Echo MB-5810 User manual

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OPERATOR'S MANUAL
MANUEL D'UTILISATION
BEDIENUNGSANLEITUNG
MANUALE PER L'OPERATORE
MANUAL DE INSTRUCCIONES
ENGLISH
FRANÇAIS
DEUTSCH
ITALIANO
ESPAÑOL
MB-5810
WARNING
READ THE INSTRUCTIONS CAREFULLY AND FOLLOW THE RULES FOR
SAFE OPERATION.
FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY.
AVERTISSEMENT
LIRE ATTENTIVEMENT LES INSTRUCTIONS ET SUIVRE LES RÈGLES DE
SECURITÉ. LE NON-RESPECT DES RÈGLES DE SÉCURITÉ ENTRAÎNE UN
RISQUE DE BLESSURE GRAVE.
WARNUNG
LESEN SIE DIE BEDIENUNGSANLEITUNG SORGFÄLTIG DURCH, UND
BEFOLGEN SIE DIE SICHERHEITSREGELN. ANDERNFALLS BESTEHT DAS
RISIKO SCHWERER VERLETZUNGEN.
AVVERTENZA
LEGGERE E SEGUIRE ATTENTAMENTE LE ISTRUZIONI PER LAVORARE IN
CONDIZIONI DI MASSIMA SICUREZZA. LA MANCATA OSSERVANZA DELLE
ISTRUZIONI POTREBBE PROVOCARE LESIONI GRAVI.
ADVERTENCIA
LEA ATENTAMENTE LAS INSTRUCCIONES Y SIGA LAS INDICACIONES
PARA UN FUNCIONAMIENTO SEGURO. DE NO HACERLO, PODRÍA SUFRIR
LESIONES GRAVES.

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1Top cover
ENGLISH
(Original instructions)
OPERATOR'S MANUAL
MIST BLOWER
MB-5810
WARNING
READ THE INSTRUCTIONS CAREFULLY AND FOLLOW THE
RULES FOR SAFE OPERATION.
FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY.

2
Contents
For safe use of your product............................................................................................... 3
Description.......................................................................................................................... 8
Before you start .................................................................................................................. 9
Packing list ....................................................................................................................9
Assembly .......................................................................................................................9
Preparing the fuel ........................................................................................................ 11
Chemicals.................................................................................................................... 12
Filling chemical tank .................................................................................................... 12
Engine operation............................................................................................................... 13
Starting the engine ...................................................................................................... 13
Stopping the engine..................................................................................................... 14
Operating mist blower....................................................................................................... 15
Emergency release...................................................................................................... 15
Adjusting spray pattern................................................................................................ 16
Adjusting spray volume................................................................................................ 16
Cleaning chemical tank and discharge tube................................................................ 16
Maintenance and care ...................................................................................................... 17
Servicing guideline....................................................................................................... 17
Maintenance and care ................................................................................................. 17
Troubleshooting table .................................................................................................. 20
Long-term storage(30 days or more)........................................................................... 21
Specifications.................................................................................................................... 22
Declaration of conformity .................................................................................................. 23

3
For safe use of your product
For safe us e of your product
Warning notices
Other indicators
Symbols
DANGER WARNING CAUTION
This symbol accompanied by the
word "DANGER" calls attentions to
an act or a condition which will lead to
serious personal injury or death of op-
erators and bystanders.
This symbol accompanied by the
word "WARNING" calls attentions to
an act or a condition which can lead to
serious personal injury or death of op-
erators and bystanders.
"CAUTION" indicates a potentially
hazardous situation which, if not
avoided, may result in minor or mod-
erate injury.
Circle and slash sym-
bol means whatever is
shown is prohibited.
NOTE IMPORTANT
This enclosed message provides tips
for use, care and maintenance of the
product.
Framed text featuring the word "IM-
PORTANT" contains important infor-
mation about the use, checking,
maintenance and storage of the prod-
uct described in this manual.
Symbol form/shape Symbol description/applica-
tion
Symbol form/shape Symbol description/applica-
tion
Carefully read the operator's
manual Petrol and oil mixture
Wear eyes, ears and head
protection
Choke Control "Cold Start"
Position (Choke Closed)
Wear foot protection and
gloves
Choke Control "Run" Position
(Choke Open)
Emergency stop Finger Severing
Wear respiratory protection Wear protective clothing
Keep bystanders away when
spraying
Beware of high-temperature
areas
Do not use the product in plac-
es with poor ventilation
Guaranteed sound power lev-
el

4
For safe use of your product
Safety decal(s)
The safety decal shown below has been attached to the products described in this manual. Ensure that you understand what
the decal means before using your product.
If the decal becomes unreadable due to wear and tear or damage, or peels off and is lost, please purchase a replacement decal
from your dealer and attach it in the location shown in the illustrations below. Ensure that the decal is readable at all times.
Beware of fire Beware of electric shocks
Symbol form/shape Symbol description/applica-
tion
Symbol form/shape Symbol description/applica-
tion
1. Safety decal (Part number X505-010980)
2. Safety decal (Part number X505-007710)

5
For safe use of your product
Important information
WARNING
Please ensure that you read the operator's manual before using your product.
About your operator's manual
This manual contains necessary information about the assembly, operation, and maintenance of your product.
Please read it carefully and absorb its contents.
Always keep your manual in a place where it is readily accessible.
If you have lost your manual or it is damaged and no longer readable, please purchase a new one from your dealer.
The units used in this manual are SI units (International System of Units). Figures in parentheses are reference val-
ues, and there may be a slight conversion error in some cases.
Failure to do so could lead to an accident or serious injury.
Intended use of this product
This product is high-performance petrol engined knapsack units designed for spreading liquid chemical.
Do not use this unit for any purpose other than aforementioned.
The content of this manual may be changed without notice for the purpose of upgrades to the product. Some of the
illustrations used may differ from the product itself in order to make the explanations clearer.
Please consult your dealer if anything is unclear or of concern.
Failure to do so could lead to an accident or serious injury.
Do not modify the product
You must not modify the product.
To do so could lead to an accident or serious injury. Any malfunction resulting from a modification to the product will not be
covered by the manufacturer's warranty.
Do not use the product unless it has been checked and maintained
You must not use the product unless it has been checked and maintained. Always ensure that the product is checked
and maintained on a regular basis.
Failure to do so could lead to an accident or serious injury.
Loaning or assigning your product
When loaning your product to another party, ensure that the person borrowing the product receives the operator's
manual along with it.
If you assign your product to another party, please enclose the operator's manual with the product when handing it
over.
Failure to do so could lead to an accident or serious injury.
Users of the product
The product should not be used by:
people who are tired
people who have taken alcohol
people who are on medication
people who are pregnant
people who are in poor physical condition
people who have not read the operator's manual
children
Avoid direct contact or ingestion of chemicals you may use. Consult the label the chemicals, you may use for addi-
tional warning and precautions as well as emergency treatment. Stop operating the unit immediately if you feel sick
or excessive fatigue during operation. See a doctor if this condition persists.
Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or their prop-
erty.
Failure to observe these instructions could lead to an accident.
The ignition system of this product generates electromagnetic fields during operation. Magnetic fields can cause
pacemaker interference or pacemaker failure. To reduce health risks, we recommend that pacemaker users consult
their physician and the pacemaker manufacturer before operating this product.

6
For safe use of your product
Vibration and cold
It is believed that a condition called Raynaud's Phenomenon which affects the fingers of certain individuals may be
brought about by exposure to vibration and cold. Exposure to vibration and cold may cause tingling and burning,
followed by loss of colour and numbness in the fingers. The following precautions are strongly recommended be-
cause the minimum exposure which might trigger the ailment is unknown.
Keep your body warm, especially the head and neck, feet and ankles, and hands and wrists.
Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks, and also by
not smoking.
Limit the number of hours of operation. Try to fill each day with jobs where operating the mist blower or other
hand-held power equipment is not required.
If you experience discomfort redness and swelling of the fingers, followed by whitening and loss of feeling, con-
sult your physician before exposing yourself further to cold and vibration.
Failure to observe these instructions could result in damage to your health.
Repetitive stress injuries
It is believed that over-using the muscles and tendons of the fingers, hands, arms and shoulders may cause sore-
ness, swelling, numbness, weakness and extreme pain to the areas just mentioned. Certain repetitive hand activities
may put you at a high risk for developing a repetitive stress injury (RSI). To reduce the risk of RSI, do the following:
Avoid using your wrist in a bent, extended or twisted position.
Take periodic breaks to minimize repetition and rest your hands. Reduce the speed and force in which you do the
repetitive movement.
Do exercises to strengthen hand and arm muscles.
See a doctor if you feel tingling, numbness or pain in your fingers, hands, wrists or arms. The sooner RSI is diag-
nosed, the more likely permanent nerve and muscle damage can be prevented.
Failure to observe these instructions could result in damage to your health.
Proper training
Do not permit operation without proper training and protective equipment.
Be thoroughly familiar with the controls and proper use of unit.
Know how to stop the unit and shut off the engine.
Know how to unhook a harnessed unit quickly.
Never allow anyone to use the unit without proper instruction.
Failure to observe these instructions could result in damage to your health.
Wear proper clothing.
Do not wear ties, jewellery, or loose, dangling clothing which could be caught in the
unit.
Do not wear open toed footwear, or go bare-foot or barelegged.
Secure hair so it is above shoulder length.
Failure to observe these precautions could result in damage to your sight or hearing, or lead
to a serious injury.
Wear protective gear
Always wear the following protective gear when working with the unit.
Head protection (cap): Protects the head
Ear muffs or ear plugs: Protect the hearing
Safety goggles: Protect the eyes
Officially approved toxic mist respirator: Protects the breathing
Non-slip, heavy rubber work gloves: Protect the hands from chemicals
Chemical resisting work clothes: Protect the body
Non-skid sole shoes (with toecaps) : Protect the feet
Failure to observe these precautions could result in damage to your sight or hearing, or lead to a serious injury.
Environment of use and operation
Do not use the product:
a windy day or rainy day to avoid chemical drift.
on steep slopes or in places which give no secure foothold and are thus slippery.
at night or in dark places with poor visibility.
A serious injury could result if you fall or slip, or fail to operate the product correctly.
Heavy protective clothing can increase operator fatigue which may lead to heat stroke. Delay heavy work until the
temperature drops.
Failure to observe these instructions could result in damage to your health.
WARNING

7
For safe use of your product
Being prepared in case of an injury
In the unlikely event of an accident or injury, please ensure that you are
prepared.
First aid kit
Towels and wipes (to stop any bleeding)
Whistle or mobile phone (for calling outside help)
If you are unable to perform first aid or call for outside help, the injury could
worsen.
Put safety first in the case of fire or smoke
If fire comes from the engine or smoke appears from any area other than the exhaust vent, first distance
yourself from the product to ensure your physical safety.
Use a shovel to throw sand or other such material on the fire to prevent it from spreading, or put it out
with a fire extinguisher.
A panicked reaction could result in the fire and other damage becoming more extensive.
WARNING

8
Description
Description
1. Chemical tank cap
2. Chemical tank Contains chemical.
3. Spark plug
4. Starter handle Pull handle to start the engine.
5. Discharge tube
6. Valve
7. Throttle trigger lockout Locks throttle trigger in the
idling position until you have a proper grip with your right
hand around the handle.
8. Ignition switch "Slide switch" mounted on top of the
throttle trigger housing, move switch forward to RUN,
backward to STOP position.
9. Throttle trigger Activated by the operator's finger for
controlling the engine speed.
10. Nozzle
11. Shoulder harness An adjustable strap to suspend unit.
12. Cushion back-plate
13. Air cleaner cover Covers air filter.
14. Fuel tank cap For closing the fuel tank.
15. Fuel tank Contains fuel and fuel filter.
16. Card case
17. Type and serial number

9
Before you start
Before you start
Packing list
Assembly
1. Assemble clamp with guide loop (A) onto end with larger di-
ameter of flexible pipe (C). Place clamp with opening side
(B) of clip directed upward.
2. Assemble flexible pipe to elbow.
3. Place clamp with guide loop around midway between end of
flexible pipe and bellows. Position guide loop on outside of
flexible pipe at inclined angle of around 45° upward, and
tighten clamp.
The following parts are packed separately in the packing box.
When you have unpacked the box, please check the parts that it contains.
Contact your dealer if anything is missing or broken.
1. Mist blower
2. Curved pipe
3. Straight pipe
4. Straight pipe
5. Flexible pipe
6. Swivel pipe
7. Screw
8. Packing
9. Clamp with guide loop
10. Clamp
11. Operator's manual
12. Clip
13. Socket wrench
14. Rubber band
15. Band
16. Nozzle
WARNING
Read the operator's manual carefully to ensure that you assemble the product correctly.
Using a product that has been incorrectly assembled could lead to an accident or serious injury.

10
Before you start
4. Install packing (D) to swivel pipe (E).
5. Assemble swivel pipe to flexible pipe.
6. Assemble straight pipe (F) to swivel pipe.
7. Tighten the screw (G).
8. Clip throttle cable (H) into guide loop.
9. Position handle (I) at a location suitable for comfortable op-
eration, and tighten knob.
10. Assemble one straight pipe to the other.
11. Put discharge tube (J) into rubber band (K).
12. Insert a clip (L) to the pipe.
13. Insert a pin (M) into the clip.
14. Assemble curved pipe (N) onto straight pipe.
15. Insert a clip into the pipe.
NOTE
If you need to remove the clip, turn it by 90 degrees anti-
clockwise and pull it out.

11
Before you start
16. Assemble nozzle pipe (O) to carved pipe.
17. Insert a clip to the pipe.
18. Assemble valve (P) to clamp and tighten clamp.
19. Insert discharge tube into chemical tank (Q).
20. Using a tool like pliers, fix the tube with band (R).
Preparing the fuel
Fuel
Recommended mixture ratio; 50 : 1 (2 %) for ISO-L-EGD
Standard (ISO/CD 13738), JASO FC,FD grade and ECHO
Premium 50 : 1 oil.
Do not mix directly in engine fuel tank.
DANGER
Do not fuel up while the engine is hot or in operation.
Do not smoke or hold a flame near when refuelling.
If you do so, the fuel could ignite and cause fire, leading to burns.
WARNING
Do not fill fuel tanks indoors. Always fill fuel tanks outdoors over bare ground. Do not refuel the product on the load-
ing platform of a truck, or in other such places.
Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize.
Otherwise, fuel may get spewed.
Mop up any fuel that overflows or spills out due to overfilling.
Fuel spills can cause fire and burns when ignited.
After refuelling, always check that there are no leaks or discharges of fuel from the fuel pipe, fuel system grommets,
or around the fuel tank cap. If you do find fuel leaks or discharges, stop using the product immediately and contact
your dealer to have it repaired.
Any fuel leaks could cause fire.
Keep the refuelling tank in a shaded area away from fire.
Use an approved fuel container.
IMPORTANT
Fuel is a mixture of regular grade petrol and an air-cooled 2-stroke engine oil of reputable brand name. Minimum 89 Octane
unleaded petrol is recommended. Do not use fuel containing methyl alcohol or more than 10% of ethyl alcohol.
Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days.

12
Before you start
Fuel supply
Do not add so much fuel that it reaches the mouth of the fuel
tank (A). Keep the fuel within the prescribed level (up to the
shoulder level (B) of the fuel tank).
Tighten the fuel tank cap securely after refuelling.
Chemicals
Filling chemical tank 1. Close liquid valve (A).
2. Fill the tank with liquid chemical through the strainer (B). Do
not fill without strainer. (Dust in the tank may cause clogging
of the liquid line or pump)
3. Stir up after filling to avoid chemical deposits at bottom of
tank.
4. Secure the chemical tank cap (C).
5. On a piece of paper (50 mm × 90 mm), write the name of the
chemical to be used.
6. Put the paper in the card case (D) to show the chemical the
tank contains.
WARNING
Avoid direct contact and ingestion of chemicals. Some chemicals may be strongly harmful to human and animals.
Misuse of the chemicals can result in serious poisoning or death.
Sulfur is a very inflammable material. When spraying chemicals containing sulfur, carefully read explanation on ap-
plication attached to the chemicals and treat them with care.
NOTE
Do not dilute chemicals directly in the chemical tank.
Follow all precautions and instructions in the label of chemicals when handling.
Never allow untrained persons or children to handle chemicals and the unit.
Stop engine and put the unit down when filling chemicals.
Be sure to close valve before filling chemicals.
Do not overfill chemicals and wipe spillage away immediately.
Secure chemical tank cap firmly to avoid leakage of chemicals during the operation.
NOTE
The tank is calibrated by each liter up to 20(12) liters.
Strainer
4 ribs
Part number : 254210-03210
Mesh size : 40

13
Engine operation
Engine operation
Starting the engine
Starting a cold engine
(Connect the spark plug cap if the product has been in storage for
a long period of time.)
1. Placing the product on level ground.
2. Be sure that valve is closed.
3. Move the ignition switch (A) to the Start position.
4. Make sure that the throttle trigger (D) is at the idle speed po-
sition.
5. Move the choke lever (F) to the "Cold Start" (E) position.
6. Alternately press and release the purge bulb (H) until the fuel
is sucked up into it.
7. Checking that the area around you is safe, hold the product
firmly as shown in the illustration, pulling several times on
the starter grip (I).
8. If you hear an explosion-like sound and the engine stops im-
mediately, move the choke lever to the "Run" (G) position
and continue pulling on the starter grip to start the engine.
9. If the engine does not stop, return the choke lever gently to
the "Run" position.
10. Leave the engine to warm up at idle speed for a while.
WARNING
Be particularly careful to observe the following precautions when starting the engine:
Move at least 3m from the place where you refueled.
Place the product in a flat, well ventilated place.
Check that there are no fuel leaks.
Check that none of the nuts and bolts are loose.
Leave plenty of space around the product and do not allow people or animals near it.
Take precautions to keep hair from being drawn into fan.
Start the engine with the throttle trigger in the idle speed position.
Hold the product firmly to the ground when starting the engine.
Failure to observe the precautions could cause an accident or injury, or even lead to a fatality.
Check that there are no abnormal vibrations or sounds once the engine starts. Do not use the product if there are
abnormal vibrations or sounds. Contact your dealer to have it repaired.
Accidents involving parts that fall or shatter off can cause wounds or serious injury.
The exhaust fumes from the engine contain toxic gases. Do not operate the product indoors or in other
ill ventilated places.
The exhaust fumes could cause poisoning.
Do not touch silencer, spark plug, and other high temperature components while the product is running
or for some time after it stops.
You could burn yourself if you touch a high temperature component.
Do not touch spark plug, spark plug wire, and other high voltage components while the product is run-
ning.
You could receive an electric shock if you touch a high voltage component while the product is running.
NOTE
Pull out the starter grip gently at first, and then more rapidly. Do not pull the starter rope out to more than 2/3 of its length.
Do not let go of the starter grip as it returns.

14
Engine operation
When engine is hard to start, use throttle latch (C). (Pull throt-
tle trigger fully and lower throttle latch while pressing throttle
trigger lockout (B) and release throttle trigger to activate throt-
tle latch. After engine starts, pull throttle trigger slightly to re-
lease throttle latch immediately.)
Starting a warm engine
1. Move the ignition switch (A) to the Start position.
2. Make sure that the throttle trigger (D) is at the idle speed po-
sition.
3. Check that the choke lever is in the "Run" position.
4. If no fuel is visible in the purge bulb, alternately press and re-
lease the purge bulb until the fuel is sucked up into it.
5. Checking that the area around you is safe, hold the position
closest to the engine firmly, and pull on the starter grip to
start the engine.
6. Checking that the area around you is safe, hold the product
firmly, pulling several times on the starter grip (I).
Stopping the engine 1. Move the throttle trigger (B) to the idle speed position and set
the engine to idling (i.e. low speed).
2. Move the ignition switch (A) to the Stop position.
3. In the event of an emergency, stop the engine immediately
using the ignition switch.
4. If the engine fails to stop, move the choke lever to the "Cold
Start" position. The engine will stall and come to a halt (an
emergency stop).
If the engine fails to stop when the ignition switch is used, have
the ignition switch checked and repaired by your dealer before
you use the product again.
5. Always disconnect the spark plug wire from the spark plug to
ensure the engine cannot be started before you work on the
unit or leave it unattended.

15
Operating mist blower
Operating mist blower
Emergency release
Pull up the buckle upward at the time of the emergency.
The harness of the side of the buckle pulled up upward is loos-
ened by the one's own weight and the blower is easily taken
down.
Practice this procedure prior to operating this unit.
WARNING
Before starting the job, check wind direction. Avoid blowing in the direction of
open doors and windows, cars, pets, children or anything that could be harmed by
chemical.
Spray to the leeward otherwise it causes agrichemicals to fly to the workers.
This unit is designed for upright use only, do not lay down or lean excessively to avoid leakage of chemicals when
operating and transporting.
This unit will change your equilibrium. Extra precautions should be taken to maintain your footing and balance.
Check the shoulder harnesses are not tangled with any control levers when you put the unit on your back.
Transport of the product
When transporting in the situations described below, turn off the engine and position the silencer away from your-
self.
Moving to the place where you are working.
Moving to another area while you are working.
Leaving the place where you have been working.
Failure to observe these precautions could cause burns or serious injury.
When transporting the product by car, empty the fuel tank, and secure the product firmly in place to prevent it from
moving around.
Travelling by car with fuel in the fuel tank could lead to a fire.
IMPORTANT
Mist blowing must be done leewardly. Choose morning or evening when it is not so windy, and the ground temperature re-
verses, so as to minimize dispersion Iosses and enhance chemical adhesion effect and for less hazardous operation.
Before operating the unit, check and follow Iocal regulations concerning sound level and hours of operation.
Avoid using units when people are likely to be disturbed, such as late at night or early in the morning.
Operate the unit at the lowest possible throttle setting that gets the job done.
Make sure the silencer works well. Also check the air intakes and the air filter to make sure the unit is working properly.
Use only one piece of equipment at a time.
1. Buckle

16
Operating mist blower
Adjusting spray pattern The spray pattern can be adjusted from the straight stream to an
open spray by adjusting the position of collar.
Loosen collar nut (A) and pull collar (B) forward to obtain a
straight stream.
Push collar backward to obtain a wide spray.
Adjusting spray volume The spray volume can be adjusted by lining up the number (A)
with mark as shown. The spraying volume is prescribed as fol-
lows.
(Orientation of the pipe: horizontal)
Cleaning chemical tank and discharge tube Clean chemical tank and discharge tube after each use.
1. Fill chemical tank with clear water and run the engine.
2. Spray through nozzle for 2 to 3 minutes for cleaning.
3. Close the valve (A).
4. Stop the engine
5. Open the valve.
6. Remove the drain plug (B) and drain water.
7. Reinstall the drain plug and close the valve.
Settingnumber 123456
Discharge volume
(L /min) 0.6 1.0 1.7 3.0 4.5 5.2
NOTE
Keep nozzle at a distance of 70 cm far from plants to pre-
vent damage.
Make job done before diluted chemical depositing at the
bottom of the chemical tank..
WARNING
Do not remove the drain plug with the valve open.
You will be exposed to chemicals.

17
Maintenance and care
Maintenance and care
Servicing guideline
Maintenance and care
Cleaning air filter
1. Close choke, remove air cleaner cover (B).
2. Remove air filter.
3. Brush dirt from filter or clean with compressed air.
4. Reinstall air filter and cover.
WARNING
Observe the following precautions when checking and maintaining your product after use:
Turn the engine off and do not attempt to check or maintain the product until the engine has cooled.
You could burn yourself.
Remove the spark plug cap before performing checks and maintenance.
An accident could occur if the product starts unexpectedly.
IMPORTANT
Checking and maintenance requires specialist knowledge. If you are unable to check and maintain the product or deal with a
fault yourself, consult your dealer. Do not attempt to dismantle the product.
Area Maintenance Page Before use Monthly
Air filter Clean/Replace 17 •
Fuel filter Inspect/Clean/Replace 18 •
Spark plug Inspect/Clean/Adjust/Replace 19 •
Carburettor Inspect/Replace and adjust - •
Cooling system Inspect/Clean 18 •
Silencer Inspect/Tighten - •
Silencer Clean 18 •*
Starter Inspect - •
Fuel system Inspect 19 •
Screws, bolts and nuts Inspect, Tighten/Replace - •
* Or 100 hours, whichever occurs first.
IMPORTANT
Time intervals are maximum. Actual use and your experience will determine the frequency of required maintenance.
If you have any questions or problems, please contact your dealer.
NOTE
Clean air filter (A) after each use.

18
Maintenance and care
Replacing fuel filter
1. Use a piece of metal wire or the like to pick up fuel filter (A)
through fuel tank opening.
2. Pull old filter from fuel line (B).
3. Install new fuel filter.
4. Make sure fuel filter goes to bottom of the tank.
Cooling system maintenance
Remove dust and dirt from between fins (A).
Remove all dirt, Ieaves, and other debris from fan case grid.
Care should be taken not to let foreign objects enter fan case
through grid (B). It surely cause damage to fan and fan case.
Cleaning silencer
Clean silencer by removing carbon deposits at outlet port (A).
This should be done periodically to maintain constant perfor-
mance of engine.
NOTE
A clogged fuel filter will cause hard starting or poor engine
performance.
Keep fuel tank clean - do not allow dirt or debris to enter fuel
tank.
WARNING
Do not place hand between engine and backpack housing while engine is in operation. Be sure the en-
gine is fully stopped before inserting hands to remove any debris. If available, use a utensil to remove
the debris.
Failure to observe the precautions could cause an accident or injury, or even lead to a fatality.
IMPORTANT
To maintain proper engine operating temperature, cooling air must pass freely through the cylinder fin area. This
flow of air carries combustion heat away from the engine. Overheating and engine seizure can occur when:
Air intakes are blocked, preventing cooling air from reaching the cylinder,
Dust and grass build up on the outside of the cylinder. This build-up insulates the engine and prevents the heat
from leaving.
Removal of cooling passage blockages or cleaning of cylinder fins is considered "Normal Maintenance". Any resultant failure
attributed to lack of maintenance is not warranted.