Nordson Rhino Reference guide

Electric Changeover
RhinorUnloaders
Customer Product Manual
Part 229762-02
Issued 6/15
NORDSON CORPORATION DAMHERST, OHIO DUSA

Part 229762-02 E2015 Nordson Corporation
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 1997. 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.
All other trademarks are the property of their respective owners.

Table of Contents i
Part 229762-02
E2015 Nordson Corporation
Manual
Table of Contents
Safety Section A 1................................................
Description Section A 2............................................
Installation Section A 3............................................
Operation Section A 4.............................................
Maintenance Section A 5..........................................
General Troubleshooting Section A 6................................
Unloader Section B 1..............................................
Air Valve and Air Motor Section B 2.................................
Frame Section B 3................................................
Options Section B 4...............................................
Part A
General
Part B
Subassemblies

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Table of Contents i
Part 229762-02
E2015 Nordson Corporation
Part A, General
Table of Contents
1. Introduction A 1-1.............................................
2. Safety Symbols A 1-1.........................................
3. Qualified Personnel A 1-3.....................................
4. Intended Use A 1-3...........................................
5. Installation A 1-3.............................................
6. Operation A 1-5..............................................
7. Less-Obvious Dangers A 1-7...................................
8. Action in the Event of a System or Component Malfunction A 1-7...
9. Maintenance and Repair A 1-7.................................
10. Material and Solvent Precautions A 1-9..........................
11. Disposal A -12...............................................
1. About This Manual A 2-1......................................
2. General A 2-1................................................
3. Basic Operation A 2-3.........................................
4. Theory of Operation A 2-5.....................................
Pneumatic Controls A 2-5...................................
Electric Controls A 2-5......................................
Electric Solenoid A 2-6......................................
Air Motor Air Supply A 2-6...................................
Blow-Off Air Supply A 2-6...................................
Elevator Air Supply A 2-6....................................
Down A 2-6.............................................
Up A 2-7................................................
Neutral A 2-7............................................
Pump Operation A 2-7......................................
Section A 1
Safety
Section A 2
Description

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Part 229762-02 E2015 Nordson Corporation
5. Specifications A 2-11..........................................
Electrical Supply A 2-11.....................................
Air Supply A 2-11...........................................
Overall Dimensions A 2-11..................................
Baseplate Mounting Holes A 2-11............................
Maximum Output A 2-12....................................
Maximum Stroke Rate A 2-12................................
Viscosity Range A 2-12.....................................
Air Consumption A 2-13.....................................
1. General A 3-1................................................
2. Automatic Changeover Installation A 3-2........................
Air Line Connections A 3-2..................................
Electrical Connections A 3-4.................................
3. New Equipment Installation A 3-5...............................
4. Verifying the Empty Drum Setting A 3-7.........................
1. Introduction A 4-1.............................................
Elevator Movement A 4-1...................................
UP Elevator Movement A 4-1..............................
DOWN Elevator Movement A 4-1..........................
NEUTRAL Position A 4-1.................................
2. New Equipment Startup A 4-3..................................
3. Routine Operating Procedures A 4-6............................
Daily Startup A 4-6.........................................
Forced Changeover A 4-7...................................
Temporary Shutdown A 4-7..................................
Restart after Temporary Shutdown A 4-8......................
Container Changing A 4-8...................................
Extended Shutdown A 4-10..................................
Restart after Extended Shutdown A 4-11......................
4. Changing to a Different Material A 4-11..........................
Section A 2
Description (contd.)
Section A 3
Installation
Section A 4
Operation

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Part 229762-02
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1. Introduction A 5-1.............................................
2. Daily Maintenance A 5-1......................................
Filter Element Change Procedure A 5-2.......................
3. Weekly Maintenance A 5-3....................................
4. Periodic Maintenance A 5-3....................................
System Cleaning A 5-4......................................
1. Introduction A 6-1.............................................
2. Troubleshooting Procedures A 6-2..............................
Section A 5
Maintenance
Section A 6
General Troubleshooting

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Part 229762-02
E2015 Nordson Corporation
Part A, Section 1
Safety

Safety
A 1-0
Part 229762-02 E2015 Nordson Corporation

Safety A 1-1
Part 229762-02
E2015 Nordson Corporation
Section A 1
Safety
Introduction
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.
Safety Symbols
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.

Safety
A 1-2
Part 229762-02 E2015 Nordson Corporation
Safety Symbols (contd)
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 A 1-3
Part 229762-02
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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
repair the equipment. It is the responsibility of the company operating the
equipment to see that its personnel meet these requirements.
Intended Use
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
Installation
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.

Safety
A 1-4
Part 229762-02 E2015 Nordson Corporation
Installation (contd)
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.

Safety A 1-5
Part 229762-02
E2015 Nordson Corporation
Operation
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.

Safety
A 1-6
Part 229762-02 E2015 Nordson Corporation
Operation (contd)
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.

Safety A 1-7
Part 229762-02
E2015 Nordson Corporation
Less-Obvious Dangers
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
Action in the Event of a System or Component Malfunction
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.
Maintenance and Repair
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.

Safety
A 1-8
Part 229762-02 E2015 Nordson Corporation
Maintenance and Repair (contd)
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.

Safety A 1-9
Part 229762-02
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Maintenance and Repair (contd)
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.
Material and Solvent Precautions
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.

Safety
A 1-10
Part 229762-02 E2015 Nordson Corporation
Material and Solvent Precautions (contd)
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.