USC AT500H DUAL PUMP STAND User manual

Operators Manual
2320 124th Road Sabetha, Kansas 66534 PH: [phone] FAX: [phone] www.uscllc.com
Revision Effective 17 JULY 2017
Document: TD-09-06-3039 Revision: A
AT500H
DUAL PUMPSTAND
UPGRADE KIT

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AT500H Dual Pump Stand Kit
Introduction
Thank you for choosing USC, LLC for your equipment needs. We appreciate your
business and will work diligently to ensure that you are satisfied with your choice.
OVERVIEW
The purpose of this manual is to provide you with the basic information needed
to install operate and maintain the AT500H Dual Pump Stand . It does not hold USC,
LLC liable for any accidents or injuries that may occur.
The technical information provided in this document is based on extensive testing
under controlled conditions at the USC research and development facility.
This information is given without guarantee as the conditions of operation and storage
of the equipment are beyond our control. Variables such as temperature, humidity,
viscosity of chemical products and changes in seed size or variety may all effect
the accuracy of application and seed coverage. Periodically check the equipment
calibration while treating and make adjustments as required. This will insure the
optimum seed coverage.
OPERATOR RESPONSIBILITIES
As the purchaser/owner/operator of this equipment and control system, you have an
obligation to install, operate, and maintain the equipment in a manner that minimizes
the exposure of people in your care to any potential hazards inherent in using this
equipment. It is critical that the owner of this equipment:
 Has a clear and documented understanding of the process this machine is
being used in and of any resulting hazards or special requirements arising
from this specific application.
 Allow only properly trained and instructed personnel to install, operate or
service this equipment.
 Maintain a comprehensive safety program involving all who work with this
machine and other associated process equipment.
 Establish clear areas of staff responsibility (e.g. operation, setup, sanitation,
maintenance, and repairs).
 Provide all personnel with necessary safety equipment.
 Periodically inspect the equipment to insure that the doors, covers, guards,
and safety devices are in place and functioning, that all safety instructions
and warning labels are intact and legible, and that the equipment is in good
working order.
 In addition to the operating instructions, observe and enforce the applicable
legal and other binding regulations, national and local codes.

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AT500H Dual Pump Stand Kit
As the person with the most to gain or lose from working safely, it is important that you
work responsibly and stay alert. By following a few simple rules, you can prevent an
accident that could injure or kill you or a co-worker.
 Disconnect, lockout, and tagout electrical and all other energy sources
before inspecting, cleaning, servicing, repairing, or any other activity that
would expose you to the hazards of electrical shock.
 Do not operate, clean, or service this equipment until you have read and
understood the contents of this manual. If you do not understand the
information in this manual, bring it to the attention of your supervisor, or call
USC at [phone] for assistance.
 Any operator who is known or suspected to be under the influence of alcohol
or drugs should not be allowed to operate the equipment.
 Understand and follow the safety practices required by your employer and
this manual.
 PAY ATTENTION to what you and other personnel are doing and how these
activities may affect your safety.
 Failure to follow these instructions may result in serious personal
injury or death.
RECEIVING YOUR EQUIPMENT
As soon as the equipment is received, it should be carefully inspected to make certain
that it has sustained no damage during shipment and that all items listed on the
packing list are accounted for. If there is any damage or shortages, the purchaser
must immediately notify USC, LLC. Ownership passes to purchaser when the unit
leaves the USC, LLC. premises. The purchaser is responsible for unloading and
mounting all components of the equipment.
Document the serial number of the machine for future reference. The serialization
label is located on the back of the control panel bracket.
SERIAL NUMBER:__________________________________
Serial
Number

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AT500H Dual Pump Stand Kit
Section Contents Page #
Section A Safety Instructions.................................................................5
Section B Installation............................................................................13
Section C Mechanical Operation..........................................................15
Section D Electrical Operation .............................................................17
Pump Calibration....................................................................19
Pump Stand Operation...........................................................22
Section E Troubleshooting...................................................................23
Section F Maintenance .........................................................................24
Section G Storage..................................................................................27
Section H Mechanical Drawing.............................................................28
Section I Limited Warranty..................................................................41
Table of Contents

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AT500H Dual Pump Stand Kit
Safety Instructions Section
A
Every year accidents in the work place maim, kill and injure people. Although it may
be impossible to prevent all accidents, with the right combination of training, operating
practices, safety devices, and operator vigilance, the number of accidents can be
significantly reduced. The purpose of this section is to educate equipment users
about hazards, unsafe practices, and recommended hazard avoidance techniques.
SAFETY WORDS AND SYMBOLS
It is very important that operators and maintenance personnel understand the words
and symbols that are used to communicate safety information. Safety words, their
meaning and format, have been standardized for U.S. manufacturers and published by
the American National Standards Institute (ANSI). The European Community (E.C.)
has adopted a different format based on the International Standards Organization
(I.S.O.) and applicable machinery directives. Both formats are presented below.
Graphic symbols are not standardized, but most manufacturers will use some variation
of the ones seen in this manual.
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury and/or property damage.
Provides additional information that the operator needs to be
aware of to avoid a potentially hazardous situation.
SAFETY
INSTRUCTIONS

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AT500H Dual Pump Stand Kit
Mandatory Lockout Power Symbol. Disconnect, lockout and
tagout electrical and other energy sources before inspecting,
cleaning or performing maintenance on this panel.
International Safety Alert Symbol. The exclamation point (!)
surrounded by a yellow triangle indicates that an injury hazard
exists. However, it does not indicate the seriousness of
potential injury. The exclamation point (!) is also used with the
DANGER, WARNING and CAUTION symbols so the potential
injury is indicated.
Electrocution Hazard Symbol. This symbol indicates that an
electrocution hazard exists. Serious injury or death could result
from contacting high voltage.
International Electrocution Hazard. This symbol indicates
that an electrocution hazard exists. Serious injury or death
could result from contacting high voltage.
Mandatory Read Manual Action Symbol. (I.S.O. format) This
symbol instructs personnel to read the Operators Manual before
servicing or operating the equipment.
Mandatory Read Manual Action Symbol. This symbol
instructs personnel to read the Operators Manual before
servicing or operating the equipment.
Notice is used to notify people of important installation,
operation or maintenance information which is not hazard
related.

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AT500H Dual Pump Stand Kit
LOCKOUT / TAGOUT PROCEDURES
Lockout/Tagout is the placement of a lock/tag on an energy isolating device in
accordance with an established procedure. When taking equipment out of service to
perform maintenance or repair work, always follow the lockout/tagout procedures as
outlined in ANSI Z344.1 and/or OSHA Standard 1910.147. This standard “requires
employers to establish a program and utilize procedures for affixing appropriate
lockout devices or tagout devices to energy isolating devices and to otherwise disable
machines or equipment to prevent unexpected energizing, start-up, or release of
stored energy in order to prevent injury to employees.”
HAZARD REVIEW
Electrocution Hazard
Electrocution accidents are most likely to occur during
maintenance of the electrical system or when working on or
near exposed high voltage wiring. This hazard does not exist
when the electrical power has been disconnected, properly
locked, and tagged out.
Automatic Start Hazard
The equipment may be controlled by an automated system
and may start without warning. Failure to properly disconnect,
lockout, and tagout all energy sources of remotely controlled
equipment creates a very hazardous situation and could cause
injury or even death. PLEASE STAY CLEAR AND BE ALERT.

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AT500H Dual Pump Stand Kit
YOU are responsible for the SAFE operation and maintenance of your USC, LLC
equipment . YOU must ensure that you and anyone else who is going to operate,
maintain, or work around the treater be familiar with the operating and maintenance
procedures and related SAFETY information contained in this manual. This manual
will take you step-by-step through your working day and alert you to good safety
practices that should be adhered to while operating the treater.
Remember, YOU are the key to safety. Good safety practices not only protect you,
but also the people around you. Make these practices a working part of your safety
program. Be certain that EVERYONE operating this equipment is familiar with the
recommended operating and maintenance procedures and follows all the safety
precautions. Most accidents can be prevented. Do not risk injury or death by ignoring
good safety practices.
 Equipment owners must give operating instructions to operators or employees
before allowing them to operate the machine, and at least annually thereafter per
OSHA (Occupational Safety and Health Administration) regulation 1928.57.
 The most important safety device on this equipment is a SAFE operator. It is the
operator’s responsibility to read and understand ALL Safety and Operating
instructions in the manual and to follow them. All accidents can be avoided.
 A person who has not read and understood all operating and safety instructions is
not qualified to operate the machine. An untrained operator exposes himself and
bystanders to possible serious injury or death.
 Do not modify the equipment in any way. Unauthorized modification may impair the
function and/or safety and could affect the life of the equipment.
 Think SAFETY! Work SAFELY!
GENERAL SAFETY
1. Read and understand the Operator’s Manual and all safety labels
before operating, maintaining, adjusting or unplugging the
seed treater .
2. Only trained persons shall operate the seed treater. An untrained
operator is not qualified to operate the machine.
3. Have a first-aid kit available for use should the need arise, and
know how to use it.

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AT500H Dual Pump Stand Kit
4. Provide a fire extinguisher for use in case of an accident. Store in
a highly visible place.
5. Do not allow children, spectators or bystanders within hazard area
of machine.
6. Wear appropriate protective gear. This includes but is not limited
to:
 A hard hat
 Protective shoes with slip resistant soles
 Protective goggles
 Heavy gloves
 Hearing protection
 Respirator or filter mask
7. Place all controls in neutral or off, stop motor, and wait for all
moving parts to stop. Then disable power source before servicing,
adjusting, repairing, or unplugging.
8. Review safety related items annually with all personnel who will be
operating or maintaining the Equipment.
OPERATING SAFETY:
1. Read and understand the Operator’s Manual and all safety labels before using.
2. Disconnect and disable electrical supply completely and wait for all moving parts to
stop before servicing, adjusting, repairing or unplugging.
3. Clear the area of bystanders, especially children, before starting.
4. Be familiar with the machine hazard area. If anyone enters hazard area, shut down
machine immediately. Clear the area before restarting.
5. Keep hands, feet, hair and clothing away from all moving and/or rotating parts.
6. Stay away from overhead obstructions and power lines during operation and
transporting. Electrocution can occur without direct contact.
7. Do not operate machine when any guards are removed.
8. Inspect welds and repair if needed.

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AT500H Dual Pump Stand Kit
PLACEMENT SAFETY
1. Move only with the appropriate equipment
2. Stay away from overhead power lines when moving the treater. Electrocution can
occur without direct contact.
3. Be familiar with machine hazard area. If anyone enters hazard areas, shut down
machine immediately. Clear the area before restarting.
4. Operate the treater on level ground free of debris. Anchor the treater to prevent
tipping or upending.
Before placement of the pump stand, be sure that ground is
reasonably level. The pump stand may topple or work improperly
if the ground is too uneven, damaging the equipment and/or
causing personal injury.
MAINTENANCE SAFETY
1. Review the Operator’s Manual and all safety items before
working with, maintaining or operating the Equipment .
2. Place all controls in neutral or off, stop motors, disable power
source, and wait for all moving parts to stop before servicing,
adjusting, repairing or unplugging.
3. Follow good shop practices:
Keep service area clean and dry.
Be sure electrical outlets and tools are properly grounded.
Use adequate light for the job at hand.
4. Keep hands, feet, hair and clothing away from all moving and/or rotating parts.
5. Clear the area of bystanders, especially children, when carrying out any
maintenance and repairs or making any adjustments.
6. Before resuming work, install and secure all guards when maintenance work is
completed.
7. Keep safety labels clean. Replace any sign that is damaged or not clearly visible.

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AT500H Dual Pump Stand Kit
SAFETY LABELS
1. Keep safety labels clean and legible at all times.
2. Replace safety labels that are missing or have become illegible.
3. Replaced parts that displayed a safety sign should also display the current sign.
4. Replacement safety labels are available. Contact USC at [phone] .
How to Install Safety Labels:
 Be sure that the installation area is clean and dry.
 Be sure temperature is above 50oF (10oC).
 Decide on the exact position before you remove the backing paper.
 Remove the smallest portion of the split backing paper.
 Align the sign over the specified area and carefully press the small portion with
the exposed sticky backing in place.
 Slowly peel back the remaining paper and carefully smooth the remaining
portion of the sign in place.
 Small air pockets can be pierced with a pin and smoothed out using the piece
of sign backing paper.
Located on the USC equipment you will find safety labels.
Always be sure to read and follow all directions on the labels.
Guards provided with USC equipment are to remain in place
during operation.

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AT500H Dual Pump Stand Kit
Think SAFETY! Work SAFELY!
REMEMBER—If Safety Labels have been damaged, removed, become illegible, or
parts replaced without safety labels, new labels must be applied. New safety labels are
available from USC at [phone].
Part # 09-02-0010

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AT500H Dual Pump Stand Kit
Installation Section
B
1. Place the pump stand assembly on the front of the treater frame. Make sure the
pump stand base slides back until the front lip makes contact with the front of the
treater frame.
2. Use the three mounting plates (1054C4), six 3/8” X 3.50” bolts (06-01-0022) and
six 3/8” nuts (06-03-0014) to secure the assembly to the treater as shown below.
HIGH VOLTAGE ~ Always disconnect the power source
before working on or near the control panel or lead wires.
HIGH VOLTAGE ~ Use insulated tools when making
adjustments while the controls are under power.
Permanent installation may require additional electrical cords,
chemical tubing, and air lines, since each installation is unique.
NOTICE
2
1

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AT500H Dual Pump Stand Kit
INSTALLATION
3. Connect the Treater Auxiliary Signal cable (PJ3005) on the bottom of the pump
stand control panel to one of the Auxiliary Ports (PJ1203 - PJ1206) on the bottom
of the treater control panel.
3
4. Plug the power cord (PJ3001) into a properly grounded 110V outlet.
5. Connect the quick disconnect on the hoses connected to the top valve on both
pump stands to one of the valves on the static mixer assembly located under the
treater control panel.
6. After all of the connections are complete, use wire tie wraps to secure both
treatment hoses and the auxiliary cable to the treater. Run them down the vertical
frame post next to the pump stand control panel, along the bottom of the frame and
back up the post the static mixer and treater control panel are mounted.
5
Do not overtighten the tie wraps. Make sure
not to restrict the flow of treatment as it is
pumped to the treater.
NOTICE

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AT500H Dual Pump Stand Kit
Mechanical Operation Section
C
The pump stand utilizes a variable speed pump motor and special norprene pump
tubing for liquid metering. Each pump comes equipped with 1 peristaltic pump head.
Liquid will only come into contact with the inside diameter of the pump tubing and not
the pump. This allows for easy cleanup and less maintenance of the pump.
To open the pump head, rotate the lever to the left. Place the pump tubing inside the
pump head so it fits inside the notches and above the rollers (bottom, left). Rotate the
lever back to the right and close the pump head, clamping the hose inside the head
(bottom, right). Wear or fatiguing of the tubing within the pump head due to
compression is normal. When tubing becomes worn or chemical rates begin to slow
down, open the pump head and move the tubing to a different position. If the entire
piece of tubing becomes worn, simply replace with a new section. When not using the
pump stand for several days or when storing, open the pump head and remove the
tubing to prevent any extra compression.
Pump Head Open Pump Head Closed
PERISTALTIC PUMP HEAD AND MOTOR

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AT500H Dual Pump Stand Kit
SEED TREATMENT VALVES (Left Pump Stand): When the handle of the bottom
valve is in the horizontal position the liquid recirculates back into the top of the tank.
In the vertical position it sends the liquid up to the top valve.
When the handle of the top valve is in the horizontal position the liquid is directed to
the short, unconnected tube so the liquid may flow into a measuring container for
pump calibration purposes. In the vertical position it sends the liquid to the treater.
SEED TREATMENT VALVES (Right Pump Stand): When the handle of the bottom
valve is in the vertical position the liquid recirculates back into the top of the tank.
In the horizontal position it sends the liquid up to the top valve.
When the handle of the top valve is in the horizontal position the liquid is directed to
the short, unconnected tube so the liquid may flow into a measuring container for
pump calibration purposes. In the vertical position it sends the liquid to the treater.
SEED TREATMENT VALVES
Left Tank Source Valve Right Tank Source Valve

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AT500H Dual Pump Stand Kit
Electrical Operation Section
D
HIGH VOLTAGE ~ Always disconnect the power source
before working on or near the control panel or lead wires.
HIGH VOLTAGE ~ Use insulated tools when making
adjustments while the controls are under power.
AUTHORIZED PERSONNEL only shall work on the control
panel. Never allow anyone who has not read and familiarized
themselves with the owner’s manual to open or work on the
control panels.
This section provides a general overview and description of the operator controls for
the pump stands.
General Panel Descriptions:
The pump stand control panel is a plug connected enclosure that is located on the
pump stand frame. This panel connects the pump stand electrical components to the
treater panel. The pump stand has four cables. One connected to each pump motor,
one connecting to the treater panel and one standard 110V plug.

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AT500H Dual Pump Stand Kit
1. CHEMICAL PUMP SWITCH: When this switch is turned to HAND, the chemical
pump will run. When the switch is turned to AUTO, the chemical pump will only run
when the Auxiliary Ports H-O-A switch on the treater control panel is set to HAND
or AUTO. The 2-Wire auxiliary cable on the pump stand panel must be connected to
the auxiliary port on the treater control panel for this feature to work. When placed
in AUTO, it will only run when the proximity switch located in the bottom of the seed
treater supply hopper detects seed and the atomizer is running. The proximity switch
determines when seed is present in the hopper. When the proximity switch no longer
detects seed, a time delay defined inside the treater control panel will automatically
shut off the chemical pump at a pre-determined amount of time after the hopper has
emptied. The time delay allows all seed in the hopper to receive equal coverage.
3. CHEMICAL PUMP DIRECTION SWITCHES: These switchs allow the operator to
change the pump direction between forward, off and reverse. It has a safety feature
that will not allow the operator to switch from forward to reverse or vice-versa without
momentarily stopping and releasing the switch in the center position.
4. PUMP SPEED DIALS: These dials allow the operator to increase or decrease the
speed of pump. The setting should be chosen in relation to the desired application
rate for the treatment being applied to the seed.
ELECTRICAL OPERATION
1
2 3

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AT500H Dual Pump Stand Kit
PUMP CALIBRATION
The following steps illustrate how to calibrate the peristaltic pump motor. A stop watch
will be needed in the calibration process.
1. Lock down the pump tubing on all peristaltic pump
head (see page 15).
2. Premix enough liquid for the amount of seed you will
be treating and pour into the mix tank. It’s always a
good practice to mix up 20% extra slurry to help fill all
the lines.
3. Place the top valve to the CALIBRATE position.
Place the bottom valve to RECIRCULATE position.
4. Turn the pump direction switch to FORWARD.
5. Turn the HAND / OFF / AUTO switch to the HAND
position and set the pump LIQUID ADJ. dial (right,
bottom) to about 500 or half speed. The liquid should
begin re-circulating from the bottom of the mix tank,
through the pump, and back into the top of the mix
tank.
6. Allow pump to re-circulate liquid for approximately
15 minutes to ensure all air has been removed from
the liquid lines. This will also help break-in the pump
tubing, which is critical before checking pump
calibration.
7. After you have allowed the liquid to re-circulate you
are ready to calibrate the pump. To determine the
number of ounces needed in one minute, you will need
to know the seed flow rate from the seed treater.
EXAMPLE: The seed treatment slurry rate is 4 ounces per cwt.
Seed Flow Rate = 6.41 cwt / min. x 4 oz./ cwt. = 25.6 oz./min.
25.6 oz. is the rate the pump should be pumping in one minute.

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AT500H Dual Pump Stand Kit
PUMP CALIBRATION
8. You will need a stopwatch and a measuring receptical marked with ounces and / or
mililleters to perform the calibration.
9. Set the Liquid Adjustment Dial . You can use the chart on page 21 to find a starting
point.
EXAMPLE:
The ounces needed in one minute = 25.6 oz/min.
An approximate dial starting point is 310.
9. Turn the Pump Control switch to the OFF position. Place the bottom valve to the
TO PROCESS / CALIBRATE position. Hold the measuring container under the
calibration hose coming from the top valve. Turn the Pump Control valve to the
HAND position. As soon as the liquid begins to flow into the container start the
stopwatch. When the stopwatch reaches one minute, turn the switch to the OFF
position.
10. Place the measuring container on a flat and level surface. Note the total ounces of
chemical that is in the container. This number should equal the number of ounces
needed to flow through the pump in one minute. If the ounces needed per minute
have not been met, re-adjust the pump speed up or down accordingly and repeat
steps 9 and 10 until the liquid flow rate has been matched.
11.Once yoou have the pump adjusted to the correct speed, Push the lock down lever
on the top of the pump speed dial to the left to lock it in place.
USC recommends the operator write down the pump
speed setting as well as the seed type, size, variety and other
information associated with the seed. Over time, enter this
information into an Excel spread sheet creating a reference
database that will reduce the amount of time spent adjusting
the treatment flow.
NOTICE