pattern, Swirl Round Pattern, Round Electrode Assembly ---Seal Assembly, Cartridge, Non-Adjustable, REA ---Shaft Assembly, 2-Piece Needle, REA Barrel, REA-III Reducer, Pressure, Air Spray, Black Reducer, Pressure, HVLP, White ------Nut, Retainer, Barrel (2 Required) Ring, Retaining, Barrel (2 Required) Gasket, Barrel (2 Required) Extension, Barrel Tube, Packing Adjustment O-Ring, Solvent Resistant Retainer, Needle Seal, Rear Seal, Lip, Spring Loaded Spacer, Seal ---Nut, Packing Nut, Locking, Trigger Adjustment Rod Extension, Valve, Fluid Nut, Retaining, Valve Seal O-Ring, Solvent Proof Piston & Valve Body ("CC" Designation): For -10 Bleed Applicators with Manual Fan Air Control For -15 Bleed Applicators with Remote Fan Air Control For -20 Non-Bleed Applicators with Manual Fan Air Control For -25 Non-Bleed Applicators with Remote Fan Air Control Support, Mounting Screw, Set, Square Head (2 Required) Screw, Cap, Socket Head (4 Required) Screw, Cap, Socket Head Support, Tube, Resistor Housing Nut, Retaining, Cable Part # 70393S-BBCC2 70393L-BBCC2 4903-00 73569-00 75601-00 4904-65R 70899-00 LREA0002-00 75600-01 4907-45 70898-00 LREA0003-00 70430-00 ---78626-00 ---78627-06 75037-00 74963-02 74963-03 ------LSMM0002 18835-00 18872-00 70431-00 18842-03 7554-08 78629-00 10051-05 78630-00 ---78631-00 78632-00 78786-01 20053-00 13076-10 20947-02 20947-02 20947-01 20947-01 20062-00 8666-20C 8212-20C 8212-16C 20063-00 70439-00 AA-82-01.3 REA III 100kV Automatic Applicator - Parts Identification AUTOMA OMATIC APPLICAT OR/WA 70393 REA III AUT OMA TIC APPLICA T OR/W ATERBORNE PAR ARTS SYSTEMS - P AR TS LIST (Cont.) (Figures 3a and 3b) Item # 33 34 35 36 37 38 39 40 41 42 43 43A 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 Description Part # Bracket, Fluid Hose Screw, Cap, Socket Head (2 Required) Washer, Lock (2 Required) Fitting, Elbow, 1/4” NPT x 3/8” Tube Atomization Air Fitting, Elbow, 1/8” NPT x 1/4” Tube Trigger Air Plug, Conductive Foam Housing, Resistor O-Ring, Solvent Resistant O-Ring, Solvent Resistant Plug, Conductive Foam Valve Assembly, Fan Control: (Contains Items 42 thru 47) Air Spray HVLP Knob, Control Nut, Retaining, Fan Valve O-Ring, Solvent Resistant O-Ring, Solvent Proof Washer (2 Required) Spring, Compression Needle, Air Spray Needle, HVLP O-Ring, Solvent Proof O-Ring, Solvent Resistant Bushing, Air Valve O-Ring, Solvent Resistant Shaft, Piston & Valve Washer, Piston U-Cup, Packing, Teflon Piston Nut, Lock, Hexagon, Piston Nut, Lock, Hexagon, Air Valve Nut, Adjustment, Air Valve Spring, Compression, Piston Spring, Compression, Fluid Valve Housing, Piston Nut, Knurled Jam Screw, Adjustment Knob, Knurled Set Screw ------------Cable Assembly, High Voltage ---Remote Fan Air Valve: (Contains Items 72 thru 74) (Not Shown) Fitting, Elbow, 3/8” NPT x 3/8” Tube Body, Fitting O-Ring, Solvent Proof Waterborne Fluid Hose Assy: (Contains Items 85 thru 93) (Not Shown) 3/16" ID PE 1/4" ID PE 3/16" ID Teflon 1/4" ID Teflon 20938-00 8212-16F 7734-04 SSP-6440 SSP-6427 14061-05 70436-00 7554-11 7554-10 14061-08 18851-00 75133-00 77018-00 77019-00 72209-05 13076-08 18833-00 18829-00 18852-00 75132-00 13076-13 7554-33 20054-00 7554-28 20055-00 20057-00 7723-06 20056-00 7733-44 7733-07 20942-00 9334-00 17615-00 20943-00 20945-00 20944-00 20946-00 9697-08C ------------LREA4003-XX ---41-FTP-1007 74656-00 72375-02 72306-XX 74180-XX 77036-XX 77037-XX (Continued on Next Page) AA-82-01.3 42 REA III 100kV Automatic Applicator - Parts Identification AUTOMA OMATIC APPLICAT OR/WA 70393 REA III AUT OMA TIC APPLICA TOR/W ATERBORNE SYSTEMS PAR ARTS - P AR TS LIST (Cont.) (Figures 3a and 3b) Item # 85 85A 86 87 88 89 90 91 92 93 Description Part # Ferrule, Nut, Waterborne Spacer, Fluid Connector, Fluid Tube Nut, Fluid Line Ferrule, Conductive Nut, Fluid Line Fitting, Fluid Line Waterborne Fluid Hose: 3/16" ID PE 1/4" ID PE 3/16" ID Teflon 1/4" ID Teflon Nut and Ferrule Fitting, Swivel 72308-00 76993-00 72309-00 3587-02 72315-00 10553-05 72310-00 72307-XX 74179-XX 77038-XX 77039-XX 6241-06 7787-03 PISTON HOUSING CHART 70393-XXX1 = Applciator Assembly W/20947-01 Non-Bleed Body Assembly 70393-XXX2 = Applicator Assembly W/20947-02 Bleed Body Assembly 43 AA-82-01.3 REA III 100kV Automatic Applicator - Parts Identification NOTES AA-82-01.3 44 REA III 100kV Automatic Applicator - Warranty Policies WARRANTY POLICIES LIMITED W ARRANTY WARRANTY ITW Ransburg will replace or repair without charge any part and/or equipment that falls within the specified time (see below) because of faulty workmanship or material, provided that the equipment has been used and maintained in accordance with ITW Ransburg's written safety and operating instructions, and has been used under normal operating conditions. Normal wear items are excluded. THE USE OF OTHER THAN ITW RANSBURG APPROVED PARTS, VOID ALL WARRANTIES. SPARE PARTS: One hundred and eighty (180) days from date of purchase, except for rebuilt parts (any part number ending in "R") for which the warranty period is ninety (90) days. EQUIPMENT: When purchased as a complete unit, (i.e., guns, power supplies, control units, etc.), is one (1) year from date of purchase. WRAPPING THE APPLICATOR IN PLASTIC, ASSOCIATED VALVES AND TUBING, AND SUPPORTING HARDWARE IN PLASTIC, SHRINK-WRAP, OR ANY OTHER NON-APPROVED COVERING, WILL VOIDE THIS WARRANTY. 45 ITW RANSBURG'S ONLY OBLIGATION UNDER THIS WARRANTY IS TO REPLACE PARTS THAT HAVE FAILED BECAUSE OF FAULTY WORKMANSHIP OR MATERIALS. THERE ARE NO IMPLIED WARRANTIES NOR WARRANTIES OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. ITW RANSBURG ASSUMES NO LIABILITY FOR INJURY, DAMAGE TO PROPERTY OR FOR CONSEQUENTIAL DAMAGES FOR LOSS OF GOODWILL OR PRODUCTION OR INCOME, WHICH RESULT FROM USE OR MISUSE OF THE EQUIPMENT BY PURCHASER OR OTHERS. EXCLUSIONS: If, in ITW Ransburg's opinion the warranty item in question, or other items damaged by this part was improperly installed, operated or maintained, ITW Ransburg will assume no responsibility for repair or replacement of the item or items. The purchaser, therefore will assume all responsibility for any cost of repair or replacement and service related costs if applicable. AA-82-01.3 MANUAL CHANGE SUMMAR Y SUMMARY This manual was published to replace Service Manual AA-82-01.2 REA III 100kV Automatic Applicator, to make the following changes: 1. Revised “ Label“ on the “Front Cover”. 2. Revised “Atex Labels 19688, 72562, 76454, 76854, 76896, 77059, 78886, 78894-04, and LEPS0016” in the “Atex” section. AA-82-01.3 Service Manual Price: €25.00 25.00 (Euro) $30.00 (U.S.) Manufacturing 1910 North Wayne Street Angola, Indiana 46703-9100 Telephone: 260/665-8800 Fax: 260/665-8516 Technical/Service Assistance Automotive Assembly and Tier I Industrial Systems Ransburg Guns www.itwransburg.com Telephone: 800/ 626-3565 Fax: 419/ 470-2040 Telephone: 800/ 233-3366 Fax: 419/ 470-2071 Telephone: 800/ 233-3366 Fax: 419/ 470-2071 Technical Support Representative will direct you to the appropriate telephone number for ordering Spare Parts. © 2008 Illinois Tool Works Inc. All rights reserved. Models and specifications subject to change without notice. Form No. AA-82-01.3 Litho in U.S.A. 05/08
© Copyright 2024