Fimco 3PT-65-6R-7 User manual

Page 1
www.fimcoindustries.com
1000 FIMCO Lane, P.O. Box 1700, North Sioux City, SD 57049
Toll Free Phone: [phone] : Toll Free Fax: [phone]
[5195642 (12/22)]
Category I
Model: 3PT-65-6R-7 (5303252)
(65 Gallon 3 Point Sprayer w/Pump, Coupler & 7-Nozzle AIXR 0.3 Boom)
OWNER’S MANUAL
BEFORE RETURNING THIS PRODUCT
FOR ANY REASON, PLEASE CALL
1-800-831-0027
MONDAY-FRIDAY, 8:00 AM TO 5:00 PM CST
If you should have a question or experience a problem with
your Fimco Industries Product: Visit our website @
www.fimcoindustries.com or call the Toll free number above. Our
technical support representatives will be happy to help you.
In most cases a customer service rep. can resolve
the problem over the phone.
To obtain prompt, efficient service, always remember to give the
following information....
• Correct Part Description and/or part number
• Model number and Serial Number
Part descriptions and numbers can be obtained from the
illustrated parts list section(s) of this manual.
General Information
Thank you for purchasing this product. The purpose of this
manual is to assist you in operating and maintaining your
3 Point sprayer.
Retain a copy of your receipt for your unit, as it will be required
to validate any warranty service.
Warranted against manufacturer or workmanship defects from
date of purchase with copy of receipt:
Homeowner Usage: One Year
Commercial Usage: 90 Days.
WARNING: Cancer and Reproducve Harm.
www.P65Warnings.ca.gov
WARNING: To reduce the risk of injury, the
user must read and understand the operator’s
manual before using this product.

Page 2
Contents
Technical Specs ......................................................................2Roller Pump Exploded View/Parts List...............................9
Sprayer Contents....................................................................3Roller Pump General Info...................................................9
Assembly Instrucons .......................................................4 - 5 Roller Pump Operaons/Maintenance............................10
Operaon & Calibraon ....................................................6 - 7 Trouble Shoong..............................................................10
Maintenance & Tank Care......................................................7Sprayer Exploded Views............................................11 - 12
Winter Storage .......................................................................8Sprayer Parts List..............................................................12
Pressure Relief Valve Exploded View/Parts List .....................8Boom Exploded View and Parts List.................................13
DirectoValve Exploded View/Parts List ..................................8Sprayer Dimensions .........................................................14
Torque Chain Aachment ......................................................9Warranty ..........................................................................14
Model: 3PT-60-6R-7 (5303252)
(65 Gallon 3 Point Sprayer w/Pump, Coupler & 7-Nozzle AIXR 0.3 Boom)
Technical Specicaons
• 65 Gallon Corrosion-Resistant Polyethylene Tank
• 6 Roller Pump: 9.76 GPM @ 540 RPM
18.2 GPM @ 1000 RPM
• Pistol Grip Handgun W/25’ of Hose
• 7-Nozzle AIXR 0.3 Boom
• Corrosion-Resistant Nylon Nozzles
• Check Valve Strainers, 50 Mesh, 5 PSI
Cauon: When fully lled with water, this sprayer will weigh approx. 700 lbs..
Consult the owner’s manual for your vehicle to verify that you are within it’s load carrying capacity.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~IMPORTANT~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Remove tank lid and be sure the tank is clean and free of any foreign material. Rinse tank out of any tank residue before lling with
water to test.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~IMPORTANT~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It is VERY important to test this sprayer with plain water before actual spraying is aempted. This will enable you to check the
sprayer for leaks without the possibility of losing any expensive chemicals.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~WARNING~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Read and Understand the Owner’s Manual before using this sprayer. Test and use in accordance to
instrucons.
Read and Follow chemical label instrucons and wear protecve gear when lling, using, cleaning and
servicing the sprayer.
Exercise Cauon in vehicle handling when towing/hauling a lled sprayer to avoid loss of control or overturning.
Keep Sprayer and Spray materials away from other people, children and pets.
Do Not Turn on Power to the sprayer, unl ready to spray in order to avoid unintenonal spray release.
Do Not Use on steep slopes. A full sprayer could cause loss of control or overturn sprayer and vehicle.
Always operate up and down a slope, never across the face of a slope.
Keep all movement on slopes slow and gradual. Do not make sudden changes in speed, direcons or turning. Do not start or stop
suddenly when going uphill or downhill.
Stop on level ground, set the parking brake and shut o engine before leaving the operator’s posion for any reason.
Keep all parts in good condion and properly installed. Fix damaged or worn parts immediately.
Cauon should be taken when towing and/or using any sprayer. This sprayer combined with the weight distribuon, turning radius
and speed of vehicle can result in damage to vehicle and/or sprayer or severe injury or death, if not used properly.
Improper use of this sprayer or handling of chemicals could result in serious injury or illness, or could cause damage to the
environment.

Page 3
Bolted 3PT Square Boom Parts Bag (#5282433)
Owner’s
Manual
Tank/Frame/
Plumbing
Pre-Assembly
Tank Lid w/Lanyard
7-Nozzle Boom Assembly
6-Roller Pump (6500C)
& Coupler
Parts Bag (#5282456)
Contents of Carton

Page 4
Assembly Instructions:
Your sprayer has been mostly assembled at the factory.
Remove all parts from the box and follow the instrucons on pages 4 and 5 to complete assembly of this unit.
Step 1
Attach the two boom mounts to the frame, as shown, using (4)
Flanged Hex Bolts and (4) Serrated Flanged Hex Nuts.
Step 2
Unfold the outer boom arms. With the boom springs on top, center the
boom between the boom mounts and secure to the boom mounts with
square u-bolts and hex nuts.
Now, aach the nozzle harness to the boom with the nozzle clamps and the
nozzles to the inside of the fold, poinng down.
Starng with the center cross nozzle of the
nozzle harness, center on the boom. Mount
the nozzles 20” apart.
Place a clamp half over the top of the boom tube and another clamp half be-
low the boom tube, slide the clamp halves together into the groove in the
square part of the nozzle. Secure the clamps to the boom tube.
Loosely slide a hose clamp on to the feeder hose, connect the boom feeder hose to the
hose barb tee on the nozzle harness and secure with the hose clamp.
Step 3
Thread the pressure gauge into the port on
the manifold.
Hand ght should be sucient.
Aach the hose wraps to the side of the tank, as shown,
with 4 screws.
Thread the lid on to the tank, if not already done.

Page 5
Assembly Instructions (Cont.):
Step 4
Install the lower hitch pins into the
bracket li arm. Place these pins
through the holes in the pin plates, slip
the lock washers on and thread the
nuts onto the pin. Tighten securely.
Step 5
Connect the 48” hose to the valve assembly and the 36”
hose to the strainer assembly.
Slip a 3/4” hose clamp on to the 48” hose and with a twisng
moon, aach the end to the valve assembly and ghten
hose clamp to secure. Now slip a 3/4” hose clamp on to the
36” hose and with a twisng moon, aach the end to the
strainer assembly and ghten hose clamp to secure.
Step 6
Using a good quality thread sealant, thread the 3/4” ngs into the inlet (IN) side and to
the outlet (OUT) side of the pump. Slip a 3/4” hose clamp on the hose coming from the
strainer and with a twisng moon, aach the end of the hose to the ng on the inlet
side of the pump. Slip a 3/4” hose clamp onto the hose coming from the valve assembly
and with a twisng moon, aach the hose to the output side of the pump, ghten both
hose clamps.
The roller pump IS included with the assembly. Aach the adapter, the torque chain and
S-hook to the pump as needed. It is intended for your pump to be mounted directly to
the tractor PTO. The torque chain needs to be secured to the tractor to keep your pump
from spinning.
• Make sure ALL hose clamps are ght before tesng or spraying for the rst me.
• The drain plug assembly should already be aached to the tank
**The Sprayer is now ready to TEST w/plain water before actual use**
Pump Inlet
Outlet to Valve Assembly

Page 6
Informaon About the Sprayer
Roller pumps are posive displacement pumps, which means that the enre soluon being pumped must go somewhere or the
pump will break. In this roller pumping system, soluon is drawn from the tank and forced to a planned source, such as boom
nozzles or handgun. The pressure is controlled by a pressure relief valve, which is a spring-loaded device that controls the amount
of uid bypassed (recirculated) to the tank. The gray handle is to be ghtened to increase pressure and loosened to decrease
pressure. The ‘directo-valve’ is the on/o control which allows the operator to manually control the soluon going to the boom.
Tesng the Sprayer
Aach the sprayer to the tractor 3 point hitch. Mount the pump to the PTO and ax the torque chain. Open the tank lid and be
sure the tank is clean and free of foreign material.
NOTE: It is VERY important to test the sprayer with plain water before actual spraying is aempted. This will enable you to check
for leaks without the possibility of losing any expensive chemicals.
Fill the tank about 1/2 full with plain water.
Before starng, open the sucon line valve (located underneath the
carrier frame), turn the relief valve handle out to lower the line pressure.
This will help prime the pump.
CAUTION:
Always be sure that the water (or soluon) has reached the pump before starng your sprayer. If the pump is allowed to run dry,
serious damage to the pump will result.
Always have the pressure line open to the ps so that the air which may be trapped in the line will be forced (or purged) out.
Start the tractor PTO. Check the enre system for leaks. Once the pump is primed, the pressure may be increased by turning the
handle of the pressure relief valve in. Keep the pressure line open to the ps when seng the pressure. Set the pressure and then
lock the relief valve handle in place. Shut o the directo-valve and check for leaks again. Pressure will increase when the pressure
line valve is closed and then return to the preset pressure when the valve is opened again.
During the tesng period, be sure to observe the spray paern given by the spray nozzles. If there is any paern distoron, it will
be necessary to remove and clean the aected ps.
Cauon: Never use a metal object or other sharp item for cleaning a nozzle p. It is beer to use a nozzle brush (NOT wire brush)
or compressed air for p cleaning.
Condions of weather and terrain must be considered when seng the sprayer. Do not spray on windy days. Protecve clothing
must be worn in some cases
Be sure to read the chemical label(s) before applicaon!
Operaon & Calibraon
The performance of any agricultural chemical depends upon the proper applicaon.
The ps supplied as standard with the sprayer can be used for a wide variety of spraying applicaons. Other p sizes are available
for dierent coverages. The speed and pressure charts shown indicate the rates can be changed considerably by changing speed
and pressure. The nozzles on the boom will spray a 140” wide swath. The proper nozzle height is a minimum of 16”-18” above the
object being sprayed. The pumping system draws soluon from the tank through the strainer/lter and to the pump. The pump
forces the soluon under pressure to the handgun and/or boom nozzles.
• Acvate the handgun by squeezing the handle lever
• Rotang adjustable nozzle p on the handgun will change the p paern from a straight stream to a cone paern (ne mist)
WARNING: Some chemicals will damage the pump valves if allowed to soak untreated for a length of me! ALWAYS ush the
pump as instructed aer each use. DO NOT allow chemicals to sit in the pump for extended mes of idleness. Follow the chemical
manufacturer’s instrucons on disposal of all waste water from the sprayer.
When you are ready to spray, mix chemicals as follows. Add the proper amount of water to the tank. Run the sprayer while adding
chemical to the water.
Only ll the tank with what you’re going to spray in a day, never leave chemicals sit in tank.
Do NOT spray through the boom at this me. This will allow the soluon to return (‘bypass’) to the tank. The movement of soluon
through the bypass will aid in mixing the water and chemicals. If this water movement is not enough to keep the chemical in
suspension, it may be necessary to add an oponal agitator kit. You should now be ready to spray.

Page 7
Four things must be considered before spraying with the boom.
 How much chemical must be mixed in the tank.
 Rate of spray (gallons per acre to be sprayed).
 What pressure (p.s.i.) will be used.
 Speed traveled (mph) while spraying.
 Refer to the chemical label to determine your chemical mixture
 See the p chart to determine the pressure to be used. The chart will also show the speed used when spraying.
Chemical labels may show applicaon rates in gallons per acre, gallons per 1000 square feet or gallons per 100 square feet. You will
note that the p chart shows 2 of these rang systems.
Once you know how much you are going to spray, then determine (from the p chart) the spraying pressure (PSI), and the spraying
speed (MPH). The pressure can be set by running the sprayer with the boom nozzles ‘on’ and then adjusng the relief valve unl
the gauge reads the desired pressure. Noce that the pressure will go up when the boom line is shut o. This is normal and the
pressure will return as before when you open the boom line. When selecng pressure from the p chart, it is a good idea to try for
the 20 or 30 p.s.i. range as this allows an excellent nozzle paern. Spraying at 10 p.s.i. begins to break up the paern and at 40
p.s.i. you may noce some dri.
Determining the proper speed of the pulling vehicle can be done by marking o 100, 200 & 300 feet. The speed chart indicates the
number of seconds it takes to travel the distances. Set the throle and with a running start, travel the distances. Adjust the throle
unl you travel the distances in the number of seconds indicated by the speed chart. Once you have reached the throle seng
needed, mark the throle locaon so you can stop and go again, returning to the same speed.
Add water and proper amount of chemical to the tank and drive to the starng place for spraying.
Only ll the tank with what you’re going to spray in a day, never leave chemicals sit in tank.
Tank Care & Maintenance
Warning: Do not use the tank as a container for fuel oils, kerosene, gasoline or any other petroleum disllate product. All polyole-
ns are soened and permeated by such products. In an enclosed area the vaporizaon of these materials from the outside sur-
face of the tank could create a dangerous condion.
Tank should not be used as a pressure vessel nor used with chemicals or soluons having a weight of more than 12 lbs. per gallon.
Store the tank in a dry dark place when not in use. Storage out of sunlight will prolong the life of the tank.
Do not drop, strike or kick the tank, especially at low temperatures. Tanks become brile and are subject to cracking at tempera-
tures below 20° Fahrenheit.
Always ush the tank with water and a neutralizing agent at the end of each use, to prevent contaminaon of soluons.
Maintenance During/Aer Spraying
Periodically close the sucon line valve and check the strainer and clean the screen. Always ush the enre plumbing system with
water or a neutralizing agent aer compleng the spraying operaon.
Proper care and maintenance will prolong the life of your sprayer.
Aer use, ll the sprayer tank part way with water. Start the sprayer and allow the clear water to be pumped through the plumbing
system and out through the spray nozzles. Rell the tank about half full with plain water and use FIMCO Tank Neutralizer and
Cleaner and repeat cleaning instrucons above. Flush the enre sprayer with the neutralizing/cleaning agent, then ush out one
more me with plain water. Follow the chemical manufacturer’s disposal instrucons of all wash or rinsing water. For the boom (if
applicable) remove the ps and screens from the nozzle assemblies. Wash these items out thoroughly. Blow the orice clean and
dry. If the orice remains clogged, clean it with a ne bristle (NOT WIRE) brush or with a toothpick. Do not damage the orice. Wa-
ter rinse and dry the ps before storing.
WARNING: Some chemicals will damage the pump valves if allowed to soak untreated for a length of me! ALWAYS ush the
pump as instructed aer each use. DO NOT allow chemicals to sit in the pump for extended mes of idleness. Follow the chemical
manufacturer’s instrucons on disposal of all waste water from the sprayer.
Speed in M.P.H.
(Miles Per Hour)
100 Ft. 200 Ft. 300 Ft.
1.0 68 sec. 136 205
2.0 34 68 102
3.0 23 45 68
4.0 17 34 51
5.0 14 27 41
6.0 11 23 34
7.0 9.7 19 29
8.0 8.5 17 26
9.0 7.6 15 23
10.0 6.8 14 20
Speed Chart
Time Required in seconds to travel a distance of
Pressure
(psi)
Capacity
(GPM)
1
MPH
2
MPH
3
MPH
4
MPH
5
MPH
6
MPH
8
MPH
15 .18 53.6 26.8 17.8 13.4 10.7 8.9 6.7
20 .21 62.4 31.2 20.8 15.6 12.5 10.4 7.8
30 .26 77.2 38.6 25.8 19.3 15.4 12.9 9.7
40 .30 88.0 44.0 29.8 22.0 17.8 14.9 11.1
15 .18 .61 .41 .31 .24
20 .21 .71 .48 .36 .29
30 .26 .88 .59 .44 .35
40 .30 1.0 .68 .51 .41
Gallons Per
Acre
Based on Water
Gallons Per
1000 Sq. Ft.
Based on Water
AIXR11003VP Spray Tip Rate Chart (20" Spacing)

Page 8
Ref. # Fimco # Mfg. Part # Description
1 CP23121-PP CP23121-PP Poly Body (3/4" NPT)
2 CP23128-PP CP23128-PP Poly Body (1/2" NPT)
35102022 F14 Pipe Plug, 1/4" MNPT
4* * CP23126-302SS Retaining Pin
5♦ ♦ CP23125-PP Guide Seat
6* * CP23127-302SS Spring
7* * CP7717-15-EPR O-Ring, EPDM Rubber
8♦ ♦ CP23124-PP Spring Retainer
95110266 CP23123-PP Lock Ring
10 5046270 CP23122-NY Adjusting Cap, Nylon (Gray)
* * Available only in Repair Kit
♦ ♦: Only Available in Complete Assembly
Ref. # Fimco # Mfg. Part # Description Qty.
15002476 CP36303-PP Poly Body (AA6B) 1
2♦ ♦ CP36307-PPB Washer 2
3* * CP38726-VI Shut-Off Washer, Viton 1
4♦ ♦ CP36306-302SS Spring 1
5♦ ♦ CP36304-SS Stem 1
6* * CP7717-2/108-VI O-Ring, Viton 1
7* * CP7717-2/209-VI O-Ring, Viton 1
85086043 CP36302-PP Poly Body Insert (Black) 1
95078178 CP36301-NY Handle (Gray) 1
10 5101220 CP36308-SS Groove Pin 1
11 ♦ ♦ CP36309-302SS Retaining Clip 1
12 5102022 F14 Pipe Plug, 1/4" MNPT 1
13 5117281 CP38725-SS
#10-24 x 5/16" Phillips
Truss Head Machine Screw
1
* * Available only in Repair Kit
♦ ♦: Only Available in Complete Assembly
‘Directo Valve’ - Manually Operated Control Valve
• Corrosion Resistant Materials: Weed Parts Polypropylene, 316SS and Polyethylene
• Maximum Pressure = 150 p.s.i.
• Large Capacity - 12.5 G.P.M. @ 5 p.s.i. Pressure Drop
• 3/4” NPT (F) Inlet Connecon
• 1/2” NPT (F) Spray Line Connecon
• 3/4” NPT (F) Connuous By-Pass Connecon
• Valves may be connected w/close nipples for mulple secon spray
control
Fimco # Mfg. Part #
5143316 AA6B
5168718 PK-AB6B-KIT
Description
Directo-Valve (AA6B)
Repair Kit, Items Marked * *
Piston Type Pressure Relief/Regulang Valves
Bypasses excess uid. Adjustable to maintain control of line pressure at any pressure within the valve operang range.
Selected pressure seng rmly held in place by locknut. Extra large passages to handle large ows.
• Polypropylene with stainless steel spring
• Excellent chemical resistance
• EPDM O-Rings
• Fore pressure to 150 p.s.i.
• 1/4” port for pressure gauge
• 3/4” NPT (M) inlet & (F) outlet connecons
Winter Storage
Drain all water out of your sprayer, paying special aenon to the pump, handgun and valve(s). These items are especially prone to
damage from chemicals and freezing weather.
The sprayer should be winterized before storage by pumping a soluon of automove anfreeze (containing a rust inhibitor)
through the enre plumbing system. This anfreeze soluon should remain in the plumbing system during the winter months.
When spring me comes and you are preparing your sprayer for the spray season, rinse the enre plumbing system out, clearing
the lines of the anfreeze soluon. Proper care and maintenance will prolong the life of your sprayer.

Page 9
Torque Chain Aachment to a Roller Pump
A torque chain, ‘S’ hook, nut and bolt are included in this assembly to secure your pump during operaon.
1. Aach one end of the torque chain over the threaded stem of the bolt.
2. Thread the whiz nut onto the bolt. Hand-ghten.
3. Thread the bolt, chain and nut ‘pre-assembly’ into the thread-
ed hole on the underside of the pump. Tighten suciently.
4. Ax the ‘S’ Hook to your frame (or hitch). Wrap the chain
around the frame or hitch and ‘S-Hook’ it in place. Make sure
this connecon is very secure! Not having a good, ght con-
necon may result in the pump spinning on your PTO sha
and damaging some components of your sprayer.
*** Insure that this connecon point will not allow the roller pump to spin on the PTO sha ***
Cast Iron 6-Roller Pump Assembly
#5271706 (Hypro Part #6500C)
1. Use a pressure relief device on the discharge side
of the pump to prevent damage from pressure
buildup when the pump discharge is blocked or
otherwise closed and the power source is still run-
ning.
2. WARNING: Never pump flammable or explosive
fluids such as gasoline, fuel oil, kerosene, etc. Nev-
er use in explosive atmospheres. The pump should
be used only with liquids compatible with the pump
component materials. Failure to follow this warning
can result in personal injury and/or property dam-
age and will void the product warranty.
3. Never pump acids (i.e. acid fertilizer) with Super
Rollers!
4. Never run the pump faster than maximum recom-
mended speed.
5. Never pump at pressures higher than the maximum
recommended pressure.
6. Never pump liquids at temperatures higher than the
recommended maximum temperatures (140°F/60°
C).
Roller Pump General Safety Informaon
7. Make certain that the power source conforms to
the requirements of your equipment.
8. Provide adequate protection in guarding around
the moving parts such as the shaft and pulleys.
9. Disconnect power before servicing.
10. Release all pressure within the system before ser-
vicing any component.
11. Drain all liquids from the system before servicing
any component.
12. Check all hoses for weak or worn condition before
each use. Make certain that all connections are
tight and secure.
13. Periodically inspect the pump and the system com-
ponents. Perform routine maintenance as required.
14. Never operate a gasoline engine in an enclosed
area. Be sure the area is well ventilated.
15. Use only pipe, hose and fittings rated for the maxi-
mum psi rating of the pump.
16. Never use pump for pumping water or other liquids
for human or animal consumption.
* * = Only Available in Repair Parts Kit #7771795 (3430-0380)
Consists of Rollers, O-Ring & Viton Seals
♦♦ = ONLY Available in Complete Assembly

Page 10
WARNING: Never pump corrosive or abrasive liquids
as these will cause rapid wear or deterioration of the
body, rotor, shaft and seals in the pump. The pump
should be used on with liquids compatible with pump
component materials. Never exceed maximum speci-
fied rpm and pressure. Never run pump dry. Failure to
follow this warning will void the product warranty.
Priming the Pump:
To help prime the pump, keep the inlet or suction line
as short as possible with a minimum of bends, elbows
and kinks. Make sure all connections are tight and do
not leak air. Make sure line strainer is free of debris. If
pump does not self-prime, disconnect suction hose, fill
with water and reconnect to liquid source. Often a
squirt of oil into the ports of the pump will seal clear-
ance and help priming.
Care of the Pump:
Proper care and maintenance will keep your pump
wear at a minimum and will keep it running smoothly
and trouble-free for a long time.
Roller Pump Operaon & Maintenance
Flush the Pump After Each Use
One of the common causes of faulty pump perfor-
mance is “gumming” or corrosion inside the pump.
This prevents rollers from moving freely in their
rotor slots. Flush the pump with a solution that will
neutralize liquid pumped, mix according to manu-
facturer’s directions.
To Prevent Corrosion:
After cleaning pump as above, flush it with a 50-50 so-
lution of permanent-type automotive antifreeze
(containing a rust inhibitor) and water. A rust inhibitor
can also be squirted into the ports of the pump. Turn
shaft several times to draw protective liquid through
pump and coat entire inner surface. Drain pump and
plug ports to keep out air during storage. For short peri-
ods of idleness, noncorrosive liquids may be left in the
pump, but air must be kept out. Plug ports or seal port
connections.
Symptom Probable Cause(s) Corrective Action
Leak in suction line Check hose and fittings for leaks and correct
Obstruction in suction line Inspect hose for debris or loose inner liner in hose
Suction strainer clogged Clean strainer
Suction hose sucked to
bottom or side of tank
Cut a notch or "V" in end of suction hose
Air lock in pump Run pump with discharge hose removed to clear air lock
Pump worn Replace or repair pump
Rollers stuck in pump Disassemble pump and inspect rollers
Pump seals worn, leaking air Replace seals
Clogged suction strainer Check strainer and clean it regularly
Kinked or blocked suction hose Inspect suction hose and repair as necessary
Air leak in inlet side plumbing
Check hose and connections for leaks
Use pipe joint sealant and retighten connections
Relief valve setting too low
or weakened spring
Check relief valve and correct setting
Faulty Gauge Replace gauge
Pump seals leak air Replace seals
Nozzle orifices worn Replace nozzles
Pump worn Repair pump
Suction line has air leak Tighten all fittings and hoses between pump and tank
Debris in valve or gauge Remove and clean parts
Kinked or blocked suction hose Remove suction line and clean-check tank and strainer
Air leak in suction hose Tighten all fittings - replace hose if necessary
Suction hose collapsed Replace hose
Pump is sucking air or air has not
been evacuated from strainer
Make sure suction hose is tightly secured. Run pump with
discharge hose removed to remove air lock from pump
Corrosion (rust), scale or residue
Loosen endplate bolts. Squirt oil into ports to help free rotor.
Retighten bolts.
Solid object lodged in pump. Disassemble pump and remove objects
Pump Leaks Worn out seal Replace seal
Loose coupler or damaged shaft Inspect shaft and tighten coupler
Excessive PTO or engine speed Reduce PTO or engine speed
Rotor or internal problem Replace rotor or pump
Partially clogged strainer Clean strainer
Air leak in suction hose Inspect suction hose - replace if necessary
Debris in suction line Clear debris
Hose kinked Straighten or replace hose if necessary
Worn rollers Replace rollers
Strainer clogged Clean strainer
Nozzle size may be too small or
clogged
Clean nozzles - replace nozzles if necessary
Inlet line too small or blocked Clear blockage and if necessary replace hose
By-pass open too much Close slightly
Troubleshooting
Pump Does Not Prime
Loss of Pressure
Pump will not turn
Excessive Vibration or
Noisy Pump
Pump Runs, but Low
Pressure
Pump Pressure Good,
but Low Output
Through Nozzles
Erratic Pressure
Gauge Fluctuates
Excessively