Echo Chainsaw CS 303T User Manual

x7722271404 / x772000164

CS-303T

CHAIN SAW

Instruction Manual

Burn Hazard

The muffler or catalytic muffler and surrounding cover may become extremely hot.

Always keep clear of exhaust and muffler area, otherwise serious personal injury may

occur.

The engine exhaust from this product contains chemicals known to the State of California to cause

cancer, birth defects or other reproductive harm.

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.

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.

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CS-303T

PACKING LIST

The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging

restrictions, guide bar and saw chain installation and other assembly may be necessary.

After opening the carton, check for damage. Immediately notify your retailer or ECHO dealer of damaged or

missing parts. Use the packing list to check for missing parts.

*Some Echo units may be factory pre-assembled. Assembly tools are not supplied with these units.

____ - 1 - Power Head

____ - 1, Instruction manual

____ - 1, Safety Manual

____ - 1, Emission Control Warranty Statement

____ - 1, Warranty Registration Card

____ - 1, Echo Power Blend X^™2-Stroke Oil Sample

*____ - Assembly Tool(s) (If necessary)

*____ - 1, Guide bar

*____ - 1, Saw chain

*____ - 1, Tip Guard Assembly

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SAFETY

CS-303T

SAFETY

Rules For Safe Operation

Kickback Safety Precautions for Chain Saw Users

For more information

scan this QR code.

KICKBACK may occur when the nose or tip of the guide bar

touches an object, or when the wood closes in and pinches

the saw chain in the cut.

Tip contact in some cases may cause a lightning fast reverse

REACTION, Kicking the guide bar up and back towards the

operator. Pinching the saw chain along the top of the guide bar

may push the guide bar rapidly back towards the operator.

Either of these reactions may cause you to lose control of the

saw which could result in serious personal injury.

Rotational kickback

The tip guard device is not installed on the guide bar when you

purchase your ECHO chain saw. The tip guard can be used in a

majority of cutting operations, and is especially recommended

for beginners, homeowners, or chain saw novices. Most cutting

operations can be accomplished with the tip guard in place.

Rotational kickback

Do not rely exclusively upon the safety devices built into your

saw. As a chain saw user, you should take several steps to keep

your cutting jobs free from accident or injury.

Chain moving downward at impact

Kickback Danger Zone

1. With a basic understanding of kickback, you can reduce or

eliminate the element of surprise. Sudden surprise

contributes to accidents.

2. Keep a good firm grip on the saw with both hands, the right

hand on the rear handle, and the left hand on the front

handle, when the engine is running. Use a firm grip with

thumbs and fingers encircling the chain saw handles. A firm

grip will help you reduce kickback and maintain control of

the saw. Don’t let go.

3. Make sure that the area in which you are cutting is free from

obstructions. Do not let the nose of the guide bar contact a

log, branch, or any other obstruction which could be hit

while you are operating the saw.

Linear kickback

Pinch

4. Cut at high engine speeds.

5. Do not overreach or cut above shoulder height.

Kickback

6. Follow manufacturer’s sharpening and maintenance

instructions for the saw chain.

7. Only use replacement bars and chains specified by the

manufacturer or the equivalent.

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CS-303T

SAFETY

Correct Use Of Chain Brake

CHAIN BRAKE OPERATION

Locked

• 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

Unlocked

• 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.

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

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 RPM's while the chain brake is locked.

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.

USA: ANSI Standard B175.1 Safety Requirement for chain saws

ANSI Standard B175.1 stipulates that the brake shall stop the chain 0.12 seconds at an engine speed

of 13,500 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 here in order to ensure

that the brake performance is maintained in compliance with the Standard B175.1.

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SAFETY

CS-303T

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.

55 cm

(22 in.)

2. Hold the saw with the guide bar approximately 55 cm (22

in.) above a wooden surface. Right hand should hold the

rear handle, and left hand should hold the front handle.

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.

When checking the operation of the automatic chain brake, use

a soft surface substance like wood to absorb the impact so the

chain is not damaged.

Other Safety Precautions

1. Do not operate a chain saw with one hand! Serious injury to the operator, helpers, bystanders, or any

combination of these persons may result from one-handed operation. A chain saw is intended for

two-handed use.

2. Do not operate a chain saw when you are fatigued.

3. Use safety footwear, snug-fitting clothing and protective gloves. Wear eye, hearing, and head protection

devices.

4. Use caution when handling fuel. Move the chain saw at least 3 m (10 feet) from the fueling point before

starting the engine.

5. Do not allow other persons to be near the chain saw when starting or cutting with the chain saw. Keep

bystanders and animals out of the work area.

6. Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the

falling tree.

7. Keep all parts of your body away from the saw chain when the engine is running.

8. Before you start the engine, make sure that the saw chain is not contacting anything.

9. Carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the muffler

away from your body.

10. Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely

assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.

11. Shut off the engine before setting the chain saw down.

12. Use extreme caution when cutting small size brush and saplings because slender material may catch

the saw chain and be whipped toward you or pull you off balance.

13. When cutting a limb that is under tension, be alert for spring-back so that you will not be struck when the

tension in the wood fibers is released.

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CS-303T

SAFETY

14. Keep the handles dry, clean, and free of oil or fuel mixture.

15. Operate the chain saw only in well ventilated areas.

16. Do not operate a chain saw in a tree unless you have been specifically trained to do so.

17. All chain saw service, other than items listed in the Instruction manual maintenance instructions, should

be performed by competent service personnel. (For example, if improper tools are used to remove the

flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch, structural

damage to the flywheel could occur and could subsequently cause the flywheel to burst.)

18. When transporting your chain saw, use the appropriate guide bar scabbard.

19. Spark arrestor mufflers approved to SAE Standard J335 are standard on ECHO chain saws to reduce

the possibility of forest fires. Do not operate the chain saw with a loose or defective muffler. Do not

remove the spark arrestor screen.

• 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.

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.

Using improper replacement components or removing safety devices may result in serious or fatal

injury.

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.

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SAFETY

CS-303T

Personal Condition and Safety Equipment

Users of this product risk injury to themselves and others if the unit is used improperly and/or safety

precautions are not followed. Proper clothing and safety gear must be worn when operating unit.

Physical Condition

Your judgment and physical dexterity may not be good:

• if you are tired or sick,

• if you are taking medication,

• if you have taken alcohol or drugs.

Operate unit only if you are physically and mentally well.

Eye Protection

Eye protection that meets ANSI Z87.1, CE, or CSA Z94.3 requirements must be worn whenever you operate

the unit.

Hand Protection

Wear no-slip, heavy duty work gloves to improve your grip on the handles. Gloves also reduce the

transmission of machine vibration to your hands.

Breathing Protection

Wear a face mask to protect against dust.

Hearing Protection

ECHO recommends wearing hearing protection whenever unit is used.

Proper Clothing

Wear snug fitting, durable clothing;

• Pants should have long legs, shirts with long sleeves.

• DO NOT WEAR SHORTS,

• DO NOT WEAR TIES, SCARVES, JEWELRY, or clothing with loose or hanging items that could become

entangled in moving parts or surrounding growth.

Wear sturdy work shoes with nonskid soles;

• DO NOT WEAR OPEN TOED SHOES,

• DO NOT OPERATE UNIT BAREFOOTED.

Wear no-slip, heavy duty work gloves.

Keep long hair away from engine and air intake. Retain hair with cap or net.

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.

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CS-303T

SAFETY

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.

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 sensations, 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, neck, feet, ankles,

hands, and wrists.

• Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks, and

also by not smoking.

• Limit the hours of operation. Try to fill each day with jobs where operating the unit or other hand-held

power equipment is not required.

• If you experience discomfort, redness, and swelling of the fingers followed by whitening and loss of feeling,

consult your physician before further exposing yourself to cold and vibration.

Repetitive Stress Injuries

It is believed that overusing the muscles and tendons of the

fingers, hands, arms, and shoulders may cause soreness,

swelling, numbness, weakness, and extreme pain in those

areas. 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. Instead try to maintain a straight wrist

position. Also, when grasping, use your whole hand, not just the thumb and index finger.

• Take periodic breaks to minimize repetition and rest your hands.

• Reduce the speed and force with which you do the repetitive movement.

• Do exercise to strengthen the hand and arm muscles.

• Immediately stop using all power equipment and consult a doctor if you feel tingling, numbness, or pain in

the fingers, hands, wrists, or arms. The sooner RSI/CTS is diagnosed, the more likely permanent nerve

and muscle damage can be prevented.

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SAFETY

CS-303T

All over head electrical conductors and communications wires can have electricity flow with high

voltages. This unit is not insulated against electrical current. Never touch wires directly or indirectly,

otherwise serious injury or death may result.

Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains

poisonous emissions and can cause serious injury or death.

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CS-303T

SAFETY

Symbols and Signs

Symbol form/shape

Symbol description/application

Symbol form/shape

Symbol description/application

WARNING!!

Read and follow all safety

precaution in the instruction

manual. Failure to follow

instructions could result in serious

personal injury.

Choke control “Cold Start” position

(choke closed)

Wear eyes, ears and head

protection

Oil and gasoline mixture

Tip contact may cause the guide

bar to move suddenly upward and

backward, which may cause

serious injury

Chain oil fill

Chain oiler adjustment

Purge pump

Contact of the guide bar tip with

any object should be avoided

Both of the operator’s hands must

be used to operate the chain saw

Hot Surface

Carburetor Adjustment - Low

speed mixture

Chain brake operation

Emergency stop

Carburetor Adjustment - High

speed mixture

Carburetor Adjustment - Idle

speed

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EMISSION CONTROL (EXHAUST / EVAPORATIVE)

Manual Safety Symbols and Important Information

CS-303T

Throughout this manual and on the product itself, you will find safety alerts and helpful, informational

messages preceded by symbols or key words. The following is an explanation of those symbols and key

words and what they mean to you.

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.

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.

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.

The enclosed message provides information necessary for the protection of the unit.

Note: This enclosed message provides tips for use, care and maintenance 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.

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 (engine modification)

and, if the second to last character of the Engine Family on the Emission

Control Information label (sample below) is “C”, “K”, or “T”, the emission

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 are only 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 50 or 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.

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CS-303T

DESCRIPTION

Locate the safety decal(s) on your unit. Make sure the decal(s) 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. See

PARTS ORDERING instructions for specific information.

United States

Canada

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DESCRIPTION

CS-303T

1. Chain Brake Lever/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.

2. Air cleaner cover - Covers air cleaner.

3. Guide bar - The part that supports and guides the saw chain.

4. Tip guard - Anti-kickback device attached to the bar nose.

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

6. Chain tension adjuster - Device to adjust chain tension.

7. 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.

8. Chain Brake/Sprocket Guard - Protective cover for the chain brake, guide bar, saw chain, clutch, and

sprocket when the chain saw is in use.

9. Muffler Cover - Cover the muffler to protect operator from hot surface of muffler.

10. Safety Lanyard - If working off the ground the operator must be trained in safe climbing techniques and

use of all recommended safety equipment.

11. Control lever (choke/ignition switch) - Device for connecting and disconnecting the ignition system

and allowing the engine to be started or stopped. Lever also activates choke.

12. Throttle trigger lockout - A safety lever which must be depressed before the throttle trigger can be

activated. Prevents accidental operation of the throttle trigger.

13. Throttle lock button - Device for temporality setting the throttle in a partially open position to aid

starting.

14. Front support handle (for the left hand) - Support handle located at the front of the engine housing.

15. Throttle trigger - Device activated by the operator’s finger, for controlling the engine speed. Also

releases fast idle throttle latch when squeezed and released immediately after starting engine.

16. Throttle control handle (for the right hand) - Handle located above the engine housing.

17. Spark plug - Provides spark to ignite fuel mixture.

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

19. 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.

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

21. Choke control knob - Device for enriching the fuel/air mixture in the carburetor to aid cold starting. Also

activates fast idle throttle latch.

22. Purge pump - When starting engine, push purge pump 3 or 4 times.

CHAIN SAW TERMS

1. Fast Idle -Throttle setting that causes engine to operate at a faster speed for easier starting.

2. Throttle Latch - Device that sets idle speed to fast idle when choke control is operated.

3. Chain Brake - Stops the saw chain.

4. Drive Sprocket - Drives saw chain.

5. Clutch - Turns drive sprocket when engine rpm is fast enough to provide the power needed for cutting.

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CS-303T

DESCRIPTION

Preparation For Use

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

may result.

Note: The machine may be delivered with guide bar, tip guard, and

For more information

saw chain separated. Install guide bar, tip guard, and saw

scan this QR code.

chain as follows.

Tip Guard to Bar Instructions

Tools Needed: Two 11 mm (7/16 in.) Wrenches. For saws with tip

guard P/N 2894901 and Symmetrical or Asymmetrical

Low-Kick type (Double Guard) guide bars.

1. Install bolt (A) in rear hole (B) of tip guard and through front

hole (C) in guide bar.

2. IMPORTANT: Dimple (D) in tip guard must engage recess (E)

in guide bar.

3. Securely tighten nut (F) and bolt (A).

Guide Bar and Saw Chain Installation/Removal

For more information

scan this QR code.

1. Release the cylinder cover latches, and remove the cylinder

cover.

2. Remove spark plug lead.

3. Remove sprocket guard nuts (A) and remove sprocket guard

(B).

4. Remove guide bar and saw chain if necessary.

Note: See “Maintenance and Care” section for guide bar/saw chain

maintenance procedures.

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DESCRIPTION

CS-303T

5. Unlock the chain brake, and mount guide bar on studs (C) and

slide toward sprocket (E) to make saw chain installation easier.

Install chain with cutters on top of guide bar facing forward.

6. Install the sprocket guard over the guide bar studs. Ensure

chain tension adjuster pin (F) fits into the guide bar adjuster

hole (D). Tighten sprocket guard nuts finger tight.

7. Adjust saw chain tension, as instructed in “Adjustment, Chain

Tension”.

Adjusting Chain Tension

For more information

scan this QR code.

Always loosen sprocket guard nuts before turning the chain tension

adjuster, otherwise the sprocket guard and tensioner will be

damaged.

1. Release the cylinder cover latches, and remove the cylinder

cover. Remove spark plug lead.

2. Loosen sprocket guard nuts.

3. Hold the bar nose up, and turn the adjuster screw (A) clockwise

until chain contacts underside of the bar.

4. Tighten nuts with the bar nose held up.

5. Pull the chain around the bar by hand. Loosen the adjustment if

you feel tight spots.

Tighten guide bar nuts to 20 to 23 N•m (175 to 200 in•lbf). DO

NOT over-tighten nuts. Damage to saw may result.

6. Assemble components in reverse order.

7. Keep chain properly tensioned at all times.

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CS-303T

OPERATION

Note: All chains require frequent adjustments.

OPERATION

Fuel

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.

Fuel Requirements

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 approved. ECHO brand Power Fuel^™is 93 octane, ethanol-free fuel

premixed with ECHO Red Armor^®engine oil at 50:1 ratio. Use of ECHO Power Fuel^™is recommended to

extend engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines.

Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards

must be used. Echo brand premium Power Blend X^™Universal 2-Stroke Oil meets these standards. Engine

problems due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and

J.A.S.O. FD certified oil, such as Echo premium Power Blend X^™, will void the two-stroke engine warranty.

Echo premium Power Blend X^™Universal 2-Stroke Oil may be mixed at 50:1 ratio for application in all Echo

engines sold in the past regardless of ratio specified in those manuals.

Handling Fuel

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!

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OPERATION

CS-303T

• 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.

Mixing Instructions

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.

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.

For more information

scan this QR code.

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.

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.

Chain Lubricant

Note: Cap indication - Fuel/oil tanks are indicated by the following illustrations

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CS-303T

OPERATION

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.

Fuel tank cap

Oil tank cap

• 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.

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.

Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause

unconsciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit

so that exhaust is directed away from your face and body.

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 cutters can also create sparks if

the cutter strikes rocks, metal, or other hard objects. Contact local fire authorities for laws or

regulations regarding fire prevention requirements.

Starting Cold Engine

For more information

scan this QR code.

Make sure the bar and chain are free from any obstruction

when starting the chain saw.

1. Move chain brake lever fully forward to lock chain brake

before starting.

2. Fill the fuel tank with fuel mixture. Do not over fill.

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

4. Lay unit on a flat, clear area and keep bar and chain clear of

all obstacles.

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OPERATION

CS-303T

5. Turn switch (A) to “RUN” position (I).

6. Pull choke (B) all the way out (close choke) position.

7. Push purge bulb (C) 10 times.

8. Pull starter handle several times until first starting sound is

heard. (Secure unit on ground with your knee or foot) (5-6

pulls maximum).

9. Push choke (B) all the way in (open choke) position.

10. Pull starter handle again.

Note: If engine does not start after 5 pulls, repeat instructions.

Note: Do not increase engine speed while chain brake is locked. Severe brake damage will result.

Starting Hard to Start Engine

Clutch engages and chain may rotate when engine is started

with throttle lock button engaged. Do not start engine before

chain brake is locked.

1. Ensure that there is fuel and chain oil in the tanks.

2. Move chain brake lever fully forward to lock chain brake

before starting.

3. Lay unit on a flat, clear area and keep bar and chain clear of

all obstacles.

4. Press throttle trigger lockout down, squeeze throttle trigger, and push in throttle lock button (D).

5. While depressing the throttle lock button, release the throttle trigger and then release the lock button.

6. Move ignition switch (A) to “RUN” position.

7. Pull starter handle.

Note: Do not pull starter rope out to the maximum possible position.

Do not allow recoil handle to snap back against the casing.

• After starting the engine, immediately squeeze and then release throttle trigger to release throttle

lock button, otherwise severe brake damage may occur.

• Never use throttle lock button for cutting.

• Use the throttle lock button only in starting.

Note: Do not increase engine speed while chain brake is locked. Severe brake damage will result.

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CS-303T

OPERATION

Starting Warm Engine

Make sure the bar and chain are free from any obstruction

when starting the chain saw.

1. Ensure that there is fuel and chain oil in the tanks. (If fuel

tank was emptied during previous operation, refill tank and

push purge bulb 10 times.)

2. Move chain brake lever fully forward to lock chain brake

before starting.

3. Lay unit on a flat, clear area and keep bar and chain clear of

all obstacles.

4. Turn switch (A) to “RUN” position (I).

5. Pull starter handle.

6. Choke may be used if necessary, but be sure to push it back on first starting sound.

Note: If engine does not start after 5 pulls, use cold start procedure.

Note: Do not increase engine speed while chain brake is locked. Severe brake damage will result.

Running

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.

1. After engine starts, allow it to return to idle and warm up

before using.

2. Move chain brake lever fully rearward to unlock chain brake.

3. Squeeze throttle control lockout then gradually squeeze throttle trigger to increase engine speed.

4. The chain starts moving when the engine reaches clutch engagement speed (see technical data page).

5. Confirm proper acceleration and lubrication of chain and bar.

6. Do not run the engine at high speed unnecessarily.

7. Be sure that saw chain stops moving when throttle trigger is released.

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OPERATION

Stopping

CS-303T

1. Release throttle trigger and turn switch (A) to STOP (O)

position.

2. Move chain brake lever fully forward to lock chain brake

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.

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.

Cutting Instructions

For more information on

scan this QR code.

General

• This chain saw is designed for cutting wood or wood

products. Do not cut solid metal, sheet metal, plastic or

any non-wood materials.

• 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.

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CS-303T

OPERATION

• 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!

Kickback

In all circumstances the operation of the chain saw is a

one-man job. It is difficult at times to take care for your own

safety, so don’t assume the responsibility for a helper as well.

After you have learned the basic techniques of using the saw,

your best aid will be your own good common sense.

The accepted way to hold the saw is to stand to the left of the

saw with your left hand on the front handlebar and your right

hand on the rear handle so you can operate the throttle trigger

with your right index finger. Before attempting to fell a tree, cut

some small logs or limbs. Become thoroughly familiar with the

controls and the responses of the saw.

Start the engine, see that it is running properly. Squeeze the

trigger to open the throttle wide open and start the cut. If the

chain is properly sharpened, the cutting should be relatively

effortless. It is not necessary to press down hard to make the

saw cut. Pushing the saw too hard will slow the engine and

cutting will actually be more difficult.

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.

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OPERATION

CS-303T

Felling the Tree

For more information on

scan this QR code.

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!

3 m (10 feet)

Direction of fall

Retreat

45°

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.

Not this way

Retreat

Begin the cut on the side to which the tree is to fall. Cut a notch

about 1/3 of the way into the tree. The position of this notch is

important since the tree will try to fall “into” the notch. The

felling cut is made on the side opposite the notch and at a level

about 5 cm (2 in.) above the bottom of the notch. Do not try to

cut through to the notch with the felling cut. The remaining

wood between the notch cut and felling cut about 5 cm (2 in.)

will act as a hinge when the tree falls, guiding it in the desired

direction. When the tree starts to fall, kill the engine, place the

saw on the ground and make your retreat quickly.

Direction of fall

Hinge

5 cm (2 in.)

First cut

Felling cut

Notch

Second cut

5 cm (2 in.)

One-third tree diameter

To fell big trees with a diameter exceeding twice the bar length,

start the notching cuts from one side and draw the saw through

to the other side of the notch. Start the back cut on one side of

the tree, pivoting the saw through to form the desired hinge on

that side. Then remove the saw for the second cut. Insert the

saw in the first cut, very carefully so as not to cause kickback.

The final cut is made by drawing the saw forward in the cut to

reach the hinge.

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.

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CS-303T

OPERATION

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.

Uphill position

• 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.

Finish cut

First cut

Support

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.

When the bar nose hits another tree, etc.

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OPERATION

CS-303T

Chain And Guide Bar Combination

The following combinations are recommended for model CS-303T.

Low Kickback Guide Bar

Low Kickback Saw Chain

Kick Guard

Echo P/N

Length

Bar P/N

Chain P/N

Links

Type

Pitch

Gauge

0.050

(OEM P/N)

91PX45CQ

91VG45CQ

12”

14”

12A0CD3745

14A0CD3752

2894901

28949

91PX

91VG

3/8”

91PX52CQ

91VG52CQ

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 saw chain

designated as, “LOW-KICKBACK,” that meets ANSI B175.1 or CSA Z62.1, .3 Standard when tested

on the representative sample of chain saws below 3.8 C.I.D., and Echo guide bar specified.

Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above.

If your tip guard is damaged or lost, contact your Echo dealer for a replacement. For the name of the Echo

dealer nearest you, Call: 1-800-432-ECHO (3246) or on the web at www.echo-usa.com.

Refer to your Chain Saw Safety Manual for tip guard application information.

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)

Do not use replacement saw chain unless it has been designated as meeting ANSI B175.1 or CSA

Z62.1, .3 kickback performance requirements, when tested on the representative sample of chain

saws below 3.8 c.i.d. specified in ANSI B175.1 or CSA 62.1, .3.

Note: LOW KICKBACK SAW CHAIN meets the kickback performance requirements of ANSI B175.1 or CSA

62.1, .3 (safety requirements for gasoline-powered chain saws).

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CS-303T

MAINTENANCE

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.

Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges and

hot surfaces.

Your ECHO unit is designed to provide many hours of trouble free service. Regular scheduled maintenance

will help your unit 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, see your ECHO Dealer for repairs.

Skill Levels

Level 1 = Easy to do. Common tools may be required.

Level 2 = Moderate difficulty. Some specialized tools may be required.

ECHO offers REPOWER^TMMaintenance Kits and Parts to make your maintenance job easier.

Maintenance Intervals

REQ’D DAILYOR

YEARLY

600

HOURS

MAINTENANCE

PROCEDURE

EVERY

REFUEL

MONTHS

OR 90

HOURS

COMPONENT/SYSTEM

SKILL

BEFORE

USE

LEVEL

Air Filter

Inspect/Clean

I / C *

R *

Automatic Oiler

Oil Filter

Inspect/Adjust

Inspect/Replace

Replace

I / C *

Fuel System

I (1) *

Fuel Filter

I *

I / R *

R *

Fuel Cap Gasket

Guide Bar & Sprocket Nose

Saw Chain

Inspect/Clean/Lubricate

I / C *

I *

Inspect/Sharpen/Replace/

Tensioning

Sprocket

Inspect/Replace

I *

Spark Plug

Inspect/Clean

I / C / R *

Cooling System

Muffler Spark Arrestor

Cylinder Exhaust Port

Recoil Starter Rope

Screws/Nuts/Bolts

Inspect/Clean

I / C

Inspect/Clean/Replace

Inspect/Clean/Decarbon

Inspect/Clean

I / C / R *

I / C

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.

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MAINTENANCE

CS-303T

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.

Engine Break-In

New engines must be operated a minimum duration of two

tanks of fuel break-in before carburetor 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.

High Altitude Operation

This engine has been factory adjusted to maintain satisfactory starting, emission, and durability

performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and

emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized ECHO

service dealer.

If the engine is adjusted for operation above 1,100 feet ASL, the carburetor must be re-adjusted when

operating the engine below 1,100 feet 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 “T” CW until the saw chain begins to move, then turn

screw out CCW until the saw chain stops moving. Turn screw out, CCW, an additional 1/4 turn.

When carburetor adjustment is completed, the saw chain should not move at idle, otherwise

serious personal injury may result.

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 value listed on technical data page.

When starting, idling adjustment speed should be adjusted to prevent the saw chain from moving.

When you experience trouble with the carburetor, contact your dealer.

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CS-303T

Air Filter

MAINTENANCE

1. Check periodically.

2. Close choke (Cold start position

). This prevents

dirt from entering the carburetor throat when the air

filter is removed. Brush accumulated dirt from air

cleaner area.

3. Remove air cleaner cover. Brush dirt from inside

cover.

4. Remove air filter and lightly brush debris from filter.

Replace filter if it is damaged, fuel soaked, very dirty,

or the rubber sealing edges are deformed.

5. Install air filter cover.

Spark Plug

• Check periodically.

• The standard spark gap is 0.65 mm (0.026 in.).

• Fastening torque:13 to 17 N•m (112 to 150 in•lbf).

0.65 mm (0.026 in.)

1. Remove air cleaner cover and remove spark plug.

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

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.

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.

1. Using a wire bent into the shape of a hook, pull

strainer out through gas port, and inspect strainer.

2. If the strainer is dirty, clean with suitable cleaning fluid.

3. When the inside of the fuel tank is dirty, rinsing the tank out with gasoline can clean it.

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MAINTENANCE

CS-303T

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 supply hose between the

carburetor and fuel tank. When servicing model year 2012 and later equipment, 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.

Automatic Oiler

• The discharge volume of the automatic oiler is adjusted

to approximately 4 mL/min at 7000 r/min, prior to

shipment from factory.

• Always check oil discharge when in use.

• Turn adjusting screw (D) counter-clockwise to increase

oil volume, clockwise to decrease oil volume.

• Do not turn the adjusting screw beyond the maximum or

minimum limit of volume adjustment.

Oil Filter

• Check periodically.

• Do not allow dust to enter into oil tank.

• Clogged oil strainer will affect the normal lubricating

system.

1. Using a wire bent into the shape of a hook, pull

strainer out through oil port and inspect strainer.

2. If the strainer is dirty, clean with suitable cleaning fluid.

3. If the inside of the oil tank is dirty, rinse with suitable cleaning fluid.

4. Install strainer into lower front of oil tank to ensure proper chain lubrication.

Guide Bar

1. Clean before using.

2. Clean the groove (A) of the guide bar with a small

screwdriver.

3. Clean oil holes (B) with a wire.

4. Invert guide bar periodically.

5. Clean the bar mount area before installing of the bar.

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CS-303T

Sprocket

MAINTENANCE

Worn: 0.5 mm (0.020 in.)

• A damaged sprocket will cause premature damage 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.

Some tree sap and resins are corrosive. Thoroughly wash the guide bar and sprocket areas after each use,

then coat metal parts with light oil.

Cooling System Cleaning

• Check periodically.

• Clogged fins will result in poor engine cooling.

1. Remove muffler and starter.

2. Use compressed air or wooden tool to remove dirt and dust

from between fins to let cooling air pass easily.

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 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.

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MAINTENANCE

CS-303T

Spark Arrestor Screen

Carbon deposits in muffler will cause a drop in engine output

and overheating. Spark arrestor screen must be checked

periodically.

1. Remove muffler cover.

2. Remove spark arrestor screen cover, gaskets, and screen

from muffler body.

3. Clean carbon deposits from muffler components.

Note: When cleaning carbon deposit, be careful not to damage the catalytic element inside muffler.

4. Replace screen if it is cracked, plugged, or has holes burned through.

5. Assemble components in reverse order.

Exhaust Port Cleaning

Level 2.

Parts Required: As needed: Muffler gasket

1. Remove spark plug lead.

2. Remove muffler cover.

3. Place piston at top dead center.

4. Remove muffler. Check parts for wear or damage, and replace

if necessary.

5. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port.

Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when

cleaning the exhaust port. Do not allow carbon particles to enter the cylinder.

6. Install muffler. Tighten bolts to 9-11 N•m (80-95 in•lbf).

7. Connect spark plug lead.

8. Start engine, and allow unit to warm up at idle for several minutes.

9. Stop engine, and re-tighten mounting nuts to 9-11 N•m (80-95 in•lbf).

10. Install muffler cover.

11. Start engine and check for exhaust leaks between muffler and cylinder head. Stop engine if leak is

found and correct problem before operating chain saw.

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CS-303T

MAINTENANCE

Setting The Saw Chain

Preset tie strap

Left hand cutter

Top plate

Side plate

Depth gauge

Drive link

Tie strap

Guard link

Right hand cutter

For more information

scan this QR code.

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.

Setting Saw Chain

• For setting saw chain, round file (4.0 mm dia. 5/32 in.) and flat

file are used.

30°

• Push file as shown.

Keep this angle

• To keep correct position and correct angle, use a file holder.

• Hold the file horizontally.

90°

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MAINTENANCE

CS-303T

• Place the depth gauge tool firmly on guidebar so that depth

gauge protrudes. Then file top of depth gauge with the flat file

until flat with top of the depth gauge tool.

1/5

• One fifth of the file diameter remains above cutter edge.

• Be sure to round off the front edge of the depth gauge.

Depth gauge tool

• 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.

80°

• When chain has been filed on the bar, supply sufficient oil to it,

move the chain slowly to wash away the filings before using

again.

• If the chain saw is operated with filings clogged in the groove,

the saw chain and the guide bar will be damaged prematurely.

30°

Top plate filing angle

Side plate angle

• If the saw chain becomes soiled with resin, for instance, clean

it with kerosene and soak in it oil.

0.64 mm (0.025 in.)

To sharpen other chains, follow chain manufacturer’s

instructions.

Parallel

Depth gauge

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CS-303T

TROUBLESHOOTING

ENGINE PROBLEM TROUBLESHOOTING CHART

Problem

Check

Status

Cause

Remedy

Fuel strainer clogged

Fuel line clogged

Carburetor

Clean or replace

See your Echo dealer

Fuel at carburetor No fuel at carburetor

No fuel at cylinder

Carburetor

See your Echo dealer

Open choke 

Fuel at cylinder

Clean/replace air filter

Adjust carburetor 

See your Echo dealer

Muffler wet with fuel

Fuel Mixture too rich

Enginecranks-

starts hard/ 

doesn’t start

Stop switch off 

Electrical problem

Interlock switch

Turn switch to ON 

See your Echo dealer 

See your Echo dealer

Spark at end of

No spark

plug wire

Spark gap incorrect

Covered with carbon 

Fouled with fuel

Plug defective

Adjust to .65mm (0.026 in.)

Clean or replace 

Replace plug

Spark at plug

No spark

Air filter

Air filter dirty

Normal wear

Clean or replace

Contaminants/residues

in fuel

Fuel filter

Fuel filter dirty

Replace

Contaminants/residues

in fuel

Engine runs, 

but dies or 

does not

accelerate

properly

Fuel vent

Fuel vent plugged

Clean or replace

Spark Plug

Carburetor

Plug dirty/worn

Normal wear

Vibration

Clean and adjust or replace

Adjust

Improper adjustment

Cooling system

dirty/plugged

Extended operation in

dirty/dusty locations

Cooling System

Clean

Spark Arrestor

Screen

Spark arrestor screen

plugged

Normal wear

Replace

Engine does

not crank

N/A

Internal engine problem See your Echo dealer

Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition

spark by grounding spark plug near cylinder plug hole, otherwise serious personal injury may

result.

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STORAGE

CS-303T

STORAGE

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 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 store in an enclosure where fuel fumes may accumulate or reach an open flame or spark.

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

dealer, or go to www.echo-usa.com.

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CS-303T

TECHNICAL DATA

Model

CS-303T

Length

260 mm (10.2 in.)

Width

235 mm (9.3 in.)

Height

220 mm (8.7 in.)

Dry weight

Engine

3.5 kg (7.7 lb.) Without chain and guide bar

Air-cooled two-stroke single cylinder

Displacement

Bore

30.1 cm (1.84 cu. in.)

37.0 mm (1.46 in.)

28.0 mm (1.10 in.)

7.58 : 1

Stroke

Compressions ratio

Carburetor

Spark plug

Fuel tank capacity

Diaphragm type

NGK BPM8Y

250mL (8.5 US. fl. oz.)

50 : 1 ratio with ECHO Power Blend X™, ISO-L-EGD (ISO/CD 13738) and JASO

M345-FD two-stroke, air-cooled engine oil.

Fuel

Use 89 octane unleaded. Do not use fuel containing methyl alcohol, more than 10 %

ethyl alcohol or 15 % MTBE. Do not use alternative fuels such as E-15 or E-85.

Gasoline

Oiling system

Chain oil capacity

Starter system

Clutch

Adjustable automatic oiler

150 mL (5.1 US. fl. oz.)

Automatic rewind starter

Centrifugal type

Sprocket type

Chain brake

Spur type, 6-tooth, 3/8 in. pitch

Manual and non-manual band brake type

3,000 RPM

Idle speed

Clutch engagement speed

4,400 RPM

Wide open throttle speed

(W.O.T.)

11,500 RPM

Chain tensioner

Guide bar

Side access system

12, 14 in

Saw chain

91PX/91VG

Top handle, Front hand guard, Anti-vibration device, Throttle control lockout, Chain

catcher, Spark arrestor muffler

Standard features

Kickback safety features

Double Guard Low Kick Guide Bar, Low Kick Guard Link Saw Chain, Front Hand

Guard/Chain Brake Lever, Kick Guard

* Technical data subject to change without notice.

X7503207802

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WARRANTY STATEMENTS

CS-303T

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 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.COMꢀRUꢀE\ꢀ¿OO-

LQJꢀRXWꢀWKHꢀZDUUDQW\ꢀUHJLVWUDWLRQꢀFDUGꢀVXSSOLHGꢀZLWKꢀ\RXUꢀXQLWꢁꢀ5HJLVWHULQJꢀ\RXUꢀSURGXFWꢀFRQ¿UPVꢀ\RXUꢀZDUUDQW\ꢀFRYHUDJHꢀDQGꢀSURYLGHVꢀDꢀGLUHFWꢀ

OLQNꢀLIꢀZHꢀ¿QGꢀLWꢀQHFHVVDU\ꢀWRꢀFRQWDFWꢀ\RXꢁ

The owner shall demonstrate reasonable care and use, and follow preventative maintenance, storage, fuel and oil usage as prescribed in the

RSHUDWRU¶VꢀPDQXDOꢁꢀ6KRXOGꢀDꢀSURGXFWꢀGLI¿FXOW\ꢀRFFXUꢂꢀ\RXꢀPXVWꢂꢀDWꢀ\RXUꢀH[SHQVHꢂꢀGHOLYHUꢀRUꢀVKLSꢀ\RXUꢀ(&+2ꢀXQLWꢀWRꢀDQꢀDXWKRUL]HGꢀ(&+2ꢀVHUYLFLQJꢀ

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 ¿YH ꢀꢁꢂꢃ\HDUV from

date of purchase.

EXCEPTIONS:

‡ꢀ )RUꢀWZRꢃVWURNHꢀHQJLQHꢀSRZHUHGꢀSURGXFWVꢂꢀWKHꢀHOHFWURQLFꢀLJQLWLRQꢀPRGXOHꢂꢀÀH[LEOHꢀGULYHꢀFDEOHVꢂꢀ650ꢀVROLGꢀGULYHꢀVKDIWVꢂꢀDQGꢀ7&ꢀWLQHVꢀ

are warranted for the OLIHꢄ of the product on parts only.

‡ꢀ &XWWLQJꢀDWWDFKPHQWVꢀVXFKꢀDVꢂꢀEXWꢀQRWꢀOLPLWHGꢀWRꢂꢀEDUVꢂꢀFKDLQVꢂꢀVSURFNHWVꢂꢀEODGHVꢂꢀDQGꢀQ\ORQꢀWULPPHUꢀKHDGVꢀIRUꢀUHVLGHQWLDOꢀRUꢀQRQꢃLQFRPHꢀ

producing use will be covered for failures due to defects in material or workmanship for a period of ꢅꢆꢃGD\V from original product

purchase date. Any misuse from contact with concrete, rocks, or other structures is not covered by this warranty.

‡ꢀꢀ (&+2¶Vꢀ5DSLGꢀ/RDGHUꢀ6WULQJꢀ+HDGꢀFDUULHVꢀDꢀOLIHWLPHꢀZDUUDQW\ꢀRQꢀWKHꢀOLQHꢀORFNLQJꢀV\VWHPꢂꢀSDUWVꢀRQO\ꢄꢀQRꢀODERUꢁꢀ5HIHUꢀWRꢀ\RXUꢀRSHUDWRU¶Vꢀ

manual for string head installation and maintenance instructions.

‡ꢀꢀ $OOꢀ6%ꢃ6HULHVꢀDQGꢀ352ꢀ$77$&+0(17ꢀ6(5,(6ꢀ6SOLWꢀ6KDIWꢀDWWDFKPHQWVꢀFDUU\ꢀWKHꢀVDPHꢀZDUUDQW\ꢀGXUDWLRQꢀDVꢀWKHꢀXQLWVꢀWKH\ꢀDUHꢀ

GHVLJQHGꢀWRꢀ¿Wꢁ

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 ꢀꢇꢂꢃ\HDU 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 ꢀꢈꢂꢃ\HDUV from the date of purchase.

EXCEPTIONS:

‡ꢀ )RUꢀWZRꢃVWURNHꢀHQJLQHꢀSRZHUHGꢀSURGXFWVꢂꢀWKHꢀHOHFWURQLFꢀLJQLWLRQꢀPRGXOHꢂꢀÀH[LEOHꢀGULYHꢀFDEOHVꢂꢀ650ꢀVROLGꢀGULYHꢀVKDIWVꢀDQGꢀ7&ꢀWLQHVꢂꢀ

are warranted for the OLIHꢄ of the product on parts only.

‡ꢀ &XWWLQJꢀDWWDFKPHQWVꢀVXFKꢀDVꢂꢀEXWꢀQRWꢀOLPLWHGꢀWRꢂꢀEDUVꢂꢀFKDLQVꢂꢀVSURFNHWVꢂꢀEODGHVꢂꢀDQGꢀQ\ORQꢀWULPPHUꢀKHDGVꢀIRUꢀFRPPHUFLDOꢂꢀLQVWLWXWLRQDOꢂꢀ

agricultural, industrial, rental, or income producing will be covered for failures due to defects in material or workmanship for a period

of ꢉꢆꢃGD\V from original product purchase date. Any misuse from contact with concrete, rocks, or other structures is not covered by

this warranty.

‡ꢀꢀ (&+2¶Vꢀ5DSLGꢀ/RDGHUꢀ6WULQJꢀ+HDGꢀFDUULHVꢀDꢀOLIHWLPHꢀZDUUDQW\ꢀRQꢀWKHꢀOLQHꢀORFNLQJꢀV\VWHPꢂꢀSDUWVꢀRQO\ꢄꢀQRꢀODERUꢁꢀ5HIHUꢀWRꢀ\RXUꢀRSHUDWRU¶Vꢀ

manual for string head installation and maintenance instructions.

‡ꢀꢀ $OOꢀ6%ꢃ6HULHVꢀDQGꢀ352ꢀ$77$&+0(17ꢀ6(5,(6ꢀ6SOLWꢀ6KDIWꢀDWWDFKPHQWVꢀFDUU\ꢀWKHꢀVDPHꢀZDUUDQW\ꢀGXUDWLRQꢀDVꢀWKHꢀXQLWVꢀWKH\ꢀDUHꢀ

GHVLJQHGꢀWRꢀ¿Wꢁ

RENTAL APPLICATION - 90 DAYS WARRANTY

‡ꢀꢀ8QLWVꢀIRUꢀUHQWDOꢀXVHꢀZLOOꢀEHꢀFRYHUHGꢀDJDLQVWꢀGHIHFWVꢀLQꢀPDWHULDOꢀDQGꢀZRUNPDQVKLSꢀIRUꢀDꢀSHULRGꢀRIꢀꢅꢆꢀGD\VꢀIURPꢀWKHꢀGDWHꢀRIꢀSXUFKDVHꢁꢀ

ꢄꢀꢀ (&+2¶VꢀOLDELOLW\ꢀXQGHUꢀWKHꢀ³/LIHWLPH´ꢀFRYHUDJHꢀLVꢀOLPLWHGꢀWRꢀIXUQLVKLQJꢀSDUWVꢀVSHFL¿HGꢀXQGHUꢀWKHꢀ352'8&7ꢀ:$55$17<ꢀ3(5,2' section of

this warranty statement for ³/LIH´ꢀIUHHꢀRIꢀFKDUJHꢀIRUꢀDꢀSHULRGꢀRIꢀWHQꢀꢇꢈꢆꢉꢀ\HDUVꢀDIWHUꢀWKHꢀGDWHꢀRIꢀWKHꢀFRPSOHWHꢀXQLW¶Vꢀ¿QDOꢀSURGXFWLRQꢁꢀ

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CS-303T

WARRANTY STATEMENTS

PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES

‡ꢀꢀꢅꢆꢃGD\ꢀUHVLGHQWLDOꢂꢀRUꢀQRQꢃLQFRPHꢀSURGXFLQJꢀZDUUDQW\

‡ꢀꢀꢊꢆꢃGD\ꢀFRPPHUFLDOꢂꢀLQVWLWXWLRQDOꢂꢀDJULFXOWXUDOꢂꢀLQGXVWULDOꢂꢀLQFRPHꢀSURGXFLQJꢂꢀRUꢀUHQWDOꢀDSSOLFDWLRQꢀZDUUDQW\ꢀꢀ

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. (&+2ꢃ3RZHUꢃ%OHQGŒꢃ7ZRꢊ6WURNHꢃ2LO LVꢀDꢀSUHPLXPꢀWZRꢃVWURNHꢀRLOꢀVSHFL¿FDOO\ꢀIRUPXODWHGꢀWRꢀPHHWꢀ,62ꢃ

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:

‡ꢀ

/DFNꢀRIꢀOXEULFDWLRQꢀRUꢀHQJLQHꢀIDLOXUHꢂꢀGXHꢀWRꢀWKHꢀXVHꢀRIꢀWZRꢃVWURNHꢀRLOVꢀthat 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. (&+2ꢀ3RZHUꢀ%OHQGŒꢀ7ZRꢃ6WURNHꢀ2LO 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.

'DPDJHꢀFDXVHGꢀE\ꢀXVHꢀRIꢀJDVRKROꢂꢀFRQWDLQLQJꢀPHWKDQROꢀꢇZRRGꢀDOFRKROꢉꢂꢀRUꢀJDVROLQHꢀFRQWDLQLQJꢀOHVVꢀWKDQꢀꢋꢅꢀRFWDQH. Only use gasoline which

contains ꢋꢅꢀRFWDQHꢀRUꢀKLJKHU. Gasohol which contains a PD[LPXPꢀꢈꢆꢌꢀHWKDQROꢀꢇJUDLQꢀDOFRKROꢉꢀRUꢀꢈꢍꢌꢀ07%(ꢀꢇPHWK\OꢎWHUWLDU\ꢎEXW\OꢎHWKHUꢉꢀ

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.

(QJLQHꢀGDPDJHꢀFDXVHGꢀE\ꢀXVHꢀRIꢀHWKHUꢀRUꢀDQ\ꢀVWDUWLQJꢀÀXLGVꢁꢀꢀ

'DPDJHꢀFDXVHGꢀE\ꢀWDPSHULQJꢀZLWKꢀHQJLQHꢀVSHHGꢀJRYHUQRUꢀRUꢀHPLVVLRQꢀFRPSRQHQWVꢂꢀRUꢀUXQQLQJꢀHQJLQHVꢀDERYHꢀVSHFL¿HGꢀDQGꢀUHFRPPHQGHGꢀ

engine speeds as listed in your operator’s manual.

‡ꢀ

2SHUDWLRQꢀRIꢀWKHꢀXQLWꢀZLWKꢀLPSURSHUO\ꢀPDLQWDLQHGꢎUHPRYHGꢀFXWWLQJꢀVKLHOGꢀRUꢀUHPRYHGꢎGDPDJHGꢀDLUꢀ¿OWHUꢁꢀꢀ

'DPDJHꢀFDXVHGꢀE\ꢀGLUWꢂꢀSUHVVXUHꢀRUꢀVWHDPꢀFOHDQLQJꢀWKHꢀXQLWꢂꢀVDOWꢀZDWHUꢂꢀFRUURVLRQꢂꢀUXVWꢂꢀYDUQLVKꢂꢀDEUDVLYHVꢂꢀDQGꢀPRLVWXUHꢁ

'HIHFWVꢂꢀPDOIXQFWLRQVꢀRUꢀIDLOXUHVꢀUHVXOWLQJꢀIURPꢀDEXVHꢂꢀPLVXVHꢂꢀQHJOHFWꢂꢀPRGL¿FDWLRQVꢂꢀDOWHUDWLRQVꢂꢀQRUPDOꢀZHDUꢂꢀLPSURSHUꢀVHUYLFLQJꢂꢀRUꢀXVHꢀ

of unauthorized attachments.

‡ꢀ

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manual. Preventative maintenance as outlined in the operators manual is the customer’s responsibility.

)DLOXUHVꢀGXHꢀWRꢀLPSURSHUꢀVHWꢃXSꢂꢀSUHꢃGHOLYHU\ꢀVHUYLFHꢀRUꢀUHSDLUꢀVHUYLFHꢀE\ꢀDQ\RQHꢀRWKHUꢀWKDQꢀDXWKRUL]HGꢀ(&+2ꢀVHUYLFLQJꢀGHDOHUꢀGXULQJꢀWKHꢀ

warranty period.

&HUWDLQꢀparts and other items are not warranted, including but not limited to: lubricants, starter cords, and engine tune-ups.

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Manuals.

2YHUKHDWLQJꢀRUꢀFDUERQꢀVFRULQJꢀIDLOXUHVꢀGXHꢀWRꢀUHVWULFWHGꢂꢀFORJJHGꢀH[KDXVWꢀSRUWꢀRUꢀFRPEXVWLRQꢀFKDPEHUꢂꢀLQFOXGLQJꢀGDPDJHꢀWRꢀVSDUNꢀDUUHVWHUꢀ

screen.

‡ꢀ

$GMXVWPHQWVꢀDIWHUꢀWKHꢀ¿UVWꢀꢇꢊꢆꢉꢀWKLUW\ꢀGD\VꢀDQGꢀEH\RQGꢂꢀVXFKꢀDVꢀFDUEXUHWRUꢀDGMXVWPHQWꢀDQGꢀWKURWWOHꢀFDEOHꢀDGMXVWPHQWꢁꢀ

'DPDJHꢀWRꢀJHDUVꢀRUꢀJHDUꢀFDVHVꢀFDXVHGꢀE\ꢀFRQWDPLQDWHGꢀJUHDVHꢀRUꢀRLOꢂꢀXVHꢀRIꢀLQFRUUHFWꢀW\SHꢀRUꢀYLVFRVLW\ꢀRIꢀOXEULFDQWVꢂꢀDQGꢎRUꢀIDLOXUHꢀWRꢀFRPSO\ꢀ

with recommended grease or oil change intervals.

‡ꢀ

'DPDJHꢀFDXVHGꢀE\ꢀORDGLQJꢀ6+5('ꢀꢏ1ꢏꢀ9$&^®beyond recommended capacity.

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$GGLWLRQDOꢀGDPDJHꢀWRꢀSDUWVꢀRUꢀFRPSRQHQWVꢀGXHꢀWRꢀFRQWLQXHGꢀXVHꢀDIWHUꢀRSHUDWLRQDOꢀSUREOHPꢀRUꢀIDLOXUHꢀRFFXUVꢁꢀ6KRXOGꢀRSHUDWLRQDOꢀSUREOHPꢀRUꢀ

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.COMꢁꢀ<RXUꢀUHFHLSWꢀRIꢀSXUFKDVHꢀLQFOXGLQJꢀGDWHꢂꢀPRGHOꢀDQGꢀVHULDOꢀQXPEHUꢀPXVWꢀEHꢀPDLQWDLQHGꢀDQGꢀSUHVHQWHGꢀWRꢀDQꢀDXWKRUL]HGꢀ

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

FRQVHTXHQWLDOꢀGDPDJHVꢂꢀVRꢀ\RXꢀPD\ꢀDOVRꢀKDYHꢀRWKHUꢀVSHFL¿FꢀOHJDOꢀULJKWVꢀZKLFKꢀYDU\ꢀIURPꢀVWDWHꢀWRꢀVWDWHꢁꢀ7KLVꢀOLPLWHGꢀZDUUDQW\ꢀLVꢀJLYHQꢀE\ꢀ(&+2ꢀ

Incorporated, 400 Oakwood Rd., Lake Zurich, IL 60047.

DISCLAIMER OF IMPLIED WARRANTIES

7KLVꢀOLPLWHGꢀZDUUDQW\ꢀLVꢀLQꢀOLHXꢀRIꢀDOOꢀRWKHUꢀH[SUHVVHGꢀRUꢀLPSOLHGꢀZDUUDQWLHVꢂꢀLQFOXGLQJꢀDQ\ꢀZDUUDQW\ꢀRIꢀ),71(66ꢀ)25ꢀ$ꢀ3$57,&8/$5ꢀ385326(ꢀ

OR USE and any implied warranty of MERCHANTABILITYꢀRWKHUZLVHꢀDSSOLFDEOHꢀWRꢀWKLVꢀSURGXFWꢁꢀ(&+2ꢀDQGꢀLWVꢀDI¿OLDWHGꢀFRPSDQLHVꢀVKDOOꢀQRWꢀEHꢀ

OLDEOHꢀIRUꢀDQ\ꢀVSHFLDOꢀLQFLGHQWDOꢀRUꢀFRQVHTXHQWLDOꢀGDPDJHꢂꢀLQFOXGLQJꢀORVWꢀSUR¿WVꢁꢀ7KHUHꢀDUHꢀQRꢀZDUUDQWLHVꢀH[WHQGHGꢀRWKHUꢀWKDQꢀDVꢀSURYLGHGꢀKHUHLQꢁꢀ

7KLVꢀOLPLWHGꢀZDUUDQW\ꢀPD\ꢀEHꢀPRGL¿HGꢀRQO\ꢀE\ꢀ(&+2ꢁ

99922201032

11/18/2011

X7503207802

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NOTES

CS-303T

NOTES

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CS-303T

NOTES

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NOTES

CS-303T

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CS-303T

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 Number 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.

Echo Consumer Product Support

If you require assistance or have questions concerning the application, 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.

Warranty Registration

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 between you and ECHO if we find it

necessary to contact you.

Additional or Replacement Manuals

For more information

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.

scan this QR code.

Safety Videos are available from your Echo dealer. A $5.00 shipping charge will be required for each video.

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C26111001001/C26111999999

C26012001001/C26012999999

ECHO, INCORPORATED

400 Oakwood Road

Lake Zurich, IL 60047

www.echo-usa.com

Download from Www.Somanuals.com. All Manuals Search And Download.

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