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Installation, operation and
maintenance instructions
Injector pump for chemicals and fertilizers
Model - 4-01
(300000-000011)
This document describes the installation, operation and maintenance of the model 4-01 fertilizer pumps
manufactured by Amiad Water Systems Ltd.
04.2025/ 910101-001403
Installation, operation and maintenance instructions
Injection pump for chemicals and fertilizers – 4-01
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Table of Contents
Summary of Contents for amiad 4-01
- Page 1 Injector pump for chemicals and fertilizers Model - 4-01 (300000-000011) This document describes the installation, operation and maintenance of the model 4-01 fertilizer pumps manufactured by Amiad Water Systems Ltd. 04.2025/ 910101-001403 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01...
- Page 2 This document does not replace any certified drawing, procedure or information provided by Amiad in reference to a specific customer, site or project . Amiad assumes that all users understand risks involved within this file and/or its attached materials. This document is given in good faith and is not intended to impose any obligation to Amiad.
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Page 3: Table Of Contents
Installation of regulator and filter - Figure 8........................ 19 Exploded-view diagram of pump parts - Figure9 ......................20 4-01 pump assembly - Figure 10 ..........................22 Operating water filter assembly - Figure 11 ........................ 23 Operating water hose assembly - Figure 12 ........................ 24 Suction from tank assembly - Figure 13........................ -
Page 4: Technical Data
Seals in contact with water only Nitrile rubber, polyurethane Graph of fertilizer injection rate as a function of water line pressure Fertilizer injection rate graph - Figure 1 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 5: Safety Instructions
• The pump should only be used for its original intended purpose as designed by Amiad. Any misuse of the pump, or incorrect connection, may lead to undesired damage and may affect your warranty coverage. Please consult with Amiad prior to any non-regular use of this equipment. - Page 6 • In order to achieve optimal system performance, it is imperative to perform the initial operation process exactly as described in this document. Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01...
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Page 7: Operation And Control
Description and features General description The Amiad Model 4-01 fertilizer pump presented in this user manual, is designed to inject liquid fertilizer and chemicals in a controlled manner into irrigation lines during the irrigation, thus making fertilization of the field, orchard or greenhouse simple and easy while greatly reducing the amount of work invested in it. -
Page 8: Key Features
Models The pump described in this document, Model 4-01 Cat. No. 300000-000011 is designed for suction from the bottom of a fertilizer tank. The pump has a suction head that is inserted into the fertilizer tank and fixed inside the tank at the desired height. -
Page 9: The Operating Principle Of The Pump
19. Linear motor 20. Cylinder body 21. Breather valve opening 22. Control hose for automatic switch 23. Reversal disc 24. Injection valve spring Operating principle Figure 2 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 10: Installation
40 mm pipe, to prevent back-pressure resistance to the pump. Installation of a model 4-01 pump for suction from deep in the tank Before installing this model of fertilizer pump, ensure that all the actions indicated above in the "Preparation for installation"... - Page 11 4.2. The operating water flow stops. The pump can be turned off manually by pressing the on/off button on the automatic switch (4). Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01...
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Page 12: Control, Adjustment, And Monitoring
The fertilizer flow will be 100 liters per hour. Dosing In a model 4-01 pump suctioning from the tank bottom, fill the fertilizer tank with the required amount or hang the suction head at an appropriate height. When the fertilizer level drops to the bottom of the suction head, the pump's water supply automatically stops. -
Page 13: Maintenance
Pumping these particles into the pump will cause the erosion of the pump seal and the cylinder body. • Lubrication - see instructions on the next page. Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 14: Lubricating The Pump
9. Screw the cylinder housing cover (14) into place and connect the discharge water pipe to the pump. The pump is ready for operation. Opening the cylinder housing cover Injection Suction Opening the cylinder housing cover – Figure 4 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 15: Pump Motor - Figure 5
It is important to thoroughly dry all places to be lubricated, otherwise the grease will not stick and will quickly be washed away. • Note: use MOLYKOTE PG-21 grease, which is approved by Amiad. Schematic diagram - pump motor Pump motor - Figure 5 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers –... -
Page 16: Annual Maintenance
It prevents unexpected malfunctions and reduces the need for urgent and expensive repairs. 5. Saving time and money: It Saves time and money in the long run by preventing malfunctions and prolonging the life span of the pump. Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 17: Flow Regulators
Below is a schematic drawing of an assembly of regulators and filter → Fertilizer flow direction Assembly of regulators - Figure 6 Warning: Plastic joints should not be closed by force. Tightening by hand force is sufficient. Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 18: Installation Of Regulator - Figure 7
2. A filter must be installed upstream of the flow regulator. Installation of flow regulator in model 4-01 fertilizer pump The location of the regulator assembly is at the end of the fertilizer injection pipe at the connection to the irrigation line. -
Page 19: Installation Of Regulator And Filter - Figure 8
4. Connect the injection pipe with the filter to the irrigation line by screwing the Raccord nut on the filter into the Raccord fitting with the regulator which are on the line (4). Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 20: Description Of Pump Parts
Description of pump parts Exploded-view diagram of pump parts - Figure 9 Exploded-view diagram of pump parts - Figure9 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 21: Parts List - Pump
Operating water filter 4-01/4-02/4-92 Miscellaneous 700190-003296 Operating water hose assembly 4-01, 3/8" Miscellaneous 700190-003300 Hose for automatic air vent 700190-003321 End fitting 700194-000135 Annual maintenance kit 700190-006733 Anti-vacuum (option) Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 22: Assemblies
700190-005784 Injection valve assembly with spring 4-01 700190-003255 16 mm integrated coupler 700190-005782 Suction valve assembly 700190-003256 20 mm integrated coupler 4-01 pump assembly - Figure 10 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 23: Operating Water Filter Assembly - Figure 11
3/4" polyester cylinder 100 micron 710101-000452 3/4" closed cover PP gray 700190-003256 20 mm integrated coupler 700190-003257 Union nipple with seal + union nut Operating water filter assembly - Figure 11 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 24: Operating Water Hose Assembly - Figure 12
Suction pipe assembly 4-01, 700190-003291 1/2" (black with white stripe) 790208-000007 9 mm black PVC hose 2.4 m Suction from tank assembly - Figure 13 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 25: Fertilizer Suction Hose Assembly - Figure 14
Quantity Injection valves housing 4- 700190-003305 Spring 0.7 for injection 760107-000060 valve 700190-003318 Valve with Viton seal 710101-000987 Valve-positioning ring Black air release assembly - Figure 15 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 26: Fertilizer Injection Hose Assembly - Figure 16
Top clamp for fertilizer pump 710101-000972 Bottom clamp for fertilizer pump 760102-000097 1/4” UNC 316 stainless steel 760101-000419 1/4" UNC stainless steel bolt Rod bracket assembly - Figure 17 Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... -
Page 27: Filter + Flow Regulators - Figure 18
(liters/hour) Fertilizer quantity 10.6 15.9 21.1 (grams) Cat. No. 700190-003263 700190-003264 700190-003265 700190-003266 700190-003267 Flow regulator capsule Cat. No. 700190-003271 700190-003272 700190-003273 700190-003274 700190-003275 Flow regulator assembly Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... - Page 28 Add-ons + Annual Maintenance Kit Set of O-rings Cat. No. - 700190-003254 Anti-vacuum Assembly Cat. No. - 700190-006733 Annual Maintenance Kit Cat. No. - 700194-000135 Annual Maintenance Kit Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01...
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Page 29: Troubleshooting
(Figure 9 part 6.5), in the flow regulator (if there is one), in the valve (Figure 3 part 5) or in other passages along the injection line. Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01... - Page 30 Pump seal (brown) is torn and should be replaced from the breather valve Fertilizer and water Worn cylinder body. Replace the body of the pump dripping from the breather valve Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01...
- Page 31 1.5.3) previous position. Repeat 3-4 times. Obstructions in the Check according to the explanation in section 1/4 suction system Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01...
- Page 32 Pull up the red button along with the cover and diaphragm assembly Check diaphragm assembly for tears or fractures Replace parts if needed or call a service technician Installation, operation and maintenance instructions Injection pump for chemicals and fertilizers – 4-01...
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Page 33: Amiad Limited Warranty
In no event shall Amiad be liable to the Buyer or any third party for any damages to property, or for any intangible or economic loss, including loss of profits, loss of customers or damage to reputation, for any damages, including indirect, special,...
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