1Top cover
ENGLISH
(Original instructions )
FRANÇAIS
DEUTSCH
ITALIANO
ESPAÑOL
OPERATOR'S MANUAL
CHAIN SAW
WARNING
Read the instructions carefully and follow the rules for safe
operation.
Failure to do so could result in serious injury.
Introduction
2Introduction
This chain saw is desi gned for cutting wood or wood products.
Do not cut solid metal, sheet metal, plastic or any non-wood materials.
It is important for you to understand all safety precautions correctly before using your chain saw.
Misuse of the chain saw can cause serious bodily injury.
Never let children operate the saw.
This manual shows rules of safe operation, proper use, servicing, and maintenance of your ECHO chain saw.
Follow these instructions in order to maintain a good operating condition and a long service life.
For future reference, you should keep this operator's manual.
If this operator's manual has become illegible through impairment or is lost, please purchase a new one from your ECHO dealer.
When renting or lending this machine to a person who will operate it, always include this operator's manual, which provides
explanation and instructions.
When transferring a product, please deliver it attaching the operator's manual.
Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are
subject to change without notice.
Illustrations may include optional equipment and accessories, and may not include all standard equipment.
The unit is delivered with guide bar and saw chain separated.
Install guide bar and chain.
If there is any clause in this manual that is hard to be understood, please contact your ECHO dealer.
Manufacturer
YAMABIKO CORPORATION
7-2 SUEHIROCHO 1-CHOME, OHME, TOKYO 198-8760, JAPAN
Authorized Representative in Europe
Atlantic Bridge Limited
Atlantic House, PO Box 4800, Earley, Reading RG5 4GB, United Kingdom
2
Contents
Decals and symbols............................................................................................................4
Rules for safe operation .. ....... ...... ....... ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ....... ...... ...5
1. General precautions ..................................................................................................5
2. Kickback safety precautions......................................................................................7
3. Other safety precautions............................................................................................8
Description........................................................................................................................10
Assembly ..........................................................................................................................11
Mounting guide bar and chain .....................................................................................11
Operation..........................................................................................................................12
Fuel and lubricant........................................................................................................12
Chain lubricant.............................................................................................................12
Starting the cold engine...............................................................................................13
Starting the warm engine.............................................................................................14
Running .......................................................................................................................14
Stopping the engine............................. ....... ...................................... ....... ...... ....... ...... .15
Checking chain tension................................................................................................15
Chain lubrication test ...................................................................................................15
Pre cutting test.............................................................................................................15
Correct use of chain brake................................................................................................16
Chain brake .................................................................................................................16
Checking the brake function of the brake....................................................................17
Release the chain brake..............................................................................................17
Non-manual chain brake..............................................................................................17
Cutting instruction............................... ...... ....... ...... ....... ...... ....................................... .......18
General........................................................................................................................18
Felling a tree................................................................................................................19
Limbing........................................................................................................................20
Bucking........................................................................................................................20
Tension and compression in timber.............................................................................21
Service maintenance guide ..............................................................................................22
Troubleshooting................................................................................................................23
Saw chain maintenance....................................................................................................24
Service..............................................................................................................................26
Air filter ............................. ...... ....... ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ....... .......26
Check fuel system .......................................................................................................26
Fuel filter......................................................................................................................26
Oil filter ............................. ...... ....... ...... ....... ...... ....................................... ...... ....... .......26
Spark plug ...................................................................................................................26
Cylinder fins (Cooling system).....................................................................................27
Guide bar.....................................................................................................................27
Sprocket ......................................................................................................................27
Carburettor ..................................................................................................................27
Automatic oiler.............................................................................................................27
Replacement guide bar and chain...............................................................................28
Storage .............................................................................................................................29
Long term storage (Over 30 days)...............................................................................29
Disposal procedure...........................................................................................................30
Specifications....................................................................................................................31
Declaration of conformity..................................................................................................32
3
Decals and 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 operators and bystanders.
Circle and slash symbol
means whatever is
shown is prohibited.
Symbol form / shape Symbol description / application Symbol form / shape Symbol description / application
Carefully read the operator's manual Chain oiler adjustment
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 operators a nd bystanders.
NOTE
This enclosed message provide tips
for use, care and m ai nte nance of the
unit.
"CAUTION" indicates a potentiall y
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
Wear eyes, ears and head protection Decompression device
Warning!
Kickback may occur!
Emergency stop Carburettor adjustment
Chain brake operation Carburettor adjustment
Oil and petrol mixture Recommended maximum speed
Chain oil fill / oil pump Guaranteed sound power level
Carburettor adjustment
- Low speed mixture
- High speed mixture
- Idle speed
Locate this safety decal on your unit.
The complete unit illustration found in the "Description"
section will help you locate them.
Make sure the decal is legible and that you understand and
follow the instructions on it.
If a decal cannot be read, a new one can be ordered from
your ECHO dealer.
4
Rules for safe operation
1. General precautions
Operator's manual
Read the operator's manual for your chain saw carefully.
Be thoroughly fa milia r wit h the chai n saw 's c ontrols and how to us e the cha in sa w pr operly .
Failure to follow instructions could lead to personal injury.
If you have any questions or problems, please contact your ECHO dealer.
Physical condition
Do not operate a chain saw when you are fatigued or under the influence of alcohol or
drugs.
You should be in good phys ical and mental health in ord er to handle you r chain saw safe ly.
Errors in judgement or execution can be serious or fatal.
If you have any physical condition which strenuous work could worsen, check with your
physician before using a chain saw.
Do not operate when ill or fatig ued, or under the influence of any su bs tanc e or m ed ica tion
which could affect your vision, dexterity or judgement.
Personal equipment
CAUTION
Stuffing ears with cotton is not recommended.
Always wear approved goggles to protect your eyes.
Wood chips, dust, snapping branches and other debris can be thrown by the cutting
chain into the operator's facial area.
Goggles may also offer limited protection in the event of the cutting chain hitting the
operator in the eye area.
If conditions warrant that a ventilated face shield be worn, goggles must be worn
underneath it.
ECHO advises wearing hearing protection at all times.
If not followed, hearing loss can occur.
You should reduce th e risk of he aring da ma ge by wea ring eit her "hea dset" type pro tectors
or ear plugs which are approved by an authorized organization.
All persons who make part of their living using chain saws should be tested periodically for
hearing deterioration.
Always wear a cap or hat when working with a chain saw.
A safety hard hat is highly recommended when felling or working under trees, or when
objects can fall on you.
Wear heavy duty, n on-slip glo ves for improv ed grip, and a lso for protect ion against c old and
vibration.
Safety tip shoes or boots with non-slip sole should be worn.
Never wear loose clothing, unbuttoned jackets, flared sleeves and cuffs, scarves,
tie-strings, neckties, cords, chains, jewellery, etc. which could snag the saw chain or
underbrush.
Clothing should be of sturdy, protective material.
It should be snug-fitting to resist snagging, but roomy enough for freedom of movement.
Trouser legs should not be flare d or cu ffed, and should be either tucked into the boot tops
or trimmed short.
Safety vests, leg chaps and logger's pants of ballistic material are available.
It is the operator's responsibility to wear such additional protection if conditions warrant it.
Never operate a chain saw when you are alone.
Arrange to have someone remain within calling distance in case you need help.
5
Fuel
DANGER
Petrol and fuel are extremely flammable.
If spilled or ignited by ignition source, it can cause fire and serious injury or
property damage.
Extreme caution is required when handling petrol or fuel.
After refuelling, tighten fuel cap firmly and check for leakage.
In case of fuel leakage, repair before starting operation since there is a danger of
fire.
1. Oil tank cap
2. Fuel tank cap
A: Tightening direction
Use an appropriate type of fuel container.
Bring an extinguisher or shovel in case of fire.
Despite the precautions which can be taken, operating a chain saw, or just working in the
forest, presents dangers.
Do not smoke or bring flame or sparks near to fuel supplies.
The fuel tank may be under pressure.
Always loosen the fuel cap and wa it for pres sure to be equalized before rem ov in g the cap .
Fill the fuel tank outdoors over bare ground and install the fuel cap securely.
Do not pour fuel indoors.
Wipe any spilled fuel off the unit.
Never refuel while the engine is still hot, or fuel a running engine.
Do not store the unit with fuel in its tank, because a fuel leak could start a fire.
Starting engine
Move the chain saw at least 3 m from the fuelling point before starting the engine.
Do not allow other pe rsons to be near the ch ain saw when you are starting or cutti ng with
the chain saw.
Keep bystanders and anima ls out of the work area.
Do not let anyone hold wood for you to cut.
Do not start cutting until you ha ve a clear wor k area, secure fo oting and a p lanned retreat
path from the falling tree.
Before you start the engine, make sure that the saw chain is not contacting anything.
Keep the handles dry, clean, and free of oil or fuel mi xture.
Operate the chain saw only in well-ventilated areas.
Exhaust gas, oil mist (from chain saw lubrication) or saw dust is harmful to health.
Transportation
1. Guide bar cover
When transporting your chain saw, use the appropriate guide bar cover.
Carry the chain saw with the engine st opped, the guide ba r and saw chain to th e rear, and
the silencer away from your body.
6
2. Kickback safety preca u tions
DANGER
Kickback safety precaution for cha in saw use r s: kick bac k may occu r when the nose
or tip of the guide bar tou ches an object or when the wood cl oses in and pinch es t he
saw chain in the cut.
In some cases, ti p contact may ca use a lightni ng-fast revers e reaction, ki cking the gui de
bar up and back toward the operator (this is called a rotational kickback).
Pinching the saw chain along the top of the guide bar may push the guide bar rapidly
back toward the operator (this is called a linear kickback).
Either or these react ions may cause you to l ose control of the saw and co me in contact
with the moving chain, which could result in serious personal injury.
As a chain saw user, you should take several steps to keep your cutting jobs free from
accident or injury.
With a basic understanding of kickback, you can reduce or eliminate the element of
surprise.
Sudden surprise contributes to accidents.
Understand that rota tional kic kback is preventable by keeping an unshiel ded bar nose fro m
touching an object or the ground.
Do not operate a chain saw with one hand!
Serious injury to the operator, helpers or bystanders may result from one-handed
operation.
For proper control, always use two hands when operating a chain saw, one of which
operates the trigger.
Otherwise, this can result in the chain saw "skating" or skidding, which can result in
personal injury due to loss of control.
Keep a good firm grip on the saw which both hands, with the right hand on the rear
handle and the left hand on the front handle, when the engine is running.
Use a firm grip with thumbs and fingers encircling the chain saw handles.
A firm grip will help you reduce kickback and maintain control of the saw.
Two hands must be used to control the saw at all times.
Do not overreach or cut above chest height.
Make sure that the area in which you are cutting is free from obstructions.
Do not let the bar nose contact a l og, bra nch, or any other obs truction which cou ld be hit
while you are operating the saw.
Cutting at high engine speeds may reduce the likelihood of kickback.
But cutting at part-thro ttle or low engine spe eds may b e prefe rable to co ntrol the ch ain saw
in tight situations and may als o reduc e the lik el iho od of kic kb ac k.
Follow manufacturer's sharpening and maintenance instructions for the saw chain.
Use only replacement guide bars and chains specified by the manufacturer, or the
acceptable equivalents of these guide bars and chains.
7
3. Other safety precautions
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 cold and vibration.
Accordingly, your ECHO chain saw has shock mounts designed to reduce the intensity of
vibration received through the handles.
Exposure to cold and vibration may cause tingling and burning followed by loss of colour and
numbness in the fingers.
We strongly recommend you take the following precautions because 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 bloo d circulati on by performin g vigorous arm exercises du ring frequent work
breaks and also by not smoking.
Limit the number of hours of chain saw operation.
Try to fill a part of each work day with jobs other than chain sawing.
If you experien ce discomfor t, redness and swelling of t he fingers, followed by w hitening and
loss of feeling, consul t your physici an before further ex posing yours elf to cold and vi bration.
Repetitive stress injuries
It is believed that over-using the muscles and tendons of the fingers, hands, arms and
shoulders may cause soreness, swelling, numbness, weakness and extreme pain to the
areas just mentioned.
To reduce the risk of repetitive stress injury, do the following:
Avoid using your wrist in a bent, extended or twisted position.
Instead, try to maintain a straight wrist position.
Also, when grasping, use your whole hand, not just the thumb and index finger.
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 the han d and arm musc le s.
See a doctor if you feel tingling, numbness or pain in the fingers, hands, wrists or arms.
Relative to EU directive "Vibration"
EU Directive "Vibration" (2002/44/EC) was designed to protect people from safety and health
risks arising from mechanical vibration of a machine by enforcing employers to limit a
standardized 8 hour daily vibration exposure level, A(8).
Any person or organization that employs a person to operate a machine has to take the A(8)
value into account when letting the person use it.
Mechanical vibration values (equivalent vibration value) of this machine, which shall be used
as a guide to simplify the calculation of A(8) value, are as follows:
MODEL Type
Front / Left handle (m/s2)4.4
Rear / Right handle (m/s
2
)4.3
8
Machine conditions
WARNING
Do not modify a chain saw in any way.
Only attachments and parts supplied by ECHO or expressly approved by ECHO for
use with the specific ECHO chain saw models are authorized.
Although certain unauthorized attachments are useable with the ECHO powerhead,
their use may, in fact, be extremely dangerous.
Do not operate a ch ain saw that is damaged, imp roperly adjus ted, or not comple tely and
securely assembled.
Do not operate the chain saw with a loose or defective silencer.
Be sure that the saw chain stops moving when the throttle control trigger is released.
Cutting
CAUTION
Do not touch hot s urfaces of cylinder cover and sil encer after you used the chain saw .
Do not operate a chain s aw in a tree u nle ss you have been specific al ly tr ain ed to do s o.
Keep all parts of your body away from the saw chain when the engine is running.
Use extreme caution when cutting small-size brush and saplings because slender
material may catch the saw chain and be whipped toward you or pull you off balance.
Stay on the uphill side when bucking or limbing logs which might roll when cut.
When cutting a limb that is under tens ion, be alert for spri ng-back so that you will no t be
struck by the limb or chain saw when the tension in the wood fibres is released.
Cutting while on a ladder is extremely dangerous because the ladder can slip and your
control of the chain saw is limited.
Working aloft should be left to professionals.
Keep both feet on the ground.
Do not work from off-the-ground positions.
Stop the engine before setting the chain saw down.
Wood practices
Operating a chain saw safely requires a chain saw in proper working order, sound
judgement, and knowledge of the methods which should be applied in each cutting
situation.
Do not let any person use your saw unless he has read this operator's manual and fully
understands its instructions.
Use your saw only to cut wood or wood products.
Do not cut solid metal, sheet metal, plastics or any non-wood materials.
Services
All chain saw service operations, other than items listed in the operator's manual
maintenance instructi ons , sho uld be perform ed by co mpetent service personnel.
(For example, if an improper tool is used to hold the flywheel in order to remove the
clutch, structural da mage to the fly wheel c ould occur and subsequ ently cou ld cause the
flywheel to burst.)
9
Description
1. Silencer - The silencer controls the exhaust noise and
prevents hot, glowing particles of carbon from leaving the
silencer.
2. Front hand guard - Guard b etween the front handl e and
the saw chain for protecting the hand from injuries and
aiding in cont rol of the chain saw if the h and slips off the
handle.
This guard is use d to a ctivate the chain brake w hich is to
stop the saw chain rotation.
3. Choke control knob - Device for enriching the fuel / air
mixture in the carburettor to aid cold starting.
4. Rear handle (for the right hand) - Support handle
located towards the rear of the engine housing.
5. Rear hand guard - Extension on the lower part of the
rear handle for protecting the hand from the chain if it
breaks or degrooves.
6. Clutch cover - Protective cover to the guide bar, saw
chain, clutch and sprocket when the chain saw is in use.
7. Chain tension adjuster - D evice to a djust chain t ension.
8. Chain catcher - A projecti on designed to reduce the risk
of the operator's right hand from being hit by a chain
which has broken or derailed from the guide bar during
cutting.
9. Guide bar - The part that supports and guides the saw
chain.
10. Chain - Chain, serving as a cutting tool.
11. Spiked bumper - Device, fitted in front of the guide bar
mounting point, acting as a pivot when in contact with a
tree or log.
12. Decompression device - Device for lowering the
compression in the cylinder, to aid starting.
13. Oil tank cap - For closing the oil tank.
14. Starter handle - The grip of the starter, for starting the
engine.
15. Fuel tank cap - For closing the fuel tank.
16. Manual oil pump - Device for prope r lubrication of chain .
17. Throttle trigger - Device activated by the operator's
finger, for controlling the engine speed.
18. Throttle trigger lockout - A safety lever which must be
depressed before the throttle trigger can be activated in
order to prevent the accidental operation of the throttle
trigger.
19. Ignition switch - Device for connecting and
disconnecting the ignition system and thus allowing the
engine to be started or stopped.
20. Cleaner cover latch - Device for installing the air clea ner
cover.
21. Air cleaner cover - Covers air filter.
22. Safety decal - Part number 890345-39231
23. Front handle (for the left hand) - Support handle
located at the front of the engine housing.
24. Cylinder cover - The cooling air flow grill.
It cover the cylinder, spark plug and silencer.
25. Operator's manual - Included with unit.
Read before operation and keep for future reference to
learn proper, safe operating techniques.
26. Tools
27. Guide bar cover - Device for covering the guide bar and
- 13 x 19 mm T-wrench (combination screwdriv er
/ spark plug socket), small s crewdriver, 4 mm hexago nal
wrench, spiked bumper and two bolts (5 x 12).
saw chain during transport and other times when the
chain saw is not in use.
10
Assembly
Mounting guide bar and chain
WARNING
For your own safety, always stop the engine before performing any of the following
operations.
CAUTION
1. All adjustments should be made cold.
2. Always wear gloves when working on chain.
3. Do not operate with a loose chain.
NOTE
Move the chain brake le ver (Fron t hand gu ard) full y rea rward to rem ove or in stall th e clutc h
cover to the chain saw.
1. Release chain brake
2. Two nuts
3. Clutch cover
4. Spiked bumper
5. Two bolts
Install guide bar and chain as follows.
Unscrew two nuts and remove clutch cover.
Install the spiked bumper on the front of machine. (Use two bolts.)
Mount the bar and slide toward clutch to make saw chain installation easier.
6. Guide bar
7. Clutch
8. Bar hole
9. Tension adjuster
10. Direction to tension the chain
Install saw chain as shown.
(Ensure cutters are pointing in the right direction)
Release the chain brake, and install the clutch cover over the guide bar studs.
Tighten two nuts finger tight.
Ensure that chain tension adjuster fits into bar hole.
Hold the bar nose up and turn the adjuster clockwise until the chain fits snugly against
the underside of the bar.
A: Proper tension
B: Improper tension
Tighten both nuts with the bar nose held up.
Pull the chain around the bar by hand.
Loosen the adjustment if you feel tight spots.
11
Operation
Fuel and lubricant
CAUTION
Whenever opening up the fuel tank, always loosen the cap very slowly and wait for
the tank pressure to be equalized before removing the cap.
Fuel is a mixture of re gular grade petrol and an air-cooled 2-stroke e ngine oil of reputabl e
brand name.
Minimum 89 Octane unlead ed petrol is recommended.
Do not use fuel containing methyl alcohol or more than 10 % of ethyl alcohol.
Recommended mi xture ra tio; 50 : 1 (2 %) for ISO-L-EGD Sta ndard (ISO/CD1373 8), JASO
FC, FD grade and ECHO Premium 50 : 1 oil.
- Do not mix directly in engine fuel tank.
- Avoid spilling petrol or oil.
Spilled fuel should always be wiped up.
- Handle petrol with care, it is highly inflamma ble.
- Always store fuel in approved container.
Chain lubricant
Proper lubrication of the chain while in operation reduces the friction between the chain and
the guide bar to a minimum and assures a longer life time.
Use only special chain oil of high quality for this purpose.
Do not use any waste or reclaimed oil to avoid various problems with the oil pump.
In case of emergency, it is allowed to use motor oil for a short time.
SAE 30...in summer
SAE 10...in winter or for the cutting of wood with a high resin content
12
Starting the cold engine
WARNING
After choke control knob is pulled and then knob is returned to origina l position,
throttle remains a little open (latch condition).
If engine is started in this latch condition, chain starts to turn.
Do not start engine before chain brake is activated.
CAUTION
1. After starting the engine, immediately squeeze and release thr ottle trigger for
disengaging throttle latch and re turning engine to idle, a nd pull front h and guar d
towards the operator immediately. (Chain brake RELEASED position)
2. Do not increase engine speed while chain brake is engaged.
3. Use the chain brake only in starting the engine or in emergencies.
4. Never use throttle latch for cutting.
Use it only when starting the engine.
NOTE
Do not pull starter rope out to the maximum position.
Do not allow starter handle to snap back against the casing.
A: Starter handle
1. Chain brake ACTIVATED position
2. Ignition switch (Run)
3. Decompression device
4. Choke control knob (Close)
5. Choke control knob (Open)
Fill the fuel tank with fuel mixture.
It is not permitted to fill fuel above the shoulder level of fuel tank.
Fill the chain oil tank with lubricant.
Press hand guard forward.
(Chain brake ACTIVATED position)
Lift ignition switch up.
Press the dec ompression de vice.
Pull choke control knob all the way out.
Securely hold the chain saw.
Make sure guide bar and saw chain are not touching anything when strarting the saw.
Pull starter handle several times until first firing sound is heard.
Push choke control knob all the way in.
Press the decompression device and pull starter handle again.
13
Starting the warm engine
1. Chain brake ACTIVATED position
Confirm there is fuel and chain oi l in the tanks.
Press hand guard forward.
(Chain brake ACTIVATED position)
Lift ignition switch up.
Press the dec ompression de vice.
Securely hold the chain saw.
Pull starter handle.
Choke may be used if nec es sar y, bu t after first firing sound pull throttle trigger a little to
release throttle latch and choke.
After choke control knob is pull ed and then knob is returned to orig ina l position, throttle
remains a little open (latch condition).
Running
1. Chain brake RELEASED position
2. Throttle trigger lockout
3. Throttle trigger
4. Manual oiler button
After engine starts, allow it to idle for a few minutes.
Pull front hand guard towards the operator immediately.
(Chain brake RELEASED position)
Squeeze throttle trigger gradually to increase engine revolution.
The chain starts moving when the engine reaches 3800 r/min approximately.
Ensure proper acceleration and lubrication of saw chain and guide bar.
Give several strokes to manual oiler button and comfirm function, too.
Do not run the engine at high speed unnecessarily.
Be sure that saw chain stops moving when throttle trigger is released.
14
Stopping the engine
NOTE
If engine does not stop, pull choke control knob all the way out to stop engine.
Return the unit to your authorized ECHO dealer to check and repair ignition switch before
starting the engine again.
1. Throttle trigger
2. Ignition switch
Release throttle trigger and allow engine to idle.
Push ignition switch down.
Checking chain tension
WARNING
Make sure that the engine is shut off when checking chain tension.
NOTE
Always loosen clutch cover nuts before turning the chain tension adjuster, otherwise the
clutch cover and tensioner will be damaged.
Chain tension should be checked frequently during work and corrected if necessary.
Tension the chain as tight as possible, but so it can still be pulled easily along the bar by
hand.
Chain lubrication test
Hold the chain just above a dry surface and open the throttle to half speed for 30
seconds.
A thin line of "thrown" oil should be seen on the dry surface.
Pre cutting test
Familiarize yourself with your chain saw before you start actual cutting.
For this purpose it may be wise to practice by cutting some small logs or limbs several
times.
Do not allow either people or animals into the work area.
Multiple operators - Keep a safe distance between two or more operators when working
together simultaneo usly.
15
Correct use of chain brake
DANGER
Kickback motion is very hazardous.
If the tip of the bar touches wood or the like, the guide bar kicks back in an instant.
The chain brake reduces the possibility of injury due to kickback.
Always check that chain brake works properly before use.
NOTE
For practice, while cutting a small tree, push the front guard forward to engage the
brake.
At all times, confirm whether the brake works properly before each task.
If the chain brake is clogged with wood chips, function of the brake deteriorates a little.
Always keep the device clean.
Do not increase engine revolutions while the chain brake is engaged.
Chain brake is used in emergencies.
Do not use it unless absolutely necessary.
When using throttle latch at starting, keep the chain brake in position.
And after starting the engine, release the brake immediately.
Never test the brake in an area where petrol fumes are present.
Chain brake
The chain brake's function is to stop chain rotation after a kickback.
It neither prevents nor reduces kickback.
Do not depend on the chain brake for protection against kickback.
Even with a chain brake, depen d on your own go od sens e and pr oper cut ting met hods ju st as
though there were no chain brake.
Even with normal use and p roper mai ntenan ce, the re sp onse time o f the b rake ma y lengt hen.
The following may interfere with the brak e's ability to protect the operator:
Saw wrongly held too close to operator's body.
Kickback time may be too fast even for a perfectly maintained brake to work in time.
The operator's hand may not be in position to contact the hand guard.
Brake will not be tripped.
Lack of proper maintenance lengthens the brake's stopping time, making it less effective.
Dirt, grease, oil, pitch, etc. getting into the working parts of the mechanism may lengthen
the stopping time.
Wear and fatigue of the activating brake spring, and wear of the brake / clutch drum and
pivot points may lengthen the brake's stopping time.
A damaged hand guard and lever may render the brake inoperative.
16
Checking the brake function of the brake
1. Place the chain saw on the ground.
2. Hold the handle with both hands and accelerate the engine to high speed by using the
throttle trigger.
3. Operate the chain brake by turning your left wrist against the front hand guard whilst
gripping the front handle.
4. The chain stop immediately.
5. Release the throttle trigger.
If the chain does not stop immediately, take the saw to your ECHO dealer to repair.
Release the chain brake
When front hand guard is fully pulled towards the operator, chain brake is released.
Non-manual chain brake
IMPORTANT
When checking the operation of the n on- ma nual chain brake, use a s oft surface substance
like wood to provide the impact so the saw chain is not damaged.
1). End of the guide bar may be placed at the height about 35 cm.
2). Rear handle should be gripped lightly with the right handle.
The non-manual chain brake stops the operation of the saw chain in such a manner that the
kickback action produced at the end of the guide bar non-manually actuates the chain brake.
To make sure that the non-manual chain brake operates properly, proceed as follows:
1. Stop the engine of the chain saw.
2. Operate the front and rear handles with hands (grip them lightly), so that the guide bar
may be placed at the height of about 35 cm as shown in Fig.
3. Softly detach the left hand from the front handle, and touch the end of the guide bar
against the wood or the like placed below so that the machine receives an impact.
(* at this time the rear handle should be gripped lightly with right hand)
4. The impact is transferred to the brake lever, which actuates the chain brake.
17
Cutting instruction
DANGER
Do not let the nose or tip of the guide bar touch anything while engine is running to
avoid kick back.
General
In all circumstances the operation of the chain saw is a one-man job.
It is difficult at times to take care of your own safety, so don't assume the responsibility for a
helper as well.
After you have learned the basic techniques of using the saw, your best aid will be your own
good common sense.
The accepted way to hold the saw is to stand to the left of the saw with your left hand on the
front handle so you can operate the throttle trigger with your right index finger.
Before attempting to fell a tree, cut some small logs or limbs.
Be thoroughly familiar with the controls and the responses of the saw.
Start the engine, see that is running properly.
Squeeze the trigger to open the throttle wide open, then start the cut.
It is not necessary to press down har d to make the sa w cut.
If the chain is properly sharpened, the cutting should be relatively effortless.
Pushing the saw too hard will slow the engine and cutting will actually be more difficult.
Some material may adversely affect the housing of your chain saw.
(Example: palm tree acid, fertilizer etc.)
To avoid housing deterioration carefully remove all packed saw dust around clutch and guide
bar area and wash with water.
18
Felling a tree
A falling tree can seriously damage anything it may hit - a car, a house, a fence, a power-line
or another tree.
There are ways to make a tree fall where you want it, so first decide where that is!
Before cutting, clear the area around the tree.
You will need good footing while working and you should be able to work the saw without
hitting any obstacles.
Next select a path of retreat.
When the tree begins to fall you should retreat away from the direction of fall at a 45-degree
angle and at least 3 m from the trunk to avoid the trunk kicking back over the stump.
Begin the cut on the side to which the tree is to fall.
o
Notch: 1/3 of diameter and 30
Backcut: 2.5 to 5 cm higher
Uncut hinge wood: 1/10 of diameter
Cut a notch approximately 1/3 of the way into the tree.
The position of this notch is important since the tree will try to fall "into" the notch.
The felling cut is made on the side opposite the notch.
Make the felling cut by placing spiked bumper 2.5 cm to 5 cm above the bottom of the notch
and stop cutting at approximately 1/10 of diameter to the inner edge of the notch in order to
leave the uncut portion of the wood as a hinge.
1. Notch cuts
2. Backcut
3. Wedges (when room)
4. Fall
A: Leave 1/10 of diameter hinge
Do not try to cut through to the notch with the felling cut.
The remaining wood between the notch cut and felling cut will act as a hinge when the tree
falls, guiding it in the desired direction.
When the tree starts to fall, stop the engine, pla ce the saw on t he ground and m ake your retrea t
quickly.
to 45o angle
Fell big tree.
1. Notching cuts
2. Draw-across method
3. Back cut
4. Draw-across method
5. Felling cuts
A: Wedges
To fell big trees with a diameter exceeding twice the bar length, start the notching cuts from
one side and draw the saw through to the other side of the notch.
Start the back cut on one side of the tree with the spiked bumper engaged, pivoting the saw
through to form the desired hinge on that side.
Then remove the saw for the second cut.
Insert the saw in the first cut very carefully so as not to cause kickback.
The final cut is made by drawing the saw forward in the cut to reach the hinge.
19
Limbing
CAUTION
Don't saw above chest height.
Limbing a fallen tree is much the same as bucking.
Never remove a limb from a tree while it is supporting your weight.
Be careful of the tip touching other limbs.
Always use both hands.
Don't cut with the saw overhead or the bar in a vertical position.
If the saw should kickback, you may not have good enough cont rol to pre ve nt pos s ibl e inj ury .
Know how limb is stressed
1. Leave supporting limbs till last.
2. Slide support logs under trunk.
Bucking
CAUTION
Stay on the uphill side of logs.
Bucking is the sawing of a log or fallen tree into smaller pieces.
There are a few basic rules which apply to all bucking operations.
Keep both hands on the handles at all times.
Support logs if possible.
When cutting on a slope or hillside, always stand uphill.
No standing on log.
20
Tension and compression in timber
WARNING
Never use throttle latch for cutting jobs.
CAUTION
If you have misjudged the effects of tension and compr ession, and cut from the wrong
side, the timber will pinch the guide bar and chain, trapping it.
Racing the engine with the chain jammed will burn out your clutch.
If the chain should becom e jamme d and the sa w can not be r emov ed from the c ut do
not force it out.
Stop the saw, force a wedge into the cut to open it up.
Never force the saw when it is jammed.
Do not force the saw into the cut.
A dull chain is unsafe and will cause excessive wear to the cutting attachments.
A good way to tell when the cha in is dull is when fine saw dust c ome s o ut ins tead of
chips.
1. Hinge
2. Opened
3. Closed
A length of timber lying on the ground will be subject to tension and compression, depending
at which points the major support is.
When timber is supported at its ends the compression side is at the top and the tension side
is at the bottom.
To cut between these support points, make the first cut downwards approximately 1/3rd the
timber diameter.
The second cut is made upwards and should meet the first cut.
Heavy stress
4. 1/3 diameter. To avoid split.
5. Weakening cut to finish.
When the timber i s su pported at one end o nly, make the f irst cut upwards appro xima tely 1 /3rd
the timber diameter.
The second cut is made downwards and should meet the first cut.
Overbuck
6. Down
7. Unsupported end
Underbuck
8. Up
9. Wedge
Make angled cut when one section may settle against the other.
21
Service maintenance guide
Area Maintenance Page Before use Monthly
Air filter Clean / Replace 26 •
Fuel system Inspect 26 •
Fuel filter Inspect / Clean / Replace 26 •
Oil filter Inspect / Clean / Replace 26 •
Spark plug Inspect / Clean / Adjust / Replace 26 •
Cooling system Inspect / Clean 27 •
Guide bar Inspect / Clean 27 •
Sprocket Inspect / Replace 27 •
Carburettor Adjust / Replace and adjust 27 •
Silencer Inspect / Tighten / Clean - •O
Chain brake Inspect / Replace 16 •O
Starter rope Inspect - •
Screws, bolts and nuts Inspect, Tighten / Replace - •O
WARNING
If not maintained properly, the product may pose a serious risk to physical health.
CAUTION
Before and after using the product, ch eck the antivibration rub ber or spring for making s ure that it is not worn, cracke d,
or deformed.
NOTE
If not maintained properly, the product's performance may deteriorate.
IMPORTANT
Time interv als shown are maximum.
Actual use and your experience will determine the frequency of required maintenance.
22
Trouble
Engine - hard to start
- does not start
Troubleshooting
Cause Remedy
Engine
cranks
Engine
does not
crank
Engine runs Dies or accelerates poorly Air filter dirty
Fuel at carburettor Not fuel at carburettor Fuel filter clogged
Fuel line clogged
Carburettor
Fuel at cylinder No fuel at cylinder Carburettor Ask your ECHO dealer
Silencer wet with fuel Fuel mixture is too rich Open choke
Spark at end of
plug wire
Spark at plug No spark at plug Spark gap incorrect
No spark at end of plug
wire
Ignition switch off
Electrical problem
Covered with carbon
Fouled with fuel
Spark plug defective
Internal engine problem Ask your ECHO dealer
Fuel filter dirty
Fuel vent plugged
Spark plug
Carburettor
Cooling system plu gged
Exhaust port / si le ncer p lugged
Clean or replace
Clean
Ask your ECHO dealer
Clean / replace air filter
Adjust carburettor
Ask your ECHO dealer
Turn switch on
Ask your ECHO dealer
Adjust 0.6 to 0.7 mm
Clean or replace
Clean or replace
Replace plug
Clean or replace
Clean or replace
Clean
Clean and adjust / replace
Adjust
Clean
Clean
WARNING
All chain saw service operations, other than items listed in the Operator's Manual, should be performed by
competent service personnel .
Fuel vapors are extremely flammable and may cause fire and / or explosion.
Never test for ignition sp ark by grounding spark plug ne ar cylinder plu g hole, otherwise serious perso nal injury may
result.
23
Saw chain maintenance
WARNING
Switch off the engine before sharpening the chain.
Always wear gloves when working on chain.
CAUTION
The following faults will increase the risk of kickback considerably.
1) Top plate angle too large
2) File diameter too small
3) Depth gauge too large
NOTE
These angles are referred to as Oregon 73LGX and Carlton A2LM saw chains.
For other branded saw chain, follow it's chain manufacturer's instruction.
Properly filed cutters are shown below.
A: Top plate angle A2LM; 30°, 73LGX; 25°
B: Top plate cutting angle A2LM; 60°, 73LGX; 55°
C: Depth gauge A2LM; 0.71 mm, 73LGX; 0.65 mm
D: Parallel
1. Left hand cutter
2. Tie strap
3. Right hand cutter
4. Depth gauge
5. Drive link
6. Rivet
Never operate a chain saw with a dull or damaged chain.
If the chain requires excessive pressure to cut or produces dust instead of wood chips then
inspect the cutters for damage.
When sharpening the chain the objective will be to maintain the same angles and profiles
throughout its life as when it was new.
Inspect th e chain for damage or wear every time yo u refuel your chain saw.
24
Sharpening
In order to file the chain correctly you need: round file and file holder, flat file and a depth
gauge tool.
By using the correct file size (5.5 mm Round file) and a file holder, it is easier to receive a
good result.
Consult your ECHO dealer for correct sharpening tools and sizes.
1. Lock the chain - push the front hand guard forward.
To rotate the chain - pull the front hand guard against front handle.
2. Your chain will have alternative left and right hand cutters.
Always sharpen from the inside out.
3. Keep the angle lines of the file holder parallel to the line of the chain and file the cutter
back until the damaged area (side plate and top plate) has been removed.
4. Hold the file tipped 10° upward.
5. Avoid touching the tie straps with the file.
6. Sharpen the most dama ged cutter first and th en take all the ot her cutters back to the same
length.
7. The depth control determines the thickness of wood chip produced and must be
maintained correctly throughout the chain life.
8. As the cutter length is reduced, the depth control height is altered and must be reduced.
9. Position the depth gauge, and file off any of the depth control which protrudes.
10. Round off the front of the depth control to allow smooth cutting.
11. Drive link serves to remove sawdust from the groove of the guide bar.
Therefore, keep the lower edge of the drive link sharp.
When setting of the chain is finished, soak it in oil and wash away filings completely before
using.
When the chain has been fi led on the ba r, suppl y suffic ient oi l to it, and rotate the cha in sl owly
to wash away the filings before using again.
If the chain saw is operate d with filing s clogged in the groove , the saw c hain and the guide bar
will be damaged prematurely.
If the saw chain b ecomes soil ed with res in for inst ance, clean it with kero sene and soak it in o il.
25
Service
If you have any questions or problems, please contact your ECHO dealer.
Air filter
1. Cleaner cover latch
2. Air cleaner cover
3. Air filter cover
4. Air filter
5. Spark plug
Check before every use.
Close choke.
Release the cleaner cover latch, and remove the air cleaner cover and the air filter.
Brush off dust lightly, or clean with compressed air, or replace the air filter.
Reinstall the air filter and cover, engage latch.
Check fuel system
Check before every use.
After refuelling, make s ure fuel do es not lea k or exude from aroun d fuel pipe, fue l gromme t
or fuel tank cap.
In case of fuel leakage or exudation there is a danger of fire.
Stop using he machine immediately and request your dealer to inspect or replace.
Fuel filter
DANGER
Petrol and fuel are extremely flammable.
Extreme caution is required when handling petrol or fuel.
1. Fuel filter
2. Fuel tank cap
Check periodically.
- Do not allow dust to enter fuel tank.
- A clogged filter will cause difficulty in starting engine or abnormalities in engine
performance.
- Pick up the fuel filter through fuel inlet port with a piece of steel wire or the like.
- When the filter is dirty, replace it.
- When the inside of the fuel tank is dirty, it can be cleaned by rinsing the tank out with
petrol.
Oil filter
1. Oil filter
2. Oil tank cap
Check periodically.
- Do not allow dust to enter oil tank.
- A clogged oil filter will affect the normal lubricating system.
- Pick it up through oil filling hole with a piece of steel wire or the like.
- If the filter is dirty, wash it in petrol or replace it.
- When the inside of the oil tank gets dirty, it can be cleaned by rinsing the tank out with
petrol.
Spark plug
∗ Spark plug gap: 0.6 to 0.7 mm
Check periodically.
- The standard spark gap is 0.6 to 0.7 mm.
- Correct the spark gap if it is wider or narrower than the standard gap.
Fastening torque: 15 to 17 N•m (150 to 170 kgf•cm)
26
Cylinder fins (Cooling system)
Check periodically.
Clogged fins will result in poor engine cooling.
Remove dirt and dust from between fins to let cooling air pass easily.
Guide bar
NOTE
When replacing guide bar or saw chain, ask your ECHO dealer.
1. Groove 2. Oil hole 3. Guide bar 4. Sprocket
Clean before using.
- Clean the groove of the guide bar with a small screw driver, for example.
- Clean oil holes with a wire.
Reverse guide bar periodically.
Check sprocket and the clutch and clean the bar mou nt area be fore install ation of the guide
bar.
Replace either or both if worn.
Sprocket
∗ Worn out: 0.5 mm
The damaged sprocket will cause premature damage or wear of saw chain.
- When the sprocket has worn out 0.5 mm or more, replace it.
Check sprocket when you install new chain.
Replace it if worn.
Carburettor
CAUTION
When starting, idle speed adjuster (T ) should be adjusted not to rotate the saw chain.
When there is some trouble with the carburettor, contact your dealer.
L: Low speed mixture adjuster
H: High speed mixture adjuster
T: Idle speed adjuster
Do not adjust the carburettor unless necessary.
To adjust the carburettor proceed as follows:
- Turn the low speed mixture adjuster (L) and high speed mixture adjuster (H)
anticlockwise to stop.
- Start engine and allow it to run at high idle until warm.
- Turn the idle speed adjuster (T) anticlockwise until the saw chain stops moving.
- Turn idle speed adjuster (T) anticlockwise an additional 1/2 turn.
- Accelerate to full throttle to check for smooth transition from idle to full throttle.
Automatic oiler
1. Oil adjusting knob 2. Decrease 3. Increase
The discharge volume of the automatic oiler is adjusted to 8 mL/min approximately at
7000 r/min, prior to shipment from factory.
- To increase the delivery volume, turn the adjusting knob clockwise.
When the adjusting knob touches stopper and stops, this position indicates maximum
discharge volume. (15 mL/min at 7000 r/min)
- Do not turn the adjusting knob beyond the maximum or minimum limit of volume
adjustment.
27
Replacement guide bar and chain
Length
Guide bar Chain
cm (Part number) (Part number)
45 45RS58T-3/8EEC 73LGX-64
60 60RS58T-3/8EEC 73LGX-84
Sprocket rim Clutch drum
3/8-7 31568
(175033-14731)
(175105-32431)50 50RS58T-3/8EEC 73LGX-72
28
Storage
Long term storage (Over 30 days)
WARNING
Do not store in an enclosure where fuel fumes may accumulate or reach an open
flame or spark.
NOTE
For future reference, you should keep this operator's manual.
Do not store your unit for a prolonged period of time (30 days of longer) without performing
protective storage maintenance which includes the following:
1. Drain the fuel tank completely and pull the recoil starter handle several times to remove
fuel from the carburettor.
2. Always store fuel in approved container.
3. Place the ignition switch in the "STOP" position.
4. Remove accumulation of grease, oil, dirt and debris from exterior of unit.
5. Perform all periodic lubrication and services that are required.
6. Tighten all the screws, bolts and nuts.
7. Remove the spark plug and pour 10 mL of fresh, clean, two-stroke engine oil into the
cylinder through the spark plug hole.
A. Place a clean cloth over the spark plug hole.
B. Pull the recoil starter handle 2 or 3 times to distribute the oil inside the cylinder.
C. Observe the piston location through the spark plug hole.
Pull the recoil starter han dle slowly unti l the piston reac hes the top of its trav el and leave
it there.
8. Install the spark plug (Do not connect ignition cable).
9. Cover the chain and the guide ba r with the guide bar cover bef ore putting them in stor age.
10. Store unit in a dry, dust free place, out of the reach of children and other unauthorized
persons.
29
Disposal procedure
Dispose of waste oil in accordance with local regulations.
Major plastic parts making up the product have codes showing their materials.
The codes refer t o the followin g materials ; dispose o f those pla stic parts in a ccordance with
local regulations.
Mark Material
>PA6-GF< Nylon 6 - Glass fibre
>PP-GF< Polypropylene - Glass fibre
>PE-HD< Polyethylene
Please contact your ECHO dealer in case you do not know how you should dispose of
waste oil / plastic par ts.
30
Specifications
Model
External dimensions: Length × Width × Height mm 435 × 236 × 302
Mass: Saw without guide bar and chain, empty tanks kg 6.6
Volume:
Fuel tank
Tank for chain lubrication oil
Fuel (Mixture ratio)
Oil (Chain oil)
Cutting length:
All specified usable cutting lengths of guide bar mm 450, 500, 600
Chain:
Specified pitch
Specified gauge (thickness of drive links)
Type of guide bar
Guide bar gauge
Type of chain
Chain speed
at 1.33 times the maximum engine power speed
Lubrication
mL
mL
mm
mm
cm
mm
m/s
640
370
Regular grade petrol.
Minimum 89 Octane unleaded petrol is recommended.
Do not use fuel containing methyl alcohol or more than
10 % of ethyl alcohol.
50 : 1 (2 %) for ISO-L-EGD Standard (ISO/CD13738),
JASO FC, FD grade and ECHO Premium 50 : 1 oil.
Special chain oil or motor oil
9.53 (3/8 inch)
1.47 (0.058 inch)
45, 50, 60 (ECHO)
1.47 (0.058 inch)
Carlton A2LM
Oregon 73LGX
28.1
Adjustable automatic oil pump and manual pump
Sprocket: Specified number of teeth 7
Engine:
Type
Carburettor
Magneto
Spark plug
Starter
Power transmis sion
Decompression device
Engine dis placement
Maximum shaft brake power (ISO 7293)
Recommended maximum speed with cutting attachment
Recommended speed at idling
Sound pressure level: (ISO 22868) Lp
Aeq
=
Uncertainty
Guaranteed sound power level: (2000/14/EC) L
Vibration: (ISO 22867) Declared values a
WAav
hveq
Front handle
Rear handle
Uncertainty
mL (cm
kW
r/min
r/min
dB(A)
dB(A)
= dB(A) 118
m/s
m/s
m/s
Air cooled 2-stroke single cylinder
Diaphragm type
Flywheel magneto, CDI system
NGK BPMR7A
Recoil starter
Automatic centrifugal clutch
With
3
)
66.8
3.26
13500
2800 (2200 - 2900)
112.9
1.5
2
6.4
2
6.3
2
1.3
Other devices: Front hand guard, Rear hand guard,
Throttle trigger lockout, Chain catc her ,
Chain brake, Anti-vibration device, Spiked bumper
31
Declaration of conformity
The undersigned manufacturer:
YAMABIKO CORPORATION
7-2 SUEHIROCHO 1-CHOME
OHME ; TOKYO 198-8760
JAPAN
declares that the hereunder specified new unit:
PORTABLE CHAIN SAW
Brand: ECHO
Type:
complies with:
* the requirements of Machinery Directive 2006/42/EC
(use of harm onized stand ard ISO 11681-1 (2011))
and has been granted "CE Type Approval"
Certificate No.: TI(E)/MD(2) - ECTE/184/30052013
Technical File Reference: TCF 1-66-1
by the hereunder listed notified body:
Technology International (Europe) Limited
56 Shrivenham Hundred Business Park
Shrivenham, Swindon, SN6 8TY, United Kingdom
* the requirements of Directive 2004/108/EC
(use of harm onized stand ard EN ISO 14982)
* the requirements of Directive 2010/26/EU
* the requirements of Directive 2000/14/EC
Conformity assessment procedure followed ANNEX V
Measured sound power level: 115 dB(A)
Guaranteed sound power level: 118 dB(A)
Serial Number 36005001 and up
Tokyo,
November 1st 2013
YAMABIKO CORPORATION
The authoriz ed re pr e sen tat i ve in Eu rop e wh o i s a uth or ized t o
compile the technica l file:
Company: Atlantic Bridge Limited
Address: Atlantic House, PO Box 4800, Earley,
Reading RG5 4GB, United Kingdom
Y. Katsumata General Manager Mr. Philip Wicks
32
1Memorandum and back cover
Memorandum
2008
X750 - 012 24 3
X750 316-530 3
33
7-2 SUEHIROCHO 1-CHOME, OHME, TOKYO 198-8760, JAPAN
PHONE: 81-428-32-6118. FAX: 81-428-32-6145.
©
2008
X750 - 012 24 3
X750 316-530 3
Printed in Japan
34
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