Nordson SCF-M1 User manual

OBSOLETE
SCF-M1 Handgun
Part 108 236B
NORDSON CORPORATION AMHERST, OHIO USA

OBSOLETE
1997 Nordson Corporation
All rights reserved
108 236B
Issued 1/97
Manual 4-26
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 1992. 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, SCF, 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, Versa-Coat, Versa Screen, Package of Values, and Swirl
Coat are trademarks of Nordson Corporation.
UNICARB is a registered trademark of Union Carbide Corporation.

OBSOLETE
Table of Contents
i
E1997 Nordson Corporation
All rights reserved 108 236B
Issued 1/97 Manual 4-26
Table of Contents
1. Safety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Symbols 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Qualified Personnel 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intended Use 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less-Obvious Dangers 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Action in the Event of a System or Component Malfunction 8. . . . .
Maintenance and Repair 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Material and Solvent Precautions 10. . . . . . . . . . . . . . . . . . . . . . . . . .
Disposal 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Description 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The UNICARB System 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Installation 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Operation 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Startup 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shutdown 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Maintenance 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daily 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Periodically 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Troubleshooting 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Repair 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handgun Disassembly 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handgun Reassembly 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Parts 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Illustrated Parts List 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCF-M1 Handgun with Circulating Hose 28. . . . . . . . . . . . . . . . . . . .
SCF-M1 Gun with Non-Circulating Hose 30. . . . . . . . . . . . . . . . . . . .

OBSOLETE
Table of Contents
ii
E1997 Nordson Corporation
All rights reserved
108 236B
Issued 1/97
Manual 4-26

OBSOLETE
Model SCF-M1 Handgun
1
E1997 Nordson Corporation
All rights reserved 108 236B
Issued 1/97 Manual 4-26
Model SCF-M1 Handgun
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.
Refer to the National Fire Protection Association (NFPA) standard 33
and to federal, state, regulatory agency, and local codes for rules and
regulations covering installation and operation of spray systems.
Sobtain and read Material Safety Data Sheets (MSDS) for all materials
used.
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

OBSOLETE
Model SCF-M1 Handgun
2
1997 Nordson Corporation
All rights reserved
108 236B
Issued 1/97
Manual 4-26
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. Do not point this device at yourself or
other personnel. Failure to observe this warning may result in
serious injury or death.
Safety Symbols (contd)

OBSOLETE
Model SCF-M1 Handgun
3
E1997 Nordson Corporation
All rights reserved 108 236B
Issued 1/97 Manual 4-26
CAUTION: Failure to observe may result in equipment
damage.
CAUTION: Hot surface. Failure to observe may result in
burns.
“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 this
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
Safety Symbols (contd)
Qualified Personnel
Intended Use

OBSOLETE
Model SCF-M1 Handgun
4
E1997 Nordson Corporation
All rights reserved
108 236B
Issued 1/97
Manual 4-26
Read the installation section of all system component manuals before
installing your Nordson equipment. A thorough understanding of system
components and their requirements will help you to install this equipment
safely and efficiently.
WARNING: Failure to follow these safety procedures can result
in personal injury or death.
SAllow only qualified personnel to install Nordson equipment.
SUse only approved equipment. Using unapproved equipment in an
approved system may void agency approvals.
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 local codes.
SGround all electrically conductive 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, electrostatic cables, and air hoses and tubing
along a protected path. Make sure they will not be damaged. Do not
bend electrostatic cables around a radius of less than 6 in. (152 mm).
SInstall safety interlocks and approved, fast-acting fire detection
systems. These shut down the spray system and any flammable
liquid supply if a ventilation or electrical problem occurs, a fire is
detected, or other emergency situation develops.
Installation

OBSOLETE
Model SCF-M1 Handgun
5
E1997 Nordson Corporation
All rights reserved 108 236B
Issued 1/97 Manual 4-26
SMake sure the spray area floor is conductive to ground and that the
operator’s platform is grounded.
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 which may allow flammable 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.
Only qualified personnel, physically capable of operating the equipment
and with no impairments to their judgement or reaction times, should
operate this equipment.
Read all component manuals before operating this equipment. A
thorough understanding of system components and their operation will
help you operate the system safely and efficiently.
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 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.
Installation (contd)
Operation

OBSOLETE
Model SCF-M1 Handgun
6
E1997 Nordson Corporation
All rights reserved
108 236B
Issued 1/97
Manual 4-26
SKnow where EMERGENCY STOP buttons, shutoff valves, and fire
extinguishers are located. Make sure they work. If a component
malfunctions, shut down and lock out the equipment immediately.
SBefore operating, make sure all conductive equipment, objects being
sprayed, and fluid containers are connected to a true earth ground.
SNever operate equipment with a known malfunction or leak.
SNever point handguns or applicator nozzles at yourself or other
persons.
SNever touch exposed electrical connections on equipment while the
power is ON.
SDo not operate the equipment at pressures higher than the rated
maximum working pressure of any component in the system.
SShut off moving equipment before taking measurements or inspecting
workpieces.
SKnow the pinch points, temperatures, pressures, and material
composition for all equipment that you are working with. Recognize
potential hazards associated with these and exercise appropriate
caution.
SWear shoes with conductive soles, such as leather, or use grounding
straps to maintain a connection to ground when working with or
around electrostatic equipment.
SDo not wear or carry metallic objects (jewelry or tools) while working
with or around electrostatic equipment. Ungrounded metal can store
a static charge and cause harmful shocks.
SMaintain skin-to-metal contact between your hand and the gun handle
to prevent shocks while operating manual electrostatic spray guns. If
wearing gloves, cut away the palm or fingers.
SShut off electrostatic power supplies and ground gun electrodes
before making adjustments to powder spray guns.
SIf you notice electrical arcing in a spray area, shut down the system
immediately. An arc can cause a fire or explosion.
SKeep parts of the body or loose clothing away from rotating parts.
Remove personal jewelry and cover or tie back long hair.
Operation (contd)