Hardi Mercury Covamax Operator's Instruction Manual
MERCURY COVAMAX
Operator Instruction Manual
67002404-100
HAU - 08.2009
www.hardi.com.au
We congratulate you for choosing a HARDI plant protection product. The reliability and efficiency of this product
depends upon your care. The first step is to carefully read and pay attention to this instruction book. It contains
essential information for the efficient use and long life of this product.
As this instruction book covers all versions of the equipment which are available in certain countries only,
including all hydraulic variations, and all operating units, please pay attention to the paragraphs dealing precisely
with your model.
This book is not
is to be read in conjunction with the “Spray Technique” book and any other manuals supplied with your sprayer.
Illustrations, technical information and data in this book are to the best of our belief correc t at the time of printing.
As it is HARDI Australia policy to improve our products, we reserve the right to make changes in design, features,
accessories, specifications and maintenance instructions at any time and without notice.
HARDI Australia is without any obligation in relation to implements purchased before or after such changes.
HARDI Australia cannot undertake any responsibility for possible omissions or inaccuracies in this publication,
although everything possible has been done to make it complete and correct.
Published by HARDI Australia
Copyright © HARDI Australia 2009
designed to be a maintenance manual, its main purpose is to supply operational information and
Welcome
Section 1
Operator Safety
Section 1
Table of Contents
WELCOME MESSAGE 2
INTRODUCTION 1
SAFETY ALERT ICONS 1
SPRAY DRIFT 1
MECHANICAL SAFETY 2
DISPOSAL OF CHEMICAL CONTAINERS 2
CHEMICAL SAFETY 3
Safety Equipment 3
Contaminated Clothing and Equipment 3
Australian Safety Standards 3
Chemical Information 3
SPRAYER SAFETY 4
Operations 4
Service and Maintenance 4
ELECTRICAL SAFETY 5
During Sprayer Use 5
Operation of Electrical Components 5
TOC. 1
Table of Contents
Description
Section 3
INTRODUCTION 1
GENERAL INFO 2
Work Zones 3
Sprayer Details 3
Identification Plate 4
Further documents 4
Road worthiness 4
Chassis 4
Tanks 5
Drawbars 6
Standard Duty Wide Angle Drawbar 6
Heavy Duty Wide Angle Drawbar 6
Fluid System 7
Main Product Pump 7
Manifold System 8
Filters 8
BoomZone Selection Valves 9
Operating Units 10
MC/2 Manual Operating Unit 10
CB/2 Electric Control Unit 10
EVC Operating Control Unit 11
HARDI CB/2 Switchbox 12
HARDI Spray 2 Switchbox 12
HC 2500 Display 12
HC 5500 Display 12
Air Flow Delivery System 13
Centrifugal Blower Unit 13
4-Way Distribution Stack 13
Flexible Delivery Hoses & Boom Tubes 13
Outlet Delivery Spouts & Nozzles 13
Gearbox 14
TOC. 2
Axles 15
Track Adjustment 15
Wheel Types 16
Table of Contents
Suspension 17
Powder Mixer - Chemical Induction 18
Boom 19
Lift 20
Fold 20
Tilt 20
Breakaway Arms 21
Adjustable Nozzles & Independent control 21
Sprayer Set-Up
Section 4
Introduction 1
Safety 1
Transporting Mistblower 2
Truck transport 2
Connecting Mistblower to tractor 3
Adjusting drawbar length 3
Hitching Drawbar 4
Sprayer levelling with wide angle drawbar 5
Connecting Hydraulics 6
Brakes 7
Fitting PTO Shaft 9
Jockey Wheel 11
Drawbar Safety Chains 11
Connecting Controls 12
Boom Adjustments 14
Boom Width - Row Spacing 14
Crop Height Adjust 14
Adjustable Boom Tube Length & nozzle positioning 15
TOC. 3
Table of Contents
Sprayer Operation
Section 5
Introduction 1
Fluid Delivery 1
Pump Operation 1
Controller Units 2
Adjusting Braglia CB/2 Pressure equalisation 2
Adjusting HARDI EVC Pressure equalisation 3
Filters 4
Air Delivery 5
Gearbox 5
Blower Unit, Distribution Stack & Outlet Spouts 5
Boom Operations 6
Lift 6
Individual Fold & Manual Hydraulic Tilt 6
Electric over Hydraulic Tilt (EOH) 6
Filling of water 7
Filling the clean water tank 8
Cleaning 8
Introduction 8
Cleaning Guidelines 8
Rinsing boom and fluid system 9
TOC. 4
De-contamination 10
Diagrams 11
Fluid System 11
Air Flow Delivery 12
External Fill 13
Agitation 14
Powder Mixing Option 15
Spray Distribution 16
Pressure Regulation & Pressure Relief 17
Maintenance
Section 6
Table of Contents
Introduction 1
Before you get started... 1
Spare parts 1
Lubrication 2
General info 2
Recommended lubricants 2
Transmission Shaft (PTO) lubrication 2
Drawbar lubrication 3
Boom lubrication 3
Axle lubrication 3
O-Ring and Filter lubrication 4
Gearbox lubrication 4
Pump Maintenance 4
Servicing 5
10 Hour Servicing 5
50 Hour Servicing 7
250 Hour Servicing 8
1000 Hour Servicing 9
Occasional Maintenance 10
Boom Tube Fittings 11
Check for EVC Pressure Regulator 12
Cone Check for Distribution valves 12
Drain Valve Seal Replacement 13
Drain Valve Cord Replacement 13
Tyre Changing 14
Flow Meter Inspection 14
Off Season Maintenance 15
Maintenance Schedule 16
TOC. 5
Table of Contents
Fault Finding
Section 7
Operational Problems 1
Introduction 1
It is good practice to start by checking these basics: 1
Prevention 1
Sensors 4
Flow Sensor Inspection 4
Technical Specifications
Section 8
Weights and Measures 1
Conversion factors: Metric to Imperial units 2
Filter mesh specifications 2
Recommended Tyre Sizes & Load Ratings 2
Tightening Hydraulic Fittings 3
Tightening O-Ring Fittings 3
Tightening Flare Type Fittings 3
TOC. 6
Torque Specifications 4
Spare part information 7
Warrant y
Section 9
Table of Contents
Materials and recycling 7
Disposal of the sprayer 7
Further information 7
Warranty policy & conditions 1
Risk Assessment
Section 10
Entanglement 1
Cutting, Stabbing, Puncturing or Striking 1
Shearing 1
Crushing 2
Electrical 3
Explosion 3
Friction 3
Pressure 4
Slips, Trips & Falls 4
Ergonomics 5
Suffocation 5
High Temperature or Fire 5
Other Hazards 6
Condition / Stability 6
Environment 7
Abnormal Situations 7
Systems of Work 8
TOC. 7
Table of Contents
TOC. 8
MERCURY COVAMAX
Operator Instruction Manual
67002404- 100
HAU - 08.2009
1 - Welcome
HARDI Australia
534-538 Cross Keys Road Cavan
South Australia, 5094
1. 1
1 - Welcome
WELCOME MESSAGE
To our valued customer:
Congratulations on your purchase and thank you for choosing the HARDI “COVAMAX” Mistblower. This “Operator
Instruction Manual” covers the Safety, Operation and Maintenance procedures for the 2300, 3300 & 3800 Litre
models, and is to be read in conjunction with the “Mistblowing Techniques” manual supplied with your sprayer.
This book is not
is to be read in conjunction with the “Spray Technique” book and any other manuals supplied with your sprayer.
WARNING: Any persons intending to use this equipment, or any of it’s parts or systems must read and
±
understand these publications (plus any related material) paying close attention to the safety warnings prior
to operation.
In addition, all operators must be competent, have undergone appropriate training and hold correct licenses
where applicable, as required by state and federal law. The safety sections and warnings in this publication and all
related material must be thoroughly read and understood before attempting to operate this equipment.
DANGER: Failure to comply with the above may result in personal injury, death or damage to the
€
equipment,property, crops or the environment.
Attention: The technical data contained herein is to the best knowledge of HARDI Australia Pty Ltd correct at the time
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of publishing. HARDI Australia Pty Ltd reserves the right to make changes in design, features, accessories,
specifications and instructions at any time without prior notice and is without obligation in relation to products
purchased before or after such changes and assumes no responsibility for any errors, inaccuracies or omissions.
Please visit our web site at: www.hardi.com.au for more information about research and development, our
product range, spraying techniques and crop protection. For sales, service and spare parts information contact
your local HARDI dealer.
Copyright: Design, text, illustrations and layout in this manual are produced and published by HARDI Australia Pty
Ltd and are protected by copyright law. Copyright © August 2009 HARDI Australia Pty Ltd.
designed to be a maintenance manual, its main purpose is to supply operational information and
1. 2
2 - Safety
Operator Safety
INTRODUCTION
This manual contains safety information which could prevent crop damage, personal injury or death. It is highly
recommended that all operators intending to use this equipment read and understand this manual and related
literature. Safety information in each section must be read carefully, and if any doubt contact your HARDI dealer
for further information.
SAFETY ALERT ICONS
Safety information in this manual is highlighted by the following icons according to the level of potential risk:
DANGER: This indicates the highest level of hazard alert. Failure to comply with the information contained
€
here could result in personal injury or death.
WARNING: This indicates that mandatory action is required. Failure to comply with the information
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contained here could result in damage to crops, the equipment and/or the environment.
Attention: This indicates practical information regarding safe and effective use of the equipment and its systems.
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Note: This indicates general information that can provide the reader with a higher level of understanding.
÷
SPRAY DRIFT
WARNING: Serious crop damage can occur as a result of spray drift. Certain climatic conditions can increase
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the risk of spraydrift onto neighbouring crops.
Although calibration information is provided in the Mistblowing Techniques Manual it is vitally important that you
read the chemical manufacturer’s recommendations for the correct use of their product.The manufacturers label
will also state the products limitations and warnings.
Wind speed, temperature, humidity and chemical properties should all be considered when determining if
conditions are suitable for spraying. Contact your local Department of Primary Industries for details of relevant
publications explaining the risks and how best to minimise them. It is the responsibility of the sprayer operator to
make sure that the spraying conditions are suitable for the application of the chemical to be used.
WARNING: After changing chemicals or crops it is essential that the entire sprayer be flushed. This includes
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disconnecting hoses from the filters and pressure relief valve and cleaning residue and sediment in the
hoses, valves and filters. Failure to do so may potentially lead to serious crop damage.
Attention: Remove and store safety wear and clothing after spraying to prevent contamination of the cabin.
±
Dispose of, or clean appropriately. If poisoning occurs identify the chemicals and seek medical advice
urgently.
2. 1
2 - Safety
MECHANICAL SAFETY
DANGER: Never operate any part of the equipment if any of it’s components or safety shields are damaged.
€
Never service or repair the equipment while it’s operating and replace all safety devices and shields after
service procedures.
DANGER: Always de-pressurise the equipment and disconnect the power after each use and before
€
servicing. Make sure all hydraulics are in the recommended position. Do not walk under any part of the
sprayer or the boom unless it is properly secured.
DANGER: Never attempt to enter a tank or allow some one else to do so for any reason.
€
DANGER: No persons are allowed in the operations area of the sprayer. Keep unauthorised persons and
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children away from the equipment at all times. Do not allow any one to ride on the equipment while it is
operating.
DANGER: Do not exceed the max. recommended RPM for any part of this equipment.
€
DANGER: Local laws may require operators to be certified before using spray equipment and some
€
chemicals. Consult your local authorities before commencing operation.
WARNING: When using an arc welder disconnect any power leads to the sprayer prior to welding and remove
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any flammable or explosive material from the area.
WARNING: Although every effort has been made to include as much safety information as practical, it is
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impossible to anticipate every hazardous scenario. It is therefore the responsibility of the operator to
exercise safe operating practices.
WARNING: This equipment is intended for the application of crop protection chemicals and liquid fertilisers
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only. HARDI Australia does not authorise or endorse it’s use for any other purpose.
DISPOSAL OF CHEMICAL CONTAINERS
Please note that in addition to normal safe operating practices, and in the interests of a cleaner and safer
environment HARDI Australia supports the “drumMUSTER” chemical drum recycling program:
• Rinse empty drums immediately after use.
• Remove lids to allow drums to dry completely.
• Recycle with “drumMUSTER”
WARNING: Used chemical containers pose a severe threat to persons, animals and the environment. Before
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disposal, contact the Environmental Protection Authority or the Department of Primary Industries in your
area for more information.
2. 2
2 - Safety
1
2
3
4
5
6
CHEMICAL SAFETY
DANGER: Avoid risk of chemical contamination. Always read chemical labels and pressure test the
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equipment with clean water prior to filling. Never eat, drink or smoke when spraying or working with
contaminated equipment.
DANGER: Never drink from any of the sprayer's tanks.
€
DANGER: Never assume that the contents of any tank is safe to drink.
€
DANGER: Chemical contamination poses a serious health risk. It is the responsibility of the operator to make
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sure safe work practices are observed and correct safety equipment and clothing is used.
Safety Equipment
Depending on the type of chemical used, some or all of the
following protective clothing and equipment will be required (see
diagram to right).
1. Hearing Protection
2. Eyes and Face Protection
3. Respirator
4. Chemical Resistant Overalls
5. Chemical Resistant Gloves
6. Chemical Resistant Boots
Contaminated Clothing and Equipment
Contaminated clothing should be carefully removed, safely
isolated and then appropriately laundered or disposed of, taking
care not to contaminate other work areas. Tools and equipment
used must also be safely isolated and carefully washed and
decontaminated.
Australian Safety Standards
Protective clothing and equipment must conform to Australian
Safety Standards and must always be used when handling
chemicals, operating the sprayer and during the cleaning and
decontamination process.
Chemical Information
Always read the chemical manufacturer’s labels as they contain
critical information about your safety and the environment. Always consider the environment when disposing of
chemical residue (see section on decontamination). Chemical labels are registered by the National Registration
Authority. Laws vary from state to state regarding the purpose for which a chemical may be used so consult your
local authorities.
DANGER: Agricultural chemicals can be dangerous. Always read chemical labels and carefully follow safety
€
recommendations to the letter.
Attention: Please refer to the chapter on “Cleaning and De-contamination” in the Operation section of this manual
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for further information.
2. 3
2 - Safety
SPRAYER SAFETY
Operations
For your safety:
DANGER: Secure the discharge lines before starting the pump. An insecure line may whip causing personal
€
injury and/or property damage.
DANGER: Never operate this vehicle on public roads at high speeds with product in the product tank.
€
Driving at high speeds with product in the tank will overload the tyres, causing tyre failure leading to loss of
control. Losing control can result in death or serious injury.
DANGER: Do not use these pumps for pumping water or other liquids for human or animal consumption.
€
WARNING: Do not pump at pressures higher than the maximum recommended pressure.
±
WARNING: Empty all product from the product tank before leaving the field. Do not attempt to drive this
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vehicle at high speeds with product in the tank. Fill product tank once you have reached the area of
operation.
WARNING: Turn on the hazard lights and road lights if fitted before entering onto a public road. Keep them
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on while travelling on the road.
WARNING: Check hoses for wear or worn condition before each use. Make certain that all connections are
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tightly secured.
Attention: Periodically inspect the product pump and the system components. Perform routine maintenance as
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required.
SERVICE AND MAINTENANCE
For your safety:
DANGER: Release all pressure within the system before servicing any component.
€
DANGER: Drain all fluids from the system before servicing any component. Flush with water.
€
WARNING: Disconnect power before servicing.
±
WARNING: Use only pipe, hose and fittings rated for the maximum psi rating of the pump.
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2. 4
ELECTRICAL SAFETY
DANGER
BEWARE OF OVERHEAD
ELECTRICAL LINES
ELECTROCUTION
SERIOUS INJURY OR DEATH
During Sprayer Use
Beware of overhead power lines!
DANGER: Operating agricultural machinery near power-
€
lines presents a potentially fatal hazard. It is the
responsibility of the operator to make sure that minimum
safe clearances are strictly observed, in particular when
transporting the implement, spraying, raising, tilting or
lowering the boom. Also be aware that during hot or windy
weather sagging or swaying of power lines can reduce safe
working clearances.
2 - Safety
Operation of Electrical Components
For Your Safety:
DANGER: Never operate this machine with a damaged electrical cord. Disconnect from electrical supply if
€
machine is not working properly or cord is damaged.
DANGER: Do not attempt to bypass a fuse. If a fuse is no longer serviceable, a shock or short hazard may
€
exist.
DANGER: All electrical components generate heat. To avoid serious burns, never touch internal components
€
immediately after use.
DANGER: Disassembly or attempted repairs, if accomplished incorrectly can create electrical shock and/or
€
short hazards. Only qualified personnel should perform repair service.
DANGER: Some electrical components can store energy after the unit is shut down. Be sure to completely
€
de-energize all electrical components, discharging all stored energy before beginning any service work.
WARNING: Never replace original fuses/breakers with a higher amperage fuses/breakers.
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WARNING: Never attempt to replace electrical wires and cables with smaller gauge wire and cable.
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Attention: Do not attempt to operate this machine without the appropriate fuses and breakers in place.
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Attention: Inspect all components for damage after any electrical problem.There are additional hazards associated
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with the service and maintenance of electrical components
2. 5
2 - Safety
2. 6
3 - Description
INTRODUCTION
The MERCURY COVAMAX, available in 2300ltr, 3300ltr & 3800ltr models is designed to deliver features that will
enable greater control over your mistblowing needs, while minimising undesirable conditions such as spray drift.
The over row boom completely envelops the vine row delivering superior spray coverage with significantly less off
target drift. The swivel outlets give easy directional control of the spray to the target ensuring converging air
generates the canopy turbulence required for uniform spray deposition.
The COVAMAX is powered by a large fan capacity ducted air delivery system requiring only 35HP to drive. The air
is carried through the 8 inch air tubing which significantly increases air delivery.
The hydraulic boom design is a simple but sturdy construction utilising maintenance free no grease bushes for
trouble free operation. The boom is a perfect platform for supporting the COVAMAX air delivery system. It is width
adjustable and provides for optional wing tilt operation.
Flexibility of the COVAMAX allows the sprayer to be adjusted to suit varying vine canopies. Individual ball in socket
air outlet design provides for smooth rotation and easy adjustment into the right position. Fluid delivery to each
section is activated by its own valve and each air outlet can be independently turned on and off.
Up to five nozzles can be fitted to each outlet, giving a maximum of fifty nozzles per row! This allows the COVAMAX
to be used in both high and low volume application situations.
The MERCURY COVAMAX can be supplied with chassis suspension for smoother ride and a wide angle drawbar for
confined headlands, allowing the sprayer to track directly behind the tractor.
1. 1
3 - Description
1
2
4
3
5
6
10
8
11
9
14
13
12
7
GENERAL INFO
View 1
View 2
1. Boom & Spouts 2. Handwash Tank
3. Drawbar 4. Main Tank
5. Blower Fan 6. Tool Box & Main Tank Lids
1. 2
7. EC Control Valves 8. Tilt Cylinder (If fitted)
9. Upper Nozzle Spouts - Outer Arm 10. Lower Nozzle Spouts - Outer Arm
11. Fold Cylinder 12. Lift Cylinder
13. Boom Transport Brackets 14. Main Pump
3 - Description
WORKING ZONEAPPLICATION ZONE
Control Valves
Level Indicators
Handwash Tank
Pressure Gauge
Suction Filter
Pump
Drawbar
PTO Connect
Boom
Tank Lid
Toolbox
Blower Fan
Gearbox
Powder Mixer
Spray Spouts
Pressure Filters
Zone Selection Valves
Work Zones
The trailed HARDI MERCURY COVAMAX mistblowers are divided into two different zones.
Working zone: with ease of use in mind; all the elements for regulating the water circuit are located
at the front of the machine.
Application zone: with operator safety in mind; all the parts that come into contact with chemical
products have been located at the rear of the machine.
Sprayer Details
It is important to record details of your sprayer for future reference. These details may help to identify your sprayer
when requiring spare parts or replacement documentation.
Please record your sprayer’s details here:
Model
Serial Number
Capacity
Date of delivery
Dealer
1. 3
3 - Description
HARDI INTERNATIONAL A/S
REFERENCE:
Identification Plate
The identification plate is located on the front right-hand side and
is riveted to the frame. The reference number is engraved to aid
identification of the trailer.
The machine number helps to provide details of the trailers history
and equipment fitted for later reference when dealing with issues
such as warranty or spare parts ordering.
Further documents
Upon delivery please make sure your sprayer’s documentation is complete. Your HARDI Dealer should spend time
to check your new equipment with you and give a detailed explanation of the sprayer’s systems and functions.
Please take the time also to fill out your warranty form and return it to HARDI Australia within fourteen days of
delivery.
Road worthiness
When driving on public roads and other areas where the highway code applies, or areas where there are special
rules and regulations for marking and lights on implements, you should observe these and equip implements
accordingly.
Chassis
Manufactured with high tensile profiles which proportion the machine with great durability and resistance to
breakages and vibrations. During the manufacturing process, and to protect it from corrosion, the chassis is first
sandblasted to provide a clean surface, it is then pre-treated by dipping the frame in an iron phosphate bath
followed by a polymer sealant, it is then coated with a poly-zinc protectant and finished with a powdercoat.
1. 4
3 - Description
Ta nk s
The COVAMAX mistblowers are available in 3 tank capacities with a range of options, the tank capacities are:
2300 litre 3300 litre 3800 litre
The tanks are made of a UV, chemical and Impact resistant
polyethylene. The main tank is designed for easy cleaning and
rounded corners to aid agitation and prevent chemical from
becoming trapped in tight spots.
The main tank also features a fluid level indicator.
The Handwash tank has a nominal capacity of 15 litres. and is
situated at the front of the sprayer. The outlet for the handwash
tank is located at the lower left hand area of the main tank just
behind the suction filter.
DANGER: The “clean water” tank is intended for hand washing etc. only and must not to be used for drinking
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water.
1. 5
3 - Description
Drawbars
Standard Duty Wide Angle Drawbar
The standard drawbar is coupled to the tractor’s hitching point.
Before connecting the PTO make sure that the drawbar is properly
secured and check that the tractor’s wheels do not touch the
mistblower when turning. The length of the drawbar is adjustable
(see Sprayer Setup section for “Changing the drawbar length”).
Attention: Before connecting the PTO make sure that the
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diameter and number of splines on the driveshaft is the
same as that of the tractor’s output shaft. Make sure that the
tractor’s PTO output speed is matched to the speed of the
product pump.
Heavy Duty Wide Angle Drawbar
This drawbar is coupled to the tractor’s linkage.
Check that the tractor’s wheels do not touch the mistblower when
turning. Unlike a standard drawbar, it permits greater turning
angles, but a transmission shaft with CV joint is needed on the
mistblower side.
The length of the drawbar is adjustable (see Sprayer Setup section
for “Changing the drawbar length”).
1. 6
3 - Description
BHS200 Product Pump
363 Product Pump
Fluid System
Main Product Pump
The main product pump is available in two different models;
• AR Pumps BHS200 - Four Diaphragm Brass Head High Pressure Pump
• HARDI 363 - Six Diaphragm Positive Displacement Pump
BHS200 Pump
High pressure diaphragm pumps with positive displacement, external bronze manifolds and brass heads with 4
diaphragms. It has a maximum pressure of 50 bar (775 PSI) and operating at 550 RPM will deliver 193.7 litres per
minute.
• Four diaphragm positive displacement pump
• High Pressure 50 bar (725 PSI)
• 193.7 Litres per min delivery rate.
• Self priming
• Oil bath lubrication
• Cast alloy construction
363 Pump
The Hardi 363/7 pump has a 6 splined 1 3/8” shaft for connection to the tractor PTO. The normal operating
revolutions are 540 RPM. The HARDI 363 is a self priming diaphragm pump with 6 diaphragms and a maximum
pressure of 20 bar (294 PSI).
• Six diaphragm positive displacement radial pump with base
plate.
• Self-priming.
• Can rotate clockwise or anti-clockwise.
• One grease point for lubrication.
• Dry sump to simplify maintenance.
• Polyurethane diaphragms and seals.
• Cast iron crankcase and covers.
• Stainless steel bolts and plates for diaphragms.
• 1 1/2” suction port, 1” pressure port.
• Capacity range of 140 l/pm @ 0 bar to 122 l/pm @ 20 bar
1. 7
3 - Description
Fluid Manifold System
Control of the fluid flow and functions is carried through a distribution manifold. This manifold consists of control
valves (MC/2, CB/2 or EVC), pressure regulators, flowmeter (option), pressure relief and control taps for activation
of agitation and if fitted the powdermixer option.
Filters
The filters fitted to the MERCURY COVAMAX include a suction filter and two optional pressure filters;
Suction Filter
The suction filter captures impurities in the liquid system in order to protect the machines’ components. It is
located at the front of the sprayer in the lower left hand side next to the main pump.
The tap on the top of the suction filter controls the selection source for fluid flow. The source tap can be turned to
open the valve to accept an external source supply or to supply from the main tank contents, the tap may also be
turned to an ‘OFF’ position by turning the handle to 90 degrees between the two source options for servicing the
filter when the tank has liquid inside.
1. 8
3 - Description
x2
x2
Pressure Filters (Optional)
The sprayer is fitted with two inline pressure filters which
independently filter each side of the boom. These filters are
located directly in front of the fan and are connected immediately
before the boomzone selection valves.
BoomZone Selection Valves
Located immediately after the pressure filters are valves that control the flow to the boom sections. Each valve
controls flow to the left and right side - inner or outer boom sections.
1. 9
3 - Description
1
2
Operating Units
MC/2 Manual Operating Unit
The MC/2 Manual operating unit consists of a pressure valve (1)
and a pressure gauge (2). These are connected on to the end of the
supply manifold and serve to regulate and read the system
pressure.
With the use of two control handles connected to the tractor’s
cabin, control of the left and right side spray zones can be
manually operated as required.
1. 10
CB/2 Electric Control Unit
Brown wire (+)
Blue Wire (-)
12V
+
-
1
2
3
4
5
Through an electrical control box the incorporated switches are
operated to select the sector that you want to open, and to raise or
lower the pressure.
Its constituent elements are:
• Pressure Gauge
• Electro Valves for section control
• Electro Valve for pressure control
• Spray Box 2 (pressure, section ON/OFF)
• Pressure Equaliser Valves
The power requirement is 12V DC. Be very careful with the
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po la rity as ther e i s a ris k of da ma ging the circuit of the control box
or some of the electro-valves.
3 - Description
1. 11
3 - Description
EVC Operating Control Unit
The EVC control unit is constructed of modules and consists of;
• Pressure Relief Valve
• Pressure Regulator
• Pressure Gauge
• Flowmeter (fitted on electronic control)
• Section distribution valves
• Constant Pressure Equalisation valves
Pressure Relief valve
The pressure relief valve mounted to the end of the fluid
distribution manifold enables control of the maximum liquid system pressure.
EVC Pressure Regulation Valve
The pressure regulator controls the system pressure allowing excess fluid to bypass back to the main tank.
Pressure Gauge
The pressure gauge gives a visual indication of the system pressure and can easily be viewed from the tractor cab.
Section Distribution Valves
The distribution valves offer independent control of fluid flow to the boom sections enabling operation of either
left wing, right wing for versatile application of chemical product.
Constant Pressure Equalisation Valves
Mounted underneath the distribution valves is an adjuster that controls the constant pressure for the distribution
valves, this helps to maintain a constant system pressure when the distribution valves are opened or closed.
1. 12
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