Solo AccuPower 416 Operating Manual

9 416 102 english 01/2008

416

Operating manual

Important!

Read this instruction manual carefully before
first operation and strictly observe the safety
regulations!

Backpack sprayer with
rechargeable battery

Abbildung Î modellabhängig
Illustration Î depending on the version
Illustration Î selon la version
Imágene Î según versión
Figurre Î a seconda del modello
Afbeelding Î afhankelijk van de uitvoering

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Preface

Dear Customer,
We would like to thank you for choosing

this quality product from SOLO.

We use state of the art manufacturing
techniques and employ comprehensive quality
assurance measures to ensure that you are
completely satisfied with this modern SOLO
device.

We hope that it will provide you with many
years of problem-free and successful service.

To ensure that your device will continue to
work properly and deliver optimum
performance for many years to come, ensure
that you follow all instructions in this operating
and maintenance manual.

If, once you have read through these
operating instructions, anything is unclear or
there is anything you would like to ask, please
to contact your SOLO dealer or get in touch
with our service department directly.

CE Declaration of conformity

SOLO Kleinmotoren GmbH, Stuttgarter Strasse
41,D-71069 Sindelfingen, certifies that the
following product in the version as supplied

Description of product: Backpack sprayer with
rechargeable battery

Model/type description: 416

complies with the following EU guide lines:
98/37/EC and RL - 2004 - 108 EC for
electromagnetic compatibility.

Applied standards:
ISO 12100 part 1, part 2, DIN EN 294

Serial number, Build year Î Type plate

This Declaration of Conformity will become
invalid if the product is modified, changed or
altered without prior approval.

Sindelfingen,
1

st

January 2008

SOLO Kleinmotoren GmbH

Wolfgang Emmerich

Managing Director

Symbols / type plate information

The following symbols are used in these
operating instructions and on the device itself:

In the operating instructions:

Refer to the operating instructions

Caution

Smoking prohibited

No naked flames

Wear protective gloves

On the device:

Pump toggle switch (12)

:

Pump switched on, low operating
pressure, approx.1.4 bar

Pump switched off

Pump switched on, high operating
pressure, approx.2.8 bar

Electrical equipment must not be
disposed of as normal domestic
waste. Ensure that the device and all
electrical accessories are disposed of
or recycled at an official disposal or
recycling facility for electrical
equipment.

On the rechargeable battery (20):

Pb

The rechargeable battery contains
lead.
The rechargeable battery must not be
disposed of as normal domestic
waste. Ensure that you take it to an
official disposal facility.

Type plate (15):

a: Type designation
b: Serial number
c: Build year (08 Î 2008)

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Index

Page

1. Safety regulations .............................................................................................................4

1.1 Correct use 4

1.2 General safety instructions 4

1.3 Safe handling of spray pesticides 5

1.4 Safe handling of the rechargeable battery and the charger 5

1.5 Work clothing 6

1.6 Transportation of the device 6

1.7 Before and during work 6

1.8 Maintenance and repairs 6

2. Specification / special accessories .................................................................................7

3. Standard delivery ..............................................................................................................8

4. Operating / functional components .................................................................................8

5. Preparing the unit for use...............................................................................................10

5.1 Assembly 10

5.2 Charging the battery 10

5.3 Adjusting the carrying straps 11

5.4 Using the device for the first time ever or after it has been out of use for a long time 11

6. Mixing solutions and filling the solution tank...............................................................12

7. Using the backpack sprayer...........................................................................................13

7.1 Areas of application 13

7.2 Spray nozzle / delivery rates 13

7.3 Spraying 14

7.4 Residual solutions / finishing spraying 14

8. Operating and maintenance instructions......................................................................15

8.1 General operating and maintenance instructions 15

8.2 Checking the delivery rate of solution 15

8.3 Information on using the rechargeable battery 15

8.4 Replacing the fuse 15

8.5 Draining and cleaning the solution tank 16

8.6 Taking the sprayer out of service and putting it into storage 16

9. Warranty...........................................................................................................................17

10. Wearing parts ................................................................................................................17

Safety regulations

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1. Safety regulations

1.1 Correct use

• This backpack sprayer must only be used for the purpose of applying approved liquid pesticides,

insecticides, weed killer (herbicides) and liquid fertilizers available from authorised specialist dealers.

• Observe all instructions provided by the pesticide manufacturer.

• This backpack sprayer must not be used to spray any other media.

• We recommend only using pesticides that have been approved for use by the relevant authorities in

your country.

• Never use fluids with a temperature in excess of 40°C.

• The backpack sprayer with rechargeable battery must only be used for the intended purpose described

in section 7.1 (“Areas of application“) and for the areas of application described there.

• The backpack sprayer must not be used for any other purposes, e.g. for the spraying of liquid paint.

1.2 General safety instructions

Please take the time to carefully read through these operating instructions before using the
device for the first time and keep them in a safe place thereafter. Always take great care when

using the device.

You can put your life at risk by failing to follow the safety instructions. It is also important to follow any
relevant health and safety regulations that apply to your place of work. The operating instructions must be
kept available at all times wherever the device is used or stored. They must be read by anyone instructed
to use the equipment or perform work with or on the device (including servicing, maintenance and repairs).

• Persons under the age of 18 are only permitted to use this equipment to apply pesticide under

supervision, and then only for training purposes.

• Keep persons and animals away from areas in which you are working. Never spray in the direction of

other persons, animals or objects that could be damaged as a result. Bear in mind that the liquid

emerges at high speed from the nozzle. Objects could be kicked up as a result, and this could in some

cases represent a risk. The user is responsible for any hazards or accidents involving other persons

and/or their property.

• This equipment must only be hired out, lent or passed on to persons who are familiar with this type of

equipment and its operation and who have read the operating instructions. Always ensure that you

hand over the operating instructions together with the device.

• Ensure that you are in good shape, well rested and healthy when using this device.

• Never operate the equipment under the influence of alcohol, drugs or medication that could impair your

reaction speed.

• Never existing safety equipment or operating controls.

• Never use the device be used if any part of it is unsafe or if it is not in an overall condition that makes it

safe to use. Before using the device always check that it is safe to use.

• Only use accessories and add-on parts that have been supplied by the manufacturer and have been

specifically approved for installation on the device.

• The quality of any spare parts used is also an important factor in ensuring that your device is reliable

and safe to use. Always use genuine replacement parts from the original manufacturer, as these are

the only parts that have been manufactured with the same equipment and under the same conditions

as the parts originally fitted to the device. This ensures the highest possible level of quality and

accuracy of fit – vital factors in ensuring the safety, reliability and proper functioning of your device.

Genuine replacement parts and accessories are available from your authorised dealer. Your

authorised dealer will also have access to the necessary spare parts lists, from which the required part

numbers can be taken, and he will also be kept up to date about any minor improvements and

changes to the range of parts on offer. It is also important to note that the use of non-genuine

replacement parts will invalidate your warranty.

• When the device is not being used it should be safely stored in a place where it will not endanger the

health and safety of others. Switch off the motor and work through the steps in section 8.5 "Draining

and cleaning the solution tank" to prepare the device for storage. Ensure that the device is stored in a

safe place where unauthorised persons cannot access it.
Anyone who fails to follow the safety instructions, operating instructions or maintenance instructions will

make themselves liable for any damage and consequential damage caused as a result.

Safety regulations

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1.3 Safe handling of spray pesticides

• Pesticides must never be allowed to enter public sewer systems, sprayed onto wastelands, allowed to

drain into natural bodies of water or disposed of together with normal domestic waste. This also means
that appropriate care must be taken during filling to ensure that none of the pesticide is drawn back
into water pipes. Pesticides and any unused leftovers of pesticides must always be collected in a
suitable container and disposed of via approved facilities for household chemical waste. Please
contact your local authorities for information about your nearest disposal facilities.

• Avoid any direct contact with pesticides.

• Stop working immediately if you start to feel unwell while working, or if you become unusually tired.

Seek medical advice if the condition persists.

• Never allow children or anybody who is not familiar with handling this type of spraying agent to handle

the spraying agent.

• Clean the solution tank whenever the spraying agent is changed. Run the backpack sprayer with clear

water after cleaning the solution tank – but before the next spraying agent is filled – flush out any
residue from the pump and the hoses. This will prevent the risk of any chemical reactions taking place
between the different substances.

• Never spray in narrow or enclosed spaces – pesticides are toxic and there is a risk of poisoning.

Spraying equipment must for example only be used in greenhouses if adequate ventilation is provided.
Signs must be put up in greenhouses that have been treated. Nobody should enter the greenhouse
again until it has been thoroughly ventilated.

• When you have finished spraying, follow the steps in section 8.5 "Draining and cleaning the solution

tank" to prepare the device for storage, thoroughly wash your face and hands with soap, take off your
work clothing and ensure that it is washed regularly.
Any unused pesticide that is left over in the device could cause corrosion and hence damage the
device. Special attention must be paid to wearing parts like nozzles, filters and seals.

1.4 Safe handling of the rechargeable battery and the charger

• The charger must only be connected to a mains supply with an operating voltage between 100V and

240V AC 50/60Hz. It must only be connected using the correct power cable with a EURO plug and, if
required, one of the supplied adapter plugs.

- Check that the mains voltage is correct before connecting the device.

- Use the correct mains adapter plug.

- The charger must not be connected to the mains supply in countries for which no matching
mains adapter plug is supplied together with the backpack sprayer or in countries where the
mains voltage differs from the operating voltage of the charger. In this case you should contact a
local dealer to enquire about options for connecting the charger to the mains supply.

• Always hold the body of the plug when plugging it in and disconnecting it. Never pull it out by the

cable.

• The charger is only designed to recharge the rechargeable battery that is supplied by SOLO for this

backpack sprayer. Ensure that the battery is always correctly connected to the charger before
charging.

• Never connect the two terminals of the rechargeable battery (+ / -) with a conducting object (short

circuit).

• Keep the charger, the rechargeable battery and all of the electronics well away from splash water.

These areas should only be cleaned with a dry or slightly damp cloth. Before cleaning, always
disconnect the power plug from the socket and the charging cable from the charging socket on the
device.

• The rechargeable battery contains dangerous substances. Never open the battery or the charger.

• Only use the original charger to recharge the battery.

• The rechargeable battery and the charger must not be disposed of as normal domestic waste. Ensure

that you take them to an official disposal facility for electrical equipment.

Safety regulations

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1.5 Work clothing

Always wear suitable protective clothing in accordance with the relevant regulations. The clothing
must protect all parts of your body against contact with pesticides and against objects that are
kicked up – i.e. protective gloves, face protection (e.g. protective goggles), protective footwear, body

protection – e.g. rubber apron, possible breathing protection.

• Clothing should be appropriate – i.e. tight-fitting, but not obstructive.

• Never wear a scarf, tie, loose jewellery or other items of clothing that could be caught in a bush or on a

branch.

• Always wear a breathing mask when working in dense and tall plants, in well-ventilated greenhouses

and when using spraying agents that are dangerous.

• Immediately change any clothing that becomes soaked with the spraying agent.

1.6 Transportation of the device

• Always switch off the pump when transporting the device.

• To prevent damage and to eliminate potential hazards for other road users, use secure lashing

equipment to secure the device and prevent it from tipping over and falling when transporting it on a
vehicle.

• Take appropriate measures to ensure that the spraying agent cannot leak or spill. Check the solution

tank, the pump, the fuel tank and all hoses and pipes that carry the spraying agent for leaks. Before
transporting the device you should ideally work through the steps in section 8.5 "Draining and cleaning
the solution tank" to prepare the device for transportation.

1.7 Before and during work

Every time before you start using the device, check the entire device to ensure it is safe to use.

• The toggle switch on the pump must function properly.

• Check the solution tank, the pump and all hoses and pipes that carry the spraying agent for leaks.

• Never start working if there are any irregularities, if you can see any damage to the equipment

(including the support frame), if any of the adjustment settings are incorrect or if the equipment is not
working properly in any way. In this event, have your device checked by a specialist workshop.

• The device must only be operated by one person at a time. Nobody else must be within a radius of 5

metres at the same time.

• When switching the pump on, ensure that the hand valve on the spray tube is not set to continuous

spraying mode. The hand valve must be closed. Point the spray tube towards a free area.

• Always ensure that there is an adequate air change when working in restricted conditions, in tight, tall

plant growth, in well-ventilated greenhouses, in dips in the ground or in trenches.

• Always remain within calling distance of other persons who could help in the event of an emergency.

• Take breaks at regular intervals.

Never smoke in areas where you are working.

1.8 Maintenance and repairs

Only perform maintenance work and repairs yourself if they are covered in these operating instructions. All
other work must be carried out by an authorised workshop.

• The device must not be serviced, repaired or kept in the vicinity of naked flames.

• Before cleaning, servicing or repairing the device always switch off the pump and unplug the charger

from the charging socket of the device.

• The high-pressure hose (7), hand valve (8), pressure gauge (9) (depending on the version), spray tube

(10) and the nozzle attachment (11) must only be unscrewed if the pump is switched off and the device
is depressurised. To do this, with the pump switched off, hold the spray tube in the solution tank or in a
suitable container for the spraying agent and operate the hand valve.

• All repairs must only be performed using genuine replacement parts from the manufacturer.

• The device must not be altered in any way, as this could adversely affect the safety of the device and

potentially cause an accident or injury.

Specification / special accessories

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2. Specification / special accessories

Solution container, nominal volume l 20

Filling strainer mesh aperture mm 0.55

Residual volume not properly discharged by the device ml < 50

Operating pressure with standard nozzle Setting I bar
Setting II bar

Approx.1.4
Approx.2.8

Delivery rates for the spraying agent, standard nozzle
Setting I l/min
Setting II l/min

0,44
0,56

Spray tube Material
Length mm

PVC

500

Spray hose Length mm 1500

Standard spray nozzle
Part no.
Accessories Nozzle-kit Part no.

Flat jet nozzle (green) F 015-80

4074504
4900448

Mesh aperture, ball valve filter mm
Part no.

0.35

4900539

Pump Electric pump, 12 V

Rechargeable battery
Rated voltage V
Capacity Ah

Lead gel rechargeable battery

12

5

Charger Input operating voltage V
Frequency of operating voltage Hz
Rated output voltage V
Max. charging current A

100-240

AC 50/60

DC 12

1

Charging time with minimum initial battery charge
Standard battery 5 Ah h
Upgrade battery 7.2 Ah h

Approx. 5
Approx. 7

Fuse Glass fuse, 5x20 mm, 4A

SOLO part no.: 00 84 055

Possible operating time per charging cycle
With standard battery 5 Ah Setting I h
Setting II h

approx. 5.5
approx. 3.2

Charger, protection type/protection class IP 20 / II

Weight (ready for operation, tank empty) kg 6.4

Dimensions without spray tube and spray hose mm Height: 670 / Width: 380 / Depth:

250

In determining the following values regarding the acceleration of vibrations and sound, the different

operating conditions were weighted in accordance with the current standards

Sound pressure level L

Peq

(EN ISO 3744) dB(A) < 70

Sound power level L

Weq

(EN ISO 3744) dB(A) < 70

Weighted effective acceleration a

hv,eq

(EN ISO 5349) m/s2 < 2.0

Upgrade: Rechargeable battery 12 V 7.2 Ah Part no.
Charging cable for external charging Part no.

0084110
5900789

Standard delivery, Operating / functional components

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3. Standard delivery

• Standard device with hand valve pre-assembled on the high-pressure hose

• Spray tube with pre-assembled nozzle attachment

• Charger with mains cable / EURO plug and 3 mains plug adapters for different countries

• 1x sticker for the solution container for each of the following: Herbicide, Fungicide and

Insecticide.

• These operating instructions

4. Operating / functional components

View: left hand side

1. Solution tank

2. Screw cap

3. Filling strainer

4. Fill level markings

5. Spray tube holder

6. Strap holder with clip (carrying
straps)

7. High-pressure hose

8. Hand valve

9. Pressure gauge
(depending on the version)

10. Spray tube

11. Nozzle attachment

12. Pump toggle switch

13. Charging socket

14. Fuse holder

15. Type plate

16. Protective casing

17. Locking buttons

18. Drain valve

19. Drain hose, attached to the
rear panel

20. Rechargeable battery

21. Charger

22. Power cable with EURO plug

23. Mains plug adapter

Operating / functional components

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View: top, solution tank opened

View: right hand side, lower part

View: protective housing opened Charger and mains outlet adapter

Preparing the unit for use

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5. Preparing the unit for use

5.1 Assembly

The backpack sprayer with rechargeable
battery is dismantled before it is dispatched. It
must be fully reassembled again before it is
used.

Connecting the battery

Ensure that the pump toggle switch (12) is set
to "0" (pump is switched off).

Rotate the two locking buttons (17)
approximately 100° anti-clockwise to release
the protective casing.
Î Open the protective casing.

a. Pull off the lengths of protective tubing (a)

from the battery terminals..

b. Pull each double plug (b

+

, b-) right off the
bridge on the protective casing and connect
them to the correct terminal on the
rechargeable battery.

Positive terminal: connect the red cable to
the red terminal on the rechargeable battery.

Negative terminal: connect the blue cable to
the black terminal on the rechargeable battery.

Check that the double plugs are securely
connected and that polarity is correct.

Close the protective casing and twist the
locking buttons back in a clockwise direction
until they are horizontal.

Assembly of the spray tube

The O-ring (16x3 mm) is used to provide a seal
between the spray tube (10) and the hand
valve (8).
Manually tighten the union nut (a) on the hand
valve.
(Pressure gauge depending on the version)

5.2 Charging the battery

Read the safety instructions.

The rechargeable battery needs to be charged
before you can use the backpack sprayer for
the first time.
The standard battery (5 Ah) needs to be
charged for at least 5 hours, while the optional
upgrade battery (7.2 Ah) needs to be charged
for at least 7 hours.

Before charging, connect the battery as
described in the previous section.

Connect the charging cable of the charger to
the charging socket (13) of the backpack
sprayer.

Connect the charger to a suitable power supply
using the supplied power cable and EURO
plug. Use one of the supplied adapter plugs if
the supplied EURO plug does not fit in your
mains outlet.
The charger automatically adapts to any AC
50/60 Hz mains voltage between 100 V and
240 V.

While the battery is charging, the LED on the
charger lights up red. Once the battery is fully
charged, the LED switches to green and
charging stops automatically. Over-charging of
the battery is prevented.

Once the charging process is finished,
disconnect the power plug from the socket and
then disconnect the charging cable from the
charging socket on the backpack sprayer.

Preparing the unit for use

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5.3 Adjusting the carrying straps

Clip the carrying straps into the clips (6) on
both sides and lift the backpack across your
shoulders.

Use the sliding clips, adjust the shoulder straps
to the right length.

Pull the loose ends of the carrying straps to
tighten them.

Lift up the two sliding clips again to release the
straps.

When adjusting the straps, ensure that the
back panel fits snugly and securely against the
back of the person wearing the backpack.

Fit the bottom strap around the midriff of the
wearer and close the clip, again using the
sliding clips to adjust the length of the straps
as required.

5.4 Using the device for the first time ever
or after it has been out of use for a
long time

Before using the backpack sprayer for the first
time with pesticide, or if it has not been used
with pesticide for a long period of time, first
perform a trial run of the equipment with water
to check that everything is working properly
and that there are no leaks.

Ensure that you follow all safety
instructions – even during the trial run.

Trial run

:

After performing a visual inspection of the
device, fill the solution tank with approximately
5 litres of water – the drain valve (18) must be
closed (the lever should be set at right angles
to the hose).

Check all components for leaks.
Check the following components to ensure that

they work properly: pump toggle switch (12),
hand lever (8), pressure gauge (9) (depending
on the version).

Tip: During the trial run, try spraying some

water with both pressure settings to get a
feel for using the backpack sprayer.

Never start working if there are any
irregularities, if you can see any damage to the
equipment (including the support frame) or if
the equipment is not working properly in any
way. In this event, have your device checked
by a specialist workshop.

Mixing solutions and filling the solution tank

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6. Mixing solutions and filling the
solution tank

When handling the substances for

spraying, always follow the safety
instructions printed at the start of these
operating instructions (pay special attention to
section 1.3 "Safe handling of spray pesticides")
and the information provided by the
manufacturer of the particular substance being
sprayed.

Additional general rules for filling the solution
tank

Always ensure that the drain valve (18)

is closed before filling any fluids into the
solution tank (the lever should be set at right
angles to the hose).

Markings (4) are applied to the side of the
solution tank (1) to indicate the fill level. The
solution tank has a maximum capacity of 20
litres (top marking). When filling up with
correctly mixed spraying agent, ensure you do
not fill above the top marking.

The filling strainer (3) in the spraying agent
filler opening has a mesh aperture of 0.55 mm.
Always use the filling strainer when filling the
solution tank. Check the filling strainer before
filling the tank. If the strainer is damaged,
replace it with a genuine replacement part (part
no.: 4200104) with the correct mesh aperture.

When you are filling the tank with spraying
agent, switch the pump off, take the device off
your back and place it on a suitable surface on
Never allow the solution tank to overflow or
public bodies of water, rainwater drains or
sewage drains to become contaminated. Wipe
up any spilled solution immediately.

When filling the tank, always ensure that the
hand valve and the drain valve are closed.

Never mix the spraying agent directly in the
solution tank.

After filling, firmly close the screw cap on the
filling opening to prevent any solution from
escaping.

Required volumes of spraying solution
Mix the solutions in accordance with the

instructions provided by the manufacturer of
the spraying agent. Choose the appropriate
volume according to requirements.

The following are guide values for plant
protection:

• Plants cultivated at ground level – 0.3-0.5 l
per 10 m

2

• Low shrubs – 1.0-1.5 l per 10 m

2

• Espalier trees, bush trees 0.5-1.0 l per tree

• Larger bush trees 2.0 l per tree

Mixing pesticides
Only mix pesticides out in the open. Never do

this inside living spaces, stables or in storage
spaces that are used for food or animal feed.

Pesticides in powder form:

• Mix the pesticide in a separate container,
not in the solution tank.

• Ensure that the mixture is thoroughly mixed
before pouring it through the filling strainer
into the solution tank.

• Use the spray tube to mix the spraying
solution in the tank again.

Liquid pesticides:

• Fill 1/4 of the solution tank with water.

• Then pre-mix the spraying agent with water

in a separate container according to the
instructions provided by the manufacturer of
the spraying agent.

• Pour the pre-mixed solution through the
filling strainer into the solution tank.

• Top up with the required amount of water in
accordance with the manufacturer's
instructions.

• Use the spray tube to mix the spraying
solution in the tank again.

When using spraying agents that have been
mixed from herbal preparations, the liquid will
need to be pre-filtered before pouring it
through the filling strainer, as otherwise the
strainer may become blocked.

Mixing solutions and filling the solution tank; Using the backpack sprayer

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Identification of the tank contents
Attach the relevant sticker to indicate the

contents of the tank (i.e. Herbicide, Fungicide
or Insecticide).

pre-mixed

CAUTION:

Never fill different spraying agents into the
solution tank without first thoroughly cleaning
the solution tank and all parts that come into
contact with the spraying agent and flushing
the system with plenty of water. We
recommend the use of the special SOLO
cleaner for pesticide sprayers that is available
in 500 ml bottles. Part no.: 4900600

7. Using the backpack sprayer

7.1 Areas of application

This backpack sprayer is suitable for the
purpose of applying approved liquid pesticides,
insecticides, weed killer (herbicides) and liquid
fertilizers available from authorised specialist
dealers. We recommend using only pesticides
that have been approved for use by the
relevant authorities in your country.

The backpack sprayer can be used for
applications in agriculture, tree nurseries,
forestry, fruit growing, vineyards, vegetable
growing and greenhouse cultivation (provide
adequate ventilation).

7.2 Spray nozzle / delivery rates

A flat jet nozzle (green) F 015-80 (a) is pre­assembled as the standard nozzle.

The following delivery rates apply to this nozzle
when it is used in conjunction with this
particular backpack sprayer:

Pump toggle switch Delivery rates in

l/min

Setting I 0,44

Setting II 0,56

A ball valve filter (b) is fitted in the elbow piece
upstream of the spray nozzle, which minimises
any dripping from the nozzle when the hand
valve is closed. The mesh aperture of the filter
is 0.35 mm. If you need to replace the filter,
ensure that you only fit an original filter with the
part no. 4900539 with the same mesh size.

Herbicide

In

secticide

Fungicide

Using the backpack sprayer

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7.3 Spraying

Ensure that you follow all of the safety
instructions when using the backpack sprayer.

Never use the sprayer under windy conditions
or if it is raining, as this would risk widespread
drifting of the spraying agent.

Check the wind direction before starting work.
It is best to perform spraying work in the

morning or evening, as it tends to be less
windy then.

• Carry the properly adjusted and prepared

device on your back.

• Hold the spray tube at the hand valve.

• Leave the hand valve closed when you

switch on the pump (i.e. do not pull the
lever).

• Select the required operating pressure at
the pump toggle switch according to the
required range and delivery rate.
In setting II the pump automatically switches
off when the operating pressure is reached
at the hand valve. If the pressure drops
while spraying then the pump will
automatically switch back on again. This
arrangement ensures that the full capacity
of the rechargeable battery is used in the
best possible way.
In setting I, the switch-off pressure may not
always be attained even if the hand valve is
closed, and the pump will then run
continuously as a result. In this case we
recommend switching the pump off
manually via the toggle switch during breaks
in spraying.
Always completely switch off the pump via
the toggle switch before extended breaks or
at the end of spraying.

• Pull the hand valve lever (a) to spray.

The red clip can be used to secure the hand
valve in its rest position to prevent accidental
spraying.

For this, pull the lever slightly away from the
handle (a) and lock the clip (b).

Never spray towards open windows or doors,
cars, animals, children or anything else that
could be damaged by the chemicals being
sprayed.

Always proceed with the greatest of care when
spraying.

Ensure that you only cover the intended areas.

If the operating pressure built by the pump
drops noticeably and the pump fails to get the
pressure back up to the normal operating level,
stop spraying with the current battery and
recharge the battery.

7.4 Residual solutions / finishing spraying

Switch off the pump immediately when any air
is sucked in and sprayed out through the
nozzle. This is indicated by a mist being
sprayed from the nozzle. At this point the
solution tank will still contain a residual amount
of less than 50 ml. If you do not want to add
more spraying agent and wish to stop spraying
instead, dilute this leftover amount with one
litre of water and spray it on the treated area.
After switching off the pump, hold the spray
tube facing down towards the treated area and
operate the hand valve to discharge any
residual quantities of spraying agent left in the
high-pressure hose.

Never allow the pump to run with an empty
solution tank. Running the pump dry will result
in pump damage.

Switch the pump off when you finish working
with the sprayer. Follow the steps in section

8.5 "Draining and cleaning the solution tank" to
prepare the device for storage, thoroughly
wash your face and hands with soap, take off
your work clothing and ensure that it is washed
regularly.

Operating and maintenance instructions

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8. Operating and maintenance
instructions

8.1 General operating and maintenance
instructions

After running in the device for approximately 5
operating hours, check all accessible nuts,
screws and bolts to ensure that they have not
become loose. Retighten them as required.

Every time you use the backpack sprayer, first
check it all over to ensure it is safe to use.

8.2 Checking the delivery rate of solution

At least once at the start of every spraying
season, check whether the delivery rate of the
sprayer (measured in litres per minute) still
corresponds to the value indicated in section

7.2 "Spray nozzle / delivery rates".

For this, fill up the tank to the maximum
marking, start it up and spray for exactly one
minute.

Then measure the quantity of water required to
refill the tank to its maximum level.

The value measured corresponds to the
amount of water delivered by the device in
l/min for the selected operating pressure. This
value must not deviate by more than 10 %
from the value indicated in section "7.2 Spray
nozzle / delivery rates".

If the actual value is too low, this may be
caused by deposits in the nozzle. Clean the
nozzle and repeat the test.

If the actual value is too high, this may be due
to wear or damage to the spray nozzle.

When checking the solution delivery rate of the
device, also check whether the nozzle is
producing an even, fan-shaped spray pattern.

8.3 Information on using the
rechargeable battery

When used properly, the rechargeable battery
will remain in good working order for many
years. It is important to note that the
rechargeable battery should never be fully
discharged.

If the operating pressure built by the pump
while spraying drops noticeably and the pump
fails to get the pressure back up to the normal
operating level, stop spraying with the current
battery and recharge the battery.

If the backpack sprayer with rechargeable
battery is not used for an extended period of
time then we recommend recharging the
battery once a month with the supplied
charger. This will prevent the battery from
deep-discharging.

Alternating between two batteries
We recommend purchasing a second

rechargeable battery if you need to be able to
keep working indefinitely without having to stop
when the battery is dead. Also remember to
order the SOLO charging cable, part no.:

5900789. This second charging cable will allow

you to recharge the second battery
independently of the backpack sprayer.

When alternating between two batteries you
can use one of the rechargeable batteries to
run the sprayer while the second rechargeable
battery is recharged by the charger via the
separate charging cable. The batteries are
easy to swap – simply open the protective
casing and undo the Velcro strap. Ensure that
the polarity is correct when the cables are
connected to the rechargeable battery (see
section 5.1) and that the battery is firmly
secured with the Velcro strap.

8.4 Replacing the fuse

Replacement glass fuses (5x20 mm 4A) are
available to order from your local SOLO dealer
under the part no. 0084055.

To replace the fuse, release the fuse holder
(14) with a screwdriver (turn it half a turn anti­clockwise) and then pull it out.
After inserting a new fuse, slide the fuse holder
back in and lock it by twisting it half a turn
clockwise.

If the fuse blows repeatedly have the device
checked by a specialist workshop before
returning it into use.

Operating and maintenance instructions

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8.5 Draining and cleaning the solution
tank

Draining the solution tank

• Place the backpack sprayer level on a

horizontal surface.

• Rotate the two locking buttons (17)

approximately 100° anti-clockwise to
release the protective casing.
Î Open the protective casing.

• Hold the end of the discharge hose (19) into

a suitable container.

• Open the drain valve (18) (the lever should

be set parallel to the hose).

• After draining: Close the drain valve (the

lever should be set at right angles to the
hose) and reattach the discharge hose to
the rear panel.

• Close the protective casing and twist the

locking buttons back in a clockwise direction
until they are horizontal.

Drain the solution tank daily after use and
thoroughly flush it with water. Please read and
observe the cleaning instructions in the
instructions for use supplied with the pesticide.
We recommend the use of the special SOLO
cleaner for pesticide sprayers that is available
in 500 ml dosing bottles. Part no.: 4900600

Clean the filling strainer, the ball valve filter at
the spraying nozzle and the spraying nozzle
periodically with water using a soft brush. Do
not use your mouth to blow through the spray
nozzle!

After cleaning, leave the solution tank open to
dry.

8.6 Taking the sprayer out of service and
putting it into storage

Work through the steps in section 8.5 "Draining
and cleaning the solution tank" to prepare the
device for storage.

Store the device in a secure, dry and frost-free
location under a maximum ambient
temperature of 35°C.

There must not be any open fires or similar
nearby.

Even when the unit is not in use, regularly
recharge the battery (and the spare battery if
you have one) once a month with the supplied
charger.

Ensure that the unit cannot be used by
unauthorised persons, in particular children.

Warranty, Wearing parts

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9. Warranty

The manufacturer guarantees problem free
quality and will cover the cost of replacing
parts which are found to be faulty in material or
show manufacturing defects within the
prescribed guarantee period after the date of
purchase. Please note that specific guarantee
conditions may differ from country to country.
When in doubt, please ask the vendor of the
goods. The vendor of the product is
responsible for guarantee applications.

We hope you will understand that we cannot
be liable for damage resulting from these
causes:

• Non-compliance with operating
instructions.

• Neglecting required maintenance and
repair jobs.

• Wear from normal use.

• Using non-approved tools.

• Use of force, improper treatment, misuse

and accidents.

• Attempted adjustments and repairs by
non-qualified persons.

• Use of unsuitable spare parts or non­original parts if such parts are the cause of
the damage.

• Use of non-approved media in the solution
tank.

• Damage caused by using the product in
the hire or rental industry.

Normal cleaning, adjustments or maintenance
jobs cannot be claimed as part of the
guarantee.

All guarantee work must be carried out by a
service centre authorized by the manufacturer.

10. Wearing parts

Various parts are subject to application-specific
wear or to normal wear and must be replaced
in good time if necessary. The following parts
are subject to normal wear and are not
covered by the manufacturers guarantee:

• All rubber parts that come into contact
with the spraying agent

• Spray nozzle

• Filters

• Seals

• Rechargeable battery

• Fuse

In the best interest of continued technological
progress we reserve the right to change the
design and configuration of any product
without prior notice.

For that reason, no claims can be accepted
with reference to text and illustrations in this
manual.

Made in Germany

SOLO
Postfach 60 01 52
D 71050 Sindelfingen

Tel. [phone]
Fax [phone]
[e-mail]

SOLO
P.O.Box 60 01 52
D 71050 Sindelfingen
Germany
Phone[phone]
Fax [phone]
[e-mail]