KIRKLAND Orvin Mounted Single Sprayer User manual

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Orvin Mounted and Trailed
Sprayers
Aylesham Industrial Estate | Cooting Road | Aylesham | Canterbury | CT3 3EP
Tel: [phone] | i[email protected] | www.kirklanduk.com
‘Specialist horticultural machinery and crop protection systems’
Mounted Single
Sprayer Trailed Canon Sprayer Mounted Midi Tower Sprayer
Mounted Tank and
Pump Midi Trailed Sprayer

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MOUNTED AND TRAILEDSPRAYERS
USE AND MAINTENANCE MANUAL
1. General information
1.1 TYPOGRAPHICAL CONVENTIONS
1.2 AIM OF THE MANUAL
1.3 MACHINE IDENTIFICATION LABEL
1.4 DESCRIPTION OF THE MACHINE
1.4.1 tanks
1.4.2 filters
1.4.3 pump
1.4.4 control unit
1.4.5 nozzles
1.4.6 fan
1.4.7 pressure gauge
1.4.8 hydraulic circuit
1.5 OPERATIONAL CONDITIONS
1.6 WORK STATION
1.7 NOISE IMMISSION LEVEL
1.8 VIBRATIONS
1.9 SERVICE LIFE OF THE SPRAYER
1.10 DEMOLITION OF THE MACHINE
2. Safety instructions
2.1 LABELS AND SAFETY SIGNALS
2.2 PROTECTIVE DEVICES FOR THE OPERATOR
2.3 SAFETY RULES CONCERNING THE OPERATION
2.4 SAFETY RULES CONCERNING ADJUSTMENT AND MAINTENANCE
3. Handling and carriage
3.1 MOUNTED SPRAYERS
3.2 TRAILED SPRAYERS
4. Use of the sprayer
4.1 CONTROL LEVERS AND ADJUSTMENT
4.1.1 Mounting the machine
4.1.1.1 - drawbar length
4.1.1.2 - tread width (outside tire-to-tire dimension)
4.1.1.3 - position of the joints
4.1.2 Adjusting the spray application
4.1.2.1 - pressure control
4.1.2.2 - application process
4.1.2.3 - nozzles control
4.1.3 Air-stream control
4.1.3.1 - position of the fins
4.1.3.2 - fan rotation speed
4.1.3.3 - fan blades angle
4.2 CONNECTING THE SPRAYER TO THE TRACTOR
4.2.1 Mounted sprayers

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4.2.2 Trailed sprayers
4.2.3 Connecting the shaft
4.2.4 Electric connection
4.2.5 Hydraulic connection
4.3 PREPARATION OF THE MIXTURE
4.4 APPLICATION TO THE CROPS
4.4.1 Before performing the application
4.4.2 During the application
4.5 CIRCUIT-CLEANING
4.6 DISCONNECTION
4.6.1 Mounted sprayers
4.6.2 Trailed sprayers
4.7 DISPOSAL OF THE EMPTY PACKETS OF AGROCHEMICALS
4.8 OPTIONAL EQUIPMENT
4.8.1 Tank filling device
4.8.1.1 –Pump-directed suction
4.8.1.2 –Hydraulic injector
4.8.2 Support wheels for mounted sprayers
4.8.2.1 –Connection to the tractor
4.8.2.2 –Disconnection
4.8.3 Steering drawbar
4.8.3.1 –Connection to the tractor
4.8.3.2 –Disconnection
4.8.4 Jointed drawbar with hydraulic control
4.8.5 Reclining distribution group with hydraulic control
4.8.6 Transmission with constant-velocity universal joint
4.8.7 Hydraulic transmission
5. Setting up the machine
5.1 OPERATIONAL PARAMETERS
5.1.1 Feed velocity
5.1.2 Nozzles delivery
5.1.3 Pressure
5.1.4 Manouvering
5.2 VOLUME OF LIQUID DISTRIBUTED
5.3 ADJUSTING THE SPRAYER
5.3.1 Number of operative nozzles
5.3.2 Nozzles dimensions and pressure
6. Periodical maintenance
6.1 FILTERS-CLEANING
6.2 PRESSURE OF THE AIRDRAULIC COMPENSATOR
6.3 BELT TENSION
6.4 LUBRICATION
6.5 WINTER GARAGING
7. Main anomalies and remedial actions

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1- General information
Please read this use and maintenance manual carefully before performing any
intervention on the machine.
1.1 - Typographical conventions
This manual is subdivided into chapters and sub-chapters with progressive numbering.Furthermore,
we have adopted the following conventions in order to facilitate the individuation of the
information:
shaded box
the information inside the box is very important for the correct use of the
machine
highlighted text
descriptions that must be read with utmost attention
normal text
descriptions
1.2 - Aim of the manual
This use and maintenance manual has been drawn up by the Manufacturer and is integral part of the
machine. It contains information concerning the use of the machine together with the safety rules to
adopt.
Instructions are addressed to a professional user who must be able to drive the tractor to which the
machine is connected. The user must be able to handle agrochemical products.
Follow the instructions in order to guarantee the safety of the operator and other persons and
to ensure the perfect operation of the machine itself.
1.3 - Machine identification label
Each machine is equipped with an aluminium identification label placed on the front side of the
machine. It shows the EC mark (indicating that the machine complies with the regulations in force),
together with the information required for the identification of the model, the year of manufacture,
the serial number (it is necessary when spare parts are requested), weight (in kg).
We recommend the use of original spare parts.
The Manufacturer shall not be liable for any harm to people or damage to things owing to non-
authorized modifications.
THIS USE AND MAINTENANCE MANUAL MUST BE KEPT THROUGHOUT THE
OPERATING LIFE OF THE MACHINE.

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Identification label
1.4 –Description of the machine
The machines described in this manual are commonly called sprayers. They are engineered for the
application of agrochemicals (fluid mixture) to cultivation. They are formed by the following
components:
-main tank containing the mixture to spray
-additional tanks for hand-washing and circuit-cleaning
-fluid filtering system
-pump
-control unit
-nebulizing nozzles
-fan for the distribution of the drops on the target
-control levers
1.4.1 - Tanks
According to the models, tanks are made of fibre-glass reinforced polyester or polyethylene.
The main tank, that contains the mixture of water and agrochemicals, has a top opening for filling.
The cap has a blocking system when it is closed. Inside the opening there is a basket strainer with
synthetic meshes. It traps particles that can compromise the operation of themachine.
ALWAYS USE THE BASKET STRAINER WHEN INTRODUCING ANY FLUIDINTO
THE TANK.
The bottom of the main tank is shaped in such a way that it allows the total emptying even when the
machine is leaning. The auxiliary tanks are placed in different positions according to the models,
and they should only contain clean water. The smaller tank (15 litres capacity) holds water for the
operator cleaning; it allows the operator to wash himself immediately if he should come into contact
with the product used. It has a lever on the tap so that it could be left on.
The capacity of the circuit cleaning tank is proportional to the main tank and must be used for
pouring the fluid out the pipes at the end of the treatment, or before performing any intervention on
the pipes. For washing procedure read the pertinent chapter.
ALWAYS FILL THE AUXILIARY TANKS BEFORE EVERYTREATMENT.

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1.4.2 –Filters
Besides the mentioned filter inside the top opening, the machine has other filters on the suction-
pump circuit and the pipes connecting the control unit to the nozzles.
The suction filter is on the pipes connecting the main tank to the pump and a special device allows
its dismantling even when the tank is full. Its function is to trap big particles that could arrive to the
pump, block the operation and increase the machine wear.
The filters on the fluid-carrying pipes (conducing to the nozzles) have a finer mesh; they trap those
particles suspended in fluid that could obstruct the nozzles and reduce the efficiency of the
nebulizing system.
THE FILTERS NEAR THE NOZZLES SHOULD HAVE A MESH PROPORTIONALTO
THE NOZZLE SIZES.
For filter cleaning and maintenance read the proper chapter.
1.4.3 –Pump
According to the models, it could be a piston-diaphragm pump or a piston-pump. It sucks fluid from
the tank (main or auxiliary tank according to the position of the adjusting valves) through the filter
mentioned and produces an internal pressure. The pressure supplied to the fluid is set either by the
position of the pressure regulator or the rotation rate of the pump. The piston-diaphragm pumps are
equipped with an air hydraulic compensator that reduces the variations in pressure due to the
alternating motion of the pump. The pump can be worked by the shaft connected to the tractor,
or by a cog belt (in some models).
For the pump maintenance, follow this manual and the pump use and maintenance manualenclosed.
1.4.4 –Control unit
It could be mounted either on the machine or a movable board placed near the driver’s seat. It can
be worked by a manual, mechanical or electric control (by special cables).
It receives the pressurized fluid from the pump and sends a part of it to the nebulizing group; the
liquid in excess is sent back to the tank. The pressure inside the nebulizing circuit can be
adjusted by a handle placed on the control unit. Special levers control the supply and side of
distribution (left-hand or right-hand side).
1.4.5 - Nozzles
They are mounted on the nebulizing unit. They produce a mechanical subdivision of the pressurized
liquid sent by the pump and nebulize it into fine drops. They usually are jetting nozzles and
produce a conical jet.
Near the nozzles are installed some anti-drip devices, that hinder the fluid from dripping when the
distribution is interrupted. The quantity of fluid expanded can vary according to the nozzle
dimensions.
1.4.6 - Fan
It produces a stream of air that helps the drops passing through vegetation. It is placed on the rear
side of the machine and is moved by a multiplier group connected to the P.T.O (power take off) of
the tractor. According to the models, the air suction occurs on the rear side (Athos, Drag series),

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the front side ( series) or on both sides (K series). In this case there are two contra
rotating propellers.
1.4.7 - Pressure gauge
It measures the pressure inside the distribution group; on the basis of that it is possible to verify the
correct operation of the machine.
1.4.8 - Hydraulic circuit
The following figure shows the position of the different components of the sprayers, but it does not
refer to their real position. The arrangement of the different components changes according to the
models and setting of the sprayers.
N
C
B D
A K M
G L
E J
F
G HI
A
Hand-washing tank
H
Suction filter
B
Circuit-cleaning tank
I
Pump
C
Main tank
J
Control unit
D
Basket strainer
K
Pressure gauge
E
Shaking system
L
Carrying filter
F
Drain valve
M
Nozzles
G
3-way valve
N
Fan
1.5 –Operational conditions
The sprayers mentioned in this use and maintenance manual are addressed to the distribution of
agrochemical products to the crops. For this application it is necessary to follow the precautions
described in their labels, especially for the quantity to distribute, period of application and type of
cultivation.
ANY OTHER USE OF THE SPRAYERS ISFORBIDDEN.
NEVER USE THE FOLLOWINGPRODUCTS:
 paints and solvents of every kind
 inflammables
 foodstuffs
 mixture of other chemicals

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The manufacturer shall not be liable for damages caused to things, people and the machine
itself due to the improper use (not foreseen by the manufacturer) or the non-observance of the
safety rules.
1.6 –Work station
The sprayer has not a work station; it is connected to the tractor that transfers the motion, by the
shaft, for the operation of the pump and the fan. It could also transfer the pressurized
hydraulic liquid that is necessary for the operation of special accessories.
The operator’s work station is in the cab: here the operator can easily use the machine controls and
adjusting devices.
1.7 –Noise emission level
During specific tests, the sound level to which the operator has been exposed is higher than the
noise produced by the tractor (of nearly 3 dB).
1.8 –Vibrations
In the use and maintenance conditions foreseen by the manufacturer, the level of vibrations
produced by the machine is very low if compared to the vibrations of the tractor.
The operator shall take some precautions in order to avoid harmful effects for his health.
1.9 –Service life of the sprayer
Under stable operational conditions, the duration of the machine that has been estimated by the
manufacturer is 3,000 hours of operation.
1.10 –Demolition of the machine
If the machine is in bad wear conditions such as to compromise its functionality and safety, it must
be demolished by a company authorized in demolition.
Refer to specialized companies for the disposal of the oil of the hydraulic circuit.

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2–Safety instructions
Never tamper with the safety devices of the machine.
2.1 –Labels and safety signals
On the machine there are some labels warning about the risks that may occur and the precautions
the operator shall adopt.
Make sure that all the labels and warnings are readable and in good conditions. On the
contrary please proceed to their replacement.
.
Look up the use and maintenance manual before
carrying out any operation.
Switch off the engine of the tractor and remove
the ignition key before carrying out any
interventions on the machine

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.
2.2 –Protective devices for the operator
The machine is engineered for the distribution of agrochemicals that may be harmful for man. So,
the operator shall take the necessary precautions in order to avoid contamination and environmental
waste of harmful substances. Moreover, the operator shall respect the indications given by the
producer of those agrochemicals.
During the preparation of the mixture the operator shall wear appropriate personal protections:
waterproof gauntlet, shoes and overalls, and a charcoal mask. Personal protections can vary
according to the harmfulness and toxicity of the product. During the distribution it would be better
to use a tractor with a cab with air filtration. If it is not possible the operator shall wear the
mentioned personal protections even during the distribution.
The non-observance of these safety rules will be considered as improper use by
Kirklanduk.
Max rotation rate of the P.T.O. of the tractor:
540 rpm.
.
Danger: fan in motion. Stay at safety distance
Danger of contact with the rotating cardan shaft.
Stay at safety distance
Danger of crushing against the machine during
the hydraulic drawbar motion. Stay at safety
distance.

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2.3 –Safety rules concerning the operation
 do not use pipes and levers as handhold
 start up all the safety devices foreseen by the manufacturer before leaving the machine
unguarded
 do not permit people to approach the machine when it is operating
 do not use the machine without the protections supplied by the manufacturer
 do not operate when the safety devices are deactivated or not operating
 do not use the machine as means of transport or trailer
 do not use the machine on steep fields
 during road circulation, use the appropriate devices requested by the highway code of your
country
 do not use the tools contaminated by the chemical product for other purposes
 do not get in the tank, for any reason.
2.4 –Safety rules concerning adjustment and maintenance
 do not permit to non-authorized people to repair or perform maintenance or other
interventions on the machine
 special maintenance and repairs must be carried out by an authorized garage with
appropriate equipment
 any modifications must be carried out only after the manufacturer’s approval.
3–Handling and carriage
This chapter concerns exclusively the transport of the machine for any other causes different from
the distribution of agrochemicals to the crops.
Never move the machine when the tank is full.
Lifting and handling operations shall be carried out by appropriate means and qualified
hands.
If the machine must be moved by a different means (not a tractor) for which it has been engineered,
please act in the following way.
3.1 –Mounted sprayers
If possible, place the machine on a pallet, fix it adequately and move it by means of a lift truck. If
this is not possible, and it is necessary to lift the machine by means of a crane or an overhead
traveling crane, fasten tight the machine with belts having an adequate lifting strength. The lifting
ropes should be connected to the 3-point coupling and the fan unit. As for series K, connect the
ropes to the upper pipes of the tower; for series Athos, it is necessary to wrap the whole fanunit.
3.2 –Trailed sprayers
If possible, transport the machine by means of a lift truck; insert the forks one before and one
behind the sprayer wheel. If this is not possible, and it is necessary to lift the machine by means of a

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crane or an overhead traveling crane, it is essential to fasten the machine with belts having an
adequate lifting strength. The lifting ropes should be connected to the drawbar and the fan unit. As
for series K, connect the ropes to the upper pipes of the tower; for series Athos, it is necessary to
wrap the whole fan unit; for series connect the lifting ropes to the chassis extension near the fan
intake.
4–Use of the sprayer
4.1 –Control levers and adjustment
4.1.1 –Mounting the machine
4.1.1.1 –Drawbar length
As for trailed sprayers, the length of the drawbar is adjustable. Adapt the drawbar length according
to the length of the hauling structure of the tractor, so that it does not hit the tank when turning.
Proceed as follows:
 operate when the sprayer is unhooked from the tractor
 make sure the wheels are blocked by special wedges
 loosen bolt A
 remove bolt B
 run the movable part of the drawbar and insert bolt B in holes 1 and 2
 fix bolt B
 fix bolt A
 within the first minutes of operation verify that bolts A and B are still well tightened.
4.1.1.2 –Tread width (outside tire-to-tire dimension)
On request, trailed sprayers can be supplied with special hubs for increasing or decreasing the
distance from theground.
For the tread width regulation it is necessary to remove the bolts fixing the hub on theaxle.
Proceed as follows:
 block one of the wheels
 lift the other side of the machine as far as the wheel is raised from the ground
 place some safety supports under the chassis in order to avoid accidental falls of the
machine
 remove the bolt fixing the hubs to the axle
 run the hub as far as the width required
 coincide with the fixing hole
 re-insert the fixing bolt and tight it till the bottom
 pull down the machine
 repeat the operation on the other side

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4.1.1.3 –Position of the joints
On mounted sprayers it is possible to adjust the position of the lower pivot pins. Proceed as follows:
 unscrew the fastening nut of pivot pin A
 unthread the pin and insert it in holes 1 or 2
 fix the fastening nut.
4.1.2 –Adjusting the spray application
This is the most important aspect for a correct treatment.
According to the models and the arrangements, the position and the structure of the adjusting unit
can vary, but the main components are the same in every group. Precisely:
 the general control lever –it allows to completely release the pressure from the circuit and
stop the nozzle delivery (A )
 pressure regulating handle (B )
 pressure gauge –it indicates the pressure in the distributing circuit –whilst the machine is
operating, this is the instrument that indicates the operator the distribution efficiency
(C )
 distribution control levers on both sides and levers for optional services (A,B,C dx).

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4.1.2.2 –Pressure control
Turning the control handle clockwise, the pressure inside the distributing circuit increases,
otherwise it will decrease. During the distribution (at a constant engine rate) the pressure should be
stable. Any drop or oscillation reveals failures on the hydraulic circuit of the machine. In this case it
is necessary the intervention of qualified hands for failure individuation.
4.1.2.3 –Application process
The general control lever opens or closes the distributing circuit at the end of the area to treat.
Cut off the product distribution whilst turning: you will minimize the waste of product and
avoid environmental contamination.
4.1.2.4 –Nozzles control
Each nozzle on the machine can be disconnected in order to avoid spreading liquid beyond the area
of targeted vegetation.
The nozzle is open (it can supply) when it is outwardly turned; it is closed if it is rotated of90°.
open closed
4.1.3 –Air-stream control
The stream of air produced by the machine must be adjusted in order to be targeted to the area to
treat. The wrong adjustment of the flow direction can cause a loss of efficiency. Moreover, it is
necessary to adjust the air-flow intensity, by operating the suitable device. The intensity should be
set according to the dimensions of the vegetative area. Higher intensity is necessary when the
vegetation is considerably developed.
Perform every adjustment whilst the engine of the tractor is switched off.
4.1.3.1 –Position of the fins
The distribution units of all the machines have 4 steering fins, used to target the stream of air to the
direction required. 2 of them are placed in the upper side and must be adjusted in function of the
height of the plants. The others are near the lower side of the air output and are used to regulate the
distance of the jet from the ground.

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The fins are fixed and keep the position given by the operator. If the adjustment of the fins requires
a big effort, loosen slightly the bolts fixing the fins on the chassis. On the contrary, if the fins do not
hold the position, tighten up thebolts.
4.1.3.2 –Fan rotation speed
The fan rotation rate varies according to the rotation speed of the P.T.O. of the tractor and the
technical characteristics of the machine. The operator can adjust the fan rotation speed by regulating
the P.T.O. speed or (for the machines that are equipped) varying the fan velocity ratio. The models
equipped with gear offer 2 different fan speeds. To select one of them apply the appropriate control
lever near the gear box. This control lever has a central position –neutral –and 2 positions
corresponding to the different speeds.
Proceed as follows:
 switch the engine off, apply the hand brake and remove the ignition key
 select the speed required
 help the engagement by rotating manually the shaft.
Never operate the gear lever as long as the fan has stopped.
The P.T.O shall never exceed 540 rpm.
4.1.3.3 –Fan blades angle
As for the fans equipped with reclining propeller it is possible to vary the flow rate by reclining the
fan blades. Proceed as follows:
 switch off the engine of the tractor, apply the hand brake and remove the ignition key
 insert the provided key in the central part of the propeller hub
 turn clockwise to increase the blades inclination or anticlockwise to decrease theinclination
 when the inclination required is obtained (the blades have a nick-mark), take out the key.
The system is self-locking.
Do not perform any intervention on the blades adjusting system as long as the fan has
stopped.
4.2 –Connecting the sprayer to the tractor
4.2.1 –Mounted sprayers
Before connecting the sprayer to the tractor, make sure that the tractor has an adequate horsepower
and a sufficient mass in order to avoid overturning when the tank is full.
The total weight of the tractor and the sprayer (with full tank) should be allocated on the
front axle of the tractor for at least 20%
During the connection to the tractor make sure that there are no persons between the tractor
and the sprayer.
 Check the diameter of the pivot pins on the machine and the diameter of the poppets of the
tractor; if necessary use appropriate adapter axle boxes
 Place the lower lifting booms of the tractor to the height of the lower pivot pins of the
machine

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 Move back with the tractor in such a way that the holes of the booms coincide with the pivot
pins of the machine
 Apply the hand brake, switch the engine off and remove the ignition key
 Hook the 2 booms to the pivot pins of the machine and insert the spring clips in the holes of
the pins
 Connect the boom of the 3-point coupling to the sprayer with the appropriate pin
 Adjust the length of the 3-point coupling in such a way that the machine is parallel with the
ground
 Switch the engine on and lift the machine
 Adjust the tension rods of the lower lifting booms in such a way that the sprayer is at the
centre of the tractor; block the tension rods to avoid lateral oscillations
 Adjust the position of the control unit in such a way that it does not interfere with the tractor
during lifting operations and is easily accessible to the operator when he is in the driver’s
seat.
Always insert the safe clips to avoid the accidental disconnection of the booms from the pins.
Do not use nails, bolts or clips of inadequate dimensions.
4.2.2 –Trailed sprayers
Before connecting the sprayer to the tractor, make sure that the tractor has an adequate horsepower
in order to avoid hauling problems.
During the connection to the tractor make sure that there are no persons between the tractor
and the sprayer.
 Set the height of the support foot in such a way that the lunette of the machine coincides
with the pulling devices of the tractor
 Move back with the tractor in such a way that the hole of the pulling device coincides with
the lunette of the machine
 Apply the hand brake, switch the engine off and remove the ignition key
 Insert the pivot pin and its spring clip
 Lower the support foot and slip it out
 Remove the wedges from the wheels
 Set the control unit
Always use connecting pins of adequate dimensions and always insert the spring clip.
4.2.3 –Connecting the shaft
The tractor must be equipped with P.T.O. and a 6-splines 1”3/8 shaft, with a nominal rotation rate
of 540 rpm.
The shaft must have the EC mark as it is a potentially dangerous component.
Perform the connection whilst the tractor is off and the P.T.O. is disengaged.
The length of the shaft must be such as to avoid any risks of jibbing in condition of
minimum extension, or risks of excessive slipping in condition of maximumextension.

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 Apply the hand brake, switch the engine off and remove the ignition key
 Connect one of the tips of the shaft to the sprayer. Keep pressed the button on the mouth,
insert the sleeve of the shaft on the splined shaft of the machine. Release the button and run
to and fro till the button hooks the proper seat (this operation can be performed before
connecting the sprayer to the tractor)
 Repeat this operation connecting the other tip of the shaft to the P.T.O.
 Make sure that the fixing buttons are correctly placed
 Anchor the chains hindering the rotation of the safety protections.
Never work with the shaft leaning of more than 30°. If it is necessary to get over this tilts, use a
constant-velocity universal joint.
Never operate when:
- the P.T.O. protection
- the shaft protection
- the fixed protection on the shaft of the pump
are missing or damaged.
4.2.4 –Electric connection
If the machine is equipped with lights for road circulation, connect them to the plug of the tractor
and verify if they work correctly.
For the machine equipped with electric control unit it is necessary to connect the connector of the
control board to the 12V plug on the tractor. If the tractor is not equipped with this plug, install the
plug supplied with the machine. This intervention must be carried out by qualified hands.
4.2.5 –Hydraulic connection
For the machines equipped with hydraulic adjusting devices it is necessary to connect the pipes to
the tractor. The machines have ½” tap couplings; any different coupling can be supplied on request.
The connection mode vary according to the plant of the tractor. Look up the instructions manual of
the tractor.
4.3 –Preparation of the mixture
During the following operations the operator shall wear appropriate personal protections.
In condition of minimum extension, there
must be a distance of 15 mm between the 2
elements of the shaft.
In condition of maximum extension, the
overlapping of the 2 elements of the shaft
must be equal to at least 1/3 of their length.

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 Value the quantity of water and agrochemical product to pour in the main tank, following
the instructions suggested in the proper chapter
 Put the machine on an even surface in such a way that the scale indicating the quantity of
liquid provides the right indication
 Pour out 80% of the water required in the main tank
 Pour out the agrochemicals in a bucket with water and mix them
 Pour out the agrochemicals in the tank through the basket strainer
 Fill up the tank in order to achieve the quantity of mixture required
 Fill up the auxiliary tanks
 Work the agitation system for at least two minutes. Proceed as follows:
Y Shut the valves carrying the liquid to the distribution booms
Y Turn on the valve of the agitation system (if the hydraulic agitation system works
with Venturi tube)
Y Make sure that the 3-way valve V1 allows the fluid suction from the main tank
Y Make sure that the 3-way valve V2 sends back to the main tank the fluid coming
from the control unit
Y Switch on the pump with a rotation rate between 450 and 540 rpm. During this
operation it is advisable that the fan be disengaged, in order to avoid waste of fuel.
V1
Diagram of the hydraulic circuit. Phase of agitation of the liquid in the main tank.
4.4 –Application to the crops
4.4.1 –Before performing the application
 Make sure that in the area to treat there isn’t any person or animal
 Mark the field and the area where the sprayer will pass
 Make sure that the crop to treat is dry (on the contrary there will be dripping ofproduct)
 Make sure that the weather conditions are suitable for the distribution (absence of wind)

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 Verify on the labels of the agrochemicals that the weather conditions are suitable for the
products (temperature, sun exposition etc.)
 Make sure that the 3-way valve V1 sucks the liquid from the main tank (same position for
mixing)
 Make sure that the 3-way valve V2 sends the liquid coming from the control unit back to the
main tank (same position for mixing)
 Check the adjustment and setting of the sprayer.
V1
Diagram of the hydraulic circuit. Phase ofdistribution.
4.4.2 –During the application
 Hold the operating parameters (engine rate and speed) valued in the phase of adjustment
 Stop the fluid delivery when turning at the end of the lines
 Do not spread out of the area
 Interrupt immediately the distribution if someone comes up to the sprayer.
4.5 –Circuit-cleaning
This operation is very important for the health of the operator and the machine safety. At the end of
the treatment, it eliminates any corrosive substance that could corrode the components or obstruct
the nozzles.
The cleaning of the circuit should be performed before any interventions on the sprayer, in order to
improve the safety of the operator.
 Verify that the auxiliary tank for the circuit-cleaning is full
 Place the 3-way valve V1 in order to suck liquid from the auxiliary tank

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 Place the 3-way valve V2 in order to send the liquid coming from the control unit to the
suction duct of the pump; in this way the dosage of mixture in the main tank does not
change
 Turn on the valves regulating the delivery of liquid to the nozzles
 Turn the pump on, with a rotation rate of about 400 rpm and advance by tractor in the field.
V1
Diagram of the hydraulic circuit. Phase of circuit-cleaning.
4.6 –Disconnection
Place the machine on an even and hard surface. Disconnect any electric or hydraulic connection.
Protect adequately any electric or hydraulic ending. Disengage the cardan shaft, at least from the
side of the tractor. Unhook the chain fixing the protection, push the button on the mouth and slip the
clutch out of the P.T.O. of the tractor and/or the splined shaft of the machine.
4.6.1 –Mounted sprayers
 Put the machine on the ground, and make sure it is stable
 Apply the hand brake, switch the engine off and remove the ignition key
 Slip out the pin of the 3-point coupling. To make this operation easy, you can vary the
length of the 3-point coupling
 Remove the spring clips from the lower pins and unthread the lower lifting booms.
4.6.2 –Trailed sprayers