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STIHL SR 200
Instruction Manual
Contents
English
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 2
Assembling the Unit 8
Adjusting the Throttle Cable 10
Harness 10
Fuel 10
Fueling 11
Original Instruction ManualPrinted on chlorine-free paper
Information Before You Start 12
Starting / Stopping the Engine 13
Operating Instructions 15
Calculating Required Quantity of
Solution 15
Metering Unit 16
Filling the Container 18
Mistblowing 18
After Finishing Work 19
Storing the Machine 20
Cleaning the Air Filter 20
Adjusting the Carburetor 21
Catalytic Converter 22
Spark Plug 22
Printing inks contain vegetable oils, paper can be recycled.
Engine Running Behavior 23
Maintenance and Care 24
Minimize Wear and Avoid Damage 26
Main Parts 27
Specifications 28
Maintenance and Repairs 29
Disposal 29
EC Declaration of Conformity 30
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
It has been built using modern
production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and trouble-free use of
the product.
Please contact your dealer or our sales
company if you have any queries
concerning this product.
Your
Dr. Nikolas Stihl
{
© ANDREAS STIHL AG & Co. KG, 2018
0458-457-0121-A. VA3.K18.
0000006423_008_GB
SR 200
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
1
English
Guide to Using this Manual
Pictograms
The meanings of the pictograms
attached to the machine are explained in
this manual.
Depending on the model concerned, the
following pictograms may be attached to
your machine.
Fuel tank; fuel mixture of
gasoline and engine oil
Operate manual fuel
pump
Solution feed
Symbols in text
WARNING
Warning where there is a risk of an
accident or personal injury or serious
damage to property.
NOTICE
Caution where there is a risk of
damaging the machine or its individual
components.
Engineering improvements
STIHL's philosophy is to continually
improve all of its products. For this
reason we may modify the design,
engineering and appearance of our
products periodically.
Therefore, some changes, modifications
and improvements may not be covered
in this manual.
Safety Precautions and
Working Techniques
Special safety precau
tions must be observed
when working with this
sprayer.
It is important that you
read the instruction man
ual before first use and
keep it in a safe place for
future reference. Nonobservance of the
instruction manual may
result in serious or even
fatal injury.
Observe all applicable local safety
regulations, standards and ordinances.
If you have not used this model before:
Have your dealer or other experienced
user show you how to operate your
machine or attend a special course in its
operation.
Minors should never be allowed to use
this product.
Keep bystanders, especially children,
and animals away from the work area.
When the power tool is not in use, put it
in a place where it does not endanger
others. Secure it against unauthorized
use.
The user is responsible for avoiding
injury to third parties or damage to their
property.
Do not lend or rent your unit without the
instruction manual. Be sure that anyone
using it understands the information
contained in this manual.
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-
2
SR 200
English
The use of noise emitting power tools
may be restricted to certain times by
national or local regulations.
Do not operate your unit if any of its
components are damaged. Pay special
attention to the tightness of the container
(no leaks).
Operate the sprayer only if it is complete
and properly assembled.
Do not use a pressure washer to clean
the unit. The solid jet of water may
damage parts of the unit.
Physical Condition
To operate this power tool you must be
rested, in good physical condition and
mental health. If you have any condition
that might be aggravated by strenuous
work, check with your doctor before
operating a power tool.
Persons with pacemakers only: The
ignition system of your power tool
produces an electromagnetic field of a
very low intensity. This field may
interfere with some pacemakers. To
reduce health risks, STIHL recommends
that persons with pacemakers consult
their physician and the pacemaker
manufacturer before operating this
power tool.
Do not operate the unit if you are under
the influence of any substance (drugs,
alcohol) which might impair vision,
dexterity or judgment.
Applications
This mistblower is suitable for applying
fungicides, herbicides and pesticides at
ground level. Spraying overhead is
possible with mistblowers equipped with
a pressure pump. Typical areas of
application are in fruit, vegetable, wine
and crop growing, plantations, flower
growing, grassland and forestry.
Only use plant protection products that
are specifically approved for use in
portable sprayers/mistblowers.
Do not use your po we r tool for any other
purpose because of the increased risk of
accidents and damage to the power tool
itself. Never attempt to modify the
product in any way since this may result
in accidents or damage to the product.
Accessories and Spare Parts
Only use parts and accessories that are
explicitly approved for this power tool by
STIHL or are technically identical. If you
have any questions in this respect,
consult a servicing dealer. Use only high
quality parts and accessories in order to
avoid the risk of accidents and damage
to the unit.
STIHL recommends the use of genuine
STIHL replacement parts. They are
specifically designed to match the
product and meet your performance
requirements.
Never attempt to modify your power tool
in any way since this may increase the
risk of personal injury. STIHL excludes
all liability for personal injury and
damage to property caused while using
unauthorized attachments.
Clothing and Equipment
Wear proper protective clothing and
equipment when using, filling and
cleaning the sprayer. Follow the
chemical manufacturer's instructions
with respect to protective equipment.
Immediately change work clothes
contaminated with plant control
chemicals.
Clothing must be snug-fit
ting but allow complete
freedom of movement.
For some chemicals it is
necessary to wear imper
meable coveralls.
If you are spraying overhead, wear
impermeable head covering.
Avoid any clothing,
scarves, neckties, jew
elery or anything that
could get into the air
intake. Tie up and confine
long hair (e.g. with a hair
net, cap, hard hat, etc.).
Wear impermeable safety
boots with a non-slip sole
which are resistant to
plant control chemicals.
Do not wear sandals or go barefoot.
-
-
-
SR 200
3
English
WARNING
To reduce the risk of eye
injuries, wear snug-fitting
safety glasses in accord
ance with European
Standard EN 166. Make
sure the safety glasses
are a good fit.
Wear a suitable respirator.
Wear hearing protection, e.g. earplugs
or ear muffs.
Inhaling plant control chemicals may
endanger your health. Always wear a
suitable respirator to protect yourself
against health risks and allergic
reactions. Observe warnings in the
directions for use of the plant protection
product and all applicable local safety
regulations, standards and ordinances.
Wear impermeable
gloves resistant to plant
control chemicals.
Handling of Chemicals
Read the instructions supplied with the
plant control chemical prior to use.
Follow the instructions with respect to
mixing, using, personal protection
equipment, storage and disposal.
Observe legal requirements for handling
plant control chemicals.
Plant control chemicals may contain
substances that are harmful to humans,
animals, plants and the environment –
risk or poisoning and risk of serious or
fatal injuries!
Plant control chemicals may be used
only by persons trained in their handling
and the appropriate first-aid measures.
Keep instructions or label of the plant
-
control chemical available at all times in
order to inform the doctor about the
chemical concerned in an emergency. In
an emergency, follow the chemical
manufacturer's instructions provided or
on the label.
Mixing the spray solution
Mix the plant protection product strictly
in accordance with the manufacturer's
instructions – incorrect mixtures may
produce toxic fumes or explosive
solutions.
– Never spray liquid plant control
chemicals undiluted.
– Mix the solution outdoors only or in
well-ventilated locations.
– Only prepare sufficient solution for
the job in hand so that nothing is left
over.
– Mix different chemicals only in
accordance with the manufacturer's
instructions – incorrect mixtures
may produce toxic fumes or
explosive solutions.
– Do not mix different plant protection
products unless such a mixture is
approved by the manufacturer.
Filling the Solution Container
– Fill the container with plant
protection products outdoors only or
in well-ventilated locations.
– Stand the sprayer on a level surface
– do not fill the solution container
above the maximum mark.
– To reduce the risk of injury, do not
fill the unit while wearing it on your
back.
– Only fill up with sufficient solution for
the job in hand so that nothing is left
over.
– Close the valve lever before filling.
– When filling from central water
supply, do not immerse the end of
the hose in the solution – sudden
low pressure in the system may
cause the solution to be sucked
back into the water supply.
– Before filling the container with
spray solution, carry out test run
with fresh water and check all parts
of the sprayer for leaks.
– After filling, fit the filler cap and
tighten it down firmly.
Application
– Wo rk o nly in t he open or in very well
ventilated locations, e.g. open
greenhouses.
– Do not eat, drink or smoke while
working with plant control
chemicals.
– Never blow through nozzles or other
components by mouth.
– Avoid contact with plant control
chemicals – immediately change
clothing contaminated with plant
control chemical.
– Do not spray in windy conditions.
Unfavorable weather conditions may
result in an incorrect concentration of the
plant protection product. Overdosing
4
SR 200
English
may damage plants and the
environment. Under-dosing may result
in unsuccessful plant treatment.
In order to reduce the risk of damage to
the environment and plants, do not
operate the sprayer:
– in windy conditions
– at temperatures above 25°C in the
shade
– in direct sunlight
In order to reduce the risk of accidents
and damage to the sprayer, never
operate the sprayer with:
– flammable liquids
– viscous or sticky liquids
– caustic or corrosive chemicals
– liquids hotter than 50°C
Storage
– During work breaks, do not leave
the sprayer in the hot sun or near
any heat source.
– Do not store spray solution in the
sprayer for longer than one day.
– Store and transport plant protection
products only in approved
containers.
– Never store the plant protection
products in containers intended for
foods, drinks or animal feed.
– Do not store plant protection
products with foods, drinks or
animal feed.
– Keep plant protection products out
of the reach of children and animals.
– Store the power tool empty and
clean.
– Store plant protection products and
power tool in a place secured
against unauthorized use.
– Store plant protection products and
power tool in a dry place protected
from frost.
Disposal
Never dispose of residual plant
protection products or contaminated
rinsing solutions in waterways, drains,
sewers, street gutters or manholes.
– Dispose of residual plant protection
products and used containers in
accordance with local waste
disposal regulations.
Transporting the Unit
Always stop the engine.
Transporting in a vehicle:
– Properly secure your power tool to
prevent turnover, fuel spillage and
damage.
– The container must be empty and
clean.
Fueling
Gasoline is an extremely
flammable fuel. Keep
clear of naked flames. Do
not spill any fuel – do not
smoke.
Always shut off the engine before
refueling.
Do not fuel a hot engine – fuel may spill
and cause a fire.
Always remove the power tool from your
back and put it on the ground before
refueling. Fuel the unit only when it is
standing on the ground.
Open the fuel cap carefully to allow any
pressure build-up in the tank to release
slowly and avoid fuel spillage.
Fuel your power tool only in wellventilated areas. If you spill fuel, wipe
the machine immediately – if fuel gets on
your clothing, change immediately.
Check for leakage. To
reduce the risk of serious
of fatal burn injuries, do
not start or run the engine
until leak is fixed.
Screw-type tank cap
Never use a tool to open or close the
screw-type fuel cap. This may damage
the cap and cause fuel leakage.
After fueling, tighten
down the screw-type fuel
cap as securely as
possible.
Before Starting
Check that your power tool is properly
assembled and in good condition,
especially if it has been subjected to
unusually high loads for which it was not
designed (e.g. heavy impact or a fall).
– Check the fuel system for leaks,
paying special attention to visible
parts such as the tank cap, hose
connections and the manual fuel
pump (on machines so equipped). If
SR 200
5
English
271BA003 KN
0002BA084 KN
there are any leaks or damage, do
not start the engine – risk of fire.
Have your machine repaired by a
servicing dealer before using it
again.
– The setting lever must move easily
to STOP or 0
– Throttle trigger must move freely
and spring back to the idle position
when released.
– The blower tubes must be properly
assembled.
– Keep the handles dry and clean –
free from oil and dirt – for safe
control of the power tool.
– Check that the spark plug boot is
secure – a loose boot may cause
arcing that could ignite combustible
fumes and cause a fire.
– Check the fuel system for leaks.
– Check condition and tightness of
container, hose and metering unit.
– Check condition of harness straps
and replace damaged or worn
straps.
– Check condition of blower housing.
A worn blower housing (cracks, nicks,
chips) may result in an increased risk of
injury from thrown foreign objects. If the
blower housing is damaged, consult
your dealer – STIHL recommends you
contact a STIHL servicing dealer.
To reduce the risk of accidents, do not
operate the unit if it is not properly
assembled and in good condition.
For emergencies: Practice quickly
opening the fastener on the waist belt,
loosening the shoulder straps and
setting down the unit. To avoid damage,
do not throw the power tool to the
ground when practicing.
Starting the Engine
Start the engine at least 3 meters from
the fueling spot, outdoors only.
Your power tool is designed to be
operated by one person only. Do not
allow other persons in the work area –
even when starting.
Start the engine as described in the
instruction manual.
Place the power tool on level ground,
make sure you have secure footing, hold
the power tool securely.
If an assistant is required to put the
power tool on your back, make sure that
– the engine is running at idle speed
– the assistant is not standing in the
area of the exhaust outlet and
breathing exhaust fumes
– the valve lever is closed
– the assistant is not standing in the
area of the outlet nozzle
– the assistant must leave the work
area immediately after you have put
the power tool on your back.
Holding and Controlling the Power Tool
Carry the power tool on your back with
both harness straps – do not hang it over
one shoulder. Hold and control the
blower tube with your right hand on the
control handle – even if you are lefthanded.
Walk slowly forwards as you work –
observe the nozzle outlet at all times –
do not walk backwards – risk of
stumbling.
Keep the power tool and container
upright. To avoid the risk of chemical
leaking from the container and causing
injury,do not bend forwards.
During Operation
6
SR 200
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Do not direct the blower tube at
bystanders since the air flow can blow
small objects at great speed.
In the event of impending danger or in
an emergency, switch off the engine
immediately by moving the setting lever
to STOP or 0.
Never leave a running power tool
unattended.
Take special care in slippery conditions
– damp, snow, ice, on slopes or uneven
ground.
Watch out for obstacles: Be careful of
refuse, tree stumps, roots and ditches
which could cause you to trip or stumble.
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
To reduce the risk of accidents, take a
break in good time to avoid tiredness or
exhaustion.
Work calmly and carefully – in daylight
conditions and only when visibility is
good. Stay alert so as not to endanger
others.
Never work on a ladder or any other
insecure support.
When working in open ground and
gardens take special care to avoid
harming small animals.
To reduce the risk of electrocution,
never work in the vicinity of live wires or
power cables.
Always clean the spray container and
hose system before changing to a
different plant protection product.
Your power tool produces
toxic exhaust fumes as
soon as the engine is
running. These fumes
may be colorless and
odorless and contain
unburned hydrocarbons
and benzol. Never oper
ate the power tool in
enclosed or poorly venti
lated locations.
To reduce the risk of serious or fatal
injury from breathing toxic fumes,
ensure proper ventilation when working
in trenches, hollows or other confined
locations.
To reduce the risk of accidents, stop
work immediately in the event of
nausea, headache, visual disturbances
(e.g. reduced field of vision), problems
with hearing, dizziness, deterioration in
ability to concentrate. Apart from other
possibilities, these symptoms may be
caused by an excessively high
concentration of exhaust gases in the
work area.
Operate your power tool so that it
produces a minimum of noise and
emissions – do not run the engine
unnecessarily, accelerate the engine
only when working.
To reduce the risk of fire, do not smoke
while operating or standing near your
power tool. Note that combustible fuel
vapor may escape from the fuel system.
If your power tool is subjected to
unusually high loads for which it was not
designed (e.g. heavy impact or a fall),
always check that it is in good condition
before continuing work – see also
"Before Starting". Check the fuel system
in particular for leaks and make sure the
-
safety devices are working properly. Do
not continue operating your power tool if
it is damaged. In case of doubt, consult
your servicing dealer.
After Finishing Work
Close the valve lever.
-
Always shut off the engine before taking
the power tool off your back.
After finishing work, put the power tool
down on a level, non-flammable surface.
To reduce the risk of fire, do not put it
down near easily combustible materials
(e.g. wood chips, bark, dry grass, fuel).
Check all parts of the unit for leaks.
After finishing work, thoroughly clean the
unit and wash your hands, face and, if
necessary, your clothes.
Keep other persons and animals away
from the areas that have been sprayed
and do not walk on them until the plant
protection chemical has dried.
Vibrations
Prolonged use of the power tool may
result in vibration-induced circulation
problems in the hands (whitefinger
disease).
No general recommendation can be
given for the length of usage because it
depends on several factors.
The period of usage is prolonged by:
– Hand protection (wearing warm
gloves)
– Work breaks
SR 200
7
English
1
2
9928BA001 AM
3
2
2431BA017 KN
The period of usage is shortened by:
– Any personal tendency to suffer
from poor circulation (symptoms:
frequently cold fingers, tingling
sensations).
– Low outside temperatures.
– The force with which the handles
are held (a tight grip restricts
circulation).
Continual and regular users should
monitor closely the condition of their
hands and fingers. If any of the above
symptoms appear (e.g. tingling
sensation in fingers), seek medical
advice.
Maintenance and Repairs
Service the machine regularly. Do not
attempt any maintenance or repair work
not described in the instruction manual.
Have all other work performed by a
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
Only use high-quality replacement parts
in order to avoid the risk of accidents
and damage to the machine. If you have
any questions in this respect, consult a
servicing dealer.
STIHL recommends the use of genuine
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
To reduce the risk of injury, always shut
off the engine before carrying out any
maintenance or repairs or cleaning the
machine. – Exception: Carburetor and
idle speed adjustments.
Do not turn the engine over on the
starter with the spark plug boot or spark
plug removed since there is otherwise a
risk of fire from uncontained sparking.
Do not service or store your machine
near open flames.
Check the fuel filler cap for leaks at
regular intervals.
Use only a spark plug of the type
approved by STIHL and make sure it is
in good condition – see "Specifications".
Inspect the ignition lead (insulation in
good condition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire and damage to
hearing, do not operate your machine if
the muffler is damaged or missing.
Do not touch a hot muffler since burn
injury will result.
Vibration behavior is influenced by the
condition of the AV elements – check the
AV elements at regular intervals.
Shut off the engine before rectifying
problems.
Assembling the Unit
NOTICE
The solution hose and throttle cable are
already connected and must not be
kinked while assembling the machine.
The combination wrench and
screwdriver are in the supplied
accessory bag.
Fitting the pleated hose on the elbow
N Open the hose clamp (1) and fit it on
the pleated hose (2).
N Engage the tab in the recess.
N Push the pleated hose (2) over the
slip ring (3) as far as stop.
8
SR 200
English
3
1
2431BA002 KN
3
2431BA003 KN
1
2
5
4
2431BA004 KN
4
3
2
2431BA005 KN
1
2
2431BA006 KN
a
1
1
2431BA018 KN
3
N Line up the hose clamp (1) and slip
ring (3):
– the two lugs (arrow) on the slip ring
face up.
– The hose clamp's hook faces
outwards.
N Tighten down the screw (arrow).
Mounting the Control Handle
N Attach throttle cable to retainer (4).
N Secure hose with retainer (5) to
third pleat (arrow) in pleated hose.
Mounting the Blower Tube and Nozzle
9928BA019 AM
N Push the blower tube (1) into the
stub of pleated hose (2) as far as
the stop.
N Push the nozzle (3) onto blower
tube as far as stop – metering
knob (4) must be in line with the
control handle.
Adjusting and Securing the Control
Handle
N Slide the control handle (1) along
the tube to the most comfortable
position – distance between nozzle
outlet (2) and the control handle (1)
must be at least 500 mm (20 in) (a).
N Secure the hose clamp (1) with the
screw (3).
N Open up the control handle (1) with
SR 200
liner (2) and push it over the stub (3)
of the pleated hose.
N Put the machine on your back and
adjust the harness – see "Harness".
9
English
0002BA013 KN
373BA003 KN
373BA004 KN
Adjusting the Throttle Cable
It may be necessary to correct the
adjustment of the throttle cable after
assembling the machine or after a
prolonged period of operation.
Adjust the throttle cable only when the
unit is completely and properly
assembled.
N Set throttle trigger to the full throttle
position – as far as stop.
N Carefully rotate the screw in the
throttle trigger in the direction of the
arrow until you feel initial resistance.
Then rotate it another full turn.
Harness
Adjusting the Harness
N Pull the ends of the straps
downwards to tighten the harness.
N Adjust the harness so that the
backplate fits snugly and securely
against your back.
Loosening the Harness
Fuel
Your engine requires a mixture of
gasoline and engine oil.
WARNING
For health reasons, avoid direct skin
contact with gasoline and avoid inhaling
gasoline vapor.
STIHL MotoMix
STIHL recommends the use of STIHL
MotoMix. This ready-to-use fuel mix
contains no benzol or lead, has a high
octane rating and ensures that you
always use the right mix ratio.
STIHL MotoMix uses STIHL HP Ultra
two-stroke engine oil for an extra long
engine life.
MotoMix is not available in all markets.
Mixing Fuel
10
N Lift the tabs of the sliding adjusters.
NOTICE
Unsuitable fuels or lubricants or mix
ratios other than those specified may
result in serious damage to the engine.
Poor quality gasoline or engine oil may
damage the engine, sealing rings, hoses
and the fuel tank.
Gasoline
Use only high-quality brand-name
gasoline with a minimum octane rating
of 90 – leaded or unleaded.
SR 200
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002BA447 KN
Gasoline with an ethanol content of
more than 10% can cause running
problems in engines with a manually
adjustable carburetor and should not be
used in such engines.
Engines equipped with M-Tronic deliver
full power when run on gasoline with an
ethanol content of up to 25% (E25).
Engine Oil
If you mix the fuel yourself, use only
STIHL two-stroke engine oil or another
high-performance engine oil in
accordance with JASO FB, JASO FC,
JASO FD, ISO-L-EGB, ISO-L-EGC or
ISO-L-EGD.
STIHL specifies STIHL HP Ultra twostroke engine oil or an equivalent highperformance engine oil in order to
maintain emission limits over the
machine’s service life.
Mix Ratio
STIHL 50:1 two-stroke engine oil: 50
parts gasoline to 1 part oil
Examples
Gasoline STIHL engine oil 50:1
Liters Liters (ml)
10.02(20)
5 0.10 (100)
10 0.20 (200)
15 0.30 (300)
20 0.40 (400)
25 0.50 (500)
N Use a canister approved for storing
fuel. Pour oil into canister first, then
add gasoline and mix thoroughly.
Storing Fuel
Store fuel only in approved safety-type
fuel canisters in a dry, cool and safe
location protected from light and the sun.
Fuel mix ages – only mix sufficient fuel
for a few weeks work. Do not store fuel
mix for longer than 30 days. Exposure to
light, the sun, low or high temperatures
can quickly make the fuel mix unusable.
STIHL MotoMix may be stored for up to
2 years without any problems.
N Thoroughly shake the mixture in the
canister before fueling your
machine.
WARNING
Pressure may build up in the canister –
open it carefully.
N Clean the fuel tank and canister
from time to time.
Dispose of remaining fuel and cleaning
fluid properly in accordance with local
regulations and environmental
requirements.
Fueling
Preparations
9928BA018 AM
N Before fueling, clean the filler cap
and the area around it to ensure that
no dirt falls into the tank.
Opening screw-type tank cap
N Turn the cap counterclockwise until
it can be removed from the tank
opening.
N Remove the cap.
SR 200
11
English
002BA448 KN
1
0002BA017 KN
2
3
2431BA019 KN
a
b
1
2431BA008 KN
2
1
Filling up with fuel
Take care not to spill fuel while fueling
and do not overfill the tank. STIHL
recommends you use the STIHL filler
nozzle (special accessory).
Closing screw-type tank cap
N Place the cap in the opening.
N Turn the cap clockwise as far as
stop and tighten it down as firmly as
possible by hand.
Information Before You Start
NOTICE
With the engine stopped and before
starting, check the air intakes between
the backplate and powerhead for
blockages and clean if necessary.
Control handle
1 Setting lever
2 Throttle trigger
3 Throttle trigger lockout
1)
Throttle trigger limiter position
Travel of throttle trigger can be limited in
two stages:
a 1/3 throttle
b 2/3 throttle
To disengage the travel limiter,
N Return the setting lever (1) to the
run position F.
Throttle lock
1)
1)
Functions of setting lever
Run position F
Engine runs or is ready to start. Throttle
trigger (2) can be moved to any position.
Stop position 0
Ignition is interrupted, engine stops. The
setting lever (1) is not locked in this
position. It springs back to the run
position. The ignition is again ready for
operation.
12
The throttle trigger (2) can be locked in
any required position.
To disengage the lock:
N Return the setting lever (1) to the
run position F.
1)
Not in all versions, country-specific
SR 200
English
0002BA060 KN
1
0002BA019 KN
9928BA008 AM
2431BA009 KN
Starting / Stopping the
Engine
Before Starting
N Close valve lever (1) for solution
feed.
Start the engine.
N Observe safety precautions.
NOTICE
Start your unit on a clean, dust-free
surface only to ensure that no dust is
sucked in.
N The setting lever must be on F
N Press the manual fuel pump bulb at
least five times – even if the bulb is
filled with fuel.
Cold Engine (cold start)
N Turn the choke knob to g.
Warm Engine (warm start)
N Turn the choke knob to <.
Also use this setting if the engine has
been running but is still cold.
Cranking
9928BA006 AM9928BA007 AM
N Place the unit securely on the
ground and make sure that
bystanders are well clear of the
nozzle outlet.
N Make sure you have a firm footing:
Hold the unit with your left hand on
the container and put one foot
against the base plate to prevent it
from slipping.
N Pull the starter grip slowly with your
right hand until you feel it engage
and then give it a brisk strong pull.
Do not pull out the starter rope to full
length – it might otherwise break.
N Do not let the starter grip snap back.
Guide it slowly back into the housing
so that the starter rope can rewind
properly.
N Continue cranking until the engine
runs.
SR 200
13
English
2431BA010 KN
0002BA025 KN
Other Hints on Starting
If the engine stops while the choke knob
in on g or during acceleration
N Move the choke knob to < and
continue cranking until the engine
runs.
If engine does not start
N Make sure all settings are correct
(choke knob, setting lever in run
position F).
N Repeat the starting procedure.
If fuel tank has been run completely dry
and then refueled
N Press the manual fuel pump bulb at
least five times – even if the bulb is
filled with fuel.
As soon as the engine runs
N Operate the throttle trigger.
N Choke knob automatically returns to
the run position F when the throttle
trigger is operated.
9928BA006 AM
At very low outside temperatures
N Open throttle slightly – warm up the
engine for a short period.
Stopping the Engine
N Move the setting lever in the
direction of 0 – the engine stops –
the setting lever springs back to the
on position.
14
SR 200
English
Operating Instructions Calculating Required
Quantity of Solution
During Operation
After a long period of full throttle
operation, allow the engine to run for a
short while at idle speed so that engine
heat can be dissipated by the flow of
cooling air. This helps protect enginemounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period: Wait for the
engine to cool down. Keep the machine
in a dry place, w ell away fro m so urce s of
ignition, until you need it again. For
longer out-of-service periods – see
"Storing the Machine".
Determining surface area (m2)
In the case of ground crops, simply
multiply the length of the field by its
width.
The surface area of high-growing plants
is calculated approximately by
measuring the length of the rows and the
average height of the foliage. The result
is multiplied by the number of rows and
then by two if both sides have to be
treated.
The surface area in hectares is obtained
by dividing the number of square meters
by 10,000.
Example:
A field 120 meters long and 30 meters
wide has to be treated with a pesticide.
Area:
120 m x 30 m = 3,600 m
2
3,600 / 10,000 = 0.36 ha
Determining quantity of active ingredient
Refer to the instructions supplied with
the active ingredient to determine:
– Required quantity of active
ingredient for 1 hectare (ha).
– Concentration of active ingredient
(mix ratio).
Multiply the required quantity of active
ingredient for 1 hectare by the area
determined in hectares. The result is the
quantity of active ingredient required for
the area to be treated.
Example:
According to the maker’s instructions,
0.4 liters of active ingredient are
required per hectare to obtain a
concentration of 0.1%.
Quantity of active ingredient:
0.4 (l/ha) x 0.36 (ha) = 0.144 l
Determining quantity of solution
The quantity of solution required is
calculated as follows:
T
W
x 100 = T
K
T
= Quantity of active ingredient in l
W
B
K = Concentration in %
T
= Required quantity of solution in l
B
Example:
The calculated quantity of active
ingredient is 0.144 liters. According to
the maker’s instructions, the
concentration is 0.1%.
Quantity of solution:
0.144 l
0.1 %
x 100 = 144 l
Determining walking speed
SR 200
Carry out a trial run with the machine
fueled and the container filled with
water. Operate the spray tube (swing it
15
English
1
0002BA061 KN
A
B
1
back and forth) as for the real run
described below. Determine the
distance walked in one minute.
Also use the trial run to check the
selected working width. The best
working width for low-growing crops is
4–5 m. Mark the working width with
stakes.
Dividing the distance walked in meters
by the time in minutes gives you the
walking speed in meters per minute
(m/min).
Example:
The distance covered in one minute is
10 meters.
Walking speed:
10 m
1min
= 10 m/min
Determining discharge rate
The setting of the metering unit is
calculated as follows:
V
(l) x vb(m/min) x b(m)
a
V
= Quantity of solution
a
v
= Walking speed
b
V
= Discharge rate
c
A (m
2
)
= Vc(l/min)
b = Working width
A = Area
Example:
The values determined above and a
working width of 4 meters require the
following setting on the metering unit:
144 l x 10 (m/min) x 4m
3,600 m
Hectares (ha) have to be converted into
2
m
(ha x 10,000 = m2).
2
= 1.6 l/min
To adjust the required discharge rate
see "Metering Unit".
Metering Unit
Valve Lever
Solution feed is started and stopped with
the valve lever (1).
N Position A (valve lever vertical, up) –
open
N Position B (valve lever horizontal,
down) – closed
16
SR 200
English
2
1
2431BA022 KN
0811BA019 KN
Metering Knob
N Rotate the metering knob (1) for
infinitely variable discharge rate
Position 1 = minimum flow rate
Position 6 = maximum flow rate
The numbers on the metering knob must
be lined up with the lug (2) under the
knob.
Discharge Rate
The discharge rate (l/min) depends on
the metering knob setting and the spray
tube angle.
Discharge rate (l/min) without pressure
pump
Spray tube angle
Knob setting - 30° 0° + 30°
1 0.24 0.17 0.11
2 0.820.660.46
3 1.421.130.84
4 2.2 1.66 1.1
5 2.692.131.46
6 2.912.251.52
Discharge rate (l/min) without pressure
pump, with ULV nozzle
Spray tube angle
Knob setting - 30° 0° + 30°
0.5 0.050.040.03
0.65 0.08 0.07 0.05
0.8 0.120.090.08
Discharge rate (l/min) with pressure
pump (special accessory)
Spray tube angle
Knob setting - 30° 0° + 30°
1.0 0.64
1.6 1.7
2.0 2.59
Discharge rate (l/min) with pressure
pump (special accessory) and ULV
nozzle
Spray tube angle
Knob setting - 30° 0° + 30°
0.5 0.15
0.65 0.2
0.8 0.37
Checking Flow Rate
N Place the unit on the ground.
N Fill the container with water up to
10 liter mark.
Machines without pressure pump
N Set the "standard" metering knob to
6.
N Start the machine.
N Hold the spray tube horizontally, run
the engine at full throttle, spray the
contents of the container down to
the 5 liter mark and note the time
taken.
The time required to spray 5 liters fluid
should be between 110 and
150 seconds.
Machines with pressure pump (special
accessory)
N Fit metering knob 2.0 in the nozzle.
N Start the machine.
N Hold the spray tube horizontally, run
the engine at full throttle, spray the
contents of the container down to
the 5 liter mark and note the time
taken.
The time required to spray 5 liters fluid
should be between 100 and
130 seconds.
In case of deviations:
N Check the container, hose system,
metering knob and optional
pressure pump for contamination
and clean if necessary.
N Check blower air intake and clean if
necessary.
N Check engine setting and correct if
necessary.
If there is no improvement, contact your
dealer for assistance.
SR 200
17
English
2431BA021 KN
1
0002BA060 KN
1
2431BA011 KN
10L
5L
2431BA012 KN
2431BA013 KN
2431BA023 KN
Filling the Container
N Turn the cap counterclockwise until
it can be removed from the
container opening.
N The gasket (1) in the cap must be in
good condition and clean.
N Stand the machine on a level
surface.
N Pour thoroughly mixed spray
solution into the container through
the strainer.
Do not exceed maximum fluid level of
10 liters (2.6 US.gals).
Mistblowing
N Adjust discharge rate with the
metering knob – see "Metering
Unit".
N Open the valve lever – see
"Metering Unit".
N Always use full throttle when
mistblowing.
Deflector Screen
Different baffle screens can be fitted to
alter the shape and direction of the spray
for accurate application of the solution.
without deflector screen
N Close valve lever (1) for solution
feed.
18
N Fit the cap and turn it clockwise with
both hands – tighten it as firmly as
possible.
Spray jet for long distances – maximum
spraying range.
– for spraying large areas and high
crops
– for maximum penetration of foliage
SR 200
English
2431BA024 KN
372BA007 KN
372BA008 KN
1
2431BA014 KN
Fan jet baffle screen
Spray is broadened and softened.
– for treating plants at close range
(< 1.5 m)
– reduces damage to plant, especially
in sensitive phases of plant growth
45° deflector screen
Dual Deflector Screen
Splits the spray jet in two directions.
– Allows two closely planted rows to
be treated simultaneously.
After Finishing Work
N Close the valve lever.
N Shut off the engine – see "Starting /
Stopping the Engine".
Draining the Solution Container
N Turn metering knob (1) to 6.
N Open the valve lever and drain
remaining solution into a suitable
container.
Cleaning the Solution Container
Diverts spray jet at an angle of 45°
– for under-leaf treatment
– to increase discharge rate when
spraying upwards
– for targeted treatment of low-
growing crops. Helps reduce
problem of spray mist being carried
away by the wind when spraying
downwards.
SR 200
N Rinse and clean the solution
container and hose system with
clear water.
N Dispose of remaining spray solution
and rinsing liquid in accordance with
local environmental requirements –
follow maker's instructions.
N Allow the unit to dry with the cap
removed.
19
English
2431BA015 KN
0002BA045 KN
2
2431BA020 KN
1
If strainer is dirty:
N Insert a suitable tool (e.g.
screwdriver) in the two recesses
(arrows) to loosen the strainer (2).
N Pull the strainer (2) upward and out
of the solution container.
N Clean the strainer (2) with clear
water and a brush.
Storing the Machine Cleaning the Air Filter
N Store the machine in a dry, high or
locked location sheltered from frost
– out of the reach of children and
other unauthorized persons.
For periods of 3 months or longer
N Drain and clean the fuel tank in a
well ventilated area.
N Dispose of fuel properly in
accordance with local
environmental requirements.
N Run the engine until the carburetor
is dry – this helps prevent the
carburetor diaphragms sticking
together.
N Thoroughly clean the machine – pay
special attention to the cylinder fins
and air filter.
N Do not expose the container to
direct sunlight for unnecessarily
long periods. UV rays can make the
container material brittle, which
could result in leaks or breakage.
If there is a noticeable loss of engine
power
N Turn the filter cover lock (1)
counterclockwise to the vertical
position.
4
3
N Remove the filter cover (2).
N Clean away loose dirt from around
the filter.
N Pull off the adapter (3) and remove
the filter (4).
N Fit a new filter element. As a
temporary measure you can knock it
out on the palm of your hand or blow
it out with compressed air. Do not
wash.
Replace any damaged parts.
2
9928BA011 AM
20
SR 200
English
9928BA012 AM
9928BA013 AM
Install the filter element.
N Fit the filter in the filter housing and
push the retainer into position.
N Refit the filter cover and turn the
filter cover lock to the horizontal
position
Adjusting the Carburetor
The carburetor comes from the factory
with a standard setting.
This setting provides an optimum fuel-air
mixture under most operating
conditions.
With this carburetor it is only possible to
adjust the high speed screw (H) and low
speed screw (L) within fine limits.
Preparations
N Shut off the engine.
N Check the air filter and clean or
replace if necessary.
N Check that the throttle cable is
properly adjusted – readjust if
necessary – see chapter on
"Adjusting the Throttle Cable".
Standard Setting
Adjusting Idle Speed
N Carry out standard setting.
N Start and warm up the engine.
Engine stops while idling
N Turn the idle speed screw (LA)
clockwise until the engine runs
smoothly.
Erratic idling behavior, engine stops
even though setting of LA screw has
been corrected, poor acceleration
Idle setting is too lean
N Turn the low speed screw (L)
carefully counterclockwise, no
further than stop, until the engine
runs smoothly and accelerates
normally.
SR 200
N Turn high speed screw (H)
counterclockwise as far as stop (no
more than 3/4 turn).
N Turn the low speed screw (L)
clockwise as far as stop, then turn it
back 3/4 turn.
Erratic idling behavior, engine speed
drops when swinging the machine
Idle setting is too rich.
N Turn the low speed screw (L)
clockwise until the engine runs and
accelerates smoothly.
It is usually necessary to change the
setting of the idle speed screw (LA) after
every correction to the low speed
screw (L).
21
English
1
9928BA014 AM
Fine Tuning for Operation at High
Altitude
A slight correction of the setting may be
necessary if the engine does not run
satisfactorily:
N Carry out standard setting.
N Warm up the engine.
N Turn high speed screw (H) slightly
clockwise (leaner) – no further than
stop.
NOTICE
After returning from high altitude, reset
the carburetor to the standard setting.
If the setting is too lean there is a risk of
engine damage due to insufficient
lubrication and overheating.
Catalytic Converter Spark Plug
Power tools with a catalytic converter
(depending on model) must be run on a
50 : 1 mixture of unleaded gasoline and
STIHL two-stroke engine oil or
equivalent two-stroke engine oil – see
chapter on "Fuel".
The catayltic converter integrated in the
muffler reduces the harmful emissions in
the exhaust gas.
The correct carburetor setting (if
adjustable) and strict observance of the
prescribed mix ratio of gasoline and twostroke engine oil are essential to
minimize harmful emissions and ensure
a long catalytic converter service life.
N If the engine is down on power,
difficult to start or runs poorly at idle
speed, first check the spark plug.
N Fit a new spark plug after about 100
operating hours – or sooner if the
electrodes are badly eroded. Install
only suppressed spark plugs of the
type approved by STIHL – see
"Specifications".
Removing the Spark Plug
N Pull off the spark plug boot (1).
N Unscrew the spark plug.
22
SR 200
English
000BA039 KN
A
1
000BA045 KN
Checking the Spark Plug
N Clean dirty spark plug.
N Check electrode gap (A) and
readjust if necessary – see
"Specifications".
N Rectify the problems which have
caused fouling of the spark plug.
Possible causes are:
– Too much oil in fuel mix.
– Dirty air filter.
– Unfavorable running conditions.
N Use resistor type spark plugs with a
properly tightened adapter nut.
Installing the spark plug
N Screw home the spark plug, fit the
boot and press it down firmly.
Engine Running Behavior
If engine running behavior is
unsatisfactory even though the air filter
is clean and the carburetor is properly
adjusted, the cause may be the muffler.
Have the muffler checked for
contamination (carbonization) by your
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
WARNING
Arcing may occur if the adapter nut (1) is
loose or missing. Working in an easily
combustible or explosive atmosphere
may cause a fire or an explosion. This
can result result in serious injuries or
damage to property.
SR 200
23
English
Maintenance and Care
The following intervals apply to normal operating conditions only. If your daily work
ing time is longer or operating conditions are difficult (very dusty work area, etc.),
shorten the specified intervals accordingly.
Complete machine
Control handle Check operation XX
Air filter
Manual fuel pump (if fitted)
Pickup body in fuel tank
Fuel tank Clean X
Carburetor
Spark plug
Cooling inlets
Spark arresting screen
All accessible screws and nuts (not adjust
ing screws)
Container with hose
Strainer in solution container (only with
mounted pressure pump or if ULV meter
ing knob is used)
1)
in muffler
Visual inspection (condition, leaks) XX
Clean X
Clean X
Replace X
Check X
Have repaired by servicing dealer
Have checked by servicing dealer
Have replaced by servicing dealer
Check idle adjustment XX
Readjust idle X
Readjust electrode gap X
Replace after every 100 operating hours
Visual inspection X
Clean X
Check X
Have cleaned or replaced by dealer
-
Retighten X
Visual inspection (condition, leaks) X
Clean X
Clean or replace
-
-
before starting work
after finishing work or daily
after each refueling stop
weekly
2)
2)
2)
2)
monthly
every 12 months
if problem
if damaged
as required
X
X
XX
X
XX
24
SR 200
English
The following intervals apply to normal operating conditions only. If your daily work
ing time is longer or operating conditions are difficult (very dusty work area, etc.),
shorten the specified intervals accordingly.
Metering unit on blower tube Check XX
Anti-vibration elements
Blower air intake screen
Throttle cable Adjust X
Safety labels Replace X
1)
not in all versions, market-specific
2)
STIHL recommends an authorized STIHL servicing dealer.
Check XXX
Have replaced by servicing dealer
Check XX
Clean X
-
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
2)
X
as required
SR 200
25
English
Minimize Wear and Avoid
Damage
Observing the instructions in this manual
helps reduce the risk of unnecessary
wear and damage to the power tool.
The power tool must be operated,
maintained and stored with the due care
and attention described in this owner's
manual.
The user is responsible for all damage
caused by non-observance of the safety
precautions, operating and maintenance
instructions in this manual. This includes
in particular:
– Alterations or modifications to the
product not approved by STIHL.
– Using tools or accessories which
are neither approved or suitable for
the product or are of a poor quality.
– Using the product for purposes for
which it was not designed.
– Using the product for sports or
competitive events.
– Consequential damage caused by
continuing to use the product with
defective components.
Maintenance Work
All the operations described in the
"Maintenance Chart" must be performed
on a regular basis. If these maintenance
operations cannot be performed by the
owner, they should be performed by a
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
If these maintenance operations are not
carried out as specified, the user
assumes responsibility for any damage
that may occur. Among other parts, this
includes:
– Damage to the engine due to
neglect or deficient maintenance
(e.g. air and fuel filters), incorrect
carburetor adjustment or
inadequate cleaning of cooling air
inlets (intake ports, cylinder fins).
– Corrosion and other consequential
damage resulting from improper
storage.
– Damage to the machine resulting
from the use of poor quality
replacement parts.
Parts Subject to Wear and Tear
Some parts of the power tool are subject
to normal wear and tear even during
regular operation in accordance with
instructions and, depending on the type
and duration of use, have to be replaced
in good time. Among other parts, this
includes:
– Filters (air, fuel)
– Rewind starter
– Spark plug
– Damping elements of anti-vibration
system
26
SR 200
Main Parts
19
#
13
12
11
5
4
2431BA026 KN
1
2
18
3
8
10
16
17
15
14
20
22
21
23
6
7
9
English
1 Container cap
2 Solution container
3 Muffler
4 Starter grip
5 Spark plug boot
6 Manual fuel pump
7 Carburetor adjusting screws
8 Choke knob
9 Air filter
10 Tank cap
11 Fuel tank
12 Deflector screen
13 Metering knob
14 Nozzle
15 Blower tube
16 Throttle trigger
17 Setting lever
18 Valve lever for solution feed
19 Throttle trigger lockout (depending
on market)
20 Pleated hose
21 Back padding
22 Harness
23 Backplate
24 Spacer (depending on market)
# Serial number (remove filter cover –
serial number is stamped on inside
of blower housing)
SR 200
27
English
Specifications
Engine
Single cylinder two-stroke engine
Displacement: 27.2 cc
Bore: 34 mm
Stroke: 30 mm
Engine power to
ISO 7293: 0.8 kW (1.1 bhp)
Idle speed: 2,500 rpm
Engine/blower speed: 7,500 rpm
Ignition System
Electronic magneto ignition
Spark plug (resistor
type): NGK CMR 6 H
Electrode gap: 0.5 mm
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity: 1050 cc (1.05 l)
Blowing Performance
Air velocity: 81 m/s
Max. air flow rate
without blower tube 780 m
Air flow rate with
nozzle: 580 m
3
/h
3
/h
Spraying Attachment
Container capacity: 10 l
Quantity left in
container: 50 ml
Mesh size of filler
strainer: 1 mm
Max. spraying range,
horizontal: 9 m
Suitable for plant
height up to: 2.5 m
For discharge rates with and without
mounted special accessories see
chapter on "Metering Unit"
Weight
Dry: 7.9 kg
Max. operating weight
(fueled and filled) 18.7 kg
Noise and Vibration Data
Noise and vibration data are measured
at idling and maximum rated speed in a
ratio of 1:6.
For further details on compliance with
Vibration Directive 2002/44/EC see
www.stihl.com/vib.
Sound pressure level L
peq
to
DINEN15503
SR 200: 94 dB(A)
Sound pressure level L
peq
to
DIN EN 15503
SR 200: 104 dB(A)
Vibration measurement a
hv,eq
to
DIN EN 15503
Handle, right
SR 200: 1.5 m/s
2
The K-factor in accordance with
Directive 2006/42/EC is 2.0 dB(A) for
the sound pressure level and sound
power level; the K-factor in accordance
with Directive 2006/42/EC is 2.0 m/s
2
for the vibration level.
REACH
REACH is an EC regulation and stands
for the Registration, Evaluation,
Authorisation and Restriction of
Chemical substances.
For information on compliance with the
REACH regulation (EC) No. 1907/2006
see www.stihl.com/reach.
Exhaust Emissions
The CO2value measured in the EU type
approval procedure is specified at
www.stihl.com/co2.
The measured CO
value was
2
determined on a representative engine
in accordance with a standardized test
procedure under laboratory conditions
and does not represent either an explicit
or implied guarantee of the performance
of a specific engine.
28
SR 200
English
000BA073 KN
The applicable exhaust emission
requirements are fulfilled by the
intended usage and maintenance
described in this instruction manual. The
type approval expires if the engine is
modified in any way.
Maintenance and Repairs Disposal
Users of this machine may only carry out
the maintenance and service work
described in this user manual. All other
repairs must be carried out by a
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
When repairing the machine, only use
replacement parts which have been
approved by STIHL for this power tool or
are technically identical. Only use highquality replacement parts in order to
avoid the risk of accidents and damage
to the machine.
STIHL recommends the use of original
STIHL replacement parts.
Original STIHL parts can be identified by
the STIHL part number, the {
logo and the STIHL parts symbol K
(the symbol may appear alone on small
parts).
Observe all country-specific waste
disposal rules and regulations.
STIHL products must not be thrown in
the garbage can. Take the product,
accessories and packaging to an
approved disposal site for environmentfriendly recycling.
Contact your STIHL servicing dealer for
the latest information on waste disposal.
SR 200
29
English
EC Declaration of Conformity
ANDREAS STIHL AG & Co. KG
Badstr. 115
D-71336 Waiblingen
Germany
declare in exclusive responsibility that
the product
Category: Sprayer
Make: STIHL
Model: SR 200
Serial identification: 4241
Displacement: 27.2 cc
conforms to the relevant requirements of
the Directives 2006/42/EC and
2014/30/EU and has been developed
and manufactured in compliance with
the following standards in the versions
valid at the time of production:
ISO 12100, EN 55012, EN 61000-6-1,
EN ISO 28139
Technical documents deposited at:
ANDREAS STIHL AG & Co. KG
Produktzulassung (Product Licensing)
The year of manufacture and serial
number are applied to the product.
Done at Waiblingen, 28.10.2016
ANDREAS STIHL AG & Co. KG
Thomas Elsner
Director Product Management and
Services
30
SR 200
English
SR 200
31
English
32
SR 200
0458-457-0121-A
englisch
G
www.stihl.com
*04584570121A*
0458-457-0121-A
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