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Series H-400 Guns

Customer Product ManualPart 331170D

NORDSON CORPORATION D Duluth, Georgiawww.nordson.com

E 2005 Nordson CorporationAll rights reserved

331170DIssued 8/05

42-H400-MA-01

For CE Declaration, refer to melter manual.

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

Address all correspondence to:

Nordson CorporationAttn: Customer Service11475 Lakefield DriveDuluth, GA 30097

Notice

This is a Nordson Corporation publication which is protected by copyright. Original copyright date 1999. No part ofthis document may be photocopied, reproduced, or translated to another language without the prior written consent

of Nordson Corporation. The information contained in this publication is subject to change without notice.

Trademarks

AquaGuard, Blue Box, Control Coat, Equi=Bead, FoamMelt, FoamMix, Helix, Hot Shot, Hot Stitch, Meltex,MicroSet, MultiScan, Nordson, the Nordson logo, OmniScan, Package of Values, Porous Coat, Posi-Stop, ProLink,PRX, RBX, Shur-Lock, UniScan, UpTime, and Versa-Spray are registered trademarks of Nordson Corporation.

BetterBook, CF, Controlled Fiberization, Eclipse, Saturn, Seal Sentry, Swirl Coat, and Vistaare trademarks of Nordson Corporation.

Table of Contents i


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Table of Contents1. Safety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Symbols 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Qualified Personnel 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Intended Use 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation and Electrical Connections 4. . . . . . . . . . . . . . . . . . . . . . .

Operation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Less-Obvious Dangers 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Action in the Event of Unit Malfunction 5. . . . . . . . . . . . . . . . . . . .

Danger of Burns 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance/Repair 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cleaning 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thermoplastic Hot Melt Material 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Polyurethane Reactive (PUR) Hot Melt Material 8. . . . . . . . . . . . . .

Equipment and Material Disposal 8. . . . . . . . . . . . . . . . . . . . . . . . . . .

Polyurethane Reactive (PUR) Hot Melt Material 8. . . . . . . . . . . . . .

2. Description 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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3. Installation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inspection 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Items Needed 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Guidelines 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting the Guns 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Standard Guns 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Low-Profile Guns 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting the Air Supply 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting the Hose 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flushing the Guns 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparing for Operation 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. H-400 Gun Operating Range/Adjustment 19. . . . . . . . . . . . . . . . . . . . .

Operating Under 30 bar (450 psi) Hydraulic Pressure 19. . . . . . . . .

Compensating for Low Gun Air Pressure 20. . . . . . . . . . . . . . . . . . .

Returning a Gun Module to the Factory Setting 21. . . . . . . . . . . . . .

5. Operation 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting the System 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjusting Adhesive Application 22. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shutting Down the System 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6. Troubleshooting 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting Table 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking an Air Pressure Regulator 25. . . . . . . . . . . . . . . . . . . . . . .

Checking for a Clogged Gun Nozzle, Module, or Manifold 25. . . . .

Checking a Heater 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking an RTD 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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7. Repair 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cleaning Nozzles 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing a Gun Module 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing a Heater 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing an RTD 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing a Gun Manifold 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparation 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gun Disassembly 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gun Reassembly 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Restoration 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8. Parts 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the Illustrated Parts List 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Guns, Manifolds, and Heaters 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gun Heater Specifications 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gun Cordsets and RTDs 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gun Module 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Nozzles 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Solenoid Valves 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gun-to-Hose Fittings 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contentsiv


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Series H-400 Guns 1

E 200 5Nordson CorporationAll rights reserved

331170DIssued 8/05

42-H400-MA-01

Series H-400 Guns

WARNING: Allow only qualified personnel to perform thefollowing tasks. Follow the safety instructions in this documentand all other related documentation.

CAUTION: Risk of equipment damage. H-400 gun modulesare adjustable. Adjusting the gun modules for low air pressureoperation without making a corresponding reduction in hydraulicpressure may cause the gun modules to remain open.

Safety instructions contained in this section and throughout thisdocument apply to tasks that may be performed with or on the unit.Warnings related to specific safety concerns are included within the textas appropriate. It is very important that these safety instructions arealways followed. Failure to do so could result in personal injury and/ordamage to the unit or other equipment.

With this in mind, here are some basic safety recommendations:

S Read and become familiar with this Safety section prior to installing,operating, maintaining, or repairing the unit.

S Read and follow the warnings which appear within the text and arerelated to specific tasks.

S Store this document within easy reach of personnel operating ormaintaining the unit.

S Wear personal protective equipment and clothing such as safetygoggles and gloves.

S Familiarize yourself with and follow all safety instructions prescribedby your company, general accident-prevention regulations, andgovernment safety regulations.

1. Safety

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The following symbols are used to warn against dangers or possiblesources of danger. Become familiar with them! Failure to heed awarning could lead to personal injury and/or damage to the unit or otherequipment.

WARNING: Failure to observe may result in personal injury,death, or equipment damage.

WARNING: Risk of electrical shock. Failure to observe mayresult in personal injury, death, or equipment damage.

WARNING: Disconnect equipment from the line voltage.

WARNING: Hot! Risk of burns. Wear heat-protective clothing,safety goggles, and/or heat-protective gloves depending on thesymbols shown.

WARNING: Risk of explosion or fire. Fire, open flames, andsmoking prohibited.

WARNING: System or material pressurized. Relieve pressure.Failure to observe may result in serious burns.

CAUTION: Failure to observe may result in equipmentdamage.

CAUTION: Hot surface. Failure to observe may result inburns.

Safety Symbols

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“Qualified personnel” is defined here as individuals who thoroughlyunderstand the equipment and its safe operation, maintenance, andrepair. Qualified personnel are physically capable of performing therequired tasks, familiar with all relevant safety rules and regulations, andhave been trained to safely install, operate, maintain, and/or repair theequipment. It is the responsibility of the company operating theequipment to see that its personnel meet these requirements.

The unit is designed and intended to be used only for the purposedescribed in the Description section. Uses not in accordance with thatsection or as described in this document are considered unintended usesand not in accordance with governing regulations.

WARNING: Use of this equipment in ways other thandescribed in this document may result in personal injury, death,or equipment damage.

The following actions of the owner or operator of the unit are some, butnot all, examples of unintended use which would permit Nordson to claimit is not responsible for personal injury or property damage arising fromsuch unintended use:

S Unapproved modifications or changes to the unit

S Failure to comply with the safety instructions

S Failure to comply with instructions concerning installation, use,operation, maintenance, or repair, or when these tasks are carried outby unqualified personnel

S Use of inappropriate or incompatible foreign materials or auxiliaryequipment

S Failure to observe workplace safety rules or regulations issued bygovernment authorities or safety councils

Qualified Personnel

Intended Use

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WARNING: Failure to follow the safety procedures can result ininjury or death.

S All electrical, pneumatic, gas, and hydraulic connections andinstallations of hot melt equipment may only be carried out byqualified personnel. Be sure to observe installation instructions forcomponents and accessories.

S Equipment must be properly grounded and fused according to itsrated current consumption (see ID plate).

S Cables which run outside the unit must regularly be checked for wearor damage.

S Power supply wire gauge and insulation must be sufficient to handlerated current consumption.

S Cables must never be squeezed or pinched. Do not locate cables orhoses in high traffic areas.

The unit should be operated by qualified personnel in accordance withthe instructions presented in this document.

WARNING: Failure to follow the safety procedures can result ininjury or death.

S Never allow the unit to be operated by personnel under the influenceof substances which reduce their reaction times, or who are not ableto operate the equipment for physical reasons.

S Prior to each start-up of the unit, check protection and warningdevices and make sure they are fully functional. Do not operate theunit if these devices are not functioning properly.

S When the removal of safety equipment is required for installation,maintenance, or repair of the unit, it must be re-connectedimmediately upon completion of the work.

S Prior to start-up of the unit, check to make sure all safety guards andsafety equipment are in place and functioning properly.

Installation and ElectricalConnections

Operation

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S In a humid environment, only equipment featuring a correspondingclass of protection may be operated.

S Do not operate the unit in an explosive environment.

S Keep parts of the body or clothing away from rotating parts. Do notwear loose articles of clothing when operating or servicing units withrotating parts. Take off wrist watches, rings, necklaces, or similarpieces of jewelry and pin up or cover long hair before performing anywork on or with the unit.

S To carry out measurements on work pieces, switch off the unit andwait until it comes to a standstill.

S Never point hand guns or applicator nozzles at yourself or otherpersons.

Less-Obvious Dangers

WARNING: An operator or service technician working with theunit should be aware of less-obvious dangers that often cannotbe completely minimized at production sites:

S Exposed surfaces of the unit which cannot be practicallysafeguarded. They may be hot and take time to cool after the unithas been operating.

S The possibility that electrical potentials may remain in the unit afterthe unit was de-energized

S Hot melt material and vapors

S Hydraulically or pneumatically operated parts of the unit

S Parts winding something up or down which are not covered

Action in the Event of Unit Malfunction

If the unit malfunctions, switch it off immediately.

S Turn the circuit breaker or main power switch OFF.

S Have the unit repaired by qualified personnel only.

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Danger of Burns

Contact with hot melt materials or hot areas of the unit may produce asevere skin burn.

WARNING: Hot! Risk of burns. Wear heat-protective clothing,safety goggles, and/or heat-protective gloves depending on thesymbols shown.

S Be extremely careful when using hot melt material. Even solidifiedmaterial may still be very hot.

S Always wear protective clothing which safely covers all exposed partsof the body.

In case of burns:

S Immediately cool affected skin areas using cold, clean water.

S Do not forcefully remove hot melt material from the skin.

S Immediately seek medical attention.

Allow only qualified personnel to perform the procedures described in thisdocument. When performing such tasks, wear protective clothing, andequipment.

WARNING: Even when the circuit breaker or main powerswitch is OFF, the unit is still electrically energized. Completethe following steps prior to maintenance or repair:

S Disconnect, lock out, and tag external power supply.

S To ensure the external power supply is disconnected, attempt tooperate the unit. If the unit does not energize, proceed withmaintenance or repair work.

S If the unit energizes, repeat the disconnect, lock out, and tagprocedure. Re-test the unit.

Maintenance/Repair

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S Follow the specific instructions provided in this manual to relieve thesystem pressure in the entire unit.

S Secure pneumatically- or hydraulically-operated equipment againstuncontrolled movement.

S Only use parts which do not compromise the safety of the unit. Onlyuse genuine Nordson parts.

S Always use tools with insulated handles when removing or installingcomponents.

NOTE: Always refer to the material manufacturer’s Material Safety DataSheet (MSDS) or material information sheet before working with any ma-terial.

WARNING: Never clean any aluminum part or flush anysystem using halogenated hydrocarbon fluids. Examples ofcommon halogenated hydrocarbons are: dichloromethylene,1,1,1-trichloroethylene, and perchloroethylene. Halogenatedhydrocarbons may react violently with aluminum parts.

WARNING: Fire, open flame, and smoking are prohibited whencleaning fluids are used. Observe all explosion preventionregulations. Cleaning fluids may only be heated usingtemperature-controlled and explosion-protected heaters.

S Never use an open flame to clean the unit or components of the unit.

S Use only cleaning fluids designed or intended to be used with the hotmelt material being used in the unit. Never use paint fluids under anycircumstances.

S Note the flash point of the cleaning fluid used. Only use a controlledheating method to heat fluids.

S Ensure sufficient room ventilation to draw off generated vapors.Avoid prolonged breathing of vapors.

Cleaning

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NOTE: Always refer to the material manufacturer’s Material Safety DataSheet (MSDS) or material information sheet before working with any hotmelt material.

S Ensure the work area is adequately ventilated.

S Do not exceed recommended processing temperatures. Doing socreates a danger to personnel due to decomposition of the material.

Dispose of equipment and materials used in operation and cleaningaccording to local regulations.

NOTE: Always refer to the material manufacturer’s Material Safety DataSheet (MSDS) or material information sheet before working with any hotmelt material.

WARNING: Exercise extreme caution and always provideadequate ventilation when using reactive materials.

WARNING: Only use PUR material in units that are designedto process such material. Using PUR material in units thatcannot process them can cause damage to the unit andpremature reaction of the hot melt material.

WARNING: PUR material contains isocyanate ingredientswhich will irritate skin, mucous membranes of eyes andrespiratory passages.

WARNING: Persons with existing asthmatic conditions mayexperience difficulty in breathing.

Thermoplastic Hot MeltMaterial

Polyurethane Reactive(PUR) Hot Melt Material

Equipment and MaterialDisposal

Polyurethane Reactive(PUR) Hot Melt Material

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Because isocyanate ingredients are found in various concentrations inreactive materials produced by different manufacturers, it is imperativethat the material manufacturer’s MSDS or material information sheet beconsulted before using reactive material. Pay particular attention to thediscussion of material toxicity, health effects, and reactivity condition.

There are certain universal safety guidelines that should be followedwhen using any reactive material:

S Recommended processing temperatures must not be exceeded.

S When handling and using reactive material, always wear thermallyprotective gloves and long-sleeved clothing.

S Wear chemical goggles to reduce the potential of eye contact.

S Have eye washes available and provide a cold water source for burntreatment.

S The regular use of barrier cream for hands and face is recommendedfor skin protection.

S Do not eat, drink, smoke, or store food in working areas where PURmaterial is being processed.

S Wash hands thoroughly after working with reactive material.

S Remove hot melt material vapors using suitable extraction ventilationequipment.

S Use appropriate respiratory equipment where there is the danger ofinhaling isocyanate vapors or other ingredients contained in the PURmaterial in concentrations exceeding permissible limit values.

S In case of very high concentrations of harmful substances, or if youare unsure of the environmental conditions, respiratory protectiveequipment (operating independent of the surrounding air) must beused.

S Do not operate the unit with PUR materials if you are unsure that alladequate safety measures have been taken.

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Nordson Series H-400 guns are used to apply thermoplastic hot meltadhesive to a product. Polyurethane-reactive (PUR) andhigh-temperature polyamide adhesives can negatively affect gunperformance and durability. The H-400 gun product line includes achoice of valve seat, single- and multi-module configurations, and a wideselection of nozzles. H-400 guns provide continuous operation andconsistent adhesive output, minimizing delays.

H-400 guns use resistance temperature detectors (RTDs) for precisetemperature sensing and control of gun temperature to within±0.5 °C (1.0 °F) of a setpoint temperature. Figure 1 shows a typicalSeries H-400 gun.

4296008A

1

3

4

9

8

7

6

2

5

Fig. 1 H-400 Gun Components

1. Solenoid valve2. Pipe nipple3. Mounting clamp4. Mounting bar5. Insulator

6. Cordset7. Gun manifold8. Gun-to-hose fitting9. Gun module

2. Description

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Item Specification Note

Operating temperature 232 _C (450 _F) maximum

Operating hydraulic pressure 90 bar (1,300 psi) maximum

Operating air pressure 3.4--5.5 bar (50--80 psi) A

Operating speed exceeds 4,500 cycles per minute

Nozzles Series 237 XXX, 238 XXX, right-angle, and Saturn nozzles B

Electrical service 240 Vac, 50/60 Hz200 Vac, 50/60 Hz (for low-voltage areas)

Approvals and certifications Underwriter’s Laboratories (UL), TÜV Rheinland of North America,Communité Européen (CE)

NOTE A: Use dry, regulated, unlubricated air for consistent gun operation.B: Series H-400 gun modules use the same nozzles as Series H-200 gun modules.

40.4 mm

40.4 mm25.4 mm

96.5 mm

12.7 mm

114.8 mm

22.2 mm

42.2 mm

(1.59 in.)

(4.52 in.)

(1.59 in.)(1.0 in.)

(3.80 in.)

(0.50 in.) (1.66 in.)

(0.875 in.)

4296009A

83.8 mm(3.30 in.)

83 mm(3.25 in.)

Fig. 2 H-400 Gun Dimensions

Specifications

Dimensions

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Series H-400 guns are designed for use with Nordson hot melt units andhoses. This section provides guidelines and procedures for installingH-400 guns.

Exercise normal care to prevent equipment damage during unpacking.After unpacking the equipment, inspect it for any damage that may haveoccurred during shipping. Look for dents and scratches and make sureall fasteners are tight. Report any damage to your Nordsonrepresentative.

The following items are needed to install H-400 guns.

S Hot melt unit and associated equipment manuals

S Automatic gun hoses

S Mounting equipment

S Solenoid valves (one or more per gun)

S Air pressure regulator and air line tubing

S Drain pan

S Wrenches and screwdrivers

S Safety goggles, safety gloves, and long-sleeved heat-protectiveclothing

Use the following installation guidelines to obtain optimum gunperformance.

S Mount the guns so the nozzles are no more than 13 mm (0.5 in.) fromthe product.

S Protect the guns from vibration and secure them so they will notchange position during application.

S Insulate hose-to-gun joints.

3. Installation

Inspection

Items Needed

Installation Guidelines



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S Do not use extra fittings to connect the hose to the gun. Nordsonoffers straight, 45_, and 90_ filtered and nonfiltered gun-to-hosefittings. Refer to Parts.

S Make sure the gun air pressure regulator is capable of providing aminimum of 3.4 bar (50 psi) to the solenoid valve.

S Use a solenoid valve that is rated above 0.5 Cv. Refer to Parts.

NOTE: Solenoid valves rated below 0.5 Cv restrict gun performanceand result in significantly higher air section failures in Nordsonproduct conformance tests.

S Use Nordson precision nozzles. Refer to Parts.

H-400 guns are equipped with a mounting clamp. Variations in mountingmay be required depending on your equipment and production line.Regardless of the mounting method used, refer to the InstallationGuidelines to obtain optimum gun performance. Use the appropriateprocedure, Standard Guns or Low-Profile Guns, for the type of guns youare installing.

Mounting the Guns

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Standard Guns

1. See Figure 3. Loosen the mounting clamp hex screw (1) andpan-head screws (2).

2. Slide a mounting bar (3) through the clamp.

NOTE: If you are adding a new gun to an existing system, orreplacing a gun, remove the hex screw and the pan-head screws fromthe mounting clamp, position the upper and lower pieces of themounting clamp on the mounting bar, then loosely screw the hexscrew and pan-head screws through both pieces of the mountingclamp.

4296010A

1 2 3

Fig. 3 H-400 Gun Installation

1. Loosening the hex screw 2. Loosening the pan-head screws 3. Installing the mounting bar

3. Finger-tighten the hex and pan-head screws.

4. Secure the mounting bar on your equipment so there will be no gunmovement.

5. Loosen the hex and pan-head screws and slide the gun to the desiredposition on the mounting bar.

6. Securely tighten the hex and pan-head screws.



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Low-Profile Guns

See Figure 4. Secure the mounting rod to the parent machine. Positionthe gun as close to the adhesive application point as the productclearance will allow.

4296011A

Fig. 4 Typical Low-Profile Gun (shown with solenoid valve installed)

Use this procedure to install a gun solenoid valve and to connect the airsupply to the valve. Use dry, regulated, unlubricated air for consistentgun operation.

CAUTION: Risk of solenoid valve failure. A solenoid valve canbe damaged if its voltage rating does not match the outputvoltage from the power supply or if it does not meethigh-temperature standards. Refer to Parts for solenoid valvevoltage ratings and a list of valves suitable for use at servicetemperatures above 85 _C (185 _F).

1. See Figure 5. Connect one end of the pipe nipple to a solenoidvalve (1).

2. Apply anti-seize lubricant to the threads of a 1/8-in. pipe nipple.

Connecting the Air Supply

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3. Connect the other end of the pipe nipple to the gun manifold air inputport (2).

NOTE: Figure 4 shows a solenoid valve installed on a low-profilegun.

4296012A

1 2

Fig. 5 Installing a Solenoid Valve

1. Connecting pipe nipple to the valve 2. Connecting the valve to the gun

4. Connect an air supply line to the solenoid valve.

5. Install an air pressure regulator and gauge in the air supply line.

6. Make sure the air supply line has a shutoff valve.

7. Connect the solenoid valve to a power supply. The power supply canbe a timer or a pattern controller. Refer to the solenoid valvemanufacturer’s instructions.

Follow this procedure to connect a hose to the gun.

CAUTION: Risk of equipment damage. Do not usenonconductive pipe compound or tape on gun and hosehydraulic connections.

1. Thread the hose swivel fitting onto the gun hose fitting until theconnection is finger tight.

Connecting the Air Supply(contd.)

Connecting the Hose



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2. See Figure 6. Use two wrenches to tighten the hose-to-gun fitting (1).Place one wrench on the hose fitting and the other on the gun fitting.

3. Plug the gun cordset into the hose plug receptacle (2).

4296013A

1 2

Fig. 6 Connecting the Hose to the Gun

1. Tightening the hose-to-gun fitting 2. Plugging in the cordset

4. Connect the hose to your hot melt unit by following the instructions inthe unit manual.

Prior to installing nozzles, flush the guns to purge them of air andshipping or installation contamination.

1. Turn on the hot melt unit and allow it to reach operating temperature.Refer to your unit manual for the startup procedure.

2. Place a drain pan under all guns.

3. Turn on the pump. Refer to your unit manual for the pump startupprocedure.

4. Follow the system startup procedure in your unit manual. Trigger theguns on by manually activating the solenoid valve and flush the gunsuntil the adhesive flowing from them is clear.

WARNING: System or material pressurized. Relieve pressure.Failure to observe this warning may result in serious injury.

5. Turn off the pump and relieve hydraulic pressure. Refer to your unitmanual.

Flushing the Guns

Series H-400 Guns18


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Follow this procedure to complete the installation process and to set upyour unit for normal operation.

1. Install nozzles on the guns:

S Install one-piece nozzles by screwing the nozzle onto the gunmodule with a gloved hand. Tighten the nozzle no more than4.5 NSm (40 in.-lb).

S Install retaining nut nozzles by placing the nozzle inside theretaining nut, then screwing the retaining nut onto to the gunmodule with a gloved hand. Tighten to no more than4.5 NSm (40 in.-lb).

2. Turn on the pump.

3. Adjust the gun air pressure and the hydraulic pressure to the desiredsettings.

S The operating gun air pressure range is 3.4--5.5 bar (50--80 psi).

S The operating hydraulic pressure range is30--90 bar (450--1,300 psi).

NOTE: These pressure ranges are appropriate for mostpackaging and product assembly applications. However, if yourapplication requires operating at a hydraulic pressure below30 bar (450 psi), you may need to adjust the gun air pressure orthe gun module. Refer to the next section, H-400 Gun OperatingRange/Adjustment.

Preparing for Operation



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42-H400-MA-01

Use these procedures to make adjustments that will allow you to operatean H-400 gun at a hydraulic pressure under 30 bar (450 psi).

To operate at a hydraulic pressure under 30 bar (450 psi), increase thegun air pressure. Refer to Table 1. This will allow you to operate at ahydraulic pressure as low as 14 bar (200 psi). If you cannot achieve gunair pressure above 3.4 bar (50 psi), go to the next procedure,Compensating for Low Gun Air Pressure.

Table 1 Increasing Gun Air Pressure to Operate at Low Hydraulic Pressure

If the gun air pressure is... The minimum hydraulicpressure is...

And the maximum hydraulicpressure is...

3.4 bar (50 psi) 30 bar (450 psi)

4.1 bar (60 psi) 20 bar (300 psi) 90 bar (1,300 psi)

greater than 4.8 bar (70 psi) 14 bar (200 psi)

4. H-400 Gun OperatingRange/Adjustment

Operating Under 30 bar(450 psi) Hydraulic Pressure

Series H-400 Guns20


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If you have insufficient gun air pressure but are required to operate at ahydraulic pressure under 30 bar (450 psi), you must reduce the gunmodule spring tension. Because this adjustment is independent of thefactory-set stroke, the gun module operating speed and life will not beaffected.

WARNING: Risk of burns. Reducing the gun module springtension also reduces the maximum hydraulic pressure at whichthe module will self-relieve or free-flow. If the maximumhydraulic pressure is exceeded, the gun module will remainopen and dispense adhesive uncontrollably.

See Figure 7. To reduce the spring tension, loosen the locking nut (2)and turn the adjusting screw (1) counterclockwise in 1/2-turn increments.Each 1/2 turn reduces the hydraulic pressure capability by 7 bar (100 psi).Refer to Table 2.

Table 2 Adjusting the Gun Module to Operate at Low Gun Air Pressure and Low Hydraulic Pressure

Adjusting Screw Position Minimum Gun AirPressure

Minimum HydraulicPressure

Maximum HydraulicPressure

Factory setting 30 bar (450 psi) 90 bar (1,300 psi)

Approximately 1/2 turncounterclockwise fromfactory setting 3.4 bar (50 psi)

33 bar (350 psi) 83 bar (1,200 psi)

Approximately 1 turncounterclockwise fromfactory setting

26 bar (250 psi) 76 bar (1,100 psi)

4293024A

1

2

Fig. 7 Gun Module Locking Nut and Adjusting Screw

1. Adjusting screw 2. Locking nut

Compensating for Low Gun AirPressure



331170DIssued 8/05

42-H400-MA-01

Follow this procedure to return a gun module to the original factorysetting.

1. Loosen the locking nut.

2. Turn the adjusting screw clockwise only until it bottoms out. Do notover-tighten the screw.

3. Turn the adjusting screw counterclockwise two revolutions. The aircap is marked to allow you to precisely reset the screw.

4. Tighten the locking nut while holding the adjusting screw in place.

This section contains operating procedures for installed H-400 guns.Make sure you have completed Flushing the Guns and Preparing forOperation in Installation before using these procedures.

Follow this procedure to start your hot melt system.

CAUTION: Risk of equipment damage. Nordson Corporationrecommends turning off the gun air supply during systemstartup to prevent unexpected pressure buildup in the moduleand gun manifold caused by the expansion of the cold adhesiveas it melts.

1. Make sure the gun air supply is turned off.

2. Turn on the hot melt unit and allow it to reach operating temperature.Refer to your unit manual for the startup procedure.

3. Turn on the gun air supply.

4. Turn on the solenoid valve power supply, enable any triggeringdevices, and start the production line.

Returning a Gun Module to theFactory Setting

5. Operation

Starting the System

Series H-400 Guns22


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To modify how adhesive is applied:

S Adjust the adhesive temperature. Refer to the adhesivemanufacturer’s data sheet.

S Adjust the nozzle distance from the product. The distance should be13 mm (0.5 in.) or less.

S Change your nozzle selection.

NOTE: Select a nozzle with an engagement length and hole size thatwill allow the gun to operate above 17 bar (250 psi). Operating belowthis pressure can result in stringing and cutoff problems in mostadhesives.

S Adjust the gun air pressure. The operating range is3.4--5.5 bar (50--80 psi).

S Adjust the hydraulic pressure. The operating range is30--90 bar (450--1,300 psi).

NOTE: These pressure ranges are appropriate for most packagingand product assembly applications. However, if your applicationrequires operating at a hydraulic pressure below 30 bar (450 psi), youmay need to adjust the gun air pressure or the gun module. Refer toH-400 Gun Operating Range/Adjustment.

Adjusting AdhesiveApplication



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Follow this procedure to shut down your hot melt system.

1. Stop the production line.



3. Turn off the unit.

WARNING: Hot! Risk of burns. Wear heat-protective clothing,safety goggles, and heat-protective gloves.


5. Manually trigger the guns until they are drained of adhesive.

6. Turn off the solenoid valve power supply.

7. Turn off the gun air supply.

8. Manually trigger the gun solenoid valves to relieve gun air pressure.

Shutting Down the System

Series H-400 Guns24


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The following troubleshooting table describes the kinds of problems youmay encounter and provides corrective actions for handling thoseproblems. When necessary, the table refers to more detailed diagnosticprocedures. Refer to your hot melt unit manual for furthertroubleshooting procedures.

Problem Possible Cause Corrective Action

1. No adhesive outputfrom gun modules

System not at operating temperature Wait for the system to reach operatingtemperature or adjust the operatingtemperature setpoints. Refer to yourunit manual.

Adhesive level too low Add adhesive. Refer to your unitmanual.

Low or no hydraulic pressure Check the hydraulic pressure. Refer tothe hydraulic system troubleshootingprocedures in your unit manual.

No input power Make sure the gun cordset connection istight and the solenoid valve powersupply is turned on.

Low or no input air pressure to solenoidvalve

Check the air pressure regulator. Referto Checking an Air Pressure Regulator.

Solenoid valve malfunctioning or powersupply to solenoid valve insufficient

Check the solenoid valve and the powersupply to the valve. Refer to themanufacturer’s instructions.

Clogged gun nozzle, module, ormanifold

Refer to Checking for a Clogged GunNozzle, Module, or Manifold.

2. Inconsistent output orcontinuous output

Gun not adjusted for low operatingpressure (under 30 bar [450 psi])

Refer to the H-400 Gun OperatingRange/Adjustment section.

3. Gun under-heats oroverheats

Failed heater Refer to Checking a Heater.

Failed RTD Refer to Checking an RTD.

6. Troubleshooting

Troubleshooting Table



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42-H400-MA-01

Use this procedure as directed by the Troubleshooting Table to check thegun air pressure regulator.

1. Set the air pressure regulator to 0.

2. Turn off the air to the regulator at the air supply source.

3. Disconnect the solenoid valve air line from the regulator.

4. Restore air pressure to the regulator.

5. Gradually turn on the regulator to verify that air is flowing through it.

S No air flows from the regulator: regulator defective. Replace theregulator.

S Air flows from the regulator: normal indication. Return the airpressure to 0 and reconnect the air line to the regulator. Return tothe Troubleshooting Table.

Use this procedure as directed by the Troubleshooting Table to check fora clogged gun nozzle, module, or manifold.

WARNING: System or material pressurized. Relieve pressure.Failure to observe this warning can result in serious injury.



3. Place a drain pan under the gun.

4. Manually trigger the gun until it is drained of adhesive.


5. Use a wrench to loosen the nozzle, then remove the nozzle by hand.

Checking an Air PressureRegulator

Checking for a Clogged GunNozzle, Module, or Manifold

Series H-400 Guns26


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6. Restore air pressure to the gun solenoid valve.


8. Trigger the gun by manually activating the solenoid valve.

S Adhesive flows from the gun module: nozzle clogged. Clean thenozzle. Refer to Cleaning Nozzles in Repair.

S No adhesive flows from the gun module: gun module may beclogged. Return the air pressure to 0 and continue to the nextstep.

WARNING: System or material pressurized. Relieve pressure.Failure to observe this warning can result in serious injury.


10. Remove the two socket-head screws that secure the gun module tothe gun manifold and remove the module.

11. Restore air pressure to the gun solenoid valve.


13. Trigger the gun by manually activating the solenoid valve.

S Adhesive flows from the gun manifold: module clogged. Replacethe module. Refer to Replacing a Gun Module in Repair.

S No adhesive flows from the gun manifold: the gun manifold isclogged or there is blockage in the hose or unit. To replace thegun manifold, refer to Replacing a Gun Manifold. Refer to yourunit manual for further hydraulic system troubleshootingprocedures.

Checking for a Clogged GunNozzle, Module, or Manifold(contd.)



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Use this procedure as directed by the Troubleshooting Table to check thegun heater.



WARNING: Disconnect equipment from the line voltage.Failure to observe this warning can result in personal injury ordeath.

2. Turn off the unit; then disconnect and lock out electrical power to theunit.





6. Unplug the gun cordset.

Checking a Heater

Series H-400 Guns28


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7. See Figure 8. Use a standard ohmmeter to check the heater circuit atthe cordset pins.

S Circuit not open: normal indication. Return to theTroubleshooting Table.

S Circuit open: loose connection between heater and cordset orfailed heater. Tighten the loose connection or replace the heateras appropriate. Refer to Replacing a Heater in Repair.

4201079

1

2

3

5

4

HEATER

HEATER

RTD

RTD

GND

5

4

2

3

1

RTD

Fig. 8 Typical Gun Cordset

Checking a Heater (contd.)



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42-H400-MA-01

Use this procedure as directed by the Troubleshooting Table to check thegun RTD.









6. Wait until the gun reaches room temperature.


8. See Figure 8. Use an ohmmeter to test the RTD resistance at thecordset pins.

S See Figure 9. Resistance reading within appropriate range shownon chart: normal indication. Return to the Troubleshooting Table.

S Resistance reading not within appropriate range shown on chart:Failed RTD. Replace the RTD. Refer to Replacing an RTD inRepair.

NOTE: This is a reference check only. The indicated guntemperature, the gun surface temperature, and the RTD actualtemperature can vary by up to 10%.

Checking an RTD

Series H-400 Guns30


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42-H400-MA-01

4207045

250

240

230

220

210

200

190

180

170

160

150

140

130

RESISTANCEIN

OHMS

250

240

230

220

210

200

190

180

170

290

280

270

260

RESISTANCEIN

OHMS

TEMPERATURE

TEMPERATURE

Fig. 9 RTD Resistance vs. RTD Temperature

Checking an RTD (contd.)



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42-H400-MA-01

Troubleshooting contains diagnostic procedures which may identify failedcomponents. This section contains procedures for cleaning nozzles andfor replacing a gun module, heater, RTD, or manifold. Refer to Parts toorder replacement parts.

Follow this procedure to clean clogged nozzles.



2. Turn off the unit.



4. Manually trigger the guns until they are drained of adhesive.


6. Turn off the solenoid valve power supply.

7. See Figure 10. Use a wrench to loosen the nozzles (1); then removethe nozzles by hand (2).

4293007A

1 2

Fig. 10 Removing a Nozzle

1. Loosening the nozzle 2. Removing the nozzle

7. Repair

Cleaning Nozzles

Series H-400 Guns32


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WARNING: Risk of personal injury or death. If heated above245 _C (475 _F), Type-R fluid can cause an explosion or fire.Do not heat Type-R fluid with an open flame or in anunregulated heating device. Use a controlled heating device,such as a small deep-fat fryer or a thermostatically controlledhot plate.

8. Place the nozzles in a container of Type-R cleaning fluid.

9. Heat the cleaning fluid above the adhesive’s melting temperature.

10. See Figure 11. Remove the nozzles from the cleaning fluid and cleanthem using a pin-type probe.

NOTE: Nordson Corporation offers a nozzle cleaning kit. Refer toParts.

4204026A

Fig. 11 Cleaning Nozzles

11. Reinstall the nozzles on the guns and restore the system to normaloperation.

Cleaning Nozzles (contd.)



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42-H400-MA-01

Use this procedure to replace a gun module.









6. Use a wrench to loosen the nozzle; then remove the nozzle by hand.

Replacing a Gun Module

Series H-400 Guns34


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7. See Figure 12. Remove the two socket-head screws that secure themodule to the gun manifold and remove the module.

4296014A

Fig. 12 Replacing a Module

8. Wipe off any adhesive on the gun manifold and check for adhesive inthe air supply ports.

9. Make sure the O-rings on the back of the gun module are properlypositioned.

10. Apply anti-seize lubricant to the gun module socket-head screws andsecure the new module to the gun manifold with the screws. Tightento 3.3 NSm (30 in.-lb).

11. Reinstall the nozzle on the new gun module and restore the system tonormal operation.

NOTE: The H-400 gun module is factory-set to operate properlybetween 3.4--5.5 bar (50--80 psi) gun air pressure and30--90 bar (450--1,300 psi) hydraulic pressure. This setting isappropriate for most packaging and product assembly applications.However, if your application requires operating at a hydraulic pressurebelow 30 bar (450 psi), refer to H-400 Gun OperatingRange/Adjustment.

Replacing a Gun Module(contd.)



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42-H400-MA-01

Follow this procedure to replace a gun heater. A gun may have one ortwo heaters.










7. Use two wrenches to disconnect the hose from the gun. Place onewrench on the gun fitting and one on the hose fitting.

8. Remove the gun manifold cover screws and move the cover awayfrom the gun.

9. Remove the terminal block and loosen the screws that secure theheater wires.

Replacing a Heater

Series H-400 Guns36


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10. Remove and discard the defective heater.

NOTE: If the heater is stuck, use a punch or similar tool to tap theheater loose from the opposite end.

11. Trim the heater wires to match the old heater wire length.

12. Strip about 6 mm (1/4 in.) of insulation from each wire.

13. See Figure 13. Insert an eyelet into each heater wire terminal blockopening; then insert the heater wires into the eyelets. If the gun hastwo heaters, two heater wires may be placed in the same eyelet.

4201081

4

1 2

31

5

Fig. 13 Gun Electrical Connections

1. Heater2. Terminal block3. Cordset

4. Ground wire5. RTD

14. Crimp the eyelets by tightening the terminal block screws. Tighten toapproximately 0.49 NSm (70 in.-oz).

15. Insert the new heater in the gun manifold.

Replacing a Heater (contd.)



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16. Position the terminal block in the gun manifold, arranging the wiringso it will not be pinched when the gun manifold cover is closed.

17. Reposition and secure the gun manifold cover.

18. Use two wrenches to reconnect the gun to the hose. Place onewrench on the gun fitting and one on the hose fitting.

19. Plug the gun’s cordset into the hose plug receptacle.

20. Restore electrical power to the unit and resume normal operation.

Follow this procedure to replace an RTD. To replace the RTD you willneed to install a new cordset.










Replacing an RTD

Series H-400 Guns38


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8. See Figure 14. Remove the gun manifold cover screws (3) and movethe cover (2) away from the gun.

9. Remove the cordset wires (5) from the terminal block or blocks.

NOTE: Don’t remove the heater wires from the terminal block orblocks.

10. Disconnect the ground wire (1).

11. Unscrew the cordset locking nut and pull the cordset (4), including theRTD (6), loose from the gun manifold cover.

4296015A

2

4

3

6

1

55

Fig. 14 Replacing an RTD (typical gun shown)

1. Ground wire2. Gun manifold cover3. Screws

4. Cordset5. Cordset wires6. RTD

Replacing an RTD (contd.)



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42-H400-MA-01

12. Insert the new cordset wires through the gun manifold cover, thewasher, and the locking nut and tighten the locking nut.

13. Insert the cordset wires in the terminal block or blocks and tighten theterminal block screws to approximately 0.49 NSm (70 in.-oz).

14. Connect the ground wire.

15. Insert the RTD in the gun manifold.

16. Position the terminal block in the gun manifold, arranging the wiringso it will not be pinched when the gun manifold cover is secured.

17. Reposition and secure the gun manifold cover.

18. Use two wrenches to reconnect the gun to the hose. Place onewrench on the gun fitting and one on the hose fitting.


20. Restore electrical power to the unit and resume normal operation.

Follow these procedures to replace a gun manifold.

Preparation





Replacing a Gun Manifold

Series H-400 Guns40


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42-H400-MA-01







8. Disconnect the solenoid valve from the air supply and power supply;then disconnect the pipe nipple from the gun manifold.

9. Remove the mounting clamp hex screw; then loosen the pan-headscrews until the gun, with the mounting clamp attached, can beremoved from the mounting bar.

Gun Disassembly

1. See Figure 15. Remove the mounting clamp (3) and insulator fromthe gun manifold.

2. Remove the two socket-head screws (1) that secure the gunmodule (2) to the gun manifold (8) and remove the module.

3. Remove the gun manifold cover screws (5) and move the cover (4)away from the gun.

4. Disconnect the ground wire (9).

5. Remove the RTD (10) and the heater or heaters (11).

NOTE: On most guns a punch can be used to loosen a stuck RTD orheater. Insert the punch at the end opposite the wires.

Replacing a Gun Manifold(contd.)



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42-H400-MA-01

6. If applicable, unscrew the cordset (6) from the gun manifold. The gunmanifold cover and cordset should now be completely disconnectedfrom the gun manifold.

7. Remove the gun-to-hose fitting and O-ring (7).

4296016A

1

2

3

8

46

5

7

1011

93

Fig. 15 H-400 Gun Disassembly (typical gun shown)

1. Socket-head screw2. Gun module3. Mounting clamp and insulator4. Gun manifold cover5. Screws6. Cordset

7. Gun-to-hose fitting and O-ring8. Gun manifold9. Ground wire10. RTD11. Heater

Gun Reassembly

1. Connect the ground wire to the new gun manifold.

2. Insert the RTD in the gun manifold.

3. Insert the heater or heaters in the gun manifold.

Series H-400 Guns42


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Gun Reassembly (contd.)

4. Apply anti-seize lubricant to the gun-to-hose fitting threads andreinstall the fitting and the O-ring.

CAUTION: Risk of equipment damage. When reinstalling thegun manifold cover, do not pinch the wires between the coverand the gun manifold.

5. Position the gun manifold cover and secure it with the cover screws.

CAUTION: Do not overtighten the gun module socket-headscrews. Overtightening can strip the threads.

6. Apply anti-seize lubricant to the gun module socket-head screws andsecure the new module to the gun manifold with the screws. Tightento 3.3 NSm (30 in.-lb).

7. Loosely connect the mounting clamp and insulator to the gunmanifold.

System Restoration

1. Reinstall and secure the gun on the mounting bar.

2. Apply anti-seize lubricant to the pipe nipple threads and reconnect thepipe nipple to the gun manifold; then reconnect the solenoid valve tothe air supply and triggering device.


4. Use two wrenches to secure the hose to the gun. Place one wrenchon the gun fitting and one on the hose fitting.

5. Remove the lock-out and restore electrical power to the unit; then turnthe unit on.

6. Allow the unit to reach operating temperature and turn on the pump.

7. Check for leaks at the hose-to-gun fitting. Tighten any loose fittings.

8. Flush the gun. Refer to Flushing the Guns in Installation.



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To order parts, contact the Nordson Customer Service Center or yourlocal Nordson representative. Use the following parts lists to describeand locate parts correctly.

Numbers in the Item column correspond to numbers that identify parts inillustrations following each parts list. The code NS (not shown) indicatesthat a listed part is not illustrated. A dash (—) is used when the partnumber applies to all parts in the illustration.

The six-digit number in the Part column is the Nordson Corporation partnumber. A series of dashes in this column (- - - - - -) means the partcannot be ordered separately.

The Description column gives the part name, as well as its dimensionsand other characteristics when appropriate. Indentions show therelationships between assemblies, subassemblies, and parts.

Item Part Description Quantity Note— 000 000 Assembly 1

1 000 000 S Subassembly 2 A

2 000 000 S S Part 1

S If you order the assembly, items 1 and 2 will be included.S If you order item 1, item 2 will be included.S If you order item 2, you will receive item 2 only.

The number in the Quantity column is the quantity required per unit,assembly, or subassembly. The code AR (As Required) is used if thepart number is a bulk item ordered in quantities or if the quantity perassembly depends on the product version or model.

Letters in the Note column refer to notes at the end of each parts list.Notes contain important information about usage and ordering. Specialattention should be given to notes.

8. Parts

Using the Illustrated Parts List

Series H-400 Guns44


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See Figure 16. Refer to Gun Heater Specifications for heaterspecifications.

Gun PartNumber Description

ManifoldPart

Number

HeaterPart

NumberNote

224 939 H-401, 240 Vac 274 593 938 123 —

224 940 H-402, 240 Vac, 0.88 in. center-lines, common air 714 990 810 000 —

224 941 H-402, 240 Vac, 1.5 in. center-line, common air 809 559 810 000 —


224 943 H-402, 240 Vac, 0.88 in. center-line, common air, low-profile 276 443 938 149 A, B


224 945 H-404, 240 Vac, 1.62--2.31 in. center-lines, common air 274 575 938 127 —


224 947 H-404, 240 Vac, 0.88 in. center-line, common air, low-profile 276 536 938 152 A, C



NOTE A: Requires two heaters.B: Requires one (1) each of gaskets part 174 891 and part 174 892.C: Requires one (1) each of gaskets part 174 893 and part 174 894.

4296017A4

1

2

3

Fig. 16 Typical Gun Cordset, RTD, Manifold, and Heater

1. Cordset2. RTD

3. Heater 4. Gun manifold

Guns, Manifolds, and Heaters



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Refer to Guns, Manifolds, and Heaters to determine which heater toorder for each type of gun.

Heater Part Diameter and Length Wire Lengths Watts

810 000 9.6 mm x 38.1 mm (0.38 in. x 1.50 in.) 254 mm (10 in.) 200

938 122 9.5 mm x 32.5 mm (0.375 in. x 1.28 in.) 114.3 mm (4.50 in.) 135

938 123 9.5 mm x 32.5 mm (0.375 in. x 1.28 in.) 114.3 mm (4.50 in.) 150

938 124 9.5 mm x 82.6 mm (0.375 in. x 3.25 in.) 114.3 mm (4.50 in.) 225

938 126 9.5 mm x 101.6 mm (0.375 in. x 4.00 in.) 114.3 mm (4.50 in.) 280

938 132 9.5 mm x 184.2 mm (0.375 in. x 7.25 in.) 178 mm (7.00 in.) 440

938 149 6.4 mm x 69.9 mm (0.250 in. x 2.75 in.) 63.5 mm (2.50 in.) 100

938 152 9.5 mm x 63.5 mm (0.375 in. x 2.50 in.) 76 mm (3.00 in.) 155

See Figure 16.

Part Description Note

274 783 Service kit, RTD replacement

274 783 Service kit, RTD replacement, water-wash guns

223 801 Cordset with eyelet, RTD A

276 770 Cordset with eyelet, RTD, water-wash guns B

152 127 Cordset conversion kit, RTD gun to Meltex unit B

264 829 Cordset conversion kit, Meltex gun to Nordson unit B

226 750 Cordset conversion kit, RTD gun to ITW Dynatec hose B

309 071 Cordset conversion kit, RTD gun to ITW Dynacontrol hose B

224 908 Cordset conversion kit, RTD gun to Slautterback hose B

NOTE A: Includes RTD and eyelets.B: Includes RTD. Order eyelets separately. Refer to Accessories.

Gun Heater Specifications

Gun Cordsets and RTDs

Series H-400 Guns46


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See Figure 17.

Item Part Description Quantity Note

1 326 583 Service kit, module, H-400, air-open, spring-close — A

2 238 711 Service kit, O-ring, 0.28 in. inside diameter x 0.70 in. — B

NOTE A: This kit includes two O-rings and two screws (to attach the module to the manifold).B: This kit includes 10 O-rings.

4293014A

1 2

Fig. 17 Gun Module and O-Rings

See Figures 18 through 22. The following nozzles can be used withH-400 guns.

237 XXX

Si l ifi ithEngagement

Orifice Diametermm (in.)

Single-orifice withinsert

g g

mm (in.) 0.20(0.008)

0.25(0.010)

0.31(0.012)

0.36(0.014)

0.41(0.016)

0.46(0.018)

0.51(0.020)

0.61(0.024)

1.3 (0.050) 237 208 237 210 237 212 237 214 237 216 237 218 237 220 237 622

Brass adapter, 1.9 (0.075) 237 621 237 312 237 314 237 316 237 318 237 320 237 623Brass adapter,stainless-steel insert 2.5 (0.100) 237 412 237 414 237 416 237 418 237 420 237 624

3.8 (0.150) 237 612 237 614 237 616 237 618 237 620 237 625

4301002

Fig. 18 237 XXX, Single-Orifice Nozzle with Insert, Optional Engagement

Gun Module

Nozzles



331170DIssued 8/05

42-H400-MA-01

237 XXX

Si l ifi ithEngagement


Single-orifice withinsert

g g

mm (in.) 0.31(0.012)

0.36(0.014)

0.41(0.016)

0.46(0.018)

0.53(0.021)

0.61(0.024)

0.71(0.028)

Brass adapter,stainless-steel insert 7.6 (0.300) 237 003 237 005 237 008 237 018 237 027 237 040 237 060

4301003

Fig. 19 237 XXX, Single-Orifice Nozzle with Insert, Long Engagement

238 XXX

Single orifice oneEngagement

Orifice Diameter

mm (in.)Single-orifice one

piece mm (in.) 0.31(0.012)

0.36(0.014)

0.41(0.016)

0.46(0.018)

0.51(0.020)

0.76(0.030)

0.89(0.035)

1.02(0.040)

Brass2 54 (0 100)

238 004 238 005 238 006 238 007 238 008 238 009 238 058 238 010

Stainless-steel2.54 (0.100)

238 011 238 012 238 002 238 013 238 000 238 001 238 057 238 003

4301001

Fig. 20 238 XXX, Drilled, Single-Orifice Nozzle, Fixed Engagement

Series H-400 Guns48


331170DIssued 8/05

42-H400-MA-01

238 0XXDomed Nozzles


Phosphor Bronze

(See Note A)0.20

(0.008)0.25

(0.010)0.31

(0.012)0.36

(0.014)0.41

(0.016)0.46

(0.018)0.51

(0.020)0.61

(0.024)0.76

(0.030)

Single 15_ 703 299 706 078 238 015 704 891 702 927 238 016

Single 30_ 704 542 714 977 238 017 238 018 804 520 238 019

Single 45_ 703 464 705 512 702 598 238 020 707 218 238 021 238 022

Single 60_ 706 057 238 023 238 024 238 025

Dual 15_ 238 059 238 053 238 063 238 054 130 495 238 055 238 056

Dual 20_ 238 060 238 062 715 190 114 927 238 067

Dual 30_ 804 871 703 270 238 506 704 936 114 928 805 512 238 500 238 026 238 501

Dual 45_ 238 534 238 525 238 526 238 527 238 528 238 529 238 530 238 027 238 531

Dual 60_ 238 061 709 371 238 064 238 028 238 068 238 029 238 030

Dual 0/15_ 805 397 715 462 238 031 238 032 238 033

Dual 0/45_ 119 360 804 761 132 567 238 034 715 872 238 035 238 036

Triple 30_ 238 037 238 065 238 038 238 069 238 039 238 071 238 040

Triple 45_ 238 041 238 066 238 042 238 070 238 510 238 072

Triple 60_ 238 043 807 506 238 044 708 028 238 045 238 046

Triple Radial 30_ 805 257 238 047 238 048 238 049 238 050

Quad 40_ 709 479 714 855 714 856 808 696 238 051 238 052

NOTE A: Use these nozzles with retaining nut part 152 926.

4301004

Single Dual Dual O/A

Triple Quad Triple Radial

A

A A

A BAA

120o 120o

Fig. 21 Domed Nozzles, Methods of Measuring Offsets Shown Above (A, B = angle between nozzle orifices or centerline)

Nozzles (contd.)



331170DIssued 8/05

42-H400-MA-01

Right-AngleNozzles


Nozzles

(See Note A) 0.20(0.008)

0.25(0.010)

0.31(0.012)

0.36(0.014)

0.41(0.016)

0.46(0.018)

0.51(0.020)

0.61(0.024)

0.71(0.028)

0.81(0.032)

1.02(0.040)

Single 707 867 714 847 244 518 244 519 244 520 165 774 270 853 165 775 271 022 231 149 804 832

Dual 15_ 165 776 273 384 804 047 165 777 271 938 165 778 165 779

Dual 30_ 270 698 270 699 270 700 165 780 709 786 165 781 808 792

Dual 90/60_ 165 783 710 591 809 882 165 784 165 785

Triple 19_ 142 898 165 786 165 787 806 540 808 625

Triple 22.5_ 165 788 806 199 165 789 165 790

NOTE A: Right-angle nozzles have a stainless-steel insert, stainless-steel adapter, and brass retaining nut.

5960007

Dual 90/6030oA

Triple

A

DualSingle

Fig. 22 Right-Angle Nozzles, Methods of Measuring Offsets Shown Above (A = angle between nozzle orifices or centerline)

Series H-400 Guns50


331170DIssued 8/05

42-H400-MA-01

See Figure 21. The following table provides part numbers for NordsonSaturn precision nozzles. Saturn precision nozzles have patentedcolor-coded rings that allow easy identification of nozzle orifice size.

OrificeDiameter andBottom Ring

Engagement Length and Top Ring Colormm (in.)

Bottom RingColor

mm (in.)1.3 (0.050)Purple

1.9 (0.075)Brown

2.5 (0.100)Blue

3.8 (0.150)Green

7.6 (0.300)Black

0.20 (0.008)Purple 322 008

0.25 (0.010)Blue 322 010

0.31 (0.012)Green 322 012 322 112 322 212 322 312 322 412

0.36 (0.014)Yellow 322 014 322 114 322 314 322 414

0.41 (0.016)Orange 322 016 322 116 322 216 322 416

0.46 (0.018)Red 322 018 322 118 322 318 322 418

0.51 (0.020)Beige 322 020 322 120

0.53 (0.021)Brown 322 421

0.61 (0.024)Gray 322 424

0.71 (0.028)Black 322 428

4296018A

Fig. 23 Saturn Precision Nozzle

Nozzles (contd.)



331170DIssued 8/05

42-H400-MA-01

A solenoid valve can be damaged if its voltage rating does not match theinput voltage from the power supply. Make sure the ratings match. Inaddition, make sure the solenoid valve meets high-temperaturespecifications. Table 3 lists solenoid valves suitable for use at servicetemperatures above 85 _C (185 _F). Table 4 provides data on theperformance of solenoid valves as tested in Nordson labs. Table 5 listssome important solenoid valve accessories.

Table 3 Solenoid Valves

Type ofSolenoidValve

PartNumber Description Cv Watts Amps Note

ISI/Nordson 125 343 24 Vdc, 1/8 NPT, quick-disconnect (QD), piloted 0.5 2.9 0.12

125 346 120 Vac, 1/8 NPT, QD, piloted 0.5 3.1 0.03

125 344 24 Vdc, 1/4 NPT, QD, piloted 1.2 2.9 0.12



3-Way 901 138 24 Vdc, 1/8 NPT, QD, direct 0.18 6 0.25 A

901 081 Dual ac/dc, 1/8 NPT, 1/2 in. NPS conduit, direct 0.18 6 0.25 A, B

901 130 24 Vdc, 1/8 NPT, 18 AWG, direct 0.18 6 0.25 A

810 283 24 Vdc, 1/4 NPT, QD, direct 0.5 24 1

816 373 Dual ac/dc, 1/4 NPT, QD, direct 0.5 24 1 B

901 092 24 Vdc, 1/4 NPT, 18 AWG, direct 0.5 24 1

901 149 240 Vac, 50/60 Hz, 1/4 NPT, QD, direct 0.5 6.5 1

901 155 24 Vdc, 1/4 NPT, QD, direct 0.5 8.5 0.35

901 173 24 Vdc, 1/4 NPT, QD, water-wash 0.5 24 1

4-Way 303 010 24 Vdc, 1/4 NPT, QD with light (LED), piloted 0.88 5.4 0.23 C

303 012 24 Vdc, 1/4 NPT, QD, piloted 0.88 5.4 0.23 C

303 013 24 Vdc, 1/4 NPT, QD with light, water-wash,piloted

0.88 5.4 0.23 C

303 014 120 Vac, 1/4 NPT, QD, piloted 0.88 2.9 0.39 C

303 015 24 Vdc, 1/4 NPT, QD, piloted 1.33 8.5 0.35 C

303 016 24 Vdc, 1/4 NPT, QD with light, piloted 1.33 8.5 0.35 C

NOTE A: Solenoid valves with less than 0.5 Cv restrict gun performance and result in significantly higher airsection failures in Nordson product conformance tests.

B: This valve is 24 Vdc, 15/6 W when used at 115 V.C: A 4-way valve may be plugged for use as a high-speed 3-way valve. Refer to Table 5, Solenoid Valve

Accessories.

Solenoid Valves

Series H-400 Guns52


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Table 4 Solenoid Valve Performance

Description Voltage Cv Minimum On (ms)Full StrokeA

Minimum Off (ms)Full StrokeA

ISI/Nordson 24 Vdc 1.2 Not Tested Not Tested

3-Way Valves 24 Vdc 0.18 11 23




NOTE A: High-performance valves will produce beads of 4 milliseconds (ms) on and 10 ms off. Patternrepeatability may be a problem due to module-to-module variance.

Solenoid Valves (contd.)



331170DIssued 8/05

42-H400-MA-01

Many solenoid valves are shipped with air mufflers that are used toreduce solenoid valve exhaust noise. If desired, you can use silencers.which provide extended service life, instead of air mufflers. Nordson alsooffers a quick-disconnect fitting that allows easy removal of a solenoidvalve and installation kits that allow you to use a 4-way valve as ahigh-speed 3-way valve. Use Table 5 to order air mufflers, silencers,quick-disconnect fittings, or installation kits. See Figure 24.

Table 5 Solenoid Valve Accessories


1 241 040 Muffler, air, 1/8 NPT —

2 231 266 Silencer, 1/8 NPT x 2.31 in. long —

3 231 262 Kit, quick-disconnect fitting, 1/4 NPT —

NS 231 260 Installation kit, 800 Series solenoid valve — A

NS 231 261 Installation kit, 400 Series solenoid valve — A

NOTE A: Use this installation kit to plug a 4-way solenoid valve for use as a high-speed 3-way valve.NS: Not Shown

4296019A

213

Fig. 24 Air Muffler, Silencer, and Quick-Disconnect Fitting

Series H-400 Guns54


331170DIssued 8/05

42-H400-MA-01

See Figure 25. The following gun-to-hose fittings can be installedbetween the gun and hose to ease hose routing and to help preventbending or pinching of the hose. Nonheated inline filter fittings trapparticles that can clog nozzles. These filtered fittings are designed foruse with low-viscosity (under 10,000 cps), packaging-grade adhesives.Both types of fittings are available in straight, 45_, and 90_configurations. Replacement filter elements come in four mesh sizes.


1 274 179 45_ hose fitting 1

2 274 180 90_ hose fitting 1

3 972 657 Straight hose fitting 1

4 274 989 45_ filter, 0.28 mm (0.011 in.), 50 mesh 1

4 274 990 45_ filter, 0.15 mm (0.006 in.), 100 mesh 1

4 274 991 45_ filter, 0.08 mm (0.003 in.), 200 mesh 1

5 274 287 90_ filter, 0.28 mm (0.011 in.), 50 mesh 1

5 274 288 90_ filter, 0.15 mm (0.006 in.), 100 mesh 1

5 274 289 90_ filter, 0.08 mm (0.003 in.), 200 mesh 1

6 274 290 Straight filter, 0.28 mm (0.011 in.), 50 mesh 1



NS 805 138 Filter element, 0.71 mm (0.028 in.), 24 mesh 1




NS 945 032 O-ring, Viton, 3/8 in. tube 1 A

NOTE A: This item is the replacement O-ring for all fittings.NS: Not Shown

4293012A

1 2 3 4 5 6

Fig. 25 Gun-to-Hose Fittings

Gun-to-Hose Fittings



331170DIssued 8/05

42-H400-MA-01

Part Description Note

901 915 Nozzle cleaning kit

132 426 Hose/gun diagnostic device with cable assembly

272 393 Blank body, module

939 994 Connector assembly (terminal block), plastic, 1-station



226 769 Eyelets for guns and hoses (package of 25) A

900 344 Anti-seize lubricant, 8-oz can

NOTE A: Eyelets are included with a replacement cordset, part 223 801. Refer to Gun Cordsets and RTDs.

Accessories

Series H-400 Guns56


331170DIssued 8/05

42-H400-MA-01

series h-400 guns - nordsonemanuals.nordson.com/adhesives/english_manuals/331170.pdf · series...

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