TransTank TopCrop Service manual

Operator’s HandBook
TopCrop™
www.tti.com.au
Manufacturer of “The Safest Tanks in Motion”

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Product HandBook
TopCrop™
Contents
Safety 4
General Safety Instructions 5
General Information 6
Specifications 6
Description 7
Machine Limitations 9
Driving Stability 9
Spray Boom Calibration 9
Calibration Procedure 9
TopCrop Operating Instructions 12
Before first use 12
Filling the TopCrop Sprayer Tank 13
Operating Instructions 14
Petrol Pump Operation 15
Quick Fill Kit 17
Clean-up and Decontamination 20
Maintenance 21
Periodic Checks 21
Maintenance Tasks 22
Maintenance Schedule 22
Trouble Shooting 26
TopCrop Sprayer Pump 26
SuperReel (Optional) 26
Risk Assessment 27
Warranty 28
Warranty Policy 28
What this Warranty Does Not Cover? 28
How to Obtain Service Under this Warranty? 28
Warranty Limitations 28

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Disclaimer
All information, illustrations, and specifications contained in this manual are based on the latest product
information available at the time of this publication’s printing. TransTank International (TTi) reserves the right
to alter and substitute specifications and methods at any time, in line with our commitment to continuous
improvement.
No patent liability is assumed with respect to the use of information contained within this manual. While
every precaution has been taken in the preparation of this manual, TTi assumes no responsibility for errors or
omissions.
Thank you for purchasing a TTi TopCrop™ Professional UTE Slip-On Field
Sprayer (TopCrop), which will provide many years of reliable service when
operated and maintained in accordance with this manual.
TTi manufacture a range of TopCrop sprayer units, from 300 through to 1,000 litre tanks, all supplied
with a petrol operated pump and a hose reel. This manual describes the operation, driving stability and
maintenance procedures applicable to all units, noting additional requirements to options where necessary.
All TTi TopCrop sprayer tanks are rotationally moulded from quality polyethylene, purpose designed and
manufactured to high standards. The TopCrop sprayer is a slip-on unit for the back of a utility or trailer and
designed for water, herbicide or pesticide spraying.
The TopCrop sprayer is supplied complete, tested and ready to mount to your vehicle. TTi warrants that the
TopCrop sprayer has been designed and built for its intended purpose as a water, pesticide and herbicide
spray unit.
The owner is responsible to ensure that the equipment is operated in accordance with this manual, with
Australian WorkSafe requirements, applicable road rules and local council regulations. TTi is not liable for
any loss, injury or death resulting from the failure to observe all safe working regulations as required by law.
Included with your TopCrop sprayer are the following documents:
• Operator’s Handbook (this manual, which includes the Warranty Registration Card)
• Honda petrol engine handbook
• Bertolini pump data sheet (includes link to download pump manual). TTi recommends that you download
this manual.
• Tank Quality Check Form. This is your verification that the unit has been quality checked, and verifies
the serial number affixed to the unit.

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Safety
This manual is intended for use by personnel experienced in the use of this and similar equipment. Read and
understand this manual before attempting to operate or perform routine maintenance on this equipment.
Your safety is of prime priority.
A NOTE highlights or clarifies an essential systems description,
operating or maintenance procedure, condition or statement.
A WARNING highlights an essential operating or maintenance
procedure, practice, condition or statement, which, if not strictly
observed, could result in injury or death of personnel, or long-term
health hazards.
A CAUTION highlights an essential operating or maintenance
procedure, practice, condition or statement, which, if not
observed, could result in damage or destruction of equipment.

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General Safety Instructions
1. This unit is designed and manufactured solely for the purpose of carrying and spraying herbicides and
pesticides. Under no circumstances should it be used for any other purpose. It must never be used for
transporting fuel.
2. Only authorised and trained personnel are to operate this equipment. Operators must have read and
fully understood this manual before operating the TopCrop sprayer.
3. Do not operate the TopCrop sprayer anywhere near bystanders, livestock, watercourses or any non-
targeted vegetation that may be in danger from spray drift contamination.
4. Wind direction and speed must be taken into account, as windy conditions may endanger the operator
or damage to adjacent non-target vegetation. Avoid spraying on hot and sunny days or when wind speed
exceeds 6.5km/h.
5. Do not operate this equipment while under the influence of alcohol or any drugs that could impair your
capabilities in any way.
6. Personal Protection Equipment (PPE) must be worn when operating the petrol pump on the TopCrop
sprayer. Exposure to excessive noise over an extended period can cause impairment or loss of hearing.
7. PPE appropriate to the chemicals being used must be worn at all times when operating the TopCrop
sprayer. As a minimum, the PPE should include coveralls, gloves and boots. A face shield and PVC apron
are recommended depending on the task. It is recommended that the following documents should be
read and understood by the operator:
• Australian Standard for Chemical protective clothing AS3765
• Australian Standard for Respiratory protection devices AS1715
8. Ensure the capacity of the vehicle is suitable for the loaded mass of the TopCrop sprayer. Refer to
the vehicle’s operator manual for safe working loads, correct securing points and relevant safety
instructions. Do not exceed the carrying and braking capacity as specified by the vehicle manufacturer.
As a guide, one litre of water weights one kilogram (kg), therefore a full 400 litre TopCrop sprayer will
weigh in excess of 500kg.
9. The unit must be securely restrained on the vehicle. Ensure all fasteners are tightened and secure
before operation.
10. Care should be taken at all times, particularly when operating on rough or steep terrain. Drivers should
be aware of fluid surge affecting the vehicle’s centre of gravity.
11. The TopCrop sprayer must never be left unattended while being filled with fluids.
12. Do not operate the pump when there is no fluid in the tank.
13. Do not disconnect any hoses, nozzles or filters while the equipment is operating. Disconnecting any
components while under pressure may result in uncontrolled fluid discharge which may be hazardous.
14. Ensure any electrical connections are properly configured, to prevent damage such as shorting or
reverse polarity.
15. At completion of the operation, switch the pump off and relieve any residual pressure by squeezing the
spray gun trigger.
16. At completion of the operation, decontaminate the TopCrop sprayer tank and hose lines. Drain any
residue chemicals and store in a sealed container. Dispose of any unwanted chemicals and tank rinse
residue in accordance with current environmental and workplace health and safety regulations.
17. The TopCrop sprayer has safety labels affixed to various locations on the unit. These labels should be
kept clean and legible, and replaced if damaged.
18. Any unauthorised modifications to this equipment may affect its function and create a serious safety
risk. Any unauthorised modifications will void any warranty on the unit.

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General Information
Specifications
Tank UV stabilised, chemical resistant polyethylene tank, fully drainable
– 300 to 1,000 litres
Standard Equipment Honda GX200 petrol engine
Bertolini pump – 22L/min
Fabricated galvanised steel frame with forklift pockets
Pressure regulator
30m hose reel with 10mm hose and pistol grip spray gun
Options Remote control auto rewind SuperReel with 50m FrictionFree™
nylon hose and Turbo spray gun
Bertolini pump – 75L/min (recommended for optional 8m spray
boom)
Compact Spray Booms – 4m, 6m and 8m spray swath (for 400
to 1,000 litre units), complete with electrically operated solenoid
control valve
Quick Fill Unit, comprising suction hose, floating filter and venturi
hydro injector

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TopCrop™
Description
The TTi TopCrop sprayer is designed to carry and distribute herbicides, pesticides or water using a self-
contained petrol driven pump. The TopCrop sprayer has the following features, refer to Figure 1.
Figure 1 – Component Identification
Tank
All TTi tanks are constructed from UV resistant, virgin material polyethylene. The tank is fully drainable and
includes a level sight tube to provide an accurate level indication of fluid within the tank. The tank inlet is
fitted with an internal basket strainer under the twist lock filling cap.
Tank size options for the TopCrop sprayers are:
• 300 litres
• 400 litres
• 500 litres
• 600 litres
• 800 litres
• 1,000 litres
Tank Level Indicator
A level sight tube is fitted to the tank and provides an accurate level indication of fluid within the tank.
Pump
The TopCrop sprayer is fitted with a Honda GX200 petrol pump coupled to a 22 L/min Bertolini pump as
standard. Available as an option is a 75 L/min Bertolini pump, which TTi recommends when the optional
Compact Spray Boom is fitted.
If the spray gun (or optional spray boom) is not in operation when the pump is running, the fluid bypasses
back into the tank via the hose operation lever at the pressure regulator.

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30m Hose Reel and Spray Gun
The TopCrop has a manually operated hose reel containing 30m of 10mm diameter hose connected to a
trigger actuated spray gun with adjustable brass nozzle. The hose is pulled out manually from the reel and
retracted using the handle on the side. The spray gun is stowed in a fabricated holder at the side of the hose
reel.
The nozzle adjusts from jet through to mist sprays by rotating the nozzle head. When the trigger is squeezed,
the fluid is discharged; when the trigger is released, the fluid bypasses back into the tank.
50m SuperReel and Spray Gun
An optional electrically operated SuperReel containing 50m of FrictionFree™ hose connected to a trigger
actuated spray gun with adjustable nozzle is available. The hose is pulled out manually from the reel and
electrically retracted using the supplied remote control. An Anderson plug is fitted to the rear of the
SuperReel, ready for connection to a 12-volt power supply from the tow vehicle.
The spray gun nozzle adjusts from jet through to mist sprays by adjustment of the lever adjacent to the
trigger. When the trigger is squeezed, the fluid is discharged; when the trigger is released, the fluid bypasses
back into the tank.
Pressure Regulator
A pressure regulator and pressure gauge are fitted to the pump discharge flange to control line pressure
and prevent pump cavitation. The regulator is adjustable depending on the operation requirements – for the
optional spray boom, the regulator is to be set to approximately 3 bar; with spot spraying via the hose reel
the regulator is set to approximately 5 bar.
Hose Operation Lever
A manually operated lever is fitted adjacent to the pressure regulator and has two positions:
• BYPASS – directs the fluid back into the tank
• HOSE – for operation of the hose.
The lever should always be set to the bypass position when starting the pump and switched to the HOSE
position when starting spray operations.
Suction Filter
Adjacent to the pump a filter is installed on the suction line. The filter has a removeable filter element for
easy cleaning.
Compact Spray Boom
Available as an option, the TopCrop can be fitted with a Compact Spray Boom for 400 to 1,000 litre units.
The galvanised boom has steel plate protected non-drip nozzles fitted with TeeJet AIXR Air Induction spray
tips. The boom incorporates a break-away feature to prevent damage if the unit hits an obstacle, and easily
folds for transportation and storage.
The Compact Spray Booms are available in a 4m, 6m and 8m spray swath, with the 8m boom recommended
for the 600 litre and above tank capacities.
The Compact Spray Boom options are supplied complete with an electrically operated solenoid valve with
remote ON/OFF switch, powered directly from the vehicle’s 12V power supply socket.

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Quick Fill Unit
An optional quick fill unit is available, enabling water to be drawn directly from a dam or river at a maximum
height of up to 2m below the top of the TopCrop tank. The unit includes a 6m suction hose with floating filter,
venturi hydro injector and connector hose from the pump, to drive the venturi injector. The venturi injector
requires a minimum of 30 litres of water in the TopCrop tank in order to draw from water supply.
Frame
The chassis frame of the TopCrop sprayer is an all steel, fully welded construction and hot dip galvanised
for corrosion resistance. The frame incorporates forklift pockets and tiedown points for easy loading,
unloading and securing from the vehicle.
Machine Limitations
The TopCrop Field Sprayer is subject to operating limitations. It is the operator’s responsibility to
ensure that this equipment is being operated safely and within these limitations.
Driving Stability
The TopCrop sprayer is heavy when filled with fluid. To maintain stability while operating this unit:
• Ensure the vehicle tyres are inflated to their correct pressure at all times. Underinflated
tyres can cause excessive lateral motion of the tyre, which may cause a rollover.
• Allow extra room for braking and turning when the tank is full.
• Ensure any side gradient (slope) is accounted for, especially when the TopCrop sprayer
tank is full, as the vehicle may have a higher centre of gravity.
Spray Boom Calibration
When a Compact Spray Boom is optioned, it must be calibrated before first and subsequent use. Accurate
calibration is an essential element of any spraying function as it ensures that the chemical is applied at the
rate specified on the product label. Application in excess of the recommended rate may be dangerous, can
damage crops and is uneconomical.
• Calibration must be carried out:
• When spraying for the first time with new spray equipment
• At the beginning of each season
• After changes of nozzle tips, spraying pressure or vehicle speed
• After every 100 hectares of spraying
PPE appropriate to the chemicals being used must be worn at all times when calibrating the OnDeck. As a
minimum,thePPE shouldincludecoveralls,glovesandboots. AfaceshieldandPVCapronarerecommended.
Calibration Procedure
Check the label on the chemical container for the application rate and recommended spray nozzle type,
refer to Figure 3, which shows the TeeJet AIXR nozzle application chart. To apply a specific rate of chemical
to the target surface, work out the:
• total sprayer output,
• travel speed, and
• the swath width.

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Using these parameters, the application rate is calculated as follows.
Measure Total sprayer output [L/min]
Set the pressure at the correct level for spraying determined by the type of nozzles. All nozzles used for
spraying should be left on. For initial trials, set the pressure regulator at approximately 2 bar and adjust as
needed.
• Fill the spray tank with clean water, refer to Filling the TopCrop Sprayer Tank procedure below. Run the
sprayer at the correct pressure with all nozzles operating.
• Place a measuring jug under first nozzle for one minute, then measure how much water is in the jug.
• Repeat for all nozzles. Nozzle output should not vary by more than 10%. If it does, the nozzle could be
worn or damaged and should be replaced.
• Add all the jug measurements to find the total sprayer output in litres per minute.
Measure the travel speed [km/h]
The normal speed for spraying with small boom sprayers is 4–10 km/h. The slower the travel, the higher the
application rate. Adjust travel speed to suit ground conditions.
• Measure how many seconds it takes to travel 100 metres with the sprayer attached and half full.
• Calculate your travel speed by inserting the time in seconds into the following formula: Travel speed
(km/h) = distance travelled in metres (say 100m) x3.6 / Time taken (in seconds)
Calculate spray application rate [L/Ha]
First, measure the swath width in metres. For general broadcast spraying, the swath width is equal to the
number of nozzles multiplied by the nozzle spacing. For band spraying the swath width is equal to the total
of all the band widths. Calculate the application rate using the following formula:
Application rate (L/ha) = (600 x total sprayer output (L/min)) / (swath width (m) x travel speed (km/h))
Example: If total sprayer output is 5 L/min, speed is 8 km/h, and swath width is 6m, Application rate = (600
x 5 = 62.5 L/ha)/(6 x 8 )
If the application rate is less than specified, increase the pressure and repeat calibration to achieve the
correct rate. Once the required rate is achieved, note the following parameters for future reference when
using this chemical:
• Nozzle Fitted
• Type (Drop Size)
• Application Rate
• Spray Pressure
• Forward Speed

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Figure 2 – AIXR Application Chart

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TopCrop Operating Instructions
Before first use
Your TopCrop Field Sprayer is delivered fully assembled and ready to be fitted onto your vehicle. If a Compact
Spray Boom has been optioned, this will be supplied separately, ready for mounting to the TopCrop’s frame
once the unit is mounted onto the vehicle. Before use, the TopCrop needs to be set up using the following
instructions:
• Complete the warranty registration online at www.tti.com.au/warranty-registration, or use the Warranty
Registration Card at the back of this handbook.
• Store this handbook, along with the Tank Quality Check Form and pump unit’s manual in a safe and easily
accessible place for future reference.
WARNING: The operator must fully understand all aspects of this
handbook. Do not operate the TopCrop if you are unfamiliar with its
operation until you have read this handbook.
• Read and thoroughly understand this handbook, paying particular attention to all safety requirements,
before using the TopCrop for the first time.
• Check that all fittings, valves, hoses and electrical leads are secure following transit, and are not
damaged in any way.
• Inspect the tank for any damage or abrasions that may have occurred during transit.
CAUTION: The unit must be securely mounted to the vehicle. Failure
to do so may result in the unit moving or falling off the moving vehicle.
Warranty is conditional on the unit being correctly mounted.
• Position your TopCrop sprayer onto the vehicle and mount securely to the tray. If using tie-down straps,
they must be rated to at least the total mass of the unit when filled with fluid. Alternatively, the integrated
tank frame may be bolted to the vehicle.
• If a Compact Boom has been optioned, fit the mounting brackets to the TopCrop frame. The brackets
have multiple mounting points for the boom, to enable optimum boom height, depending on the vehicle
tray height.
• Refer to the supplied pump unit’s manual and prepare the engine for use, such as filling its tank with fuel.
CAUTION: Ensure any electrical connections are configured correctly
to prevent shorting or reverse polarity. Warranty is conditional on
the electrical systems being correctly connected.
• When optioned with the SuperReel, connect the supplied electrical cable to the Anderson plug at the
base of the SuperReel and connect the other end to the vehicle’s battery (via alligator clips).

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• When optioned with a Compact Spray Boom, connect the feed hose to the electrically operated
solenoid valve fitted to the outlet of the pump. Carefully route the supplied electrical control cable from
the solenoid valve into to vehicle’s cab and plug it onto the 12V power supply socket or cigarette lighter
socket.
Filling the TopCrop Sprayer Tank
Your SuperTrail Spray Trailer is delivered assembled and ready to be connected to your tow vehicle or
tractor. Before use, it needs to be set up using the following instructions:
CAUTION: Ensure the filling area is in an open, well ventilated space
if filling with chemicals. Follow the instructions provided with the
chemicals or the applicable Safety Data Sheet.
Mixing and filling the TopCrop sprayer should be undertaken at a carefully chosen site, away from any risk
of spillages draining into water courses or into environmentally sensitive areas. Children and animals must
always be kept away from mixing and filling operations.
The unit’s tank is filled as follows:
• Open the tank filler by twisting the handle and lifting the cap.
• Withdraw the internal basket strainer and inspect it for any debris. Clean it if required and reinstall it into
the top of the tank.
• Follow the chemical manufacturer’s instructions and safety precautions carefully, taking note of the
order in which the products are added to the tank.
• Measure the correct quantities of chemicals using clean measuring containers specifically for this
purpose only, then add the chemicals to the tank.Rinse out the measuring containers and any empty
containers and pour all rinsing liquid into the TopCrop sprayer’s tank.
CAUTION:The TopCrop sprayer must never be left unattended while
being filled with fluid.
• Top up the tank with water to the required level, ensuring it is not overfilled. A sight tube is located on the
tank, providing a visual indication of the fluid level in the tank.
• Thoroughly mix the contents by stirring with a suitable paddle or starting the pump with the hose
operation lever set to the BYPASS position.
• Upon completion of filling the TopCrop sprayer tank, replace the filler cap and twist the handle to tighten.
• Wash off any spillage from outside the tank.
WARNING:Do not overfill the tank. This may result in chemical
spillage.

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• Close the chemical supply containers and store appropriately. Any empty containers must be thoroughly
rinsed and set aside for collection and disposal in compliance with environmental and work safety
requirements.
Operating Instructions
The TopCrop sprayer is started and operated as follows:
NOTE: Suitable PPE must be worn by the operator when conducting
hose spraying operations.
WARNING: Do not spray in windy conditions, where spray drift
contamination may occur.
• Position the vehicle at a suitable point of the operations area.
• Confirm the tank contains the required water or chemical quantity by observing the fluid level at the level
sight tube.
NOTE: Ensure the pressure regulator is set to the minimum position.
• At the pump, check that the pressure regulator is set to the minimum position by turning the knob anti-
clockwise, refer to Figure 3.
Figure 3 – Pump Arrangement

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• Check that the operating lever is in the BYPASS position.
• If fitted with the optional Compact Spray Boom, check that the electrically operated solenoid valve is
closed.
• Start the pump, refer to Petrol Pump Operation procedure below. The fluid will now be circulating through
the system and returning to the tank via the bypass circuit.
• For spraying operations, refer to:
• Hose Spray Operation
• Compact Spray Boom Operation.
Petrol Pump Operation
The TopCrop’s petrol pump engine is started as follows, refer to Figure 4:
• Turn the ignition switch to ON.
• Turn the fuel tap to ON.
• Set the choke lever to the closed position.
NOTE: Ensure the engine’s throttle is set to idle if the engine is cold.
Do not adjust the throttle to maximum speed until the engine has
warmed up.
• Check that the throttle is set to the idle position. If restarting a warm engine, the throttle can be left at
normal engine operating speed.
• Grasping the pull-start handle, firmly pull to start the engine. This may need to be repeated 2-3 times. If
the engine fails to start, refer to the supplied Honda engine manual.
Figure 4 – Petrol Pump Details

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• When the engine starts, slowly move the choke lever to the open position.
• Once the engine is warmed up, slowly increase the engine speed to a medium setting, which should
result in the required performance while minimising the fuel consumption and excessive engine noise.
• When the engine needs to be stopped, turn the ignition switch to the OFF position.
If the TopCrop sprayer is not going to be used within the next few hours, shut the system down as follows:
• Set the engine throttle lever to the idle position.
• Turn the fuel tap to OFF.
Hose Spray Operation
The TopCrop unit hose spray operation is conducted as follows:
CAUTION: Ensure not to over-run the hose when pulling it out from
the reel, as this may damage the hose or the fittings.
• Pull the hose to unwind it from the hose reel.
• With the pump running, turn the operating lever from BYPASS to the PRESSURE position.
• Turn the pressure regulator knob clockwise to the required pressure – approximately 5 bar for hose
spraying operation is recommended, which can be fine-tuned as required.
• Aim the hose’s spray gun in the required direction and squeeze the trigger. Adjust the spray pattern by
operating the lever on the spray gun handle, refer to Figure 5.
• Use a constant speed when spraying and release the trigger at the end of each swath or change of
direction, to prevent overdosing. Work in parallel lines when spraying large areas, rather than swinging
from side to side.
• At the end of the task, release the spray gun trigger and turn the hose operation lever to the BYPASS
position. The fluid will automatically recirculate through the system and return to the tank via the bypass
circuit until the pump is switched OFF.
• Referring to Petrol Pump Operation section, switch the pump OFF.
• Aiming the spray gun/s in the required direction, squeeze the trigger to release the residual pressure in
the hose, which will result in a small amount of fluid discharging.

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Figure 5 – Spray Gun (typical)
• With the hose pressure released, the hose is ready to stow back onto the TopCrop’s hose reel. If fitted
with the standard 30m hose reel, proceed as follows, refer to Figure 6:
• Turn the handle at the side of the hose reel to wind it onto the spool, guiding the hose as necessary
to ensure even distribution across the width of the reel.
• Allow enough slack in the hose to stow the spray gun in its holder beside the reel.
• Lock the reel into one of the four locking positions to prevent the hose unwinding during transit.
• If fitted with the optional 50m SuperReel, proceed as follows, refer to Figure 7:
• Apply a little tension to the hose, to ensure the hose does not flip off the spool upon starting.
• Press the button on the remote control supplied with the TopCrop’s SuperReel to start retracting
the hose. The hose will wind on to the reel’s spool, guided by the integrated fairlead.
• Release the button when the hose is retracted, allowing enough slack in the hose to stow the spray
gun in its holder beside the SuperReel.
Figure 6 – 30m Manual Hose Reel Operation

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Figure 7 – SuperReel Operation
Compact Spray Boom Operation
WARNING: Before commencing spraying, plan the work effectively
to minimise potential contamination of adjacent areas.
The optional Compact Spray Boom, once calibrated for the task, does not require any adjustments prior
to operation. The spray boom is operated as follows:
WARNING: Do not spray in windy conditions, where spray drift
contamination may occur. Spray drift can be reduced by lower nozzle
height, lower pressures or by fitting larger nozzles.
• Position the vehicle at the starting point of the operations area.
NOTE: Ensure the solenoid operated isolating valve for the boom is
CLOSED.
• Ensure the cable-mounted switch to the solenoid actuated spray boom valve is set to OFF.
• Start the pump and set the engine speed and the pressure regulator to the correct setting as determined
during calibration. The fluid will now be circulating through the system and returning to the tank via the
bypass circuit.

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• From the vehicle’s driver’s seat, open the valve to the spray boom by turning the solenoid valve remote
switch to ON (refer to Figure 8). The fluid will now start to discharge from the boom spray nozzles.
• Commence driving the vehicle at the speed determined during calibration to achieve the required spray
outcome.
• At the end of each swath or before turning around, turn the spray boom’s solenoid actuated valve remote
switch to OFF. When commencing the next swath, turn the switch back to ON.
Figure 8 – Solenoid Operated Spray Boom Valve and Remote Switch
Quick Fill Kit
Where required, the TopCrop can be filled with water directly from a dam or river using the optional Quick
Fill Unit as follows, refer to Figure 9:
NOTE: The Quick Fill Unit requires some water in the tank to operate
the venturi hydro injector.
• Ensure there is at least 30 litres of water already in the tank, as this is required to create the venturi
effect.
• Open the lid on the tank, to allow venting when the venturi hydro injector is operating.
• Position the TopCrop unit close to the water supply, such that the water is less than 2m lower than the
top of the TopCrop tank’s venturi hydro injector.
• Connect the 6m suction hose to the venturi hydro injector, placing the floating filter end into the water.
• Start the pump as described above.
• At the pump discharge manifold, open the valve to the hose connecting the pump to the venturi hydro
injector. Water will start pumping to the injector, which will create the venturi effect to draw water from
the supply into the tank.

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CAUTION: The TopCrop sprayer must never be left unattended while
being filled with fluid.
• Observing the level sight tube, stop the pump when the tank is filled.
• Close the venturi supply hose valve at the pump discharge manifold.
• Disconnect the suction hose, drain and clean the filter, then stow the hose.
Figure 9 – Quick Fill Unit
Clean-up and Decontamination
After use, the TopCrop sprayer unit must be thoroughly decontaminated inside and outside – including the
pump, hoses and spray gun – to avoid damage to crops from any harmful spray residues. Decontamination
also prevents sprayer corrosion and abrasion.
Cleaning the TopCrop sprayer should be undertaken at a carefully chosen site, away from any risk of
spillages draining into watercourses or into environmentally sensitive areas.
The recommended decontamination procedure is as follows:
NOTE! Suitable PPE must be worn by the operator when cleaning
and decontaminating the TopCrop sprayer. Follow the instructions
provided with the chemicals or the applicable Safety Data Sheet.
WARNING! Ensure the cleaning area is in an open, well ventilated
space, and any flushing water is captured to prevent runoff into
watercourses or into environmentally sensitive areas.