Pentair Hypro 9307C Series User manual

pentair.com
INSTALLATION AND
OPERATION MANUAL
L-1492C Rev. C (12-09-19)
HYDRAULICALLY-DRIVEN
CENTRIFUGAL PUMPS
9307C 9307CWS

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Contents
Introduction.................................................................................................................................................3
Description............................................................................................................................................3
Intended Use(s)....................................................................................................................................3
Misuses ................................................................................................................................................3
Pump Technical Data ........................................................................................................................4-5
Fluid Pumping Applications ..................................................................................................................5
Tools.....................................................................................................................................................5
Lifting, Transport, and Intermediate Storage........................................................................................6
Assembly and Installation............................................................................................................. 6
Assembly ..............................................................................................................................................6
Installation .........................................................................................................................................6-8
Installation of Plumbing ........................................................................................................................8
Commissioning Start-Up, Operation, Shutdown...................................................................................9
Information............................................................................................................................................9
Start-Up, Operation, Shutdown ............................................................................................................9
Maintenance and Servicing................................................................................................................... 10
Information..........................................................................................................................................10
Cleaning .............................................................................................................................................10
Disposal..............................................................................................................................................10
Parts Illustration.............................................................................................................................11-12
Troubleshooting..................................................................................................................................13
Repair Instructions ............................................................................................................................14-19
Limited Warranty on Hypro/SHURflo Agricultural Pumps and Accessories .................back cover

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Hypro 9307 centrifugal pumps can be used in chemical spraying and transfer applications where high flow (370 GPM)
and high pressure (135 PSI) capabilities are desired. They are designed to provide resistance to strong chemical
attack. Stainless steel pumps are ideal for use with acid herbicide applications. Polypropylene pumps provide excellent
resistance to corrosive chemicals. Pumps can operate in a variety of environments, but should never be used to pump
fluids above 140°F (60°C) or below 32°F (0°C). Other common misuses are listed in the Misuses section of this manual.
Contact Hypro technical services about any questions regarding specific uses.
Hypro centrifugal pumps are designed to operate effectively within the specified speed, pressure and environmental
ranges specified in this manual. Operating a pump outside of these ranges will void the warranty and could cause
damage to property, serious injury or death. Some common misuses of Hypro centrifugal pumps are:
• DO NOT run the pump faster than the maximum recommended speed.
• DO NOT run the pump higher than the maximum recommended pressure.
• DO NOT use pumps in explosive environments.
• DO NOT operate a pump with a gasoline engine in an enclosed area.
• DO NOT run pumps when the liquid has exceeded the maximum or minimum temperature limit (See Intended
Uses).
• DO NOT pump non-approved liquids (See Fluid Pumping Applications).
• DO NOT pump water or other liquids for human consumption.
• DO NOT operate any Hypro pump under the influence of drugs or alcohol.
• DO NOT run pump in reverse of its intended rotation.
• DO NOT attach a pipe, hose or fittings to the pump that is not rated for the maximum pressure of the pump
(outlet) or vacuum of the pump (inlet).
• DO NOT run the pump dry.
Hypro centrifugal pumps are designed for agricultural and industrial spraying and transfer of a variety of fluids: water, insec-
ticides, herbicides, wettable powders, emulsives, liquid fertilizers, etc. Hypro Series 9307 hydraulic motor-driven centrifugal
pumps provide smooth performance. They can be conveniently mounted on the tractor or sprayer, becoming part of the
vehicle’s hydraulic system and freeing the PTO for other uses.
Description
Intended Use(s)
Misuses
Introduction
Purpose of Manual
Hypro has provided this manual to provide instructions and requirements that must be met when installing, using and
maintaining the product(s) identified on the cover.
If the product is sold, the seller must pass this manual on to the new owner.
The following special attention notices are used to notify and advise the user of this product of procedures that may be
dangerous to the user or result in damage to the product.
Attention is used to notify of installation, operation, or maintenance information that is important but not safety related.
This symbol is used to denote the presence of an electrical hazard that will result in personal injury, death, or property
damage.
This symbol is used to denote the presence of a hazard that will result in personal injury, death, or property damage.
California Proposition 65 Warning -- This product and related accessories contain chemicals known to the
State of California to cause cancer, birth defects or other reproductive harm.

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Pump Technical Data
Series 9307C/CWS Pump Specifications
Series 9307C/CWS Performance Data
Model No. Max. Flow Max. Pressure Max. Hyd. Ports Hydraulic Ports Max. Fluid Max. Motor Dry
Rate (PSI) (GPM) GPM Temp. PSI Weight
9307C 370 135 23 3” NPT or 300 7/8” SAE Inlet 140°F 3000 86 lbs.
Universal Inlet (60°C) (39 Kg)
2” NPT or 220 1-1/16” SAE Outlet
Universal Outlet
9307CWS 370 135 23 300 Universal Inlet 7/8” SAE Inlet 140°F 3000 92 lbs.
(60°C) (42 Kg)
220 Universal 1-1/16” SAE Outlet
Outlet 7/16” SAE Case Drain

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Tools
Series 9307C/CWS Performance Data - cont’d.
Fluid Pumping Applications
Pump Materials Compatibility
Application YES NO Comments
WEED CONTROL CHEMICALS X
INSECT CONTROL X
BRUSH CONTROL X
PEST CONTROL CHEMICALS
AND FUMIGANTS X
LIQUID FERTILIZERS X
POWDERED FERTILIZERS X
FLUID TRANSFER X
BLEACH X
MILD ACIDS X
STRONG ACIDS X NOT FOR ACIDS WITH pH < 3
The following chemicals should never be put through any Hypro pump:
• Gasoline (petrol)
• Kerosene/Kerosine (paraffin)
• Diesel fuel
• Ceramic slurries
• Sewage
• Potable water
• Abrasive fluids
• Anhydrous ammonia
• Any other chemicals not compatible with the pump materials
• Hypro pumps are not designed to be used as clean water pumps as defined in 10CFR Parts 429 and 431.
Hypro centrifugal pumps and mounting assemblies are designed with Imperial (inch) bolts. However, there are many
metric (mm) sizes which will also work with these bolts. In most cases, an adjustable spanner (crescent) wrench can
be used. For other cases, refer to an Imperial-to-metric conversion chart.

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Lifting Instructions
• Before attempting to lift a Hypro pump, ensure that the surrounding working area is free of hazards which could
cause injury or damage to property.
• During lifting operations, any personnel not involved in the lift should not enter the working area.
• If lifting hooks, rope or chains are being used for a lift, they must be free of damage and be rated to carry 150%
of the weight of the load to be lifted.
• Always wear steel-toed shoes and cut-resistant gloves when attempting to lift.
• When lifting and carrying, always keep the pump close to your body. (See Figure 1.)
• When starting the lift, bend your knees and keep your back straight. (See Figure 1.) Tightening the stomach
muscles will help hold one’s back straight.
• During the lift, use one’s legs to do the work. Never use your back and make sure your legs are at least shoulder-
width apart. (See Figure 1.)
Figure 1
Packaging Descriptions and Unpacking Instructions
• Hypro plunger pumps are shipped in cardboard boxes for safe transporting.
• When pumps are shipped in large quantities, they may be put on a pallet to allow for easy storage, lifting and
handling.
• Before lifting any pump or pallet, determine the weight via the attached packing slips to establish what lifting
equipment or method should be used.
• Once the pump is unpacked, dispose of all the packaging in a manner which follows local and national regulations.
Transport
• All Hypro pumps are capable of being transported by air, sea, rail or motor vehicle. When the pump is shipped,
ensure that the pump is moved in accordance with local and national laws, and ensure the pump is secured to the
vehicle to prevent unwanted movement which could cause damage to person or property. Prior to shipping, all
fluids should be removed from the pump.
Storage
• New pumps in their boxes can be stored years as long as the port plugs are not removed. Once the plugs have
been removed, if the pump is not to be used for an extended period of time (i.e. more than 30 days), the
pump must be winterized as described in the Cleaning section of this manual.
This pump comes completely assembled.
Pumps must be installed in accordance with Hypro’s installation instructions. Failure to follow instructions
will automatically void the Limited Warranty.
Preliminary to Mounting
Consult the owners manual to determine the type and capacity of the hydraulic system. Make sure the hydraulic system is
recommended to operate with a continuous load. Refer to the Pump Selection Guide to confirm you have the proper pump
for your hydraulic system.
Lifting, Transport and Intermediate Storage
Assembly and Installation
Assembly
Installation

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Installation Instructions - cont’d.
Check to see that the pump impeller can be turned by hand. (Turn the shaft clockwise using a deep socket wrench on the
impeller nut.) If it cannot be turned, open the pump casing to look for obstructions. Clean out any corrosion build up where
the casing fits over the eye of the impeller.
Pump Inlet Line
To achieve full capacity from the pump, the inlet line should be at least the same size as the inlet port on the pump. Re-
ducing this line size will restrict the capabilities of the pump. The line must also be free of air leaks. Check all fittings and
connections in the suction line for tightness. The introduction of air may affect the priming and pumping capabilities of the
pump. Use good quality suction hose that will not be collapsed by suction.
For non self-priming models, the centrifugal pump should be mounted below the liquid level and as near to the liquid
source as possible to allow for the shortest suction line practical. To achieve optimal performance, the suction line should
slope down into the pump. Avoid rises and humps that could trap air in the line to the pump. The suction line and pump
should be filled with liquid prior to starting the pump, and all discharge lines should be open.
Pump Outlet Line
The recommended orientation for the outlet port is pointing straight up. This allows liquid to stay in the pump while it is
priming. The outlet line should be the same size as the pressure port on the pump to give the optimal flow. The line should
have as few restrictions and elbows as possible to optimize the pump performance and reduce pressure drop from the
pump to the spray tips.
Priming the Pump
The 9307C Series pump must not be run dry.
Before starting the pump, the inlet line and pump must be filled with liquid and all discharge lines must be open. Standard,
non-wet seal pumps must not be run unless they are completely filled with liquid because there is a danger of damaging the
mechanical seal, which depends on the liquid for its lubrication. On pumps with ForceField™ Technology (wet seal), dry run
cannot exceed 15 minutes in one single event, or there is a risk of damage to the seal.
Non-self-priming models should be mounted below the level of the liquid. The suction line should slope down to the pump
and be free of dips and bends. If this cannot be done, a foot valve should be installed in the end of the inlet line so that the
line can be completely filled with liquid before starting the pump.
For best priming results, the top vent plug should be removed from the pump casing, and a vent line (1/4” [6.35 mm] tubing
is sufficient) should be installed running back to the top of the tank. This line prevents air lock and allows the pump to prime
itself by bleeding off trapped air. The small stream of liquid that returns to the tank during operation is negligible. The discharge
from this line should be positioned in the tank above the high liquid level. Self-priming models can be primed by removing the
top vent plug and filling the priming chamber. The priming chamber will fill to the level of the inlet port. After use, the priming
chamber should be flushed and drained to avoid chemical corrosion and damage from freezing. Drain by removing the lower
drain plug.
Controlling the Pump Flow
The best way to control the flow is by incorporating two control valves in a pipe tee immediately after the strainer in the dis-
charge line. This permits controlling agitation flow independently of nozzle flow.
In any centrifugal pump, it is the large volume of liquid which puts load on the drive. Use only the flow needed to develop
the pressure required at the boom and to maintain adequate agitation. Hydraulic motor-driven centrifugal pumps are easily
adjusted to the exact flow required, as explained in the Operating Instructions of this manual.
Centrifugal Pump Control
Hypro now offers many different components for spraying systems. The Hypro centrifugal pump control incorporates the
electric flow control valve, a self-cleaning line strainer, a visual pressure gauge and a manual agitation control valve.
Flow Control Valve
A high-flow electric proportional valve allows for maximum flow control to the boom valves. It provides smooth, rapid con-
trol that can be controlled from either an electronic rate controller or switch box.
Strainers
The recommended placement of the strainer for a centrifugal pump is in the pump outlet line. This will eliminate any pos-
sible restriction that the strainer could create if it were installed in the inlet line. Ensure that the proper strainer size and
screen mesh are used to limit the pressure drop and achieve the best filtration. Line strainers can also be installed in the
tank fill line to filter liquid as it is loaded into the tank as well as in the boom lines to further filter the solution prior to the
spray tips. Tank baskets can also be used to filter material added through the tank lid.

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Installation Instructions - cont’d.
Agitation
The centrifugal pump control contains a manual agitation control valve that can be adjusted to provide the right amount of
flow to the jet agitators in the tank to ensure proper mixing within the tank.
Flowmeter
To eliminate the mechanical problems of a turbine flowmeter, we recommend that an electromagnetic flowmeter be used.
These flowmeters have no moving parts to wear out and will provide a more consistent and accurate flow reading. They
can be input into just about any electronic rate controller or switch box.
Boom Section Valves
For rapid response and reliability, we recommend electric plunger valves be used for boom control. The valves should be
sized accordingly to minimize the pressure drop and maximize the flow rate. The boom tubing or hose should be sized
accordingly to ensure that a pressure drop in the lines does not occur, causing inconsistent pressures at the nozzles.
Nozzle Bodies
Nozzle bodies with shut-off check valves are recommended to eliminate dripping from the spray tips when the boom
valves are shut down.
Hooking Up the Hydraulic Motor to the
Tractor Hydraulic System
Hypro Series 9307 hydraulic motor-driven pumps can be mounted on either the tractor or sprayer. When hooking up, make
sure that no dirt or liquid gets into the hydraulic motor. Keep all hydraulic connections clean. Be sure to connect the
hydraulic motor into the system correctly by putting the pressure line to the (IN) Port and return line to the (OUT) Port. For
maximum performance, the hydraulic lines should also be at least 3/4” [19 mm] in size.
Standard spool valves, which are found on all tractor hydraulic systems, may cause potentially damaging high peak pres-
sures in the hydraulic system when closed because of abrupt shut-off of oil flow in both the supply and return lines. When
shutting off the pump, move the selector to the FLOAT position to allow the centrifugal pump to come to a stop gradually.
The 9307CWS Series case drain line should be used from hydraulic motor to tank.
For further information regarding Hypro products, contact your local dealer
or Hypro directly at www.hypropumps.com or by calling 1-800-424-9776.
Installation of Plumbing
1
5
7
4
3
2
6
9
8
10
Centrifugal Plumbing Hook-up
REF. DESCRIPTION
NO.
1 Tank Lid
2 Vent Line #3430-0456
3 Jet Agitator
4 Shut-off Ball Valves
5 Centrifugal Pump
6 Spray Control Console
7 Centrifugal Pump Control
8 Manifold Boom Valve
9 Electromagnetic Flowmeter
10 Compact Jet Turret Nozzle Body

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Start-Up, Operation, and Shutdown
Before Starting the Pump:
Secure the outlet lines before starting the pump. An unsecured line may whip, causing personal injury and/or
property damage.
Check hose for weak or worn condition before each use. Make certain that all connections are tightly secured.
The sound pressure level of the pump is 80 dBA. Observe all safety precautions when operating the pump within close
proximity for extended periods of time by wearing hearing protectors. Extended exposure to elevated sound levels will
result in permanent loss of hearing acuteness, tinnitus, tiredness, stress, and other effects such as loss of balance and
awareness.
Start-Up and Operation:
Open Center Systems - All Models
Adjusting Centrifugal Pump Output
1. Start the tractor. Leave the directional valve in the neutral position and allow hydraulic oil to circulate for approximately
10 to 15 minutes or until adequately warmed.
2. Prime the centrifugal pump with all valves open (See the Installation Instructions and System Configuration Diagram).
3. Close the agitation line valve and keep the control valve and the boom shut-off valve open. Note the spray pressure.
4. Open the agitation line valve until you have desired circulation in the tank. Recheck the spray pressure. If it is too low,
close down the agitation line valve until the desired spray pressure is reached. If the spray pressure is too high, throttle
the centrifugal pump by closing down the control valve.
Closed Center (Load Sensing) - All Models
Many tractors are being introduced with load sensing systems (also referred to as flow and pressure- compensated systems)
which simplify system setup and eliminate many of the problems associated with using the wrong size pump motors on a giv-
en hydraulic system. Usually, any of Hypro’s 9300HMC models may be used on this type of system, provided the hydraulic
system produces sufficient oil flow for the hydraulic motor being used (Refer to the Pump Selection Guide).
This system maintains a constant flow of hydraulic oil for a given pressure drop. The flow is adjustable with a flow control
valve installed in the hydraulic system (such as the Tortoise/Hare control on John Deere tractors). Because this system has
adjustable flow, there is no need to bypass hydraulic oil as in an open center system, or to restrict the flow with orifices as in
a closed center pressure- compensated system.
Adjusting Centrifugal Pump Output
1. Set the tractor hydraulic flow control valve for minimum hydraulic oil flow to the remote outlet (Tortoise position).
2. Start the tractor and allow the hydraulic oil to circulate for approximately 10 to 15 minutes or until adequately warmed.
3. Prime the centrifugal pump with all valves open (See the Installation Instructions and System Configuration Diagram).
4. Close the agitation line valve and open the control valve and the boom shut-off valve.
5. Slowly adjust the tractor hydraulic flow control valve until the desired boom pressure is attained.
6. Open the agitation line valve until sufficient agitation is observed. If spray pressure drops, readjust the tractor hydraulic
flow control valve to restore it to the desired pressure.
Cleaning and Shutdown:
Flush Pump After Use
One of the most common causes for faulty pump performance is gumming or corrosion inside the pump. Flush the pump and
entire system with a solution that will chemically neutralize the liquid pumped. Mix this solution according to the manufactur-
er’s directions. This will dissolve most residue remaining in the pump, leaving the inside of the pump clean for the next use.
To Prevent Corrosion
After cleaning the pump as directed above, flush it with a permanent-type automobile antifreeze (Prestone®, Zerex®, etc.)
containing a rust inhibitor. Use a 50% solution, half antifreeze and half water, or fill the pump with FLUID FILM® and then
drain it. A protective coating of FLUID FILM®will remain on the inner pump surfaces. Save the excess FLUID FILM® for the
next application. Plug the ports to keep out air during storage. For short periods of idleness, noncorrosive liquids may be left
in the pump, but air must be kept out. Plug the ports or the seal port connections.
Commissioning Start-Up, Operation, Shutdown

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Maintenance and Servicing
Cleaning
Disposal
Care of Pump
Your pump will last longer and give best performance when properly taken care of. Proper pump care depends on the
liquid being pumped and when the pump will be used again. After each use, flush pump with a neutralizing solution
for the liquid just pumped. Follow with a clean water rinse. This is especially important for corrosive chemicals. It is
good practice to clean the pump after each use to prevent deposits from forming and damaging the pump. Using an
antifreeze/rust inhibitor not only coats the interior of the pump, but acts as a lubricant as well, keeping valves from
sticking and protecting against any remaining moisture freezing in cold weather. For infrequent use and before long
periods of storage, drain pump thoroughly. Open any drain plugs, remove suction hose from liquid, and blow out pump
with air. An antifreeze/rust inhibitor should be injected into the pump before both ports are plugged and the pump is
stored. Plug all ports to keep out air until pump is used again.
When disposing of a Hypro pump, be sure to remove all fluids from the pump before scrapping. These fluids should be
disposed of in a manner which complies with local and national regulations. Never dump fluids onto the ground. Once
the pump is free of all fluids, it must be scrapped in accordance with local and national laws.
Replacement Parts
The parts illustrations on the following pages show the pumps and their replacement parts. Only genuine Hypro
replacement parts should be used. Failure to follow this warning can result in damage to property, serious injury or
death, and will void your warranty. If the pump malfunctions or is defective, it should be sent back to Hypro for service.
Information
When servicing your pump, you should adhere to the following safety guidelines:
1. Disconnect power supply before servicing.
2. Release all pressure within the system before servicing any component. Flush with water.
3. Always drain and flush pump before servicing or disassembling for any reason.
4. Always drain and flush pumps prior to returning unit to Hypro for repair.
5. Before returning pump for service/repair, drain out all liquids and flush unit with neutralizing liquid. Then drain the
pump. Attach tag or include written notice certifying that this has been done. It is illegal to ship or transport any
hazardous chemicals without United States Environmental Protection Agency Licensing.
6. Never use your hand to check the condition of hydraulic lines or hoses. If hydraulic fluid penetrates the skin, get
medical help immediately. Failure to get proper medical help may result in loss of limb or life. The safest way to
check hydraulic lines or hoses is by holding a piece of cardboard next to the hydraulic line or hose.

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Models 9307C Parts Illustration and Repair Kits
(Includes Models 9307C-GM10, 9307C-GM12, 9307C-GM10-U, & 9307C-GM12-U)
Models 9307C-GM10, 9307C-GM12, 9307C-GM10-U & 9307C-GM12-U
Ref.
No.
Qty.
Req'd
Ref.
No.
Qty.
Req'd
1* 1 0150-9300C
242406-0039 Pipe Plug 13 2 1810-0001 Retaining Ring
312253-0010 Acorn Nut 14 1 0500-9305 Shaft Assembly
412270-0094 Washer 15 1 2007-0063 Ball Bearing
510400-9300S Impeller 16 1 0757-9300C Mounting Flange
611610-0058 Key 17 1 1720-0209 O-Ring
711721-0208 O-Ring 18 1 2300-0040 Plug
812120-0043 Mechanical Seal 19 8 2210-0131 Bolt
910755-9300C Seal Flange 20 2 2210-0026 Bolt
10 1 2270-0093 Slinger 21 1 2500-0036 Hydraulic Motor (GM10)
11 1 1820-0040 Retaining Ring 21 1 2500-0046 Hydraulic Motor (GM12)
*Includes a Stainless Steel Wear Ring and 4 Pipe Plugs (Ref. No. 2)
Part No.
Part No. Description
12 1 2005-0006 Double Row Ball Bearing
Pump Casing
1** 1 0151-9300C
Pump Casing (Universal Flange)
Description
**Used in -U "Universal Flange" models, includes Stainless Steel Wear Ring and 4 Pipe Plugs (Ref. No. 2)
Mechanical Seal Kit #3430-0604
Includes Items 7 & 8
Bearing Kit #3430-0671
Includes Items 10, 11, 12, 13 & 15
Impeller Hardware Kit #3430-0612
Includes Items 3, 4 & 6
Hydraulic Motor Seal Replacement #3430-0611
For seal replacement in Motor #2500-0036 (GM10)
Hydraulic Motor Seal Replacement #3430-0616
For seal replacement in Motor #2500-0046 (GM12)
NOTE: When ordering parts, give
quantity, part number, description and
complete model number. Reference
numbers are used ONLY to identify
parts in the drawing and are NOT to
be used as order numbers.
10
13
15
16
17 18
20
19
21
8
7
6
5
4
3
1
2
9
11
12
14

Model 9307CWS-GM12 Parts Illustration
Ref. Qty. Part
No. Req’d. Number Description
1 1 0151-9300C Pump Casing (Universal Flange)
2 4 2406-0039 Pipe Plug
3 1 2253-0010 Acorn Nut
4 1 2270-0094 Washer
5 1 0401-9307S Impeller
6 1 1610-0058 Key
7 1 1721-0208 O-ring
8 4 2220-0124 Screw
9 1 0751-9307 Front Chamber Plate
10 1 2120-0061 Mechanical Seal
11 1 2535-0012 Membrane
12 1 0752-9307A Back Chamber Plate
13 2 2406-0016 Pipe Plug
14 1 23358 O-ring
15 1 2220-0128 Socket Head Screw
Ref. Qty. Part
No. Req’d. Number Description
16 1 2630-0022 Sight Glass
17 1 0502-9307 Shaft Assembly
18 1 1820-0040 Retaining Ring
19 1 2005-0006 Bearing (dual-layer)
20 1 0757-9300C Mounting Flange
21 8 2210-0131 Bolt
22 1 1720-0209 O-ring
23 1 2300-0040 Plug
24 2 1810-0001 Retaining Ring
25 1 1420-0031 Tone Wheel
26 1 2230-0047 Set Screw
27 1 2007-0063 Bearing
28 1 2500-0123 Hydraulic Motor
29 2 2210-0026 Bolt
30 1 1721-0228 O-ring
1
2
3
9
10
11
12
30
13 14
15
16
17
18
19
20 21
24
23
22
27
28
29
25 26
7
8
4
5
6
NOTE: When ordering parts, give
quantity, part number, description and
complete model number. Reference
numbers are used ONLY to identify
parts in the drawing and are NOT to
be used as order numbers.
- 12 -
Impeller Hardware Kit #3430-0612: Includes Items 3, 4 & 6
Hydraulic Motor Seal Replacement #3430-0616: For seal replacement in Motor #2500-0123 (GM12)
Repair Kit #3430-0813: Includes Items 7, 10, 11, 14, 16, 19, 27, 30 and (parts not shown) #1410-0134 Wear ring, #2160-0096
Wet seal fluid, #3010-0252 Tool-mech. seal, and #3010-0253 Tool-front plate.

- 13 -
Symptom Probable Cause(s) Corrective Action(s)
Low discharge Pump not primed Remove topmost vent plug from face of pump and run
pump to expel trapped air (See Installation Instructions).
Air leak in inlet line Check and reseal inlet fittings.
Blocked or clogged line strainer Inspect strainer and clear any debris from screen.
Impeller plugged Inspect and clear obstruction.
Undersize inlet line or Suction line should be the same diameter as inlet port of
collapsed hose pump or larger.
Improperly sized hydraulic motor Refer to Pump Selection Guide to determine proper size
hydraulic motor for your hydraulic system.
Eye of impeller rubbing on volute Remove volute (front cover) and inspect the impeller.
If wear detected, sand the impeller eye O.D. with emery
cloth.
Hydraulic system Improper hydraulic motor size Refer to Pump Selection Guide to determine proper size for
overheating your hydraulic system.
Insufficient hydraulic hose size Check hydraulic hose size. Hose should be at least 1/2”
[12.7 mm]. For large open-center systems, 3/4” [19.05 mm].
Troubleshooting
If the proper Hydraulic Pump Unit has been selected accord-
ing to Hypro recommendations, and the unit has been cor-
rectly plumbed into the hydraulic system, operation should be
quite satisfactory. If spraying performance is unsatisfactory or
hydraulic system heat is excessive etc., check the following
troubleshooting guide for possible problems and solutions.
Troubleshooting Guide

- 14 -
Pump Housing Disassembly
1. Using a 3/4” wrench, remove the eight Hex Head Bolts
holding the Pump Casing to the Mounting Flange.
Once removed, turn the cover until mounting holes are
exposed. Place a screwdriver on each side of the cover
and pry away the mounting flange (See Figure 1).
2. To remove the Impeller Nut, insert a large screwdriver
or file (at least 10” [254 mm] long) into Impeller Vanes to
prevent Impeller from turning when loosening nut. Use
a 1-1/16” socket wrench to remove the Impeller Nut by
turning it counterclockwise (See Figure 2).
3. Once nut [and washer] is removed, place a screwdriver
on each side behind the Impeller and pry away from the
Mounting Flange (See Figure 3). Remove Key from the
Shaft. Remove O-ring from the Mounting Flange.
2. Lift the seal flange off of the mounting flange. Use
screwdrivers to pry loose, if necessary.
3. Using a screwdriver and hammer, tap out the stationary
portion of the mechanical seal from the motor side of the
seal flange.
The seal will be damaged by removal in this manner. A
new seal must be used when pump is reassembled.
In the case of a severe pump seal leak, inspect the
shaft/bearing assembly for possible contamination.
Clean-Up Of Pump Housing
1. Using a circular bottle-type wire brush with air or hand
drill, clean the outlet port, inlet port and the sealing areas
of the o-ring on the pump casing and seal flange. Using
the port brush, clean the seal cavity in the mounting
flange.
2. After wire brush cleaning, it is recommended that the
pump casing and seal flange be further cleaned in a
solvent tank to remove rust and corrosion particles.
Bearing Removal
1. Using a 9/16” wrench, remove the two motor mounting
bolts. Lift the hydraulic motor from the mounting flange.
2. Remove slinger from shaft. Use a screwdriver to pry
and guide the snap ring out of the mounting flange (See
Figure 5).
Pump Seal Removal
1. Lightly lubricate the shaft for easier removal of the seal.
Using two screwdrivers positioned opposite each other,
pry the rotary portion of the seal from the shaft (See
Figure 4).
Repair Instructions (9307C Series Only)
Figure 1
Figure 2
Figure 3
Figure 4

- 15 -
4. Spread the snap ring by grabbing the open ends and
pulling them apart, like extending a spring. Guide the
retaining ring into the mounting flange using a screwdriver
for assistance (See Figure 8).
5. Install the slinger onto the pump shaft.
6. Using soap and water as a lubricant, install the stationary
half of the mechanical seal into the seal flange. Press it
into place using a rag over the seal face and a 1-3/8”
plastic guide (See Figure 9). Assemble the seal flange
and mechanical seal. Assemble onto the mounting
flange, taking care to avoid hitting the mechanical seal
on the pump shaft.
7. Install the rotary portion of the mechanical seal onto the
pump shaft, using soap and water as a lubricant.
8. Place the impeller, washer and a cover nut onto the
pump shaft. Use medium strength thread locker on the
acorn nut. Torque to 80 ft.-lbs. using a 1-1/16” socket.
9. Install the o-ring in the pump casing, lubricate the o-ring
with soap and water. Place the pump casing on the
mounting flange. Flip the assembly over onto the inlet
part of the pump casing. Install the casing bolts with
medium strength thread locker and torque to 75 ft.-lbs.
using a 3/4” wrench.
10. Apply anti-seize to the hydraulic motor shaft. Place the
hydraulic motor onto the pump assembly. Apply medium
strength thread locker to the motor mounting bolts, torque
to 25 ft.-lbs. using a 9/16” wrench.
3. Set the mounting flange shaft side down in a press to
remove the bearing and shaft assembly (See Figure 6).
4. Support the bearings only in a press to remove from the
shaft. Use a snap ring pliers to remove retaining rings, if
necessary (See Figure 7).
Pump Assembly
1. Assemble the retaining rings to the pump shaft, using a
snap ring pliers.
2. Press the bearings onto the pump shaft using a press.
3. Using a press, install the pump shaft and bearing
assembly into the mounting flange.
Figure 5
Figure 8
Figure 9
Figure 6
Figure 7

- 16 -
Hydraulic Motor Seal
Disassembly Instructions
1. Clamp the motor in a vise with the bolts facing up. Take
caution to avoid damaging the machined surfaces of
the motor. Remove the bolts using a 17 mm wrench.
See Figure 10.
2. Remove the rear cover of the motor. Mark the
balancing plate and body to ensure proper reassembly.
See Figure 11. Remove the balancing plate for seal
replacement. Place the rear cover back on the motor.
3. Remove the motor from the vise and set it on
the rear cover. Remove the front cover. Mark the
balancing plate and body to ensure proper reassembly.
See Figure 11. Remove the balancing plate for seal
replacement. Remove the drive and driven gear.
Inspect all components for worn parts. If non-seal
components are worn, replace motor assembly.
4. Remove snap ring and support ring. Punch shaft seal
out using a screwdriver and soft mallet.
Assembly Instructions
5. Place shaft seal in front cover, spring side down,
followed by the support ring and snap ring.
6. Place rear balancing plate in the body, making sure
there is proper alignment. Place drive gear and driven
gear in the body and rear balancing plate. Set the
front balancing plate over the shafts and into the body.
Thoroughly grease the splines of the drive shaft before
placing the front cover on the body, pressing onto the
guide pins.
7. Rotate the pump and reclamp in a vise. Set the rear
cover over the guide pins. Install bolts and torque to 44
in.-lbs.
Figure 10
Figure 11
Model 2500-0046 Only

- 17 -
Pump Housing Disassembly
1. Pump housing disassembly is the same as the
standard 9307. See the housing disassembly section
for the standard pump to see how the pump housing is
removed.
Pump Seal Removal
1. To remove the seal, first unscrew the four Allen bolts
holding the front chamber plate in place, then lift the
front chamber plate off of the rear chamber plate.
2. After removing the diaphragm, lightly lubricate the shaft
for easier removal of the seal. Using two screwdrivers
positioned opposite each other, pry the front rotary
portion of the seal from the shaft. If the seal can comes
off of the rubber boot, the boot can be removed by
grabbing it with a small nose pliers.
3. Lift the rear chamber plate off of the mounting flange.
Use screwdrivers to pry loose, if necessary. The rear
portion of the mechanical seal will come off when the
rear chamber plate is removed.
When prying off the rear chamber plate with screwdrivers,
be sure to pry evenly or the shaft may become scarred,
reducing the effectiveness of the new seal.
4. Using a screwdriver and hammer, tap out the stationary
portion of the mechanical seal from both the front
chamber plate and the motor side of the rear chamber
plate.
The seal will be damaged by removal. A new seal must be
used when pump is reassembled.
In the case of a severe pump leak, inspect the shaft/
bearing assembly for possible contamination
Clean-Up Of Pump Housing
The process for cleaning up the pump housing is the
same as the standard pump. See the “Clean Up of Pump
Housing” section for further instructions.
Bearing Removal
The bearing removal process for wet seal pumps is
identical to the standard pump. See the “Bearing Removal”
section for the standard pump for detailed instructions.
Pump Assembly
1. Using water as a lubricant, install the stationary halves
of the mechanical seal into the seal flange on the front
and rear chamber plates. Press it into place with your
fingers (See Figure 1 & 2). Then clean the stationary
and rotary portion of the seal.
2. Assemble the rear chamber plate onto the pedestal,
taking care to avoid hitting the mechanical seal on
the pump shaft (Figure 3). The sight glass on the
back chamber plate should be oriented so that it is
positioned at the top of the pump (Figure 4).
Figure 1
Figure 2
Figure 3
Repair Instructions (9307CWS Series Only)

- 18 -
Repair Instructions (9307CWS Series Only) - cont’d.
3. Install the rear rotary portion of the mechanical seal
onto the pump shaft, using the provided seal tool and
water as a lubricant (Figure 5).
4. Place the seal spring onto the rotary portion of the seal
(Figure 6).
5. Install the o-ring into the groove on the rear chamber
plate (Figure 7).
6. Place the membrane into the grooves (Figure 8) on the
seal flange, then place the front chamber plate onto the
shaft. Use the provided tool to push the front chamber
plate so that it is up against the rear chamber plate
(Figure 9). Screw in four Allen bolts while someone
holds the front chamber plate in place with the provided
tool. Torque the bolts to 48 in-lbs.
7. Before installing the impeller, make sure to remove the
tool used to push the front chamber plate. Place the
impeller, washer and acorn nut onto the pump shaft
(Figure 10). Torque to 80 ft-lbs. using a 1-1/16” socket.
Figure 4
Figure 7
Figure 8
Figure 9
Figure 5
Figure 6

- 19 -
8. Install the o-ring in the pump casing; lubricate the
o-ring with soap and water (Figure 11). Place the pump
casing on the mounting flange (Figure 12). Torque
the 8 bolts (Figure 12), which hold the casing to the
mounting flange, to 75 ft-lbs. using a 3/4” wrench.
9. Add Hypro wet seal fluid to the chamber until the fluid
comes to the top mark on the sight glass. Torque the
screw to 45 in-lbs.
Repair Instructions (9307CWS Series Only) - cont’d.
Figure 13
Figure 12
Figure 11
Figure 10

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Hypro/Shurflo (hereafter, “Hypro”) agricultural products are warranted to be free of defects in material and workmanship under normal use
for the time periods listed below, with proof of purchase.
- Pumps: one (1) year from the date of manufacture, or one (1) year of use. This limited warranty will not
exceed two (2) years, in any event.
- Accessories: ninety (90) days of use.
This limited warranty will not apply to products that were improperly installed, misapplied, damaged, altered, or incompatible with fluids or
components not manufactured by Hypro. All warranty considerations are governed by Hypro’s written return policy.
Hypro’s obligation under this limited warranty policy is limited to the repair or replacement of the product. All returns will be tested per
Hypro’s factory criteria. Products found not defective (under the terms of this limited warranty) are subject to charges paid by the returnee
for the testing and packaging of “tested good” non-warranty returns.
No credit or labor allowances will be given for products returned as defective. Warranty replacement will be shipped on a freight allowed
basis. Hypro reserves the right to choose the method of transportation.
This limited warranty is in lieu of all other warranties, expressed or implied, and no other person is authorized to give any other warranty or
assume obligation or liability on Hypro’s behalf. Hypro shall not be liable for any labor, damage or other expense, nor shall Hypro be liable for
any indirect, incidental or consequential damages of any kind incurred by the reason of the use or sale of any defective product.
RETURN PROCEDURES
All products must be flushed of any chemical (ref. OSHA section 1910.1200 (d) (e) (f) (g) (h)) and hazardous chemicals must be labeled/tagged
before being shipped† to Hypro for service or warranty consideration. Hypro reserves the right to request a Material Safety Data Sheet from
the returnee for any pump/product it deems necessary. Hypro reserves the right to “disposition as scrap” products returned which contain
unknown fluids. Hypro reserves the right to charge the returnee for any and all costs incurred for chemical testing, and proper disposal
of components containing unknown fluids. Hypro requests this in order to protect the environment and personnel from the hazards of
handling unknown fluids.
Be prepared to give Hypro full details of the problem, including the model number, date of purchase, and from whom you purchased your
product. Hypro may request additional information, and may require a sketch to illustrate the problem.
Contact the appropriate Hypro Service Department to receive a Return Merchandise Authorization number (RMA#).
Returns are to be shipped with the RMA number clearly marked on the outside of the package. Hypro shall not be liable for freight damage
incurred during shipping. Please package all returns carefully. All products returned for warranty work should be sent shipping charges
prepaid:
LIMITED WARRANTY ON HYPRO/SHURFLO AGRICULTURAL PUMPS & ACCESSORIES
AMERICAS & ALL OTHER REGIONS
Hypro / Pentair
Attention: Service Department
375 Fifth Avenue NW
New Brighton, MN 55112
Service: 800-468-3428
Fax: [phone]
Technical: 800-445-8360
hypro.technicalpentair.com
CANADA
Pentair Water Belgium B.V.B.A
Industriepark Wolfstee
Toekomstlaan 30, 2200
Herentals, Belgium
Tel: [phone]
Fax: [phone]
shur[e-mail]
CENTRAL & SOUTH AMERICA
[phone]
[e-mail]
pentair.com
† Carriers, including U.S.P.S., airlines, UPS, ground freight, etc., require specific identification of any hazardous material being shipped. Failure to do so may result in a substantial fine and/or prison term.
Check with your shipping company for specific instructions.