Echo CS-450P User Manual

OPERATOR’S MANUAL

CHAIN SAW

CS-450P

WARNING

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

ECHO POWER EQUIPMENT (CANADA)

501 Newbold Street, London, Ontario Canada N6E 1K4

Printed in Japan 1005Dlf 0078 ES

X750-012 44 1
X750 319-770 1

RULES FOR SAFE OPERATION

1. Fatigue causes carelessness. Be more
cautious before rest periods and before
the end of your shift.

2. Personal protective clothing required by
your safety organizations, government
regulations, or your employer should be
used; otherwise, sung fitting clothing,
protective eyewear, safety footwear and
hand, leg and hearing protection should
be worn.

Note: Personal protective clothing

should meet the requirements
of applicable Standards.

3. Before fueling, servicing or transporting
your chain saw switch off the engine. To
help prevent fire, restart your chain saw
at least 3 m from the fueling area.

4. When using a chain saw a fire
extinguisher should be available.

5. When felling, keep at least 2 tree
lengths between yourself and your
fellow workers.

6. Plan your work; assure yourself of an
obstacle-free work area and, in the case
of felling, of an escape path from the
falling tree.

7. Follow instructions in your operator’s
manual for starting the chain saw and
control the chain saw with a firm grip on
both handles when it is in operation.
Keep handles dry, clean and free of oil.
A chain saw should never be carried
with the engine running.

8. When transporting your chain saw, use
the appropriate transportation covers
that should be available for the guide
bar and saw chain.

9. Never operate a chain saw that is
damaged, improperly adjusted, or is not
completely and securely assembled. Be
sure that the saw chain stops moving
when the throttle control trigger is
released. Never adjust the guide bar or
saw chain when the engine operating.

10. Beware of carbon monoxide poisoning.
Operate the chain saw in well-ventilated
areas only.

11. Do not attempt a pruning or liming
operation in a standing tree unless
specifically trained to do so.

12. Guard against kickback. Kickback is the
upward motion of the guide bar, which
occurs when the saw chain, at the nose
of the guide bar, contact an object.
Kickback can lead to dangerous loss of
the chain saw.

TO AVOID KICKBACK:

(a) Contact of the guide bar tip with any

object should be avoided.

(b) Tip contact may cause the guide bar

to move suddenly upward and
backward which may cause serious
injury.

(c) Always use two hands when

operating the chain saw.

(d) Use a firm grip, thumbs and fingers

encircling the handles.
(e) Don’t overreach.
(f) Avoid cutting above shoulder height.
(g) Follow the manufacture’s instructions

for sharpening and maintenance of

the saw chain.

13. When boring with the chain saw, the
initial cut should be introduced with the
lower part of the nose (tip) until the hole
is sufficiently large so as to introduce the
entire nose (tip) of the guide bar. This
technique should reduce the danger of
kickback.

14. A chain saw is intended for two-handed
use. Serious injury to the operator,
helpers and/or bystanders may result
from one-handed operation.

CAUTION

A. Allow your chain saw to cool before

refueling, and do not smoke while
refueling.

B. Do not allow other persons or animals

close to running chain saw or close to
where a tree is being felled.

C. Use extreme caution when cutting small

size brush and saplings because
slender material may catch the saw
chain and be whipped toward you.

D. When cutting a limb that is under

tension is alert for spring-back.

Copyright © 2009 By All Rights Reserved.

CS-450P

2

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 spark ignition system complies with Canadian standard

ICES-002.

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

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.

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.

NOTE

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.

CIRCLE AND SLASH SYMBOL

This symbol means the specific action
shown is prohibited. Ignoring these
prohibitions can result in serious or
fatal injury.

3

CS-450P

SYMBOL FORM

Symbol form/shape Symbol description/application Symbol form/shape Symbol description/application

DECALS

Carefully read the operator’s
manual

Wear eyes, ears and head
protection

Emergency stop

Choke control “Cold Start”
position (choke closed)

Oil and gasoline mixture

Chain oil fill

Chain oil pump

Chain oiler adjustmentChain brake operation

Carburetor adjustment

- Low speed mixture

Carburetor adjustment

- High speed mixture

Carburetor adjustment

- Idle speed

Part Number X503-009740

CS-450P

CAUTION: For safe operation follow all
safety precautions and instructions in
Operator’s Manual. (Replacement manuals
are available from your ECHO dealer.)
Hold chain saw firmly with both hands.

Part Number 890324-39630

Pour un travail en sécurité, respectez toutes
les règles de sécurité et les indications du
manuel d’utilisation. (Le manuel d’utilisation
est disponibile chez votre agent ECHO.) Tenez
fermement la tronçonneuse des deux mains.

Part Number X505-000450

1. Contact of the guide bar tip with any
object should be avoided.

2. Tip contact may cause the guide bar to
move suddenly upward and backward
which may cause serious injury.

3. Always use two hands when operating
the chain saw.

Part Number X505-000460

POUR ÉVITER LES REBONDISSEMENTS

1. Éviter tout contact entre le nez du
guide-chaîne et un objet quelconque.

2. Tout contact du nez peut provoquer un
mouvement brusque vers le haut ou vers
le bas et entraîner de graves blessures.

3. Toujours employer lex deux mains
pour opérer la scie à chaîne.

ATTENTION

TO AVOID KICKBACK

Part Number 890176-39431

CAUTION/ATTENTION

Hearing protectors meeting the requirements
of CSA Standard Z94.2 should be worn.

Les protecteurs auditifs pouvant être porter
doivent recontrer les normes CSA Standard
Z94.2.

Part Number X524-002280

REPLACEMENT BAR AND CHAIN

REMPLACEMENT DU GUIDE ET DE LA CHAÎNE

GUIDE BAR P/NO. CHAIN TYPE CKA
GUIDE PIÈCE NO. TYPE DE CHAÎNE

16” 16F0LD3366 OREGON 20LPX 66 47.2
18” 18F0LD3372 OREGON 20LPX 72 39.7
20” 20F0LD3378 OREGON 20LPX 78 41.6

CKA means Computed Kickback Angle.
CKA Signifie angle de rebondissement calculé.

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 operator’s manual.

REMARQUE; Il y peut y avoir d’autres

composantes de remplacement qui protègent
en cas de rebondissement. Pour plus de
détails, se référer à la feuille sur les
combinaisons de guide et de chaîne du
manuel de l’utilisateur.

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.

CS-450P

4

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.

ECHO chain saw

Operator’s manual Safety manual

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.

13 x 19 mm T-wrench,

4 mm Hexagonal Wrench,

Spiked bumper and two Bolts 5

Small screwdriver,

Guide bar

Saw chain

××

× 12 mm

××

Warranty registration

card

5

CS-450P

NOMENCLATURE OF PARTS

5

6

4

7

8

9

3

10

1

11

12

13

14

15

2

X505-000460

24

23

16

890176-39431

X524-002280

890324-39630

X503-009740

Part Number X505-000460

POUR ÉVITER LES REBONDISSEMENTS

1. Éviter tout contact entre le nez du
guide-chaîne et un objet quelconque.

2. Tout contact du nez peut provoquer un
mouvement brusque vers le haut ou vers
le bas et entraîner de graves blessures.

3. Toujours employer lex deux mains
pour opérer la scie à chaîne.

Part Number 890176-39431

CAUTION/ATTENTION

Hearing protectors meeting the requirements
of CSA Standard Z94.2 should be worn.

Les protecteurs auditifs pouvant être porter
doivent recontrer les normes CSA Standard
Z94.2.

Part Number X524-002280

REPLACEMENT BAR AND CHAIN

REMPLACEMENT DU GUIDE ET DE LA CHAÎNE

GUIDE BAR P/NO. CHAIN TYPE CKA
GUIDE PIÈCE NO. TYPE DE CHAÎNE

16” 16F0LD3366 OREGON 20LPX 66 47.2
18” 18F0LD3372 OREGON 20LPX 72 39.7
20” 20F0LD3378 OREGON 20LPX 78 41.6

CKA means Computed Kickback Angle.
CKA Signifie angle de rebondissement calculé.

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 operator’s manual.

REMARQUE; Il y peut y avoir d’autres

composantes de remplacement qui protègent
en cas de rebondissement. Pour plus de
détails, se référer à la feuille sur les
combinaisons de guide et de chaîne du
manuel de l’utilisateur.

X505-000450

17

18

Part Number X505-000450

TO AVOID KICKBACK

1. Contact of the guide bar tip with any
object should be avoided.

2. Tip contact may cause the guide bar to
move suddenly upward and backward
which may cause serious injury.

3. Always use two hands when operating
the chain saw.

Part Number 890324-39630

Pour un travail en sécurité, respectez toutes
les règles de sécurité et les indications du
manuel d’utilisation. (Le manuel d’utilisation
est disponibile chez votre agent ECHO.) Tenez
fermement la tronçonneuse des deux mains.

ATTENTION

* If a decal cannot be read, a new one can be

ordered from your ECHO dealer.

22

21

19

20

Part Number X503-009740

CS-450P

CAUTION: For safe operation follow all
safety precautions and instructions in
Operator’s Manual. (Replacement manuals
are available from your ECHO dealer.)
Hold chain saw firmly with both hands.

CS-450P

6

NOMENCLATURE OF PARTS

1. Operator’s 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. Spark arrestor muffler - The spark arrestor

muffler controls the exhaust noise and
prevents hot, glowing particles of carbon
from leaving the muffler.

4. 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.

5. Cleaner cover knob - Device for installing the

air cleaner cover.

6. Air cleaner cover - Covers air filter.

7. Purge pump - When starting engine, push

purge pump 3 or 4 times.

8. Choke control knob - Device for enriching the

fuel/air mixture in the carburetor to aid cold
starting.

9. Rear handle (for the right hand) - Support

handle located towards the rear of the
engine housing.

10. Rear hand guard - Extension on the lower part

of the rear handle for protecting the hand
from the chain if it breaks or degrooves.

11. Clutch cover - Protective cover to the guide

bar, saw chain, clutch and sprocket when the
chain saw is in use.

13. 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.

14. Spiked bumper - Device, fitted in front of the

guide bar mounting point, acting as a pivot
when in contact with a tree or log.

15. Guide bar - The part that supports and guides

the saw chain.

16. Saw chain - Chain, serving as a cutting tool.

17. Oil tank cap - For closing the oil tank.

18. 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.

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

20. Throttle trigger - Device activated by the

operator’s finger, for controlling the engine
speed.

21. 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.

22. Ignition switch - Device for connecting and

disconnecting the ignition system and thus
allowing the engine to be started or stopped.

23. Front handle (for the left hand) - Support

handle located at the front of the engine
housing.

24. Cylinder cover - The cooling airflow grill. It

covers the cylinder, spark plug and silencer.

12. Chain tension adjuster - Device to adjust

chain tension.

7

CS-450P

OPERATOR SAFETY

VIBRATION AND COLD

• It is believed that a condition called Raynaud’s
Phenomenon, which affects the fingers of certain
individuals, may be brought about by exposure to
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.

• 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.

• 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

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

• 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.

• 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.

EYE AND HEARING PROTECTION

• 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.
If this guideline is not followed, hearing loss can
occur.
ECHO recommends wearing hearing protection
at all times.

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.

HOT HUMID WEATHER

• 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.

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.

• 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.

CS-450P

8

SPARK ARRESTOR MUFFLER

• The spark arrestor muffler controls the exhaust
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.

• 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

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.

Rotational kickback

Reduced radius
belongs on top

Rotational kickback

Chain moving downward at impact

Liner kickback

Pinch

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.

Canada : CSA Standard Z 62.1,

Standard Z 62.3 CHAIN SAWS

USA : ANSI Standard B175.1 - 2000

Safety Requirement for chain saws

WARNING

CSA Z 62.1 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
maintaind in compliance with the Standard
CSA Z 62.1.

Kickback

9

CS-450P

Brake lever
(Front hand guard)

Brake connector

Clutch cover

Two nuts

PREPARATION FOR USE

WARNING

Saw chain is sharp! Always wear gloves
when handling assembly, otherwise serious
personal injury may result.

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.

• Align the brake connector of the clutch cover to
the groove on the side of the brake lever (Front
hand guard).

1. Remove spark plug lead. (See page 25)

2. Remove two clutch cover nuts and remove clutch
cover.

Clutch

Hole

Pin

Brake band

Two bolts 5 × 12 mm

Spiked bumper

Guide bar studs

Guide bar
adjuster hole

Nuts
Adjuster pin

Clutch cover

Brake connector

3. Remove bar and saw chain if necessary. See
“Maintenance and Care” section for guide bar/
saw chain maintenance procedures.

4. For initial setup, install the spiked bumper on the
front of machine with two 5 × 12 mm bolts.

5. 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.

Unlock chain brake

CS-450P

6. 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, and pin at rear of clutch cover fits
hole on engine cover. Tighten clutch cover nuts
finger tight.

10

7. 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.

Proper tension Improper tension

Direction to tension
the chain

Adjusting screw

1. Remove spark plug lead. (See page 25)

2. Loosen two 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 nuts securely - 20 to 23 N·m (200 to 230
kgf·cm).

7. Keep chain properly tensioned at all times.

11

CS-450P

FUEL AND LUBRICANT

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.
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.

Fuel Mix Chart 50 : 1

Gasoline Oil

LmL

480
8 160

20 400

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.

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 2­Stroke 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.

IMPORTANT

• ECHO premium Power Blend X™ Universal 2­Stroke 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.

CS-450P

12

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.

• 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 from refueling location
before starting the engine.

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

• 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.

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).

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.

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.0454KA DISPLACEMENT: 45.0cc
EMISSION COMPLIANCE PERIOD: 300Hours
THIS ENGINE MEETS U.S.EPA EXH REGS FOR MODEL YEAR
REFER TO OWNER’S MANUAL FOR MAINTENANCE
SPECIFICATIONS AND ADJUSTMENTS.

????

***

****

13

CS-450P

Cap indication

Fuel/oil tanks are indicated by the following
illustrations.

Oil tank capFuel tank cap

OPERATION

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.

• 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

SAE No. 10 .......in winter or when cutting

resinous trees.

• When refueling, also refill chain oil.

Throttle trigger lockout

Throttle trigger

Choke control knob

Chain brake

Ignition switch

Start / Run

Purge pump

Choke

WARNING

• After choke control knob is pulled 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.

CAUTION

• After starting the engine, squeeze throttle
trigger slightly to release throttle latch and
pull front hand guard towards the operator
immediately.
(Chain brake unlocked position)

• Never use throttle latch for cutting.

• Use the chain brake only in starting or in
emergencies.

CS-450P

Starter handle

Unlock chain brake

14

Chain brake

Ignition switch

Start / Run

WHEN THE ENGINE IS COLD

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.

• Fill the fuel tank with fuel mixture.
It is not permitted to fill fuel above the shoulder
level of fuel tank.

• Fill the chain oil tank with lubricant.
Do not over fill.

Throttle trigger lockout

Throttle trigger

Starter handle

Unlock chain brake

Purge pump

ChokeChoke control knob

Chain brake

• Move ignition switch to “RUN” position.

• Push purge pump 3 to 4 times or until fuel is
visible in purge pump.

• Pull choke control knob all the way out. (Choke
position)

• Securely hold the chain saw as shown and pull
starter handle several times until first firing
sound.

• Push choke control knob all the way in.

• Pull starter handle to start the engine.

• 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.

Choke control knob

Unlock chain brake

Open choke

• 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.

• 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.

• After starting the engine, pull front hand guard
towards the operator immediately. (Chain brake
unlocked position)

15

CS-450P

Unlock chain brake

Ignition switch

Throttle trigger

STOP

RUNNING

• When engine starts, keep idling for a few
minutes.

• 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 4000 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 move ignition switch
down to “STOP” position.

NOTE

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 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.

CS-450P

16

CUTTING INSTRUCTION

GENERAL

• 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

Kickback

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.

CAUTION

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.

17

CS-450P

Direction of fall

Retreat

3 m

45°

45°

Retreat

Not this way

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 from the trunk to avoid the trunk
kicking back over the stump.

Direction of fall

First cut

Notch

Second cut

One-third tree diameter

1

5 cm

Hinge

Felling cut

5 cm

3

2

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 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 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.

CS-450P

18

Uphill position

Finish cut

First cut

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.

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.

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.

19

CS-450P

Kickback motion

Kickback motion

Chain brake function

When the lever is pushed forward, chain brake
instantly stops the chain.

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.

• 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.
Immediately release the throttle trigger.

Chain brake unlock

When the lever is fully pulled, toward the
operator, brake is unlocked.

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.

• 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.

CS-450P

IMPORTANT

Do not allow the saw to tip forward in order to
avoid damage to the chain.

20

End of the guide bar may be placed at the
height of about 50 cm.

50 cm

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
50 cm 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.

Air cleaner cover

Plug

Cold weather
“storage” position

Warm weather position

WINTER OPERATION

Use the winter plug to prevent carburetor trouble in
winter.

• Remove air cleaner cover. Remove plug from
warm weather position, and install into cold
weather “storage” position.

NOTE

For operation at normal temperature return the
plug to its original place. (5°C)
It causes over heating of the engine.

21

CS-450P

CHAIN AND GUIDE BAR COMBINATION

The following combinations are recommended to the model CS-450P.

Guide Bar Saw chain

Length ECHO Part No. Pitch Type Links

mm (in) Double Guard mm (in) (OREGON)

406 (16) 16F0LD3366 8.26 (0.325) 20LPX 66

457 (18) 18F0LD3372 8.26 (0.325) 20LPX 72

508 (20) 20F0LD3378 8.26 (0.325) 20LPX 78

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 CSA Z

62.3 kickback performance requirements.

NOTE

LOW KICKBACK SAW CHAIN meets the
kickback performance requirements of CSA Z

62.3 (safety requirements for gasoline-powered
chain saws).

CS-450P

22

MAINTENANCE AND CARE

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™ 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

Required

Skill level

Daily or

Component/system Maintenance procedure

Air Filter Inspect/Clean/Replace 1 I/C* R*
Automatic Oiler Inspect/Adjust 1I

Before use

Every refuel

3 Months or

90 Hours

Yearly or

600 Hours

Oil Filter Inspect/Clean/Replace 1 I I/C*
Fuel System Inspect/Replace 1 I (1)* I (1)*
Fuel Filter Inspect/Replace 1I*I/R*
Fuel Cap Gasket Inspect/Replace 1I*R*
Guide Bar and Sprocket Nose Inspect/Clean/Lubricate 1 I/C* I

Saw Chain

Sprocket Inspect/Replace 2I*
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 1I*

Meintenance Procedure Letter Codes:

I = Inspect
C = Clean
R = Replace

Meintenance 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.

Inspect/Sharpen/Replace/
Tensioning

IMPORTANT

Time intervals shown are maximum.
Actual use and your experience will determine
the frequency of required maintenance.

2I*

23

CS-450P

Idle adjusting screw

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.

Low speed needle (L)

High Altitude Operation

This engine has been factory adjusted to maintain
satisfactory starting, emission, and durability
performance up to 330 m above sea level (ASL)
(96.0 kPa). To maintain proper engine operation
and emission compliance above 330 m ASL the
carburetor may need to be adjusted by an
authorized ECHO service dealer.

High speed needle (H)

IMPORTANT

If the engine is adjusted for operation above 330
m ASL, the carburetor must be readjusted when
operating the engine below 330 m ASL,
otherwise severe engine damage may result.

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:

• 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 1/4 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 2700 r/min.

CAUTION

When starting, idling adjustment speed
should be adjusted not to rotate the saw
chain. Correct idle speed is adjusted 2700
r/min. Or 1/4 turn CCW from the point the
chain stops moving.
When you experience trouble with the
carburetor, contact your dealer.

CS-450P

24

Cleaner cover knob

Spark plug

Cylinder cover

0.6 to 0.7 mm

Air cleaner cover

Air filter cover

Air filter

AIR FILTER

• Check before every use.

• Loosen cleaner cover knob and remove air
cleaner cover and filter.

• Brush off dust lightly, or clean with compressed
air, or replace the air filter.

• Reinstall air filter and cover.

CHECK FUEL SYSTEM

• 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 0.6 to 0.7 mm.

• Correct the spark gap if it is wider or
narrower than the standard gap.

• Fastening torque: 15 to 17 N·m

(150 to 170 kgf·cm).

Oil filter

Fuel filter

Oil tank cap Fuel tank cap

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.

• When the filter is dirty, replace it.

• 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.

• Pull it out through oil filling hole with a piece of
steel wire or the like.

• 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.

25

CS-450P

Clutch
(Sprocket)

Worn : 0.5 mm

Groove

Oil hole

Cylinder fins

GUIDE BAR

• Clean before using.

- Clean the groove of the guide bar with a small
screwdriver.

- 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

• A damaged sprocket will cause premature
damage or wear of saw chain.

- When the sprocket has worn out 0.5 mm or

more, replace it.

• Check sprocket when you install new chain.
Replace it if worn.

CYLINDER FINS

• Check periodically.

• Clogged fins will result in poor engine cooling.

• Remove dirt and dust from between fins to let
cooling air pass easily.

Screen cover

Adjusting screw

Gasket

Muffler

Spark arrestor screen

Decrease Increase

MUFFLER SPARK ARRESTOR

• Remove air cleaner cover and remove spark
plug lead.

• Remove spark arrestor screen cover and screen
from muffler body.

• Clean carbon deposits from muffler components.

• Replace screen if it is cracked, or has holes
burned through.
Inspect 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.

AUTOMATIC OILER

• The discharge volume of the automatic oiler is
adjusted to 4 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 to 14 mL/min at 7000 r/min)

- Do not turn the adjusting screw beyond the

maximum or minimum limit of volume
adjustment.

CS-450P

26

SETTING THE SAW CHAIN

Preset tie strap

Drive link

Right hand cutter

Tie strap

Sharpen lower edge

Left hand cutter

Top plate

Guard link

Side plate

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.
Keep the lower edge of the drive link sharp
where indicated.

Depth guage

25°

Keep this angle

Push file as shown

10°

Hold the file tipped 10° upward

SETTING SAW CHAIN

• For setting saw chain, round file (4.8 mm dia.
3/16 in.) and flat file are used.

• To keep correct position and correct angle,
use the file holder (Sure Sharp®).

27

CS-450P

1/5

One fifth of file diameter remains
above cutter edge

Depth gauge tool

25°

Side plate angleTop plate filing angle

Remove until
flat with tool

Round off
the edge

60°

• Place the depth gauge tool firmly on guide
bar 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.

60°

0.64 mm (0.025 in.)

Top plate cutting angle Depth gauge

CS-450P

NOTE

These angles are referred to as Oregon 20LPX.
To sharpen other follow chain manufacturer’s
instruction.

Parallel

28

TROUBLESHOOTING

Problem

Engine — hard to start Cause Remedy

— does not start

Engine Fuel at No fuel • Fuel filter clogged • Clean or replace
cranks carburetor at carburetor • Fuel line clogged • Clean

• Carburetor • Ask your ECHO dealer

Fuel at No fuel at • Carburetor • Ask your ECHO dealer
cylinder cylinder

Muffler wet • Fuel mixture is too rich • Open choke
with fuel • Clean/replace air filter

• Adjust carburetor

• Ask your ECHO dealer

Spark at No spark at • Ignition switch off • Turn switch on
end of end of plug • Electrical problem • Ask your ECHO dealer
plug wire wire

• Spark gap incorrect • Adjust 0.6 mm to 0.7 mm
Spark at No spark at • Covered with carbon • Clean or replace
plug plug • Fouled with fuel • Clean or replace

• Spark plug defective • Replace plug

Engine • Internal engine problem • Ask your ECHO dealer
does not
crank

Engine Dies or • Air filter dirty • Clean or replace
runs accelerates poorly • Fuel filter dirty • Clean or replace

• Fuel vent blocked • Clean

• Spark plug • Clean and adjust/replace

• Carburetor • Adjust

• Cooling system blocked • Clean

• Exhaust port/spark • Clean

arrestor screen blocked

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.

29

CS-450P

STORAGE AFTER USE

• Inspect and adjust every part of the chain saw.

- 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.

Do not store in an enclosure where fuel
fumes may accumlate or reach an open flame
or spark.

Do not lend or rent your chain saw without
the Operator’s manual and Safety manual.

NOTE

• For future reference, you should keep this
Operator’s manual and the Safety manual.

• If this Operator’s manual or the Safety manual
has become illegible or is lost, please purchase
a new one from your ECHO dealer.

WARNING

CAUTION

TECHNICAL DATA

MODEL CS-450P

Dimension L × W × H mm 400 × 252 × 278
Mass Power head, dry kg 5.1 Without chain and guide bar
Engine Type Air-cooled two-stroke single cylinder

Displacement mL (cm³) 45.0
Carburetor Diaphragm type

Magneto Flywheel magneto: CDI system
Spark plug NGK BPMR8Y
Starter 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 L 0.45

Oil Bar and chain ECHO bar and chain oil (or motor oil)

Tank capacity L 0.28

Guide bar and
saw chain

Lubrication Adjustable automatic oil pump

Engine speed Idle r/min 2700

Clutch engagement r/min 4000
Wide open throttle r/min 12000 - 13000

Standard Front hand guard, Rear hand guard,
features Anti-vibration device, Spiked bumper,

See page 22 for Chain and Guide Bar Combination

Throttle control lockout, Chain brake,
Chain catcher, Spark arrestor muffler

* Technical data subject to change without notice.

CS-450P

30

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.

31

CS-450P

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
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 two­stroke 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.

required to use two-stroke oil which meets the ISO-

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.

CS-450P

32

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 emission­related 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.ECHO­USA.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 • Spark Plug

• Catalytic Converter / Muffler Assembly • Carburetor (complete assembly or replaceable components)

• Choke • Fuel-Injection Assembly (or replaceable components)

• Fuel Tank • Fuel Cap Assembly

• 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.

33

CS-450P