Silvan Selecta Rakpak Plus User manual

Instruction Manual
Rakpak Plus 70L 12V Sprayers
VICTORIA (HEAD OFFICE)
244- 264 Greens Rd,
Dandenong South, 3175 Australia
Telephone: [phone]
Facsimile: [phone]
www.silvan.com.au
NEW ZEALAND
22 Sunshine Avenue
Te Rapa, Hamilton, 2001 New Zealand
Telephone: [phone]
Fax: [phone]
www.silvannz.co.nz
SILVAN AUSTRALIA PTY. LTD.
ABN 48 099 851 144
MANRP50-4 Rev H 20/02/17

No liability can be accepted for any inaccuracies or omissions in
this publication, although due care has been taken to make it as
complete and accurate as possible.
The information, illustrations and technical data were considered
to be correct at the time of preparation.
In accordance with our policy of continuous development Silvan
Australia Pty. Ltd. reserves the right to make changes at any time
without notice.
YOUR SPRAYER DETAILS
Record the details of your Rakpak Sprayer here for future reference when discussing
service with your Silvan dealer, ordering service parts or making a warranty claim.
DATE OF DELIVERY _____________________________
SELLING DEALER ________________________________________________
ADDRESS ________________________________________________
TELEPHONE NO. _____________________________
PRODUCT CODE _____________________________
SERIAL NUMBER _____________________________
INSTALLED BY _____________________________

the Silvan
Warranty
This warranty is the only warranty applicable to Silvan new products ('Products') and, to the
maximum extent permitted by law, is expressly in lieu of any other conditions or warranties expressed
or implied in relation to the Products.
Subject only to legislative obligations to the contrary, Silvan shall not be liable for incidental or
consequential damage resulting from ownership or use of a Product.
Silvan does not authorize any person to create for it any other obligation or liability in connection with
these products.
Silvan warrants its authorised Dealer, who in turn warrants the original purchaser (owner) of each new
Silvan product that it will repair or replace the product, or, pay the cost of repair or replacement, as
determined by Silvan without charge for labour or any defective or malfunctioning parts in accordance with
the warranty limitations and adjustment schedule below.
The warranty period begins on the date the product is delivered to the first retail purchaser for a period of 12
months
This Warranty Covers
Only conditions resulting directly from defects in workmanship or material under normal use and service.
Warranty Exclusions
The Warranty does not cover:
Conditions resulting from misuse, use of incompatible chemicals, exceeding machine specifications
including overloading, impact damage, negligence, accidental damage or failure to perform
recommended maintenance services.
Any product which has been repaired by other than an authorised Silvan service outlet in a way
which, in the sole and absolute judgement of Silvan, adversely affect its performance or reliability.
The replacement of maintenance items such as diaphragms, batteries, V belts and ground engaging
components, etc.
Loss of time, inconvenience, loss of use of the product liability to third parties or any other
consequential damages.
Incidental costs associated with a warranty repair including any travel costs, out of hour’s labour
charges, cleaning costs, transportation costs, freight costs or any communication costs.
The repair of a defective product qualifying under this warranty will be performed by any authorised Silvan
service outlet within a reasonable time following the delivery of the product, at the cost of the owner, to the
service outlet’s place of business. The product will be repaired or replaced, using new parts supplied by
Silvan. Silvan, in its absolute discretion, may choose to pay the cost of replacement or repair of the product.
The owner is responsible for the performance of regular maintenance services as specified in the
Owner/Operator Manual applicable to the product. Failure to carry out regular maintenance may invalidate
warranty
New Product Warranty Policy

Safety Instructions
Before attempting to operate or install the sprayer carefully read and take note of the following
safety warnings.
Failure to comply with these warnings may result in serious injury or death.
Warning ! This sprayer is designed and manufactured solely for the purpose of applying agricultural chemicals to plants.
Under no circumstances may it be used for any other purposes.
Warning ! Prior to installing or using the sprayer all operators must have read and fully understand the contents of this
instruction manual and the safety decal fitted to the sprayer.
Warning ! Never allow an inadequately trained person to install or operate the sprayer.
Warning ! When installing the sprayer on a vehicle do not exceed the vehicle manufacturer’s specified safe load and
carrying capacity when the sprayer tank is full. Exercise extreme care when operating in hilly or uneven terrain
to ensure proper stability. Refer also to the vehicle manufacturer’s operating and safety instructions.
Warning ! Stability may be affected by water surging inside the spray tank.
Warning ! Refer to the chemical manufacturer’s label for correct use and safe handling instructions of chemicals before
filling or using the sprayer. Always wear the recommended safety clothing and equipment when handling
chemicals and operating the sprayer. Ensure that all operators and associated personnel are familiar with the
legal regulations and codes of practice that apply to the safe use, storage and disposal of spray chemicals
Warning ! Before carrying out maintenance work, wash the sprayer thoroughly to remove all toxic chemicals that may
contaminate the sprayer.
Warning ! Never point the spray gun at any person or any part of the human body.
Warning ! Do not pump flamable liquids or operate the pump in an explosive environment.
The wording of the Safety decal is shown below. All operators must be
made aware of the decal and follow its instructions.
The decal must be fitted to the machine at all times in the location
shown. If the decal is missing or unreadable it should be replaced by
ordering a new decal from your Silvan dealer under part number,
DEC 48.

Specifications
IMPORTANT INFORMATION ABOUT SPOT SPRAYERS
To ensure long life of this spot sprayer please read the following.
This product features a positive displacement diaphragm pump with a pressure sensing switch. The pressure switch
interrupts power to the pump when the system pressure builds towards maximum and power is resumed to the motor when
the pressure falls. The pressure switch does not in any way substitute for a pressure regulator.
When the spray lance trigger is depressed fluid is released and the pressure will drop allowing the pressure switch to resume
power to the pumps motor.
Depending on your spraying requirements you may need to change or adjust the nozzle to suit your desired droplet size or
spray pressure.
If the pump is subjected to rapid pulsation/cycling during normal operation, or for infrequent periods it may reduce
the life of the pump. Applications which exhibit rapid pulsation/cycling should have restrictions in the nozzle minimized
by fitting a larger (less restrictive nozzle) Pulsation can cause premature failure of the pressure switch or pump; these
failures are not as a result of the workmanship of the component.
Spotpak’s fitted with the Smoothflo model pump are designed not to pulsate and should stop pumping when the valve or
spray gun trigger is released. If the pump fails to stop pumping the pressure switch may require re-adjustment to lower the
max shut off pressure by a 1/16” Allen head screw on the head of the pump.
It is therefore highly recommended that the user performs the appropriate sets-up of the Spot Sprayer to maintain user safety
and facilitate in trouble free usage, long pump life.
GENERAL
The Silvan 70 litre Rakpak Plus is a compact portable sprayer. Whether you are a commercial grower, or hobby farmer,
you will find many uses for this unit. The tank, pump and spray lance fittings are corrosion resistant and suitable for
applying weedicides, herbicides, insecticides, fungicides, miticides, organic and green formulations.
It has been solely designed for mounting on four wheel ATV. The Rakpak is designed for spot spraying but may be used
in conjunction with a boom for boom spraying.
SPECIFICATIONS
PUMP AND CONTROLS
There are different models available. All feature Viton
Valves and Santoprene diaphragm with an On-Off pressure
sensing power switch
Spot Spray Pumps
Shurflo 8000 series, 12 volt DC electric pump. Open flow
Capacity 6.8 L/minute or Maximum pressure 60psi.
Aquatec 552 Series Smoothflo 12 volt DC electric, 7 L/min
open flow, Max 120psi on demand electric pressure switch.
Boom Spray Pumps
Shurflo 2088 series, 12 volt DC electric pump. Open flow
capacity of 11.3L/minute or Maximum pressure 45psi.
Aquatec 555 Series 12 volt DC electric, 12 L/min open
flow, Max 60psi on demand electric pressure switch.
The 552 Series Smoothflo pump is designed with adaptive
pressure sensing technology that prevents pressure spikes
while maintaining higher pressures and flows
On-Off power switch mounted to the protective pump cover
for ease of use and are supplied with 3 metre power loom
with alligator clamps for connection to 12 volt battery and a
rubberised fuse holder on positive lead fitted with
TANK
70 Litre translucent tank moulded from U.V. stabilized
and impact resistant polyethylene.
135mm filler neck with screw on anti-spill breather lid.
Calibrated fill mark moulded into tank as well as
recesses for locating tie down straps and spray lance for
transport.
FILTRATION:
Wire mesh foot filter on suction line, removable for
cleaning.
DELIVERY HOSE: 6 metre length, 8 mm I.D.
SPRAY GUN Lightweight, 600mm Stainless steel
lance with adjustable nozzle.
DIMENSIONS 70 LITRE
Length 800 mm
Width 850 mm
Height 390 mm
Weight (dry) 12 kg
Nominal capacity 70 litres
Maximum Capacity 55 litres

Installation
FITTING TO A VEHICLE
Position the sprayer on the vehicle so as to minimise chemical contamination to the operator. Face the pump away from
the operator to minimize the risk of contamination due to hose failure.
The sprayer should be securely attached to any ATV or other type of vehicle that it is installed on. The transverse
recesses moulded into the top of the tank can be used to positively locate tie down straps, which should be firmly secured
to approved attachment points on the ATV or other vehicle.
The sprayer should be mounted centrally and as near to the
centre of gravity of an ATV as possible. It should not
protrude so as to cause an obstruction. Refer to the
manufacturer’s instructions for appropriate load limits and
fitting positions.
Never fill the spray tank to a capacity beyond the specified
overall weight limit set by your vehicle manufacturer.
Note : 1 litre of water = 1 kg.
Warning ! Do not exceed the the vehicle manufacturer’s
specified safe load and carrying capacity.
CONNECTING TO 12 VOLT DC SUPPLY
The sprayer requires a 12 volt DC power source to operate
the pump, such as the vehicle battery. The wiring loom is
fitted with alligator clamps to facilitate connection to a
normal vehicle battery The red clamp should be connected
to the positive terminal and the black clamp to the negative
terminal.
If you need to extend the wiring loom use wire of the same
gauge or thicker.
SAFETY FUSE
The positive (red) lead incorporates a 10 amp automotive
type fuse in a rubberised holder. This protects the pump and
vehicle electrical system from damage should a short circuit
occur. If a fuse should blow determine the cause of the
short circuit before replacing the fuse.
10 amp fuse
Positive (red)
Negative (black)
ON/OFF SWITCH
The on/off switch mounted on the metal cover operates the pump. It should be switched off when the pump is not in use or
when the tank is empty to prevent unnecessary drain of power and overheating and damage to the pump.
Hold-down strap recesses
On/off switch

Operation
Turn nozzle to adjust
spray pattern
Depress lever to spray
Move red catch back to lock
lever in ‘on’ or ‘off”
position. Only if safe to do
so.
After spraying is completed, drain unused chemicals from the tank. Rinse the tank with clean water then operate the
sprayer with clean water in the tank to clean out the pump, hose and spray lance. Do not leave chemicals in the tank as
they may settle and form solids that may block the filter.
If heavy frosts are experienced, run the sprayer until the pump and spray lines are dry. This will prevent water freezing
in the pump or spray lines and damaging the sprayer.
Warning ! Dispose of unused chemical and water used for rinsing in a manner that will not endanger people, animals or
the environment in accordance with local regulations and the handling and disposal information available
from the Chemical manufacturer.
SETUP AND TESTING.
It is always recommended that you first test all spray equipment thoroughly with clean water.
Silvan Rakpack’s are supplied with a blue adjustable nozzle containing a large orifice, which when twisting the tip can allow
for a greater flow of liquid. It is recommended that adjustable nozzle is used first with the spray gun and can be changed later
if you require.
Release the elastic straps that secure the spray hose to the tank and remove the lance and hose from the transport recesses on
the tank.
1. Be sure to wear safety equipment as recommended by the chemical manufacturer before adding chemical to the sprayer
2. Check the suction line foot filter is clean and undamaged (see Maintenance section).
3. Fill the tank with clean water.
4. With the 12 volt supply connected and the 6 meter spray hose and spray lance connected. Fit the blue adjustable nozzle
or any large orifice nozzle you may wish to use.
5. Check all hoses, hose clamps and connections for leaks or damage.
6. Switch the pump ON.
7. Depress the spray lance trigger. The pump is self priming and will start spraying within 30 seconds.
8. Check the hose connections for leaks, if any are found stop the pump and rectify the problem before continuing.
9. By twisting the tip of the nozzle to the coarsest droplet size, the restriction to flow is minimized and pump pulsation will
not occur.
10. Slowly twist the tip of the nozzle from a course droplet size to a fine droplet to your preference. If the pump begins to
pulsate/cycle you may require a different nozzle that is rated to allow for higher flow rates at your selected droplet size
at approximately.
11. Once the nozzle is set and the pump operates free of pulsation/cycling, the spot sprayer is ready to be utilized for spot
spraying of chemical.
Important note: Spray units must not be operated while the pump is pulsating/cycling because it can cause component
failure.
Chemical solution may now be added to the tank.
Follow the mixing instructions and safety precautions provided by the chemical manufacturer. Before adding concentrated
chemicals, partially fill the tank with water then add the chemical and complete filling with water.
Wear all the safety equipment recommended by the chemical manufacturer before adding chemical to the sprayer and whilst
conducting spraying operations.
For safety the spray gun has a catch that can be used to lock the lever closed to prevent accidental spraying. The catch can
also be used to lock the lever open for continuous spraying. This should only be done when safe to operate in this manner
and where there is no likelihood of inadvertently spraying any person or property that may suffer damage.

After spraying rinse out the spray lines and tank with clean water
CLEANING THE FILTER
To check the filter, remove the filler cap and hook the suction hose out with a bent piece of wire. To avoid chemical
contamination do not put bare hands in the tank to remove the filter. Appropriate protective equipment including gloves
should be used whenever maintenance is carried out. Clean the filter with a bristle brush, do not use a wire brush or sharp
object as this may damage the mesh. The filter can be pulled from the suction hose if necessary for cleaning. When
reinstalling the filter in the tank press the suction hose into the recess to keep the filter on the bottom of the tank so that it
will fully empty.
Maintenance