Volume Metering Head GMG

Transcription

1 Volume Metering Head Manual - English - Edition 11/10 NORDSON ENGINEERING GMBH LÜNEBURG GERMANY

2 Note This document applies to the entire series. Order number P/N = Order number for Nordson articles Note This is a Nordson corporation publication which is protected by copyright. Copyright 1999 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 All rights reserved. Trademarks AccuJet, AeroCharge, Apogee, AquaGuard, Asymtek, Automove, Autotech, Baitgun, Blue Box, Bowtie, CanWorks, Century, CF, CleanSleeve, CleanSpray, Color-on-Demand, ColorMax, Control Coat, Coolwave, Cross-Cut, cscan+, Dispensejet, DispenseMate, DuraBlue, DuraDrum, Durafiber, DuraPail, Dura-Screen, Durasystem, Easy Coat, Easymove Plus, Ecodry, Econo-Coat, e.dot, Emerald, e.stylized, EFD, Encore, ESP, ETI-stylized, Excel 2000, Fillmaster, FlexiCoat, Flexi-Spray, Flex-O-Coat, Flow Sentry, Fluidmove, FoamMelt, FoamMix, Fulfill, GreenUV, HDLV, Heli-flow, Helix, Horizon, Hot Shot, icontrol, idry, iflow, Isocoil, Isocore, Iso-Flo, itrax, JR, KB30, Kinetix, Lean Cell, Little Squirt, LogiComm, Magnastatic, March, Maverick, MEG, Meltex, Microcoat, Micromark, MicroSet, Millenium, Mini Squirt, Moist-Cure, Mountaingate, Nordson, OptiMix, Package of Values, PatternView, PermaFlo, PicoDot, PluraFoam, Porous Coat, PowderGrid, Powderware, Precisecoat, Primarc, Printplus, Prism, ProBlue, Prodigy, Pro-Flo, ProLink, Pro-Meter, Pro-Stream, RBX, Rhino, Saturn, Saturn with rings, Scoreguard, SC5, S. design stylized, Seal Sentry, Select Charge, Select Coat, Select Cure, Signature, Slautterback, Smart-Coat, Solder Plus, Spectrum, Speed-Coat, Spraymelt, Spray Squirt, Super Squirt, SureBead, Sure Clean, Sure Coat, Sure-Max, Sure Wrap, Tela-Therm, Tracking Plus, TRAK, Trends, Tribomatic, TrueBlue, TrueCoat, Ultra, UniScan, UpTime, u-tah, Vantage, Veritec, VersaBlue, Versa-Coat, VersaDrum, VersaPail, Versa-Screen, Versa-Spray, Walcom, Watermark, When you expect more. are registered trademarks - - of Nordson Corporation. Accubar, Advanced Plasma Systems, AeroDeck, AeroWash, AltaBlue, AltaSlot, Alta Spray, AquaCure, ATS, Auto-Flo, AutoScan, Axiom, Best Choice, BetterBook, Blue Series, Bravura, CanNeck, CanPro+, Celero, Chameleon, Champion, Check Mate, ClassicBlue, Classic IX, Clean Coat, ContourCoat, Controlled Fiberization, Control Weave, CPX, cselect, Cyclo-Kinetic, DispensLink, DropCure, Dry Cure, DuraBraid, DuraCoat, e.dot+, E-Nordson, Easy Clean, EasyOn, EasyPW, Eclipse, Equalizer, EquiBead, Exchange Plus, FillEasy, Fill Sentry, FlowCoat, Fluxplus, G-Net, G-Site, Get Green With Blue, Gluie, Ink-Dot, ion, Iso-Flex, itrend, KVLP, Lacquer Cure, Maxima, Mesa, MicroFin, MicroMax, Mikros, MiniBlue, MiniEdge, Minimeter, MonoCure, Multifil, MultiScan, Myritex, OmniScan, Nano, OptiStroke, Origin, Partnership+Plus, PatternJet, PatternPro, PCI, Pinnacle, Plasmod, PluraMix, Powder Pilot, Powder Port, Powercure, Process Sentry, Pulse Spray, PurTech, Quad Cure, Ready Coat, RediCoat, Royal Blue, Select Series, Sensomatic, Shaftshield, SheetAire, Smart, SolidBlue, Spectral, Spectronic, SpeedKing, Spray Works, Summit, Sure Brand, SureFoam, SureMix, SureSeal, Swirl Coat, TAH, Tempus, ThruWave, TinyCure, Trade Plus, Trilogy, Ultra FoamMix, UltraMax, Ultrasaver, Ultrasmart, Universal, ValueMate, Viper, Vista, Versa, WebCure, 2 Rings (Design) are trademarks - - of the Nordson Corporation. Designations and trademarks stated in this document may be brands that, when used by third parties for their own purposes, could lead to violation of the owners' right.

3 Table of Contents I Table of Contents Safety Instructions... 1 Introduction... 1 Intended Use... 1 Unintended Use - Examples Residual Risks... 2 Note on Manual... 2 ID Plate... 2 Year of Construction... 3 Configuration Code... 3 Special Models... 3 Components... 4 Application Module... 5 Possible Application Module Types... 5 Heating... 6 Motor... 6 Gear Pump... 6 Pressure Sensor... 6 Nozzle Garage... 6 Installation... 7 Unpacking... 7 Transport... 7 Storage... 7 Disposal... 7 Exhausting Material Vapors... 7 Installing Volume Metering Head... 7 Electrical Connection... 8 Laying Cable... 8 Motor... 8 Solenoid Valves... 8 Pneumatic Connection... 9 Limiting Pump Outlet Pressure... 9 Connecting Heated Hose Using Second Open-end Wrench Connecting Disconnecting Operation Important When Using Polyurethane Application Materials (PUR) Setting Temperatures Maximum Operating Temperature Setting Nozzle Stem Stroke Settings Record... 13

4 II Table of Contents Maintenance Observe when Using Cleaning Agents Maintenance Table Visual Inspection for External Damage External Cleaning Cleaning Application Nozzle Gear Pump Maintenance Checking for Leakage Tightening Gland Bolt Retightening Fixing Screws Troubleshooting Introduction Troubleshooting Table Repair Relieving Pressure Processing Materials Replacing Gear Pump Removing Gear Pump Installing Gear Pump Replacing Application Module Replacing Pressure Sensor Technical Data Operating Data Electrical Data Other Data... 23

5 Volume Metering Head 1 Safety Instructions ATTENTION: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. Introduction Intended Use Volume metering heads in the series may be used only to apply hot melt adhesives and sealants. Any other use is considered to be unintended. Nordson will not be liable for personal injury and/or property damage resulting from unintended use. Intended use includes the observance of Nordson safety instructions. Nordson recommends obtaining detailed information on the materials to be used. Unintended Use - Examples - The volume metering head may not be used under the following conditions: When changes or modifications have been made by the customer In defective condition In a potentially explosive atmosphere When values stated under Technical Data are not complied with. The volume metering head may not be used to feed the following materials: Explosive and flammable materials Erosive and corrosive materials Food products.

6 2 Volume Metering Head Residual Risks In the design of the unit, every measure was taken to protect personnel from potential danger. However, some residual risks cannot be avoided. Personnel should be aware of the following: Risk of burns! The volume metering head is hot Risk of burns! The hot melt adhesive that comes out of the application nozzle is hot Risk of burns when installing heated hoses Material fumes can be hazardous. Avoid inhalation. Hot, pressurized adhesive can escape. Note on Manual The position numbers in the illustrations do not correspond to the position numbers in the technical drawings and parts lists. Because the unit is continuously being modified and improved, several models exist. Thus illustrations in this manual may deviate from the actual design. Features of special models are described in a supplement that is then added to this manual. ID Plate Nordson Engineering GmbH D Lüneburg - Germany Made in Germany 1. field Configuration code 2. field Nordson order number 3. field Serial number 4. field Operating voltage V = Volt 5. field Power consumption W = Watt V W

7 Volume Metering Head 3 Year of Construction The year and month of production are indicated within the serial number on the ID plate: Year LU10J01234 Month... G July H August J September K October... Configuration Code The series includes several model variations, indicated by a configuration code. Box Equipment G M G Type - pump module temp. sensor hose fitting / bracket heated nozzle garage High temp. input press. sensor spare NOTE: If information contained in this manual applies to only a certain model, the respective configuration code is stated. Example: Box 12 = N (heated nozzle garage available) Special Models Box 4 = E An E indicates that the model deviates from the configuration code. Such deviations are described in a supplement that is then added to this manual.

8 4 Volume Metering Head Components Figure 1 shows the main components of a volume metering head, using as an example a model with an EP 25T application module. Refer to technical drawings for detailed illustrations Fig. 1 Volume metering head with EP 25T 1 Head power cable 6 Pressure sensor 2 Motor 7 Body 3 Solenoid valve 8 Gear pump 4 Coupling 9 Mounting bracket (option) 5 Application module 10 Pressure sensor cable Plug-in motor power cable and encoder cable 12 Heatable hinge (option) 13 Pressure sensor, inlet (option)

9 Volume Metering Head 5 Application Module The application module precisely opens and closes the adhesive supply to the application nozzle by pneumatically raising or lowering the nozzle stem. Possible Application Module Types To meet the requirements of many different applications, there are several types of application modules to choose from. - A XXXX Auto Flo SolidBlue A Box 7 = A B Notes SureBead A C (Ø 0.5 mm) D (Ø 0.8 mm) E (Ø 1.0 mm) EP25T EP25ZC AG F G H X 1 1-1, 3, 4 3 3, Order nozzles for different bead widths separately 2 Instead of an application module, there is a threaded bore 3 / 4 UNF to be used as a hose connection 3 Heated as a separate heating zone 4 Suitable for high temperature models (box 13 = H) 5 Order needle and nozzle kits for different bead widths separately

10 6 Volume Metering Head Heating Electrical heater cartridges are used to heat the melter. The temperature is continuously measured by temperature sensors and regulated by electronic temperature controllers located in the electrical cabinet. Motor The gear pump is driven by an electronically-controlled motor. Also refer to manual Electrical Cabinet for Volume Metering Head. Gear Pump The motor-driven gear pump feeds the adhesive through the body to the application module. NOTE: Nordson gear pumps may not be operated without hot melt material. Before switching on the motor, ensure that the tank of the unit feeding the adhesive (melter or bulk melter) is filled. Pressure Sensor 1 The pressure sensor in the body continuously monitors the adhesive pressure. Box 13 = X: The pressure sensor is connected to a pressure transducer located in a separate electrical cabinet H: Refer to the separate pressure sensor (1) manual Box 14 = P: Additional pressure sensor for inlet pressure Pressure sensors like box 13 = H Nozzle Garage Box 12 = N The heated Nozzle garage is used to keep long nozzles at operating temperature during application breaks.

11 Volume Metering Head 7 Installation ATTENTION: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. Unpacking Unpack carefully. Then check for damage caused during transport. Reuse packaging materials or dispose of properly according to local regulations. Transport The gun is a high precision, valuable part. Handle very carefully! Protect the nozzle from damage. Storage Do not store outside! Protect from humidity and dust. Do not lay unit on the nozzle. Protect the nozzle from damage. Disposal When your Nordson product has exhausted its purpose and/or is no longer needed, dispose of it properly according to local regulations. Exhausting Material Vapors Ensure that material vapors do not exceed the prescribed limits. Exhaust material fumes when necessary. Provide sufficient ventilation of the location where the unit is installed. Installing Volume Metering Head Observe the following when installing: Do not operate in a potentially explosive atmosphere Protect from humidity, vibrations, dust and drafts Ensure access to parts relevant for maintenance and operation Protect the nozzle from damage.

12 8 Volume Metering Head Electrical Connection CAUTION: Operate only at the operating voltage shown on the ID plate. Laying Cable ATTENTION: Ensure that cables do not touch rotating and/or hot components. Do not pinch cables and check regularly for damage. Replace damaged cables immediately! The volume metering head is connected to the electrical cabinet with the following cables: Head power cable Pressure sensor cable Plug-in motor power cable Plug-in encoder cable Solenoid valve power cable. Motor CAUTION: Ensure that the motor operating voltage (Refer to ID plate) is the same as that stated in the electrical cabinet wiring diagram. Non-compliance can destroy the motor. Solenoid Valves 1 The solenoid valve (1) can be switched by any control device (e.g. hand switch, light barrier). CAUTION: Operate the solenoid valves only with the voltage shown on the ID plates. CAUTION: Trigger the solenoid valve only when the application head is heated to operating temperature! If the material is too cold, control module seals may be damaged.

13 Volume Metering Head 9 Pneumatic Connection 1 The application module operates with nonlubricated, filtered, dry compressed air. The operating air pressure for the application module is set specifically for each application on an external compressed air control valve. The air pressure control valve is not part of the volume metering head. 1. Connect a regulated air supply to the compressed air fitting (1). Recommended pressure range: Box 7 = A B C, D, E F G H bar , psi Limiting Pump Outlet Pressure CAUTION: Risk of bursting! The pump outlet pressure may not exceed 170 bar / 2465 psi, and it may never be higher than the permitted inlet pressure of the application module used: Box 7 = A B C, D, E F G H bar > psi > over 121 C / 250 F: 103 over 121 C / 250 F: 1500 A threshold switch in the electrical cabinet limits the pump outlet pressure. Refer to the electrical cabinet manual.

14 10 Volume Metering Head Connecting Heated Hose Using Second Open-end Wrench Use a second open-end wrench when connecting and disconnecting the heated hose. This prevents the hose connection on the unit from turning. Connecting If cold material can be found in the hose connection, these components (1, 2) must be heated until the material softens (approx. 80 C, 176 F). 1. First connect the hose (3) electrically to the unit. For more than one hose: Every hose connection is allocated to a corresponding receptacle. Do not mistakenly exchange! 2. Heat the system and hose to approx. 80 C (176 F). 3. Screw on heated hose. NOTE: Close unused hose connections with proper Nordson port plugs. Disconnecting ATTENTION: System and material pressurized. Relieve system pressure before disconnecting heated hoses. Failure to observe can result in serious burns. ATTENTION: Hot! Risk of burns. Wear goggles and heat-protective gloves. 1. Turn off material supply. 2. Set the preselector Manual / 0 / Auto on the separate electrical cabinet to Manual. 3. On the separate electrical cabinet, set the motor speed of the volume metering head to a low value. 4. Place a container under the application nozzle of the volume metering head. 5. Electrically trigger solenoid valve: Hold down the button Motor on on the electrical cabinet until no more adhesive flows out. 6. Properly dispose of material according to local regulations.

15 Volume Metering Head 11 Operation ATTENTION: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. CAUTION: Trigger the solenoid valve only when the volume metering head is heated to operating temperature! Seals in the application module can become damaged if the adhesive is too cold. CAUTION: The motor may not be triggered until the application head has reached the selected setpoint temperature. Important When Using Polyurethane Application Materials (PUR) It is imperative that the following guidelines are complied with when processing polyurethane application materials (PUR): Wear respiratory protection when the maximum permissible concentration of hazardous substances is exceeded. During interruptions in production or breaks, the temperature should be reduced and the nozzles of the application heads covered with Vaseline or dipped in a suitable oil. Before prolonged standstill of the application system, purge with a suitable cleaning agent. Use only a cleaning agent recommended by the material manufacturer. Close open material connections airtight. Setting Temperatures Maximum Operating Temperature The procedure for setting the temperatures is described in the temperature controller manual. The temperature controllers are located in the melter system electrical cabinet or in the separate volume metering head electrical cabinet. Box 13 = X H C F NOTE: The maximum operating temperature may not be exceeded. Nordson will assume no warranty or liability for damage resulting from incorrect temperature settings.

16 12 Volume Metering Head Setting Nozzle Stem Stroke Some application modules are equipped with a nozzle stem adjustment. It is used for fine adjustment of the adhesive application quantity or the adhesive flow quantity. ATTENTION: Hazard! The stem stroke adjustment knob has no upper setting limit. If compressed air is connected, never turn the adjusting knob all the way up; it may jump out. Max mm Max in. CAUTION: The stem stroke may only be adjusted when the volume metering head is heated up! Failure to observe can cause damage to seals. NOTE: If the nozzle stem stroke is unintentionally closed all the way, overpressure shutdown of the electrical cabinet is triggered. NOTE: The stem stroke adjustment knob has no upper setting limit; starting from the bottom, it may only be turned a maximum of 2¼ revolutions upward. This corresponds to a nozzle stem stroke of maximum 1.2 mm. Failure to observe can result in - among other things - increased wear and malfunctioning. Experience has shown that a stroke adjustment of max. 0.5 to 0.6 mm (which corresponds to 1 turn) has proven to be sufficient. Nozzle stem stroke Flow rate Counterclockwise (+) = increase Increase Clockwise (-) = decrease Decrease

17 Volume Metering Head 13 Settings Record Production information Adhesive Cleaning agent Basic settings volume metering head Basic settings temperature Manufacturer Max. processing temperature Viscosity Manufacturer Flash point Air pressure Stem stroke (rotations) Heating zone volume metering head Undertemperature Overtemperature Notes Form filled out by: Name Date

18 14 Volume Metering Head Maintenance ATTENTION: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. NOTE: Maintenance is an important preventive measure for maintaining operating safety and extending the service life of the unit. It should never be neglected. Observe when Using Cleaning Agents Use only a cleaning agent recommended by the hot melt material manufacturer. Observe the Material Safety Data Sheet for the cleaning agent. Properly dispose of the cleaning agent according to local regulations. Maintenance Table The maintenance intervals are general guidelines based on experience. Depending on operating environment, production conditions and hours of operation of the unit, other maintenance intervals may prove necessary. NOTE: The motor is maintenance-free. Unit part Activity Interval Refer to Volume metering head, complete Inspect for damage Daily Page 15 External cleaning Daily Page 15 Application Nozzle Clean Regularly, or when the application pattern deteriorates Page 15 Gear pump Maintenance - - Page 16

19 Volume Metering Head 15 Visual Inspection for External Damage ATTENTION: When damaged parts pose a risk to the operational safety of the unit and/or safety of personnel, switch off the unit and have the damaged parts replaced by qualified personnel. Use only original Nordson spare parts. External Cleaning CAUTION: Do not damage or remove warning labels. Damaged or removed warning labels must be replaced by new ones. External cleaning prevents pollution created by production from causing the unit to malfunction. NOTE: Always follow the manufacturer's instructions when using cleaning agents! 1. Heat cold volume metering head electrically or with a hot air fan until the adhesive is liquid. 2. Thoroughly remove warm adhesive with a cleaning agent and/or a soft cloth. 3. Remove dust, fluffs, etc. with a vacuum cleaner or a soft, lint-free cloth. Cleaning Application Nozzle CAUTION: Use only a cleaning agent recommended by the adhesive manufacturer. Observe Manufacturer Safety Data Sheet (MSDS) for the cleaning agent. NOTE: Because of their design, application modules with the additional designation ZC are unlikely to become clogged with adhesive residue. Since the nozzle and the nozzle stem are precisely attuned to one another, Nordson recommends complete replacement should blockage occur. 1. Heat volume metering head until adhesive is soft. 2. Remove adhesive residue. 3. Application modules with replaceable nozzle: Unscrew nozzle and dissolve residue with a cleaning agent.

20 16 Volume Metering Head Gear Pump Maintenance Checking for Leakage The gear pump is equipped with a self-sealing pump shaft seal. Material may seep out of the seal at irregular intervals. The gland bold must then be tightened. NOTE: If the pump shaft seal needs to be replaced, Nordson recommends replacing the pump and sending the old one in to be repaired. Only trained personnel can replace the pump shaft seal. Tightening Gland Bolt NOTE: Tighten only when the pump is warm. Tighten the gland bolt approx. ¼ of a revolution in the operating direction of the pump. If tightening is no longer possible, the gear pump must be replaced. Retightening Fixing Screws Thermodynamic tension (heating and cooling) can cause the fixing screws to loosen. NOTE: Tighten the fixing screws only when the pump is cold and only with a torque wrench (25 Nm / 220 lbin).

21 Volume Metering Head 17 Troubleshooting ATTENTION: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. Introduction Troubleshooting tables are intended as an orientation for qualified personnel. They cannot, however, replace targeted troubleshooting with the aid of wiring diagrams and measuring instruments. They also do not include all possible problems, only those which most typically occur. The following problems are not included in the troubleshooting tables: Faults in installation Faults in operation Defective cables Loose plug and screw connections. In the column Corrective action, the remark that defective parts should be replaced is generally not included. Troubleshooting Table Problem Possible cause Corrective action Refer to No adhesive Volume metering head has not yet reached operating temperature Wait until temperature has been reached; check temperature setting if necessary Page 11 Not enough hot melt adhesive in the adhesive feeding unit Fill Separate manual Pump of the hot melt feeding unit does not work Pump of the volume metering head not working Check, replace if necessary - Check, replace if necessary Page 20 Control air not connected Connect Page 9 Nozzle clogged Clean nozzle Page 15 Nozzle stem is stuck Replace application module -

22 18 Volume Metering Head Problem Possible cause Corrective action Refer to The hot melt application is not precise Nozzle damaged Temperature not set correctly on temperature controller Replace nozzle or application module Correct temperature setting - Separate manual Heater cartridge(s) defective Replacing heater cartridge(s) - Hot melt adhesive unsuitable Consult adhesive manufacturer Data sheet from adhesive manufacturer The open time* is too long The open time* is too short Application temperature too high Set temperature lower Page 11 Hot melt adhesive unsuitable Consult adhesive manufacturer Data sheet from adhesive manufacturer Application temperature too low Set temperature higher Page 11 Hot melt adhesive unsuitable Consult adhesive manufacturer Data sheet from adhesive manufacturer * The open time is the time from when the adhesive leaves the nozzle until it hardens on the substrate.

23 Volume Metering Head 19 Repair ATTENTION: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. Relieving Pressure ATTENTION: System and adhesive pressurized. Relieve system of pressure before repair work on the volume metering head. Failure to observe can result in serious burns. ATTENTION: Hot! Risk of burns. Wear goggles and heat-protective gloves. NOTE: Also refer to the electrical cabinet manual. 1. Turn off material supply. 2. On the electrical cabinet: Select Manual mode. 3. Place a container under the application nozzle of the volume metering head. 4. On the electrical cabinet: Briefly activate the feature Purge application head to reduce the pressure before the pump. 5. Trigger application module solenoid valve electrically or manually until material no longer flows out. 6. Properly dispose of material according to local regulations. Processing Materials Designation Order number Use High temperature grease Apply to O-rings, threads and Can 10 g P/N sealing surfaces NOTE: The grease should not be Tube 250 g P/N mixed with other lubricants. Cartridge 400 g P/N Oily/greasy parts must be cleaned before application. Temperature-resistant Secures screw connections adhesive Loctite ml P/N Heat transfer compound NTE303 1 g P/N For better heat transfer of temperature sensors

24 20 Volume Metering Head Replacing Gear Pump If the gear pump should cease functioning, Nordson recommends replacing it and sending it in to be repaired. NOTE: The following position numbers refer to Fig. 2. Removing Gear Pump ATTENTION: Hot! Risk of burns. Wear heat-protective gloves. ATTENTION: Ensure that the volume metering head is relieved of pressure. Refer to page 19, Relieving Pressure. NOTE: Only unscrew the gear pump when the volume metering head is warm (adhesive must be soft). 1. Disconnect the motor power cable and the encoder cable (2) from the volume metering head. 2. Disconnect the head power cable (1) and the pressure sensor cable (12) from the electrical cabinet. 3. Unscrew the cable clamps (5). 4. Unscrew the adhesive hose (10) from the volume metering head. 5. Unscrew the air hoses (8) from the application module and the body. 6. Release and remove the coupling cover (7). 7. Release the screw (6) that secures the pump shaft in the coupling. 8. Release the four screws (11) that secure the motor plate to the four spacing columns. 9. Remove motor plate with motor and coupling from the pump shaft. 10. Place a container under the pump to collect any adhesive left. 11. Unscrew pump from body (four screws). 12. Clean sealing surface on body. If necessary, heat adhesive residue with a hot air fan, then remove. 13. Allow volume metering head to cool to room temperature. Installing Gear Pump NOTE: The gear pump may only be screwed onto a cold volume metering head. 1. Apply high temperature grease to the sealing surface of the new pump.

25 Volume Metering Head Apply high temperature grease to the pump fixing screws and screw the pump loosely onto the body. 3. Place motor plate with motor and coupling on the pump shaft and secure. 4. Tighten fixing screws of the pump crosswise, using a torque wrench. Torque: M = 35 Nm. 5. Mount the motor plate onto the four spacing columns. NOTE: If the pump slides out of place when fastening, it must be re-aligned with the motor. 6. Secure the pump shaft in the coupling with the screw (6). 7. Screw coupling cover back onto the motor plate. 8. Re-connect electrical, pneumatic and hydraulic connections Fig. 2 1 Head power cable 2 Plug-in motor power cable and encoder cable 3 Motor 4 Compressed air connection 5 Cable clamp 6 Coupling screw 7 Coupling cover 8 Control air hose 9 Gear pump 10 Adhesive hose (covered) 11 Screw 12 Pressure sensor cable

26 22 Volume Metering Head Replacing Application Module ATTENTION: Hot! Risk of burns. Wear heat-protective gloves. ATTENTION: Ensure that the volume metering head is relieved of pressure. Refer to page 19, Relieving Pressure. 1. Heat volume metering head until adhesive is soft. 2. Detach the electrical and pneumatic connections from the application module, if necessary. 3. Unscrew application module. NOTE: Some application modules are attached to the body with an adapter plate. 4. Clean sealing surfaces to remove adhesive residue. 5. Allow volume metering head to cool off. 6. Always replace all O-rings. 7. Apply high temperature grease to the fixing screw threads. 8. Screw on the application module. 9. Re-attach the electrical and pneumatic connections to the application module, if necessary. Replacing Pressure Sensor ATTENTION: Hot! Risk of burns. Wear heat-protective gloves. ATTENTION: Ensure that the volume metering head is relieved of pressure. Refer to page 19, Relieving Pressure. 1. Heat volume metering head until adhesive is soft. 2. Replace pressure sensor. 3. Box 13 = X: Calibrate the measuring transducer (in the electrical cabinet). Refer to the electrical cabinet manual Box 13 = H: Calibrate the pressure sensor. Refer to the pressure sensor manual.

27 Volume Metering Head 23 Technical Data Operating Data Maximum operating temperature Box 13 = X: 200 C / 392 F Box 13 = H: 250 C / 482 F Control air pressure for application module Max. adhesive pressure permitted between gear pump and application module (application pressure) Max. inlet pressure permitted (feed pressure of gear pump) Max. ambient temperature (for solenoid valves) Refer to page 9, Pneumatic Connection 170 bar / 17 MPa / 2465 psi May be lower, depending on application module used. Refer to page 9, Limiting Pump Outlet Pressure 200 bar / 20 MPa / 2900 psi 0 to 40 C / 32 to 104 F Electrical Data Operating voltage (heater) Power consumption (heater) Refer to ID plate Refer to ID plate Other Data Degree of protection IP 50 Weight Approx. 11 kg (depending on the application head; refer to consignment note)

28 24 Volume Metering Head