WM 360 Wall Mounted Pneumatic Pump for Liquid Adhesive

Transcription

1 Pneumatic Pump for Liquid Adhesive Manual P/N A -- English -- NORDON WALCOM D UDENHOUT D THE NETHERLAND

2 Order number P/N = Order number for Nordson products Notice This is a Nordson Corporation publication which is protected by copyright. Original copyright date No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Nordson Corporation. The information contained in this publication is subject to change without notice. Trademarks AquaGuard, Blue Box, Control Coat, Equi=Bead, FloMelt, FoamMelt, FoamMix, Helix, Hot hot, Hot titch, Meltex, Microet, Multican, Nordson, the Nordson logo, Omnican, Porous Coat, Posi-top, RBX, ure-bond, Unican, UpTime, and Versa-pray are registered trademarks of Nordson Corporation. BetterBook M, CF, Controlled Fiberization, Easy-creen, Fibermelt, Flo-Tracker, PrintGuard, and Package of Values are trademarks of Nordson Corporation. COV_EN_403081A 54 -WM360 -MA -01

3 Table of Contents I Table of Contents Dear Customer Your afety is Important to Nordson... O-1 We Welcome Your uggestions... O-1 Nordson International Europe... O-3 Distributors in Eastern & outhern Europe... O-3 Outside Europe / Hors d Europe / Fuera de Europa... O-4 Africa / Middle East... O-4 Asia / Australia / Latin America... O-4 Japan... O-4 North America... O-4 ection 1 afety 1. afe Operation afety ymbols Qualified Personnel Intended Use Installation and Electrical Connections Operation Less--obvious Dangers Action in the Event of ystem Malfunction Maintenance / Repair Cleaning Liquid Adhesives

4 II Table of Contents ection 2 Description 1. Intended Use Unintended Use --Examples afety instructions Introduction Current Parts List Functioning Method of Operation Air motor Liquid Adhesive Flow ection 3 Installation 1. Unpacking Mounting Implementing two open-jawed wrenches ection 4 Operation 1. General Adhesive Processing Instructions Compatibility of Different Types of Adhesives Emergency hutdown Initial etup Daily tartup Daily hutdown ection 5 Maintenance 1. Preventive Maintenance Daily Periodic Maintenance Internal Cleaning Purge ystem Filter Inspection Grease eal Adapter (Hydraulic) ection 6 Troubleshooting 1. Air Motor Hydraulic Assembly Faults Table

5 Table of Contents III ection 7 Repair/Disassembly 1. Disassemble Entire Pump Air Motor Disassembly Disassembly and eal Replacement Reassembly Replace 5/2 Directional Control Valve Hydraulic Assembly Remove Adhesive Hoses Disassembly Disassembly and eal Replacement Reassembly Adhesive Filter Assembly Filter Cleaning and Replacement ection 8 Parts 1. Use of the Illustrated Parts List Current Parts List pare Parts / Kits Filter Assembly /2 Directional Control Valve Hydraulic Assembly High Pressure Liquid Adhesive Hose Accessories Air Motor Pump Body Complete Air Motor High Pressure Liquid Adhesive Filter ection 9 pecifications

6 IV Table of Contents

7 Introduction O-1 Dear Customer Nordson equipment is engineered and manufactured in accordance with strict specifications, using high-quality components and state-of-the-art technologies that assure reliable, long-term performance. Your product was thoroughly tested for proper operation prior to shipment. Data and specifications included in this manual are accurate at the time of publication. Nordson reserves the right to change the contents of this manual and/or specification without notice. Carefully read the manual first. It is your guide to safe installation, productive operation and effective maintenance. We recommend that you keep the manual available for future reference. Your afety is Important to Nordson Carefully read the afety instructions. Your product is designed for safe operation when used according to the published instructions. However, potential hazards exist when instructions -- particularly safety instructions -- in this manual and all related documentation are not followed. We Welcome Your uggestions If you have any comments or questions concerning Nordson products, spare parts or manuals, do not hesitate to contact Nordson. For addresses see Nordson International. E 1994 Nordson Corporation 54 -WM360 -MA -01 CONG_EN_B -1294

8 O-2 Introduction CONG_EN_B WM360 -MA -01 E 1994 Nordson Corporation

9 Introduction O-3 Nordson International Europe Country Phone Fax Austria Belgium Czech Republic Denmark Finland France Germany Erkrath Lüneburg Italy Netherlands Norway Poland Portugal Russia lovak Republic pain weden witzerland United Kingdom Hot Melt Finishing pectral Technology Distributors in Eastern & outhern Europe Contact: Nordson DED, Germany E 2000 Nordson Corporation 54 -WM360 -MA -01 NI_EN_I -0100

10 O-4 Introduction Outside Europe / Hors d Europe / Fuera de Europa For your nearest Nordson office outside Europe, contact the Nordson offices below for detailed information. Pour toutes informations sur représentations de Nordson dans votre pays, veuillez contacter l un de bureaux ci-dessous. Para obtenir la dirección de la oficina correspondiente, por favor diríjase a unas de las oficinas principales que siguen abajo. Contact Nordson Phone Fax Africa / Middle East DED, Germany Asia / Australia / Latin America Pacific outh Division, UA Japan Japan North America Canada UA Hot Melt Finishing NI_EN_I WM360 -MA -01 E 2000 Nordson Corporation

11 ection 1 afety E 1995 Nordson Corporation

12 1-0 afety E 1995 Nordson Corporation

13 afety 1-1 ection 1 afety 1. afe Operation afety instructions contained in this section and throughout this document apply to tasks that may be performed with the liquid adhesive application system components and the liquid adhesive used. It is very important that these safety instructions are always followed. Failure to do so could result in personal injury, death and/or damage to the system or other equipment. With this in mind, here are some basic safety recommendations: Read and become familiar with the afety section prior to installing, operating maintaining or repairing the system. Read and follow the warnings which appear within the text and are related to specific tasks. tore this document within easy reach of personnel operating or maintaining the system. Wear personal protective equipment such as safety goggles, gloves or respiratory equipment where this is required by peculiarities of the system and/or the material. Familiarize yourself with and follow all safety instructions prescribed by your company, general accident prevention regulations and government safety regulations. E 1995 Nordson Corporation

14 1-2 afety 2. afety ymbols The following symbols are used to warn against dangers or possible sources of danger. Become familiar with them! Failure to heed a warning could lead to personal injury, death and/or damage to the system or other equipment. WARNING: Failure to observe may result in personal injury, death, or equipment damage. WARNING: Risk of electrical shock. Failure to observe may result in personal injury, death, or equipment damage. WARNING: Disconnect equipment from the line voltage. WARNING: Danger! High pressure. Wear safety goggles when working on a liquid adhesive application system. WARNING: Risk of explosion or fire. Fire, open flames and smoking prohibited. WARNING: ystem and material pressurized. Release pressure. Failure to observe may result in serious injury. CAUTION: Failure to observe may result in equipment damage. E 1995 Nordson Corporation

15 afety Qualified Personnel Qualified personnel is defined here as individuals who thoroughly understand the equipment and its safe operation, maintenance and repair. Qualified personnel are physically capable of performing the required tasks, familiar with all relevant safety rules and regulations and have been trained to safely install, operate, maintain and/or repair the equipment. It is the responsibility of the company operating the equipment to see that its personnel meet these requirements. 4. Intended Use The system is designed and intended to be used only for the purpose described in the Description section. Uses not in accordance with that section or as described in this document are considered unintended uses and not in accordance with governing regulations. WARNING: Use of this equipment in ways other than described in this document may result in personal injury, death, or equipment damage. The following actions of the owner or operator of the system are some, but not all, examples of unintended use which would permit Nordson to claim it is not responsible for personal injury or property damage arising from such unintended use: Unapproved modifications or changes to the system Failure to comply with the safety instructions Failure to comply with the instructions concerning installation, use, operation, maintenance or repair, or when these tasks are carried out by unqualified personnel Use of inappropriate or incompatible foreign materials or auxiliary equipment Failure to observe workplace safety rules or regulations issued by government authorities or safety councils. E 1995 Nordson Corporation

16 1-4 afety 5. Installation and Electrical Connections Prior to installation, check intended location and surrounding area for any potential hazards during operation. All electrical, pneumatic, gas and hydraulic connections and installation of all system components may only be carried out by qualified personnel. Observe installation instructions for components and accessories. Equipment must be properly grounded and fused according to the rated current consumption (see ID plate). Cables which run outside the system must regularly be checked for wear or damage. Power supply wire gauge and insulation must be sufficient to handle rated current consumption. Cables must never be squeezed or pinched. Do not locate cables or hoses in high traffic areas. Check liquid adhesive feed hoses, screwed connections and compressed air lines regularly for leaks. These are to be replaced at the first signs of cracks, brittleness etc. Release system pressure completely beforehand. WARNING: Failure to install the system properly, and especially failure to ensure electrical, pressurized and high pressure feed connections are made correctly may result in serious injury or death. 6. Operation The system should only be operated when it is in working order. It should only by operated by qualified persons following all regulations valid for liquid adhesive systems. Never allow the system to be operated by personnel under the influence of substances which reduce their reaction times, or who are not able to operate the equipment for physical reasons. Prior to each startup of the system, check protection and warning devices and make sure they are fully functional. Do not operate the equipment if these devices are not functioning properly. When the removal of safety equipment is required for installation, maintenance or repair, it must be reconnected immediately upon completion of the work. In a humid environment, only equipment featuring a corresponding class of protection may be operated. Do not operate the system in an explosive environment. E 1995 Nordson Corporation

17 afety Operation (contd.) Keep parts of the body and clothing away from rotating parts. Do not wear loose articles of clothing when operating or servicing equipment with rotating parts. Remove wrist watches, rings, necklaces or similar jewelry and pin up or cover long hair before performing any work on or with the equipment. The wearing of protective gloves may prove hazardous in certain circumstances where rotating parts are present and may therefore be forbidden. To carry out measurements on the substrate or system components, switch off parent machine and/or system and wait until the equipment comes to a standstill. Never point guns or applicator nozzles at yourself or other persons. Less- obvious Dangers WARNING: An operator or service technician working with the equipment should be aware of the less--obvious dangers that often cannot be completely minimized at production sites: Pressurized system components The possibility that electrical potentials may remain in the system after the system was de--energized Liquid adhesive vapors Hydraulically or pneumatically operated system components Uncovered winding parts Action in the Event of ystem Malfunction If the system malfunctions, switch it off immediately. Turn the main switch off, or use emergency stop switch or similar safety feature as provided. After equipment has come to a standstill and before reoperating it, have it repaired by qualified personnel. E 1995 Nordson Corporation

18 1-6 afety 7. Maintenance / Repair Allow only qualified personnel to perform the procedures described in this document. Work should only be carried out on a completely depressurized system, following all safety procedures. NOTE: Depending on the configuration of the liquid adhesive application system, high pressure may remain between application head(s) and pressure regulator or pump/s even after the system has been switched off using the main switch or the emergency stop. This especially applies to multi--hose configurations between pump/s and application head/s. Prior to maintenance and repair work it is therefore essential to ensure that all liquid adhesive application system components are depressurized as follows: 1. Release input pressure in front of pump by shutting off customer compressed air supply. 2. Release any remaining system pressure behind the pumps by manually operating the application heads. ecure pneumatically-- and hydraulically--operated equipment against uncontrolled movement. witch off system electrically. WARNING: ome voltage is still present in the control cabinet even after equipment has been turned off at the main switch. Complete the following steps prior to maintenance or repair: 1. Disconnect external power supply. 2. Lock out external power supply. 3. Check no voltage is present. 4. Ground and short. 5. Cover nearby live sections. If liquid adhesive application system is left idle for extended periods (e.g. overnight or long breaks) Nordson recommends applying Vaseline to the application head nozzles to prevent them from drying out and becoming blocked as a result. Only use genuine Nordson parts. E 1995 Nordson Corporation

19 afety Cleaning NOTE: Always refer to the liquid adhesive manufacturer s Material afety Data heet or material information sheet before working with any cleaning fluids. WARNING: Never clean any aluminium part or flush any system using halogenated hydrocarbon fluids. Examples of common halogenated hydrocarbons are: dichloromethylene, 1,1,1--trichloroethylene and perchlorethylene. Halogenated hydrocarbons may react violently with aluminium parts. Never use an open flame to clean the system or its components. Check that (warm) water can be used to clean the liquid adhesive system components, possibly with the addition of household washing--up liquid. If this is not possible, use only the cleaning fluid stated in the liquid adhesive manufacturer s information. If the manufacturer recommends heating the cleaner, note the flash point. Ensure sufficient room ventilation to draw off vapors. WARNING: Fire, open flames and smoking are prohibited when cleaning fluids are used. Observe all explosion prevention regulations. Cleaning fluids may only be heated using temperature controlled and explosion--protected heaters. Disposal must be according to the waste key in the DIN afety Data heet. Liquid adhesives or residue, solvent or separating agents must not be released into open waterways. In the case of a leak or spillage, contain liquid and if necessary use an absorbant material e.g. sawdust to soak it up; then proceed according to the relevant waste disposal regulations. If the liquid adhesive application system is to be idle for an extended period, the entire system should be flushed and outlets sealed with Vaseline. Warm water is usually used to flush application systems with which water based liquid adhesives are processed. If the liquid adhesive manufacturer specially recommends a flushing agent, the manufacturer s safety and disposal details must be followed. E 1995 Nordson Corporation

20 1-8 afety 9. Liquid Adhesives As there is a wide variety of liquid adhesives available with different compositions and characteristics, it is impossible here to give an exhaustive list of safety notes reflecting the typical characteristics of liquid adhesives. The use of liquid adhesives in Nordson s liquid adhesive application systems therefore requires reference to the liquid adhesive manufacturer s documents beforehand. Information relating to safety aspects e.g. concerning solvent content, hazards and countermeasures in the event of liquid adhesive coming into contact with skin or mucous membranes are contained in the technical data sheets and the DIN afety Data heets from the manufacturer. NOTE: Always refer to the manufacturer s Material afety Data heet or material information before working with any liquid adhesives. It may be necessary to refer to the manufacturer s notes on the use of materials from a third party. These may be required for processing a liquid adhesive, but hazards arising from their use are not necessarily mentioned by the manufacturer of the liquid adhesive. Liquid adhesives may still give off vapors when they are processed correctly. The smell produced can cause some annoyance. This is especially true where liquid adhesives are used that contain solvent, thus requiring the use of breathing equipment e.g. a filter. If the prescribed processing conditions are not followed, harmful decomposition products may develop. Therefore, the vapors must be removed. Wash hands well before breaks and when work is finished. If liquid adhesive comes into contact with eyes or mucous membranes, rinse well with water -- especially the eyes. Change damp clothes, and seek medical advice if it is swallowed. Disposal must be according to the waste key in the DIN afety Data heet. Liquid adhesives or residue, solvent or separating agents must not be released into open waterways. In the case of a leak or spillage, contain liquid and if necessary use an absorbant material e.g. sawdust to soak it up; then proceed according to the relevant waste disposal regulations. If solvents or separating agents are used to process a liquid adhesive, follow the safety and disposal information from the manufacturer. E 1995 Nordson Corporation

21 ection 2 Description

22 2-0 Description

23 Description 2-1 ection 2 Description 1. Intended Use WM 360 wall mounted pneumatic pumps are specially designed for the pressurized feeding of liquid adhesives from standard adhesive containers. They are pneumatically driven. Any other use is not considered as an intended use and is carried out at the operator s own risk. Nordson is not liable for personal injury or equipment damage resulting from unintended use. Applying the product for the intended use also includes meeting the operating, service and maintenance conditions prescribed by the manufacturer. The product described here is only to be operated, serviced and maintained by persons who are familiar with the product and potential hazards of the system s operation. The respective rules for prevention of accidents as well as any other commonly recognized safety regulations and industrial health regulations must be observed. Unintended Use - Examples- The pneumatic pumps may not be used under the following conditions: In a defective condition In an explosive atmosphere Without a reliable air pressure supply control In surroundings which do not correspond to the unit s Degree of Protection requirements With unauthorized modifications.

24 2-2 Description Unintended Use - Examples- (contd.) The pneumatic pumps may not be used to process the following materials: Explosive and inflammable materials Pressure-sensitive materials Latex materials Foodstuffs. afety instructions The safety regulations must be read prior to installation and followed during installation and initial operation. The specific safety instructions are part of this instruction manual. For further questions, please contact Nordson.

25 Description Introduction The wall mounted pneumatic pumps WM 360 can be used independently of standardized adhesive containers because the adhesive is drawn by means of a suction hose. Purge of excess adhesive (e.g. during start up) is performed via a purge hose which feeds directly to the adhesive container. The pump is mounted on the wall by means of a bracket. This makes it easy to remove for cleaning and maintenance work. The adhesive suction hose has a maximum length of 1.5 m (59.0 in.). The standard unit has a pump ratio of 12 : 1. By implementing a retrofitting kit, the pump ratio can be reduced to 6 : 1 (refer to ection Parts). To reduce the possibility of corrosion, all pump surfaces which come into contact with moisture are made of stainless steel or special plastics. The pumps are constructed to enable easy handling and for maximum durability and service life. tainless steel containers with level control and automatic refill are available on request. A range of (automatic) pressure regulators are available for selection according to the application. NOTE: In the following sections, the pneumatic pump is referred to simply as the pump. This is a collective term which encompasses the air motor, hydraulic and filter assemblies and the optional adhesive pressure regulator. Current Parts List The units described in these instructions are standard version units -unless otherwise specified. Units with individual equipment can be different in details. However, in such cases, we will make every effort to enclose specific information. Please refer to the updated Bill of Material which is packed with your equipment. For further questions, please contact Nordson.

26 2-4 Description Electric Compressed air Adhesive x Fig. 2-1 Principle Drawing 1. Compressed air supply 2. Proportional valve 3. WM 408 (front view) 4. WM 408 (rear view) 5. Pulse amplifier 6. Encoder 7. Plug connection 8. Adhesive gun 9. Adhesive pattern (belongs to Gun 8) 10. ubstrate 11. Transport belt 12. Photo cell 13. Adhesive sensor 14. Control unit monitoring system (rear view) 15. Printer module monitoring system (optional) 16. Control unit monitoring system (front view) 17. Adhesive sensor 18. Adhesive container 19. Adhesive pressure regulator 20. Adhesive pattern (belongs to Gun 21) 21. Adhesive gun 22. Photo cell 23. Filter assembly 24. Pneumatic pump WM 360

27 Description Functioning This section explains the principles of functioning of the pattern control in connection with a wall mounted WM 360 pneumatic pump according to the adjacent diagram. Adhesive is to be applied to a substrate (10). The substrate is transported on the conveyor belt of the production machine (also referred to as parent machine) and passes the guns (8 and 21). When the substrate arrives, the photo cell (22) detects the leading edge and the controller WM 408 initiates the selected program. NOTE: In general, a production machine is a machine in which Nordson-WALCOM equipment for adhesive application is integrated (for example a packaging machine). The term production machine means the same as parent machine which may appear in other Nordson literature. The encoder (6) is mechanically coupled to the conveyor belt of the production machine via a gear box. It supplies one pulse per mm. This enables easy programming of the WM 408 pattern controller because all necessary lengths can be entered in millimeters. After the photo cell has triggered the program, the controller calculates when the adhesive guns (8, 21) have to be activated, according to the speed of the production machine. The adhesive is fed from the adhesive container (18) via the pump and filter (24 and 23) to the adhesive pressure regulator (19). Depending on the position of the diaphragm in the pressure regulator, the adhesive arrives at the guns (8 and 21) with a high or low pressure. The lower part of the principle drawing depicts a liquid adhesive detection system WM 500 (14-16). It serves for checking the application of adhesive and can be used for controlling subsequent equipment, such as that for separating or marking waste.

28 2-6 Description 4. Method of Operation This section describes the way in which the pneumatic unit operates and the resulting flow of adhesive in the hydraulic assembly. First of all, familiarize yourself with the components in the entire pump unit by referring to the diagram below x Fig. 2-2 Pneumatic Pump WM Mounting plate 2. Plugs for optional adhesive pressure regulator 3. Air motor 4. Muffler 5. Top cover air motor 6. Top cover adhesive filter assembly 7. Air pressure regulator with manometer 8. 5/2 directional control valve 9. Hose connection fitting (adhesive gun) 10. Filter assembly 11. Adhesive pressure hose 12. Adhesive purge hose 13. Adhesive purge hose 14. Adhesive suction hose 15. Connection piece (adhesive purge hose) 16. Hydraulic assembly 17. Lubricating nipple for seal adapter 18. Pump bracket 19. Purge valve

29 Description Method of Operation (contd.) Air motor Air supply to move the piston x Fig. 2-3 WM 360 Air motor 1. Compressed air supply 2. 5/2 directional control valve 3. Air distributor 4. Valve control bore 5. Upper cylinder 6. Lower cylinder 7. Valve control bore ee Fig The compressed air is supplied to the air motor via a quick-snap connector on the pressure regulator (1) where it is adjusted to an application-specific pressure of kpa (0.4-4 bar / 6-58 psi). Compressed air enters the 5/2 directional control valve (2) which directs it via an air distributor (3) through boreholes ( ) to the upper and lower cylinders (5 and 6). The alternation of air entry into the cylinders is initiated when the pistons pass the valve control bores (4 and 7). The compressed air moves the pistons up and down, resulting in a corresponding up and down movement of the hydraulic assembly piston rod (8, Fig. 7-1). CAUTION: Ensure that the air motor starts up with a very low pressure. CAUTION: Only use unlubricated, dry and filtered compressed air for operating the air motor.

30 2-8 Description 4. Method of Operation (contd.) Liquid Adhesive Flow ee Fig The liquid adhesive in the container is pumped by the hydraulic assembly (16) through the suction hose (14) to the filter assembly (10). Foreign particles which may be in the adhesive material are filtered here. Finally, the liquid adhesive is fed through the filter outlets directly to the system gun(s) or the inlets of the optional adhesive pressure regulator (WM 35X or WM 370 series). The outlets of these regulators are connected to the adhesive guns. For pressure relief and/or for maintenance (cleaning), the liquid adhesive can be re-directed by means of the purge valve (19) into the hydraulic assembly and through the adhesive purge hose (13) to the container. ee Fig 8-7. The hydraulic portion from the pump is a dual action type. As the plunger rod (1) moves up, the large ball (11) check valve is lifted off its seat, sucking adhesive into the chamber from the glue suction hose. The small ball (8) check valve remains on its seat during this time because the pump shaft is moving up. The upward movement of the plunger (7) at the lower end of the plunger rod pushes the adhesive above it into the high pressure hose and from there to the adhesive filter. As the plunger rod (1) moves down, the adhesive pressure forces the large ball (11) check valve against its seat and the small ball (8) off its seat, allowing the adhesive to move up the pump cylinder and into the high pressure hose. NOTE: The pump is a bleeding type pump, this means that the pump allows a small portion of adhesive to leak past the rod seal (3). The adhesive then pushes against a ball (35) and flows back through the hose (27) into the adhesive container. Even when no adhesive is dispensed by the glue guns the plunger rod will move up and down when air input pressure is applied on the air motor. This will especially show up when running water or a low viscous adhesive through the pump.

31 ection 3 Installation

32 3-0 Installation

33 Installation 3-1 ection 3 Installation WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. 1. Unpacking After removing the pneumatic pump from the packing materials, inspect it for any damage that may have occurred during shipment. The WM 360 wall mounted pneumatic pumps for liquid adhesives are supplied from the factory completely preassembled. 2. Mounting NOTE: In order to minimize the pressure drop over the adhesive hoses, they should be kept as short as possible. Refer to ection Parts for standard lengths of high pressure liquid adhesive hoses available. NOTE: The liquid adhesive container should be positioned where it is easily accessible for regular container change or refilling. Carry out the following steps for installation: 1. Fix the pump bracket at a suitable location on the wall. NOTE: The lengths of the adhesive suction and purge hoses are limited to 1.5 m (5.9 in.). This must be taken into account! 2. Unscrew the connection piece (15, Fig. 2-2) for the adhesive purge hose from the pump hydraulic assembly (16, Fig. 2-2) with a special wrench. 3. Connect the adhesive suction hose (14, Fig. 2-2) to the connection piece (12, Fig. 7-1) and fix using hose clamps. 4. lide the connection piece (15, Fig. 2-2) for the adhesive purge hose over the suction hose and screw to the pump hydraulic assembly (16, Fig. 2-2). 5. lide the adhesive purge hose over the suction hose, attach to the connection piece (15, Abb. 2-2) and fix using hose clamps. 6. Mount the entire pneumatic pump in the pump bracket.

34 3-2 Installation 2. Mounting (contd.) 7. Connect the pump air motor to the compressed air supply network. Implementing two open-jawed wrenches If a quick-snap connector is not used to connect the compressed air line, use a second open-jawed wrench to prevent the hose connection fitting on the unit from turning. NOTE: The air supply may be a maximum of 15 l/min at 4.5 bar (4 gal/min at 62 psi) CAUTION: Use only unlubricated, dry, filtered compressed air for operating the air motor.

35 ection 4 Operation

36 4-0 Operation

37 Operation 4-1 ection 4 Operation WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. 1. General Adhesive Processing Instructions NOTE: The following information is particularly important for the processing of liquid adhesives but is also applicable to other materials: Always pre-test the unit before applying it for its ultimate purpose. The surface to be bonded should be at room temperature and free of dust, grease and moisture. The suitable material, optimum working conditions, and possible pre-treatment of the substrate must be determined by testing. ome substrates contain softeners and other components which may become volatile later. ome surfaces are treated with wax, lubricants, etc. Bonding may fail immediately or later if pre-treatment/tests are not carried out. 2. Compatibility of Different Types of Adhesives NOTE: Not all types of adhesive are compatible. Degradation of the adhesive resulting in function faults and unit damage may be the result of improper use of the adhesive. We are only the supplier of the pneumatic pump and cannot be held liable for damages to equipment, hoses or guns if adhesives congeal due to incorrect handling. In case of doubt and/or if planning to change the adhesive, please contact the adhesive manufacturer, our head office or one of our representatives.

38 4-2 Operation 3. Emergency hutdown Familiarize yourself with the Emergency hutdown devices on your Liquid Adhesive Application ystem. WARNING: witch off the system immediately in any emergency situation. 1. Activate the nearest Emergency hutdown device (e.g. Emergency OFF button or main switch with Emergency OFF function). 2. When the unit has come to a standstill, and before switching it on again, ensure the fault is cleared by qualified personnel. 4. Initial etup Ensure that all connections have been properly made -- including those which do not concern the pneumatic pump directly. 1. Turn the air pressure regulator knob fully counterclockwise so no air pressure is currently applied to the pump. 2. Connect the pump to the compressed air supply with a quick-snap connector. 3. Insert the pneumatic pump adhesive hoses in the adhesive container and open the adhesive purge valve (19, Fig. 2--2). 4. lowly open the pressure regulator to supply air pressure to the pneumatic pump. 5. Regulate the pump so that adhesive flows smoothly out of the purge valve and no more air bubbles are in the adhesive material. 6. Activate the adhesive guns and adjust the control unit so that adhesive material flows smoothly out of the gun(s) and purge valve. 7. Close the purge valve. 8. Connect pattern plates or nozzles to the gun(s). 9. Check all connections for any signs of leakage; tighten them, if necessary.

39 Operation Inital etup (contd.) 10. et the required adhesive output. -- observe the system s adhesive manometer (if provided). -- evaluate the application-specific adhesive quantity. The adhesive output depends on: Viscosity of the adhesive material Orifice diameter Pump pressure NOTE: Reducing the pump pressure, by turning the pressure regulator knob counterclockwise, reduces the adhesive output. Increasing the pump pressure, by turning the pressure regulator knob clockwise, increases the adhesive output. CAUTION: Do not exceed the maximum permissible pump pressure. Too high a pressure may change the characteristics of the adhesive. CAUTION: Due to the design of the high pressure filter (with a ball valve), adhesive pressure is not completely relieved purely by setting the pneumatic pressure to 0. Also ensure that the purge valve is also opened to guarantee complete adhesive pressure relief. Failure to do this may cause the adhesive to escape unexpectedly. 5. Daily tartup 1. Check the level of adhesive in the container. 2. Refill or change the container, if necessary. 3. et the pump air pressure to the required level. Observe the instructions above. 6. Daily hutdown 1. Reduce pump pressure to zero using the air pressure regulator. 2. Open the purge valve to ensure complete adhesive material pressure relief.

40 4-4 Operation

41 ection 5 Maintenance

42 5-0 Maintenance

43 Maintenance 5-1 ection 5 Maintenance WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. The wall mounted pneumatic pump WM 360 for liquid adhesives is easy to maintain and, under normal operating conditions, all components have a long durability. Always observe the following basic points: Make sure that the material to be applied is in a clean, filtered condition. Individual operating conditions and different application material require a corresponding minimum effort for maintenance. Use soft brushes, never sharp metallic tools, to clean the outside of the equipment, e.g. nozzle tips. When carrying out repair or maintenance work, keep the working space as well as the equipment as clean as possible. Before servicing equipment, relieve any pressure and disconnect material feed lines. WARNING: Disconnect the power supply to all system components! WARNING: Disconnect compressed air and adhesive supply! WARNING: Wear safety goggles and protective gloves. WARNING: ystem and material are pressurized. Disconnect compressed air supply.

44 5-2 Maintenance 1. Preventive Maintenance Daily Remove dirt particles and adhesive material residue from the pump. Periodic Maintenance Internal Cleaning Intervals for a periodic internal cleaning (flushing) of the pump must be determined by customer-specific work experience, e.g. in respect of the adhesive material used. 1. et the pump pressure to 0 bar. 2. Place a container filled with water under the pump. CAUTION: Due to the design of the high pressure filter (with a ball valve), adhesive pressure is not completely relieved purely by setting the pneumatic pressure to 0 bar. Ensure that the purge valve is also opened to guarantee complete adhesive pressure relief. Failure to do this may cause the adhesive to escape unexpectedly. 3. Connect the pump to the compressed air supply. 4. Close the purge valve (19, Fig. 2-2). 5. Increase the pump pressure to approx. 40 kpa (0.5 bar/7.25 psi). 6. Trigger the liquid adhesive gun(s). 7. et pump pressure to 0 bar again. 8. Open the purge valve (19, Fig. 2-2). 9. Increase the pump pressure to 40 kpa (0.5 bar/7.25 psi). The water is pumped back into the container via the filter. 10. et the pump pressure to 0 bar again. 11. Ensure the adhesive material pressure is fully relieved before removing the pump from the water container. CAUTION: Make sure that no water remains in the pump after flushing. Mixing water and liquid adhesive material may affect the adhesive quality.

45 Maintenance 5-3 Periodic Maintenance (contd.) Purge ystem Check the whole system once a month with water. Filter Inspection The high pressure filter must be inspected once a month. ee Fig Relieve the system pressure completely. CAUTION: Due to the design of the high pressure filter (with a ball valve), adhesive pressure is not completely relieved purely by setting the pneumatic pressure to 0 bar. Also ensure that the purge valve is opened to guarantee complete adhesive pressure relief. Failure to do this may cause the adhesive to escape unexpectedly. 2. Remove the cover (1) from filter housing (6). 3. Remove the pressure spring (2), spring adaptor (3) and filter (5). The filter gauze must be replaced if it is soiled or damaged. 4. Place filter, spring adaptor and pressure spring back in the filter housing. 5. Clean the O-ring (4) and lubricate it lightly with silicone paste. 6. Clean threaded and through holes of the housing and cover. Apply a little silicone paste (Nordson WALCOM P/N ) to them. 7. crew the cover (1) on the filter housing. An air gap of approx. 0.5 to 1 mm must remain visible to indicate correct mounting. CAUTION: Due to the design of the high pressure filter (with a ball valve), adhesive pressure is not completely relieved purely by setting the pneumatic pressure to 0 bar. Also ensure that the purge valve is opened to guarantee complete adhesive pressure relief. Failure to do this may cause the adhesive to escape unexpectedly. Grease eal Adapter (Hydraulic) The seal adapter must be greased once a week. To do this, put the grease gun on the lubricating nipple (17, Fig. 2-2). Grease gun and grease cartridge see ection Parts.

46 5-4 Maintenance

47 ection 6 Troubleshooting

48 6-0 Troubleshooting

49 Troubleshooting 6-1 ection 6 Troubleshooting WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. 1. Air Motor The air motor consists of two cylinders, two pistons and a 5/2 directional control valve. Faults in the air motor are identified as follows: Air leakages in the motor or control valve indicate defective sealing. All seals must be replaced. Power loss in the bottom or top area of the motor indicates a defective control valve. Control valve and corresponding seals must be replaced. 2. Hydraulic Assembly The hydraulic assembly consists of a cylinder, piston, feed valve and suction valve. Faults in the hydraulic section of the system are due to the filter, hoses or the adhesive valves. Faults in the hydraulic assembly are identified by the irregular action of the air motor. Irregular action includes failure of the pump, a too rapid pump action or an idle stroke.

50 6-2 Troubleshooting 3. Faults Table The troubleshooting tables serve as an orientation for qualified personnel; however, in respect of the entire liquid adhesive application system, they do not replace definitive troubleshooting with the help of e.g. wiring diagrams and measuring instruments. Neither do they refer to all possible problems, but only to those which are most typical. The following errors are not considered by the troubleshooting tables: Installation errors Operation errors Defective cables/hoses Loose plug and/or screw connections Problem Possible Cause Corrective Action Pump fails Compressed air supply faulty Check the air pressure on the pump manometer and air supply network manometer Pump running too rapidly ingle pump stroke Pump functioning but no pressure build-up Pump making short strokes 5/2 directional control valve defective Piston seal of the air-motor damaged or worn Pump pressure too high Damaged high pressure hose (adhesive leakage) Adhesive container empty Piston seal or piston in the hydraulic assembly damaged or worn Feed valve does not close (polluted) Adhesive container empty Viscosity of the adhesive material too high Piston seal or piston in the hydraulic assembly damaged or worn Air-motor muffler clogged (4,Fig.2-2) Replace valve Replace seal Reduce pump pressure Replace high pressure hose Refill or change the container Replace piston seal or piston Run pump at different speeds to remove pollutants and clean ball valve Refill or change the container Use an adhesive material with lower viscosity. When in doubt contact Nordson WALCOM or the adhesive supplier Replace piston seal or piston Clean muffler Gun(s) clogged Filter polluted or defective Check filter and replace, if necessary

51 ection 7 Repair/Disassembly

52 7-0 Repair/Disassembly

53 Repair/Disassembly 7-1 ection 7 Repair/Disassembly WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. Relieve the system pressure completely before starting any repair/disassembly work. CAUTION: Due to the design of the high pressure filter (with a ball valve), adhesive pressure is not completely relieved purely by setting the pneumatic pressure to 0. Also ensure that the purge valve is open to guarantee complete adhesive pressure relief. Failure to do this may cause the adhesive to escape unexpectedly. The wall mounted pneumatic pump WM 360 is comprised of the following assemblies which are mounted on or under a mounting plate: Air motor with 5/2 directional control valve Hydraulic assembly Adhesive filter assembly Adhesive pressure regulator(s) (optional) Before disassembling the air motor, hydraulic and adhesive pressure control assemblies, always remove the entire pump. The pump may only remain mounted to replace the adhesive filter and 5/2 directional control valve. 1. Disassemble Entire Pump Refer to Fig et the air pressure supply to 0 and release the quick-snap connector fromthe compressed air hose (5). 2. Remove the adhesive hose from the filter (1) or the pressure controller used. 3. Lift the entire pump with adhesive hoses (13 and 14) from the wall.

54 7-2 Repair/Disassembly 2. Air Motor Refer to Fig. 7-1 The air motor is a component part of the WM 360 and is located above the mounting plate (19) directly over the intermediate adapter (7). Before the air motor can be disassembled, the pump must be removed from the wall (refer to Disassemble Entire Pump). NOTE: Nordson-WALCOM recommends replacing all seals following disassembly of the air motor. Worn or distorted seals can lead to leakage. Disassembly 1. Remove the protective grid below the mounting plate. 2. Pull the retaining wire (6) from the piston rod using pointed pliers. 3. Remove the air motor cover (3). 4. crew out the piston rod (2) in the air motor from the piston rod (8) in the hydraulic assembly using a screwdriver. NOTE: Never unscrew the lubricating nipple (9) beforehand, otherwise it is possible that the seal adapter in the hydraulic assembly will turn with it. 5. Remove the air motor retaining screws (20). They can be accessed from the underside of the mounting plate. Disassembly and eal Replacement Refer to Fig Move the piston rod (8) from the bottom to the top. Remove the retaining rings (1) with pliers. 2. Move the piston rod with a plastic hammer downwards by tapping lightly to remove the piston rod from the piston. If necessary, use a screwdriver to press out. 3. Remove the upper piston (2) and located below retaining ring. 4. Pull out the piston rod (8) from the cyclinder from the bottom. 5. Pull the retaining ring (7) and lower piston (2) from the piston rod.

55 Repair/Disassembly Air Motor (contd.) 6. Remove the 4 retaining screws from the guide plate (9) and then remove the guide plate. NOTE: The guide plate can be removed by tapping with the palm of the hand on the lower end of the cylinder. 7. Replace the glide ring and O-ring (4 and 5) on the guide plate. 8. Replace O-rings (3 and 6) on the piston rod. 9. Replace the piston rings (2) on the piston. Reassembly Reassembly is performed in the reverse sequence to the disassembly described above. NOTE: Lightly grease O-rings (3, 5 and 6, Fig. 8-6) after installation. NOTE: Do not interchange the retaining washers. The large retaining washers belong to the lower piston, the small ones to the upper piston. Install retaining washers so that the sharp-edged side does not make contact with the piston. NOTE: When installing the air motor, note the markings on the intermediate adapter (7, Abb. 7-1). They must form a straight line with the 5/2 directional control valve. NOTE: Tighten the air motor (4, Abb. 7-1) before screwing the two piston rods. NOTE: Grease the threads in the hydraulic assembly piston rods (8, Fig. 7-1) before screwing tight. Only use lubricants recommended by Nordson. NOTE: After tightening the two piston rods, reinstall the retaining wire (6, Fig. 7-1). Replace 5/2 Directional Control Valve Refer to Fig Remove screws (3) and then the 5/2 directional control valve (2) and seal (1). 2. Clean the mounting surface of the air motor thoroughly. NOTE: Never use metallic or sharp-edged tools. These may damage the surface. 3. Install a new 5/2 directional control valve. NOTE: Always replace both the 5/2 directional control valve and seal.

56 7-4 Repair/Disassembly WM34500.A4--C Fig. 7-1 Pneumatic Pump WM 360 for Wall Mounting

57 Repair/Disassembly Hydraulic Assembly The pump must be removed from the wall before the hydraulic assembly can be disassembled (refer to Disassemble Entire Pump). Refer to Fig. 7-1 Remove Adhesive Hoses 1. Unscrew the lower connection piece (15) with a special wrench and pull off the purge hose (14) downwards over the adhesive suction hose (13). 2. Unscrew the 4 retaining screws on the connection piece (12) for the adhesive suction tube (13). NOTE: In the upper part of the connection piece (12) is a ball and square above it a short rod. Keep this safe! 3. Remove the pressure hose (17) from the hydraulic assembly connection (10). 4. Loosen the hose clamps (16) and remove the purge hose. Disassembly Refer to Fig Remove the protective grid from below the mounting plate. 2. Pull the retaining wire (6) from the piston rod using pointed pliers. 3. Remove the cover from the air motor (3). 4. Remove the air motor piston rod (2) from the hydraulic assembly piston rod (8) with a screwdriver. NOTE: Never unscrew the lubricating nipple (9) beforehand, otherwise it is possible that the seal adapter in the hydraulic assembly will turn with it. 5. crew out the lubricating nipple (9). 6. Unscrew the hydraulic assembly retaining screws (18) and remove the hydraulic assembly (10).

58 7-6 Repair/Disassembly 3. Hydraulic Assembly (contd.) Disassembly and eal Replacement Refer to Fig Remove the piston rod (8) with seal adapter (9) from the hydraulic cylinder. 2. Remove O-ring (3) and seal adapter (9) from the piston rod (8). 3. Remove the piston rod seal (5) and O-ring from the pistion rod. 4. crew out the lower part of the piston rod using a special wrench and remove the piston (7). 5. Lever out the wiper blade, quad-ring and U-cup (1, 2 and 4) from the seal adapter (9). Refer to Fig Unscrew the purge opening screw plug (11, Fig. 7-1). Remove the pressure spring and ball and clean them. NOTE: Nordson-WALCOM recommends replacing certain parts after disassembling the hydraulic assembly. For this purpose, a range of hydraulic kits are available. Refer to Hydraulic Assembly in ection Parts. Reassembly Reassembly is performed in the reverse sequence to the disassembly described above. NOTE: Lightly grease the quad-ring (2, Fig. 8-4) and U-cup (4, Fig. 8-4) after installation! NOTE: When unscrewing the hydraulic assembly, ensure that its markings form a straight line with the lubricating nipple holes. Insert the lubricating nipple early enough to prevent twisting the seal adapter. NOTE: After assembly, place the grease gun on the lubricating nipple and apply grease until it escapes on the piston rod. Only use lubricants recommended by Nordson. Refer to ection Parts for grease gun and grease cartridges. NOTE: crew the air motor tight before tightening the two piston rods. NOTE: After tightening, reinsert the retaining wire in the piston rods (2 and 8, Fig. 7-1).