Nordson AD-31 Series User manual

,'4,'
Series AD-31
Extrusion Handgun
Part 107 1058
t.
Nordson"
NORDSON CORPORATION o AMHERST, OHIO o USA

Nordson Corporation welcomes requests for inlormation, comments and inquiries about its products.
Address all correspondence to
Nordson Corporation
11475 Lakefield Drive
Duluth, GA30155-1511
Notice
This is a Nordson Corporation publication which is protected by copyright. Original copyright date 1995. No part
of this document may be photocopied, reproduced, or translated to another language without the prior written
consent of Nordson Corporation. The information contained in this publication is subject to change without notice.
Trademarks
AquaGuard, Blue Box, Control Coat, Equi=Bead, FloMelt, FoamMelt, FoamMix, Helix, Hot Shot, Hot Stitch,
Meltex, MicroSet, MultiScan, Nordson, the Nordson logo, OmniScan, Porous Coat, Posi-Stop, BBX, Sure-Bond,
UniScan, UpTime, and Versa-Spray are registered trademarks of Nordson Corporation.
BetterBooksM, CF, Controlled Fibeilzation, Easy-Screen, Fibermelt, Flo-Tracker, PilntGuard, and Package of
Values are trademarks of Nordson Corporation.
olEN-01-[AD-31EX]-1 42-72
lssued 12195
@ 1995 Nordson Corporation
All dghts rsssrued

Table of Contents
Table of Gontents
Section 1
Safety
Section 2
Description
Operate Safely
Safety Symbols
Qualified Personnel
lntended Use ..
lnstallation and Electrical Connections
Operation
Less-obvious Dangers
Action in the Event of Unit Malfunction
Danger of Burns
Maintenance/Repair
Cleaning
Thermoplastic Hot Melt Material .... .
Equipment and Material Disposal
Polyurethane Reactive ('PUR") Hot Melt Material
1.
2.
3.
4.
5.
6.
.... 1-1
.... 1-2
.... 1-3
.... 1-3
7.
8.
9.
10
11
1-4
1-4
1-5
1-5
1-6
1-6
1-7
'l-8
1-8
1-8
2-1
2-2
2-2
2-3
1. lntroduction
Standard Features
Optional Features
Specifications ...
@ 1995 Nordson Corporation
All rights reserved 42-72
lssued 10/95 AoEN-01-[AD-31EX]-1

ii Table of Contents
Section 3
lnstallation lntroduction.
2. Unpacking and lnspection
3. Connecting the Handgun to the Hose .
Items Needed .. . .
Handgun to Hose Connection .....
4. ElectricalConnections
Connections for Specific Handgun Configurations . . .
Configuration A (RTD Style, Series 5000)
Items Needed .
Connecting the RTD Sensor
Connecting the Heater .....
Electrical Switch Connections (if applicable) . . . .
Configuration B (RTD-Style, Other Than Series 5000)
Items Needed
Connecting the RTD Sensor ..
Connecting the Heater
Electrical Switch Connections (if applicable) . . . .
Configuration C (Thermostat Style)
Items Needed
Connecting the Heater
Electrical Switch Connections (if applicable)
1. lntroduction
2. Preparation for First Operation ..
3. Startup.... .
4. Operation ..
5. Shutdown ..
. 3-1
. 3-1
. 3-1
3-1
3-2
3-4
3-4
3-4
3-4
3-4
3-6
3-7
3-8,
3-8
3-8
.3-13
3-1 0
3-1 0
3-11
3-11
3-11
4-1
4-1
4-2
4-3
4-4
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Section 4
Operation
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Table of Contents iii
Section 5
Maintenance lntroduction
2. Daily Maintenance
Items Needed ....
Daily Maintenance Procedure ... i..
3. Weekly Maintenance
Items Needed .l.
Nozzle Cleaning .
4. SemiannualMaintenance
Items Needed ... .
Semiannual Maintenance Procedure
1. lntroduction . .
5-1
5-2
5-2
5-2
5-2
5-2
5-3
5-5
5-5
5-5
6-1
7-1
7-1
7-1
7-2
7-4
7-4
7-4
7-6
7-6
7-7
Section 6
Troubleshooting
Section 7
Repair 1.
2.
3.
lntroduction
Replacing the RTD Sensor
Items Needed ... .
RTD Replacement
Replacing the Thermostatic Sensor
Items Needed . ...
Thermostat Replacement ......
4. Replacing the Heater Gartridge
Items Needed . ...
Heater Cartridge Replacement . . .
5. Replacing the Swivel Bearing
Items Needed ... .
Swivel Bearing Replacement
Configuration A (RTD Style, Series 5000)
Configuration B (AllOther RTD-Style Configurations) .
Configuration C (Thermostat Style)
Removing the Swivel Bearing
Reinstalling the Swivel Bearing
Making Electrical Connections
Configuration A (RTD Style, Series 5000)
Configuration B (All Other RTD-Style Configurations)
Configuration C (Thermostat Style)
. 7-9
. 7-9
7-10
7-12
7-12
7-13
7-15
. 7-17
.7-20
7:21
.. 7-21
.. 7-22
@ 1995 Nordson Corporation
All ,ights reserved 42-72
lssued 10/95 AoEN{1-[AD-31Exl-1

iv Table of Contents
Section 7
Repair (contd.) 6. Replacing the Packing Cartridge
Items Needed .... 7-23 7-23
7-23
7-29
7-29
7-29
7-31
7-31
7-31
7-34
7-34
7-37
7-39
7-39
7-40
7-42
7-44
7-44
7-45
7-46
7-46
8-1
8-1
8-2
8-6
8-10
8-14
8-18
8-1 8
8-19
8-19
8-20
7.
8.
Packing Cartridge Replacement
Adjusting the Trigger
Items Needed .. ..
Trigger Adjustment
Adjusting the Trigger's Electrical Switch
Items Needed ....
Section 8
Parts
Electrical Switch Adjustments
9. Replacing an Existing Gun
Relieving Hydraulic Pressure
Removing the Existing Handgun
Configuration A (RTD Style, Series 5000)
Configuration B (All Other RTD-Style Configurations)
Configuration C (Thermostat Style)
lnstalling the Replacement Handgun
Configuration A (RTD Style, Series 5000)
Configuration B (All Other RTD-Style Configurations) . . . . .
Configuration C (Thermostat Style)
Checking for Leaks
1. lntroduction
Using the lllustrated Parts List
AD-31 Extrusion Handgun Model K* Parts List ..
AD-31 Extrusion Handgun Models B and C* Parts List
AD-31 Extrusion Handgun Models A*, T, and TL Parts List . .
AD-31 Extrusion Handgun Models D*, L, E, and P Parts List .
2. Extrusion Nozzles . . .. .
Male Threaded Standard Engagement,
Small Ball Seat for Use with
Models A, C, D, E L, R T, and TL
Male Threaded Extended Engagement,
Small Ball Seat for Use with
Models A, C, D, E, L, P, T, and TL
Male Threaded Extended Engagement,
Large Ball Seat for Use with
Models B and K
3. Accessories
A0EN-o1-[AD-31EXl-1 42-72
lssued 10/95 o 1995 Nordson Corporation
All righls reserved

Section 1
Safety
@ 1995 Nordson Gorporation
All rights reserued 42-72
lssued 11/94 Al EN{2-[XX-SAFE]-2

1-0 Safety
AIEN-{,2-[XX-SAFE]-2 42-72
lssued 11/94 @ 1995 Nordson Corporation
All rights rsserved

Safety 1-1
Section 1
Safety
1. Operate Safely Safety instructions contained in this section and throughout this
document apply to tasks that may be performed with or on the unit.
Warnings related to specific safety concerns are included within the text
as appropriate. lt is very important that these safety instructions are
always followed. Failure to do so could result in personal injury and/or
damage to the unit or other equipment.
With this in mind, here are some basic safety recommendations:
Read and become familiar with this Safetysection prior to installing,
operating, maintaining, or repairing the unit.
Read and follow the warnings which appear within the text and are
related to specific tasks.
Store this document within easy reach of personnel operating or
maintaining the unit.
Wear personal protective equipment and clothing such as safety
goggles and gloves.
Familiarize yourself with and follow all safety instructions prescribed
by your company, general accident-prevention regulations, and
government safety regulations.
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@ 1995 Nordson Corporation
All rights reserved 42-72
lssued 11/94 AI EN{!2-[XX_SAFE]_2

1-2 Safety
2. Safety Symbols The following symbols are used to warn against dangers or possible
sources of danger. Become familiar with them! Failure to heed a
warning could lead to personal injury and/or damage to the unit or other
equipment.
WARNING: Failure to observe may result in personal injury,
death, or equipment damage.
WARNING: Risk of electrical shock. Failure to observe may
result in personal injury death, or equipment damage.
WARNING: Disconnect equipment from the line voltage.
WARNING: Hotl Risk of burns. Wear heat-protective clothing,
safety goggles, and/or heat-protective gloves depending on the
symbols shown.
WARNING: Risk of explosion or fire. Fire, open flames, and
smoking prohibited.
WARNING: System or material pressurized. Relieve pressure.
Failure to observe may result in serious burns.
CAUTION: Failure to observe may result in equipment
damage.
CAUTION: Hot surface. Failure to observe may result in
burns.
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AlEN-02-[XX-SAFE]-2 42-72
lssued'11/94 O 1995 Nordson CoDoration
All ,ights ressrued

Safety 1-3
3. Qualified Personnel "Qualified personnel" is defined here as individuals who thoroughly
understand the equipment and its safe operation, maintenance, and
repair. Qualified personnel are physically capable of performing the
required tasks, familiar with all relevant safety rules and regulations, and
have been trained to safely install, operate, maintain, and/or repair the
equipment. lt is the responsibility of the company operating the
equipment to see that its personnel meet these requirements.
The unit is designed and intended to be used only for the purpose
described in lhe Description section. Uses not in accordance with that
section or as described in this document are considered unintended uses
and not in accordance with governing regulations.
WARNING: Use of this equipment in ways other than
described in this document may result in personal injury death,
or equipment damage.
The following actions of the owner or operator of the unit are some, but
not all, examples of unintended use which would permit Nordson to claim
it is not responsible for personal injury or property ddmage arising from
such unintended use:
Unapproved modifications or changes to the unit
Failure to comply with the safety instructions
Failure to comply with instructions concerning installation, use,
operation, maintenance, or repair, or when these tasks are carried out
by unqualified personnel
Use of inappropriate or incompatible foreign materials or auxiliary
equipment
Failure to observe workplace safety rules or regulations issued by
government authorities or safety councils
4. lntended Use
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@ 1995 Nordson Corporation
All rights reserved 42-72
lssued 11/94 AI EN{2-[XX-SAFE]-2

1-4 Safety
5. lnstallation and Electrical
Connections
6. Operation
WARNING: Failure to follow the safety procedures can result in
injury or death.
All electrical, pneumatic, gas, and hydraulic connections and
installations of hot melt equipment may only be carried out by
qualified personnel. Be sure to observe installation instructions for
components and accessories.
Equipment must be properly grounded and fused according to its
rated current consumption (see lD plate).
Cables which run outside the unit must regularly be checked for wear
or damage.
Power supply wire gauge and insulation must be sufficient to handle
rated current consumption.
Cables must never be squeezed or pinched. Do not locate cables or
hoses in high traffic areas.
The unit should be operated by qualified personnel in accordance with
the instructions presented in this document.
WARNING: Failure to follow the safety procedures can result in
injury or death.
Never allow the unit to be operated by personnel under the influence
of substances which reduce their reaction times, or who are not able
to operate the equipment for physical reasons.
Prior to each start-up of the unit, check protection and warning
devices and make sure they are fully functional. Do not operate the
unit if these devices are not functioning properly.
When the removal of safety equipment is required for installation,
maintenance, or repair of the unit, it must be re-connbcted
immediately upon completion of the work.
Prior to start-up of the unit, check to make sure all safety guards and
safety equipment are in place and functioning properly.
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AIEN-02-[XX-SAFE]-2 42-72
lssued 11/94 O 1995 Nordson Corporation
All rights reserved

Safety 1-5
6. Operation (contd.) aln a humid environment, only equipment featuring a corresponding
class of protection may be operated.
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Do not operate the unit in an explosive environment
Keep parts of the body or clothing away from rotating parts. Do not
wear loose articles of clothing when operating or servicing units with
rotating parts. Take off wrist watches, rings, necklaces, or similar
pieces of jewelry and pin up or cover long hair before performing any
work on or with the unit.
To carry out measurements on work pieces, switch otf the unit and
wait until it comes to a standstill.
Never point hand guns or applicator nozzles at yourself or other
persons.
WARNING: An operator or service technician working with the
unit should be aware of less-obvious dangers that often cannot
be completely minimized at production sites:
Exposed surfaces of the unit which cannot be practically
safeguarded. They may be hot and take time to cool after the unit
has been operating.
The possibility that electrical potentials may remain in the unit after
the unit was de-energized
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Less-obvious Dangers
Action in the Event of Unit
Malfunction
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Hot melt material and vapors
Hydraulically or pneumatically operated parts of the unit
aParts winding something up or down which are not covered
lf the unit malfunctions, switch it off immediately.
. Turn the circuit breaker or main power switch OFE
o Have the unit repaired by qualified personnel only.
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@ 1995 Nordson CorpoEtion
All rights reserued 42-72
lssued 11/94 Al EN{2-[XX-SAFE]-2

1-6 Safety
Danger of Burns Contact with hot melt materials or hot areas of the unit may produce a
severe skin burn.
WARNING: Hot! Risk of burns. Wear heatprotective clothing,
safety goggles, and/or heat-protective gloves depending on the
symbols shown.
Be extremely carefulwhen using hot melt material. Even solidified
material may still be very hot.
Always wear protective clothing which safely covers all exposed parts
of the body.
ln case of burns:
o lmmediately cool affected skin areas using cold, clean water,
o Do not forcefully remove hot melt materialfrom the skin.
o lmmediately seek medical attention.
Allow only qualified personnel to perform the procedures described in this
document. When performing such tasks, wear protective clothing, and
equipment.
WARNING: Even when the circuit breaker or main power
switch is OFF, the unit is still electrically energized. Complete
the following steps prior to maintenance or repair:
Disconnect, lock out, and tag external power supply
To ensure the external power supply is disconnected, attempt to
operate the unit. lf the unit does not energize, proceed with
maintenance or repair work.
lf the unit energizes, repeat the disconnect, lock out, and tag
procedure. Re-test the unit.
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7. MaintenancelRepair
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Al EN-02-[XX-SAFEI-2 42-72
lssued 11/94 O 1995 Nordson Corporation
All rights raserved

Safety 1-7
7. Maintenance/Repair
(contd.)
8. Cleaning
Follow the specific instructions provided in this manual to relieve the
system pressure in the entire unit.
Secure pneumatically- or hydraulically-operated equipment against
uncontrolled movement.
Only use parts which do not compromise the safety of the unit. Only
use genuine Nordson parts.
Always use tools with insulated handles when removing or installing
components.
NOTE: Always refer to the material manufacturer's Material Safety Data
Sheet (MSDS) or material information sheet before working with any
material.
WARNING: Never clean any aluminum part or flush any
system using halogenated hydrocarbon fluids. Examples of
common halogenated hydrocarbons are: dichloromethylene,
1,1,1 -trichloroethylene, and perchloroethylene. Halogenated
hydrocarbons may react violently with aluminum parts.
WARNING: Fire, open flame, and smoking are prohibited when
cleaning fluids are used. Observe all explosion prevention
regulations. Cleaning fluids may only be heated using
temperatu re-controlled and explosion-protected heaters.
Never use an open flame to clean the unit or components of the unit.
Use only cleaning fluids designed or intended to be used with the hot
melt material being used in the unit. Never use paint fluids under any
circumstances.
Note the flash point of the cleaning fluid used. Only use a controlled
heating method to heat fluids.
Ensure sufficient room ventilation to draw off generated vapors.
Avoid prolonged breathing of vapors.
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o 1995 Nordson Corporation
All ,ights reserved 42-72
lssued 11/94 A1 EN-02-[XX-SAFE]-2

1-8 Safety
9. Thermoplastic Hot Melt
Material
10. Equipment and Material
Disposal
11. Polyurethane Reactive
('PUR")' Hot Melt Material
NOTE: Always refer to the material manufacturer's Material Safety Data
Sheet (MSDS) or material information sheet before working with any hot
melt material.
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Ensure the work area is adequately ventilated.
Do not exceed recommended processing temperatures. Doing so
creates a danger to personnel due to decomposition of the material
Dispose of equipment and materials used in operation and cleaning
according to local regulations.
NOTE: Always refer to the material manufacturer's Material Safety Data
Sheet (MSDS) or material information sheet before working with any hot
melt material.
WARNING: Exercise extreme caution and always provide
adeqqate ventilation when using reactive materials.
WARNING: Only use PUR material in units that are designed
to process such material. Using PUR material in units that
cannot process them can cause damage to the unit and
premature reaction of the hot melt material.
WARNING: PUR material contains isocyanate ingredients
which will irritate skin, mucous membranes of eyes and
respiratory passages.
WARNTNG: Persons witn eiisting asthmatic conditions may
experience diff iculty in breathing.
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AIEN{2-[XX-SAFE]-2 42-72
lssued 11/94 o 1995 Nordson Corporalion
All rights r€serued

Safety 1-g
11. Polyurethane Reactive
("PUR") Hot Melt Material
(contd.)
Because isocyanate ingredients are found in various concentrations in
reactive materials produced by ditferent manufacturers, it is imperative
that the material manufacturer's MSDS or material information sheet be
consulted BEFORE using reactive material. Pay particular attention to the
discussion of materialtoxicity, health effects, and reactivity condition.
There are certain universal safety guidelines that should be followed
when using any reactive material:
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Recommended processing temperatures must not be exceeded.
When handling and using reactive material, always wear thermally
protective gloves and long-sleeved clothing.
Wear chemical goggles to reduce the potential of eye contact.
Have eye washes available and provide a cold water source for burn
treatment.
The regular use of barrier cream for hands and face is recommended
for skin protection.
Do not eat, drink, smoke, or store food in working areas where PUR
material is being processed.
Wash hands thoroughly after working with reactive material.
Remove hot melt materialvapors using suitable extraction ventilation
equipment.
Use appropriate respiratory equipment where there is the danger of
inhaling isocyanate vapors or other ingredients contained in the PUR
material in concentrations exceeding permissible limit values.
ln case of very high concentrations of harmful substances, or if you
are unsure of the environmental conditions, respiratory protective
equipment (operating independent of the surrounding air) must be
used.
Do not operate the unit with PUR materials if you are unsure that ALL
adequate safety measures have been taken.
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@ 1995 Nordson Corporation
All rights reserued 42-72
lssued 11/94 Al EN{2-[XX-SAFE]-2

1-10 Safety
AIEN-02-[XX-SAFEI-2 42-72
lssued 11/94 @ 1995 Nordson Corporalion
All rights reserved

Section 2
Description
O 1995 Nordson Corporation
All rights reserved 42-72
lssued 10/95 A2EN{!3-[AD-31EX]-1

2-O Description
A2EN-03-[AD-31 EXI-1 42-72
lssued 10/95 @ 1995 Nordson Corporation
All rights reserved