inSTruCTiOn manuaL
CHain Saw
CS-361P
WARNING
Read the instructions carefully and follow the rules for safe
operation.
Failure to do so could result in serious injury.
X750-025 96 0
X750 332-150 0
echo, incorporated
400 Oakwood Road, Lake Zurich, Illinois 60047-1564
Phone : 847-540-8400
1506G 0229 ESPrinted in Japan
Copyright
©
2015
All Rights Reserved.
The engine exhaust from this
product contains chemicals known
to the State of California to cause
cancer, birth defects or other
reproductive harm.
WARNING
1
CS-361P
RULES FOR SAFE OPERATION
A. Kickback Safety Precautions for Chain Saw Users
1. With a basic understanding of kickback,
you can reduce or eliminate the
element of surprise.
Sudden surprise contributes to
accidents.
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.
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.
4. Cut at high engine speeds.
5. Do not overreach or cut above shoulder
height.
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.
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.
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.
The Kick Guard
®
device is not installed
on the guide bar when you purchase your
ECHO chain 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.
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.
2
CS-361P
1. Do not operate a chain saw with one
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.
2. Do not operate a chain saw when you
are fatigued.
3. Use safety footwear, snug-fitting
clothing and protective gloves.
Wear eye, hearing, and head protection
devices.
4. Use caution when handling fuel.
Move the chain saw at least 3 m (10
feet) from the fueling point before
starting the engine.
5. Do not allow other persons to be near
the chain saw when starting or cutting
with the chain saw.
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.
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.
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.
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.
11. Shut off the engine before setting the
chain saw down.
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.
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.
14. Keep the handles dry, clean, and free
of oil or fuel mixture.
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.
17. All chain saw service, other than
items listed in the Instruction manual
maintenance instructions, should
be performed by competent service
personnel.
(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.)
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.
Do not operate the chain saw with a
loose or defective muffler.
Do not remove the spark arrestor
screen.
B. Other Safety Precautions
3
CS-361P
WARNING
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.
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.
NOTICE
This enclosed message provides tips for use,
care and maintenance of the unit.
IMPORTANT
The enclosed message provides information
necessary for the protection of the unit.
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.
SYMBOLS AND SIGNS
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 ..................................................................................................... 14
OPERATION ............................................................................................................ 15
CUTTING INSTRUCTION ........................................................................................ 18
CHAIN AND GUIDE BAR COMBINATION ............................................................... 23
MAINTENANCE AND CARE .................................................................................... 24
SETTING THE SAW CHAIN .................................................................................... 28
TROUBLESHOOTING ............................................................................................. 30
STORAGE AFTER USE ........................................................................................... 31
TECHNICAL DATA ................................................................................................... 32
WARRANTY STATEMENTS .................................................................................... 33
WARRANTY REGISTRATION SHEET .................................................................... 35
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.
CIRCLE AND SLASH SYMBOL
This symbol means the specific action
shown is prohibited. Ignoring these
prohibitions can result in serious or
fatal injury.
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CS-361P
SYMBOL FORM
DECALS
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.
Part Number X505-002310
Part Number X505-002062
WARNING
Chain brake must be unlocked before
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 desbloqueado
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 X505-006660
Part Number X524-005480
REPLACEMENT BAR AND CHAIN
GUIDE BAR CHAIN
PART NO. PART NO.
12” 12A0ES3745 91PXL45CQ
14” 14A0ES3752 91PXL52CQ
16” 16A0ES3757 91PXL57CQ
Note:
There may be other replacement
components for achieving kickback
protection. For details, please refer
to the chain and bar combination
sheet shown in the instruction manual.
Symbol form/shape Symbol description/application Symbol form/shape Symbol description/application
WARNING!!
Read and follow all safety
precaution in the instruction
manual. Failure to follow
instructions could result in
serious personal injury.
Choke control “Cold Start”
position (choke closed)
Wear eyes, ears and head
protection
Oil and gasoline mixture
Tip contact may cause the
guide bar to move suddenly
upward and backward, which
may cause serious injury
Chain oil fill
Contact of the guide bar tip
with any object should be
avoided
Chain oiler adjustment
Both of the operator’s hands
must be used to operate the
chain saw
Purge pump
Hot surface
L
Carburetor adjustment
- Low speed mixture
Chain brake operation
H
Carburetor adjustment
- High speed mixture
STOP
Emergency stop
T
Carburetor adjustment
- Idle speed
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CS-361P
PACKING LIST
The ECHO product you purchased has been
factory pre-assembled for your convenience.
Due to packaging restrictions, guide bar and saw
chain installation and other assembly may be
necessary.
After opening the carton, check for damage.
Immediately notify your retailer or ECHO dealer of
damaged or missing parts.
Use the packing list to check for missing parts.
10 x 19 mm T-wrench
Instruction manual Safety manual
ECHO chain saw
Saw chain
Guide bar
Kick Guard®
Warranty sheet
• •
• •
• •
• •
• •
6
CS-361P
NOMENCLATURE OF PARTS
* If a decal cannot be read, a new one can be
ordered from your ECHO dealer.
20
14
15
18
16
5
4
8
7
10
11
12
3
2
1
X524-005480
9
22
6
23
21
24
19
13
Part Number X505-006660
X505-006660
Part Number X505-002310
Part Number X505-002062
WARNING
Chain brake must be unlocked before
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 desbloqueado
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 X524-005480
REPLACEMENT BAR AND CHAIN
GUIDE BAR CHAIN
PART NO. PART NO.
12” 12A0ES3745 91PXL45CQ
14” 14A0ES3752 91PXL52CQ
16” 16A0ES3757 91PXL57CQ
Note:
There may be other replacement
components for achieving kickback
protection. For details, please refer
to the chain and bar combination
sheet shown in the instruction manual.
X505-002310
X505-002062
17
7
CS-361P
1. Instruction manual - Included with unit.
Read before operation and keep for future
reference to learn proper, safe operating
techniques.
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.
4. Choke control knob - Device for enriching the
fuel/air mixture in the carburetor to aid cold
starting. Also activates fast idle throttle latch.
5. Rear handle (for the right hand) - Support
handle located towards the rear of the
engine housing.
6. Rear hand guard - Extension on the lower part
of the rear handle for protecting the hand
from the chain if it breaks or degrooves.
7. Muffler cover - Cover the muffler not to make
operator touch to hot surface of muffler.
8. Clutch cover - Protective cover to the guide
bar, saw chain, clutch and sprocket when
the chain saw is in use.
9. Chain tension adjuster - Device to adjust
chain tension.
10. 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.
11. Guide bar - The part that supports and guides
the saw chain.
12. Saw chain - Chain, serving as a cutting tool.
13. Bar tip guard - Anti-kickback device attached
on the bar nose.
NOMENCLATURE OF PARTS
14. Fuel tank cap - For closing the fuel tank.
15. Oil tank cap - For closing the oil tank.
16. 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.
17. Purge pump - When starting engine, push
purge pump 3 or 4 times.
18. Throttle trigger - Device activated by the
operator’s finger, for controlling the engine
speed.
19. Throttle trigger lockout - A safety lever which
must be depressed before the throttle trigger
can be activated in order to prevent the
accidental operation of the throttle trigger.
20. Ignition switch - Device for connecting and
disconnecting the ignition system and thus
allowing the engine to be started or stopped.
21. Cleaner cover latch - Device for installing the
air cleaner cover.
22. Air cleaner cover - Covers air cleaner.
23. Cylinder cover - The cooling airflow grill.
It covers the cylinder, spark plug and
silencer.
24. Front handle (for the left hand) - Support
handle located at the front of the engine
housing.
8
CS-361P
OPERATOR SAFETY
VIBRATION AND COLD
• ItisbelievedthataconditioncalledRaynaud’s
Phenomenon, which affects the fingers of certain
individuals, may be brought about by exposure
to vibration and cold.
Exposure to vibration and cold may cause
tingling and burning followed by loss of color and
numbness in the fingers.
The following precautions are strongly
recommended because the minimum exposure
which might trigger the ailment is unknown.
• Keepyourbodywarm,especiallytheheadand
neck, feet and ankles and hands and wrists.
• Maintaingoodbloodcirculationbyperforming
vigorous arm exercises during frequent work
breaks and also by not smoking.
• Limitthenumberofhoursofoperation.
Try to fill each day with jobs where operating the
chain saw, or other hand-held power equipment
is not required.
• Ifyouexperiencediscomfortrednessand
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
• Itisbelievedthatover-usingthemusclesand
tendons of the finger, 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).
• AnextremeRSIconditionisCarpalTunnel
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:
• Avoidusingyourwristinabent,extendedor
twisted position.
• Takeperiodicbreakstominimizerepetitionand
rest your hands.
• Reducethespeedandforceinwhichyoudothe
repetitive movement.
• Doexercisestostrengthenhandandarm
muscles.
• Seeadoctorifyoufeeltingling,numbnessor
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.
EYE AND HEARING PROTECTION
• WeareyeprotectiongogglesthatmeetANSI
Z 87.1 requirements.
Goggles meeting the requirements have the
mark “Z 87” stamped on them.
• Wearhearingprotection.
If this guideline is not followed, hearing loss can
occur.
ECHO recommends wearing hearing protection
at all times.
WEAR PROPER CLOTHING
• Snugttingdurableclothingshouldbeworn.
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.
• Wearshoeswithnon-skidsoles.
Do not wear open toed shoes or operate unit
barefooted.
• Wearno-slip,heavydutyworkglovestoimprove
your grip on the chain saw handles.
The gloves also help reduce the transmission of
machine vibration to your hands.
HOT HUMID WEATHER
• Heavyprotectiveclothingcanincreaseoperator
fatigue which may lead to heat stroke.
Schedule heavy work for early morning, or late
afternoon hours when temperatures are cooler.
AVOID HOT SURFACES
• Duringoperation,themuferorcatalyticmufer
and surrounding cover become hot.
• Neversuspendthesawonalanyardwiththe
engine running.
• Alwaysusethesawfromtheright-handsideof
your body - never from the left side.
• Alwayswearpropersafetyclothingtoprotect
your lower body from sharp saw chain and hot
muffler.
• Alwayskeepexhaustareaclearofammable
debris during transportation or when storing,
otherwise serious property damage or personal
injury may result.
9
CS-361P
SPARK ARRESTOR MUFFLER
• Thesparkarrestormufercontrolstheexhaust
noise and prevents hot, glowing particles of
carbon from leaving the muffler.
Make sure the spark arrestor screen is in good
repair and properly seated in the muffler.
• Certaininternalcombustionenginesoperatedon
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
Linear kickback
Rotational kickback
Chain moving downward at impact
Rotational kickback
Reduced radius belongs on top
Pinch
Kickback
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.
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.
This model needs to use low-kickback chain and
bar.
Do not use a combination other than those
specified on page 23.
For your own safety, do not remove the chain
brake system.
USA : ANSI Standard B175.1
Safety Requirement for chain saws
Canada : CSA Standard Z 62.1 CHAIN SAWS
WARNING
ANSI Standard B175.1 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.
10
CS-361P
PREPARATION FOR USE
Clutch cover
Brake lever
(Front hand guard)
Two nuts
Unlock chain brake
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 3/8 in. or 11 mm (7/16 in.)
Wrenches.
For saws with Kick Guard
®
P/N 2894902 and
Symmetrical Low-Kick type guide bars.
1a. Install 8-32 bolt in small hole of Kick Guard
®
and through small hole in guide bar.
1b. Install 1/4-27 bolt in large rear hole of Kick
Guard
®
and through large front hole in guide
bar.
2. IMPORTANT: Dimple in Kick Guard
®
(A) must
engage recess in guide bar (B).
3. Tighten nut (C) and bolt by hand until snug.
Make certain Kick Guard
®
is flush against guide
bar.
4. Tighten nut additional 1/2 turn.
5. Check to make certain Kick Guard
®
is tight on
guide bar.
GUIDE BAR AND SAW CHAIN
INSTALLATION/REMOVAL
NOTICE
•Movethechainbrakelever(Fronthandguard)
fully rearward to remove or install the clutch
cover to chain saw.
1. Remove spark plug lead.
2. Remove the clutch cover nuts and remove clutch
cover.
3. Remove bar and saw chain if necessary. See
“Maintenance and Care” section for guide bar/
saw chain maintenance procedures.
1a. 1b.
11
CS-361P
4. Mount guide bar on studs and slide toward
clutch to make saw chain installation easier.
Install chain with cutters on top of guide bar
facing forward.
5. Unlock the chain brake, and install the clutch
cover over the guide bar studs. Ensure chain
tension adjuster pin fits into the guide bar
adjuster hole, brake band is positioned around
clutch drum. Tighten clutch cover nuts finger
tight.
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 nuts 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.
ADJUSTING CHAIN TENSION
IMPORTANT
Always loosen clutch cover nuts before turning
the chain tension adjuster, otherwise the clutch
cover and tensioner will be damaged.
1. Remove spark plug lead.
2. Unlock the chain brake and loosen a clutch
cover nuts, 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 both nuts with the bar nose held up.
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 - 9 to 11 N·m (80 to 95
in. lb.).
7. Keep chain properly tensioned at all times.
Adjusting screw
Proper tension Improper tension
Unlock chain brake
Direction to tension the chain
Guide bar
adjuster hole
Clutch cover
Nuts
Adjuster pin
Clutch
Guide bar studs
12
CS-361P
WARNING
Alternative fuels, such as E-15 (15 % ethanol),
E-85 (85 % ethanol) or any fuels not meeting
ECHO requirements are not approved for use
in ECHO 2-stroke gasoline engines.
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.
IMPORTANT
•ECHOpremiumPowerBlendX™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.
•Useofunmixed,improperlymixed,orfuelolder
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.
Fuel Mix Chart 50 : 1
U.S. Metric
Gasoline Oil Gasoline Oil
Gallons US. fl. oz. L mL
1 2.6 4 80
2 5.2 8 160
5 12.8 20 400
FUEL AND LUBRICANT
FUEL STATEMENT
Gasoline - Use 89 Octane [(R+M)/2] (mid grade or
higher) gasoline or gasohol known to be good
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.
ECHObrandPowerFuel™is93octane,ethanol-
freefuelpremixedwithECHORedArmor™engine
oil at 50 : 1 ratio.
UseofECHOPowerFuel™isrecommendedto
extend engine life in all air-cooled 2-stroke and
2/4-stroke hybrid engines.
Two-Stroke Oil - A two-stroke engine oil meeting
ISO-L-EGD (ISO/CD 13738) and JASO M345-FD
Standards must be used.
ECHObrandpremiumPowerBlendX™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-FD certified oil, such as
ECHOpremiumPowerBlendX™,willvoidthe
two-stroke engine warranty.
13
CS-361P
HANDLING FUEL
Mixing Instructions -
1. Fill an approved fuel container with half of the
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.
IMPORTANT
•Spilledfuelisaleadingcauseofhydrocarbon
emissions.
Some states may require the use of automatic
fuel shut-off containers to reduce fuel spillage.
•Storedfuelages.
Do not mix more fuel than you expect to use in
thirty (30) days, ninety (90) days when a fuel
stabilizer is added.
•Storedtwo-strokefuelmayseparate.
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.
DANGER
Fuel is very flammable. Use extreme care
when mixing, storing or handling or serious
personal injury may result.
•Useanapprovedfuelcontainer.
•Donotsmokenearfuel.
•Donotallowamesorsparksnearfuel.
•Fueltanks/cansmaybeunderpressure.
Always loosen fuel caps slowly allowing
pressure to equalize.
•Neverrefuelaunitwhentheengineishot!
•Neverrefuelaunitwiththeenginerunning.
•Donotllfueltanksindoors.
Alwaysllfueltanksoutdoorsoverbare
ground.
•Securelytightenfuelcapafterrefueling.
•Inspectforfuelleakage.
If fuel leakage is found, do not start or
operate unit until leakage is repaired.
•Moveatleast3m(10feet)fromrefueling
location before starting the engine.
Fuel tank cap
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.
• Usebarandchainoilofhighqualityforthis
purpose.
• Donotuseusedorreclaimedoiltoavoidvarious
oiler problems.
• UseECHObarandchainoil.
• Usebarandchainoilofthefollowinggrades:
SAE No. 30 ....... in summer
SAE No. 10 ....... in winter or when cutting
resinous trees
• Whenrefueling,alsorellchainoil.
Oil tank cap
Cap indication
Fuel/oil tanks are indicated by the following
illustrations.
14
CS-361P
EMISSION DATA
EMISSION CONTROL
(EXHAUST and EVAPORATIVE) EPA 2010 and/
or C.A.R.B. TIER III
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.
An Emission Control Label is located on the
engine. (This is an example only, information on
label varies by engine family).
PRODUCT EMISSION DURABILITY
(EMISSION COMPLIANCE PERIOD)
The 300 hours emission compliance period is
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.
EMISSION CONTROL INFORMATION
ENGINE FAMILY: #EHXS.0364KC DISPLACEMENT: 35.8 cc
EMISSION COMPLIANCE PERIOD: 300 Hours
THIS ENGINE MEETS * * * * U.S. EPA EXH/EVP & CALIFORNIA
EXH/EVP EMISSION REGULATIONS FOR S.O.R.E. REFER TO OWNER’S
MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
***????
15
CS-361P
WARNING
•Afterchokecontrolknobispulledandthen
knob is returned to original position, throttle
remains a little open (latch condition).
•Ifengineisstartedinthislatchcondition,
chain starts to turn. Do not start engine
before chain brake is activated.
CAUTION
•Afterstartingtheengine,immediately
squeeze and release throttle trigger for
disengaging throttle latch and returning
engine to idle, and pull front hand guard
towards the operator immediately.
(Chain brake unlocked position)
•Neverusethrottlelatchforcutting.
•Usethechainbrakeonlyinstartingorin
emergencies.
OPERATION
Start / Run
Ignition switch
Chain brake
Starter handle
Unlock chain brake
Throttle trigger
Choke
Throttle trigger lockout
Purge pump
16
CS-361P
WHEN THE ENGINE IS COLD
CAUTION
Make sure the bar and chain are free from
any obstruction when starting the chain saw.
• Movechainbrakeleverfullyforwardtolock
chain brake before starting.
• Fillthefueltankwithfuelmixture.
It is not permitted to fill fuel above the shoulder
level of fuel tank.
• Fillthechainoiltankwithlubricant.
Do not over fill.
• Moveignitionswitchto“Run” position.
• Pushpurgepumpuntilfuelisvisibleinpurge
pump.
• Pullchokecontrolknoballthewayout.
(Choke position
)
• Securelyholdthechainsawasshownand
pull starter handle several times until first firing
sound.
• Pushchokecontrolknoballthewayin.
• Pullstarterhandleagaintostarttheengine.
• Whenenginestarts,immediatelysqueezeand
release throttle trigger for disengaging throttle
latch and returning engine to idle, 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.
• Movechainbrakeleverfullyforwardtolock
chain brake before starting.
• Conrmthereisfuelandchainoilinthetanks.
• Moveignitionswitchto“Run” position.
• Securelyholdthechainsawasshownandpull
starter handle.
• Chokemaybeusedifnecessary,butafterrst
firing sound, pull throttle trigger to release choke.
• Afterstartingtheengine,pullfronthandguard
towards the operator immediately.
(Chain brake unlocked position)
Starter handle
Start / Run
Ignition switch
Chain brake
Unlock chain brake
Throttle trigger
Choke
Throttle trigger lockout
Purge pump
Starter handle
Chain brake
Unlock chain brake
Start / Run
Ignition switch
17
CS-361P
RUNNING
• Whenenginestarts,keepidlingforafew
minutes.
• Setthebrakeleverintheunlockedposition
before starting to cut.
• Pullthrottletriggergraduallyandincrease
revolution of the engine.
• Thechainstartsrunningwhentheengine
reaches 4500 r/min approximately.
• Conrmproperaccelerationandlubricationof
chain and bar.
• Donotruntheengineathighspeed
unnecessarily.
• Besurethatsawchainstopsmovingwhen
throttle trigger is released.
STOPPING
• Releasethrottletriggerandmoveignitionswitch
down to STOP position.
NOTICE
If engine does not stop, pull choke control knob
out fully to stop engine.
Return the unit to your authorized ECHO dealer
to check and repair ignition switch before starting
the engine again.
CHECKING CHAIN TENSION
• Chaintensionshouldbecheckedfrequently
during work and corrected as necessary.
• Tensionthechainastightaspossible,butsoit
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.
Ignition switch
Throttle trigger
STOP
Unlock chain brake
18
CS-361P
CUTTING INSTRUCTION
GENERAL
CAUTION
•ReadtheECHO“CHAINSAWSAFETY
MANUAL” included with your chain saw for
additional cutting and safety instructions.
•Wearsuitablehearingprotectionsuchas
earmuffs or earplugs to protect against
objectionable or uncomfortable loud noises.
•Donotletthetipofthebartouchanything
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.
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.
Kickback
19
CS-361P
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.
Next, select a path of retreat.
When the tree begins to fall you should retreat
away from the direction of fall at a 45-degree angle
and at least 3 m (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.
Do not try to cut through to the notch with the
felling cut.
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.
When the tree starts to fall, kill the engine, place
the saw on the ground and make your retreat
quickly.
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.
The final cut is made by drawing the saw forward
in the cut to reach the hinge.
1
2
3
Felling cut
Hinge
Direction of fall
First cut
Notch
Second cut
One-third tree diameter
Direction of fall
5 cm (2 in.)
5 cm (2 in.)
45°
45°
Not this way
Retreat
Retreat
3 m (10 feet)
20
CS-361P
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 kick-
back, 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.
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.
The first cut should be no deeper than one-third the
trunk diameter.
DANGER
•Kickbackisgeneratedwhentherotationof
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.
•Thechainsawindustryandgovernment
agencies have attempted to prescribe
various safety devices, but the best
protection is to avoid kickback.
•Complywiththesafetyprecautionsas
listed in this Manual and Safety Manual.
Uphill position
Finish cut
First cut
Board or flat stones
21
CS-361P
Chain brake function
When the lever is pushed forward, chain brake
instantly stops the chain.
Chain brake unlock
When the lever is fully pulled toward the
operator, brake is unlocked.
CHAIN BRAKE OPERATION
• Settheleverintheunlockedpositionbefore
starting to cut.
• Ifthebrakeistrippedbykickbackreaction,the
chain will stop immediately. Release the throttle
to avoid possible damage to the engine or
clutch.
• Donotattempttooperatetheenginewiththe
brake locked.
TESTING THE BRAKE
• Starttheengineonasolidlevelsurfaceandrun
at a fast idle until warm.
• Holdthesawrmlybythehandlesand
accelerate the engine to a fast idle.
• Slowlyoperatethechainbrakeleverwhile
holding the saw firmly on the ground.
When the brake lever trips, the chain should
stop.
Immediately release the throttle trigger.
WARNING
If the chain does not stop immediately, return
the saw to your authorized ECHO dealer for
repair.
NOTICE
•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.
•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.
When the bar nose hits another tree, etc.
Improper thrust cutting
Kickback motion
Kickback motion
22
CS-361P
End of the guide bar may be placed at the
height of about 35 cm (14 in.).
35 cm
(14 in.)
AUTOMATIC CHAIN BRAKE
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
35 cm (14 in.) above a wooden surface. Right
hand should hold the rear handle, and left hand
should hold the front handle.
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.
23
CS-361P
CHAIN AND GUIDE BAR COMBINATION
The following combinations are recommended for model
CS-361P
.
GUIDE BAR
(Low-kickback)
Replacement guide bars.
The following guide bars may be considered to
have equivalent kickback energy.
• Sprocketnoseguidebarsofthesamelength
and nose radius, same pitch and having the
same number of teeth.
• Hardnoseguidebarsofthesamelengthand
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 kickback performance requirements,
when tested on the representative sample of
chainsawsbelow3.8c.i.d.speciedinANSI
B175.1.
NOTICE
LOW KICKBACK SAW CHAIN meets the
kickback performance requirements of ANSI
B175.1 (safety requirements for gasoline-
powered chain saws).
Guide bar Saw chain
Length mm (in.) ECHO Part No. Pitch mm (in.) ECHO Part No. Links
305 (12)
12A0ES3745
9.53 (3/8)
91PXL45CQ
45
12A0ED3745 91PX45CQ
356 (14)
14A0ES3752 91PXL52CQ
52
14A0ED3752 91PX52CQ
406 (16)
16A0ES3757 91PXL57CQ
57
16A0ED3757 91PX57CQ
24
CS-361P
MAINTENANCE AND CARE
IMPORTANT
Time intervals shown are maximum.
Actual use and your experience will determine
the frequency of required maintenance.
Your ECHO chain saw is designed to provide many
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.
SKILL LEVELS
Level 1 = Easy to do. Most required tools come
with unit.
Level 2 = Moderate difficulty. Some specialized
tools may be required.
ECHO offers REPOWER™MaintenanceKitsand
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
Maintenance Procedure Letter Codes:
I = Inspect
C = Clean
R = Replace
Maintenance Procedure Notes:
(1)= Low evaporative fuel tanks DO NOT require
regular maintenance to maintain emission
integrity.
* = All recommendations to replace are based
on the finding of damage or wear during
inspection.
Component / system Maintenance procedure
Required
Skill level
Daily or
Before use
Every refuel
3 Months or
90 Hours
Yearly or
600 Hours
Air Filter Inspect / Clean / Replace 1 I / C * R *
Automatic Oiler Inspect / Adjust 1 I
Oil Filter Inspect / Clean / Replace 1 I I / C *
Fuel System Inspect / Replace 1 I (1) * I (1) *
Fuel Filter Inspect / Replace 1 I * I / R *
Fuel Cap Gasket Inspect / Replace 1 I * R *
Guide Bar and Sprocket Nose Inspect / Clean / Lubricate 1 I / C * I
Saw Chain
Inspect / Sharpen / Replace /
Tensioning
2 I *
Sprocket Inspect / Replace 2 I *
Spark Plug Inspect / Clean / Replace 1
I / C / R *
Cooling System Inspect / Clean 2 I / C
Muffler Spark Arrestor Inspect / Clean / Replace 2
I / C / R *
Cylinder Exhaust Port Inspect / Clean / Decarbon 2 I / C
Recoil Starter Rope Inspect / Clean 1 I / C *
Screws / Nuts / Bolts Inspect / Tighten / Replace 1 I *
25
CS-361P
CARBURETOR ADJUSTMENT
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.
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:
• Startengine,turn“Idle”speedadjustment
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 ¼ 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 3200 r/min.
CAUTION
When starting, idling adjustment speed
should be adjusted not to rotate the saw
chain.
Correct idle speed is adjusted 3200 r/min.
Or ¼ turn CCW from the point the chain
stops moving.
When you experience trouble with the
carburetor, contact your dealer.
Idle adjusting screw
Low speed needle (L) High speed needle (H)
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.
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.
26
CS-361P
Oil filter
Fuel filter
Oil tank cap
Fuel tank cap
0.65 mm (0.026 in.)
Air filter
Air cleaner cover
AIR FILTER
• Checkbeforeeveryuse.
• Closechoke( ).
• Releasethecleanercoverlatch,andremoveair
cleaner cover and filter.
• Brushoffdustlightly,orcleanwithcompressed
air, or replace the air filter.
• Reinstallairlterandcover,engagelatch.
CHECK FUEL SYSTEM
• Checkbeforeeveryuse.
• Afterrefueling,makesurefueldoesnotleak
from around fuel pipe, fuel grommet or fuel tank
cap.
• Incaseoffuelleakagethereisadangerofre.
Stop using the machine immediately and request
your dealer to inspect or replace.
SPARK PLUG
• Checkperiodically.
• Thestandardsparkgapis0.65mm
(0.026 in.).
• Correctthesparkgapifitiswiderornarrower
than the standard gap.
• Fasteningtorque: 15to17N·m
(130 to 145 in. lb.).
FUEL FILTER
• Checkperiodically.
• Donotallowdusttoenterfueltank.
• Acloggedlterwillcausedifcultyinstarting
engine or abnormalities in engine performance.
• Pullthefuellteroutthroughfuelinletportwith
a piece of steel wire or the like.
• Whenthelterisdirty,replaceit.
• Whentheinsideofthefueltankisdirty,rinsing
the tank out with gasoline can clean it.
OIL FILTER
• Checkperiodically.
• Donotallowdusttoenterintooiltank.
• Acloggedoillterwillaffectthenormal
lubricating system.
• Pullitoutthroughoilllingholewithapieceof
steel wire or the like.
• Ifthelterisdirty,washitingasolineorreplace
it.
• Whentheinsideofthetankgetsdirty,rinsing
the tank out with gasoline can clean it.
Cylinder cover
Cleaner cover latch
27
CS-361P
GUIDE BAR
• Cleanbeforeusing.
- Clean the groove of the guide bar with a small
screwdriver.
- Clean oil holes with a wire.
• Reverseguidebarperiodically.
• Checksprocketandtheclutchandcleanthebar
mount area before installation of the bar.
Replace either or both if worn.
SPROCKET
• Adamagedsprocketwillcausepremature
damage or wear of saw chain.
- When the sprocket has worn out 0.5 mm (0.02
in.) or more, replace it.
• Checksprocketwhenyouinstallnewchain.
Replace it if worn.
CYLINDER FINS
• Checkperiodically.
• Cloggednswillresultinpoorenginecooling.
• Removedirtanddustfrombetweennstolet
cooling air pass easily.
MUFFLER SPARK ARRESTOR
• Removethesparkpluglead.
• Removesparkarrestorscreencoverandscreen
from muffler body.
• Cleancarbondepositsfrommufercomponents.
• Replacescreenifitiscracked,orhasholes
burned through.
• Inspectthegasket,replaceifdamaged.
• Assemblecomponentsinreverseorder.
NOTICE
Carbon deposits in muffler will cause drop in
engine output. Spark arrestor screen must be
checked periodically.
AUTOMATIC OILER
• Thedischargevolumeoftheautomaticoileris
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.
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.
Worn : 0.5 mm (0.02 in.)
Groove
Oil hole
Cylinder fins
Spark arrestor screen
Muffler
Screen cover
Clutch
(Sprocket)
DecreaseIncrease
Adjusting screw
Gasket
28
CS-361P
SETTING THE SAW CHAIN
Sharpen lower edge
Drive link
Tie strap
Right hand cutter
Preset tie strap
Left hand cutter
Guard link
Top plate
Side plate
Depth gauge
Important points for proper maintenance of saw
chain:
• Keepthecutterssharpatalltimes.
• Keeptheleftandtherightcuttersproperly
aligned.
- Note that blunt or irregular cutters will result in
poor cutting performance, increased vibration
of chains and premature breakage of the saw
chain.
• Drivelinkservestoremovesawdustfromthe
groove of the guide bar.
Keep the lower edge of the drive link sharp
where indicated.
SETTING SAW CHAIN
• Forsettingsawchain,roundle(4.0mm
diameter 5/32 in.) and flat file are used.
• Tokeepcorrectpositionandcorrectangle,use
the file holder (Sure Sharp
®
).
Hold the file horizontally
90°
30°
Push file as shown
Keep this angle
29
CS-361P
• Placethedepthgaugetoolrmlyonguidebar
so that depth gauge protrudes.
Then file top of depth gauge with the flat file until
flat with top of the depth gauge tool.
- Be sure to round off the front edge of the
depth gauge.
Properly filed cutters are shown in illustration.
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.
- If the saw chain becomes soiled with resin, for
instance, clean it with kerosene and soak in it
oil.
NOTICE
These angles are referred to as Oregon 91PXL
or 91PX.
To sharpen other follow chain manufacturer’s
instruction.
Remove until
flat with tool
Depth gauge tool
Round off the edge
1/5
One fifth of file diameter remains
above cutter edge
Top plate filing angle
55°
30°
Parallel
0.65 mm (0.025 in.)
Top plate cutting angle
Depth gauge
30
CS-361P
TROUBLESHOOTING
WARNING
Fuel vapors are extremely flammable and
maycausereand/orexplosion.Nevertest
for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious
personal injury may result.
Problem
Engine — hard to start Cause Remedy
—
does not start
Engine
cranks
Fuel at
carburetor
No fuel at
carburetor
•Fuellterclogged •Cleanorreplace
•Fuellineclogged •Clean
•Carburetor •AskyourECHOdealer
Fuel at
cylinder
No fuel at
cylinder
•Carburetor •AskyourECHOdealer
Muffler wet with
fuel
•Fuelmixtureistoorich •Openchoke
•Clean/replaceairlter
•Adjustcarburetor
•AskyourECHOdealer
Spark at end
of plug wire
No spark at end
of plug wire
•Ignitionswitchoff •Turnswitchon
•Electricalproblem •AskyourECHOdealer
Spark at plug No spark at plug •Sparkgapincorrect •Adjust0.65mm(0.026in.)
•Coveredwithcarbon •Cleanorreplace
•Fouledwithfuel •Cleanorreplace
•Sparkplugdefective •Replaceplug
Engine
does not
crank
•Internalengineproblem •AskyourECHOdealer
Engine
runs
Dies or accelerates poorly •Airlterdirty •Cleanorreplace
•Fuellterdirty •Cleanorreplace
•Fuelventblocked •Clean
•Sparkplug •Cleanandadjust/replace
•Carburetor •Adjust
•Coolingsystemblocked •Clean
•Exhaustport/spark
arrestor screen blocked
•Clean
31
CS-361P
STORAGE AFTER USE
• Inspectandadjusteverypartofthechainsaw.
- Completely clean every part and repair if
necessary.
- Apply thin coating of oil on metal parts to
prevent rust.
• Removechainandguidebar.
• Drainfueltank,pullstarterslowlyafewtimesto
drain fuel from carburetor.
• Pourasmallamountofcleanmotoroilintospark
plug hole, pull starter and crank the engine until
piston reaches: TOP DEAD CENTER.
• Storeinadryarea,freefromdust.
WARNING
Do not store in an enclosure where fuel
fumes may accumlate or reach an open flame
or spark.
CAUTION
Do not lend or rent your chain saw without
the Instruction manual and Safety manual.
NOTICE
•Forfuturereference,youshouldkeepthis
Instruction manual and the Safety manual.
•IfthisInstructionmanualortheSafetymanual
has become illegible or is lost, please purchase
a new one from your ECHO dealer.
32
CS-361P
* Technical data subject to change without notice.
TECHNICAL DATA
MODEL
CS-361P
Dimension L × W × H mm 392 × 260 × 242 (15.4 in. × 10.2 in. × 9.5 in.)
Mass Power head, dry kg 3.8 (8.4 lb.) Without chain and guide bar
Engine Type Air-cooled two-stroke single cylinder
Displacement mL (cm³) 35.8 (2.18 cu. in.)
Carburetor Diaphragm type
Magneto Flywheel magneto: CDI system
Spark plug NGK BPM8Y
Starter Recoil starter
Power transmission Automatic centrifugal clutch
Fuel Mixture ratio
50:1ratiowithECHOPowerBlendX™,ISO-L-
EGD (ISO/CD 13738) and JASO M345-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-15 or E-85.
Tank capacity L 0.320 (10.82 US. fl. oz.)
Oil Bar and chain ECHO bar and chain oil
Tank capacity L 0.230 (7.78 US. fl. oz.)
Guide bar and
saw chain
See page 23 for Chain and Guide Bar Combination
Lubrication Adjustable automatic oil pump
Engine speed Idle
r/min
3000 - 3500
Clutch engagement 4150 - 4650
Wide open throttle 12500 - 13500
Standard
features
Front hand guard, Rear hand guard,
Anti-vibration device, Spiked bumper,
Throttle control lockout, Chain brake, Chain catcher,
Spark arrestor muffler, Kick guard
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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 ve(5)
years from date of purchase.
EXCEPTIONS:
•Fortwo-strokeenginepoweredproducts,theelectronicignitionmodule,exibledrivecables,SRMsoliddriveshafts,andTC
tines are warranted for the life* of the product on parts only.
•Cuttingattachmentssuchas,butnotlimitedto,bars,chains,sprockets,blades,andnylontrimmerheadsforresidentialor
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’sRapidLoaderStringHeadcarriesalifetimewarrantyonthelinelockingsystem,partsonly;nolabor.Refertoyour
operator’s manual for string head installation and maintenance instructions.
•AllSB-SeriesandPROATTACHMENTSERIESSplitShaftattachmentscarrythesamewarrantydurationastheunitstheyare
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:
•Fortwo-strokeenginepoweredproducts,theelectronicignitionmodule,exibledrivecables,SRMsoliddriveshaftsandTC
tines, are warranted for the life* of the product on parts only.
•Cuttingattachmentssuchas,butnotlimitedto,bars,chains,sprockets,blades,andnylontrimmerheadsforcommercial,
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’sRapidLoaderStringHeadcarriesalifetimewarrantyonthelinelockingsystem,partsonly;nolabor.Refertoyour
operator’s manual for string head installation and maintenance instructions.
•AllSB-SeriesandPROATTACHMENTSERIESSplitShaftattachmentscarrythesamewarrantydurationastheunitstheyare
designed to fit.
RENTAL APPLICATION - 90 DAYS WARRANTY
•Unitsforrentalusewillbecoveredagainstdefectsinmaterialandworkmanshipforaperiodof90daysfromthedateofpurchase.
* 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-dayresidential,ornon-incomeproducingwarranty
•30-daycommercial,institutional,agricultural,industrial,incomeproducing,orrentalapplicationwarranty
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-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-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:
•Lackoflubricationorenginefailure,duetotheuseoftwo-strokeoilsthat do not meet the ISO-L-EGD (ISO/CD 13738) and JASO
M345-FD Standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD compliant and JASO
M345-FD registered oil, will void the two-stroke engine limited warranty. ECHOPowerBlendX™Two-StrokeOil meets the ISO-
L-EGD and JASO M345-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.
•Damagecausedbyuseofgasohol,containingmethanol(woodalcohol),orgasolinecontainingless 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.
•Enginedamagecausedbyuseofetheroranystartinguids.
•Damagecausedbytamperingwithenginespeedgovernororemissioncomponents,orrunningenginesabovespeciedand
recommended engine speeds as listed in your operator’s manual.
•Operationoftheunitwithimproperlymaintained/removedcuttingshieldorremoved/damagedairlter.
•Damagecausedbydirt,pressureorsteamcleaningtheunit,saltwater,corrosion,rust,varnish,abrasives,andmoisture.
•Defects,malfunctionsorfailuresresultingfromabuse,misuse,neglect,modications,alterations,normalwear,improperservicing,
or use of unauthorized attachments.
•Incorrectstorageprocedures,stalefuel,includingfailuretoprovideorperformrequiredmaintenanceservicesasprescribedinthe
operator’s manual. Preventative maintenance as outlined in the operator’s manual is the customer’s responsibility.
•Failuresduetoimproperset-up,pre-deliveryserviceorrepairservicebyanyoneotherthanauthorizedECHOservicingdealer
during the warranty period.
•Certainparts and other items are not warranted, including but not limited to: lubricants, starter cords, and engine tune-ups.
•UseofsparkplugsotherthanthosemeetingperformanceanddurabilityrequirementsoftheOEMsparkpluglistedinthe
Operator’s Manuals.
•Overheatingorcarbonscoringfailuresduetorestricted,cloggedexhaustportorcombustionchamber,includingdamagetospark
arrester screen.
•Adjustmentsaftertherst(30)thirtydaysandbeyond,suchascarburetoradjustmentandthrottlecableadjustment.
•Damagetogearsorgearcasescausedbycontaminatedgreaseoroil,useofincorrecttypeorviscosityoflubricants,and/orfailure
to comply with recommended grease or oil change intervals.
•DamagecausedbyloadingSHRED‘N’VAC®beyondrecommendedcapacity.
•Damagecausedbypumporsprayerrunningdry,pumpingorsprayingcausticorammablematerials,orlackoforbroken
strainers.
•Additionaldamagetopartsorcomponentsduetocontinueduseafteroperationalproblemorfailureoccurs.Shouldoperational
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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WARRANTY REGISTRATION SHEET
Thank you for choosing ECHO Power Equipment
Please go to http://www.echo-usa.com/Warranty/Register-Your-ECHO to register your new product on-line.
It’s FAST and EASY! NOTE: your information will never be sold or misused by ECHO, Inc. Registering
your purchase enables us to contact you in the unlikely event of a service update or product recall, and
verifies your ownership for warranty consideration.
If you do not have access to the Internet, you can complete the form below and mail to:
ECHO Inc., Product Registration, PO Box 1139, Lake Zurich IL 60047.
C51814001001 - C51814999999
