Echo SRM-2305U User manual

1Top cover
OPERATOR'S MANUAL
GRASS TRIMMER / BRUSHCUTTER
X772 - 000 99 1
X772 227-700 1
© 2013 Printed in Japan 1405A 1212 ES
ENGLISH
WARNING
Read the instructions carefully and follow the rules for safe
operation.
Failure to do so could result in serious injury.
SRM-2305U

2
Introduction
2Introduc tion
ECHO Grass trimmers / Brushcutters are lightweight, high-performance, petrol engined units designed for weed control, grass
trimming and brush cutting in areas difficult to control by any other means.
Do not use this unit for any purpose other than aforementioned.
Never let children operate this unit.
This Manual provides the information necessary for assembly, operation and maintenance.
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 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.
If there is any clause in this Manual that is hard to be understood, please contact your ECHO dealer.

3
Contents
Decals and symbols............................................................................................................ 4
Rules for safe operation...................................................................................................... 5
Training.......................................................................................................................... 5
Eye protection................................................................................................................ 5
Hearing and ear protection ............................................................................................ 5
Protective clothing ......................................................................................................... 5
Additional protection ...................................................................................................... 5
Using shoulder harness ................................................................................................. 6
Fuel................................................................................................................................ 7
Physical condition .......................................................................................................... 7
Area and equipment inspection ..................................................................................... 7
General operation .......................................................................................................... 8
Vibration and cold........................................................................................................ 10
Repetitive stress injuries.............................................................................................. 10
Rules for safe operation with metal blade......................................................................... 11
Use correct blade......................................................................................................... 11
Reaction forces............................................................................................................ 12
Blade selection ............................................................................................................ 12
Rules for safe operation with nylon line cutting head ....................................................... 13
Use correct cutting attachment .................................................................................... 13
Description ........................................................................................................................ 15
Assembling ....................................................................................................................... 16
Drive shaft installation.................................................................................................. 16
U-handle installation .................................................................................................... 16
Shield installation......................................................................................................... 16
Guard plate installation ................................................................................................ 17
Installing blade............................................................................................................. 17
Fuel................................................................................................................................... 18
Fuel.............................................................................................................................. 18
Handling fuel................................................................................................................ 18
Operation .......................................................................................................................... 19
Starting the cold engine ............................................................................................... 19
Starting the warm engine............................................................................................. 19
Stopping the engine..................................................................................................... 19
Service maintenance guide .............................................................................................. 20
Troubleshooting ................................................................................................................ 21
Maintenance and care ...................................................................................................... 22
Cleaning air filter.......................................................................................................... 22
Check fuel system ....................................................................................................... 22
Replacing fuel filter ...................................................................................................... 22
Check spark plug ......................................................................................................... 22
Cooling system maintenance....................................................................................... 22
Carburettor adjustment ................................................................................................ 23
Cleaning silencer ......................................................................................................... 24
Angle transmission ...................................................................................................... 24
Storage ............................................................................................................................. 25
Long term storage (Over 30 days)............................................................................... 25
Disposal procedure........................................................................................................... 26
Specifications.................................................................................................................... 27

4
Decals and symbols
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.
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.
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 and bystanders.
"CAUTION" indicates a potentially
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
Circle and slash symbol
means whatever is
shown is prohibited.
NOTE
This enclosed message provide tips
for use, care and maintenance of the
unit.
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
attachment shaft in r/min
Wear foot protection and gloves Keep bystanders away 15 m
Emergency stop Beware of high-temperature areas
Warning!
Thrown objects!
Petrol and oil mixture
Usage without shield not permitted Carburettor adjustment
- Low speed mixture
Usage of metal blades not permitted Carburettor adjustment
- High speed mixture
Usage of nylon line cutting head not
permitted
Carburettor adjustment
- Idle speed
Part number 890617-43130

5
Rules for safe operation
Training
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 gloves offers some protection against contact with skin irritants such as poison
ivy.
Soft leather work gloves may also improve your grip.
Additional protection
1. Safety goggles. 2. Hearing protectors. 3. Head and face protection.
4. Shoulder harness. 5. Safety gloves. 6. Trim-fitting clothes.
7. Sturdy shoes or boots. 8. Long trousers.
Hay fever (Rhinitis) sufferers may wear disposable masks to help reducing the intake of
allergenic particles.
WARNING
Grass trimmers and brushcutters 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.
WARNING
In addition to head, eye and ear protection wear protective clothes, safety gloves 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.
For heavy brush cutting with metal blade, logger's trousers or leg chaps with
protective inserts are added considerations.

6
Using shoulder harness
Balance tool for a level plane of cutting head rotation.
1. Harness quick-release pin. 2. Throttle trigger. 3. Suspension point.
4. Ground level.
Use a shoulder harness when provided or when recommended in this Manual.
Adjust both harness and the suspension point on the unit so the unit hangs with the cutting
attachment a few centimetres above ground level.
The cutting attachment and shield should be level in all directions.
Harness the unit on the right side as shown.
5. Pull the white tab. 6. Shaft tube.
Place shoulder harness over the left shoulder and adjust strap so the quick-release pin rests
just below the waist.
Belt should be snug.
Attach grass trimmer / brushcutter to harness.
Check for correct adjustment by moving cutting attachment along ground.
Re-adjust position of suspension point if necessary.
a) Slide suspension point up and down the tube to find the right balance.
Rotate the clamp to level the cutting attachment and shield.
Lock in position.
If the suspension point is a free-spinning type, the unit may tend to roll over sideways,
however, you should still level the attachment and shield on the front-to-rear axis.
b) Balancing and levelling, as above, may require relocation of the clamp and readjustment of
the harness straps.
Also, each type of cutting attachment and shield mounted on the unit may require
balancing.
c) The accompanying shoulder harness is suitable for people of standard adult physique, who
are 150 cm - 195 cm in height and 60 cm - 140 cm in waist size.
WARNING


ECHO trimmers and brushcutters are designed to fit a wide variety of body sizes,
but may not be adjustable for extremely tall persons.
Do not use the unit if your feet can reach the cutting attachment when the unit is
attached to the harness.
In case of an emergency, use quick-release pin on harness to free yourself from
unit.
NOTE
A person's size can affect the balancing adjustment.
Also the balancing procedure may not work with some ECHO units on some persons.
If the shoulder harness does not fit you or cannot be adjusted well, please ask your ECHO
dealer for assistance.

7
Fuel
Handle fuel with care.
It is highly 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
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, harness, etc.-for the cutting attachment
to be used.
e) If used on the unit, the cutting attachment is properly tightened.
WARNING
Improper fit will result fly off the cutting attachment.
Never start the engine if the power transmission shaft is not in place to prevent the
engine from over speeding or the clutch from flying apart.

8
General operation
Do not run the engine indoors, or where there is poor ventilation.
Engine fumes contain deadly poisonous carbon monoxide.
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, or from the harness.
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 protective gear.
Never operate the unit without the proper guards, shoulder harness 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 /
brushcutters.
WARNING
Eye protection should be considered for everyone in the zone of risk.
Risk of eye injury diminishes with distance.

9
Stop the engine before leaving the machine, children are not allowed to use the machine, 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 vibration is a sign there may be dangerous trouble, such as a broken flywheel, 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 turned off, make sure the cutting attachment stops before the unit is 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.

10
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 blood circulation by performing vigorous arm exercises during frequent work
breaks and also by not smoking.
Limit the number of hours of operation.
Try to fill each day with jobs where operating the trimmer or other hand-held power
equipment is not required.
If you experience discomfort, redness and swelling of the fingers, followed by whitening and
loss of feeling, consult your physician before further exposing yourself to cold and vibration.
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 hand and arm muscles.
See a doctor if you feel tingling, numbness or pain in the fingers, hands, wrists or arms.
The sooner RSI is diagnosed, the more likely permanent nerve and muscle damage can be
prevented.

11
Rules for safe operation with metal blade
Use correct blade
1. Blade. 2. Cup. 3. Nut.
Inspect blades before use.
Wires can catch and flap around
Always use the blade suited for the job.
Do not hit rocks, stones, tree stumps, and other foreign objects with the blade.
Do not cut into the ground with the blade.
If blade strikes an obstruction, stop engine immediately and inspect blade for damage.
Do not operate with a dull, bent, fractured or discoloured blade and worn or damaged nut.
Do not run engine at full throttle without a load.
Remove all foreign objects from work area.
Do not operate brushcutter without shoulder harness and shield.
Scything weeds
This is cutting by swinging the cutting attachment in a level arc.
It can quickly clear areas of field grass and weeds.
Scything should not be used to cut large, tough weeds or woody growths.
If a sapling or shrub binds the cutting attachment, do not use the cutting attachment as a lever
to free the bind, because this will cause cutting attachment failure.
Instead, shut off the engine and push the sapling or shrub to free the blades.
Do not use a cracked or damaged blade.
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.
WARNING


Serious injury may result from the improper use of blades.
Read and comply with all safety instructions listed in this Manual.
The metal blade is designed especially to cut weeds and grass.
To avoid injury due to kickback or blade fracture, do not use the metal blade to cut
brush or trees.
Use only cutting attachments recommended by ECHO.
Pieces from a cracked metal blade can fly off during operation.
Inspect metal blades for cracks before each use.
Discard cracked blades no matter how small the crack.
Cracked blades can be the result of misuse or improper sharpening.

12
Reaction forces
1. Push
The operator may feel the unit push toward him when he tries to cut the object on right.
If he cannot hold the blade in the cut, a kickback may occur when the blade is pushed out to
where the teeth at the outside furthest point from the operator are cutting.
The blade will "kickback" sideways.
2. Pull
The opposite of push.
When object on left, the operator may feel the unit pull away.
Although this pull type of cutting may cause sawdust to be thrown back at the operator, it is
recommended for sawing off heavy brush because the cutting is smoother and more stable
than when the unit pushes.
Kickback
This may occur when the moving blade at the front of the blade circle contacts strong brush or
trees.
The force that occurs pushes the entire unit and blade violently away in an arc.
Kickback is a danger to a bystander and also a jolting force to the operator.
Blade selection
Plastic grass / weed blade may be used wherever the nylon line head is used.
Do not use this blade for heavy weeds or brush!
8 tooth weed / grass blade is designed for grass, garden debris and thick weeds.
Do not use this blade for brush or heavy woody growth, 2 cm diameter or larger.
80 tooth brush blade is designed for cutting brush and woody growth up to 2 cm diameter.
22 tooth clearing blade is designed for dense thickets and saplings up to 6.5 cm diameter.
WARNING
Be sure you understand the reaction forces of push and pull, and kickback described
in this Manual, and how these forces may affect your balance in the operation of a
unit.
WARNING
Use only ECHO approved attachments.
Serious injury may result form the use of a non-approved attachment combination.
ECHO will not be responsible for the failure of cutting devices, attachments or
accessories which have not been tested and approved by ECHO.
Read and comply with all safety instructions listed in this manual.
The type of blade used must be matched to the type and size of material cut.
An improper or dull blade can cause serious personal injury.
Blades must be sharp.
Dull blades increase the chance of kick-out and injury to yourself and bystanders.

13
Rules for safe operation with nylon line cutting head
Use correct cutting attachment
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 the thick grass, cut the grass little by little so as to maintain engine speed.
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 barrier such as a fence, wall or tree, approach from an angle where any debris
ricocheting off the barrier will fly away from you.
Move the line head slowly until the grass is cut right up to the barrier, but do not jam (overfeed)
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 protected and do not care whether some debris is thrown in your direction, you
may scythe in both directions.
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.
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 when operating over bare spots and gravel, because 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.

14
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 scalping, hold the unit at a steep angle in a position 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 anticlockwise.
The knife will be on the left side of the shield.
1. Cut on this side. 2. Debris.
For nearly all cutting, it is good to tilt the nylon cutter so that contact is made on the part of 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 up at you from the ground 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.

15
Description
1. Angle transmission - Having two gears to change the
angle of rotating axis.
2. Shaft tube - Part of the unit that provides a casing for
power transmission shaft.
3. Safety decal - Part number 890617-43130
4. Throttle trigger - Activated by the operator's finger for
controlling the engine speed.
5. Ignition switch - "Slide switch" mounted on top of the
throttle trigger housing, move switch upward to RUN,
downward to STOP position.
6. Throttle trigger lockout - Locks throttle trigger in the
idling position until you have a proper grip with your right
hand around the handle.
7. U-handle - Having the configuration of a bicycle handle
bar.
8. Suspension point - Device on which the harness can be
hooked.
9. Safety decal - Part number X505-002310
10. Air cleaner cover - Covers air filter.
11. Fuel tank cap - For closing the fuel tank.
12. Fuel tank - Contains fuel and fuel filter.
13. Starter handle - Pull handle to start the engine.
14. Silencer cover - Cover the silencer not to make operator
touch to hot surface of silencer.
15. Spark plug
16. Operator's Manual - Included with unit.
Read before operation and keep for future reference to
learn proper, safe operating techniques.
17. Tools - 17 x 19 mm T-wrench (combination screwdriver
/ spark plug socket), 8 x 10 mm spanner, 4 mm
hexagonal wrench and bar tool.
18. Goggles
19. Blade shield - Device to protect the operator from
accidental contact with the cutting head and thrown
objects.
Guard plate and four bolts M5 x 25.
Cut off knife; Cut nylon line to adjust line length to proper
swath, guard plate, four bolts M5 x 18, washers and nuts,
two bolts M5 x 14 and nuts.
20. Shoulder harness - An adjustable strap to suspend unit.

16
Assembling
Drive shaft installation
1. Two bolts (M5 x 25). 2. Shaft tube. 3. Line.
Stand the engine upright on a level surface.
Loosen the two bolts at the connection between the engine and the shaft tube.
Carefully fit the shaft tube to the engine, making sure that the power transmission shaft is
correctly engaged.
Rotate the drive shaft housing until the bearing housing is in line with the engine.
Tighten the two bolts to fasten the drive shaft assembly.
U-handle installation
1. Handle assembling bracket (upper). 2. Handle assembling bracket (lower).
3. Handle assembling bolt (8 mm). 4. Washer. 5. To engine.
Install handle assembling bracket (upper) in handle assembling bracket (lower) and fix
handle by tightening handle assembling bolt (8 mm) lightly.
Adjust inclination of handle to adequate position (easy to operate) and tighten firmly handle
assembling bolt (8 mm).
1. Throttle grip. 2. Slot. 3. Stopper hole. 4. Screw (M5 x 30). 5. Nut.
Loosen the screw (M5 x 30) of the throttle grip and remove the screw and nut.
Slip the right-side handle into the throttle grip and fit it to the slot for rotation prevention.
Locate the throttle grip so that the screw can pass through the stopper hole.
Securely tighten the screw and nut.
1. Throttle cable. 2. Shaft tube. 3. Right hand U-handle. 4. Cable fixing clip.
To eliminate loosening of throttle cable fix it to shaft tube (two places) and to right hand U-
handle (one place) with cable fixing clips.
1. Wire end. 2. Nuts. 3. Carburettor.
Check that throttle operates freely and returns to idle position.
Adjust the play of wire end on carburettor side to 1 - 2 mm.
Shield installation
1. Shield. 2. Angle transmission. 3. Four bolts (M5 x 25).
Fit shield to mounting portion of angle transmission and tightening four bolts (M5 x 25)
securely.
NOTE
The line on the shaft tube must be in contact with the engine.
CAUTION
Install the handle so that it does not hide any of the safety decals.
After assembly, adjust the play of wire end on carburettor side to 1 - 2 mm.
NOTE
Tighten the U-handle assembling bolt (8 mm) when it comes loose while mowing.

17
Guard plate installation
(For nylon line operation)
1. Guard plate. 2. Shield. 3. Four bolts (M5 x 18). 4. Cut off knife.
5. Two bolts (M5 x 14).
Fasten guard plate to shield using four bolts (M5 x 18), washers and nuts.
Fit cut off knife on the guard plate and tighten two bolts (M5 x 14) and nuts.
Installing blade
Inspect blades before installation.
Check for sharpness.
Dull blades increase the risk of blade kickback reactions.
Small cracks can develop into fractures resulting in a piece of blade flying off during operation.
Discard cracked blades no matter how small the crack.
1. Blade retainer. 2. Blade retainer fixing slot. 3. Blade.
4. Lower blade retainer. 5. Cup. 6. Nut.
Remove nut, cup and lower blade retainer.
Install blade retainer, blade, lower blade retainer, cup and nut finger tight.
7. Locking tool
Insert locking tool into a hole located on the right side of angle transmission while forcing
retainer spring to the left side.
Insert locking tool further into blade retainer fixing slot to fix output shaft.
8. Tightening direction. 9. Socket wrench.
Tighten the nut (turn anticlockwise) using a socket wrench.
Never fasten while applying your weight.
Otherwise the thread of nut could be broken.
Remove locking tool.
WARNING
The cut off knife on the debris shield has sharp edges.
Avoid contact when installing or removing the line head.
DANGER
If worn nut and cup for blade are used, there is a danger of blade getting loose.
Replace them with new ones.
CAUTION
Fasten output shaft using locking tool securely in order to avoid the possibility of
output shaft rotating when mounting cutting blade which will prevent the cutting
blade fastening nut from being tightened sufficiently.
Wear gloves to reduce the risk of injury caused by unintentional contact with the
blade.
NOTE
Check to be sure the locking tool is fully engaged to prevent the output shaft from turning.

18
Fuel
Fuel
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 mixture ratio; 50 : 1 (2 %) for ISO-L-EGD Standard (ISO/CD 13738), 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 inflammable.
- Always store fuel in approved container.
Handling fuel
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.
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.
DANGER
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.

19
Operation
Starting the cold engine
∗Starter handle
1. Ignition switch. 2. Throttle trigger lockout. 3. Throttle trigger.
4. Choke knob. 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.
Pull choke knob to close ( ) position.
Pull starter handle until first firing sound.
Open ( ) choke.
Restart engine and allow to warm up.
Starting the warm engine
Place ignition switch in the "start" position.
Move choke knob to open ( ) position.
If tank is not empty, pull starter handle.
If fuel tank is empty, after refilling, push the purge bulb (until fuel is visible in clear fuel return
line).
Pull starter handle.
Stopping the engine
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 spark plug cap (ignition cable) from the spark plug to ensure the engine
cannot be started before you work on the unit or leave it unattended.
WARNING


When engine starts, the cutting attachment may rotate, even with throttle trigger in
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.
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.
NOTE
If engine does not start after 4 pulls, use cold starting procedure.
WARNING
If engine does not stop, close choke to stall engine.
Have your ECHO dealer inspect and repair ignition switch before using the unit.

20
Service maintenance guide
Area Maintenance Page Before use Monthly
Air filter Clean / Replace 22 •
Fuel system Inspect 22 •
Fuel filter Inspect / Clean / Replace 22 •
Spark plug Inspect / Clean / Adjust / Replace 22 •
Cooling system Inspect / Clean 22 •
Carburettor Adjust / Replace and adjust 23 •
Silencer Inspect / Tighten / Clean 24 •
Angle transmission Grease 24 •*
Starter rope Inspect - •
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.