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Information About the Sprayer 

Roller  pumps  are  positive  displacement  pumps,  which  means  that 

the  entire  solution  being  pumped  must  go  somewhere  or  the  pump 

will  break. In  this  roller  pumping system,  solution  is  drawn  from  the 

tank and forced to a planned source, such as boom nozzles or hand-

gun. The pressure is controlled by a pressure relief valve, which is a 

spring-loaded  device  that  controls  the  amount  of  fluid  bypassed 

(recirculated)  to  the  tank.  The  gray  handle  is  to  be  tightened  to  in-

crease pressure and loosened to decrease pressure. 

The  ‘directo-valve’  is  the  on/off control  which  allows  the  operator  to 

manually control the solution going to the boom. 

 

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 filling with water to test. 

 

Testing the Sprayer 

Attach the sprayer to the tractor 3 point hitch. Mount the pump to the 

PTO and affix the torque chain. 

 

NOTE: 

It is important for to test your sprayer with plain water before 

actual spraying is attempted. This will enable you to familiarize  

yourself and check for leaks without the possibility of losing any  

expensive chemicals.

 

 

Fill the tank about 1/2 full with plain water. 

Before starting, open the suction 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 solution) has reached 

the pump before starting 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 tips so that the air which 

may be trapped in the line will be forced (or purged) out. 

 

Start the tractor PTO. Check the entire system for leaks. Once the 

pump is primed, the pressure may be increased by turning the han-

dle of the pressure relief valve in. Keep the pressure line open to the 

tips when setting the pressure. Set the pressure and then lock the 

relief valve handle in place. Shut off 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 testing period, be sure to observe the spray pattern given 

by the spray nozzles. If there is any pattern distortion, it will be  

necessary to remove and clean the affected tips. 

 

Caution: 

Never use a metal object or other sharp item for cleaning a 

nozzle tip. It is better to use a nozzle brush (NOT wire brush) or  

compressed air for tip cleaning.

 

 

Conditions of weather and terrain must be considered when setting 

the sprayer. Do not spray on windy days. Protective clothing must be 

worn in some cases

 

 

Be sure to read the chemical label(s) before application! 

 

Operation 

The performance of any agricultural chemical depends upon the 

proper application. 

 

Always fill the tank with a desired amount of water first and then add 

the chemical slowly, mixing as you pour the chemical into the tank. 

You may use the handgun to spraying into the solution in order to 

mix the chemical and water.  

 

The speed and pressure charts shown indicate the rates can be 

changed considerably by changing speed and pressure. The pump-

ing system draws solution from the tank through the strainer/filter and 

to the pump. The pump forces the solution under pressure to the 

boom nozzles. 

 

Rotating the adjustable nozzle tip on the handgun will change 
the tip pattern from a straight stream to a cone pattern (fine 

mist)

 

 

Calibration 

Chemical labels may show application rates in gallons per acre, gal-

lons per 1000 square feet or gallons per 100 square feet. You will 

note that the tip chart shows 2 of these rating systems. Once you 

know how much you are going to spray, then determine (from the tip 

chart) the spraying pressure (PSI), and the spraying speed (MPH). 

Determining the proper speed of the pulling vehicle can be done by 

marking off 100, 200 & 300 feet. The speed chart indicates the num-

ber of seconds it takes to travel the distances. Set the throttle and 

with a running start, travel the distances. Adjust the throttle until you 

travel the distances in the number of seconds indicated by the speed 

chart. Once you have reached the throttle setting needed, mark the 

throttle location 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 

starting place for spraying. 

Using the Boom Nozzles 

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 tip chart to determine the pressure to be used. The 
chart will also show the speed used when spraying. 

 

Start the pump and open the valve to the boom nozzles. 

 

Check the spray pattern. Usually you can see the coverage 
better on a solid concrete surface, such as a driveway. 

 

Spraying Solutions Other Than Water 

Since all the tabulations are based on spraying water, which weighs 

8.34 lbs. per USA gallon, conversion factors must be used when 

spraying solutions which are heavier or lighter than water. To deter-

mine the proper size nozzle for the solution to be sprayed, first multi-

ply the desired GPM or GPA of solution by the rate conversion factor. 

Then use the new converted GPM or GPA rate to select the proper 

size nozzle. 

 

Example: 

Desired application rate is 20 GPA of 28% Nitrogen.  

Determine the correct nozzle size as follows: 

GPA (Solution) x Conversion Factor = GPA 

20 GPA (28%) x 1.13 + 22.6 GPA (Water) 

The applicator should choose a nozzle size that will supply 22.6 GPA 

of water at the desired pressure. 

 

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

Weight of Solution

Specific

Gravity

Conversion

Factors

7.0 lbs. per gallon

.84

.92

8.0 lbs. per gallon

.96

.98

8.345 lbs. per gallon 
(Water)

1.00

1.00

9.0 lbs. per gallon

1.08

1.04

10.0 lbs. per gallon

1.20

1.10

10.66 lbs. per gallon 
(28% Nitrogen)

1.28

1.13

11.0 lbs. per gallon

1.32

1.15

12.0 lbs. per gallon

1.44

1.20

14.0 lbs. per gallon

1.68

1.30

Summary of Contents for 300-3PT-BL

Page 1: ...ays 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 r...

Page 2: ... a 3 4 hose clamp onto the 3 4 hose coming off the valve assembly and with a twisting motion attach the 3 4 hose to the output side of the pump and securing with the hose clamp 5 The roller pump IS included with the assembly Attach 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 secure...

Page 3: ...d height and lock in place with the handle screw 3 Slip the two 1 2 hose clamps on to the feeder hoses coming from the valve assembly With a twisting motion slide the feed er hoses all the way on to the hose barbs and secure with hose clamps 4 Thread the QJ Diaphragm Check Valve 1 4 MNPT into the reducer bushing on the elbow 5 Insert the blue 50 mesh nozzle check valve strainer 6 Attach the extend...

Page 4: ...chemical and water The speed and pressure charts shown indicate the rates can be changed considerably by changing speed and pressure The pump ing system draws solution from the tank through the strainer filter and to the pump The pump forces the solution under pressure to the boom nozzles Rotating the adjustable nozzle tip on the handgun will change the tip pattern from a straight stream to a cone...

Page 5: ... 20 5 159 0 127 0 106 0 91 0 79 0 63 0 53 0 45 0 40 0 35 0 32 0 7 3 4 9 3 6 2 9 30 18 6 115 0 92 0 77 0 66 0 58 0 46 0 38 0 33 0 29 0 26 0 23 0 5 3 3 5 2 6 2 1 40 21 5 133 0 106 0 89 0 76 0 67 0 53 0 44 0 38 0 33 0 30 0 27 0 6 1 4 1 3 1 2 4 50 24 0 149 0 119 0 99 0 85 0 74 0 59 0 50 0 42 0 37 0 33 0 30 0 6 8 4 5 3 4 2 7 60 26 3 163 0 130 0 108 0 93 0 81 0 65 0 54 0 46 0 41 0 36 0 33 0 7 5 5 0 3 7 ...

Page 6: ...rk 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 brittle and are subject to cracking at temperatures below 20 Fahrenheit Always flush the tank with water and a neutralizing agent such as Nutra Sol at the end of each use to prevent contamination of solu tions Maintenance During After Sp...

Page 7: ...T Description Directo Valve AA6B Repair Kit Items Marked Piston Type Pressure Relief Regulating Valves Bypasses excess fluid Adjustable to maintain control of line pressure at any pressure within the valve operating range Selected pressure setting firmly held in place by locknut Extra large passages to handle large flows Polypropylene with stainless steel spring Excellent chemical resistance EPDM ...

Page 8: ...Page 8 See Detail B Exploded View 300 3PT BL 5303087 Refer to the parts list next page for part numbers Detail A Detail B Detail C See Detail C IN to Pump See Detail A OUT to Valves ...

Page 9: ...Page 9 Parts List 300 3PT BL 5303087 Hose to RH BoomBuster Hose to LH BoomBuster Hose to Valve from Pump Handgun Hose Hose to Agitator Hose to Bypass Plumbing Detail Available ONLY in complete assembly ...

Page 10: ...e Blue 3 16 Orifice White 1 4 Orifice Color Coded Nozzle Inserts Operation As solution is forced through the agitator the venturi action triples the flow through the agitator The valve in the line may shut off the agitation completely when not needed or it can throttle the amount of solution going to the agitator if too much agitation occurs Orifice Color Orifice P S I Inlet Flow G P M Outlet Flow...

Page 11: ...lbows 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 clearance and help priming Care of the Pump Proper care and maintenance will keep your pump wear at a minimum and will keep it r...

Page 12: ...ited Warranty you must 1 provide written notice to Fimco Inc of the defect during the Warranty Period and within thirty 30 days after the defect becomes apparent or the repair becomes necessary at the following address Fimco Inc 1000 Fimco Lane North Sioux City SD 57049 and 2 make the Equipment available to Fimco Inc or an authorized dealer within a reasonable period of time For more information a...

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