Echo Blower X750010904 User Manual

Chain Saw  
Instruction Manual  
MODEL : CS-450  
warning  
Users of this equipment risk injury to themselves and others if the unit is used improperly  
and/or safety precautions are not followed. ECHO provides an operator’s manual and a  
safety manual. Both must be read and understood for proper and safe operation. Failure to  
do so could result in serious injury.  
X750010904  
01/12  
X7503196704  
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B. Other Safety Precautions  
1.Do not operate a chain saw with one  
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.  
hand! Serious injury to the operator,  
helpers, or bystanders may result from  
one-handed operation.  
A chain saw is intended for two-handed  
use.  
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.  
2.Do not operate a chain saw when you  
are fatigued.  
3.Use safety footwear, snug-fitting  
clothing and protective gloves.  
14.Keep the handles dry, clean, and free  
of oil or fuel mixture.  
Wear eye, hearing, and head  
protection devices.  
15.Operate the chain saw only in well  
ventilated areas.  
4.Use caution when handling fuel.  
Move the chain saw at least 3 m  
(10 feet) from the fueling point before  
starting the engine.  
16.Do not operate a chain saw in a tree  
unless you have been specifically  
trained to do so.  
5.Do not allow other persons to be near  
when operating the chain saw.  
17.All chain saw service, other than  
items listed in the Instruction manual  
maintenance instructions, should  
be performed by competent service  
personnel.  
6.Do not start cutting until you have a  
clear work area, secure footing, and  
a planned retreat path from the falling  
tree.  
(For example, if improper tools are  
used to remove the flywheel or if  
an improper tool is used to hold the  
flywheel in order to remove the clutch,  
structural damage to the flywheel could  
occur and could subsequently cause  
the flywheel to burst.)  
7.Keep all parts of your body away from  
the saw chain when the engine is  
running.  
8.Before you start the engine, make sure  
that the saw chain is not contacting  
anything.  
18.When transporting your chain saw, use  
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.  
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.  
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.  
Do not operate the chain saw with a  
loose or defective muffler.  
Do not remove the spark arrestor  
screen.  
11.Shut off the engine before setting the  
chain saw down.  
CS-450  
3
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CONTENTS  
RULES FOR SAFE OPERATION .......................................................................................................  
SYMBOLS AND SIGNS ......................................................................................................................  
EMISSION DATA ................................................................................................................................  
PACKING LIST....................................................................................................................................  
NOMENCLATURE OF PARTS ...........................................................................................................  
OPERATOR SAFETY .........................................................................................................................  
2
4
6
6
7
8
CORRECT USE OF CHAIN BRAKE................................................................................................... 10  
PREPARATION FOR USE.................................................................................................................. 11  
FUEL AND LUBRICANT ..................................................................................................................... 13  
OPERATION ....................................................................................................................................... 15  
CUTTING INSTRUCTION................................................................................................................... 18  
CHAIN AND GUIDE BAR COMBINATION.......................................................................................... 23  
MAINTENANCE AND CARE............................................................................................................... 24  
Carburetor Adjustment........................................................................................................................ 25  
- High Altitude Operation ................................................................................................................... 25  
SETTING THE SAW CHAIN ............................................................................................................... 29  
TROUBLESHOOTING ........................................................................................................................ 31  
STORAGE AFTER USE...................................................................................................................... 32  
TECHNICAL DATA.............................................................................................................................. 32  
WARRANTY STATEMENTS............................................................................................................... 33  
SERVICING INFORMATION............................................................................................................... 36  
This chain saw is designed for cutting wood or wood products. Do not cut solid metal, sheet metal, plastic  
or any non-wood materials.  
Specifications, descriptions and illustrative material in this literature are as accurate as known at the time  
of publication, but are subject to change without notice. Illustrations may include optional equipment and  
accessories, and may not include all standard equipment.  
SYMBOLS AND SIGNS  
CIRCLE AND SLASH SYMBOL  
This symbol means the specific action  
shown is prohibited. Ignoring these  
prohibitions can result in serious or  
fatal injury.  
DANGER  
The safety alert symbol accompanied by  
the word “DANGER” calls attention to an  
act or condition which WILL lead to serious  
personal injury or death if not avoided.  
NOTE  
WARNING  
This enclosed message provides tips for use,  
care and maintenance of the unit.  
The safety alert symbol accompanied by  
the word “WARNING” calls attention to an  
act or condition which CAN lead to serious  
personal injury or death if not avoided.  
IMPORTANT  
The enclosed message provides information  
necessary for the protection of the unit.  
CAUTION  
The safety alert symbol accompanied by  
the word “CAUTION” calls attention to an  
act or condition which may lead to minor or  
moderate personal injury if not avoided.  
CS-450  
4
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SYMBOL FORM  
Symbol form/shape Symbol description/application Symbol form/shape Symbol description/application  
Carefully read the Instruction  
manual  
Chain oil fill  
Wear eyes, ears and head  
protection  
Chain oil pump  
Chain oiler adjustment  
Chain brake operation  
Emergency stop  
Carburetor adjustment  
STOP  
- Low speed mixture  
Choke control “Cold Start”  
position (choke closed)  
Carburetor adjustment  
- High speed mixture  
Oil and gasoline mixture  
Carburetor adjustment  
- Idle speed  
DECALS  
CS-450  
WARNING!! Read and follow all  
safety precaution in the instruction  
manual. Failure to follow  
instructions could result in serious  
personal injury.  
TO AVOID KICKBACK  
1. Hold the chain saw firmly with both  
hands.  
2. Don’t let the nose of the guide bar  
contact any obstruction.  
3. Tip contact may suddenly move the  
guide bar upward and backward,  
which may cause serious injury.  
Locate these safety decals on your unit. Make sure  
the decals are legible and that you understand and  
follow the instructions on them. If a decal can-  
not be read, a new one can be ordered from your  
ECHO dealer.  
CS-450  
5
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Emission Data  
Emission control (Exhaust & EvaporativE)  
EPA 2010 and Later and/or C.A.R.B. TIER III  
The emission control system for the engine is EM (en-  
gine modification) and, if the second to last character  
of the Engine Family on the Emission Control Informa-  
tion label (sample below) is “C”, “K”, or “T”, the emis-  
sion control system is EM and TWC (3-way catalyst).  
The fuel tank/fuel line emission control system is EVAP  
(evaporative emissions). Evaporative emissions for  
California models may only be applicable to fuel tanks.  
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 hour 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.  
PACKING LIST  
The ECHO product you purchased has been fac-  
tory 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. Im-  
mediately notify your retailer or ECHO dealer of  
damaged or missing parts. Use the packing list to  
check for missing parts.  
ECHO Chain Saw  
Assembly Tool (s)  
Spiked Bumper  
5x12 mm Bolts  
Instruction manual  
Safety manual  
ECHO Power Blend X™  
2-stroke oil sample  
CS-450  
Guide bar  
Warranty registration  
card  
Kick Guard®  
Saw chain  
CS-450  
6
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NOMENCLATURE OF PARTS  
4
3
CS-450  
5
1
6
7
25  
8
9
15  
10  
2
11  
12  
13  
14  
4
24  
23  
22  
16  
17  
18  
19  
20  
21  
CS-450  
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NOMENCLATURE OF PARTS  
12. Spiked bumper - Device, fitted in front of the  
1.  
Instruction manual - Included with unit. Read  
before operation and keep for future reference to  
learn proper, safe operating techniques.  
guide bar mounting point, acting as a pivot when  
in contact with a tree or log.  
2.  
3.  
Safety manual - Describe operating and safety  
instructions for this chain saw.  
13. Guide bar - The part that supports and guides  
the saw chain.  
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.  
14. Saw chain - Chain, serving as a cutting tool.  
15. Bar tip guard - Anti-kickback device attached  
on the bar nose.  
This guard is used to lock the chain brake which is  
to stop the saw chain rotation.  
16. Cylinder cover - The cooling airflow grill. It cov-  
ers the cylinder, spark plug and silencer.  
4.  
Cleaner cover knob - Device for installing the air  
17. Front handle (for the left hand) - Support han-  
cleaner cover.  
dle located at the front of the engine housing.  
5.  
6.  
Air cleaner cover - Covers air filter.  
18. Oil tank cap - For sealing the oil tank.  
Purge pump - When starting engine, push purge  
pump 3 or 4 times.  
19. Starter handle - Pull handle slowly until starter  
engages then quickly and firmly. When engine  
starts, return handle slowly.  
7.  
8.  
9.  
Choke control knob - Device for enriching the  
fuel/air mixture in the carburetor to aid cold start-  
ing.  
DO NOT let handle snap back or damage to unit  
will occur.  
20. Fuel tank cap - For sealing the fuel tank.  
Rear hand guard - Extension on the lower part of  
the rear handle for protecting the hand from the  
chain if it breaks or degrooves.  
21. Throttle trigger - Device activated by the op-  
erator’s finger, for controlling the engine speed.  
Clutch cover - Protective cover to the guide bar,  
saw chain, clutch and sprocket when the chain  
saw is in use.  
22. Rear handle (for the right hand) - Support  
handle located towards the rear of the engine  
housing.  
23. Throttle trigger lockout - A safety lever which  
must be depressed before the throttle trigger  
can be activated in order to prevent the acciden-  
tal operation of the throttle trigger.  
10. Chain tension adjuster - Device to adjust chain  
tension.  
11. 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.  
24. Ignition switch - Device for connecting and dis-  
connecting the ignition system and thus allowing  
the engine to be started or stopped.  
25. Spark arrestor muffler or spark arrestor  
muffler with catalyst -The muffler or catalytic  
muffler controls exhaust noise and emission.  
The spark arrestor screen prevents hot, glow-  
ing particles of carbon from leaving the muffler.  
Keep exhaust area clear of flammable debris.  
OPERATOR SAFETY  
warning  
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from  
all openings.  
aLwaYS stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop  
before removing obstructions, clearing debris, or servicing unit.  
DO nOT start or operate unit unless all guards and protective covers are properly assembled to unit.  
nEVEr reach into any opening while the engine is running. Moving parts may not be visible through openings.  
CS-450  
8
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warning  
The ignition components of this machine generate an electromagnetic field during operation which may in-  
terfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemakers should  
consult with their physician and the pacemaker manufacturer before operating this machine. In the absence  
of such information, ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.  
• See a doctor if you feel tingling, numbness or pain in  
VIBRATION AND COLD  
your fingers, hands, wrists or arms. The sooner RSI/  
CTS is diagnosed, the more likely permanent nerve  
and muscle damage can be prevented.  
• 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.  
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.  
• Keep your body warm, especially the head and  
If this guideline is not followed, hearing loss can oc-  
cur.  
neck, feet and ankles and hands and wrists.  
• Maintain good blood circulation by performing vigor-  
ECHO recommends wearing hearing protection at all  
ous arm exercises during frequent work breaks and  
times.  
also by not smoking.  
• Limit the number of hours of operation. Try to fill  
WEAR PROPER CLOTHING  
each day with jobs where operating the chain saw,  
• Snug fitting durable clothing should be worn. Pants  
or other hand-held power equipment is not required.  
should have long legs, DO NOT WEAR SHORTS.  
• If you experience discomfort redness and swelling  
Do not wear loose fitting clothing, scarves, neckties,  
of the fingers, followed by whitening and loss of  
jewelry or any item that may become tangled in sur-  
feeling, consult your physician before further expos-  
rounding growth or moving parts.  
ing yourself to cold and vibration.  
• 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  
REPETITIVE STRESS INJURY  
• It is believed that over-using the muscles and ten-  
grip on the chain saw handles. The gloves also help  
reduce the transmission of machine vibration to your  
hands.  
dons 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  
HOT HUMID WEATHER  
high risk for developing a repetitive stress injury  
• Heavy protective clothing can increase operator  
(RSI).  
fatigue which may lead to heat stroke.  
• An extreme RSI condition is Carpal Tunnel Syn-  
Schedule heavy work for early morning, or late  
drome (CTS) which could occur when your wrist  
afternoon hours when temperatures are cooler.  
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 HOT SURFACES  
• During operation, the muffler or catalytic muffler and  
surrounding cover become hot.  
• Never suspend the saw on a lanyard with the engine  
• Avoid using your wrist in a bent, extended or twisted  
running.  
position.  
• Always use the saw from the right-hand side of your  
body - NEVER from the left side.  
• Always wear proper safety clothing to protect your  
lower body from sharp saw chain and hot muffler.  
• Always keep exhaust area clear of flammable debris  
• 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.  
during transportation or when storing, otherwise seri-  
ous property damage or personal injury may result.  
CS-450  
9
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SPARK ARRESTOR MUFFLER  
• The spark arrestor muffler controls the exhaust  
noise and prevents hot, glowing particles of  
carbon from leaving the muffler.  
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.  
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 Regula-  
tion SAE J335.  
Check with your local or state authorities for spe-  
cific regulations in your area.  
Failure to follow these requirements is a violation  
of the law.  
CORRECT USE OF CHAIN BRAKE  
Rotational kickback  
DANGER  
Kickback safety precaution for chain saw  
users: Kickback may occur when the nose  
or tip of the guide bar touches an object or  
when the wood closes in and pinches the  
saw chain in the cut.  
The installation of a chain brake may be mandatory  
by law or as stipulated by insurance regulations in  
your area of operation.  
You should inquire through local government of-  
fices, 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.  
Rotational kickback  
USA  
: ANSI Standard B175.1 - 2000  
Safety Requirement for chain saws  
Canada : CSA Standard Z 62.1 CHAIN SAWS  
WARNING  
ANSI Standard B175. 1 - 2000 stipulates that  
the brake shall stop the chain 0.12 seconds  
at an engine speed of 13500 r/min.  
It is the responsibility of the owner/operator  
to ensure that the brake is serviced, adjusted  
and tested strictly in accordance with the  
instructions as detailed herein in order  
to ensure that the brake performance is  
maintaind in compliance with the Standard  
B175. 1 - 2000.  
Chain moving downward at impact  
Linear kickback  
Pinch  
CS-450  
10  
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PREPARATION FOR USE  
WARNING  
Saw chain is sharp! Always wear gloves  
when handling assembly, otherwise serious  
personal injury may result.  
warning  
Using improper replacement components or remov-  
ing safety devices may result in serious or fatal  
injury.  
nOTE  
The machine may be delivered with guide bar,  
tip guard, and saw chain separated. Install  
guide bar, tip guard, and saw chain as follows.  
KICK GUARD® TO BAR INSTRUC-  
TIONS  
Bolt (A)  
Dimple (D)  
Tools Needed: Two 11 mm (7/16 in.) Wrenches.  
For saws with Kick Guard® P/N 2893201 and  
Symmetrical Low-Kick type (Double Guard)  
guide bars.  
Kick Guard®  
Rear hole (B)  
1. Install bolt (A) in rear hole (B) of Kick Guard®  
and through front hole (C) in guide bar.  
Recess (E)  
Front hole (C)  
2. IMPORTANT: Dimple (D) in Kick Guard® must  
engage recess (E) in guide bar.  
3. Tighten nut (F) and bolt (A) using 11 mm (7/16  
in.) wrenches until snug. Make certain Kick  
Guard® is flush against guide bar.  
Nut (F)  
Guide bar  
4. Tighten nut (F) 1/8 additional turn.  
5. Check to make certain Kick Guard® is tight on  
guide bar.  
GUIDE BAR AND SAW CHAIN IN-  
STALLATION/REMOVAL  
NOTE  
Brake lever  
• Move the chain brake lever (Front hand guard)  
fully rearward to remove or install the clutch  
cover to chain saw.  
(Front hand guard)  
Brake connector  
• Align the brake connector of the clutch cover to  
the groove on the side of the brake lever (Front  
hand guard).  
Clutch cover  
Two nuts  
1. Loosen air cleaner cover knob and remove air  
cleaner cover.  
2. Remove spark plug lead.  
3. Remove two clutch cover nuts and remove  
clutch cover.  
4. Remove bar and saw chain if necessary. See  
“Maintenance and Care” section for guide bar/  
saw chain maintenance procedures.  
Two bolts 5 × 12 mm  
5. For initial setup, install the spiked bumper on the  
Spiked bumper  
front of machine with two 5 × 12 mm bolts.  
CS-450  
11  
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Guide bar studs  
6. Mount guide bar on studs and slide toward  
clutch to make saw chain installation easier. In-  
stall chain with cutters on top of guide bar facing  
forward.  
Clutch  
Guide bar  
adjuster  
hole  
7. 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.  
Hole  
Nuts  
Pin  
Adjuster pin  
Clutch cover  
Brake band  
Brake connector  
8. 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.  
Unlock chain brake  
ADJUSTING CHAIN TENSION  
Direction to  
tension the  
chain  
IMPORTANT  
Always loosen clutch cover nuts before turning  
the chain tension adjuster, otherwise the clutch  
cover and tensioner will be damaged.  
1. Loosen air cleaner cover knob and remove air  
cleaner cover.  
Adjusting screw  
2. Remove spark plug lead.  
3. Loosen two clutch cover nuts, if necessary.  
4. Hold the bar nose up, and turn the adjuster  
screw clockwise until chain contacts underside  
of the bar.  
5. Tighten both nuts with the bar nose held up.  
Proper tension Improper tension  
6. Pull the chain around the bar by hand. Loosen  
the adjustment if you feel tight spots.  
7. When chain is properly tensioned, tighten clutch  
cover nuts securely - 20 to 23 N·m (175 to 200  
in. lb.).  
8. Keep chain properly tensioned at all times.  
nOTE  
All chains require frequent adjustments.  
CS-450  
12  
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FuEl anD lubricant  
warning  
Check fuel system for leaks due to fuel tank damage, especially if the unit is dropped. If damage or leaks are  
found, do not use unit, otherwise serious personal injury or property damage may occur. Have unit repaired by an  
authorized servicing dealer before using.  
NOTICE: Use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor perfor-  
mance, or severe engine damage and void the product warranty. Read and follow instructions in the Storage section of this  
manual.  
FuEl statEmEnt  
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, carburetors and other engine  
components.  
Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality. Gasoline may contain up to 10%  
Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol (wood alcohol) is NOT ap-  
proved.  
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must be used. Echo  
brand premium Power Blend XTM 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 J.A.S.O. FD certified oil, such as Echo premium Power Blend XTM,  
will void the two-stroke engine warranty.  
IMPORTANT  
Echo premium Power Blend XTM 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.  
Handling Fuel  
warning  
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 or RUNNING!  
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.  
• DO NOT overfill fuel tank. Wipe up spills immediately.  
• Securely tighten fuel tank cap and close fuel container after refueling.  
• Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.  
• Move at least 3m (10 ft.) from refueling location before starting the engine.  
CS-450  
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Mixing Instructions  
Fuel Mix Chart 50:1  
1. Fill an approved fuel container with half of the required  
amount of gasoline.  
2. Add the proper amount of 2-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.  
after use  
IMPORTANT  
• DO NOT store a unit with fuel in its tank. Leaks can occur.  
Return unused fuel to an approved fuel storage container.  
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.  
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.  
IMPORTANT  
Stored two-stroke fuel may separate. ALWAYS  
shake fuel container thoroughly before each use.  
CHAIN LUBRICANT  
Cap indication  
Fuel/oil tanks are indicated by the following  
illustrations.  
Proper lubrication of the chain while in operation reduces  
friction between the chain and the guide bar to a mini-  
mum 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.  
CS-450  
14  
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OPERATION  
warning  
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from  
all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a com-  
plete stop before removing obstructions, clearing debris, or servicing unit.  
warning  
Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause uncon-  
sciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is  
directed away from your face and body.  
warning  
Operation of this equipment may create sparks that can start fires. This unit is equipped with a spark arrestor to  
prevent discharge of hot particles from the engine. Metal blade use also can create sparks if the blade strikes  
rocks, metal, or other hard objects. Contact local fire authorities for laws or regulations regarding fire prevention  
requirements.  
warning  
The ignition components of this machine generate an electromagnetic field during operation which may interfere  
with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemakers should consult  
with their physician and the pacemaker manufacturer before operating this machine. In the absence of such  
information, ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.  
Throttle trigger lockout  
Purge pump  
WARNING  
• After choke control knob is pulled and then knob  
is returned to original position, throttle remains  
slightly open (latch condition).  
Throttle trigger  
Choke control knob  
Choke  
•The chain will attempt to rotate when  
engine is started with throttle latch engaged.  
•Do not start engine before chain brake is  
activated.  
CAUTION  
Chain brake  
• After starting the engine, squeeze throttle trigger  
slightly to release throttle latch, otherwise brake  
damage may occur.  
• Never use throttle latch for cutting.  
• Use the throttle latch only in starting.  
CS-450  
15  
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WHEN THE ENGINE IS COLD  
CAUTION  
Make sure the bar and chain are free from any  
obstruction when starting the chain saw.  
Chain brake  
• Move chain brake lever fully forward to lock chain  
brake before starting.  
• Fill the fuel tank with fuel mixture. Do not over fill.  
• Fill the chain oil tank with lubricant.  
Do not over fill.  
• Move ignition switch to “RUN” position.  
• Push purge pump 3 to 4 times or until fuel is visible in  
purge pump.  
Ignition switch  
• Pull choke control knob all the way out. (Choke posi-  
tion)  
Start / Run  
nOTE  
Do not pull starter rope out to the maximum pos-  
sible position.  
Do not allow recoil handle to snap back against the  
casing.  
• Securely hold the chain saw as shown and pull starter  
handle several times until first firing sound.  
Throttle trigger lockout Purge pump  
• Push choke control knob all the way in.  
• Pull starter handle to start the engine.  
• When engine starts, immediately squeeze throttle trig-  
ger, to release throttle latch.  
Throttle trigger  
Choke control knob  
Choke  
CAUTION  
Do not increase engine speed while chain brake is  
locked.  
nOTE  
If engine does not start after 5 pulls, repeat instruc-  
tions.  
Starter handle  
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  
• 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.  
Open choke  
• Securely hold the chain saw as shown and pull  
starter handle.  
nOTE  
If engine does not start after 5 pulls, use cold start  
procedure.  
CS-450  
16  
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RUNNING  
Unlock chain brake  
warning  
The saw chain should not move at idle, otherwise  
serious personal injury may result.  
nOTE  
If saw chain moves adjust carburetor according to  
“Carburetor Adjustment” instructions in this manual,  
or see your dealer.  
• 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.  
Ignition switch  
STOPPING  
STOP  
• 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.  
Throttle trigger  
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. See  
"Adjusting Chain Tension."  
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-450  
17  
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CUTTING INSTRUCTION  
GENERAL  
CAUTION  
• Read the ECHO “CHAIN SAW SAFETY MANUAL”  
included with your chain saw for additional  
cutting and safety instructions.  
• Wear suitable hearing protection such as  
earmuffs or earplugs to protect against  
objectionable or uncomfortable loud noises.  
• Do not let the tip of the bar touch anything while  
the engine is running.  
At cutting speed the chain is moving at a high  
rate of speed.  
Should the tip contact a limb or log while the  
chain is moving, the tip will be pushed upward  
with considerable force.  
This is known as kickback. Avoid it!  
In all circumstances the operation of the chain saw is a  
one-man job.  
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 cut-  
ting 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 cut-  
ting will actually be more difficult.  
nOTE  
Some material may adversely affect the housings of  
your ECHO chain saw.  
(Example: Palm Tree Acid, fertilizer, etc.) To avoid  
housing deterioration, carefully remove all packed  
saw dust around clutch and guide bar area and  
wash with water. Coat metal parts with light oil.  
Kickback  
CS-450  
18  
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FELLING THE TREE  
3 m (10 feet)  
Retreat  
warning  
Direction of fall  
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!  
45°  
45°  
Not this way  
Retreat  
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.  
Direction of fall  
Hinge  
5 cm (2 in.)  
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.  
First cut  
Felling cut  
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.  
5 cm (2 in.)  
Second cut  
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.  
One-third tree diameter  
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.  
3
2
1
CS-450  
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LIMBING  
Limbing a fallen tree is much the same as bucking.  
Never stand on the tree that you are limbing.  
When limbing, caution is the word.  
Be careful of the tip touching other limbs.  
Always use both hands.  
Don’t cut with the saw overhead or aligned vertically  
with your body. If the saw should kickback, you may not  
have enough control to prevent possible injury.  
BUCKING  
Bucking is the sawing of a log or fallen tree into smaller  
pieces.  
There are a few basic rules which apply to all bucking  
operations.  
Keep both hands on the handles at all times. Support  
logs if possible.  
When cutting on a slope or hillside, always stand uphill.  
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.  
Uphill position  
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.  
Finish cut  
First cut  
warning  
KiCKBaCK iS DangErOUS  
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.  
Board or flat stones  
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.  
CS-450  
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CHAIN BRAKE OPERATION  
• Set the lever in the unlocked position before  
starting to cut.  
Kickback motion  
• If the brake is tripped by kickback reaction, the  
chain will stop immediately. Release the throt-  
tle 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.  
Kickback  
• Hold the saw firmly by the handles and acceler-  
ate the engine to a fast idle.  
• Slowly operate the chain brake lever while hold-  
ing 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.  
Chain brake function  
When the lever is pushed forward, chain brake  
instantly stops the chain.  
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 emer-  
gencies.  
Chain brake unlock  
When the lever is fully pulled, toward the  
operator, brake is unlocked.  
When using throttle latch at starting, keep the  
chain brake locked.  
IMPORTANT  
Do not allow the saw to tip forward in order to  
avoid damage to the chain.  
CS-450  
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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:  
End of the guide bar may be placed at the  
height of about 50 cm (20 in.).  
1. Stop the engine.  
2. Hold the saw with the guide bar approximately  
50 cm (20 in.) above a wooden surface. Right  
hand should hold the rear handle, and left hand  
should hold the front handle.  
50 cm  
(20 in.)  
3. Release the front handle and drop the end of the  
guide bar against the wooden surface.  
4. The impact should lock the chain brake.  
IMPORTANT  
When checking the operation of the automatic  
chain brake, use a soft surface substance like  
wood to provide the impact so the chain is not  
damaged.  
Rear handle should be gripped lightly with the  
right hand.  
WINTER OPERATION  
Use the winter plug to prevent carburetor trouble in  
winter.  
Air cleaner cover  
Plug  
• Remove air cleaner cover. Remove plug from  
warm weather position, and install into cold  
weather “storage” position.  
Cold weather  
“storage” position  
Warm weather position  
NOTE  
For operation at normal temperature return the  
plug to its original place. (5°C, 41°F)  
It causes over heating of the engine.  
CS-450  
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CHAIN AND GUIDE BAR COMBINATION  
The following combinations are recommended for model CS-450.  
BAR  
LENGTH  
in (mm)  
SAW CHAIN  
GUIDE BAR  
ECHO P/N  
MODEL  
ECHO PART  
NO.  
PITCH  
LINKS  
GAUGE  
in (mm)  
16F0AD3366  
16F0AD3366  
16F0MD3366  
18F0AD3372  
18F0AD3372  
18F0MD3372  
20BPX66CQ  
33SL66CQ  
95VP66CQ  
20BPX72CQ  
33SL72CQ  
95VP72CQ  
20BPX78CQ  
33SL78CQ  
0.325  
(8.26)  
16 (406)  
66  
0.050  
CS-450  
0.325  
(8.26)  
18 (457)  
20 (508)  
0.050  
0.050  
72  
78  
0.325  
(8.26)  
20FOAD3378  
warning  
Use of replacement saw chain and/or guide bar other than that specified, or operation without the “tip guard” in place,  
may cause severe kickback resulting in serious injury.  
Only use replacement guide bar and saw chain that has been designated as meeting the ANSI B175.1 - 2000  
and/or CSA Z62.3 requirements. All of the guide bar and chain combinations listed above meet the ANSI  
B175.1-200 and/or CSA Z62.3 requirements.  
iMPOrTanT  
Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above.  
iMPOrTanT  
If your kick guard is damaged or lost, contact your Echo dealer for a replacement. For the name of the  
Refer to your Chain Saw Safety Manual for kick guard application information.  
Saw CHain  
gUiDE Bar  
(Low-kickback)  
(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.  
CaUTiOn  
Do not use replacement saw chain unless  
it has been designated as meeting the  
ANSI B175.1 - 2000 kickback performance  
requirements, when tested on the  
representative sample of chain saws below  
3.8 c.i.d. specified in ANSI B175.1 - 2000.  
• Hard nose guide bars of the same length and  
nose radius as a sprocket nose bar.  
nOTE  
LOW KICKBACK SAW CHAIN meets the  
kickback performance requirements of ANSI  
B175.1 - 2000 (safety requirements for gasoline-  
powered chain saws).  
CS-450  
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MAINTENANCE AND CARE  
warning  
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from  
all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a com-  
plete stop before removing obstructions, clearing debris, or servicing unit. Allow unit to cool before performing  
service. Wear gloves to protect hands from sharp edges and hot surfaces.  
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.  
MAINTENANCE INTERVALS  
REQ'D  
SKILL  
LEVEL  
DAILY OR  
BEFORE  
USE  
3 MONTHS  
OR 90  
HOURS  
COMPONENT/  
SYSTEM  
MAINTENANCE  
PROCEDURE  
EVERY  
REFUEL  
YEARLY 600  
HOURS  
Air Filter  
Inspect/Clean  
1
1
1
1
1
1
I / C *  
R *  
Automatic Oiler  
Oil Filter  
Inspect/Adjust  
Inspect/Replace  
Inspect/Replace  
Inspect/Replace  
Replace  
I
I
I/C *  
Fuel System  
Fuel Filter  
I (1) *  
I (1) *  
I *  
I *  
I / R *  
R *  
Fuel Cap Gasket  
Guide Bar & Sprocket  
Nose  
Inspect/Clean/Lubricate  
1
2
I / C *  
I
Inspect/Sharpen/Replace/  
Tensioning  
Saw Chain  
I *  
I *  
Sprocket  
Inspect/Replace  
Inspect/Clean  
Inspect/Clean  
2
1
2
2
2
1
1
Spark Plug  
Cooling System  
I / C / R *  
I / C  
Muffler Spark Arrestor Inspect/Clean/Replace  
Cylinder Exhaust Port Inspect/Clean/Decarbon  
I / C / R *  
I / C  
Recoil Starter Rope  
Screws/Nuts/Bolts  
Inspect/Clean  
I / C *  
I *  
Inspect/Tighten/Replace  
MAINTENANCE PROCEDURE LETTER CODES: I = INSPECT, R = REPLACE, C = CLEAN  
IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the  
frequency of required maintenance.  
MAINTENANCE PROCEDURE NOTES:  
(1) Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity.  
* Replacement is recommended based on the finding of damage or wear during inspection.  
CS-450  
24  
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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.  
Idle adjusting screw  
1. Before adjusting carburetor clean or replace air  
filter and muffler “Spark Arrestor Screen”.  
2. Make sure the bar and chain are properly ad-  
justed.  
Low speed needle (L)  
High speed needle (H)  
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:  
CARBURETOR ADJUSTMENT  
Engine Break-in  
New engines must be operated a minimum dura-  
tion of two tanks of fuel break-in before carbure-  
tor adjustments can be made. During the break-in  
period your engine performance will increase and  
exhaust emissions will stabilize. Idle speed can  
be adjusted as required.  
• 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.  
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.  
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.  
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.  
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 RPM.  
CAUTION  
When starting, idling adjustment speed  
should be adjusted not to rotate the saw  
chain. Correct idle speed is adjusted 2700  
RPM. Or 1/4 turn CCW from the point the  
chain stops moving.  
When you experience trouble with the  
carburetor, contact your dealer.  
CS-450  
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AIR FILTER  
Cleaner cover knob  
Spark plug  
Air cleaner cover  
• 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.  
Air filter cover  
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.  
Cylinder cover  
• In case of fuel leakage there is a danger of fire.  
Stop using the machine immediately and re-  
quest your dealer to inspect or replace.  
SPARK PLUG  
• Check periodically.  
• The standard spark gap is 0.65 mm  
(0.026 in.).  
• Correct the spark gap if it is wider or  
narrower than the standard gap.  
• Fastening torque: 15 to 17 N·m  
(130 to 145 in. lb.).  
0.65 mm (0.026 in.)  
FUEL FILTER  
• Check periodically.  
• Do not allow dust to enter fuel tank.  
• A clogged filter will cause difficulty in starting  
engine or abnormalities in engine performance.  
• Pull the fuel filter out through fuel inlet port with  
a piece of steel wire or the like.  
• 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  
Fuel filter  
Fuel tank cap  
Oil tank cap  
nOTE  
Federal EPA regulations require all model  
year 2012 and later gasoline powered engines  
produced for sale in the United States to be  
equipped with a special low permeation fuel sup-  
ply hose between the carburetor and fuel tank.  
When servicing model year 2012 and later equip-  
ment, only fuel supply hoses certified by EPA can  
be used to replace the original equipment supply  
hose. Fines up to $37,500 may be enforced for  
using an un-certified replacement part.  
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.  
CS-450  
26  
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GUIDE BAR  
• Clean before using.  
- Clean the groove of the guide bar with a small  
screwdriver.  
- Clean oil holes with a wire.  
Groove  
Oil hole  
Clutch  
(Sprocket)  
• 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  
Worn : 0.5 mm (0.020 in.)  
• A damaged sprocket will cause premature dam-  
age or wear of saw chain.  
- When the sprocket has worn out 0.5 mm  
(0.020 in.) 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  
Cylinder fins  
cooling air pass easily.  
MUFFLER SPARK ARRESTOR  
• Remove air cleaner cover and remove spark  
plug lead.  
Screen cover  
Muffler  
• 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.  
Spark arrestor screen  
Gasket  
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  
Increase  
Decrease  
Adjusting screw  
• 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 adjust-  
ment.  
CS-450  
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EXHaUST POrT CLEaning  
Parts Required: As needed: Muffler gasket  
1. Remove air cleaner cover and remove spark plug  
lead.  
2. Remove guide bar and saw chain. See "Guide Bar  
and Saw Chain Installation/Removal."  
3. Remove muffler support bracket (A).  
4. Place piston at top dead center. Remove muffler (B)  
and muffler gasket (C ).  
5. Use a wood or plastic scraping tool to clean depos-  
its from cylinder exhaust port.  
iMPOrTanT  
Never use a metal tool to scrape carbon from the  
exhaust port.  
a
Do not scratch the cylinder or piston when cleaning  
the exhaust port. Do not allow carbon particles to  
enter the cylinder.  
6. Inspect muffler gasket, and replace if damaged.  
7. Install muffler gasket and muffler.  
8. Tighten muffler mounting bolts (or nuts) to 60-95 in •  
lbf (70-110 kgf • cm).  
B
C
9. Install muffler support bracket (A).  
10. Install guide bar and saw chain. See "Guide Bar and  
Saw Chain Installation/Removal."  
11. Install spark plug lead and air cleaner cover.  
12. Start engine, and warm to operating temperature.  
Stop engine.  
13. Remove air cleaner cover and remove spark plug  
lead.  
14. Remove guide bar and saw chain. See "Guide Bar  
and Saw Chain Installation/Removal."  
15. Remove muffler support bracket.  
16. Re-tighten mounting bolts (or nuts) to specifications.  
17. Install muffler support bracket.  
18. Install guide bar and saw chain. See "Guide Bar and  
Saw Chain Installation/Removal."  
19. Install spark plug lead and air cleaner cover.  
CS-450  
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SETTING THE SAW CHAIN  
Preset tie strap  
Left hand cutter  
Drive link  
Top plate  
Side plate  
Tie strap  
Guard link  
Depth  
guage  
Right hand cutter  
Important points for proper maintenance of saw  
chain:  
• Keep the cutters sharp at all times.  
• Keep the left and the right cutters properly  
aligned.  
- Note that blunt or irregular cutters will result in  
poor cutting performance, increased vibration  
of chains and premature breakage of the saw  
chain.  
Sharpen lower edge  
• Drive link serves to remove sawdust from the  
groove of the guide bar.  
Keep the lower edge of the drive link sharp  
where indicated.  
33SL : 25°  
20BPX, 95VP : 30°  
SETTING SAW CHAIN  
Proper filing tools for setting saw chain are avail-  
able from your Echo dealer.  
Keep this angle  
• For setting saw chain, round file (33SL : 4.5 mm  
dia. or 20BPX, 95VP : 3/16 in.) and flat file are  
used.  
Push file as shown  
• To keep correct position and correct angle,  
use the file holder (Sure Sharp®).  
10°  
Hold the file tipped 10° upward  
CS-450  
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1/5  
One fifth of file diameter remains  
above cutter edge  
• Place the depth gauge tool firmly on guide  
bar so that depth gauge protrudes.  
Depth gauge tool  
Then file top of depth gauge with the flat file until  
flat with top of the depth gauge tool.  
Remove until  
flat with tool  
- Be sure to round off the front edge of the  
depth gauge.  
Round off  
the edge  
Properly filed cutters are shown in illustration.  
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.  
33SL : 25°  
20BPX, 95VP : 30°  
Top plate filing angle  
- If the saw chain becomes soiled with resin, for  
instance, clean it with kerosene and soak in it  
oil.  
20BPX :55°  
33SL, 95VP :60°  
0.64 mm (0.025 in.)  
NOTE  
These angles are referred to as Oregon 20BPX,  
33SL, or 95VP.  
To sharpen other follow chain manufacturer’s  
instruction.  
Parallel  
Depth gauge  
Top plate cutting angle  
CS-450  
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TROUBLESHOOTING  
EnginE PrOBLEM TrOUBLESHOOTing CHarT  
Problem  
Check  
Status  
Cause  
remedy  
Clean or replace  
Fuel at carburetor  
No fuel at carburetor Fuel strainer clogged  
Fuel line clogged  
Clean or replace  
Carburetor  
See your Echo dealer  
Fuel at cylinder  
No fuel at cylinder  
Carburetor  
See your Echo dealer  
Muffler wet with fuel Fuel Mixture too rich  
Open choke  
Engine  
cranks -  
starts hard/  
doesn't  
Clean/replace air filter  
Adjust carburetor  
See your Echo dealer  
Spark at end  
of plug wire  
No spark  
No spark  
Stop switch off  
Electrical problem  
Interlock switch  
Turn switch to ON  
See your Echo dealer  
See your Echo dealer  
start  
Spark at plug  
Spark gap incorrect  
Covered with carbon  
Fouled with fuel  
Adjust to .65mm (0.026 in.)  
Clean or replace  
Clean or replace  
Plug defective  
Replace plug  
Air filter  
Air filter dirty  
Normal wear  
Clean or replace  
Fuel filter  
Fuel filter dirty  
Contaminants/residues in Replace  
fuel  
Fuel vent  
Fuel vent plugged  
Contaminants/residues in Clean or replace  
fuel  
Engine runs,  
but dies or  
does not  
accelerate  
properly  
Spark Plug  
Carburetor  
Plug dirty/worn  
Normal wear  
Clean and adjust or replace  
Improper adjustment Vibration  
Adjust  
Clean  
Cooling System  
Cooling system  
dirty/plugged  
Extended operation in  
dirty/dusty locations  
Spark Arrestor  
Screen  
Spark arrestor  
screen plugged  
Normal wear  
Replace  
Engine does  
not crank  
N/A  
N/A  
Internal engine problem  
See your Echo dealer  
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.  
CS-450  
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STORAGE AFTER USE  
• Inspect and adjust every part of the chain saw.  
WARNING  
Do not store in an enclosure where fuel fumes  
may accumlate or reach an open flame or spark.  
- Completely clean every part and repair if neces-  
sary.  
- Apply thin coating of oil on metal parts to prevent  
rust.  
• Remove chain and guide bar.  
CAUTION  
• Drain fuel tank completely. Press purge bulb 6 - 7  
times to remove remaining fuel from carburetor then  
drain the tank again. Close choke, start and run the  
engine until it stops due to lack of fuel.  
• Allow engine to cool then remove the spark plug and  
pour 7 cc (1/4 oz.) of fresh, clean, two-stroke engine  
oil into the cylinder through the spark plug hole.  
• Store in a dry area, free from dust.  
Do not lend or rent your chain saw without the  
Instruction manual and Safety manual.  
NOTE  
• For future reference, you should keep this Instruction  
manual and the Safety manual.  
• If this Instruction manual or the Safety manual has  
become illegible or is lost, please contact your ECHO  
TECHNICAL DATA  
MODEL  
CS-450  
Dimension  
Mass  
L × W × H  
mm  
kg  
400 × 252 × 278 (15.7 in. × 9.9 in. × 10.9 in.)  
5.1 (11.2 lb.) Without chain and guide bar  
Air-cooled two-stroke single cylinder  
45.0 (2.746 c.u in.)  
Power head, dry  
Type  
Engine  
Displacement  
mL (in3)  
Carburetor  
Magneto  
Spark plug  
Starter  
Diaphragm type  
Flywheel magneto: CDI system  
NGK BPM8Y  
Recoil starter  
Power transmission  
Automatic centrifugal clutch  
Fuel  
Mixture ratio  
50 : 1 ratio with ECHO Power Blend X™, ISO-L-  
EGD (ISO/CD 13738), JASO M345-FD  
two- stroke, air-cooled engine oil.  
Gasoline  
Use 89 octane unleaded.  
Donotusefuelcontainingmethylalcohol,morethan  
10 % ethyl alcohol or 15 % MTBE.  
Do not use alternative fuels such as E-15 or E-85.  
Tank capacity  
Bar and chain  
Tank capacity  
L
L
0.45 (15.2 US. fl. oz.)  
Oil  
ECHO bar and chain oil (or motor oil)  
0.28 (9.5 US. fl. oz.)  
Guide bar and  
See page 23 for Chain and Guide Bar Combination  
saw chain  
Lubrication  
Adjustable automatic oil pump  
Engine speed Idle  
Clutch engagement  
Wide open throttle  
r/min  
r/min  
r/min  
2,700  
4,000  
12,500  
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  
* Technical data subject to change without notice.  
CS-450  
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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 ONLYAPPLICABLE TO ECHO PRODUCTS SOLD BYAUTHORIZED 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 fill-  
ing 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 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 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.  
CS-450  
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PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES  
• 90-day residential, or non-income producing warranty  
• 30-day commercial, institutional, agricultural, industrial, income producing, or rental application warranty  
ATTENTION TWO-STROKE ENGINE POWER PRODUCT OWNERS  
This ECHO two-stroke engine power product is a quality-engineered unit which has been manufactured to exact tolerances to provide superior  
performance. To help ensure the performance of the unit, it is required to use two-stroke oil which meets the ISO-L-EGD Standard per ISO/CD  
13738 and JASO M345FD Standards. ECHO Power Blend™ Two-Stroke Oil is a premium two-stroke oil specifically formulated to meet ISO-  
L-EGD (ISO/CD 13738) and JASO M345FD 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 WARRANTY 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 M345FD  
Standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD compliant and JASO M345FD registered  
oil, will void the two-stroke engine limited warranty. ECHO Power Blend™ Two-Stroke Oil meets the ISO-L-EGD and JASO M345FD  
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 operators 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 WARRANTIES  
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.  
99922201032  
11/18/2011  
CS-450  
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ECHO INCORPORATED EMISSION CONTROL WARRANTY STATEMENT  
FOR ECHO AND SHINDAIWA BRANDS  
The Environmental ProtectionAgency (EPA) and the CaliforniaAir Resources Board (C.A.R.B.) and ECHO Incorporated (ECHO Inc.) are pleased  
to explain the emission control system warranty on your 2010 and later equipment/small off-road engine (SORE). New equipment/SORE must be  
designed, built and equipped to meet stringent EPA and C.A.R.B. anti-smog standards. ECHO Inc. must warrant the emission control system on  
your equipment/SORE for the periods of time listed below, provided there has been no abuse, neglect or improper maintenance of your equipment/  
SORE. Your emission control system may include parts such as: carburetor, fuel-injection system, ignition system, catalytic converter/muffler, fuel  
tank, fuel feed lines, fuel cap assembly, spark plug, air filters, and other associated components. Where a warrantable condition exists, ECHO  
Inc will repair your equipment/SORE at no cost to you including diagnosis, parts and labor. The Emission Control System warranty is extended  
to the original owner including all subsequent owners.  
MANUFACTURER'S WARRANTY COVERAGE:  
The emission control system is warranted for 2 years or the length of the ECHO Inc. warranty, whichever is longer. If any emission-related part  
on your equipment is defective, the part will be repaired or replaced by ECHO Inc. or its Authorized Service Representative.  
OWNER'S WARRANTY RESPONSIBILITIES:  
As the equipment/SORE owner, you are responsible for the performance of the required maintenance listed in your Operator's Manual. ECHO  
Inc. recommends that you retain all receipts covering maintenance on your equipment/SORE however, ECHO Inc. cannot deny warranty solely  
for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance. As the equipment/SORE owner, you should be  
aware that ECHO Inc. may deny you warranty coverage if your equipment/SORE or a part has failed due to abuse, neglect, improper maintenance  
or unapproved modifications.  
You are responsible for presenting your equipment/SORE to an ECHO Inc. authorized service representative as soon as a problem exists. The  
warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If a warrantable condition exists and there is no  
Authorized Dealer within 100 miles, ECHO Inc. will pay to ship the unit to the nearest authorized dealer. If you have questions regarding your  
warranty coverage, you should contact ECHO Inc. at 1-800-673-1558, web site WWW.ECHO-USA.COM or contact Shindaiwa at 1-877-986-  
7783, web site WWW.SHINDAIWA.COM.  
WHAT DOES THIS WARRANTY COVER?  
ECHO Inc. warrants that your equipment/SORE was designed, built and equipped to conform with applicable EPA and C.A.R.B. emissions  
standards and that your equipment/SORE is free from defects in material and workmanship that would cause it to fail to conform with applicable  
requirements for 2 years or the length of the ECHO Inc. warranty, whichever is longer. The warranty period begins on the date the product is  
purchased by an end user.  
HOW WILL A COVERED PART BE CORRECTED?  
If there is a defect in a part covered by this warranty, any ECHO Inc. Authorized Service Dealer will correct the defect. You will not have to pay  
anything to have the part adjusted, repaired or replaced. This includes any labor and diagnosis for warranted repairs performed by the dealer. In  
addition, engine parts not expressly covered under this warranty but whose failure is a result of a failure of a covered part will be warranted.  
WHAT PARTS ARE COVERED?  
Any applicable emission related part not scheduled for "required maintenance" will be repaired or replaced within the warranty period. The repaired  
or replaced part will be warranted for the remaining ECHO Inc. warranty period.  
Any warranted part that is scheduled only for regular inspection in the written instructions supplied is warranted for the warranty period stated  
above. Any such part repaired or replaced under warranty will be warranted for the remaining ECHO Inc. warranty period.  
Any emission related part scheduled for replacement during "required maintenance" is warranted for the period of time prior to the first scheduled  
replacement point for that part. Any such part repaired or replaced under warranty shall be warranted for the remainder of the period prior to the  
first scheduled replacement point for that part.  
Any manufacturer-approved replacement part may be used in the performance of any warranty maintenance or repairs on emission related parts,  
and must be provided without charge if the part is still under warranty.  
Any replacement part that is equivalent in performance and durability may be used in non-warranty maintenance or repairs, and shall not reduce  
the warranty obligations of the manufacturer.  
Throughout the equipment/SORE warranty period, ECHO Inc. will maintain a supply of warranted parts sufficient to meet the expected demand  
for such parts.  
SPECIFIC EMISSION RELATED WARRANTED PARTS:  
• Electronic Ignition System  
• Catalytic Converter / Muffler Assembly  
• Choke  
• Spark Plug  
• Carburetor (complete assembly or replaceable components)  
• Fuel-Injection Assembly (or replaceable components)  
• Fuel Cap Assembly  
• Fuel Tank  
• Air Filter  
• Fuel Feed Line (and associated clamps/connectors as applicable)  
WHAT IS NOT COVERED?  
Any failure caused by abuse, neglect, improper maintenance, unapproved modifications, use of unapproved add-on parts/modified parts or  
unapproved accessories.  
99922201033  
01/2010  
This Emission Control Warranty is valid only for the U.S.A., it's Territories, and Canada.  
CS-450  
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sErvicing inFormation  
parts/sErial numbEr  
Genuine ECHO Parts and ECHO REPOWER™ Parts and Assemblies  
for your ECHO products are available only from an Authorized ECHO  
Dealer. When you do need to buy parts always have the Model Num-  
ber, Type and Serial Number of the unit with you. You can find these  
numbers on the engine housing. For future reference, write them in the  
space provided below.  
Model No. __________________SN. ___________________  
sErvicE  
Service of this product during the warranty period must be performed  
by an Authorized ECHO Service Dealer. For the name and address of  
the Authorized ECHO Service Dealer nearest you, ask your retailer or  
call: 1-800-432-ECHO (3246). Dealer information is also available on  
our Web Site. When presenting your unit for Warranty service/repairs,  
proof of purchase is required.  
DEaLEr? Call  
1-800-432-ECHO  
1-800-432-3246  
or  
Echo consumEr proDuct support  
If you require assistance or have questions concerning the applica-  
tion, operation or maintenance of this product you may call the ECHO  
Consumer Product Support Department at 1-800-673-1558 from 8:30  
am to 4:30 pm (Central Standard Time) Monday through Friday. Before  
calling, please know the model and serial number of your unit.  
COnSUMEr PrODUCT  
SUPPOrT  
1-800-673-1558  
8:30 - 4:30 Mon - Fri C.S.T.  
warranty rEgistration  
To ensure trouble free warranty coverage it is important that you regis-  
the warranty registration card supplied with your unit. Registering your  
product confirms your warranty coverage and provides a direct link  
between you and ECHO if we find it necessary to contact you.  
aDDitional or rEplacEmEnt manuals  
Replacement Operator, Safety Manuals, and Parts Catalogs are available from your ECHO dealer or at www.echo-  
usa.com or by contacting ECHO Inc., 400 Oakwood Road, Lake Zurich, IL 60047 (800-673-1558). Always check the  
ECHO Web Site for updated information.  
Safety Videos are available from your Echo dealer. A $5.00 shipping charge will be required for each video.  
ECHO, inCOrPOraTED  
400 OakwOOd ROad  
Lake ZuRich, iL 60047-1564  
C05812001001/C05812999999  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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