universal lvm-900 applicatoremanuals.nordson.com/adhesives/english_manuals/1099230.pdf ·...

Universal LVM-900 Applicator

Customer Product ManualPart 1099230A

Issued 3/10

NORDSON CORPORATION DULUTH, GEORGIA USAwww.nordson.com

This document contains important safety informationBe sure to read and follow all safety information in thisdocument and any other related documentation.

Part 1099230A � 2010 Nordson CorporationAll rights reserved

Nordson Corporation welcomes requests for information, comments, and inquiries about its products. General informationabout Nordson can be found on the Internet using the following address: http://www.nordson.com.

Address all correspondence to:

Nordson CorporationAttn: Customer Service11475 Lakefield Drive

Duluth, GA 30097

Notice

This is a Nordson Corporation publication which is protected by copyright. Original copyright date 2010.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

AccuJet, AeroCharge, Apogee, AquaGuard, Asymtek, Automove, Baitgun, Blue Box, Bowtie, CanWorks, Century, CF, CleanSleeve, CleanSpray, ColorMax,Color-on-Demand, Control Coat, Coolwave, Cross-Cut, cScan+, Dispensejet, DispenseMate, DuraBlue, DuraDrum, Durafiber, DuraPail, Dura-Screen,Durasystem, Easy Coat, Easymove Plus, Ecodry, Econo-Coat, e.DOT, EFD, Emerald, Encore, ESP, e stylized, ETI - stylized, Excel 2000, Fillmaster,

FlexiCoat, Flex-O-Coat, Flow Sentry, Fluidmove, FoamMelt, FoamMix, Fulfill, GreenUV, HDLV, Heli-flow, Horizon, Hot Shot, iControl, iDry, iFlow, Isocoil,Isocore, Iso-Flo, iTRAX, Kinetix, LEAN CELL, Little Squirt, LogiComm, Magnastatic, March, Maverick, MEG, Meltex, Microcoat, Micromark, MicroSet,

Millennium, Mini Squirt, Mountaingate, Nordson, OptiMix, Package of Values, Pattern View, PermaFlo, Porous Coat, PicoDot, PowderGrid, Powderware,Precisecoat, PRIMARC, Printplus, Prism, ProBlue, Prodigy, Pro-Flo, ProLink, Pro-Meter, Pro-Stream, RBX, Rhino, Saturn, Saturn with rings, Scoreguard,Seal Sentry, Select Charge, Select Coat, Select Cure, Signature, Slautterback, Smart-Coat, Solder Plus, Spectrum, Speed-Coat, SureBead, Sure Clean,Sure Coat, Sure-Max, Sure Wrap, Tracking Plus, TRAK, Trends, Tribomatic, TrueBlue, TrueCoat, Ultra, UpTime, u-TAH, Vantage, VersaBlue, Versa-Coat,

VersaDrum, VersaPail, Versa-Screen, Versa-Spray, Watermark, and 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, Blue Series, Bravura, Champion, Check Mate, ClassicBlue, Classic IX, Clean Coat, Cobalt, Controlled Fiberization, Control Weave, ContourCoat, CPX,cSelect, Cyclo-Kinetic, DispensLink, Drop Cure, Dry Cure, DuraBraid, DuraCoat, DuraPUR, Easy Clean, EasyOn, EasyPW, Eclipse, e.dot+, E-Nordson,Equalizer, EquiBead, FillEasy, Fill Sentry, FlowCoat, Fluxplus, Get Green With Blue, G-Net, G-Site, iON, Iso-Flex, iTrend, Lacquer Cure, Maxima, Mesa,

MicroFin, MicroMax, Mikros, MiniBlue, MiniEdge, Minimeter, MonoCure, Multifill, MultiScan, Myritex, Nano, OmniScan, OptiStroke, Partnership+Plus,PatternJet, PatternPro, PCI, Pinnacle, Plasmod, Powder Pilot, Powder Port, Powercure, Process Sentry, Pulse Spray, Quad Cure, Ready Coat, RediCoat,

Royal Blue, Select Series, Sensomatic, Shaftshield, SheetAire, Smart, SolidBlue, Spectral, Spectronic, SpeedKing, Spray Works, Summit, SureFoam,Sure Mix, SureSeal, Swirl Coat, TAH, ThruWave, TinyCure, Trade Plus, Trilogy, Ultra FoamMix, UltraMax, Ultrasaver, Ultrasmart, Universal, ValueMate,

Versa, Vista, Web Cure, and 2 Rings (Design) are trademarks of 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’ rights.

Dow Corning is a registered trademark of Dow Corning Corporation.Loctite is a registered trademark of Loctite Corporation.

Parker Lubricant is a registered trademark of Parker Seal.Viton is a registered trademark of DuPont Dow Elastomers. L.L.C.

Table of Contents i

Part 1099230A� 2010 Nordson Corporation

Table of Contents

Safety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Alert Symbols 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Responsibilities of the Equipment Owner 2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Information 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instructions, Requirements, and Standards 2. . . . . . . . . . . . . . . . . . . . . . User Qualifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Applicable Industry Safety Practices 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intended Use of the Equipment 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instructions and Safety Messages 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Practices 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Practices 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance and Repair Practices 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Safety Information 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment Shutdown 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Safety Warnings and Cautions 7. . . . . . . . . . . . . . . . . . . . . . . . . . Other Safety Precautions 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . First Aid 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Labels and Tags 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intended Use 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limitations of Use 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Key Components 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Theory of Operation 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applicator Control 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Features 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applicator Identification 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Items Needed 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mount the Applicator 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connect Hoses 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connect the Air Supply 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Make the Electrical Connections 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connect the Solenoid Valve Wiring 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Check for Correct Applicator Installation 28. . . . . . . . . . . . . . . . . . . . . . . . . . . Flush the Applicator 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contentsii

Part 1099230A � 2010 Nordson Corporation

Operation 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applicator Heating Problems 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fluid Output Problems 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fluid Leakage Problems 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pump and Drive Problems 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Supply Problems 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Pressure Relief 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applicator Flushing 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Prepare for Flushing 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flush the Applicator 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Restore the System to Normal Operation 42. . . . . . . . . . . . . . . . . . . . . . . .

Heater Replacement 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTD Replacement 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Module Replacement 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remove a Module 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Install a Module 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Nozzle Removal/Installation 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove a Nozzle 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Install a Nozzle 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Nozzle Cleaning 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Module Rebuild 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disassemble the Module 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean the Module Components 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reassemble the Module 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Motor Rotational Check 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motor Replacement 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pump Replacement 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remove the Pump 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Install the Pump 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Applicator Disassembly and Cleaning 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prepare for Disassembly 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disassemble the Applicator 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean the Applicator Components 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reassemble the Applicator 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents iii


Parts 78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applicator Parts 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dispensing Module Parts Lists 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Module Parts 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Module Rebuild Kit Parts 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting Cables 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cordset Junction Box 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cordset Junction Box Splitter Cable 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Extension Cables 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Proximity Switch Cable 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC Motor Cables 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure Transducer Cables 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Recommended Spare Parts, Tools, and Supplies 87. . . . . . . . . . . . . . . . . . .

Technical Data 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applicator Specifications 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torque Specifications 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applicator Dimensions 90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wiring Diagrams 91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contentsiv


Universal LVM-900 Applicator 1


Universal LVM-900 Applicator

WARNING! Allow only personnel with appropriate training and experienceto operate or service the equipment. The use of untrained or inexperiencedpersonnel to operate or service the equipment can result in injury, includingdeath, to themselves and others, and damage to the equipment.

Safety Read this section before using the equipment. This section containsrecommendations and practices applicable to the safe installation,operation, and maintenance (hereafter referred to as “use”) of the productdescribed in this document (hereafter referred to as “equipment”). Additionalsafety information, in the form of task-specific safety alert messages,appears as appropriate throughout this document.

WARNING! Failure to follow the safety messages, recommendations, andhazard avoidance procedures provided in this document can result inpersonal injury, including death, or damage to equipment or property.

Safety Alert Symbols The following safety alert symbol and signal words are used throughout thisdocument to alert the reader to personal safety hazards or to identifyconditions that may result in damage to equipment or property. Comply withall safety information that follows the signal word.

WARNING! Indicates a potentially hazardous situation that, if not avoided,can result in serious personal injury, including death.

CAUTION! Indicates a potentially hazardous situation that, if not avoided,can result in minor or moderate personal injury.

CAUTION! (Used without the safety alert symbol) Indicates a potentiallyhazardous situation that, if not avoided, can result in damage to equipmentor property.

Universal LVM-900 Applicator2


Responsibilities of the Equipment Owner Equipment owners are responsible for managing safety information,ensuring that all instructions and regulatory requirements for use of theequipment are met, and for qualifying all potential users.

Safety Information � Research and evaluate safety information from all applicable sources,

including the owner-specific safety policy, best industry practices,governing regulations, material manufacturer’s product information, andthis document.

� Make safety information available to equipment users in accordancewith governing regulations. Contact the authority having jurisdiction forinformation.

� Maintain safety information, including the safety labels affixed to theequipment, in readable condition.

Instructions, Requirements, and Standards � Ensure that the equipment is used in accordance with the information

provided in this document, governing codes and regulations, and bestindustry practices.

� If applicable, receive approval from your facility’s engineering or safetydepartment, or other similar function within your organization, beforeinstalling or operating the equipment for the first time.

� Provide appropriate emergency and first aid equipment.

� Conduct safety inspections to ensure required practices are beingfollowed.

� Re-evaluate safety practices and procedures whenever changes aremade to the process or equipment.



User Qualifications Equipment owners are responsible for ensuring that users:

� receive safety training appropriate to their job function as directed bygoverning regulations and best industry practices

� are familiar with the equipment owner’s safety and accidentprevention policies and procedures

� receive, equipment- and task-specific training from another qualifiedindividual

NOTE: Nordson can provide equipment-specific installation,operation, and maintenance training. Contact your Nordsonrepresentative for information

� possess industry- and trade-specific skills and a level of experienceappropriate to their job function

� are physically capable of performing their job function and are notunder the influence of any substance that degrades their mentalcapacity or physical capabilities

Applicable Industry Safety Practices The following safety practices apply to the use of the equipment in themanner described in this document. The information provided here is notmeant to include all possible safety practices, but represents the best safetypractices for equipment of similar hazard potential used in similar industries.

Intended Use of the Equipment � Use the equipment only for the purposes described and within the limits

specified in this document.

� Do not modify the equipment.

� Do not use incompatible materials or unapproved auxiliary devices.Contact your Nordson representative if you have any questions onmaterial compatibility or the use of non-standard auxiliary devices.



Instructions and Safety Messages � Read and follow the instructions provided in this document and other

referenced documents.

� Familiarize yourself with the location and meaning of the safety warninglabels and tags affixed to the equipment. Refer to Safety Labels andTags at the end of this section.

� If you are unsure of how to use the equipment, contact your Nordsonrepresentative for assistance.

Installation Practices � Install the equipment in accordance with the instructions provided in this

document and in the documentation provided with auxiliary devices.

� Ensure that the equipment is rated for the environment in which it will beused and that the processing characteristics of the material will notcreate a hazardous environment. Refer to the Material Safety DataSheet (MSDS) for the material.

� If the required installation configuration does not match the installationinstructions, contact your Nordson representative for assistance.

� Position the equipment for safe operation. Observe the requirements forclearance between the equipment and other objects.

� Install lockable power disconnects to isolate the equipment and allindependently powered auxiliary devices from their power sources.

� Properly ground all equipment. Contact your local building codeenforcement agency for specific requirements.

� Ensure that fuses of the correct type and rating are installed in fusedequipment.

� Contact the authority having jurisdiction to determine the requirement forinstallation permits or inspections.

Operating Practices � Familiarize yourself with the location and operation of all safety devices

and indicators.

� Confirm that the equipment, including all safety devices (guards,interlocks, etc.), is in good working order and that the requiredenvironmental conditions exist.

� Use the personal protective equipment (PPE) specified for each task.Refer to Equipment Safety Information or the material manufacturer’sinstructions and MSDS for PPE requirements.

� Do not use equipment that is malfunctioning or shows signs of apotential malfunction.



Maintenance and Repair Practices � Perform scheduled maintenance activities at the intervals described in

this document.

� Relieve system hydraulic and pneumatic pressure before servicing theequipment.

� De-energize the equipment and all auxiliary devices before servicing theequipment.

� Use only new Nordson-authorized refurbished or replacement parts.

� Read and comply with the manufacturer’s instructions and the MSDSsupplied with equipment cleaning compounds.

NOTE: MSDSs for cleaning compounds that are sold by Nordson areavailable at www.nordson.com or by calling your Nordsonrepresentative.

� Confirm the correct operation of all safety devices before placing theequipment back into operation.

� Dispose of waste cleaning compounds and residual process materialsaccording to governing regulations. Refer to the applicable MSDS orcontact the authority having jurisdiction for information.

� Keep equipment safety warning labels clean. Replace worn or damagedlabels.

Equipment Safety Information This equipment safety information is applicable to the following types ofNordson equipment:

� hot melt and cold adhesive application equipment and all relatedaccessories

� pattern controllers, timers, detection and verification systems, and allother optional process control devices



Equipment Shutdown To safely complete many of the procedures described in this document, theequipment must first be shut down. The level of shut down required variesby the type of equipment in use and the procedure being completed. If required, shut down instructions are specified at the start of theprocedure. The levels of shut down are:

Relieving System Hydraulic Pressure

Completely relieve system hydraulic pressure before breaking any hydraulicconnection or seal. Refer to the melter-specific product manual forinstructions on relieving system hydraulic pressure.

De-energizing the System

Isolate the system (melter, hoses, guns, and optional devices) from allpower sources before accessing any unprotected high-voltage wiring orconnection point.

1. Turn off the equipment and all auxiliary devices connected to theequipment (system).

2. To prevent the equipment from being accidentally energized, lock andtag the disconnect switch(es) or circuit breaker(s) that provide inputelectrical power to the equipment and optional devices.

NOTE: Government regulations and industry standards dictate specificrequirements for the isolation of hazardous energy sources. Refer to theappropriate regulation or standard.

Disabling the Guns

NOTE: Adhesive dispensing guns are referred to as “applicators” in someindustries.

All electrical or mechanical devices that provide an activation signal to theguns, gun solenoid valve(s), or the melter pump must be disabled beforework can be performed on or around a gun that is connected to apressurized system.

1. Turn off or disconnect the gun triggering device (pattern controller, timer,PLC, etc.).

2. Disconnect the input signal wiring to the gun solenoid valve(s).

3. Reduce the air pressure to the gun solenoid valve(s) to zero; thenrelieve the residual air pressure between the regulator and the gun.



General Safety Warnings and Cautions Table 1 contains the general safety warnings and cautions that apply toNordson hot melt and cold adhesive equipment. Review the table andcarefully read all of the warnings or cautions that apply to the type ofequipment described in this manual.

Equipment types are designated in Table 1 as follows:

HM = Hot melt (melters, hoses, guns, etc.)

PC = Process control

CA = Cold adhesive (dispensing pumps, pressurized container, andguns)

Table 1 General Safety Warnings and Cautions

EquipmentType Warning or Caution

HM

WARNING! Hazardous vapors! Before processing any polyurethanereactive (PUR) hot melt or solvent-based material through acompatible Nordson melter, read and comply with the material’sMSDS. Ensure that the material’s processing temperature andflashpoints will not be exceeded and that all requirements for safehandling, ventilation, first aid, and personal protective equipment aremet. Failure to comply with MSDS requirements can cause personalinjury, including death.

HM

WARNING! Reactive material! Never clean any aluminum componentor flush Nordson equipment with halogenated hydrocarbon fluids.Nordson melters and guns contain aluminum components that mayreact violently with halogenated hydrocarbons. The use ofhalogenated hydrocarbon compounds in Nordson equipment cancause personal injury, including death.

HM, CAWARNING! System pressurized! Relieve system hydraulic pressurebefore breaking any hydraulic connection or seal. Failure to relievethe system hydraulic pressure can result in the uncontrolled release ofhot melt or cold adhesive, causing personal injury.

Continued...



General Safety Warnings and Cautions (contd)

Table 1 General Safety Warnings and Cautions (contd)


HMWARNING! Molten material! Wear eye or face protection, clothing thatprotects exposed skin, and heat-protective gloves when servicingequipment that contains molten hot melt. Even when solidified, hotmelt can still cause burns. Failure to wear appropriate personalprotective equipment can result in personal injury.

HM, PC

WARNING! Equipment starts automatically! Remote triggeringdevices are used to control automatic hot melt guns. Before workingon or near an operating gun, disable the gun’s triggering device andremove the air supply to the gun’s solenoid valve(s). Failure to disablethe gun’s triggering device and remove the supply of air to thesolenoid valve(s) can result in personal injury.

HM, CA, PC

WARNING! Risk of electrocution! Even when switched off andelectrically isolated at the disconnect switch or circuit breaker, theequipment may still be connected to energized auxiliary devices.De-energize and electrically isolate all auxiliary devices beforeservicing the equipment. Failure to properly isolate electrical power toauxiliary equipment before servicing the equipment can result inpersonal injury, including death.

HM, CA, PC

WARNING! Risk of fire or explosion! Nordson adhesive equipment isnot rated for use in explosive environments and should not be usedwith solvent-based adhesives that can create an explosiveatmosphere when processed. Refer to the MSDS for the adhesive todetermine its processing characteristics and limitations. The use ofincompatible solvent-based adhesives or the improper processing ofsolvent-based adhesives can result in personal injury, including death.

Continued...



Table 1 General Safety Warnings and Cautions (contd)


HM, CA, PCWARNING! Allow only personnel with appropriate training andexperience to operate or service the equipment. The use of untrainedor inexperienced personnel to operate or service the equipment canresult in injury, including death, to themselves and others and candamage to the equipment.

HMCAUTION! Hot surfaces! Avoid contact with the hot metal surfaces ofguns, hoses, and certain components of the melter. If contact can notbe avoided, wear heat-protective gloves and clothing when workingaround heated equipment. Failure to avoid contact with hot metalsurfaces can result in personal injury.

HM

CAUTION! Some Nordson melters are specifically designed toprocess polyurethane reactive (PUR) hot melt. Attempting to processPUR in equipment not specifically designed for this purpose candamage the equipment and cause premature reaction of the hot melt.If you are unsure of the equipment’s ability to process PUR, contactyour Nordson representative for assistance.

HM, CA

CAUTION! Before using any cleaning or flushing compound on or inthe equipment, read and comply with the manufacturer’s instructionsand the MSDS supplied with the compound. Some cleaningcompounds can react unpredictably with hot melt or cold adhesive,resulting in damage to the equipment.

HM

CAUTION! Nordson hot melt equipment is factory tested withNordson Type R fluid that contains polyester adipate plasticizer.Certain hot melt materials can react with Type R fluid and form a solidgum that can clog the equipment. Before using the equipment,confirm that the hot melt is compatible with Type R fluid.



Other Safety Precautions � Do not use an open flame to heat hot melt system components.

� Check high pressure hoses daily for signs of excessive wear, damage,or leaks.

� Never point a dispensing handgun at yourself or others.

� Suspend dispensing handguns by their proper suspension point.

First AidIf molten hot melt comes in contact with your skin:

1. Do NOT attempt to remove the molten hot melt from your skin.

2. Immediately soak the affected area in clean, cold water until the hot melthas cooled.

3. Do NOT attempt to remove the solidified hot melt from your skin.

4. In case of severe burns, treat for shock.

5. Seek expert medical attention immediately. Give the MSDS for the hotmelt to the medical personnel providing treatment.



Safety Labels and Tags Figure 1 illustrates the location of the product safety labels and tags affixedto the equipment. Table 2 provides an illustration of the hazard identificationsymbols that appear on each safety label and tag, the meaning of thesymbol, or the exact wording of any safety message.

1 2 1 2

Figure 1 Safety labels and tags

Table 2 Safety Labels and Tags

Item Part Description

1. 181863

Plate, warning, CE, electrical shock

2. 181862

Plate, warning, CE, hot



Description This manual describes the installation and use of the Universal LVM-900(low-viscosity metering) applicator. When necessary, the reader is referredto the documentation supplied with other Nordson products or productssuppled by third parties.

The Universal LVM-900 applicator is used in continuous applications toapply low-viscosity, unheated fluids (such as perfumes) to a product andmay be used with any Universal nozzle that does not require pattern (orprocess) air.

The applicator is constructed of AL6XN stainless-steel and is capable ofapplying corrosive fluids. Accordingly, the fluid supply components usedwith this applicator should have the same capability.

Figure 2 Universal LVM-900 applicator



Intended Use This equipment is specifically designed to:

� pump liquified fluids at temperatures below 93 �C (200 �F)

� be used in non-explosive environments

� be used in water-wash environments rated up to (and including)IP65

Limitations of Use Use this equipment only for the purpose for which it is designed. It shouldnot be used:

� to pump polyurethane reactive hot melt materials or any othermaterial that creates a health or safety hazard when heated

� in intermittent or spray applications

� to apply filled materials



Key Components

1

810

5

6

7

23 4

15

11

13

14

9

12

Figure 3 Key components of a Universal LVM-900 applicator

1. Pressure transducer2. Heater3. Sensor (RTD)4. Proximity sensor5. Motor/gearbox6. Motor cable connector

7. Recirculation port (plugged)8. Drain valve9. Module-mounting manifold

10. Dispensing module and nozzle11. Fluid supply input12. Pump/coupling (behind guard)

13. Pump mounting manifold14. Recirculation hose fitting15. Solenoid valve air input port



Theory of Operation The fluid application process begins with the introduction of the followingprocess variables to the applicator: module-actuating air and heated fluid.The module-actuating air is supplied through one or more solenoid valvesand directed through the manifolds to the dispensing modules. The heatedfluid is supplied from a compatible delivery system through a heated hose.Figure 4 shows the flow of fluid and air through the applicator.

The manifold temperatures are controlled through the customer’s fluidsupply equipment or a separate control system. Resistance temperaturedetectors (RTDs) located in the manifolds complete the temperature loop bysupplying real-time temperature information to the control system, whichthen activates the heaters as needed to maintain a specified temperature.

Fluid is applied to the product through the three-way dispensing modulesinstalled on the applicator. Depending on customer specifications, thedispensing modules can be either group-controlled or individually controlled,allowing for a wide range of application configurations.

Open(dispensing)

Closed(recirculating)

Fluid output to module

Recirculation port(back to fluid supply)

Fluide supply

Module-actuating air supply

Module needle position

Figure 4 Flow of fluid and air through an LVM-900 applicator



Applicator Control Setup and operation of the applicator is accomplished through thecustomer’s fluid supply and/or control system equipment. Refer to thecustomer equipment product manuals for setup and operating procedures.

Safety Features The applicator is equipped with a torque-tender disengaging clutch. In apump over-torque situation, the clutch will disengage, preventing damage tothe pump. The clutch is aligned with a proximity switch that detects whenthe clutch is disengaged and supplies an alarm signal to the control system,preventing further motor operation.



Applicator Identification See Figure 5. You will need the model and part number of your applicatorwhen requesting service or ordering spare parts and optional equipment.The model and part number are indicated on the equipment identificationplate.

Figure 5 Location of the equipment identification plate on a Universal LVM-900applicator



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Installation This section provides procedures for installing the applicator and preparingit for initial operation.

Items Needed You will need the following items to install the applicator:

� personal protective equipment for working with hot fluid� drain pans and waste containers suitable for waste fluid� device to lift and position the applicator� heated hydraulic hoses� air line tubing (3/8-in. or 10-mm OD or larger)� set of standard and metric hex-head wrenches� flat-blade and Phillips-head screwdrivers� anti-seize lubricant



Mount the Applicator 1. Carefully unpack the applicator and inspect if for any damage that may

have occurred during shipping. Report any damage to your Nordsonrepresentative.

2. Select a mounting location that

� provides enough clearance to service the applicator

NOTE: Refer to Applicator Specifications under Technical Data forthe applicator dimensions and clearances.

� will not subject the applicator to extreme vibration or temperaturevariations

� will allow you to properly route hoses (see Figure 8). Improperrouting and venting of hoses could result in overheating, damage,and poor fluid flow. Hoses should not be bundled or tie-wrapped,bent at sharp angles, or allowed to lay on concrete floors or othercool surfaces that could conduct heat away from them.

� is close to a supply of dry, regulated, unlubricated air. NordsonCorporation also recommends the installation of a 5-microncoalescing pre-filter.

� will allow you to adjust the distance and/or angle between theapplicator and the product surface

3. See Figure 6. Use the lifting rings (2) to move the applicator into theposition where it will be mounted. Refer to Applicator Specificationsunder Technical Data for the weight of the applicator.

4. Mount the applicator on the production line using M16 bolts in themounting brackets (1). Be sure to install the insulators (3) to preventheat loss into the mounting brackets.



4.61(NOZZLE CENTERLINE)

117.16

M16 x 2.0 THREAD(MOUNTING STUD)

19.50495.30

568.8322.39

14.00(LIFT RINGS)

355.60

2

1

3

Figure 6 Applicator mounting dimensions and bolt pattern

1. Mounting brackets 2. Lifting rings 3. Insulator



Connect Hoses Throughout the hose installation process, follow the guidelines shown inFigure 8.

CAUTION! Improper routing and venting of hoses could result inoverheating, damage, and poor fluid flow. To ensure proper operation, donot bundle or tie-wrap the hoses, do not bend the hoses at sharp angles,and do not allow the hoses to lay on concrete floors or other cool surfacesthat could conduct heat away from a hose.

1. See Figure 7. Use two wrenches to connect the fluid supply hose to thefluid input hose fitting (1) and the fluid recirculation hose to the fluidrecirculation hose fitting (2).

2. Route the hoses from the applicator to the fluid supply and connectthem to the fluid supply.

NOTE: For the recommended input supply pressure, refer to ApplicatorSpecifications under Technical Data.

1 (#6 JIC)

2 (# 6 JIC)

Figure 7 Location of the hose fittings

1. Fluid input hose fitting 2. Fluid recirculation hose fitting



ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ



P/N 111 940

X=13 mm (0.50 in.)

R=203 mm (8.00 in.)

P/N 271 486 − 8 mm (5/16 in.)P/N 274 174 − 16 mm (5/8 in.)

X

P/N 274 174 − 29 mm (1 1/8 in.)

Figure 8 Hose installation guidelines



Connect the Air Supply See Figure 9. Connect a supply of clean, dry, unlubricated air to the airsupply input fitting for module air actuation.

NOTE: Nordson Corporation recommends the installation of a 5-microncoalescing pre-filter.

NOTE: For the recommended air pressure, refer to ApplicatorSpecifications under Technical Data.

10 mm

Figure 9 Location of the air supply input fitting



Make the Electrical Connections Make the electrical connections shown in Table 3 to the appropriate controlequipment, such as a melter or customer-designed controller). You will needextension, splitter, motor, and pressure transducer cables as appropriate foryour operation. Refer to the control equipment documentation or contactyour Nordson representative for assistance as needed.

NOTE: Refer to Parts for cable part numbers.

Table 3 Applicator Electrical Connections (see Figure 10)

Component Connect to... And then connect to... Item No. inFigure 10

Heater cordsets Cordset junction box Fluid supply or controlequipment (such as aNordson melter or acustomer-designedcontroller) using splitterand/or extension cables

1

RTD cordsets Cordset junction box Fluid supply or controlequipment (such as aNordson melter or acustomer-designedcontroller) using splitterand/or extension cables

2

Motor cable Motor cable connection Control equipment (such asa Nordson melter or acustomer-designedcontroller)

3

Pressure transducer cable

NOTE: Use the pressuretransducer input to ensurethat the supply pressuredoes not fall below 5 bar(75 psi).

Pressure transducercordset

Control equipment (such asa Nordson melter or acustomer-designedcontroller)

4

Proximity switch cable Proximity switch Control equipment (such asa Nordson melter or acustomer-designedcontroller)

5

NOTE: Refer to the wiring diagrams provided under Technical Data as needed.



1

2

1

3

5

4

Figure 10 Location of applicator electrical connections

1. Heater cordsets2. Sensor cordsets

3. Motor cable connection4. Pressure transducer cordset

5. Proximity switch cableconnection



Connect the Solenoid Valve Wiring Connect the solenoid valve wiring to the control equipment (such as aPLC/PLS or pattern controller) that will send the signal to actuate themodules. Ensure that the connectors are compatible. Refer to the controlequipment documentation.

Check for Correct Applicator Installation Before operating the applicator for the first time, follow these steps toensure that the applicator was properly installed and to prepare it for routineoperation.

1. Apply power to the applicator.

2. Set the temperatures for the applicator’s heated zones.

NOTE: Refer to the fluid’s technical data sheet for the recommendedapplication temperature.

3. Turn on the module-actuating air and set the pressure.

NOTE: Refer to Applicator Specifications under Technical Data for airpressure specifications.

4. When the system has reached application temperature, set theapplicator pump speed and start the pump.

NOTE: Refer to Applicator Specifications under Technical Data for theminimum, maximum, and recommended pump speeds.

5. Apply the module-actuation signal to the solenoid valves to test the fluidoutput.

6. Before starting the pump, use the pressure transducer input to ensurethat the supply pressure to the applicator is greater than 5 bar (75 psi).

7. Start the production line.



CAUTION! Operation of the applicator when the rotational direction of thepump shaft is incorrect will result in no fluid output, and could damage thepumps.

8. If there is no fluid output, stop the fluid supply and the applicator pumpsand make the following checks:

� Ensure that the input supply pressure is within the range specifiedunder Applicator Specifications later in this manual.

� Refer to Motor Rotational Check under Service to verify that thepump shaft is rotating in the correct direction.

9. Adjust the system as necessary until the desired metering accuracy isobtained. When the applicator is applying fluid properly, continue to thenext procedure to flush the applicator.

NOTE: The minimum input supply pressure should be equal to theapplication pressure, which will take into account the viscosity, add-onrate, and nozzle type. If the input supply pressure is too low, there willbe a greater variation between fluid streams. As long as the input supplypressure is steady and all streams are equal, sufficient input supplypressure has been obtained. Nordson Corporation recommendssupplying the same fluid volume as the applicator is dispensing, plustwo percent, thus ensuring that the applicator pump never starves forfluid.

NOTE: To ensure metering accuracy, do not run the pump below 5 bar(75 psi).

Flush the Applicator Flushing the applicator removes fluid, test solutions, and othercontaminants. Flushing also helps prevent nozzle clogging and makes theapplicator work more efficiently. The applicator should be flushed

� before initial use� anytime you change the fluid type� as needed to meet the safety and operating requirements of your

application

Refer to Applicator Flushing under Service later in this manual to flush theapplicator before placing it into routine operation. Refer to the next section,Operation, for operational guidelines.



Operation Refer to the fluid supply and control equipment manuals and any otherapplicable system manuals for operating instructions. The followingoperational guidelines are recommended for all applications:

� Before starting the pump, use the pressure transducer input toensure that the supply pressure to the applicator is greater than5 bar (75 psi). Running the pump below 5 bar (75 psi) maycompromise metering accuracy.

� Flush and/or clean (sterilize) the applicator and the fluid supplycomponents as needed to meet the safety and operatingrequirements of your application. Refer to Service for the flushingand cleaning procedures.

NOTE: Routine flushing and sterilization will remove any blockagesfrom the applicator’s fluid passageways, thus maintaining fluidquality and metering accuracy. For most applications, flushing isadequate. To fully sterilize the applicator, follow the applicatorcleaning procedure provided under Service.



Maintenance Use the following maintenance schedule as a starting point for developing acustomer-specific maintenance schedule for your application. Maintenanceintervals are for reference only.

Table 4 Recommended Maintenance

Frequency Maintenance Activity

Daily � Check for leaks at all external connections.� Check for leaks at all hose fittings.� Check for twists or kinks in hoses.� Check for blockages by observing the pressure indicator.� Check temperature regulation by observing the readout.� Check electrical connections.

As needed � Flush and/or clean (sterilize) the applicator and the fluid supplycomponents as needed to meet the safety and operatingrequirements of your application. Refer to Applicator Flushing andApplicator Disassembly and Cleaning under Service later in thismanual.

NOTE: Routine flushing and sterilization will remove any blockages fromthe applicator’s fluid passageways, thus maintaining fluid quality andmetering accuracy. For most applications, flushing is adequate. To fullysterilize the applicator, follow the applicator cleaning procedure providedin this section.



Troubleshooting Troubleshooting begins when the flow of fluid from the applicator stops ordiminishes unexpectedly or when a control system alerts you of a problemthrough an alarm or visual display. This section covers only the mostcommon problems you may encounter. If you cannot solve a problem withthe information given here, contact your local Nordson representative forhelp.

For additional troubleshooting information, refer to the fluid supply andcontrol equipment manuals and any other applicable product manuals.

Applicator Heating Problems

WARNING! Risk of personal injury or death. Allow only qualified personnelto perform electrical installation, troubleshooting, or repair procedures.Before performing any electrical procedure, review the Safety section of thismanual and disconnect and lock out electrical power to the system.

Problem Possible Cause Corrective Action1. Applicator does not

heatSystem power not on Verify that the system power is turned

on.

Loose electrical connections Verify that all electrical connections(cordsets and cables) are secure.

Broken or missing pins ordamaged cordset connectors

Check for broken or missing pins ordamaged connectors at all electricalconnections. Repair or replacedamaged components.

Fluid temperature setpoints too low Adjust the temperature setpoints asnecessary. Refer to the fluid supply orcontrol system manuals.

Continued...



Problem Possible Cause Corrective Action2. Unstable temperature

or pressure readingsLoose electrical connection Verify that all electrical connections

(cordsets and cables) are secure.Incorrect PID (proportional,integral, derivative) settings orincorrect type of control system orcontroller used to operateapplicator

Adjust PID settings as needed. Referto the manual for the control systemor controller being used.

Unstable pressure supply toapplicator

Check the fluid supply equipment toensure that there is a stable pressuresupply to the applicator.

3. Applicator underheatsor overheats

Temperature setpoints too low ortoo high

Adjust the temperature setpoints asnecessary.

Failed heater or RTD Check the resistance of the suspectheater or sensor. Refer to WiringDiagrams under Technical Data forcordset pin diagrams.

The resistance of a 100-ohm platinumRTD should be 100 ohms at roomtemperature [approximately 21 �C(70 �F)]. The resistance of a 120-ohmnickel RTD should be 120 ohms.

To determine what the resistance of aheater should be, use the followingformula: V2 W= R (whereV=voltage, W=wattage, andR=resistance). LVM-900 applicatorheaters are 500 W.

Replace failed components asnecessary. Refer to Service for heaterand RTD replacement procedures.

RTD not touching bottom of well,reporting incorrect temperature

Ensure that all RTDs are fully seated.

Incorrect PID settings or incorrecttype of control system or controllerused to operate applicator

Adjust PID settings as needed. Referto the control system productmanuals.



Fluid Output Problems

Problem Possible Cause Corrective Action

1. Fluid output too low ortoo high



Incorrect fluid supply inputpressure

Ensure that the correct input supplypressure is being obtained from thefluid supply equipment. A stable inputpressure at the correct value isachieved when the pump isvolumetrically receiving the sameamount of fluid that it is dispensing.Refer to Applicator Specificationsunder Technical Data for the inputsupply pressure range.

Blockage in supply or recirculationhose or hose connections

Check for a cold connection orimproper hose routing. Installinsulation around any coldconnections.

Blockage in module or nozzle Check for blockage in the module ornozzle.

2. No fluid output Fluid not at applicationtemperature

Wait for the system to reachapplication temperature.



Incorrect fluid supply inputpressure

Ensure that the correct input supplypressure is being obtained from thefluid supply equipment. A stable inputpressure at the correct value isachieved when the pump isvolumetrically receiving the sameamount of fluid that it is dispensing.Refer to Applicator Specificationsunder Technical Data for the inputsupply pressure range.

Fluid level low Add fluid to the fluid supply.

Blockage in supply or recirculationhose or hose connections

Check for a cold connection orimproper hose routing. Installinsulation around any coldconnections.

Continued...




2. No fluid output (contd.) Module stem stuck in closedposition; debris or char preventingstem movement

Replace the module with a new orrebuilt module.

Module piston seal worn out Replace the module with a new orrebuilt module.

Fluid or debris in module pistonbore


NOTE: To prevent the migration offluid into the air supply, ensure thatthere is no fluid on the manifold facewhen a module is replaced.

Failed solenoid valve Check the solenoid valve and replaceas needed.

Failed or faulty solenoid valvetriggering device

Troubleshoot the triggering device.Refer to the triggering devicedocumentation.

3. Fluid output cannotbe shut off

Module stem stuck in openposition; debris or char preventingstem movement


Module piston seal worn out Replace the module with a new orrebuilt module.

Fluid or debris in module pistonbore


NOTE: To prevent the migration offluid into the air supply, ensure thatthere is no fluid on the manifold facewhen a module is replaced.



Fluid Leakage Problems

CAUTION! Operation of the applicator motor in the wrong direction forextended periods of time will severely damage the applicator, causinggeneral O-ring and seal failure and leakage at various points throughout theapplicator. To ensure that the motor is operating in the correct direction,refer to Motor Rotational Check under Service.


1. Leaks at variousconnecting points inth t

Insufficient torque on bolts orscrews

Tighten bolts and screws whereleakage is occurringg p

the system Damaged or worn O-rings or seals Replace O-rings or seals as needed.Contact your Nordson representativefor information on complete applicatordisassembly and reassembly.

2. Leaks at pump Damaged or worn pump O-ringsand/or seals

Replace the pump O-rings and seals.Contact your Nordson representativefor information on complete applicatordisassembly and reassembly.

3. Leaks between amodule and themanifold

Insufficient torque on modulescrews

Tighten the module screws to3−4 Nm (25−32 in.-lb).

Damaged or worn O-rings on backof module

Replace the O-rings.

4. Leaks at nozzle Input supply pressure too high Decrease the input supply pressure.

Damaged or worn O-ring in moduleseat

Replace the O-ring.

5. Leaks at hoseconnection

Loose hose connection Tighten the connection.

Failed hose fitting O-ring Replace the hose fitting O-ring.



Pump and Drive Problems


1. Motor stops or fails tostart

System power not on Verify that the system power is turnedon.

System ready condition notreached

Wait until the system ready conditionis reached.

Loose line speed tachometerwiring connections

Check the wiring connections.

Failed motor Measure the resistance across themotor windings. If the circuit is open,replace the motor.

Motor overtemperature alarmactivated

Troubleshoot the motor.

Problem in on/off circuit Check for loose wiring or defectiveswitches.

Problem in motor controller Troubleshoot the motor controller.

2. Pump not turning( i )

Broken key Replace the key.p g(motor running) Pump binding Contact your Nordson representative.

3. Excessive torque indrive system

Fluid not at operating temperaturewhen pump started

Increase temperature setpoints to thenormal settings. Avoid starting thepump at below-normal temperaturesettings.

Plugged output at one or morepositions

Check for plugged module or nozzlepassages.

Drive component misalignment Ensure that the drive components areproperly installed and aligned. Referto Applicator Cleaning andDisassembly under Service forinformation on correct drivecomponent installation.

4. Excessive torque indrive system

Pump binding or locking up Replace the pump. Contact yourNordson representative for pumpreplacement assistance as needed.



Air Supply Problems

Problem Possible Cause Corrective Action1. Module-actuating air

leakingFailed piston seal inside module Replace the module with a new or

rebuilt module.

Failed solenoid valve (solenoidvalve used beyond expected life)

Check the solenoid valve and replaceif necessary.

2. No module-actuatingair

Failed solenoid valve (solenoidvalve used beyond expected life)

Check the solenoid valve and replaceif necessary.

Failed air pressure regulator orinsufficient air supply to theregulator

Check the regulator and the airsupply to the regulator.



Service Use these service procedures as needed.

System Pressure Relief 1. Heat the system to application temperature.

2. See Figure 11. Place a drain pan under the applicator pressure reliefvalve (1) that is located on the opposite side of the recirculation plug (2).

3. Turn the relief valve screw one turn counterclockwise.

4. Open the modules.

5. When all fluid has drained from the drain hole under the pressure reliefvalve, close the modules

6. Turn the pressure relief valve screw one turn clockwise to close thevalve.

1 2

Figure 11 Location of the pressure relief valve

1. Pressure relief valve 2. Recirculation plug



Applicator Flushing A note should be added about the type of flushing media used to cover us.Water alone does not provide adequate lubrication.

Prepare for Flushing 1. Heat the system to application temperature.

2. See Figure 12. Disconnect the fluid supply hose from the fluid inputhose fitting.

CAUTION! Use a flushing material that contains some level of lubricity.Using only water (without any additive for lubricity) can cause pumpdamage.

3. Connect the flushing material supply hose to the fluid input hose fitting.

#6 JIC

Figure 12 Location of the fluid input hose fitting

4. Disconnect the recirculation hose from the fluid supply and route it into awaste container.

Flush the Applicator 1. Open all the modules and run the system until only the flushing material

is flowing from the modules.

2. Stop the system and close the modules.



3. See Figure 13. Place a drain pan under the applicator pressure reliefvalve (1) that is located on the opposite side of the recirculation plug (2).

4. Open the applicator pressure relief valve by turning the valve screw oneturn counterclockwise.

5. Run the system the system until only the flushing material is flowingfrom the pressure relief valve drain.

NOTE: This step cleans the recirculation path.

6. Open and close the pressure relief valve several times to alternate flowbetween the recirculation hose and the valve, thus ensuring that bothpassageways are flushed.

1 2

Figure 13 Location of the pressure relief valve

1. Pressure relief valve2. Recirculation plug

7. Stop the system.

8. Repeat steps 1. through 6. at least two more times to thoroughly flushthe applicator.



Restore the System to Normal Operation 1. Stop the system and tighten the pressure relief valve screw to close the

valve.

2. Reconnect the fluid supply hose to the fluid input hose fitting.

3. Reconnect the recirculation hose to the fluid supply.

4. Clean the nozzles. Refer to the nozzle-cleaning instruction sheet,P/N 1053027. Visit emanuals.nordson.com to download technicaldocumentation.

5. Restore the system to normal operation.



Heater Replacement 1. Disconnect and lock out power to the applicator.

2. Disconnect the heater cordset.

3. See Figure 14. Remove the screw that secures the heater and thenremove the heater.

4. Install the replacement heater and secure it with the screw removedpreviously.

5. Connect the new heater cordset and restore the system to normaloperation.

Figure 14 Replacing a heater



RTD Replacement 1. Disconnect and lock out power to the applicator.

2. Disconnect the RTD cordset.

3. See Figure 15. By hand, turn the locking collar (2) that secures theRTD (1) to the thermowell (3) one-quarter turn counterclockwise andthen pull the RTD straight out.

4. Install the new RTD and secure it with the locking collar.

5. Connect the new RTD cordset and restore the system to normaloperation.

2

1

3

Figure 15 Replacing an RTD

1. RTD2. Locking collar

3. Thermowell



Module Replacement NOTE: Modules can be rebuilt. Refer to Module Rebuild later in thissection.

CAUTION! Do not replace a stainless-steel module with an aluminummodule. Doing so may cause application problems and module failure.

Remove a Module 1. Heat the system to application temperature.

2. Relieve pressure in the applicator by loosening the pressure relief bleedscrew on both the filter block and the pressure transducer block.

3. Trigger the solenoid valves to open the modules and relieve anyremaining pressure.

4. Shut off the module-actuating air.

5. Disconnect the solenoid valve electrical connection.

6. See Figure 16. Remove the module mounting screws (1) and thenremove the module. Discard the module O-rings (2).

1

2

Figure 16 Replacing a module

1. Module mounting screws 2. Module O-rings



Install a Module 1. Wipe off any fluid on the applicator, especially around the air ports, and

momentarily turn the module-actuating air on to blow any residual fluidout of the ports.

NOTE: Take care not to wipe fluid into any ports.

CAUTION! Do not apply O-ring lubricant to O-rings located between themodule and the applicator manifold. Doing so could allow lubricant tomigrate into the air passages, negatively affecting module performance.

2. Ensure that the O-rings are properly inserted in the O-ring bores on theback of the replacement module.

3. Coat the module mounting screws with anti-seize lubricant and usethem to secure the replacement module assembly to the applicator.Tighten the screws to 3.4 N�m (30 in.-lb).

4. Test the module assembly for correct operation.

5. Restore the system to normal operation. For best results, recheck thetorque of the module mounting screws after the applicator reachesapplication temperature.



Nozzle Removal/Installation Follow this procedure whenever nozzle cleaning or replacement is required.

Remove a Nozzle 1. Heat the system to application temperature.

2. Relieve pressure in the applicator by loosening the pressure relief bleedscrew on both the filter block and the pressure transducer block.

3. Trigger the applicator solenoid valves to relieve any remaining pressure.


5. Remove the nozzle as follows:

See Figure 17.

a. Back the nozzle-retaining clamp screw (1) all the way out until itstops.

b. Push the nozzle-retaining clamp (2) toward the module to eject thenozzle (3).

Opened Closed

1

2

3

4

Figure 17 Nozzle removal or installation

1. Nozzle-retaining clamp screw2. Nozzle-retaining clamp

3. SureWrap nozzle (airless) 4. Nozzle O-ring



Install a Nozzle 1. Clean the mating surface where the nozzle will be seated.

2. Install the nozzle as follows:

a. Inspect the nozzle O-ring, replace if necessary, and ensure that theO-ring is lubricated and properly positioned in the O-ring bore.

b. Carefully insert the nozzle in the module seat.

CAUTION! Overtightening a nozzle-retaining clamp screw can damage themodule.

c. Tighten the nozzle-retaining clamp screw to 1.7 N�m (15 in.-lb).

Nozzle Cleaning For applications using water-soluble fluids, clean nozzles using hot water orsteam. Light brushing may be needed to remove stubborn debris.

For applications using non-water-soluble fluids, refer to the nozzle-cleaninginstruction sheet (P/N 1053027) available on http://emanuals.nordson.com/,or contact your Nordson representative for assistance.



Module Rebuild You will need the following items:

� module rebuild kit (refer to Parts)

� Dow Corning 111 lubricant (for O-rings)

CAUTION! Risk of equipment damage. Universal LVM-900 applicators andmodules use an enhanced grade of Viton O-ring and seal. To maintain thefluid compatilbily of the applicator, replace O-rings and seals with only theO-ring and seal part numbers provided under Dispensing Module underParts.

CAUTION! Use only Dow Corning 111 lubricant. Use of other lubricants willrisk fluid compatibiliy and/or FDA compliance.

Disassemble the Module 1. Remove the module to be rebuilt. Refer to Remove a Module earlier in

this section as needed.

2. Remove the nozzle and adapter (if applicable) from the module. Refer toRemove a Nozzle earlier in this section as needed.

3. Remove and discard the module O-rings (1).

4. See Figure 18. Using a 2-mm hex wrench, remove the air cap (1) andmodule return spring (2)

1

2

Figure 18 Removing the air cap and module return spring

1. Air cap 2. Module return spring



Disassemble the Module (contd)5. See Figure 19. Remove the solenoid valve (2) and heat isolator (1).

2

1

Figure 19 Removing the solenoid valve and heat isolator

1. Heat isolator 2. Solenoid valve

6. See Figure 20. Remove and discard the module O-rings.

Figure 20 Removing the O-rings



7. See Figure 21. Thread a hex-head screw into the valve assembly andthen pull straight out to remove the valve assembly.

Figure 21 Removing the valve assembly

8. See Figure 22. Remove and discard the valve assembly O-rings.

Figure 22 Location of the valve assembly O-rings



Disassemble the Module (contd)9. See Figure 23. Remove the clamp assembly from the module body.

Figure 23 Removing the clamp assembly

Clean the Module Components Clean the module components as deemed necessary to meet the safetyand operating requirements of your application. Use a cleaner that iscompatible with AL6XN stainless-steel components and does not leave anyresidue.



Reassemble the Module Use the new module components listed under Dispensing Module underParts as you perform this reassembly procedure.

CAUTION! Risk of equipment damage. Use only the replacement O-ringsand seals shown under Parts. Substitution of O-rings or seals from othermanufacturers can cause fluid to leak into the pneumatic section or out fromthe front of the module.

See Figure 24.

1. Apply Dow Corning 111 lubricant to new valve assembly (3) O-rings andinstall the O-rings.

CAUTION! Do not allow the valve assembly fasterner to bottom-out insidethe threaded bore.

2. Use a hex-head screw (2) to install the valve assembly in the modulebody (5), then remove the screw.

CAUTION! Do not apply lubricant to any O-rings associated with the air cap.Doing so could allow lubricant to migrate into the air passages, negativelyaffecting module performance.

3. Apply Dow Corning 111 lubricant to new module body O-rings (6) andinstall the O-rings.

4. Install a new air cap O-ring (4) and reinstall the module return springand air cap (1).

5. Apply anti-seize lubricant to the threads of the two solenoid valve screwsand use them to install a new or existing solenoid valve and heatisolator (7). Tighten the solenoid valve screws to 0.5−0.8 N�m(5−7 in.-lb).

6. Reinstall the clamp assembly (8).

7. Reinstall the module on the applicator. Refer to Install a Module earlierin this section as needed.

8. Reinstall the nozzle. Refer to Install a Nozzle earlier in this section asneeded.




1

5

3

8

7

4

56

2 (remove after use)

Figure 24 Assembling a module

1. Air cap and module return spring2. Hex-head screw used to install the

valve assembly (remove after use)3. Valve assembly

4. Air cap O-ring5. Module body6. Module body O-rings

7. Solenoid valve and isolator8. Clamp assembly

Note: Remove the hex-head screw (item 2) after it is used to install the valve assembly.



Motor Rotational Check For proper operation, the applicator motor must be rotating in the correctdirection. Operation of the applicator when the rotational direction isincorrect will severly damage the applicator.

The rotational direction of the motor should be checked:

� before operating the system for the first time

� after any changes have been made to the system (such as replacingthe pump or disassembling and reassembling the applicator)

1. Before performing this procedure, ensure that:

� the applicator has been properly installed (refer to Installation)

� all components in the system are heated to application temperature

� fluid is flowing through the system

2. Verify that the orientation of the drive rotation arrow engraved on theend of the pump shaft matches Figure 25. If it does, then the rotationaldirection of the motor is correct.

3. If the rotational direction is not correct:

a. Stop the motor, if applicable.

b. Refer to the motor controller documentation to change the motorrotation. Return here to continue.

c. Repeat step 2 to ensure that the orientation of the drive rotationarrow is correct.

4. When you have verified that the motor is rotating in the correct direction,restore the system to normal operation.



Figure 25 Correct orientation of the shaft rotational direction arrow



Motor Replacement 1. Disconnect and lock out power to the applicator.

2. See Figure 26. Disconnect the motor cable from its connector (1).

3. Remove the screws and washers that secure the motor (2) to the drivemounting plate (3) and then remove the motor.

4. Position the new motor on the pump shaft and secure the motor to thedrive mounting plate using four screws and washers removedpreviously. Tighten the screws to 5.6 N�m (50 in.-lb).

5. Reconnect the motor cable.


1

2

3

Figure 26 Replacing the motor

1. Motor cable connection2. Motor

3. Drive mounting plate



Pump Replacement

Remove the Pump 1. Heat the system to application temperature.

2. Relieve system pressure. Refer to System Pressure Relief earlier in thissection as needed.

3. Disconnect and lock out the motor control to the applicator and disablethe solenoid valve power supply.


5. See Figure 27. Remove the top and bottom coupling guards.

Figure 27 Removing the top and bottom coupling guards



Remove the Pump (contd)6. See Figure 28. Disconnect the motor (2) and proximity switch (3) cables.

7. Loosen the set screws (4) that secure the torque tender to the pumpshaft.

8. Remove the screws (1) that secure the drive assembly to the drivemounting spacers

9. Carefully pull the drive assembly off of the pump shaft. The torquetender will move freely, but should be left engaged to the drive assemblyto facilitate re-installation.

4

3

1

2

Figure 28 Removing the drive assembly

1. Drive assembly securing screws2. Motor

3. Torque tender set screw4. Proximity switch



10. See Figure 29. Remove the screws that secure the pump to the pumpmounting manifold plate and them pull the pump away from themounting plate. Remove and discard the pump O-rings.

Figure 29 Removing the pump



Install the Pump 1. Ensure that the mating surfaces of the applicator and the replacement

pump are clean of all fluid and debris.


2. See Figure 30. Install new O-rings in the bores on the pump mountingplate pump mounting plate.

NOTE: If the O-rings will not stay in the bores, apply a light coat of DowCorning 111 lubricant to them.

Figure 30 Location of the pump O-rings



CAUTION! Risk of equipment damage. Ensure correct alingment of thepump. Misalignment may cause drive binding, excessive pump wear, and/orover-torquing of the motor.

3. See Figure 31. Apply a small amount of anti-seize lubricant to thethreads of the six pump mounting screws removed previously and usethem to secure the new pump to the mounting plate. Tighten the screwsto 45 N�m (400 in.-lb).

4. Ensure that the dowel pins located inside the pump mounting bolt holesprotrude slightly from the mounting surface. They will be used tocorrectly align the pump to the manifold plate.

Figure 31 Installing the pump



Install the Pump (contd)5. See Figure 32. Carefully align and position the drive assembly (1) on the

pump shaft, push the torque tender (3) as close to the pump as it will go,and secure the torque tender set screw (4).

6. Align the drive mounting plate (2) and the secure the drive assemblywith the screws removed previously. Tighten the screws to 25 N�m(250 in.-lb).

4

1

3

2

Figure 32 Installing the drive assembly

1. Drive assembly2. Drive mounting plate

3. Torque tender4. Torque tender set screw



7. See Figure 33. Check the proximity switch placement and adjust asneeded.

1−5 mm

1−2 mm

Figure 33 Proximity switch clearances

8. Refer to Motor Rotational Check earlier in this section to verify that thepump shaft is rotating in the correct direction. Return here to continue.

9. Reinstall the top and bottom coupling guards.




Applicator Disassembly and Cleaning To obtain optimum performance from your stainless-steel applicator,perform these disassembly and cleaning procedures.

You will need the following items:

� replacement pump O-rings

� replacement gasket

� Dow Corning 111 lubricant (for O-rings)

CAUTION! Risk of equipment damage. Universal LVM-900 applicators andmodules use an enhanced grade of Viton O-ring and seal. To maintain thefluid compatilbily of the applicator, replace O-rings and seals with only theO-ring and seal part numbers provided under Parts.

Prepare for Disassembly 1. Heat the system to application temperature.

2. Relieve system pressure. Refer to System Pressure Relief earlier in thissection as needed.

3. Disconnect and lock out the motor control to the applicator and disablethe solenoid valve power supply.


5. Disconnect the supply and recirculation hoses.

6. Remove the applicator from the parent machine and place it on a flat,sturdy work surface.



Disassemble the Applicator 1. See Figure 34. Remove the top and bottom coupling guards.

Figure 34 Removing the top and bottom coupling guards



Disassemble the Applicator (contd)2. See Figure 35. Disconnect the motor (2) and proximity switch (3) cables.

3. Loosen the set screws (4) that secure the torque tender to the pumpshaft.

4. Remove the screws (1) that secure the drive assembly to the pumpmounting plate.

5. Carefully pull the drive assembly off of the pump shaft. The torquetender will move freely, but should be left engaged to the drive assemblyto facilitate re-installation.

4

3

1

2

Figure 35 Removing the drive assembly

1. Drive assembly securing screws2. Motor

3. Torque tender set screw4. Proximity switch



6. See Figure 36. Disconnect the heater, RTD, and pressure transducercordsets and remove these components from the applicator.

Figure 36 Removing the heaters, RTD, and pressure transducer

7. See Figure 37. Remove the screws that secure the pump to the pumpmounting manifold plate and them pull the pump away from themounting plate.

Figure 37 Removing the pump



Disassemble the Applicator (contd)8. See Figure 38. Remove all other hardware from the manifolds. Remove

and discard the pump O-rings.

Figure 38 Removing hardware from the manifolds

9. See Figure 39. Remove all the modules and the pressure relief valves.Refer to Remove a Module later in this section as needed.

Figure 39 Removing the modules and pressure relief valves



CAUTION! Risk of equipment damage. Do not scratch or in any waydamage the interior surfaces of the manifold plates. Doing so cancompromise fluid flow.

10. See Figure 40. Remove the screws that secure the manifold platestogether and then carefully pull the plates apart. Remove and discardthe gasket.

1

2

3

Figure 40 Separating the manifold plates

1. Pump mounting manifold plate2. Gasket

3. Module mounting manifoldplate

Clean the Applicator Components

CAUTION! Risk of equipment damage. Do not scratch or in any waydamage the interior surfaces of the manifold plates. Doing so maycompromise fluid channel separation or create fluid leaks.

Clean the applicator components as deemed necessary to meet the safetyand operating requirements of your application. Use a cleaner that iscompatible with AL6XN stainless-steel components and does not leave anyresidue.



Reassemble the Applicator


1. See Figure 41. Install a new gasket (2) in the groove on pump mountingmanifold plate (1).

NOTE: If needed, use Dow Corning 111 (or equivalent) to hold thegasket inside the groove during reassembly.

CAUTION! Risk of equipment damage. Do not scratch or in any waydamage the interior surfaces of the manifold plates. Doing so maycompromise fluid channel separation or create fluid leaks.

2. Applying anti-seize lubricant to the manifold screws removed previouslyand use them to reassemble the mounting plates (1, 3). Tighten thescrews to 45 N�m (400 in.-lb).

1

2

3

Figure 41 Assembling the manifold plates

1. Pump mounting manifold plate2. Gasket

3. Module mounting manifoldplate



3. See Figure 42. Reinstall the modules and pressure relief valves. Referto Install a Module earlier in this section as needed.

Figure 42 Installing the modules and pressure relief valves

4. See Figure 43. Reinstall new pump O-rings and all the other hardwareon the manifolds.

NOTE: If the O-rings will not stay in the bores, apply a light coat of DowCorning 111 lubricant to them.

Figure 43 Reinstalling hardware



Reassemble the Applicator (contd)

CAUTION! Risk of equipment damage. Ensure correct alingment of thepump. Misalignment may cause drive binding, excessive pump wear, and/orover-torquing of the motor.

5. See Figure 44. Apply a small amount of anti-seize lubricant to thethreads of the six pump mounting screws removed previously and usethem to secure the new pump to the mounting plate. Tighten the screwsto 45 N�m (400 in.-lb).

6. Ensure that the dowel pins located inside the pump mounting bolt holesprotrude slightly from the mounting surface. They will be used tocorrectly align the pump to the manifold plate.

Figure 44 Installing the pump



7. See Figure 45. Install the heaters, RTDs, and pressure transducers.

Figure 45 Installing the heaters, RTD, and pressure transducer

8. See Figure 46. Carefully align and position the drive assembly (1) on thepump shaft, push the torque tender (3) as close to the pump as it will go,and secure the torque tender set screw (4).

9. Align the drive mounting plate (2) and the secure the drive assemblywith the screws removed previously.

4

1

3

2

Figure 46 Installing the drive assembly

1. Motor2. Drive mounting plate

3. Torque tender4. Torque tender set screw



Reassemble the Applicator (contd)10. See Figure 47. Check the proximity switch placement and adjust as

needed.

1−5 mm

1−2 mm

Figure 47 Proximity switch clearances

11. Reinstall the top and bottom coupling guards.

12. Reinstall the applicator on the parent machine, connect all cables, andrestore the system to normal operation. Refer to the procedures underInstallation as needed.



Parts To order parts, call the Nordson Customer Service Center or your localNordson representative. Use these five-column parts lists, and theaccompanying illustrations, to describe and locate parts correctly. Thefollowing chart provides guidance for reading the parts lists.

The number in the Item column corresponds to the circled item number in theparts list illustration. A dash in this column indicates that the item is anassembly.

The number in the Part column is the Nordson part number you canuse to order the part. A series of dashes indicates that the part isnot saleable. In this case, you must order either the assembly inwhich the part is used or a service kit that includes the part.

The Description column describes the part and sometimesinclude

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