INSTRUCTION MANUAL
CHAIN SAW
CS-271T
WARNING
Read the instructions carefully and follow the rules for safe
operation.
Failure to do so could result in serious injury.
ECHO, INCORPORATED
X750-018 73 0
X750 323-580 0
400 Oakwood Road, Lake Zurich, Illinois 60047-1564
Phone : 847-540-8400
Printed in Japan 1101L 1929 ES
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RULES FOR SAFE OPERATION
A. Kickback Safety Precautions for Chain Saw Users
WARNING!
KICKBACK may occur when the nose or
tip of the guide bar touches an object, or
when the wood closes in and pinches the
saw chain in the cut.
1.With a basic understanding of
kickback, you can reduce or eliminate
the element of surprise.
Sudden surprise contributes to
accidents.
Tip contact in some cases may cause a
lightning fast reverse REACTION, Kicking
the guide bar up and back towards the
operator.
Pinching the saw chain along the top of
the guide bar may push the guide bar
rapidly back towards the operator.
Either of these reactions may cause you to
lose control of the saw which could result
in serious personal injury.
2.Keep a good firm grip on the saw with
both hands, 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.
Don’t let go.
The Kick Guard® device is not installed on
the guide bar when you purchase your
ECHO chain saw.
3.Make sure that the area in which you
are cutting is free from obstructions.
Do not let the nose of the guide bar
contact a log, branch, or any other
obstruction which could be hit while
you are operating the saw.
The Kick Guard® can be used in a majority
of cutting operations, and is especially
recommended for beginners,
homeowners, or chain saw novices.
Most cutting operations can be
accomplished with the Kick Guard® in
place.
4.Cut at high engine speeds.
5.Do not overreach or cut above
shoulder height.
Do not rely exclusively upon the safety
devices built into your saw.
As a chain saw user, you should take
several steps to keep your cutting jobs
free from accident or injury.
6.Follow manufacturer’s sharpening and
maintenance instructions for the saw
chain.
7.Only use replacement bars and chains
specified by the manufacturer or the
equivalent.
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B. Other Safety Precautions
11.Shut off the engine before setting the
1.Do not operate a chain saw with one
chain saw down.
hand! Serious injury to the operator,
helpers, bystanders, or any
combination of these persons may
result from one-handed operation.
A chain saw is intended for two-
handed use.
12.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.
2.Do not operate a chain saw when you
are fatigued.
13.When cutting a limb that is under
tension, be alert for spring-back so that
you will not be struck when the tension
in the wood fibers is released.
3.Use safety footwear, snug-fitting
clothing and protective gloves.
Wear eye, hearing, and head
protection devices.
14.Keep the handles dry, clean, and free
of oil or fuel mixture.
4.Use caution when handling fuel.
Move the chain saw at least 3 m
(10 feet) from the fueling point before
starting the engine.
15.Operate the chain saw only in well
ventilated areas.
16.Do not operate a chain saw in a tree
unless you have been specifically
trained to do so.
5.Do not allow other persons to be near
the chain saw when starting or cutting
with the chain saw.
17.All chain saw service, other than items
listed in the Instruction manual
maintenance instructions, should be
performed by competent service
personnel.
Keep bystanders and animals out of
the work area.
6.Do not start cutting until you have a
clear work area, secure footing, and a
planned retreat path from the falling
tree.
(For example, if improper tools are
used to remove the flywheel or if an
improper tool is used to hold the
flywheel in order to remove the clutch,
structural damage to the flywheel could
occur and could subsequently cause
the flywheel to burst.)
7.Keep all parts of your body away from
the saw chain when the engine is
running.
8.Before you start the engine, make sure
that the saw chain is not contacting
anything.
18.When transporting your chain saw, use
the appropriate guide bar scabbard.
19.Spark arrestor mufflers approved to
SAE Standard J335 are standard on
ECHO chain saws to reduce the
possibility of forest fires.
9.Carry the chain saw with the engine
stopped, the guide bar and saw chain
to the rear, and the muffler away from
your body. When carrying a chain saw
with the engine running, push the front
hand guard forward to engage the
chain brake.
Do not operate the chain saw with a
loose or defective muffler.
Do not remove the spark arrestor
screen.
10.Do not operate a chain saw that is
damaged, improperly adjusted, or not
completely and securely assembled.
Be sure that the saw chain stops
moving when the throttle control trigger
is released.
CS-271T
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CONTENTS
RULES FOR SAFE OPERATION............................................................................. 1
SYMBOLS AND SIGNS ........................................................................................... 3
PACKING LIST ......................................................................................................... 5
NOMENCLATURE OF PARTS ................................................................................. 6
OPERATOR SAFETY............................................................................................... 8
CORRECT USE OF CHAIN BRAKE ........................................................................ 9
PREPARATION FOR USE ....................................................................................... 10
FUEL AND LUBRICANT .......................................................................................... 12
EMISSION DATA ...................................................................................................... 13
OPERATION ............................................................................................................ 14
CUTTING INSTRUCTION ........................................................................................ 17
CHAIN AND GUIDE BAR COMBINATION .............................................................. 22
MAINTENANCE AND CARE.................................................................................... 23
SETTING THE SAW CHAIN..................................................................................... 27
TROUBLESHOOTING ............................................................................................. 29
STORAGE AFTER USE........................................................................................... 30
TECHNICAL DATA ................................................................................................... 30
WARRANTY STATEMENTS..................................................................................... 31
This chain saw is designed for cutting wood or wood products. Do not cut solid metal,
sheet metal, plastic or any non-wood materials.
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.
SYMBOLS AND SIGNS
CIRCLE AND SLASH SYMBOL
This symbol means the specific action
shown is prohibited. Ignoring these
prohibitions can result in serious or
fatal injury.
DANGER
The safety alert symbol accompanied by the
word “DANGER” calls attention to an act or
condition which WILL lead to serious
personal injury or death if not avoided.
NOTE
WARNING
This enclosed message provides tips for use,
care and maintenance of the unit.
The safety alert symbol accompanied by the
word “WARNING” calls attention to an act or
condition which CAN lead to serious
personal injury or death if not avoided.
IMPORTANT
The enclosed message provides information
necessary for the protection of the unit.
CAUTION
The safety alert symbol accompanied by the
word “CAUTION” calls attention to an act or
condition which may lead to minor or
moderate personal injury if not avoided.
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SYMBOL FORM
Symbol form/shape Symbol description/application Symbol form/shape Symbol description/application
WARNING!!
Choke control “Cold Start”
position (choke closed)
Read and follow all safety
precaution in the instruction
manual
Wear eyes, ears and head
protection
Oil and gasoline mixture
Chain oil fill
Tip contact may cause the
guide bar to move suddenly
upward and backward, which
may cause serious injury
Contact of the guide bar tip
with any object should be
avoided
Chain oiler adjustment
Purge pump
Both of the operator’s hands
must be used to operate the
chain saw
Hot surface
Carburetor adjustment
- Low speed mixture
Chain brake operation
Emergency stop
Carburetor adjustment
- High speed mixture
Carburetor adjustment
- Idle speed
STOP
DECALS
Part Number X505-006660
Part Number X505-002061
WARNING
Chain brake must be unlocked befre
removing or installing clutch cover. Improper
cover installation can result in serious injury
and cause severe damage to saw.
El freno de la cadena debe ser bloqueado
antes de remover o de instalar la cubierta
del embrague. La instalación incorrecta de
la cubierta puede dar lugar a lesión seria y
causar daño severo a la sierra.
Part Number X505-002310
Part Number X524-003920
Locate this safety decal on your unit.The complete
unit illustration found in the “NOMENCLATURE OF
PARTS” 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.
Note:
REPLACEMENT BAR AND CHAIN
There may be other replacement
GUIDE BAR
PART NO.
10” 10A4CD3740
12” 12A4CD3745
CHAIN
components for achieving kickback
protection. For details, please refer to
the chain and bar combination sheet
shown in the instruction manual.
PART NO.
90SG40CQ
90SG45CQ
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PACKING LIST
The ECHO product you purchased has been
After opening the carton, check for damage.
factory pre-assembled for your convenience. Due to Immediately notify your retailer or ECHO dealer of
packaging restrictions, guide bar and saw chain
installation and other assembly may be necessary.
damaged or missing parts. Use the packing list to
check for missing parts.
ECHO chain saw
13 x 19 mm T-wrench
ECHO Power Blend X™
2-stroke oil sample
Instruction manual
Safety manual
Warranty registration
card
Guide bar
Kick Guard®
Saw chain
CS-271T
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NOMENCLATURE OF PARTS
3
4
1
5
X505-002310
6
12
X505-002061
7
2
9
8
10
11
Part Number X505-002310
22
X524-003920
21
20
Part Number X505-002061
19
WARNING
Chain brake must be unlocked befre
removing or installing clutch cover. Improper
cover installation can result in serious injury
and cause severe damage to saw.
El freno de la cadena debe ser bloqueado
antes de remover o de instalar la cubierta
del embrague. La instalación incorrecta de
la cubierta puede dar lugar a lesión seria y
causar daño severo a la sierra.
18
13
17
16
X505-006660
14
15
Part Number X524-003920
Note:
REPLACEMENT BAR AND CHAIN
There may be other replacement
GUIDE BAR
CHAIN
components for achieving kickback
protection. For details, please refer to
the chain and bar combination sheet
shown in the instruction manual.
PART NO.
10” 10A4CD3740
12” 12A4CD3745
PART NO.
90SG40CQ
90SG45CQ
23
Part Number X505-006660
* If a decal cannot be read, a new one can be
ordered from your ECHO dealer.
CS-271T
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NOMENCLATURE OF PARTS
1. Instruction manual - Included with unit.
13. Fuel tank cap - For closing the fuel tank.
Read before operation and keep for future
reference to learn proper, safe operating
techniques.
14. Oil tank cap - For closing the oil tank.
15. Starter handle - Pull handle slowly until starter
engages then quickly and firmly. When
engine starts, return handle slowly.
Do not let handle snap back or damage to
unit will occur.
2. Safety manual - Describe operating and safety
instructions for this chain saw.
3. Front hand guard - Guard between the front
handle and the saw chain for protecting the
hand from injuries and aiding in control of the
chain saw if the hand slips off the handle.
This guard is used to lock the chain brake
which is to stop the saw chain rotation.
16. Air cleaner cover - Covers air cleaner.
17. Cleaner cover knob - Device for installing the
air cleaner cover.
18. Purge pump - When starting engine, push
purge pump 3 or 4 times.
4. Rear handle (for the right hand) - Support
handle located on the top of the engine
housing.
19. Throttle trigger - Device activated by the
operator’s finger, for controlling the engine
speed.
5. Choke control knob - Device for enriching the
fuel/air mixture in the carburetor to aid cold
starting.
20. Throttle trigger lockout - A safety lever which
must be depressed before the throttle trigger
can be activated in order to prevent the
6. Muffler cover - Cover the muffler not to make
accidental operation of the throttle trigger.
operator touch to hot surface of muffler.
21. Ignition switch - Device for connecting and
disconnecting the ignition system and thus
allowing the engine to be started or stopped.
7. Clutch cover - Protective cover to the guide
bar, saw chain, clutch and sprocket when the
chain saw is in use.
22. Front handle (for the left hand) - Support
handle located at the left side of the engine
housing.
8. Chain tension adjuster - Device to adjust
chain tension.
9. Chain catcher - A projection 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.
23. Lifting hook - If working off the ground the
operator must be trained in safe climbing
techniques and use of all recommended
safety equipment.
10. Guide bar - The part that supports and guides
the saw chain.
11. Saw chain - Chain, serving as a cutting tool.
12. Bar tip guard - Anti-kickback device attached
on the bar nose.
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OPERATOR SAFETY
VIBRATION AND COLD
EYE AND HEARING PROTECTION
• It is believed that a condition called Raynaud’s
Phenomenon, which affects the fingers of certain
individuals, may be brought about by exposure to
vibration and cold.
• Wear eye protection goggles that meet ANSI
Z 87.1 requirements.
Goggles meeting the requirements have the
mark “Z 87” stamped on them.
• Wear hearing protection.
Exposure to vibration and cold may cause
tingling and burning followed by loss of color and
numbness in the fingers.
If this guideline is not followed, hearing loss can
occur.
The following precautions are strongly
ECHO recommends wearing hearing protection
at all times.
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
chain saw, or other hand-held power equipment
is not required.
WEAR PROPER CLOTHING
• Snug fitting durable clothing should be worn.
Pants should have long legs, do not wear shorts.
Do not wear loose fitting clothing, scarves,
neckties, jewelry or any item that may become
tangled in surrounding growth or the chain saw
itself.
• Wear shoes with non-skid soles.
Do not wear open toed shoes or operate unit
barefooted.
• Wear no-slip, heavy duty work gloves to improve
your grip on the chain saw handles.
The gloves also help reduce the transmission of
machine vibration to your hands.
• 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 INJURY
HOT HUMID WEATHER
• It is believed that over-using the muscles and
tendons of the finger, hands, arms and shoulders
may cause soreness, swelling, numbness,
weakness and extreme pain to the areas just
mentioned.
• Heavy protective clothing can increase
operator fatigue which may lead to heat
stroke.
Schedule heavy work for early morning, or late
afternoon hours when temperatures are cooler.
Certain repetitive hand activities may put you at
a high risk for developing a repetitive stress
injury (RSI).
AVOID HOT SURFACES
• During operation, the muffler or catalytic muffler
and surrounding cover become hot.
• Never suspend the saw on a lanyard with the
engine running.
• An extreme RSI condition is Carpal Tunnel
Syndrome (CTS) which could occur when your
wrist swells and squeezes a vital nerve that runs
through the area. Some believe that prolonged
exposure to vibration may contribute to CTS.
CTS can cause severe pain for months or even
years.
To reduce the risk of RSI/CTS, do the following:
• Avoid using your wrist in a bent, extended or
twisted position.
• Always use the saw from the right-hand side of
your body - never from the left side.
• Always wear proper safety clothing to protect
your lower body from sharp saw chain and hot
muffler.
• Always keep exhaust area clear of flammable
debris during transportation or when storing,
otherwise serious property damage or personal
injury may result.
• Take periodic breaks to minimize repetition and
rest your hands.
• Reduce the speed and force in which you do the
repetitive movement.
• Do exercises to strengthen hand and arm
muscles.
• See a doctor if you feel tingling, numbness or
pain in your fingers, hands, wrists or arms.
The sooner RSI/CTS is diagnosed, the more
likely permanent nerve and muscle damage can
be prevented.
CS-271T
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SPARK ARRESTOR MUFFLER
• The spark arrestor muffler controls the exhaust
noise and prevents hot, glowing particles of
carbon from leaving the muffler.
This requirement also applies to all U.S. Forest
Service lands.
In some of these areas, the spark arrestor system
must be certified per USDA Forest Service
Regulation SAE J335.
Check with your local or state authorities for
specific regulations in your area.
Failure to follow these requirements is a violation of
the law.
Make sure the spark arrestor screen is in good
repair and properly seated in the muffler.
• Certain internal combustion engines operated on
forest, brush, and/or grass-covered areas in the
states of Washington, Oregon, Idaho, California,
Minnesota, New Jersey and Maine, are required
to be equipped with a spark arrestor.
CORRECT USE OF CHAIN BRAKE
Rotational kickback
DANGER
Kickback safety precaution for chain saw
users: Kickback may occur when the nose or
tip of the guide bar touches an object or
when the wood closes in and pinches the
saw chain in the cut.
The installation of a chain brake may be mandatory
by law or as stipulated by insurance regulations in
your area of operation.
You should inquire through local government
offices, your employer or your local dealer to
ensure that your chain saw conforms to the
required safety standard.
ECHO chain brakes have been designed and
tested to comply with international safety standards
as follows.
Reduced radius
belongs on top
This model needs to use low-kickback chain and
bar.
Do not use a combination other than those
specified on page 22.
For your own safety, do not remove the chain brake
system.
Rotational kickback
USA
: ANSI Standard B175.1 - 2000
Safety Requirement for chain saws
Canada : CSA Standard Z 62.1 CHAIN SAWS
WARNING
Chain moving downward at impact
Linear kickback
ANSI Standard B175.1 - 2000 stipulates that
the brake shall stop the chain 0.12 seconds
at an engine speed of 13500 r/min.
It is the responsibility of the owner/operator
to ensure that the brake is serviced, adjusted
and tested strictly in accordance with the
instructions as detailed herein in order to
ensure that the brake performance is
maintained in compliance with the Standard
B175.1 - 2000.
Pinch
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PREPARATION FOR USE
WARNING
Saw chain is sharp! Always wear gloves
when handling assembly, otherwise serious
personal injury may result.
KICK GUARD® TO BAR
INSTRUCTIONS
Tools Needed: Two 11 mm (7/16 in.) Wrenches.
For saws with Kick Guard® P/N 2893201 and
Symmetrical Low-Kick type (Double Guard)
guide bars.
Bolt (A)
Dimple (D)
1. Install bolt (A) in rear hole (B) of Kick Guard®
Kick Guard®
and through front hole (C) in guide bar.
Rear hole (B)
2. IMPORTANT: Dimple (D) in Kick Guard® must
Recess (E)
engage recess (E) in guide bar.
Front hole (C)
3. Tighten nut (F) and bolt (A) using 11 mm (7/16
in.) wrenches until snug. Make certain Kick
Guard® is flush against guide bar.
4. Tighten nut (F) 1/8 additional turn.
Nut (F)
Guide bar
5. Check to make certain Kick Guard® is tight on
guide bar.
GUIDE BAR AND SAW CHAIN
INSTALLATION/REMOVAL
NOTE
• Move the chain brake lever (Front hand guard)
fully rearward to remove or install the clutch
cover to chain saw.
Brake lever
(Front hand guard)
1. Remove spark plug lead. (See page 25)
2. Remove the clutch cover nut and remove clutch
cover.
A nut
Clutch cover
3. Remove bar and saw chain if necessary. See
“Maintenance and Care” section for guide bar/
saw chain maintenance procedures.
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4. Mount guide bar on stud and slide toward clutch
to make saw chain installation easier. Install
chain with cutters on top of guide bar facing
forward.
Clutch
Guide bar stud
5. Unlock the chain brake, and install the clutch
cover (and spiked bumper; option) over the
guide bar stud. Ensure chain tension adjuster pin
fits into the guide bar adjuster hole, brake band
is positioned around clutch drum.Tighten clutch
cover nut finger tight.
Guide bar
adjuster hole
Adjuster pin
Clutch cover
Nut
6. Turn saw over, and check brake band for correct
position on clutch drum. If brake band is not in
place around drum, remove cover, make sure
brake is unlocked, and reinstall.Tighten clutch
cover nut finger tight.
WARNING
Improper clutch cover assembly can result in
serious injury, and will cause severe saw
damage if unit is started. Never start or
operate saw if brake band is not in place on
clutch drum. Always check chain brake
operation after replacing cover. Do not use
saw if chain brake does not function
properly.
Unlock chain brake
Spiked bumper; option
ADJUSTING CHAIN TENSION
Direction to tension the chain
Adjusting screw
IMPORTANT
Always loosen clutch cover nut before turning
the chain tension adjuster, otherwise the clutch
cover and tensioner will be damaged.
1. Remove spark plug lead. (See page 25)
2. Loosen a clutch cover nut, if necessary.
3. Hold the bar nose up, and turn the adjuster
screw clockwise until chain fits snugly against
underside of the bar.
4. Tighten a nut with the bar nose held up.
Proper tension
Improper tension
5. Pull the chain around the bar by hand. Loosen
the adjustment if you feel tight spots.
6. When chain is properly tensioned, tighten clutch
cover nut securely - 20 to 23 N·m (175 to 200
in. lb.).
7. Keep chain properly tensioned at all times.
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FUEL AND LUBRICANT
FUEL STATEMENT
GASOLINE - Use 89 Octane [(R+M)/2] (mid grade
or higher) gasoline or gasohol known to be good
WARNING
Alternative fuels, such as E-20 (20 %
ethanol), E-85 (85 % ethanol) or any fuels not
meeting above requirements are NOT
approved for use in ECHO 2-stroke gasoline
engines.
quality.
Gasohol may contain up to 10 % Ethyl (grain)
alcohol or 15 % MTBE (methyl teriary-butyl ether).
Gasohol containing methyl (wood) alcohol is NOT
approved.
Use of alternative fuels may cause
performance problems, loss of power,
overheating, fuel vapor lock, and unintended
machine operation, including, but not limited
to, improper clutch engagement.
Alternative fuels may also cause premature
deterioration of fuel lines, gaskets,
carburetor and other engine components.
TWO-STROKE OIL - A two-stroke engine oil
meeting ISO-L-EGD (ISO/CD 13738) and JASO
M345-FC/FD Standards must be used. ECHO
brand premium Power Blend X™ Universal 2-
Stroke Oil meets these standards. Engine problems
due to inadequate lubrication caused by failure to
use an ISO-L-EGD (ISO/CD 13738) and JASO
M345-FC/FD certified oil, such as ECHO premium
Power Blend X™, will void the two-stroke engine
warranty.
Fuel Mix Chart 50 : 1
US.
METRIC
Gasoline
Gasoline
Gallons
Oil
Oil
US. fl. oz.
L
mL
1
2
5
2.6
5.2
12.8
4
8
20
80
160
400
IMPORTANT
• ECHO premium Power Blend X™ Universal 2-
Stroke Oil may be mixed at 50 : 1 ratio for
application in all ECHO engines sold in the past
regardless of ratio specified in those manuals.
• Use of unmixed, improperly mixed, or fuel older
than 90 days, (stale fuel), may cause hard
starting, poor performance, or severe engine
damage and void the product warranty. Read
and follow instructions in the Storage section of
this manual.
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HANDLING FUEL
MIXING INSTRUCTIONS -
1. Fill an approved fuel container with half of the
DANGER
Fuel is VERY flammable. Use extreme care
when mixing, storing or handling or serious
personal injury may result.
• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow flames or sparks near fuel.
• Fuel tanks/cans may be under pressure.
Always loosen fuel caps slowly allowing
pressure to equalize.
required amount of gasoline.
2. Add the proper amount of two-stroke oil to
gasoline.
3. Close container and shake to mix oil with
gasoline.
4. Add remaining gasoline, close fuel container,
and remix.
• NEVER refuel a unit when the engine is
HOT!
• NEVER refuel a unit with the engine
running.
• DO NOT fill fuel tanks indoors.
ALWAYS fill fuel tanks outdoors over bare
ground.
• Securely tighten fuel cap after refueling.
• Inspect for fuel leakage.
If fuel leakage is found, do not start or
operate unit until leakage is repaired.
• Move at least 3 m (10 feet) from refueling
location before starting the engine.
IMPORTANT
• Spilled fuel is a leading cause of hydrocarbon
emissions. Some states may require the use of
automatic fuel shut-off containers to reduce fuel
spillage.
• Stored fuel ages.
Do not mix more fuel than you expect to use in
thirty (30) days, ninety (90) days when a fuel
stabilizer is added.
• Stored two-stroke fuel may separate. ALWAYS
shake fuel container thoroughly before each
use.
AFTER USE -
DO NOT store a unit with fuel in its tank. Leaks can
occur. Return unused fuel to an approved fuel
storage container.
STORAGE -
Fuel storage laws vary by locality. Contact your
local government for the laws affecting your area.
As a precaution, store fuel in an approved, airtight
container. Store in a well-ventilated, unoccupied
building, away from sparks and flames.
EMISSION DATA
EMISSION CONTROL
PRODUCT EMISSION DURABILITY
(EMISSION COMPLIANCE PERIOD)
The 300 hours emission compliance period is
(EXHAUST and EVAPORATIVE) EPA 2010 and/
or C.A.R.B. TIER III
the time span selected by the manufacturer
certifying the engine emissions output meets
applicable emissions regulations, provided that
approved maintenance procedures are followed
as listed in the Maintenance Section of this
manual.
The emission control system for the engine is EM/
TWC (Engine Modification and 3-way Catalyst) and
for the fuel tank the Control System is EVAP
(Evaporative Emissions) or N (for nylon tank).
Evaporative emission may be applicable to
California models only.
EMISSION CONTROL INFORMATION
ENGINE FAMILY: #EHXS.0274EA DISPLACEMENT: 26.9cc
EMISSION COMPLIANCE PERIOD: 300Hours
THIS ENGINE MEETS * * * * U.S.EPA EXH/EVP AND CALIFORNIA
EXH AND EVP EMISSION REGULATIONS FOR S.O.R.E.REFERTO OWNER’S
MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
An Emission Control Label is located on the
engine. (This is an example only, information on
label varies by engine family).
* * * ? ? ? ?
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CHAIN LUBRICANT
Proper lubrication of the chain while in operation
reduces friction between the chain and the guide
bar to a minimum and assures a longer service life.
Cap indication
Oil/fuel tanks are indicated by the following
illustrations on the caps.
• Use bar and chain oil of high quality for this
purpose.
• Do not use used or reclaimed oil to avoid various
oiler problems.
• Use ECHO bar and chain oil.
• When ECHO bar and chain oil is not available:
Use motor oil, etc.
• Use bar and chain oil of the following grades:
SAE No. 30 .......in summer
Oil tank cap
Fuel tank cap
SAE No. 10 .......in winter or when cutting
resinous trees.
• When refueling, also refill chain oil.
OPERATION
Chain brake
WARNING
• After choke control knob is turned and then
knob is returned to original 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.
Start / Run
Ignition switch
CAUTION
• After starting the engine, squeeze throttle
trigger slightly to release throttle latch and
pull front hand guard towards the operator
immediately.
Purge pump
(Chain brake unlocked position)
• Never use throttle latch for cutting.
Choke control knob
Starter handle
Choke
• Use the chain brake only in starting or in
emergencies.
Unlock chain brake
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WHEN THE ENGINE IS COLD
Chain brake
CAUTION
Make sure the bar and chain are free from
any obstruction when starting the chain saw.
• Move chain brake lever fully forward to lock chain
brake before starting.
Start / Run
Ignition switch
• Fill the fuel tank with fuel mixture.
It is not permitted to fill fuel above the shoulder
level of fuel tank.
Purge pump
• Fill the chain oil tank with lubricant.
Do not over fill.
• Move ignition switch to “RUN” position.
• Push purge pump 3 to 4 times or until fuel is
visible in purge pump.
Choke control knob
Starter handle
• Turn choke control knob counterclockwise.
Choke
(Choke position
)
• Securely hold the chain saw as shown.
When starting the chain saw place the unit on a
flat ground and hold the front handle with left
hand and hold firmly the rear end of rear handle
with right knee and pull starter handle with right
hand several times until first firing sound.
• Turn choke control knob clockwise. (Open
position
)
• Pull starter handle to start the engine.
Unlock chain brake
Chain brake
• When engine starts, immediately squeeze
throttle trigger, to release throttle latch, and pull
front hand guard towards the operator
immediately. (Chain brake unlocked position)
WHEN THE ENGINE IS WARM
CAUTION
Make sure the bar and chain are free from
any obstruction when starting the chain saw.
• Move chain brake lever fully forward to lock chain
brake before starting.
• Confirm there is fuel and chain oil in the tanks.
• Move ignition switch to “RUN” position.
Choke control knob
Open choke
• Securely hold the chain saw as shown and pull
starter handle.
• Choke may be used if necessary, but after first
firing sound, pull throttle trigger to release choke.
Unlock chain brake
• After starting the engine, pull front hand guard
towards the operator immediately. (Chain brake
unlocked position)
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RUNNING
• When engine starts, keep idling for a few
minutes.
Unlock chain brake
• Set the brake lever in the unlocked position
before starting to cut.
• Pull throttle trigger gradually and increase
revolution of the engine.
• The chain starts running when the engine
reaches 4400 r/min approximately.
• Confirm proper acceleration and lubrication of
chain and bar.
• Do not run the engine at high speed
unnecessarily.
• Be sure that saw chain stops moving when
throttle trigger is released.
STOPPING
• Release throttle trigger and place ignition switch
STOP
in STOP position.
Ignition switch
Throttle trigger
NOTE
If engine does not stop, turn choke control knob
counterclockwise to stop engine.
Return the unit to your authorized ECHO dealer
to check and repair stop switch before starting
the engine again.
CHECKING CHAIN TENSION
• Chain tension should be checked frequently
during work and corrected as necessary.
• Tension the chain as tight as possible, but so it
can still be pulled easily along the bar by hand.
CAUTION
Do not operate with a loose chain.
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.
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CUTTING INSTRUCTION
GENERAL
CAUTION
• Read the ECHO “CHAIN SAW SAFETY
MANUAL” included with your chain saw for
additional cutting and safety instructions.
• Wear suitable hearing protection such as
earmuffs or earplugs to protect against
objectionable or uncomfortable loud noises.
• Do not let the tip of the bar touch anything
while the engine is running.
At cutting speed the chain is moving at a
high rate of speed.
Should the tip contact a limb or log while
the chain is moving, the tip will be pushed
upward with considerable force.
This is known as kickback. Avoid it!
In all circumstances the operation of the chain saw
is a one-man job.
Kickback
It is difficult at times to take care for 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
handlebar and your right hand on the rear 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.
Become thoroughly familiar with the controls and
the responses of the saw.
Start the engine, see that it is running properly.
Squeeze the trigger to open the throttle wide open
and start the cut. If the chain is properly sharpened,
the cutting should be relatively effortless.
It is not necessary to press down hard to make the
saw cut.
Pushing the saw too hard will slow the engine and
cutting will actually be more difficult.
Some material may adversely affect the housings
of your chain saw.
(Example palm Tree Acid, fertilizer etc.)
To avoid housing deterioration, carefully remove all
packed sawdust around clutch and guide bar area
and wash with water. Coat metal parts with light oil.
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FELLING THE 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.
3 m (10 feet)
45°
Retreat
Direction of fall
45°
Next, select a path of retreat.
Retreat
Not this way
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 (10 feet) 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.
Cut a notch about 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 and at a level about 5 cm (2 in.) above the
bottom of the notch.
Direction of fall
Hinge
5 cm (2 in.)
First cut
Felling cut
Do not try to cut through to the notch with the felling
cut.
Notch
The remaining wood between the notch cut and
felling cut about 5 cm (2 in.) will act as a hinge
when the tree falls, guiding it in the desired
direction.
5 cm (2 in.)
Second cut
When the tree starts to fall, kill the engine, place
the saw on the ground and make your retreat
quickly.
One-third tree diameter
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, 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.
3
2
1
The final cut is made by drawing the saw forward in
the cut to reach the hinge.
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LIMBING
Limbing a fallen tree is much the same as bucking.
Never stand on the tree that you are limbing.
When limbing, caution is the word.
Be careful of the tip touching other limbs.
Always use both hands.
Don’t cut with the saw overhead or aligned
vertically with your body. If the saw should
kickback, you may not have enough control to
prevent possible injury.
BUCKING
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.
Uphill position
Keep in mind that the wood is heavy and that it will
bend and pinch the saw if improperly supported.
The trunk will weaken at the point where you make
the cut unless the tree is lying on perfectly flat
ground or supported as shown.
If you make the cut with the tree on the ground,
don’t let the saw’s chain dig into the earth; it is
harmful for the saw, and you stand a good chance
of being struck by flying debris.
To cut the trunk, use the bucking and two-cut
sequence shown.
Finish cut
First cut
The first cut should be no deeper than one-third the
trunk diameter.
Board or flat stones
DANGER
• Kickback is generated when the rotation of
the chain is arrested for some reason.
The most dangerous effect of this action
occurs when the nose of the bar contacts
another object, the chain is momentarily
stopped and all the energy of the engine
throws the bar upwards and backwards
towards the operator.
• The chain saw industry and government
agencies have attempted to prescribe
various safety devices, but the best
protection is to avoid kickback.
• Comply with the safety precautions as
listed in this Manual and Safety Manual.
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CHAIN BRAKE OPERATION
• Set the lever in the unlocked position before
starting to cut.
• If the brake is tripped by kickback reaction, the
chain will stop immediately. Release the throttle
to avoid possible damage to the engine or clutch.
Improper thrust cutting
• Do not attempt to operate the engine with the
brake locked.
TESTING THE BRAKE
• Start the engine on a solid level surface and run
at a fast idle until warm.
• Hold the saw firmly by the handles and
accelerate the engine to a fast idle.
• Slowly operate the chain brake lever while
holding the saw firmly on the ground.
When the brake lever trips, the chain should
stop.
When the bar nose hits another tree, etc.
Chain brake function
When the lever is pushed forward, chain brake
instantly stops the chain.
Immediately release the throttle trigger.
WARNING
If the chain does not stop immediately, return
the saw to your authorized ECHO dealer for
repair.
NOTE
• For practice, while cutting a small tree, push the
lever forward to lock the brake.
• Confirm that the brake works properly before
each use.
• If the chain brake is clogged with wood chips,
function of the brake may deteriorate. Always
keep the device clean.
Chain brake unlock
When the lever is fully pulled toward the
operator, brake is unlocked.
• Do not increase engine revolution while the
chain brake is locked.
• Use the chain brake only in starting or in
emergencies.
• When using throttle latch at starting, keep the
chain brake locked.
And after starting the engine, unlock the brake
immediately.
IMPORTANT
Do not allow the saw to tip forward in order to
avoid damage to the chain.
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AUTOMATIC CHAIN BRAKE
End of the guide bar may be placed at the
height of about 55 cm (22 in.).
Kickback produced from the tip of the guide bar will
trip the automatic chain brake. To make sure that
the automatic chain brake operates properly, follow
these steps:
1. Stop the engine.
2. Hold the saw with the guide bar approximately
55 cm (22 in.) above a wooden surface. Right
hand should hold the rear handle, and left hand
should hold the front handle.
55 cm
(22 in.)
3. Release the front handle and drop the end of the
guide bar against the wooden surface.
4. The impact should lock the chain brake.
IMPORTANT
When checking the operation of the automatic
chain brake, use a soft surface substance like
wood to provide the impact so the chain is not
damaged.
Rear handle should be gripped lightly with the
right hand.
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CHAIN AND GUIDE BAR COMBINATION
The following combinations are recommended for model CS-271T.
Guide bar
Saw chain
Part No.
Length mm (in)
254 (10)
Part No.
Pitch mm (in)
9.53 (3/8)
Links
40
10A4CD3740
10A0CD3740
90SG40CQ
91VG40CQ
12A4CD3745
12A0CD3745
90SG45CQ
91VG45CQ
305 (12)
9.53 (3/8)
45
GUIDE BAR
(Low-kickback)
Replacement guide bars.
The following guide bars may be considered to
have equivalent kickback energy.
• Sprocket nose guide bars of the same length
and nose radius, same pitch and having the
same number of teeth.
• Hard nose guide bars of the same length and
nose radius as a sprocket nose bar.
SAW CHAIN
(Low-kickback)
CAUTION
Do not use replacement saw chain unless it
has been designated as meeting the ANSI
B175.1 - 2000 kickback performance
requirements, when tested on the
representative sample of chain saws below
3.8 c.i.d. specified in ANSI B175.1 - 2000.
NOTE
LOW KICKBACK SAW CHAIN meets the
kickback performance requirements of ANSI
B175.1-2000 (safety requirements for gasoline-
powered chain saws).
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MAINTENANCE AND CARE
Your ECHO chain saw is designed to provide many
SKILL LEVELS
hours of trouble free service. Regular scheduled
maintenance will help your chain saw achieve that
goal. If you are unsure or are not equipped with the
necessary tools, you may want to take your unit to
an ECHO Service Dealer for maintenance. To help
you decide whether you want to DO-IT-YOURSELF
or have the ECHO Dealer do it, each maintenance
task has been graded. If the task is not listed ask
your ECHO dealer for repairs.
Level 1 = Easy to do. Most required tools come
with unit.
Level 2 = Moderate difficulty. Some specialized
tools may be required.
ECHO offers REPOWER™ Maintenance Kits and
Parts to make your maintenance job easier. Just
below each task heading are listed the various part
numbers required for that task. Ask your ECHO
dealer for these parts.
MAINTENANCE INTERVALS
Component/system
Air Filter
Maintenance procedure
Inspect/Clean/Replace
Inspect/Adjust
1
1
1
1
1
1
1
I/C*
R*
Automatic Oiler
Oil Filter
I
I
Inspect/Clean/Replace
Inspect/Replace
I/C*
Fuel System
Fuel Filter
I (1)*
I (1)*
Inspect/Replace
I*
I*
I/R*
R*
Fuel Cap Gasket
Inspect/Replace
Guide Bar and Sprocket Nose Inspect/Clean/Lubricate
I/C*
I*
I
Inspect/Sharpen/Replace/
Saw Chain
Tensioning
2
Sprocket
Inspect/Replace
2
1
2
2
2
1
1
I*
Spark Plug
Inspect/Clean/Replace
Inspect/Clean
I/C/R*
Cooling System
Muffler Spark Arrestor
Cylinder Exhaust Port
Recoil Starter Rope
Screws/Nuts/Bolts
I/C
Inspect/Clean/Replace
Inspect/Clean/Decarbon
Inspect/Clean
I/C/R*
I/C
I/C*
I*
Inspect/Tighten/Replace
Meintenance Procedure Letter Codes:
I = Inspect
IMPORTANT
Time intervals shown are maximum.
C = Clean
R = Replace
Meintenance Procedure Notes:
(1)= Low evaporative fuel tanks DO NOT require
regular maintenance to maintain emission
integrity.
Actual use and your experience will determine
the frequency of required maintenance.
* = All recommendations to replace are based
on the finding of damage or wear during
inspection.
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CARBURETOR ADJUSTMENT
Idle adjusting screw
Every unit is run at the factory and the carburetor is
set in compliance with Emission Regulations. In
addition, the carburetor is equipped with “H” (High
Speed) and “L” (Low Speed) needle adjustment
limiters that prevent settings outside acceptable
limits.
1. Before adjusting carburetor clean or replace air
filter and muffler “Spark Arrestor Screen”.
2. Make sure the bar and chain are properly
adjusted.
3. Start engine and run several minutes to bring to
operating temperature. Flash choke twice during
warm-up to clear any air from the fuel system.
4. Stop engine.
Low speed needle (L)
High speed needle (H)
Turn “H” speed needle counterclockwise (CCW)
to stop.
Turn “L” speed needle midway between full
clockwise (CW) stop and CCW stop.
5. Idle Speed Adjustment:
• Start engine, turn “Idle” speed adjustment
screw CW until the saw chain begins to turn,
then turn screw out CCW until the saw chain
stops turning.
Turn screw out, CCW, an additional ½ turn.
WARNING
Cutting attachment must not move when unit
is idling.
6. Accelerate to full throttle for 2 - 3 seconds to
clear any excess fuel in the engine, then return
to idle.
Accelerate engine to full throttle to check for
smooth transition from idle to high speed.
If engine hesitates turn “L” needle CCW 1/8 turn
and repeat acceleration.
Continue adjustment until smooth acceleration
results.
7. Check idle speed and reset if necessary as
described in item 5. If a tachometer is available
idle speed should be set to 2800 - 3600 r/min.
High Altitude Operation
This engine has been factory adjusted to maintain
satisfactory starting, emission, and durability
performance up to 1100 feet above sea level (ASL)
(96.0 kPa). To maintain proper engine operation
and emission compliance above 1100 feet ASL the
carburetor may need to be adjusted by an
authorized ECHO service dealer.
CAUTION
When starting, idling adjustment speed
should be adjusted not to rotate the saw
chain. Correct idle speed is adjusted 2800 to
3600 r/min. Or ½ turn CCW from the point the
chain stops moving.
IMPORTANT
If the engine is adjusted for operation above
1100 feet ASL, the carburetor must be
readjusted when operating the engine below
1100 feet ASL, otherwise severe engine damage
may result.
When you experience trouble with the
carburetor, contact your dealer.
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AIR FILTER
• Check before every use.
Air filter
Air cleaner cover
• Close choke ( ).
• Turn cleaner cover knob counterclockwise by
hand and remove air cleaner cover and air filter.
• Brush off dust lightly, or clean with compressed
air, or replace the air filter.
Cleaner cover knob
• Reinstall air filter and cover.
CHECK FUEL SYSTM
• Check before every use.
• After refueling, make sure fuel does not leak
from around fuel pipe, fuel grommet or fuel tank
cap.
• In case of fuel leakage there is a danger of fire.
Stop using the machine immediately and request
your dealer to inspect or replace.
SPARK PLUG
• Check periodically.
• The standard spark gap is 0.65 mm
(0.026 in.).
• Correct the spark gap if it is wider or
narrower than the standard gap.
• Fastening torque: 15 to 17 N·m
(130 to 145 in. lb.).
0.65 mm (0.026 in.)
FUEL FILTER
• Check periodically.
• Do not allow dust to enter fuel tank.
• A clogged filter will cause difficulty in starting
engine or abnormalities in engine performance.
• Pull the fuel filter out through fuel inlet port with a
piece of steel wire or the like.
Fuel tank cap
• When the filter is dirty, replace it.
Fuel filter
• When the inside of the fuel tank is dirty, rinsing
the tank out with gasoline can clean it.
OIL FILTER
• Check periodically.
• Do not allow dust to enter into oil tank.
• A clogged oil filter will affect the normal
lubricating system.
Oil tank cap
• Pull it out through oil filling hole with a piece of
steel wire or the like.
Oil filter
• If the filter is dirty, wash it in gasoline or replace
it.
• When the inside of the tank gets dirty, rinsing the
tank out with gasoline can clean it.
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GUIDE BAR
• Clean before using.
- Clean the groove of the guide bar with a small
screwdriver.
Groove
Oil hole
- Clean oil holes with a wire.
• Reverse guide bar periodically.
• Check sprocket and the clutch and clean the bar
mount area before installation of the bar.
Replace either or both if worn.
Sprocket
SPROCKET
Worn : 0.5 mm (0.02 i
• A damaged sprocket will cause premature
damage or wear of saw chain.
- When the sprocket has worn out 0.5 mm (0.02
in.) or more, replace it.
• Check sprocket when you install new chain.
Replace it if worn.
CYLINDER FINS
• Check periodically.
Cylinder fins
• Clogged fins will result in poor engine cooling.
• Remove dirt and dust from between fins to let
cooling air pass easily.
MUFFLER SPARK ARRESTOR
• Remove air cleaner cover and remove spark
plug lead.
Muffler
• Remove spark arrestor screen cover and screen
from muffler body.
Spark arrestor screen
Gasket
• Clean carbon deposits from muffler components.
Screen cover
• Replace screen if it is cracked, or has holes
burned through.
• Inspect the gasket, replace if damaged.
• Assemble components in reverse order.
NOTE
Carbon deposits in muffler will cause drop in
engine output. Spark arrestor screen must be
checked periodically.
Adjusting screw
AUTOMATIC OILER
• The discharge volume of the automatic oiler is
adjusted to 7 mL/min approximately at 7000 r/min,
prior to shipment from factory.
- To increase the delivery volume, turn the
adjusting screw counterclockwise.
Decrease Increase
When the screw touches stopper and stops,
this position indicates maximum discharge
volume. (13 mL/min at 7000 r/min)
- Do not turn the adjusting screw beyond the
maximum or minimum limit of volume
adjustment.
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SETTING THE SAW CHAIN
Preset tie strap
Left hand cutter
Drive link
Top plate
Tie strap
Side plate
Depth guage
Guard link
Right hand cutter
Important points for proper maintenance of saw
chain:
• Keep the cutters sharp at all times.
• Keep the left and the right cutters properly
aligned.
- Note that blunt or irregular cutters will result in
poor cutting performance, increased vibration
of chains and premature breakage of the saw
chain.
• Drive link serves to remove sawdust from the
groove of the guide bar.
Sharpen lower edge
Keep the lower edge of the drive link sharp
where indicated.
SETTING SAW CHAIN
• For setting saw chain, round file (90SG: 4.5 mm
dia. or 91VG: 4.0 mm dia. 5/32 in.) and flat file
are used.
30°
• To keep correct position and correct angle,
use the file holder (Sure Sharp®).
Keep this angle
Push file as shown
90°
Hold the file horizontally
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1/5
One fifth of file diameter remains
above cutter edge
• Place the depth gauge tool firmly on guide
bar so that depth gauge protrudes.
Depth gauge tool
Then file top of depth gauge with the flat file until
flat with top of the depth gauge tool.
Remove until
flat with tool
- Be sure to round off the front edge of the depth
gauge.
Round off
the edge
Properly filed cutters are shown in illustration.
80°
When setting of the chain is finished, soak it in oil
and wash away filings completely before using.
- When chain has been filed on the bar, supply
sufficient oil to it, rotate the chain slowly to wash
away the filings before using again.
- If the chain saw is operated with filings clogged
in the groove, the saw chain and the guide bar
will be damaged prematurely.
30°
Top plate filing angle
- If the saw chain becomes soiled with resin, for
instance, clean it with kerosene and soak in it oil.
90SG : 0.51 mm
(0.020 in.)
91VG : 0.64 mm
(0.025 in.)
90SG:50°
91VG:60°
NOTE
These angles are referred to as Oregon 90SG or
91VG.
To sharpen other follow chain manufacturer’s
instruction.
Top plate cutting angle
Parallel
Depth gauge
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TROUBLESHOOTING
Problem
Engine
— hard to start
Cause
Remedy
— does not start
Engine
cranks
Fuel at
carburetor
No fuel
at carburetor
• Fuel filter clogged
• Fuel line clogged
• Carburetor
• Clean or replace
• Clean
• Ask your ECHO dealer
Fuel at
cylinder
No fuel at
cylinder
• Carburetor
• Ask your ECHO dealer
Muffler wet
with fuel
• Fuel mixture is too rich
• Open choke
• Clean/replace air filter
• Adjust carburetor
• Ask your ECHO dealer
Spark at
end of
plug wire
No spark at
end of plug
wire
• Ignition switch off
• Electrical problem
• Turn switch on
• Ask your ECHO dealer
• Spark gap incorrect
• Adjust 0.6 mm to 0.7 mm
(0.024 to 0.028 in.)
• Clean or replace
• Clean or replace
• Replace plug
Spark at
plug
No spark at
plug
• Covered with carbon
• Fouled with fuel
• Spark plug defective
Engine
does not
crank
• Internal engine problem
• Ask your ECHO dealer
Engine
runs
Dies or
accelerates poorly
• Air filter dirty
• Fuel filter dirty
• Fuel vent blocked
• Spark plug
• Carburetor
• Clean or replace
• Clean or replace
• Clean
• Clean and adjust/replace
• Adjust
• Cooling system blocked
• Exhaust port/spark
arrestor screen blocked
• Clean
• Clean
WARNING
Fuel vapors are extremely flammable and
may cause fire and/or explosion. Never test
for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious
personal injury may result.
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STORAGE AFTER USE
• Inspect and adjust every part of the chain saw.
WARNING
Do not store in an enclosure where fuel
fumes may accumlate or reach an open flame
or spark.
- Completely clean every part and repair if
necessary.
- Apply thin coating of oil on metal parts to
prevent rust.
• Remove chain and guide bar.
• Drain fuel tank, pull starter slowly a few times to
drain fuel from carburetor.
• Pour a small amount of clean motor oil into spark
plug hole, pull starter and crank the engine until
piston reaches:TOP DEAD CENTER.
• Store in a dry area, free from dust.
CAUTION
Do not lend or rent your chain saw without
the Instruction manual and Safety manual.
NOTE
• For future reference, you should keep this
Instruction manual and the Safety manual.
• If this Instruction manual or the Safety manual
has become illegible or is lost, please purchase
a new one from your ECHO dealer.
TECHNICAL DATA
MODEL
CS-271T
Dimension
Mass
L × W × H
mm
kg
257 × 228 × 210 (10.1 in. × 8.98 in. × 8.27 in.)
3.0 (6.61 lb.) Without chain and guide bar
Air-cooled two-stroke single cylinder
Power head, dry
Type
Engine
Displacement
mL (cm³) 26.9 (1.64 cu. in.)
Carburetor
Magneto
Diaphragm type
Flywheel magneto: CDI system
Spark plug
Starter
NGK BPM8Y
Recoil starter
Power transmission
Automatic centrifugal clutch
Fuel
Mixture ratio
50 : 1 ratio with ECHO Power Blend X™, ISO-L- EGD
(ISO/CD 13738) and JASO M345-FC/FD two-stroke,
air-cooled engine oil.
Gasoline
Use 89 octane unleaded.
Do not use fuel containing methyl alcohol, more than
10 % ethyl alcohol or 15 % MTBE.
Do not use alternative fuels such as E-20 or E-85.
Tank capacity
Bar and chain
Tank capacity
L
L
0.24 (8.12 US. fl. oz.)
Oil
ECHO bar and chain oil (or motor oil)
0.16 (5.41 US. fl. oz.)
Guide bar and
saw chain
See page 22 for Chain and Guide Bar Combination
Adjustable automatic oil pump
Lubrication
Engine speed Idle
Clutch engagement
Wide open throttle
r/min
r/min
r/min
2800 - 3600
4250 - 4750
11300 - 12500
Standard
Front hand guard, Anti-vibration device,
Throttle control lockout, Chain brake, Chain catcher,
Spark arrestor muffler, Kick guard,
(Spiked bumper; option)
* Technical data subject to change without notice.
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WARRANTY STATEMENTS
ECHO LIMITED WARRANTY STATEMENT FOR
PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010
ECHO’S RESPONSIBILITY
ECHO Incorporated’s Limited Warranty, provides to the original purchaser that this ECHO product is free from defects in material
and workmanship. Under normal use and maintenance from date of purchase, ECHO agrees to repair or replace at ECHO’s
discretion, any defective product free of charge at any authorized ECHO servicing dealer within listed below application time
periods, limitations and exclusions. THIS LIMITED WARRANTY IS ONLY APPLICABLE TO ECHO PRODUCTS SOLD BY
AUTHORIZED ECHO DEALERS. IT IS EXTENDED TO THE ORIGINAL PURCHASER ONLY, AND IS NOT TRANSFERABLE
TO SUBSEQUENT OWNERS EXCEPT FOR EMISSION RELATED PARTS. Repair parts and accessories replaced under this
warranty are warranted only for the balance of the original unit or accessory warranty period. Any damage caused by improper
installation or improper maintenance is not covered by this warranty. All parts or products replaced under warranty become the
property of ECHO, Inc. This warranty is separate from the Emission Control Warranty Statement supplied with your new product.
Please consult the Emission Control Warranty Statement for details regarding emission related parts. For a list of Authorized
ECHO Dealers refer to WWW.ECHO-USA.COM or call 1-800-432-ECHO.
OWNER’S RESPONSIBILITY
To ensure trouble free warranty coverage it is important that you register your ECHO equipment on-line at WWW.ECHO-USA.COM
or by filling out the warranty registration card supplied with your unit. Registering your product confirms your warranty coverage
and provides a direct link if we find it necessary to contact you.
The owner shall demonstrate reasonable care and use, and follow preventative maintenance, storage, fuel and oil usage as
prescribed in the operator’s manual. Should a product difficulty occur, you must, at your expense, deliver or ship your ECHO unit to
an authorized ECHO servicing dealer for warranty repairs (within the applicable warranty period), and arrange for pick-up or return
of your unit after the repairs have been made. For your nearest authorized ECHO servicing dealer, call ECHO’s Dealer Referral
Center, at 1-800-432-ECHO or you can locate an ECHO servicing dealer at WWW.ECHO-USA.COM. Should you require
assistance or have questions concerning ECHO’s Warranty Statement, you can contact our Consumer Product Support
Department at 1-800-673-1558 or contact us through the web at WWW.ECHO-USA.COM.
PRODUCT WARRANTY PERIOD
RESIDENTIAL APPLICATION
• 5 YEAR WARRANTY - All units for residential, or non-income producing use will be covered by this limited warranty for five (5)
years from date of purchase.
EXCEPTIONS:
• For two-stroke engine powered products, the electronic ignition module, flexible drive cables, SRM solid drive shafts, and TC
tines are warranted for the life* of the product on parts only.
• Cutting attachments such as, but not limited to, bars, chains, sprockets, blades, and nylon trimmer heads for residential or non-
income producing use will be covered for failures due to defects in material or workmanship for a period of 60 days from
original product purchase date. Any misuse from contact with concrete, rocks, or other structures is not covered by this
warranty.
• ECHO’s Rapid Loader String Head carries a lifetime warranty on the line locking system, parts only; no labor. Refer to your
operator’s manual for string head installation and maintenance instructions.
• All SB-Series and PRO ATTACHMENT SERIES Split Shaft attachments carry the same warranty duration as the units they are
designed to fit.
COMMERCIAL APPLICATION
• 1 YEAR WARRANTY - All Chain Saws, QuikVent Saws, and Cut-Off Saws for commercial, institutional, agricultural, industrial, or
income producing use will be covered by this limited warranty for a period of one (1) year from the date of purchase.
• 2 YEAR WARRANTY - All other units for commercial, institutional, agricultural, industrial, or income producing use will be
covered by this limited warranty for a period of two (2) years from the date of purchase.
EXCEPTIONS:
• For two-stroke engine powered products, the electronic ignition module, flexible drive cables, SRM solid drive shafts and TC
tines, are warranted for the life* of the product on parts only.
• Cutting attachments such as, but not limited to, bars, chains, sprockets, blades, and nylon trimmer heads for commercial,
institutional, agricultural, industrial, rental, or income producing will be covered for failures due to defects in material or
workmanship for a period of 30 days from original product purchase date. Any misuse from contact with concrete, rocks, or
other structures is not covered by this warranty.
• ECHO’s Rapid Loader String Head carries a lifetime warranty on the line locking system, parts only; no labor. Refer to your
operator’s manual for string head installation and maintenance instructions.
• All SB-Series and PRO ATTACHMENT SERIES Split Shaft attachments carry the same warranty duration as the units they are
designed to fit.
RENTAL APPLICATION - 90 DAYS WARRANTY
• Units for rental use will be covered against defects in material and workmanship for a period of 90 days from the date of
purchase.
* ECHO’s liability under the “Lifetime” coverage is limited to furnishing parts specified under the PRODUCT WARRANTY PERIOD
section of this Warranty Statement for “Life” free of charge for a period of ten (10) years after the date of the complete unit’s final
production.
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PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES
• 90-day residential, or non-income producing warranty
• 30-day commercial, institutional, agricultural, industrial, income producing, or rental application warranty
ATTENTION TWO-STROKE ENGINE POWER PRODUCT OWNERS
This ECHO two-stroke engine power product is a quality-engineered unit which has been manufactured to exact tolerances to
provide superior performance. To help ensure the performance of the unit, it is required to use two-stroke oil which meets the ISO-
L-EGD Standard per ISO/CD 13738 and JASO M345-FC/FD Standards. ECHO Power Blend X™ Two-Stroke Oil is a premium
two-stroke oil specifically formulated to meet ISO-L-EGD (ISO/CD 13738) and JASO M345-FC/FD Standards. The use of two-
stroke oils designed for other applications, such as for outboard motors or lawnmowers can result in severe engine damage, and
will void your two-stroke engine limited warranty.
THIS WARANTY DOES NOT COVER DAMAGE CAUSED BY:
• Lack of lubrication or engine failure, due to the use of two-stroke oils that do not meet the ISO-L-EGD (ISO/CD 13738) and JASO
M345-FC/FD Standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD compliant and
JASO M345-FC/FD registered oil, will void the two-stroke engine limited warranty. ECHO Power Blend X™ Two-Stroke Oil meets
the ISO-L-EGD and JASO M345-FC/FD Standard. Emission related parts are covered for 5 years residential use or 2 years
commercial use regardless of two-stroke oil used, per the statement listed in the EPA or California Emission Defect Warranty
Explanation.
• Damage caused by use of gasohol, containing methanol (wood alcohol), or gasoline containing less than 89 octane. Only use
gasoline which contains 89 octane or higher. Gasohol which contains a maximum 10 % ethanol (grain alcohol) or 15 % MTBE
(methyl/tertiary/butyl/ether) is also approved. The prescribed mixing ratio of gasoline to oil is listed on the ECHO oil label and
covered in your operator’s manual.
• Engine damage caused by use of ether or any starting fluids.
• Damage caused by tampering with engine speed governor or emission components, or running engines above specified and
recommended engine speeds as listed in your operator’s manual.
• Operation of the unit with improperly maintained/removed cutting shield or removed/damaged air filter.
• Damage caused by dirt, pressure or steam cleaning the unit, salt water, corrosion, rust, varnish, abrasives, and moisture.
• Defects, malfunctions or failures resulting from abuse, misuse, neglect, modifications, alterations, normal wear, improper
servicing, or use of unauthorized attachments.
• Incorrect storage procedures, stale fuel, including failure to provide or perform required maintenance services as prescribed in
the operator’s manual. Preventative maintenance as outlined in the operator’s manual is the customer’s responsibility.
• Failures due to improper set-up, pre-delivery service or repair service by anyone other than authorized ECHO servicing dealer
during the warranty period.
• Certain parts and other items are not warranted, including but not limited to: lubricants, starter cords, and engine tune-ups.
• Use of spark plugs other than those meeting performance and durability requirements of the OEM spark plug listed in the
Operator’s Manuals.
• Overheating or carbon scoring failures due to restricted, clogged exhaust port or combustion chamber, including damage to spark
arrester screen.
• Adjustments after the first (30) thirty days and beyond, such as carburetor adjustment and throttle cable adjustment.
• Damage to gears or gear cases caused by contaminated grease or oil, use of incorrect type or viscosity of lubricants, and/or
failure to comply with recommended grease or oil change intervals.
• Damage caused by loading SHRED ‘N’ VAC® beyond recommended capacity.
• Damage caused by pump or sprayer running dry, pumping or spraying caustic or flammable materials, or lack of or broken
strainers.
• Additional damage to parts or components due to continued use after operational problem or failure occurs. Should operational
problem or failure occur, the product should not be used, but delivered as is to an authorized ECHO servicing dealer.
It is a dealer’s and/or customer’s responsibility to complete and return the warranty registration card supplied with your ECHO
product or by visiting WWW.ECHO-USA.COM. Your receipt of purchase including date, model and serial number must be
maintained and presented to an authorized ECHO servicing dealer for warranty service. Proof of purchase rests solely with the
customer. Some states do not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to
you. Some states do not allow the exclusion or limitation of incidental or consequential damages, so you may also have other
specific legal rights which vary from state to state. This limited warranty is given by ECHO Incorporated, 400 Oakwood Rd., Lake
Zurich, IL 60047.
DISCLAIMER OF IMPLIED WARANTIES
This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of FITNESS FOR A
PARTICULAR PURPOSE OR USE and any implied warranty of MERCHANTABILITY otherwise applicable to this product. ECHO
and its affiliated companies shall not be liable for any special incidental or consequential damage, including lost profits. There are
no warranties extended other than as provided herein. This limited warranty may be modified only by ECHO.
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ECHO INCORPORATED EMISSION CONTROL WARRANTY STATEMENT FOR ECHO BRAND
The Environmental Protection Agency (EPA) and the California Air Resources Board (C.A.R.B.) and ECHO Incorporated (ECHO
Inc.) are pleased to explain the emission control system warranty on your 2010 and later equipment/small off-road engine (SORE).
New equipment/SORE must be designed, built and equipped to meet stringent EPA and C.A.R.B. anti-smog standards. ECHO Inc.
must warrant the emission control system on your equipment/SORE for the periods of time listed below, provided there has been
no abuse, neglect or improper maintenance of your equipment/SORE. Your emission control system may include parts such as:
carburetor, fuel-injection system, ignition system, catalytic converter/muffler, fuel tank, fuel feed lines, fuel cap assembly, spark
plug, air filters, and other associated components. Where a warrantable condition exists, ECHO Inc. will repair your equipment/
SORE at no cost to you including diagnosis, parts and labor. The Emission Control System Warranty is extended to the original
owner including all subsequent owners.
MANUFACTURER’S WARRANTY COVERAGE:
The emission control system is warranted for 2 years or the length of the ECHO Inc. warranty, whichever is longer. If any emission-
related part on your equipment is defective, the part will be repaired or replaced by ECHO Inc. or its Authorized Service
Representative.
OWNER’S WARRANTY RESPONSIBILITIES:
As the equipment/SORE owner, you are responsible for the performance of the required maintenance listed in your Operator’s
Manual. ECHO Inc. recommends that you retain all receipts covering maintenance on your equipment/SORE however, ECHO Inc.
cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance. As
the equipment/SORE owner, you should be aware that ECHO Inc. may deny you warranty coverage if your equipment/SORE or a
part has failed due to abuse, neglect, improper maintenance or unapproved modifications.
You are responsible for presenting your equipment/SORE to an ECHO Inc. authorized service representative as soon as a
problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If a warrantable
condition exists and there is no Authorized Dealer within 100 miles, ECHO Inc. will pay to ship the unit to the nearest authorized
dealer. If you have questions regarding your warranty coverage, you should contact ECHO Inc. at 1-800-673-1558, web site
WWW.ECHO-USA.COM.
WHAT DOES THIS WARRANTY COVER?
ECHO Inc. warrants that your equipment/SORE was designed, built and equipped to conform with applicable EPA and C.A.R.B.
emissions standards and that your equipment/SORE is free from defects in material and workmanship that would cause it to fail to
conform with applicable requirements for 2 years or the length of the ECHO Inc. warranty, whichever is longer. The warranty period
begins on the date the product is purchased by an end user.
HOW WILL A COVERED PART BE CORRECTED?
If there is a defect in a part covered by this warranty, any ECHO Inc. Authorized Service Dealer will correct the defect. You will not
have to pay anything to have the part adjusted, repaired or replaced. This includes any labor and diagnosis for warranted repairs
performed by the dealer. In addition, engine parts not expressly covered under this warranty but whose failure is a result of a
failure of a covered part will be warranted.
WHAT PARTS ARE COVERED?
Any applicable emission related part not scheduled for “required maintenance” will be repaired or replaced within the warranty
period. The repaired or replaced part will be warranted for the remaining ECHO Inc. warranty period.
Any warranted part that is scheduled only for regular inspection in the written instructions supplied is warranted for the warranty
period stated above. Any such part repaired or replaced under warranty will be warranted for the remaining ECHO Inc. warranty
period.
Any emission related part scheduled for replacement during “required maintenance” is warranted for the period of time prior to the
first scheduled replacement point for that part. Any such part repaired or replaced under warranty shall be warranted for the
remainder of the period prior to the first scheduled replacement point for that part.
Any manufacturer-approved replacement part may be used in the performance of any warranty maintenance or repairs on
emission related parts, and must be provided without charge if the part is still under warranty.
Any replacement part that is equivalent in performance and durability may be used in non-warranty maintenance or repairs, and
shall not reduce the warranty obligations of the manufacturer.
Throughout the equipment/SORE warranty period, ECHO Inc. will maintain a supply of warranted parts sufficient to meet the
expected demand for such parts.
SPECIFIC EMISSION RELATED WARRANTED PARTS:
• Electronic Ignition System
• Catalytic Converter / Muffler Assembly
• Choke
• Spark Plug
• Carburetor (complete assembly or replaceable components)
• Fuel-Injection Assembly (or replaceable components)
• Fuel Cap Assembly
• Fuel Tank
• Air Filter
• Fuel Feed Line (and associated clamps/connectors as applicable)
WHAT IS NOT COVERED?
Any failure caused by abuse, neglect, improper maintenance, unapproved modifications, use of unapproved add-on parts/modified
parts or unapproved accessories.
This Emission Control Warranty is valid only for the U.S.A., it’s Territories, and Canada.
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