Nordson Pro-Flo II User manual

Pro-FlorII Hi-Flo
Extrude Gun
Customer Product Manual
Part 106696A
NORDSON CORPORATION DAMHERST, OHIO DUSA

E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
Nordson Corporation welcomes requests for information, comments and inquiries about its products.
Address all correspondence to
Nordson Corporation
555 Jackson Street
Amherst, OH 44001
Notice
This is a Nordson Corporation publication which is protected by copyright. Original copyright date 1998. 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
100 Plus, Blue Box, ChromaFlex, CleanSleeve, CleanSpray, Control Coat, Cross-Cut, Easy Coat, Econo-Coat,
Excel 2000, Flow Sentry, Isocoil, Isocore, Iso-Flo, Nordson, the Nordson logo, PRX, Pro-Flo, RBX, Ready-Coat,
Rhino, Select Coat, Select Cure, Shur-Lok, Smart Spray, System Sentry, Thread Coat, Tribomatic, and Versa-Spray
are registered trademarks of Nordson Corporation.
CPX, CanWorks, Excel 2000, PowderGrid, Pulse Spray, SCF, Versa-Coat, Versa Screen, Package of Values, and
Swirl Coat are trademarks of Nordson Corporation.
Viton is a registered trademark of E.I. DuPont de Nemours and Company.
Never Seez is a registered trademark of Bostik Corporation.
All other trademarks are the property of their respective owners.

Table of Contents i
E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
Table of Contents
1. Safety 1.....................................................
Safety Symbols 1...........................................
Qualified Personnel 3.......................................
Intended Use 3.............................................
Installation 3...............................................
Operation 5................................................
Less-Obvious Dangers 7....................................
Action in the Event of a System or Component Malfunction 7.....
Maintenance and Repair 7...................................
Material and Solvent Precautions 9...........................
2. Disposal 12..................................................
3. Description 13................................................
Additional Components 15...................................
Theory of Operation 15......................................
4. Installation 16................................................
Robot Interface Requirements 16.............................
Inspection 16...............................................
Installation 16..............................................
Gun Mounting 17.........................................
Cable Connections 19....................................
Supply Air Connection 22.................................
Material Supply Connections 22............................
Nozzles 22..............................................
Gun Purging 23..........................................
5. Operation 23.................................................
Introduction 23.............................................
Startup/Shutdown 23........................................
Bead Size 23...............................................
Gun Purging 23............................................

Table of Contents
ii
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
6. Maintenance 24...............................................
7. Troubleshooting 25............................................
Troubleshooting Chart 26....................................
8. Repair 28....................................................
Tools and Supplies Required 28..............................
Clearing a Blocked Nozzle 28................................
Clearing a Blocked Material Supply Hose 29...................
Removing the Gun from the Robot 29.........................
Removing the Trimset Valve 30...............................
Removing the Servo Valve 32................................
Removing the Piston Assembly 33............................
Installing the Piston Assembly 35.............................
Checking the Armature Clearance 37.........................
Adjusting the Armature Clearance 38..........................
Installing the Servo Valve 38.................................
Installing the Trimset Valve 39................................
Checking the Continuity of the Cordset 43.....................
Installing the Gun on the Robot 44............................
9. Parts 45.....................................................
Using the Illustrated Parts List 45.............................
Pro-Flo II Hi-Flo Extrude Basic and Temperature Conditioning
Manifold Gun 46............................................
Pro-Flo II Hi-Flo Extrude 120 V and 240 V Heated Guns 50......
10. Specifications 52..............................................
Dimensions 52.............................................
Weight 52.................................................
Air Pressure 52.............................................
Fluid Pressure Rating, Static 52..............................
Maximum Operating Temperature of Material 52................
Material Viscosity Range 52..................................
Flow Range 52.............................................

Pro-Flo
r
II Hi-Flo Extrude Gun 1
E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
Pro-FlorII Hi-Flo Extrude Gun
This section contains general safety instructions for using your Nordson
equipment. Task- and equipment-specific warnings are included in other
sections of this manual where appropriate. Note all warnings and follow
all instructions carefully. Failure to do so may result in personal injury,
death, or property damage.
To use this equipment safely,
Sread and become familiar with the general safety instructions
provided in this section of the manual before installing, operating,
maintaining, or repairing this equipment.
Sread and carefully follow the instructions given throughout this manual
for performing specific tasks and working with specific equipment.
Sstore this manual within easy reach of personnel installing, operating,
maintaining, or repairing this equipment.
Sfollow all applicable safety procedures required by your company,
industry standards, and government or other regulatory agencies.
Sobtain and read Material Safety Data Sheets (MSDS) for all materials
used. Contact your material supplier for this information.
Become familiar with the safety symbols presented in this section. These
symbols will alert you to safety hazards and conditions that may result in
personal injury, death, or property and equipment damage.
WARNING: Failure to observe this warning may result in
personal injury, death, or equipment damage.
1. Safety
Safety Symbols

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E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
WARNING: Risk of electrical shock. Failure to observe this
warning may result in personal injury, death, or equipment
damage.
WARNING: Disconnect equipment from line voltage. Failure to
observe this warning may result in personal injury, death, or
equipment damage.
WARNING: Risk of explosion or fire. Fire, open flames, and
smoking prohibited.
WARNING: Wear protective clothing, safety goggles, and
approved respiratory protection. Failure to observe may result
in serious injury.
WARNING: Hot! Risk of burns. Wear heat-protective clothing,
safety goggles with side shields and/or heat-protective gloves
depending on the symbol shown.
WARNING: System or material pressurized. Relieve pressure.
Failure to observe this warning may result in serious injury or
death.
WARNING: Injection hazard. Do not point this device at
yourself or other personnel. Failure to observe this warning
may result in serious injury or death.
CAUTION: Failure to observe may result in equipment
damage.
CAUTION: Hot surface. Failure to observe may result in
burns.
Safety Symbols (contd)

Pro-Flo
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II Hi-Flo Extrude Gun 3
E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
“Qualified personnel” is defined here as individuals who thoroughly
understand the equipment and its safe operation, maintenance, and
repair. Qualified personnel are physically capable of performing the
required tasks, familiar with all relevant safety rules and regulations, and
have been trained to safely install, operate, maintain, and repair the
equipment. It is the responsibility of the company operating the
equipment to see that its personnel meet these requirements.
WARNING: Use of this equipment in ways other than
described in this manual may result in personal injury, death, or
property and equipment damage. Use this equipment only as
described in this manual.
Nordson Corporation cannot be responsible for injuries or damages
resulting from nonstandard, unintended applications of its equipment.
This equipment is designed and intended only for the purpose described
in this manual. Uses not described in this manual are considered
unintended uses and may result in serious personal injury, death, or
property damage. Unintended uses may result from taking the following
actions:
Smaking changes to equipment that have not been recommended or
described in this manual or using parts that are not genuine Nordson
replacement parts
Sfailing to make sure that auxiliary equipment complies with approval
agency requirements, local codes, and all applicable safety standards
Susing materials or auxiliary equipment that are inappropriate or
incompatible with your Nordson equipment
Sallowing unqualified personnel to perform any task
Read the installation section of all system component manuals before
installing your equipment. A thorough understanding of system
components and their requirements will help you to install the system
safely and efficiently.
SAllow only qualified personnel to install Nordson and auxiliary
equipment.
SUse only approved equipment. Using unapproved equipment in an
approved system may void agency approvals.
Qualified Personnel
Intended Use
Installation

Pro-Flo
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II Hi-Flo Extrude Gun
4
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
SMake sure all equipment is rated and approved for the environment in
which you are using it.
SFollow all instructions for installing components and accessories.
SInstall all electrical, pneumatic, gas, and hydraulic connections to
local code.
SInstall locking, manual shutoff valves in the air supply lines to the
system. This allows you to relieve air pressure and lock out the
pneumatic system before undertaking maintenance and repairs.
SInstall a locking disconnect switch or breaker in the service line ahead
of any electrical equipment.
SUse only electrical wire of sufficient gauge and insulation to handle
the rated current demand. All wiring must meet all applicable codes.
SGround (and fuse, if necessary) all electrically conductive equipment
within 10 feet (3 meters) of the spray area or according to its rated
current consumption. (See the ID plate on your equipment.)
Ungrounded conductive equipment can store a static charge which
could ignite a fire or cause an explosion if a hot spark is discharged.
SRoute electrical wiring, cables, hoses, and air supply tubing along a
protected path. Make sure they will not be damaged. Do not bend
cables or hoses around a radius of less than 6 in. (152 mm).
SUse only designated lifting points or lugs to lift and move heavy
equipment. Always balance and block loads when lifting to prevent
shifting. Lifting devices must be inspected, certified, and rated for a
greater weight than the equipment being lifted.
SDo not use unapproved fluid hoses. Solvents may cause them to
deteriorate rapidly and allow flammable liquids or pressurized
material to escape.
SProtect components from damage, wear, and harsh environmental
conditions.
SAllow ample room for maintenance, material supply container drop-off
and loading, panel accessibility, and cover removal.
SProtect equipment with safety devices as specified by applicable
safety regulations.
SIf safety devices must be removed for installation, install them
immediately after the work is completed and check them for proper
functioning.
Installation (contd)

Pro-Flo
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II Hi-Flo Extrude Gun 5
E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
Only qualified personnel, physically capable of operating the equipment
and with no impairments to their judgement or reaction times, are
permitted to operate this equipment.
Read all component manuals before operating your Nordson equipment.
A thorough understanding of components and their operation will help
you operate the system safely and efficiently.
SBefore starting this equipment, check all safety interlocks,
fire-detection systems, and protective devices such as panels and
covers. Make sure all devices are fully functional. Do not operate the
system if these devices are not working properly. Do not deactivate
or bypass automatic safety interlocks, locked-out electrical
disconnects, or pneumatic valves.
SNever operate equipment with a known malfunction or leak.
SDo not attempt to operate electrical equipment if standing water is
present.
SKnow where EMERGENCY STOP buttons, safety shutoff
components, and fire extinguisher are located. Make sure they work.
If a component malfunctions, shut down and lock out the equipment
immediately.
SKnow the pinch points, temperatures, pressures, and dispense
material composition for all equipment that you are working with.
Recognize potential hazards associated with these and exercise
appropriate caution.
SUse this equipment only in the environments for which it is rated. Do
not operate this equipment in humid, flammable, or explosive
environments unless it has been rated for safe operation in these
environments.
SBefore operating, make sure all equipment, objects being sprayed,
and fluid containers are connected to a true earth ground.
SDo not remove guards while unit is in operation. Failure to observe
may cause personal injury from moving mechanical parts under the
guards.
Operation

Pro-Flo
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6
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
SNever touch exposed electrical connections or equipment while the
power is ON.
SIf you notice electrical arcing in a spray area, shut down the system
immediately. An arc can cause a fire or explosion.
SDo not operate the equipment at pressures higher than the rated
maximum working pressure of any component in the system.
SKeep parts of the body or loose clothing away from moving
equipment or parts. Remove jewelry and cover or tie back long hair.
SShut off moving equipment before taking measurements or inspecting
workpieces.
SWear National Institute of Occupational Safety and Health (NIOSH)
approved respirators while operating spray equipment and when
performing maintenance and cleaning tasks.
SWear gloves, eye protection, and protective clothing to protect your
skin when operating equipment.
SIf your skin has been exposed to dispense materials or solvents wash
frequently with soap and water, especially before eating or drinking.
Do not use solvents to remove coating materials from your skin.
SDo not use high-pressure compressed air to blow dust or powder off
your skin or clothes. High-pressure compressed air can be injected
under the skin and cause serious injury or death. Treat all
high-pressure fittings and hoses as if they could leak and cause
injury.
SNever point handguns or applicator nozzles at yourself or other
persons.
SDo not smoke in the spray area. A lit cigarette could ignite a fire or
cause an explosion.
SKeep paint pumps, pressure pots, and containers of flammable
materials far enough away from spray booths to prevent their
inclusion in a booth fire.
SMake sure the liquid in the heater is circulated to the external circuit
when the heater is operating.
SDo not use fluids that will corrode the equipment.
Operation (contd)

Pro-Flo
r
II Hi-Flo Extrude Gun 7
E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
Operators should also be aware of less-obvious dangers in the workplace
that often cannot be completely eliminated:
Sexposed surfaces on the equipment which may be hot or have sharp
edges and cannot be practically safeguarded
Sungrounded conductive equipment which may continue to store an
electrostatic charge after the equipment has been shut off
Svapors and materials which may cause allergic reactions or other
health problems
Sautomatic hydraulic, pneumatic, or mechanical equipment or parts
that may move without warning
Sunguarded, moving mechanical assemblies
Do not operate a system that contains malfunctioning components. If a
component malfunctions, turn the system OFF immediately.
SDisconnect and lock out electrical power. Close and lock out hydraulic
and pneumatic shutoff valves and relieve pressures.
SAllow only qualified personnel to make repairs.
Allow only qualified personnel to perform maintenance, troubleshooting,
and repair tasks.
SAlways wear appropriate protective clothing and use safety devices
when working on this equipment.
SFollow the recommended maintenance procedures in your equipment
manuals.
SDo not service or adjust any equipment unless another person trained
in first aid and CPR is present.
SUse only genuine Nordson replacement parts. Using unapproved
parts or making unapproved modifications to equipment may void
agency approvals and create safety hazards.
Less-Obvious Dangers
Action in the Event of a
System or Component
Malfunction
Maintenance and Repair

Pro-Flo
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II Hi-Flo Extrude Gun
8
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
SRefer to MSDS before using solvents to clean this equipment. The
MSDS will provide use, storage, and disposal information about the
solvent. Read this information carefully and follow all instructions.
WARNING: Note the flash point of the cleaning solvent used.
Only use controlled methods and equipment, such as
temperature-controlled or explosion-protected heaters, to heat
cleaning solvent. Observe explosion-prevention regulations
and follow applicable safety instructions.
SNever use an open flame to clean the unit or components of the unit.
SDo not store flammable materials in the spray area or room. Keep
paint pumps, pressure pots, and containers of flammable materials
far enough away from spray booths to prevent their inclusion in a
booth fire. If a fire or explosion occurs, flammable materials in the
area will increase the chances and the extent of personal injuries and
property damage.
SMake sure that the room where you are working is sufficiently
ventilated. Avoid breathing vapors over prolonged periods of time.
SCheck interlock systems periodically to ensure their effectiveness.
SCheck all ground connections periodically with a megohm meter.
Resistance to ground must not exceed one megohm. If sparks or
arcing occur, shut down the system immediately.
SMake sure the spray area floor is conductive to ground and that the
operator’s platform is grounded.
SConnect all disconnected equipment ground cables and wires after
servicing the equipment. Ground conductive equipment.
SDisconnect, lock out, and tag electrical power at a disconnect or
breaker in the service line ahead of electrical equipment before
servicing.
WARNING: Service lines connected to panel disconnect
switches may still be energized unless they are disconnected.
Make sure the power is off before servicing. Wait five minutes
for the capacitors to discharge after shutting off the electrical
power.
SIf a “power on” test is required, perform the test carefully and then
shut off and lock out power as soon as the test is over.
Maintenance and Repair (contd)

Pro-Flo
r
II Hi-Flo Extrude Gun 9
E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
SNever troubleshoot a power supply without first disconnecting all
external power supplies and discharging the high-voltage capacitors
with an insulated screwdriver.
SDo not attempt to service electrical equipment if there is standing
water present. Do not service electrical equipment in a high-humidity
environment.
SUse tools with insulated handles when working with electrical
equipment.
SKeep high-voltage connection points clean and protected with
dielectric grease or oil.
SRelieve air and fluid pressures before servicing equipment. Follow the
specific instructions in this manual.
SDo not attempt to service a moving piece of equipment. Shut off the
equipment and lock out power. Secure the equipment to prevent
uncontrolled movement.
SIf you must disassemble a spring-loaded component, carefully
preload the spring first if it is possible to do so.
WARNING: Hot! Risk of burns. Wear heat-protective clothing,
safety goggles with side shields and/or heat-protective gloves.
Heated materials may cause severe burns on contact. Remember that
some materials, even solid materials, may retain heat for some time. If
you are burned by a heated material, immediately cool the affected skin
with lots of cool, clean water. Do not try to remove hot, melted material
from the skin. Seek immediate medical attention.
High-pressure fluids, unless they are safely contained, are extremely
hazardous. A jet of high-pressure fluid can act like a knife or needle,
penetrate skin and muscle, and inject itself into your body. Injected fluids
can cause toxic poisoning.
Material and Solvent
Precautions

Pro-Flo
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II Hi-Flo Extrude Gun
10
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
Do not treat an injection injury as minor. Seek medical care immediately.
Inform the medical staff at the hospital that you have an injection injury
and identify the fluid that was injected. If possible, give the doctor copies
of the MSDS for the injected fluid and for any additives, such as solvents,
that are in the injected fluid.
Nordson recommends that you carry a National Safety Equipment
Manufacturers Association (NSEMA) wallet card to give to emergency
medical staff in the event of an injection injury. These cards are supplied
with the equipment. Additional cards are available free from Nordson
Corporation.
WARNING: Injection hazard. Do not go near a known leak in a
hose or fitting, and stay clear of all dispensing device nozzles or
orifices. Do not point a dispensing device at yourself or other
personnel. The high-pressure fluid stream can penetrate skin
and inject fluid into the body causing serious injury or death.
SAlways handle fluid dispensing devices carefully. Do not point the
nozzle of a pressurized device at yourself or other personnel.
SNever place hands, fingers, or other parts of your body directly over a
nozzle or near a leak in a high-pressure system.
SNever “back-flush” the nozzles. Blocking a nozzle causes the
high-pressure fluid to change direction. An injection injury may
result.
SAlways relieve system pressure before servicing equipment. Trigger
all dispensing devices and bleed off system pressure.
Halogenated hydrocarbon solvents can cause an explosion when used
with aluminum components in a pressurized fluid pumping system
(pumps, heaters, filters, valves, spray guns, and tanks). The explosion
could cause serious bodily injury, death, or substantial property damage.
No available stabilizers will prevent this violent reaction from happening.
WARNING: Never use halogenated hydrocarbon solvents to
clean aluminum parts or to flush any system. Cleaning agents,
coatings and paints, or adhesives may contain halogenated
hydrocarbon solvents. Obtain and read MSDS for each
material and solvent being used.
SUse nonhalogenated solvents.
Material and Solvent
Precautions (contd)

Pro-Flo
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E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
SContact your solvent supplier to determine whether your existing
materials and solvents contain halogenated hydrocarbons or to obtain
a suitable, nonhalogenated hydrocarbon solvent for cleaning and
flushing your system.
SSee Table 1. Check the labels on your solvent containers.
Halogenated hydrocarbon solvents can be recognized if any of the
following elements are listed in the name of the product or or as an
ingredient:
Element Symbol Prefix
Flourine F “Flouro-”
Chlorine Cl “Chloro-”
Bromine Br “Bromo-”
Iodine I “Iodo-”
SPump the system empty, shut off the pumps, and relieve the system
pressure.
SDisassemble and inspect the system components. Replace any
damaged or corroded parts.
SThoroughly clean all noncorroded parts with nonhalogenated
hydrocarbon solvents before reassembling the system.
SContact your coatings, solvent, or adhesive supplier for a
nonhalogenated solvent to thoroughly flush the entire system before
operating it.
SIf you must use halogenated hydrocarbon solvents, consult your
Nordson representative about compatible Nordson components.

Pro-Flo
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II Hi-Flo Extrude Gun
12
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
Table 1 Solvents Containing Halogenated Fluids
Chlorinated Solvents Iodinated Solvents Brominated Solvents Fluorocarbon Solvents
Carbon Tetrachloride Ethyl Iodide Ethylene Dibromide Dichlorofluoromethane
Chloroform Methyl Iodide Methyl Bromide Trichlorofluoromethane
Ethylene Dichloride N-butyl Iodide Methylene Chlorobromide Freon
Methylene Chloride Propyl Iodide
1-1-1 Trichloroethane
Monochlorobenzene
Orthodichlorobenzene
Perchloroethylene
Trichloroethylene
Dispose of equipment and materials used in operation and cleaning
according to your local regulations.
Material and Solvent
Precautions (contd)
2
. Disposal

Pro-Flo
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II Hi-Flo Extrude Gun 13
E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
This section provides detailed descriptions and the theory of operation for
the Pro-Flo II Hi-Flo guns listed below:
SExtrude gun
SExtrude gun with 120 V heater
SExtrude gun with 240 V heater
SExtrude gun with temperature conditioning manifold
The Pro-Flo II Hi-Flo extrude guns are typically used in robotic
applications for precise, proportional dispensing of ambient temperature
and heated adhesives and sealants.
A gun with a heater has the added capability to heat the material supply
to maintain fluidity throughout the application process. A gun with a
temperature conditioning manifold has the added capabilities to heat or
cool the material supply to maintain precise ambient temperature control.
These guns do not operate alone. A digital Pro-Flo controller controls the
gun dispensing characteristics by using feedback from the robot
controller and other sensors. By compensating for changes in robot
speed and material delivery pressure, material application can be
precisely controlled. Thus, if system parameters such as robot paths,
bead sizes, or path lengths change, the controller will modify other
parameters to maintain uniform flow.
See Figure 1 for the main components of the basic extrude guns.
3
. Description

Pro-Flo
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II Hi-Flo Extrude Gun
14
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
2613001A
4 5
21
3 6
7
Fig. 1 Pro-Flo II Hi-Flo basic extrude gun, typical
1. Cordset
2. Pressure transducer
3. Pneumatic actuator
Note: See the system drawings included
with unit for Pro-Flo guns used in
your application.
4. Piston
5. Bonnet assembly
6. Trimset valve
7. Servo valve
3
. Description (contd.)

Pro-Flo
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E1998 Nordson Corporation
All rights reserved 106 696A
Issued 6/98
Manual 26-13
In addition to the guns, Nordson offers components necessary to connect
the guns to a delivery system. However, these components depend on
your application requirements. Contact your Nordson sales
representative for more information on the following items:
SFittings and additional accessories
SRobot interface cables
SGun control cables
SMaterial supply lines
SNozzles
See Figure 1. Flow of material is directly proportional to an analog signal
sent from the robot controller to the Pro-Flo controller. The Pro-Flo
controller sends a low current output signal to the gun’s servo valve (7).
Material is dispensed from the gun in relation to robot velocity. A
pressure transducer (2), located just before the nozzle, provides
performance feedback to the Pro-Flo controller, via the cordset (1), for
adjusting gun output due to changes in robot velocity and material
pressure delivery.
Variations in robot speed and/or material delivery pressure are
compensated for by the automatic adjustment of the gun’s trimset
valve (6). The automatic adjustment is accomplished through the use of
the Pro-Flo controller. The microprocessor controller features volume
compensation based on changes in material velocity.
The pneumatic actuator (3) on the gun receives the signal from the
controller, via the servo valve (7), and directs a flow of air from the air
inlet above the piston (4) to lower (close) the bonnet assembly (5) valve
stem against the seat in the trimset valve (6). When the pneumatic
actuator receives a signal to open the trimset valve, it directs a flow of air
below the piston, which lifts the valve stem from the seat. When this
occurs, the material enters the material inlet stream of the trimset valve
and dispenses from the material outlet.
If your gun is equipped with a heater, the temperature required by the
material is entered into the temperature controller by the operator. The
temperature controller sends an electrical signal to the heater. The
heater heats up to the required temperature and transfers that heat to the
trimset valve.
If your gun is equipped with a temperature conditioning manifold, the
temperature required by the material is entered into the temperature
controller. Coolant temperature is changed to the required material
temperature. The unit processing the coolant routes the
temperature-specific coolant to and from the gun through the inlet and
outlet lines to the manifold to maintain precise, ambient conditions.
Additional Components
Theory of Operation

Pro-Flo
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16
E1998 Nordson Corporation
All rights reserved
106 696A
Issued 6/98
Manual 26-13
WARNING: Allow only qualified personnel to perform the
following tasks. Observe and follow the safety instructions in
this document and all other related documentation.
This section provides robot interface requirements. It also provides
inspection and installation procedures for the Pro-Flo II Hi-Flo extrude
guns.
Refer to the Pro-Flo Controller manual for the proper input signals for
your application.
Inspect the following:
1. Inspect the gun for dents, scratches, corrosion, and other physical
damage.
2. Inspect all fasteners and mechanical connections for tightness.
3. If there is damage to any component, contact a Nordson
representative immediately.
WARNING: To prevent serious injury to personnel and/or
damage to equipment, ensure all power to the controller has
been shut off and locked out and that all pneumatic and
material pressures have been relieved or bled off.
WARNING: The system or material is pressurized. Relieve
pressure. Failure to observe this warning may result in serious
injury or death.
The following paragraphs provide the procedures to install a gun to a
robot arm.
4
. Installation
Robot Interface Requirements
Inspection
Installation