Echo GT-22G, GT-22GES Operator's Manual

1Top cover

ENGLISH

OPERATOR'S MANUAL

GRASS TRIMMER

WARNING

Read the instructions carefully and follow the rules for safe
operation.
Failure to do so could result in serious injury.

Introduction

2Introduction

ECHO Grass trimmers are lightweight, high-performance, petrol engined units designed for weed control and grass trimming in
areas difficult to control by any other means.

Loop handle version of and are designed for occasional user.
Do not use t his unit for any purpose other than aforementioned.
Never let children operate this unit.

This Manual provides the information necessary for assembly, operation and maintenance of your ECHO grass trimmer.
You must read this Manual to understand the safe and effective operation of your ECHO product.
For future reference, you should keep this Operator's Manual.
If this Operator's Manual has be come illegible through im pai rme nt or is los t, ple as e purc ha se 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.

If there is any clause in this Manual that is hard to be understood, please contact your ECHO dealer.

Feature of this model: " " START
" " START generates enough revolving power to rotate crankshaft up to a speed to ignite the engine and bring almost no

kickback.
" " START makes engine start far easier than you ever expect.

2

Contents

Decals and symbols............................................................................................................4

Rules for safe operation .. ....... ...... ....... ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ....... ...... ...5

Training..........................................................................................................................5

Eye protection................................................................................................................ 5

Hearing and ear protection ............................................................................................5

Protective clothing .........................................................................................................5

Foot and leg protection..... ...... ....... ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ....... ...... ...5

Additional protection ............................ ....... ............................................. ...... ....... ...... ...5

Fuel................................................................................................................................6

Physical condition..........................................................................................................6

Area and equipment inspection.....................................................................................6

General operation..........................................................................................................7

Vibration and cold...... ....... ...... ....... ...... ....... ...... ....... ...... ...... .......................................... 9

Repetitive stress injuries................................................................................................9

Rules for safe operation with nylon line cutting head .......................................................10

Use correct cutting attachment....................................................................................10

Description........................................................................................................................12

Assembling .......................................................................................................................13

Front (loop) handle installation ....................................................................................13

Plastic shield installation..............................................................................................13

Nylon line head installation..........................................................................................13

Nylon line head............................................................................................................13

Adjusting nylon line......................................................................................................13

Replacing nylon line.....................................................................................................14

Fuel...................................................................................................................................15

Fuel..............................................................................................................................15

Handling fuel . ....... ...... ....... ...... ....... ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ....... ...... .15

Operation..........................................................................................................................16

Starting the cold engine...............................................................................................16

Starting the warm engine.............................................................................................16

Stopping the engine............................. ....... ...... ....... ...... ...... ....... ...... ....... ...... ....... ...... .16

Service maintenance guide ..............................................................................................17

Troubleshooting................................................................................................................18

Maintenance and care ................. ....... ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ..............19

Cleaning air filter.................................. ............................................. ....... ...... ....... ...... .19

Check fuel system .......................................................................................................19

Replacing fuel filter ......................................................................................................19

Check spark plug.........................................................................................................19

Cooling system maintenance.......................................................................................19

Carburettor adjustment................................................................................................20

Cleaning silencer........................................ ...... ....... ...... ...... ....... ...... ...........................20

Lubricating drive shaft (flexible shaft)..........................................................................20

Checking the nylon line head.......................................................................................20

Storage .............................................................................................................................21

Long term storage (Over 30 days)...............................................................................21

Disposal procedure...........................................................................................................22

Specifications....................................................................................................................23

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 Warning, side thrust

Wear eyes, ears and head protection The maximum speed of the cutting

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 nan ce of the
unit.

"CAUTION" indicates a potentiall y
hazardous situation which, if not
avoided, may result in minor or
moderate injury.

attachment shaft in r/min

Wear foot protection and gloves Keep bystanders away 15 m

Emergency stop Petrol and oil mixture

Warning!
Thrown objects!

Usage without shield not permitted Carburettor adjustment

Usage of metal blades not permitted Carburettor adjustment

Usage of nylon line cutting head not
permitted

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.

Carburettor adjustment

- Low speed mixture

- High speed mixture

- Idle speed

Part number X505-000140

4

Rules for safe operation

Training

WARNING

Grass trimmers can throw small gravel, stone, glass, metal or plastic objects as well
as the material being cut.
Read these "Rules for safe operation" with care.
Follow instructions in the Operator's Manual.

Do not permit operation without proper training and protective equipment.

 Read the Operator's Manual carefully.

Be thoroughly familiar with the controls and proper use of the unit.
Know how to stop the unit and shut off the engine.
Never allow anyone to use the unit without proper instruction.

 If you have any questions or problems, please contact your ECHO dealer.

Eye protection

The operator must wear eye protection not only against objects thrown by the unit, but also
because eye infections can be caused by airborne dust, seeds and pollen.
Prescription glasses may be worn under the safety goggles.
Eye protection should also be worn by persons in the risk zone which extends beyond the
danger zone.

Hearing and ear protection

Prolonged exposure to loud noise can cause impairment or loss of hearing.
Wear a suitable hearing protective device such as earmuffs or earplugs to protect against
objectionable or uncomfortable loud noises.

Protective clothing

Choose trousers, shirts and jackets that fit trimly and have no strings, frills or dangling straps
which could catch on the unit or the underbrush.
Do not wear ties, loose clothing or jewellery.
Keep clothing buttoned or zipped up and shirttails tucked in.
Secure hair so it is above shoulder length.
The wearing of glo ves offe rs some prote ction ag ainst contact wi th skin irritants s uch as poi son
ivy.
Soft leather work gloves may also improve your grip.

Foot and leg protection

Long trousers and st urdy shoes with non -slip soles are generally acc eptable protection a gainst
objects thrown by a grass trimmer head.

Additional protection

WARNING

In addition to head, ey e and e ar prote ction w ear pro tective clothes, saf ety glove s and
shoes to protect your feet and body from thrown objects, and improve your footing
on slippery surfaces.
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.
In certain situations, total face and head protection may be required.

1. Hearing protectors. 2. Safety goggles. 3. Trim-fitting clothes.

4. Safety gloves. 5. Sturdy shoes or boots. 6. Long trousers.

Hay fever (Rhinitis) sufferers may wear disposable masks to help reducing the intake of
allergenic particles.

5

Fuel




Handle fuel with care.
It is highl y flammable.
a)Use an appropriate type of fuel container.
b)Do not smoke or bring flame or sparks near to fuel supplies.
c) The fuel tank may be under pressure.

Always loosen the fuel cap and wait for pressure to be equalized before removing the cap.

d)Fill the fuel tank outdoors over bare ground and install the fuel cap securely.

Do not pour fuel indoors.

e)Wipe any spilled fuel off the unit.

Then move at least 3 m from the fuelling spot before starting the engine.
f) Never refuel while the engine is still hot, or fuel a running engine.
g)Do not store the unit with fuel in its tank, because a fuel leak could start a fire.

Physical condition

 You should be in good mental and physical health.

Do not operate if you are under the influence of alcohol or any medication or substance

which could affect your vision, dexterity or judgement.

 For your own health and your safe and comfortable work, operate the machine within the

air temperature range of -5ºC to 40ºC.

Area and equipment inspection

WARNING

Improper fit will result fly off the cutting attachment.
Never start the engine if the pow er transmission s haft is not in place to prevent the
engine from over speeding or the clutch from flying apart.

Inspect the area before using the unit.
Remove objects the unit could throw.
Remember where there are obstructions to be avoided.

Inspect the unit before using it.
Perform only maintenance or adjustments for which the Operator's Manual gives instruction.
Do not try to repair the unit without proper instruction.
The unit should be serviced only by trained ECHO dealer servicemen with the proper tools.

Be sure that:
a)Engine does not leak fuel.

b)Fasteners are tight, and none are missing.
c) Silencer is in good condition.
d)The unit has the proper equipment-shield, handles, etc.-for the cutting attachment to be

used.

e)If used on the unit, the cutting attachment is properly tightened.

6

General operation

WARNING

Eye protection should be considered for everyone in the zone of risk.
Risk of eye injury diminishes with distance.

Do not run the engine indoors, or where there is poor ventilation.

Engine fumes contain deadly poisonous carbon monoxid e.
Do not operate with a worn or damaged cutting attachment.
Do not run engine at full throttle without a load.
Do not hit rocks, stones, tree stumps, and other foreign objects with the cutting attachment.
If cutting attachment strikes an obstruction, stop engine immediately and inspect cutting
attachment for damage.

Start on ground with cutting attachment in the clear.

Lay the unit down on a clear area and set the controls for starting.
Be sure the cutting attachment cannot contact the ground or any obstruction.
Hold the unit firmly down so you will not lose control during starting.
Do not start the unit in the air.
The unit could swing into your leg or an obstruction if you lose control.

Do not raise the cutting attachment above knee height.
If raised higher, the cutting attachment will be more directly in line with your face.
Thrown objects may hit your face and eyes.

Wear the recommended foot, leg, head, eye and hearing protection at all times during
operation.
Also assess the job to be done, and whether other types of protection may be necessary.

Never operate the unit without the proper guards and other protective devices.
Never operate the unit without good visibility and light.

Do not allow anyone to enter the operating danger zone with you.
The danger zone is an area of 15 m in radius.

Insist that persons in the risk zone beyond the danger zone wear eye protection to protect
them from thrown objects.
If the unit must be used where there are unprotected people, operate at a low throttle speed
to reduce the risk.

Ensure that there are no children, bystanders, and pets in the work area.
Keep all children, bystanders and fellow workers outside 15 m radius for grass trimmers.

7

Stop the engine before leaving t he machi ne, child ren are not al lowed to use the mac hine, stop
the machine between different working places.

If you are approached, stop the engine and cutting attachment immediately.
Keep your hands and body away from silencer to prevent heat injury while the engine is hot.

Sudden vibration?
Shut down immediately!

Shut down immediately if the unit starts to shake or vibrate.
A sudden vibratio n is a sign there may b e dangerous trouble, suc h as a bro ken flywh eel, clutch
or cutting attachment, or loose parts.
Do not use the unit until the problem has been properly diagnosed and corrected.

Keep feet and hands away until rotation stops.

When the unit is tur ned off, make sure the cut ting attachm ent stops be fore the unit i s set down.
If the cutting attachment rotates after throttle is returned to idle, carburettor adjustment is
required.
Follow instruction on this Manual to make the adjustment yourself, or have the carburettor
adjusted by your ECHO dealer.

All maintenance and adjustments given in this Manual should be performed by you or your
ECHO servicing dealer on a timely basis.

All required service or repair must be done only by ECHO servicing dealer.
Never attempt to use an incomplete or one fitted with unauthorized modification.

Do not operate one-handed.

Always use both hands on the handles.

Always hold the unit with the fingers and thumbs encircling the handles.

8

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.
Exposure to cold and vibration may cause tingling and burning followed by loss of colour and
numbness in the fingers.

The following precautions are strongly recommended 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 circulation by performin g vigorous arm exercises du ring 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 trimmer or other hand-held power

equipment is not required.

 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

Painful or numb fingers?
See your doctor immediately!

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.
Certain repetitive hand activities may put you at a high risk for developing a repetitive stress
injury (RSI).

To reduce the risk of repetitive stress injury, 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 the han d and arm muscles.
 See a doctor if you feel tingling, numbness or pain in the fingers, hands, wrists or arms.

The sooner RSI is d iagno sed , the m ore l ikely perma nent n erve a nd mu scle damag e can be

prevented.

9

Rules for safe operation with nylon line cutting head











DANGER

Always stop the engine when a cutting attachment jam occurs.
Do not attempt to remove an object causing a jam if the engine is running.
Injury can occur if a jam is removed and the cutting attachment suddenly starts.

Use correct cutting attachment

WARNING



Serious injury may result from the improper use of cutting attachment.

Read and comply with all safety instructions listed in this Manual.

Use only flexible, non-metallic line recommended by ECHO.

Use only cutting attachments recommended by ECHO.

Excessive nylon line beyond cut off knife could fly off when the nylon line cutter
starts rotating after adjustment of nylon line length.
Use extreme caution w he n o per ati ng over bare spots and gr av el, be cause the line
can throw small rock particles at high speeds.

The shield on the unit cannot stop objects which bounce or ricochet off hard

surfaces.

Do not trim in any area where there are broken strands of fencing wire.
Remove the broken pieces of wire, or give the area wide berth.
Wear proper safety protection.
Do not cut where you cannot see what the cutting device is cutting.

 Operate the machine with its throttle trigger fully grasped for higher engine speed.
 Do not give an excessive load to the spinning cutting head to stop.
 In case of cutting t he thick g rass, cut th e grass li ttle by litt le so as to maintain engine sp eed.
 When the rotation of the cutting head stops during operation, immediately release the

throttle trigger to lower the engine speed, pull the machine away from the grass, and fully
grasp the throttle trigger and rotate the cutting head to continue cutting.

 Stop the engine immediately when grass or cord / string like object wound around the

cutting head, and take them off before starting the engine.
The basic cutting actions pictured are: Trimming, scything, scalping and lawn edging.
These actions are as follows:

Trimming

1. Angle to wall. 2. Debris. 3. Knife side raised. 4. Angle to ground.

This is feeding the trimmer carefully into the material you wish to cut.
Tilt the head slightly to direct the debris away from you.
If cutting up to a ba rrier such as a fence, wall or tree, ap proach from an angle wher e any debris
ricocheting off the barrier will fly away from you.
Move the line head slo wly until the grass is cut right up to t he ba rrier, but do not j am (overf eed)
the line into the barrier.
If trimming up to wire mesh or chain link fencing, be careful to feed only up to the wire.
If you go too far, the line will snap off around the wire.
Trimming can be done to cut through weed stems one at a time.
Place the nylon line cutter near the bottom of the weed never high up, which could cause the
weed to chatter and catch the line.
Rather than cut the weed right through, just use the very end of the line to wear through the
stem slowly.

Scything

This is the cutting or mowing of large grassy areas by sweeping or swinging the trimmer in a
level arc.
Use a smooth, easy motion.
Do not try to hack or chop down the grass.
Tilt the line head to direct the debris away from you on the scything stroke.
Then return without cutting grass for another stroke.
If you are well protecte d an d do not c are w het her s om e d ebri s i s th rown i n y our d ire ction, you
may scythe in both directions.

10

Scalping and edging

Both of these are done with the line head tilted at a steep angle.
Scalping is removing top growth, leaving the earth bare.
Edging is trimming the grass back where it has spread over a pavement or driveway.
During both edging and scalp ing, hol d the unit at a ste ep an gle in a posi tion where the debris ,
and any dislodged dirt and stone, will not come back towards you even if it ricochets off the
hard surface.
Although the pictures show how to edge and scalp, every operator must find for himself the
angles which suit his body size and cutting situation.

Nylon line head or disc rotates clockwise.
The knife will be on the right side of the shield.

1. Cut on this side. 2. Debris.

For nearly all cu tting, it is good to til t the nylon cutte r so that c ontact is m ade on the part o f line
circle where the line is moving away from you and the shield (See appropriate picture).
This results in the debris being thrown away from you.
Tilting the head to the wrong side will shoot the debris toward you.
If the nylon line cutter is held flat to the ground so that cutting occurs on the whole line circle,
debris will be thrown at you, drag will slow the engine, and you will use up a lot of line.

Do not trim near cars or pedestrians.

Always wear proper eye protection against thrown objects.
Objects can bounce u p at you from the grou nd under the shield , or ricochet off any nearby hard
surface.
Do not trim at high speed near roadways when there is traffic, or in places where there are
pedestrians.
If you must trim where people are in the zone of risk use a much lower or reduced speed, by
using a partial trigger setting.
Do not use full throttle.

Line pushed into wire fencing will snap off.

Do not push the line into tough weeds, trees, or wire fences.
Pushing the line into chicken wire, chain link fencing or thick brush can result in snapped-off
line ends being hurled back at the operator.
The proper way is to cut right up to a barrier, such as any of those mentioned, but never run
the line into or through the obstruction.
Do not cut closely to obstruction or barrier.

Avoid wire.

Avoid nylon line contact with broken wire fencing.
Pieces of wire broken off by the trimmer can be hurled at high speeds.

11

Description

1. Bearing housing

2. Shaft tube - Part of the unit that provides a casing for
power transmission shaft.

3. Safety decal - Part number X505-000140

4. Front (loop) handle - Ligh t weight, suitable for nylo n line
trimmer only.

5. Ignition switch - "Slide switch" mounted on top of the
throttle trigger housing, move switch forward to RUN,
backward to STOP position.

6. Throttle trigger lockout - Locks throttle trigger in the
idling position un til you ha ve a proper grip with your rig ht
hand around the handle.

7. Grip - Rear (right hand) handle.

8. Throttle trigger - Activated by the operator's finger for
controlling the engine speed.

9. Air cleaner cover - Covers air filter.

10. Fuel tank - Contains fuel and fuel filter.

11. Fuel tank cap - For closing the fuel tank.

12. Starter handle - Pull handle to start the engine.
(" " START)

13. Silencer cover - Cover the silencer not to make operat or
touch to hot surface of silencer.

14. Spark plug

15. Operator's Manual - Included with unit.
Read before operation and keep for future reference to
learn proper, safe operating techniques.

16. Tools - 13 x 19 mm T-wrench (combination screwdriver
/ spark plug socket), 4 mm hexagonal wrench and bar
tool.

17. Goggles

18. Shield - Device to protect the operator from accidental
contact with the cutting head and thrown objects.
Cut off knife; Cut nylon line to adjust line length to proper
swath.

19. Cutting attachment - Nylon line head for cutting grass
and weed.

12

Assembling

Front (loop) handle installation

CAUTION

Install the handle so that it does not hide any of the safety decals.

1. Front (Loop) handle. 2. Handle bracket. 3. Four screws (M5 x 35).

 Position the handle in a comfortable operating position and tighten screws (M5 x 35).
 The cutting attachment should be 5 - 7.5 cm above the ground and as level as possible.

Plastic shield installation

WARNING

The cut off knife on the debris shield has sharp edges.
Avoid contact when installing or removing the line head.

CAUTION

Do not operate the trimmer without the shield in the correct position.

1. Shield. 2. Plastic sleeve. 3. Output shaft. 4. Wing nut. 5. Washer.

6. Bolt. 7. Bearing housing. 8. Cut off knife.

1) Remove plastic sleev e from out put sha ft.

2) Remove wing nut, washer, and bolt.

3) Snap the shield over the bearing housing.

4) Install bolt, washer and wing nut.

Nylon line head installation

CAUTION

Stop the engine before handling the nylon line head.

1. Output shaft. 2. Fixing plate. 3. Bearing housing. 4. Locking tool.

5. Nylon line head.

1) Rotate the output shaft until the holes in fixing plate and in bearing housing are aligned.

2) Insert locking tool through these holes.

3) Install nylon line head to output shaft rotating clockwise.

4) Remove locking tool.

Nylon line head

Type :
Thread : Right-handed 3/8 x 24 UNF

Adjusting nylon line

CAUTION

Use only flexible, non-metallic line recommended by ECHO.

Hit knob against the ground surf ace lightly. 1. Tap knob. 2. Nylon line c omes out.

 Make sure there is no bysta nder wi thin 15 m radiu s an d pay eno ugh atte ntion to ob jects in

the surroundings before starting operation.

 Do not rotate the cutting head at more than 10000 r/mim.
 Do not hit the cutting h ead ag ainst hard foreign matters su ch a s ro ck s, concrete, tree stub

and bottle etc.

 When releasing nylon line from s pool hit tap k nob of spool against the gro und surface li ghtly

at rotation speed lower than 4500 r/min.

 Cut off knife on th e shield adju sts cutting sw ath to 40 cm au tomatically b y cutting nylo n lines

evenly when attachment starts rotating.

 When operating with l ess than ma ximum cutti ng swath (40 cm), cut two ny lon lines in equal

lengths.

13

Replacing nylon line





DANGER



Shut down trimmer engine without fail and make sure cutting head has stopped
rotating before starting replacement procedure.
Make sure each outer p eriphery of pawls of ho using spread s almos t fully up to th e
outer periphery of respective window of cover.
If they are loosely fi tted and the cutting head is turned, cover or inside components
can fly off which is dangerous.

1. Pawl. 2. Cover. 3. Housing.

(1)Press "retaining pawls" (at two places) inward and lift cover to remove it.

It is easier to remove one after another.

4. Spool

(2)Remove spool.
(3)When nylon line on the spool is almost exhausted, remove remaining line from spool and

wind "new line" according to the procedures (4) and beyond.
When the line on the spool is "m elted and st uck" remove the entire lin e while pee ling off the
"melted and stuck" portion and wind the "removed line" anew according to procedures (4)
and beyond.

5. Bent portion. 6. Notch nylon line. 7. Intermediate separator.

(4)Bend the line at the point 10 cm away from the middle of whole length and hook the bent

portion into the "notch" of the intermediate separator.

8. Winding direction for the line. 9. If wound unfirmly, the line loosens.

10. Wind firmly into respective groove.

(5)Wind the line firmly into groove of the spool following "winding direction for the line ".

11. Respective notch

(6)When the line is wound to the end hook both line ends into respective notch of spool for

retaining tentatively the line while leaving line ends approximately 10 cm beyond notch.

12. Eyelets

(7)Align notches of spool for the line with grooves of eyelets and fit spool into cover.
(8)Pull out the line from spool.

(A) Remove the line from "respective notch of spool" and (B) pass it through "groove of
respective eyelet".

13. Recesses. 14. Window.

(9)Fit cover and housing together.

(C) Align "eyelets" of cover with "r ecesses " of housi ng, and (D) pres s pawls of ho using int o
respective window of cover until the pawls are firmly fitted into the windows.

14

Fuel

Fuel

NOTE

Stored fuel ages.
Do not mix more fuel than you expect to use in thirty (30) days.
Do not mix directly in fuel tank.

 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.

 Recommended mixt ure ratio; 50 : 1 (2 %) for ISO-L-EGD Stan dard (ISO/CD 137 38), JASO

FC, FD grade and ECHO Premium 50 : 1 oil or 25 : 1 (4 %) for JASO FB grade 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.

Handling fuel

DANGER

After refuelling, tighten fuel cap firmly and check for leakage.
In case of fuel leaka ge, repa ir befo re starting opera tion sinc e ther e is a danger of fire.

 Never smoke or allow flame or sparks near fuel.
 Always fill the fuel tank outdoors.

Never pour fuel indoors.

 Always remove the fuel cap slowly to relieve any pressure buildup in the tank.
 Never refuel the engine when it is hot or running.
 Always use an approved, safe fuel container.

∗ Shoulder level

 It is not permitted to fill fuel above the shoulder level of fuel tank.
 After fuelling, always wipe away spilled fuel.

 Always move at least 3 m away from the fuelling spot before starting the engine.
 Never store the unit with fuel in the tank a fuel leak could start a fire.

15

Operation





Starting the cold engine

WARNING



When engine starts, the cutting attachment m ay rotate, ev en with throttle trigger i n
low-speed position.
When engine is started, confirm if there is not any abnormal vibration or sound.
If there is abnormal vibration or sound, ask your dealer to repair.

∗ Starter handle

NOTE

 Check unit for loose nuts, bolts and screws before starting.
 Always clear work area of debris before starting operation.
 Always hold the unit firmly on the ground.
 When pulling starter handle, use short pulls, 1/2 to 2/3 of rope length.
 Do not allow the starter handle to snap back against the housing.

1. Ignition switch. 2. Throttle trigger lockout. 3. Throttle trigger.

4. Choke lever. 5. Purge bulb. 6. Fuel return line.

 Before starting engine make sure cutting attachment is not in touch with ground or other

objects.

 Place ignition switch in the "start" position.
 Push purge bulb until fuel is visible in clear fuel return line.

 Move choke lever to close ( ) position.
 Pull starter handle until first firing soun d.
 Open ( ) choke.
 Restart engine and allow to warm up.

Starting the warm engine

NOTE

If engine does not start after 4 pulls, use cold starting procedure.

 Place ignition switch in the "start" position.
 Move choke lever to open ( ) position .
 If tank is not empty, pull starter handle.
 If fuel tank is empty, a fter refilling, pus h the purge bulb (until fuel is visible in clear fuel return

line).
Pull starter handle.

Stopping the engine

WARNING

If engine does not stop, close choke to stall engine.
Have your ECHO dealer inspect and repair ignition switch before using the unit.

1. Throttle trigger. 2. Ignition switch.

 Release throttle trigger and allow engine to idle.
 Place ignition switch in the "STOP" position.

3. Spark plug cap. 4. Spark plug.

Always disconnect the spar k plug cap (ign ition cable) from the spark plug to ensure the engine
cannot be started before you work on the unit or leave it unattended.

16

Service maintenance guide

Area Maintenance Page Before use Monthly

Air filter Clean / Replace 19 •
Fuel system Inspect 19 •
Fuel filter Inspect / Clean / Replace 19 •
Spark plug Inspect / Clean / Adjust / Replace 19 •
Cooling system Inspect / Clean 19 •
Carburettor Adjust / Replace and adjust 20 •
Silencer Inspect / Tighten / Clean 20 •
Drive shaft Grease 20 •*
Starter Inspect (18) •
Cut off knife Inspect / Clean - •
Screws, bolts and nuts Inspect, Tighten / Replace - •

IMPORTANT

Time intervals shown are maximum.
Actual use and your experience will determine the frequency of required maintenance.
* Or 50 hours, whichever occurs first.

17

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 plugged
 Exhaust port / silencer plugged

 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 trimmer service operations, other than items listed in the Operato r's Manual, should be performed by compe tent
service personnel.
Fuel vapors are extremely flammable and may cause fire and / or explosion.
Never test for ignition sp ark by grounding spark plug near cylinder plug hol e, otherwise serious perso nal injury may
result.

NOTE

" " START (See page 2)

When starter grip cannot be pulled lightly, the trouble is diagnosed as failure of engine inside.
Please consult your dealer.
If disassembled inadvertently, it can cause injury.

18

Maintenance and care

 If you have any questions or problems, please contact your ECHO dealer.

Cleaning air filter

NOTE

If filter is excessive dirty or no longer fits properly, replace it.

1. Air cleaner cover. 2. Air filter.

 Close choke and remove air cleaner cover.
 Remove air filter (air filter is located inside air cleaner cover).
 Brush dirt from filter or wash it in a suitable cleaner.
 Dry it completely before installation.
 Reinstall the air filter and cover.

Check fuel system

 Check before every use.
 After refuelling, make s ure fuel do es not leak o r exude from around fue l pipe, fue l grommet

or fuel tan k 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.

Replacing fuel filter

1. Fuel filter. 2. Fuel line.

 Use a piece of steel wire or the like to pick up fuel filter through fuel tank opening.
 Pull old filter from fuel line.
 Install new fuel filter.

Check spark plug

∗ Spark plug gap: 0.6 to 0.7 mm

 Check plug gap.
 Correct gap is 0.6 to 0.7 mm.
 Inspect electrode for wear.
 Inspect insulator for oil or other deposits.
 Replace plug if needed and tighten to 15 - 17 N•m (150 to 170 kgf•cm).

Cooling system maintenance

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,
or
 Dust and grass build up on the out side 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.

1. Air intake. 2. Cylinder fins.

 Remove dust and dirt from between fins.
 Before each use, remove accumulated debris from bottom engine intake grille located

between the fuel tank and starter.

19

Carburettor adjustment

CAUTION

Cutting attachment must not turn when unit is idling.

∗ Idle speed adjuster

Every unit is test run at the fact ory and the carburettor is fine tuned for maxi mum performan ce.
Any change from thi s set ting s hould be perf ormed o nly wi th t he aid of an a ccurate t achom eter
(see Specification for r/min setting).

Before adjusting carbu rett or, clean or replace a ir filt er, sta rt en gine and run several minu tes to
bring it to operating temperature.

Idle speed adjustment

Turn idle speed adjuster clock wise unt il cuttin g atta chmen t begins to turn, then turn screw out
anticlockwise until cutting attachment stops turning.
Turn screw out, anticlockwise, and additional 1 turn.

Cleaning silencer

1. Silencer. 2. Two bolts. 3. Silencer cover. 4. Hexagonal wrench.

 Clean deposits from silencer and tighten two bolts.

Lubricating drive shaft (flexible shaft)

NOTE

Use good quality lithium multi grease.

1. Shield. 2. Screw. 3. Bearing housing. 4. Bolt. 5. Flexible shaft.

6. Shaft tube.

1) Remove plastic shield.

2) Loosen bearing housing locating screw, at the top of the housing, remove mounting bolt.

3) Pull flexible shaft fro m t he shaft tube, wipe clean and recoat with a thin coa tin g 10 to 20 g,
of lithium base grease.

4) Slide the flexible shaft back in the shaft tube.
Do not get dirt on the flexible shaft.

5) Install the bearing housing and shield.

Checking the nylon line head

1. Pawl. 2. Cover. 3. Housing. 4. Window.

(1)Make sure each periphery of the two retain ing pawls of cove r spreads almost full y up to the

outer periphery of the respective housing window.

(2)Check mount of cutting head on trimmer and tighten if it is loose.
(3)Check the cutter head for deflection or abnormal noise rotating it by hand.

Deflection or abnorm al noise can cause abn ormal vibrati on to occu r or mount to tri mmer to
loosen during rotation which is dangerous.

(4)Inspect cover and tap knob for wear.

Before the slot of cover disappears that serves as a mark to indicate, when worn out, end
of useful life or when slot appears on bott om of the tap kno b, rep lac e the m with new parts
without fail.

(5)Check the cutting head for crack or chip.

Replace parts that show any crack or chip with new ones without fail.

20

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. Purge bulb

1) Drain the fuel tank completely .
A. Alternat ely press and release the purge bulb a numbe r o f ti mes to remove the fuel fro m

the purge bulb.

B. Start the engine and run it at idle speed until it comes to a natural stop.

2) Always store fuel in approved container.

2. Ignition switch

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.

3. Spark plug cap. 4. Spark plug.

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.

8) Install the spark plug (Do not connect ignition cable).

9) Once the unit is sufficiently cool and dry, wrap the engine section in a plastic bag or other
covering before putting them in storage.

10)Store unit in a dry, dust free place, out of the reach of children and other unauthorized
persons.

21

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 w ith
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 parts.

22

Specifications

Model

Mass: Unit without fuel, cutting attachment and guard

(ISO11806) kg 4.1 4.1

Volume: Fuel tank L 0.44
Cutting attachment:

Nylon line head
Line diameter
Line length
Thread

Gear ratio: Gear ratio and lubrication No reduction and good quality lithium grease
Rotational direction of output shaft se en from above: Clockwise
External dimensio ns: Length × Width × Height mm 1465 × 315 × 570 1465 × 315 × 570
Engine:

Type
Engine displacement
Maximum shaft brake power,

measured in accordance with ISO 8893
Engine speed at maximum engine power
Recommended maximum engine speed

with standard attachment installed
Recommended engine idling speed
Carburettor
Ignition
Spark plug

mmm3.0

mL (cm

kW

r/min
r/min

r/min

2 × 1 line
Right-handed 3/8 × 24UNF

Air cooled two stroke single cylinder

3

)

21.2

0.67
6500

7000
3000
Diaphragm type
Flywheel magneto, CDI system

NGK BPMR7A
Starter Recoil starter " " START (See page 2)
Clutch Automatic centrifugal clutch

Fuel: Regular grade petrol.

Minimum 89 Octane unleaded petrol is recommended.

Do not use fuel containing methyl alcohol or more than

10 % of ethyl alcohol.
Oil

Ratio

Two stroke, air-cooled engine oil.

50 : 1 (2%) for ISO-L-EGD Standard (ISO/CD13738),

JASO FC, FD grade and ECHO Premium 50 : 1 oil or

25 : 1 (4%) for JASO FB grade oil.
Fuel consumption at maximum engine power

Specific fuel consumption at maximum engine power

Sound pressure level: (ISO 22868) Lp
Sound power level: (ISO 22868) L

= dB(A) 91.8

Aeq

= dB(A) 102

WAeq

Vibration: (ISO 22867)

Right handle
left handle

L/h

g/(kW•h)

2

m/s

2

m/s

0.62

685

5.1

6.7

5.5

5.7

23

1Memorandum and Back cover

7-2 SUEHIROCHO 1-CHOME, OHME, TOKYO 198-8760, JAPAN
PHONE: [phone]. FAX: [phone].

©

2015

X771 - 000 73 4
X771 227-710 4

Printed in China

1508 1400 CN

24