Oleo-Mac MB 90 Manual

GB OPERATOR’S INSTRUCTION BOOK
RUS PУKOBOДCTBO ПO ЭКCПЛУAТAЦИИ
Воздуходувка-распылитель MB 90

24
18
19
20
21
22
E
C
D
D
AB
4
3
5
6
1
2
11
10
9
12 13
14
7
8
17
16
15
23
1
2

1
3
21
B
A
B
3 4
6
8
12
5
10
11
7
9

1
2
3
4RCJ6Y
0,5 mm
13A
13B
17A
17B
15
19
14 16
18A 18B
16
14
234567
17
15
12 1 13 8 9 10 11

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TRANSLATION OF ORIGINAL INSTRUCTIONS
INTRODUCTION
For correct use of the machine and to avoid
accidents, do not start working until you have
read this manual carefully. You will nd
explanations concerning the operation of the
various parts plus instructions for necessary
checks and relative maintenance.
NOTE: The descriptions and illustrations
contained in this manual are not binding. The
manufacturer reserves the right to undertake
any modications it deems necessary without
revising this manual.
In addition to the operating instructions, this
manual contains paragraphs that require your
special attention. Such paragraphs are marked
with the symbols described below:
WARNING: where there is a risk of an accident or
personal, even fatal, injury or serious damage to
property.
CAUTION: where there is a risk of damaging the
machine or its individual components.
WARNING
RISK OF HEARING DAMAGE
IN NORMAL CONDITIONS OF USE, THIS
MACHINE MAY EXPOSE THE OPERATOR TO A
PERSONAL DAILY NOISE LEVEL EQUAL TO OR
HIGHER THAN
85 dB (A)
CONTENTS
1. SAFETY PRECAUTIONS (precautions
for using the machine safety)
21
2.SYMBOLS AND SAFETY WARNINGS
(explanations on how to identify the
machine and the meaning of the
symbols)
23
3. MAIN COMPONENTS (position of the
main parts that make up the machine)
23
4.ASSEMBLY (explanations on how to
remove the packaging and assemble
detached parts)
23
5. STARTING 24
6. STOPPING THE ENGINE 27
7. USING THE MACHINE 27
8.MAINTENANCE (all information
required to keep the machine at peak
eciency)
31
9. TRANSPORTING 33
10. STORAGE 33
11. ENVIRONMENTAL PROTECTION
(advice on using the machine in ways
that respect the environment)
33
12. TECHNICAL DATA (a summary of the
main specications of the machine)
34
13. DECLARATION OF CONFORMITY 35
14. WARRANTY CERTIFICATE (a summary
of the warranty conditions)
36
15.TROUBLESHOOTING (helps you to
quickly solve any problems you may en-
counter while using the machine)
37
1. SAFETY PRECAUTIONS
WARNING - If correctly used, the mist
blower is a quick, easy to handle and ecient
tool; if used improperly or without the due
precautions it could become a dangerous tool.
For pleasant and safe work,always strictly
comply with the safety rules that follow and
throughout this manual.
WARNING: The ignition system of your
machine produces an electromagnetic eld
of very low intensity. This eld could interfere
with certain pacemakers. To reduce the
risk of serious or fatal injury, persons with
pacemakers should consult their doctor or the
manufacturer of the pacemaker before using
this machine.
WARNING: – National regulations could
limit use of the machine.
1. Do not use the mist blower until you have
completely urderstood the specic operating
methods. First time users must familiarize
themselves thoroughly with the operation of
the machine before working in the eld.
2. The mist blower must only be used by adults
in good physical condition with knowledge of
the operating instructions.

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17. Do not use the mist blower near to electrical
equipment and electric lines.
18. Do not knock or force the rotor blades; never
work with damaged rotors.
19. D o n o t u s e t h e m ist blower with
inammable and/or corrosive substances.
20. Do not assemble the rotor on other motors or
power transmissions.
21. Do not obstruct or close the rotor air intake.
22. Do not utilize the machine for uses dierent
from the ones specied in the manual (see
pag. 27).
23. Never leave the machine unattended with the
engine running.
24. Please note that the owner or the user is
responsible for any accidents or damage to
third parties or their property.
SAFETY PROTECTIVE CLOTHING
When working with the mist blower, and
indeed whenever crop-spraying chemicals are
being handled (transport, storage, mixing,
maintenance of equipment, etc.), always wear
and use the appropriate PPDs. The use of
Personal Protective Devices is essential, otherwise
the operator will run the risk of exposure to
hazardous chemicals. Consult your trusted
supplier to choose an adequate equipment.
The clothing must be proper and not an obstacle.
Wear adherent protective clothing. Full-body
overalls are best. Do not wear clothes, scarves,
ties or bracelets that can stuck into twigs. Tie up
and protect long hair (example with foulards,
caps, helmets, etc.).
Safety boots having skid-proof sole and anti-
piercing insert.
Wear protective goggles or face screens!
Wear an approved breathing apparatus when
spraying liquids or powders.
Use protections against noises; for example
noise reduction ear guards or earplugs. The
use of protections for the ear requests much
3. Do not use the mist blower when physically
tired or after having taken alcohol, drugs or
medication.
4. Never wear scarves, bracelets or anything else
which could be taken up by the rotor. Wear
suitable protective gear (PPDs), especially
gloves, overalls, goggles and ear defenders.
5. Never allow bystanders or animals to remain
within your working area when starting or
working with the mist blower.
6. Always work from a rm-footed and safe
position.
7. Keep hands well away from the rotor or
attempt to service the mist blower while the
engine is running.
8. Check the mist blower each day to ensure
that each device, whether for safety or
otherwise, is functional.
9. Never use a damaged, modied, or
improperly repaired or assembled mist
blower. Do not remove, damage or
disactivate any of the safety devices.
10. Only use the mist blower in well-ventilated
places. Do not operate the mist blower
in explosive atmospheres, in closed
environments or near inammable
substances.
11. Only t rotors supplied by the manufacturer
to the mist blower power takeo.
12. When the mist blower is at the end of its
useful life, do not simply dump it; either
return it to the dealer or take it to a waste
collection and recycling centre.
13. Only loan your mist blower to expert users
who are completely familiar with mist blower
operation and correct use. Give other users
the manual with operating instructions,
which they should read before using the mist
blower.
14. Keep this manual on hand and consult it
before each use of the tool.
15. All labels with health hazards must be kept
in good conditions. In case of damage or
deterioration, immediately substitute them
.
16. Never start the machine without rotor. It will
cause serious demages to the engine parts as
well as the withdrawal of the guarantee.

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more attention and caution, because the
perception of danger audio signals (screaming,
alarms, etc.) is limited.
Wear gloves oering superior vibration-
absorbing properties and protection against
contact with chemicals.
2. SYMBOLS AND SAFETY WARNINGS (Fig.19)
1. Danger due to the use of toxic substances in
mixture and liquid tanks
2. Read user manual
3. Must wear protective overall
4. Must wear ear protection
5. Must wear face mask
6. Must wear safety footwear
7. Must wear gloves
8. Do not release residual liquids in the
environment
9. Do not drink
10. Do not remove protection device while the
fan is working
11. Objects thrown by machine, keep safety
distance
12. This symbol indicates Warning and Caution
13. Poisonous substance
14. Serial number
15. CE conformity marking
16. Type of machine: MISTBLOWER
17. Year of manufacture
3. MAIN COMPONENTS (Fig.1)
1. Frame
2.
3. Spark plug
4. Starter handle
5. Engine cowling
6. Fuel tank
7. Harness
8. Cushion
9. Elbow tube
10. Flexible tube
11. Control handle
12. Blower tubes
13. Liquid cock
14. Diusor
15. Wide spray jet
16. Chemical tank
17. Vibration mounts
18. Mixture preparation bottle
19. Combination wench
20. M5x65 screws (no.2)
21. M6 nuts (no.2)
22. 90 mm dia. hose clamps (no.2)
23. Liquid pipe
24. Bypass
4. ASSEMBLY
Assembling the tubes/handgrip
WARNING – When tting the tube and
nozzle, the engine must be o and the switch
in the STOP position.
To assemble the mist blower read the following
instructions.
Machine components
Refer to Fig.3:
1. Insert the elbow tube into the fan casing.
2. Secure the elbow with the two screws and
two nuts supplied using the hex wrench
incorporated in the spark plug wrench
(supplied).
3.
tightening them.
4. Fit the exible tube onto the elbow tube
cone (A,
mist blower tube; now tighten the two hose
clamps using the supplied wrench.
5.
6.
pipe (12).
7. When you have found the right position,
block the handle by lowering the block lever
8.

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5. STARTING
FUELING
WARNING: Gasoline is an extremely
ammable fuel. Use extreme caution when
handling gasoline or fuel mix. Do not smoke
unit.
·To reduce the risk of re and burn injury,
handle fuel with care. It is highly ammable.
· Mix and store fuel in a container approved for
gasoline.
· Mix fuel outdoors where there are no sparks or
ames.
· Select bare ground, stop engine, and allow to
cool before refueling.
· Loosen fuel cap slowly to release pressure and
to keep fuel from escaping around the cap.
· Tighten fuel cap securely after refueling. Unit
vibration can cause an improperly tightened
fuel cap to loosen or come o and spill
quantities of fuel.
· Wipe spilled fuel from the unit. Move 3 metre
away from refueling site before starting engine.
· Never attempt to burn o spilled fuel under
any circumstances.
· Do not smoke while handling fuel or while
operating the unit.
· Store fuel in a cool, dry, well ventilated place.
· Never place the machine in a combustible area
such as dry leaves, straw, paper, etc.
· Store the unit and fuel in an area where fuel
vapors cannot reach sparks or open ames
from water heaters, electric motors or switches,
furnaces, etc.
· Never take the cap o the tank when the
engine is running.
· Never use fuel for cleaning operations.
· Take care not to get fuel on your clothing
9. In case you want to exclude the passage
of liquids through the handle, connect the
liquid hoses as shown in square B, using the
plastic transparent connector present in the
spanners bag.
10. To get a wide exit, insert the wide spray jet
(15, Fig.1) on the spreader (14).
Adjusting the control handle
Correct positioning of the control handle is
extremely important in order to work
comfortably with the mist blower. To adjust the
control handle position:
1. Raise the locking lever (1, Fig.5).
2. Find the most comfortable working position
by sliding the control handle and adjusting
its angle.
3.
control handle by lowering the locking lever.
Adjusting the harness and quick release
WARNING - The harness must be adjusted
with the engine stopped.
Before using the mist blower it is extremely
important to ensure the weight of the machine is
correctly balanced on your shoulders. This is done
by adjusting the length of the shoulder straps
until the machine is perfectly in contact with your
back and shoulders.
Note that correct balancing of the machine is
especially important when working on gradients.
To tighten the shoulder straps pull as shown in
To loosen the shoulder straps lift the buckle with
In the presence of danger, release the machine
from your shoulders by proceeding as follows:
1. Use one hand to press the quick release tabs
on the right-hand shoulder strap (shown in
2. Accompany the machine by bending your
upper body slightly to the left: the mist blower

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commend the use of the additive Emak ADDITIX
2000 code 001000972 if the mixture is to be
stored for 12 months.
Alkylate gasoline
CAUTIONS – Alkylate fuels have dierent
density than normal fuel. Therefore engines,
set with normal fuel, need dierent H jet
regulation to avoid critical issues. For this
operation it’s necessary turned at a Licensed
Service Dealer.
Filling the tank
stir the mixture well before refuelling.
Using the supplied bottle (Fig.10)
To facilitate refuelling operations, each machine
is supplied with a bottle for preparation 50:1 (2%)
two-stroke mixture.
Refer to Fig.10 and proceed as follows to prepare
one litre of mixture:
1. Fill the bottle with petrol up to position 1.
2. To prepare a 50:1 (2%) mixture add oil up to
position 2.
3. Screw the cap onto the bottle.
4. Shake the bottle for at least 30 seconds.
The mixture is now ready and can be used to
refuel the mist blower.
If you are using a petrol can to prepare the
mixture, make sure the container is clean and mix
for at least a minute to ensure the oil is properly
dissolved in the petrol. The oil percentages are
shown in the tables below.
WARNING: Follow safety instruction for
fuel handling. Always shut o engine before
fuelling. Never add fuel to a machine with a
running or hot engine. Move at least 3 m from
refuelling site before starting engine. DO NOT
SMOKE!
1. Clean surface around fuel cap to prevent
contamination.
2. Loosen fuel cap slowly.
3. Carefully pour fuel mixture into the tank.
Avoid spillage.
4. Prior to replacing the fuel cap, clean and
GASOLINE OIL A
2% - 50:1
ℓℓ
(cm3)
1
5
10
15
20
25
0,02
0,10
0,20
0,30
0,40
0,50
(20)
(100)
(200)
(300)
(400)
(500)
This product is powered by a 2-cycle engine and
requires pre-mixing gasoline and 2-cycle oil. Pre-
mix unleaded gasoline and 2-cycle engine oil in
a clean container approved for gasoline.
RECOMMENDED FUEL: THIS ENGINE IS
CERTIFIED TO OPERATE ON UNLEADED GASOLINE
INTENDED FOR AUTOMOTIVE USE WITH AN
OCTANE RATING OF 89 ([R + M] / 2) OR HIGHER.
Mix 2-cycle engine oil with gasoline according to
the instructions on the package.
We strongly recommend the use of 2% (1:50)
Efco - Oleo-Mac two cycle engine oil, which is
specically formulated for all air-cooled two-
stroke engines.
The correct oil / fuel proportions shown in the
table (Fig. A) are suitable when using the
PROSINT 2 and EUROSINT 2 or an equivalent
high-quality engine oil (JASO specication FD
or ISO specication L-EGD).
CAUTION: DO NOT USE AUTOMOTIVE OIL
OR 2-CYCLE OUTBOARD OIL.
CAUTION:
- Match your fuel purchases to your
consumption; don’t buy more than you will
use in one or two months;
- Store gasoline in a tightly-closed container
in a cool, dry place.
CAUTION - For the mixture, never use a
fuel with an ethanol percentage higher than
10%; gasohol (mixture of gasoline and
ethanol) up to 10% ethanol or E10 fuel are
acceptable.
NOTE - Prepare only the quantity of mixture
required for immediate use; do not leave fuel in
the tank or a container for a long time. Were

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· Check that the switch (2, Fig.13A) is in position
“1” (on).
· Place your left hand on the engine cowling
and your left foot on the frame to keep the
machine steady.
· Use your right hand to pull the handle (4, Fig.1)
until you encounter slight resistance. Without
releasing the rope, pull with a short sharp
· When you hear the engine re for the rst
time raise the choke lever (B, Fig.12) toward
its vertical position until it clicks into place
(Fig.11).
· Pull the handle once again to start the engine.
Keep the engine at idle speed for at least one
minute before accelerating to full revs.
Starting with a warm engine
· Press the primer bulb (A, Fig.12) fully down,
slowly, 10 times.
· Raise the choke lever (B, Fig.12) until you hear
a click.
· Check that the switch (2, Fig.13A) is in position
“1” (on).
· Place your left hand on the engine cowling
and your left foot on the frame to keep the
machine steady.
· Use your right hand to pull the handle (4, Fig.1)
until you encounter slight resistance. Without
releasing the rope, pull with a short sharp
· Keep the engine at idling speed for at least one
minute before accelerating to full revs.
· Remove the spark plug (3, Fig.1) using the
supplied wrench, then clean it and dry it.
· Check that the choke lever B is in its horizontal
position as shown in Fig.11.
· Pull the starter handle (4, Fig.1) at least 20
times.
·
to the max revs position (4, Fig.13).
· Start the engine.
If the engine fails to start, proceed as follows:
· Remove the spark plug using the supplied
inspect the gasket.
5. Immediately replace fuel cap and hand
tighten. Wipe up any fuel spillage.
WARNING: Check for fuel leaks, if any are
found, correct before use. Contact a Servicing
Dealer if necessary.
Controls handle (Fig.13A)
· To accelerate press throttle trigger (1) together
with safety lever (3).
· To start the engine switch (2) must be set to“1”.
·
speed, press safety lever (3) and move lever
(4) towards the “+” mark until obtaining the
required engine rpm. To disable the xed
speed setting, return the lever to the “-”
position.
· To stop the engine, set switch (2) to “0”.
Observing the Fig,13B:
The switch (5) activate or block the automatic
opening of the liquid tap included in the handle.
· When the switch is in low position, the opening
of the tap is automatic while accelerating. With
the throttle at the idle, the tap remains closed.
· When the switch is in high position, the tap is
always open whatever it is the position of the
throttle. To slide the switch (5) upward, it is
necessary to press simultaneously the throttle
lever (1, Fig.13A).
Starting
Before starting the engine:
·
· Check that the switch (2, Fig.13A) is not in
· Make sure that there is no one near the
machine and/or in front of the mist blower
tube.
Starting a cold engine (engine stopped for
more than 30 minutes)
· Press the primer bulb (A, Fig.12) fully down,
slowly, 10 times.
· Lower the choke lever (B, Fig.12) until you hear
a click.

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7. USING THE MACHINE
RULES OF USE
The series of this mist blower are built for
agricultural use. The materials used withstand
normal chemical products for agricultural
spraying used when built.
Alternative use of the machine is not permitted,
we do not answer for eventual damages caused
by aggressive chemicals or thick sticky products.
MACHINE USE IS HIGHLY PROHIBITED TO PEOPLE
UNDER THE AGE OF 18.
The present manual is valid for the back carried
mist blower with axial fan for phytosanitary
treatment in orchards, vineyards, and diverse
kinds or types of arboreal row cultivation.
Plan your work carefully and intelligently.
Establish the exact expanse and connes of the
area to be treated, before commencing work.
WARNING - Keep a constant watch on
conditions in the area being treated: do not
direct the jet at people or animals. Stop the
machine immediately if anyone approaches.
PRECAUTIONS FOR THE WORK AREA
- Do not work near electrical cables or buildings.
- Work only in conditions oering sucient
visibility and light to see clearly.
- Do not walk backwards when using the
machine.
- Stop the engine before setting the mist blower
down.
- Be particularly cautious and alert when
wearing ear protectors, as these can restrict
your ability to hear sounds indicating danger
(shouts, signals, warnings, etc.)
- Be extremely careful when working on slopes
or uneven surfaces.
PROHIBITED USE
Use of this machine is strictly prohibited with
these products:
- Paints of any kind or type
- Paint solvents or diluents of any kind or type
- Fuels or lubricants of any kind or type
- GPL or gases of any kind or type
- Inammable liquids of any kind or type
wrench, then clean it and dry it.
· Turn the engine upside down with the spark
plug bore facing downward.
· Pull the starter handle (4, Fig.1) at least 20
times and check whether fuel drips from the
spark plug bore.
· Dry the surfaces around the spark plug bore.
·
with the throttle lever (1, Fig.13) in the max
speed position and the choke lever (B) in its
horizontal position as shown in Fig.11.
·
CAUTION:
- Never wrap the starter cord around your
hand.
- When pulling the starter rope, do not use
the full extent of the rope as this can cause
the rope to break.
- Do not let starter rope snap back. Hold the
starter handle (4, Fig.1) and let the rope
rewind slowly.
BREAKING-IN THE ENGINE
The engine reaches the maximum power after
5÷8 hours of activity.
During this period of breaking-in do not use the
engine at wide open throttle without load, to
avoid excessive functioning stress.
WARNING! - During the breaking-in
period do not vary the carburetion to obtain a
presumed power increment; the engine can be
damaged.
NOTE: It is normal for smoke to be emitted
from a new engine during and after rst use.
6. STOPPING THE ENGINE
Set the throttle lever to idle position (1, Fig. 13)
(2, Fig. 13).

28
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used wrongly or without attention.
We advise that the machine be used by trained
people (licensed) and have carefully read the user
instructions written on the container.
WARNING: Certain spray products,
particularly high-concentration ones,
can react aggressively with the machine
components. For more information on the
characteristics of the products used, contact
the after-sales service for the spray products
in question.
NORMS TO FOLLOW FOR THE USAGE OF
CHEMICAL PRODUCTS
Damage and injury prevention methods
- Careful stocking, in secure places with denied
access to strangers and children.
- Handle products with care wearing antiacid
rubber gloves, protective glasses – face masks
or protective helmets, water-repellent or TIVEK
overalls, rubber boots or similar.
- In case of eye contact or ingestion of chemical
products or mixture consult a doctor, and take
the nameplate of the product ingested with
you.
- Garments that come in contact with chemical
mixture being pure or diluted, must be carefully
washed before being re-used.
- Do not smoke, drink and eat during the
preparation or distribution of the mixture, and
also near to or inside plots of ground already
treated.
- Treat plots of ground respecting safety
distances from neighborhoods, watercourses,
roads, sports centers, public greens or paths of
public use.
- Empty chemicals containers should be rinsed
out repeatedly with clean water, dried, and put
into special plastic disposal bags. The rinse
liquids can be used subsequently for the crop
treatment.
- Empty containers must be taken to designated
collection centres, in accordance with national
statutory regulations and local bylaws.
Containers must never be dumped or disposed
of as normal refuse, and must not be reused for
any other purpose.
- Liquids containing grains or consistent solids
- Liquids food both animal and human
- Mixture of various non-compatible chemical
products
- Solid fertilizer liquids or in suspension, with
crumb and/or very dense
- Liquids with temperatures higher than 40°C.
- Products that do not pertain to the specic use
of the machine.
- Do not use the mist blower to put out res.
The mistblower is not a re extinguishing
device.
RULES OF COURTESY
- Observe local bylaws and regulations
regarding the times when mistblowers can be
used. Do not operate the machine in early
morning or late afternoon and evening.
- Check the direction and strength of the wind.
Do not direct the jet at people, animals, motor
vehicles or dwellings.
- Do not blow debris toward open windows or
doors.
- Be permanently watchful for persons passing
close by.
- Do not leave the mist blower running when
unattended.
- Use the lowest throttle setting possible for the
job in hand.
DUST SUPPRESSION
- Do not use the mist blower to move excessively
dusty or powdery materials.
- Do not direct the air jet at the following
materials:
· Large quantities of gravel or powdery
aggregate
· Building site debris
· Gypsum powder
· Cement and concrete dust
· Dry garden surface dust
· Burning material
· Silicate powders
· Materials containing asbestos
USE OF CHEMICAL PRODUCTS
All pesticide or herbicides products can be
harmful both to man and to the environment if

29
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Position of the
regulator of Litres/
minute
Position of
the regulator Litres/
minute
1 0,1 6 3,0
2 0,7 7 3,2
3 1,4 8 3,4
4 2,1 + 3,5
5 2,7
The mist blower MB90 / AT900 is designed in
order to perform treatments with the same
the vertical direction; to make more comfortable
such treatments, the machine is equipped with a
rotating elbow (9, Fig.1).
FILLING OF THE LIQUID TANK
· Place the machine on the ground in a smooth
site.
· Verify the closing of the liquid tap (A, Fig.4)
presents on the throwing pipe.
· Unscrew the cap of the liquid tank by rotating
it in counterclockwise sense.
· Check the correct position of the blue sieve
· Spill the product into the tank through the
sieve.
· If the user of the machine is a man, be careful
to not exceed the mark of 16 liters present on
the tank. If the user of the machine is a woman,
the mark to be respected is that of 11 liters.
· It is possible to ll the liquid tank till its
maximum capacity of 17 liters but, to respect
the peak load’s weight (men), in the mixture
tank must not be more than a liter of fuel
(approximately half tank).
· Close the cap of the tank by rotating it in
clockwise sense.
WARNING - Respect the level of permissible
maximum weight. The markings on the tank
show the level limits that should be observed so
as not to exceed recommended weights: 30 kg
for men, 20 kg for women. This weight is the sum
- After spraying, carefully wash the mist blower
diluting residual with a quantity of water at
least 10 times higher than residual, and
redistributing the obtained mixture on the
treated eld.
- Intensify control of the state of the membrane
after using aggressive chemical products;
accurately wash the complete system after
using copper hydroxide.
- There must be a supply of clean water on hand
near the site where the treatment is being
carried out.
PRECAUTIONS AGAINST FIRE
Do not approach the mist blower with re or heat
sources.
METEROLOGICAL CONDITIONS
It is advised to treat early in the morning or in the
latter part of the afternoon avoiding the warmer
hours of the day.
Never treat before or while raining.
Never treat with strong wind or with winds
higher than 3/5 meters per second.
REGULATOR OF THE LIQUIDS FLOW
On the throwing pipe (12, Fig.1) is present the
liquid tap (A, Fig.4) that allow the opening and
Fig.4).
Rotate the spreader (B, Fig.4) clockwise or
counterclockwise sense to select one of the 9
positions desired.
Please refer to the following table that give
positions of the regulator. Please note that:
·
full throttle (max RPM), the throwing pipe in
horizontal position and using clean water;
can change.
·
the use of ULV attachment if you need an
accurate dosage of the chemicals.

30
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How to obtain a correct micronization of the
product:
1.
the graduated regulator (B, Fig.4) from 1 (less
quantity of liquid, the greater will result the
dimension of the drop.
2. By the regulation of the revolutions of the
engine. The bigger is the quantity of air, the
smaller will result the dimension of the drop.
USE AS A BLOWER
Your mist blower can be used as a blower for
cleaning purpose.
· Always open throttle lever gradually until
engine reaches the proper revolution before
starting blowing.
· Blowing regulate engine revolution depending
on your needs, maybe it is not necessary to run
the engine at maximum revolution..
· You can use the wide blow outlet as standard.
Use the small outlet if you need more air
power, for example for blowing on a wet
ground.
WARNING - Pay always attention to any
possible objects that can be present in the area
you are going to clean (pieces of broken glass,
stones, etc.). These objects could be “thrown” by
blowing.
of the weight of the machine, the weight of the
mixture when the tank is full and that of the
chemical product.
WARNING - Close rmly the cap of the
from the plastic tube, attached on the cap. The
pressure allows the liquid to come out even when
the throwing pipe is in vertical position.
HOW TO PUT THE MIST BLOWER ON YOUR
SHOULDERS
Wear the mist blower on your shoulders using the
following procedure:
· Lift the mist blower with the left hand by
the shoulder straps (never lift it by the liquid
tank, the cover of the engine or the frame) by
positioning the right shoulder strap on the
right shoulder.
· Insert the left arm under the left shoulder strap
in order to position it on your shoulder.
· Set the length of the shoulder straps referring
to the procedure “Adjusting of the shoulder
straps”.
TREATMENT
Please read carefully the chapter “Safety
precautions” which will indicate you all the
precautions required for mist blower using.
· The throwing pipe has to be addressed toward
the crops that must be treated, and never
against the wind.
· While spraying, regulate the engine revolutions
depending on your needs; it is not always
necessary working at maximum power.
Using the wide spray jet, the exit is widened to
cover a greater area:
· Use with the spray jet – Widened range.
· Use with only the spreader – Narrower but
longer range.
How to address the throwing pipe to optimize
treatments:
· Elliptical rotation from right to left-hand side
· ‘U’ rotation = plants, espalier cultivations and
walls for disinfection.

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8. MAINTENANCE
MAINTENANCE CHART
Please note that the following maintanance intervals apply for
normal operating conditions only. If your daily work requires
longer than normal or harsh cutting conditions are present
the suggested intervals should be shortened accordingly.
Before Each Use
After Each
Refueling Stop
After Finishing
Daily Work
Weehly
Monthly
If Damaged or
Faulty
As Required
Complete Machine Inspect (Leaks, Cracks, and
Wear) XX
Clean X
Controls (Ignition Switch,
Choke Lever, Throttle
Trigger, Trigger Interlock)
Check Operation XX
Fuel Tank Inspect (Leaks, Cracks, and
Wear) XX
Fuel Filter Inspect and clean X
Replace Filter Element XEvery 6
Months
All Accessible Screws and
Nuts (not Adjusting Screws)
Inspect X
Retighten X
Alr Filter Clean X
Replace XEvery 6
Months
Starter Rope - Harness Inspect (Damage and Wear) X
Replace X
Carburetor Check Idle XX
Spark Plug Check Electrode Gap X
Replace XEvery 6
Months
Vibration Mounts Inspect (Damage and Wear) X
Replace by Dealer X
Gaskets Inspect and replace if
necessary X
Liquid tank Inspect X
Clean X

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CAUTION
when it is dirty will result in impaired operation
of the engine.
ENGINE
air periodically. Dangerous overheating of engine
may occur due to impurities on the cylinder.
SPARK PLUG
Clean spark plug and check electrode distance
periodically (Fig. 16). Use Champion RCJ6Y or of
other brand with the same thermal grade.
FAN CASING
Following prolonged use of the mist blower a
large amount of dust may be deposited on the
fan casing (behind the cushion). This obstructs
damage to the fan and/or overheating of the
engine. For this reason, be sure to clean the fan
casing regularly. Clean the slots in the fan casing:
they play an important role in relation to engine
cooling.
CARBURETOR
The carburettor is factory adjusted to standard
settings that comply with emissions regulations.
WARNING:
- Do not change the carburettor settings
by tightening or loosening the regulator
screws; this operation must be performed
by qualied personnel at an Authorized
Service Centre.
- Incorrect adjustment of the carburettor can
cause serious damage to the engine.
- Furthermore, do not tamper with or remove
the red protective caps on the carburettor
regulator screws.
In the case of problems (engine dies when
idling, irregular engine speed or failure to reach
maximum power) seek the assistance of an
Authorized Service Centre.
WARNING: Weather conditions and
WARNING! – Always wear protective
gloves during maintenance operations. Do not
carry out maintenance with the engine hot.
Never carry out maintenance operations with
the engine running.
- Non-correct maintenance and removal of
safety devices could cause serious injuries.
- Do not use fuel mixture for cleaning
operations.
- Do not attempt to carry out operations
or repairs that are not part of the normal
maintenance. See the authorised dealer.
AIR FILTER
is of critical importance so it must be checked
to Fig.17A and proceed as follows:
·
following the direction of the arrow to open it.
·
·
·
it.
·
the button clamps.
CAUTION – Using the mist blower without
the air lter or with a very dirty air lter can
damage the engine and will invalidate the
FUEL FILTER (Fig. 18B)
fuel tank at least once a year. This operation must
be carried out by an Authorized Service Centre:
· Empty the fuel tank.
·
fuel hose.
·
·

33
GB
Before using the machine after a prolonged period
of disuse check all the seals and the carburettor;
we recommend having this procedure carried out
by an Authorized Service Centre.
CAUTION – Store the machine in a place
where it is protected from direct sunlight
entering through windows to avoid damage of
any of its plastic parts. Do not use leftover
mixture that is more than one month old,
otherwise the engine may be seriously damaged
and the warranty will be invalidated.
11. ENVIRONMENTAL PROTECTION
Environmental protection should be a priority of
considerable importance when using the
machine, for the benet of both social cohesion
and the environment in which we live.
- Try not to cause any disturbance to the
surrounding area.
- Scrupulously comply with local regulations and
provisions for the disposal of waste materials
after mowing.
- Scrupulously comply with local regulations and
provisions for the disposal of oils, petrol,
batteries, lters, deteriorated parts or any
elements which have a strong impact on the
environment. This waste must not be disposed
of as normal waste, it must be separated and
taken to specied waste disposal centres
where the material will be recycled.
Demolition and disposal
When the machine reaches the end of its service
life, do not dispose of it into the environment;
instead take it to a waste disposal centre.
Most materials used in the manufacture of the
machine are recyclable; all metals (steel,
aluminium, brass) can be delivered to a normal
recycling station. For information contact your
local waste recycling service. Waste disposal must
be carried out with respect for the environment,
avoiding soil, air and water pollution.
In all cases, applicable local legislation must
be complied with.
When the machine is scrapped also the CE mark
label must be destroyed together with this
manual.
EXTRA MAINTANANCE ADVISABLE
It is advisable to inspect the machine by a
specialized technician at an authorized service
network at the end of season, if used intensively,
and every two years if with normal use.
ATTENTION: All maintenance operations
not reported in this manual must be carried
out by an authorized Service Center. To ensure
steady and regular pole pruner operation,
remember that parts must only be replaced with
ORIGINAL SPARES.
Any unauthorized changes and/or use of
non-original replacement parts may result in
serious injury or death to the operator or third
parties.
9. TRANSPORTATION
Only transport the mist blower with the engine
switched o.
WARNING - When transporting the machine
fastened using straps or belts. The machine must
be transported in the vertical position with an
empty tank, also ensuring compliance with
applicable transport regulations for such
machines.
Place the throwing pipe in vertical position;
fasten it to one of the shoulder strap by using the
hook (A, Fig.18A) present on the clamp of the tap
on the throwing pipe.
10. STORAGE
If the machine is to be stored for long periods:
· Drain the fuel from the tank.
· Start the engine and run it at low speed until it
runs out of fuel and stops.
· Clean the tank thoroughly.
· Clean the machine thoroughly and remove
any debris and dirt (encrusted dust, grass, etc.).
·
prevent corrosion.
· Store the machine and its accessories in a cool,
dry place where it is not accessible by children,
well clear of unprotected heat sources and
corrosive substances such as garden chemical
products.

34
GB
12. TECHNICAL DATA
Displacement cm377.0
Engine 2 stroke
Power kW 3.6
Fuel tank capacity cm32300 (2.3 ℓ)
Primer carburetor Si
Antivibration system Si
Weight kg 11.8
Max. Horizontal liquid range m 18 (max)
Max. Vertical liquid range m 16 (max)
Air volume of fan m3/min 27
Liquid discharge ℓ/min 0.1 ÷ 3.5
Maximum air speed m/s 105
Main tank capacity cm317.000 (17 ℓ)
Pressure level dB (A) LPA av
ISO 11201 103.0 *
Uncertainty dB (A) 4.0
Measured sound power level dB (A) ISO 3744 115.0
Uncertainty dB (A) 2.5
Guaranteed sound power level dB (A) LWA
ISO 3744 118.0
Vibration level m/s2EN ISO 20643 < 2.5 *
Uncertainty m/s2EN 12096 0,1
* Weighted average values (1/7 minimum rpm, 6/7 at full load)

35
GB
13. DECLARATION OF CONFORMITY
The undersigned, EMAK spa via Fermi, 4 - 42011 Bagnolo in Piano (RE) ITALY
declares under its own responsibility that the machine:
1. Type: Mist blower
2. Trademark: / Type: Oleo-Mac MB 90 – Efco AT 900
543 XXX 0001 - 543 XXX 9999
complies with the requirements
established by directive
2006/42/EC - 2014/30/EU - 97/68/EC - 2012/46/EC -
2009/127/EC
conforms with the provisions of the
following harmonised standards: EN ISO 14982 - EN 55012 - EN ISO 28139
Conformity assessment procedure
followed Annex V - 2000/14/EC
Measured sound power level 115.0 dB(A)
Guaranteed sound power level: 118.0 dB(A)
Made at: Bagnolo in piano (RE) Italy - via Fermi, 4
Date: 01/03/2017
Technical documentation available by: the administrative headquarter. - Technical Department
Fausto Bellamico - President
s.p.a.

36
GB
This machine has been designed and
manufactured using the most modern
techniques. The manufacturer guarantees its
products for 24 months from the date of
purchase, for private and hobby use. The
warranty is limited to 12 months in case of
professional use.
Limited warranty
1) The warranty period starts on the date of
purchase. The manufacturer, acting through
the sales and technical assistance network,
shall replace free of charge any parts proven
defective in material, machining or
manufacturing. The warranty does not
aect the purchaser’s rights as established
under legislation governing the
consequences of defects in the machine.
2) Technical personnel will undertake the
necessary repairs in the minimum time
possible, compatible with organisational
needs.
3) To make any claim under the warranty,
this certicate of warranty, fully
completed, bearing the dealer’s stamp
and accompanied by the invoice or
receipt showing the date of purchase,
must be displayed to the personnel
authorised to approve work.
4) The warranty shall be null and void if:
• the machine has evidently not been
serviced correctly
• the machine has been used for improper
purposes or has been modied in any
way,
• unsuitable lubricants and fuels have been
used
• non-original spare parts and accessories
have been tted
• work has been done on the machine by
unauthorised personnel
5) The warranty does not cover consumables
or parts subject to normal wear.
6) The warranty does not cover work to update
or improve the machine.
7) The warranty does not cover any
preparation or servicing work required
during the warranty period.
8) Damage incurred during transport must be
immediately brought to the attention of the
carrier: failure to do so shall render the
warranty null and void.
9) The warranty does not cover injury or
damage caused directly or indirectly to
persons or things by defects in the machine
or by periods of extended disuse of the
machine resulting from the said defects.
14. WARRANTY CERTIFICATE
MODEL
BOUGHT BY Mr.
SERIAL No
DATE
DEALER
Do not send! Only attach to requests for technical warranties.