Echo CS-670 User Manual

OPERATOR’S MANUAL

CHAIN SAW

CS-670

WARNING

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

ECHO POWER EQUIPMENT (CANADA)

501 Newbold Street, London, Ontario Canada N6E 1K4

Printed in Japan 0710Am 1203 ES

X750-002 76 5 X750 316-350 5

RULES FOR SAFE OPERATION

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

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

Note: Personal protective clothing

should meet the requirements of applicable Standards.

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

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

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

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

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

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

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

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

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

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

TO AVOID KICKBACK:

(a) Contact of the guide bar tip with any

object should be avoided.

(b) Tip contact may cause the guide bar

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

operating the chain saw.

(d) Use a firm grip, thumbs and fingers

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

for sharpening and maintenance of

the saw chain.

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

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

CAUTION

A. Allow your chain saw to cool before

refueling, and do not smoke while refueling.

B. Do not allow other persons or animals

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

C. Use extreme caution when cutting small

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

D. When cutting a limb that is under

tension is alert for spring-back.

CS-670

CONTENTS

RULES FOR SAFE OPERATION ............................................................................. 2

SYMBOLS AND SIGNS ........................................................................................... 3

PACKING LIST ......................................................................................................... 5

NOMENCLATURE OF PARTS ................................................................................. 6

OPERATOR SAFETY............................................................................................... 8

CORRECT USE OF CHAIN BRAKE ........................................................................ 9

PREPARATION FOR USE ....................................................................................... 10

FUEL AND LUBRICANT .......................................................................................... 12

OPERATION ............................................................................................................ 14

CUTTING INSTRUCTION ........................................................................................ 17

CHAIN AND GUIDE BAR COMBINATION .............................................................. 22

MAINTENANCE AND CARE.................................................................................... 23

SETTING THE SAW CHAIN..................................................................................... 27

TROUBLESHOOTING ............................................................................................. 29

STORAGE AFTER USE........................................................................................... 30

TECHNICAL DATA ................................................................................................... 30

This spark ignition system complies with Canadian ICES-002.

This chain saw is designed for cutting wood or wood products. Do not cut solid metal, sheet metal, plastic or any non-wood materials.

Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to change without notice. Illustrations may include optional equipment and accessories, and may not include all standard equipment.

SYMBOLS AND SIGNS

DANGER

The safety alert symbol accompanied by the word “DANGER” calls attention to an act or condition which WILL lead to serious personal injury or death if not avoided.

WARNING

The safety alert symbol accompanied by the word “WARNING” calls attention to an act or condition which CAN lead to serious personal injury or death if not avoided.

CAUTION

The safety alert symbol accompanied by the word “CAUTION” calls attention to an act or condition which may lead to minor or moderate personal injury if not avoided.

NOTE

This enclosed message provides tips for use, care and maintenance of the unit.

IMPORTANT

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

CIRCLE AND SLASH SYMBOL

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

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SYMBOL FORM

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

STOP

DECALS

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

Carefully read the operator’s manual

Wear eyes, ears and head protection

Emergency stop

Choke control “Cold Start” position (choke closed)

Oil and gasoline mixture

Part Number X503-002460

CS-670

Chain oil fill

Chain oil pump

Chain oiler adjustmentChain brake operation

Carburetor adjustment

- Low speed mixture

Carburetor adjustment

- High speed mixture

Carburetor adjustment

- Idle speed

Part Number 890176-39431

CAUTION/ATTENTION

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

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

Part Number 890324-39630

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

ATTENTION

Part Number X505-000450

TO AVOID KICKBACK

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

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

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

Part Number X505-000460

POUR ÉVITER LES REBONDISSEMENTS

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

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

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

Part Number X524-000711

REPLACEMENT BAR AND CHAIN

PEMPLACEMENT DU GUIDE ET DE LA CHAÎNE

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

16” 16D0PS3860 OREGON 72V 60 25.5 27” 27D0PS3893 OREGON 72V 93 30.1 CKA means Computed Kickback Angle. CKA Signifie angle de rebondissement calculé.

Note; There may be other replacement

components for achieving kickback protection. For details, please refer to the chain and bar combination

sheet shown in the operator’s manual. REMARQUE; Il y peut y avoir d’autres composantes de remplacement qui protègent en cas de rebondissement. Pour plus de détails, se référer à la feuille sur les combinaisons de guide et de chaîne du manuel de l’utilisateur.

Part Number X505-002050

WARNING

Chain brake must be unlocked before removing or installing clutch cover. Improper cover installation can result in serious injury and cause severe damage to saw.

La frein du chaînes doit être désengagé avant d’enlever ou installer la couverture d’embrayage. La couverture installée inexactement peut avoir conséquence d’blessures serieuseset endommager la scie.

Locate this safety decal on your unit. The complete unit illustration found in the “NOMENCLATURE OF PARTS” section will help you locate them. Make sure the decal is legible and that you understand and follow the instructions on it. If a decal cannot be read, a new one can be ordered from your ECHO dealer.

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PACKING LIST

The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, guide bar and saw chain installation and other assembly may be necessary.

ECHO chain saw

Operator’s manual Safety manual

After opening the carton, check for damage. Immediately notify your retailer or ECHO dealer of damaged or missing parts. Use the packing list to check for missing parts.

13 x 19 mmT-wrench,

4 mm Hexagonal Wrench,

Small screwdriver

ECHO Power Blend X™

2-stroke oil sample

Spiked bumper,

Bolts 5

××

× 12 mm

××

Limited warranty

statement

Warranty registration

card

Guide bar

Kick Guard®

Saw chain

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NOMENCLATURE OF PARTS

X505-002050

Part Number X524-000711

REPLACEMENT BAR AND CHAIN

PEMPLACEMENT DU GUIDE ET DE LA CHAÎNE

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

16” 16D0PS3860 OREGON 72V 60 25.5 27” 27D0PS3893 OREGON 72V 93 30.1 CKA means Computed Kickback Angle. CKA Signifie angle de rebondissement calculé.

Note; There may be other replacement

components for achieving kickback protection. For details, please refer to the chain and bar combination

X505-000450

X505-000460

Part Number X505-000450

TO AVOID KICKBACK

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

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

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

Part Number X503-002460

18 20

Part Number X505-000460

POUR ÉVITER LES REBONDISSEMENTS

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

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

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

X524-000711 890324-39630

890176-39431

X503-002460

Part Number 890324-39630

ATTENTION

Part Number 890176-39431

CAUTION/ATTENTION

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

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

CS-670

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

Part Number X505-002050

Chain brake must be unlocked before removing or installing clutch cover. Improper cover installation can result in serious injury and cause severe damage to saw.

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

ordered from your ECHO dealer.

WARNING

NOMENCLATURE OF PARTS

1. Operator’s manual - Included with unit.

Read before operation and keep for future reference to learn proper, safe operating techniques.

2. Safety manual - Describe operating and safety

instructions for this chain saw.

3. Front hand guard - Guard between the front

handle and the saw chain for protecting the hand from injuries and aiding in control of the chain saw if the hand slips off the handle. This guard is used to lock the chain brake which is to stop the saw chain rotation.

4. Air cleaner cover - Covers air cleaner.

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

handle located towards the rear of the engine housing.

6. Choke control knob - Device for enriching the

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

7. Rear hand guard - Extension on the lower part

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

8. Clutch cover - Protective cover to the guide

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

9. Chain tension adjuster - Device to adjust

chain tension.

10. Chain catcher - A projection designed to

reduce the risk of the operator’s right hand from being hit by a chain which has broken or derailed from the guide bar during cutting.

11. Guide bar - The part that supports and guides

the saw chain.

12. Bar tip guard - Anti-kickback device attached

on the bar nose.

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

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

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

15. Cylinder cover - The cooling airflow grill.

It covers the cylinder, spark plug and silencer.

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

handle located at the front of the engine housing.

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

18. Starter handle - Pull handle slowly until starter

engages then quickly and firmly. When engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.

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

20. Manual oil pump - Device for proper

lubrication of chain.

21. Throttle trigger - Device activated by the

operator’s finger, for controlling the engine speed.

22. Throttle trigger lockout - A safety lever which

must be depressed before the throttle trigger can be activated in order to prevent the accidental operation of the throttle trigger.

23. Ignition switch - Device for connecting and

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

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OPERATOR SAFETY

VIBRATION AND COLD

• It is believed that a condition called Raynaud’s Phenomenon, which affects the fingers of certain individuals, may be brought about by exposure to vibration and cold. Exposure to vibration and cold may cause tingling and burning followed by loss of color and numbness in the fingers. The following precautions are strongly recommended because the minimum exposure which might trigger the ailment is unknown.

• Keep your body warm, especially the head and neck, feet and ankles and hands and wrists.

• Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks and also by not smoking.

• Limit the number of hours of operation. Try to fill each day with jobs where operating the chain saw, or other hand-held power equipment is not required.

• If you experience discomfort redness and swelling of the fingers, followed by whitening and loss of feeling, consult your physician before further exposing yourself to cold and vibration.

REPETITIVE STRESS INJURY

• It is believed that over-using the muscles and tendons of the finger, hands, arms and shoulders may cause soreness, swelling, numbness, weakness and extreme pain to the areas just mentioned. Certain repetitive hand activities may put you at a high risk for developing a repetitive stress injury (RSI).

• An extreme RSI condition is Carpal Tunnel Syndrome (CTS) which could occur when your wrist swells and squeezes a vital nerve that runs through the area. Some believe that prolonged exposure to vibration may contribute to CTS. CTS can cause severe pain for months or even years.

To reduce the risk of RSI/CTS, do the following:

• Avoid using your wrist in a bent, extended or twisted position.

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

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

• Do exercises to strengthen hand and arm muscles.

• See a doctor if you feet tingling, numbness or pain in your fingers, hands, wrists or arms. The sooner RSI/CTS is diagnosed, the more likely permanent nerve and muscle damage can be prevented.

EYE AND HEARING PROTECTION

• Wear eye protection goggles that meet ANSI Z 87.1 requirements. Goggles meeting the requirements have the mark “Z 87” stamped on them.

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

WEAR PROPER CLOTHING

• Snug fitting durable clothing should be worn. Pants should have long legs, DO NOT WEAR SHORTS. Do not wear loose fitting clothing, scarves, neckties, jewelry or any item that may become tangled in surrounding growth or the chain saw itself.

• Wear shoes with non-skid soles. DO NOT wear open toed shoes or operate unit barefooted.

• Wear no-slip, heavy duty work gloves to improve your grip on the chain saw handles. The gloves also help reduce the transmission of machine vibration to your hands.

HOT HUMID WEATHER

• Heavy protective clothing can increase operator fatigue which may lead to heat stroke. Schedule heavy work for early morning, or late afternoon hours when temperatures are cooler.

AVOID HOT SURFACES

• During operation, the muffler or catalytic muffler and surrounding cover become hot.

• Never suspend the saw on a lanyard with the engine running.

• Always use the saw from the right-hand side of your body - NEVER from the left side.

• Always wear proper safety clothing to protect your lower body from sharp saw chain and hot muffler.

• Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result.

CS-670

SPARK ARRESTOR MUFFLER

• The spark arrestor muffler controls the exhaust noise and prevents hot, glowing particles of carbon from leaving the muffler. Make sure the spark arrestor screen is in good repair and properly seated in the muffler.

• Certain internal combustion engines operated on forest, brush, and/or grass-covered areas in the states of Washington, Oregon, Idaho, California, Minnesota, New Jersey and Maine, are required to be equipped with a spark arrestor.

CORRECT USE OF CHAIN BRAKE

This requirement also applies to all U.S. Forest Service lands. In some of these areas, the spark arrestor system must be certified per USDA Forest Service Regulation SAE J335. Check with your local or state authorities for specific regulations in your area. Failure to follow these requirements is a violation of the law.

Rotational kickback

Reduced radius belongs on top

Rotational kickback

Chain moving downward at impact

Liner kickback

Pinch

DANGER

Kickback safety precaution for chain saw users: Kickback may occur when the nose or tip of the guide bar touches an object or when the wood closes in and pinches the saw chain in the cut.

The installation of a chain brake may be mandatory by law or as stipulated by insurance regulations in your area of operation. You should inquire through local government offices, your employer or your local dealer to ensure that your chain saw conforms to the required safety standard. ECHO chain brakes have been designed and tested to comply with international safety standards as follows.

Canada : CSA Standard Z 62.1,

Standard Z 62.3 CHAIN SAWS

USA : ANSI Standard B175.1-2000

Safety Requirement for chain saws

WARNING

CSA Z 62.1 stipulates that the brake shall stop the chain 0.12 seconds at an engine speed of 13500 r/min. It is the responsibility of the owner / operator to ensure that the brake is servuced, adjusted and tested strictly in accordance with the instructions as detailed herein in order to ensure that yhe brake performance is maintained in compliance with the standard CSA Z 62.1.

Kickback

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Bolt (A)

PREPARATION FOR USE

WARNING

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

KICK GUARD® TO BAR INSTRUCTIONS

Tools Needed: Two 11 mm (7/16 in.) Wrenches.

For saws with Kick Guard® P/N 2893201 and Symmetrical Low-Kick type (Double Guard) guide bars.

Front

hole (B)

Front hole (C)

Nut (F)

Brake lever (Front hand guard)

Dimple (D)

Kick Guard

Recess (E)

Guide bar

1. Install bolt (A) in and through front hole (C) in guide bar.

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.

4. Tighten nut (F) 1/8 additional turn.

5. Check to make certain Kick Guard® is tight on guide bar.

front

hole (B) of Kick Guard

GUIDE BAR AND SAW CHAIN INSTALLATION/REMOVAL

NOTE

Move the chain brake lever (Front hand guard) fully rearward to remove or install the clutch cover to chain saw.

Clutch cover

Guide bar studs

CS-670

Two nuts

Spiked bumper

Two bolts 5 × 12 mm

1. Remove spark plug lead. (See page 24)

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

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

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

Clutch

Hole

Brake band

Unlock chain brake

Guide bar studs

Guide bar adjuster hole

Nuts

Adjuster pin Clutch cover

5. Mount guide bar on studs and slide toward clutch to make saw chain installation easier. Install chain with cutters on top of guide bar facing foward.

6. Unlock the chain brake, and install the clutch cover over the guide bar studs. Ensure chain tension adjuster pin fits into the guide bar adjuster hole, brake band is positioned around clutch drum, and hole at rear of clutch cover fits pin on engine cover. Tighten clutch cover nuts finger tight.

7. Turn saw over and check brake band for correct position on clutch drum. If brake band is not in place around drum, remove cover, make sure brake is unlocked, and reinstall. Tighten clutch cover nuts finger tight.

WARNING

Improper clutch cover assembly can result in serious injury, and will cause severe saw damage if unit is started. Never start or operate saw if brake band is not in place on clutch drum. Always check chain brake operation after replacing cover. Do not use saw if chain brake does not function properly.

Direction to tension the chain

Adjusting screw

Proper tension Improper tension

ADJUSTING CHAIN TENSION

IMPORTANT

Always loosen clutch cover nuts before turning the chain tension adjuster, otherwise the clutch cover and tensioner will be damaged.

1. Remove spark plug lead. (See page 24)

2. Loosen two clutch cover nuts, if necessary.

3. Hold the bar nose up, and turn the adjuster screw clockwise until chain fits snugly against underside of the bar.

4. Tighten both nuts with the bar nose held up.

5. Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots.

6. When chain is properly tensioned, tighten clutch cover nuts securely - 20 to 23 N·m (200 to 230 kgf·cm).

7. Keep chain properly tensioned at all times.

CS-670

FUEL AND LUBRICANT

WARNING

Alternative fuels, such as E-20 (20 % ethanol), E-85 (85 % ethanol) or any fuels not meeting above requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement. Alternative fuels may also cause premature deterioration of fuel lines, gaskets, carburetor and other engine components.

Fuel Mix Chart 50 : 1

Gasoline Oil

LmL

480 8 160

20 400

FUEL STATEMENT

GASOLINE - Use 89 Octane [(R+M)/2] (mid grade

or higher) gasoline or gasohol known to be good quality. Gasohol may contain up to 10 % Ethyl (grain) alcohol or 15 % MTBE (methyl teriary-butyl ether). Gasohol containing methyl (wood) alcohol is NOT approved.

TWO-STROKE OIL - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and JASO M345-FC/FD Standards must be used. ECHO brand premium Power Blend X™ Universal 2Stroke Oil meets these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and JASO M345-FC/FD certified oil, such as ECHO premium Power Blend X™, will void the two-stroke engine warranty. (Emission related parts only are covered for two years, regardless of two-stroke oil used, per the statement listed in the Emission Defect Warranty Explanation.)

IMPORTANT

• ECHO premium Power Blend X™ Universal 2Stroke Oil may be mixed at 50 : 1 ratio for application in all ECHO engines sold in the past regardless of ratio specified in those manuals.

• Use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor performance, or severe engine damage and void the product warranty. Read and follow instructions in the Storage section of this manual.

CS-670

DANGER

Fuel is VERY flammable. Use extreme care

when mixing, storing or handling or serious personal injury may result.

• Use an approved fuel container.

• DO NOT smoke near fuel.

• DO NOT allow flames or sparks near fuel.

• Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize.

• NEVER refuel a unit when the engine is HOT!

• NEVER refuel a unit with the engine running.

• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.

• Securely tighten fuel cap after refueling.

• Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.

• Move at least 3 m from refueling location before starting the engine.

HANDLING FUEL

MIXING INSTRUCTIONS -

1. Fill an approved fuel container with half of the required amount of gasoline.

2. Add the proper amount of two-stroke oil to gasoline.

3. Close container and shake to mix oil with gasoline.

4. Add remaining gasoline, close fuel container, and remix.

IMPORTANT

• Spilled fuel is a leading cause of hydrocarbon emissions. Some states may require the use of automatic fuel shut-off containers to reduce fuel spillage.

• Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabilizer is added.

• Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use.

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.

CS-670

Cap indication

Fuel/oil tanks are indicated by the following illustrations.

Fuel tank cap

Oil tank cap

OPERATION

CHAIN LUBRICANT

Proper lubrication of the chain while in operation reduces the friction between the chain and the guide bar to a minimum and assures a longer service life.

• Use bar and chain oil of high quality for this purpose.

• Do not use used or reclaimed oil to avoid various oiler problems.

• Use ECHO bar and chain oil.

• When ECHO bar and chain oil is not available: Use motor oil, etc.

• Use bar and chain oil of the following grades:

SAE No. 30 .......in summer

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

resinous trees.

• When refueling, also refill chain oil.

Throttle trigger lockout

Throttle trigger

Starter handle

Choke

Chain brake

Start/Run

Ignition switch

WARNING

• After choke control knob is pulled and then knob is returned to original position, throttle remains a little open (latch condition).

• If engine is started in this latch condition, chain starts to turn. Do not start engine before chain brake is locked.

CAUTION

1. After starting the engine, squeeze throttle

trigger slightly to release throttle latch and pull front hand guard towards the operator immediately. (Chain brake unlocked position)

2. Never use throttle latch for cutting.

3. Use the chain brake only in starting or in

emergencies.

Unlock chain brake

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Chain brake

WHEN THE ENGINE IS COLD

CAUTION

Make sure the bar and chain are free from any obstruction when starting the chain saw.

• Move chain brake lever fully forward to lock chain brake before starting.

Throttle trigger lockout

Throttle trigger

Unlock chain brake

Choke

Starter handle

Start/Run

Ignition switch

Chain brake

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

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

• Move ignition switch to “RUN” position.

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

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

• Push choke control knob all the way in.

• Pull starter handle to start the engine.

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

WHEN THE ENGINE IS WARM

Throttle trigger lockout

Throttle trigger

Starter handle

Unlock chain brake

Open

Start/Run

Ignition switch

CAUTION

Make sure the bar and chain are free from any obstruction when starting the chain saw.

• Move chain brake lever fully forward to lock chain brake before starting.

• Confirm there is fuel and chain oil in the tanks.

• Move ignition switch to “RUN” position.

• Securely hold the chain saw as shown and pull starter handle.

• Choke may be used if necessary, but after first firing sound, pull throttle trigger to release choke.

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

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Unlock chain brake

Manual oiler

RUNNING

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

• Set the brake lever in the unlocked position before starting to cut.

• Pull throttle trigger gradually and increase revolution of the engine.

• The chain starts running when the engine reaches 3800 r/min approximately.

• Confirm proper acceleration and lubrication of chain and bar.

• Give several strokes to manual oiler button to confirm extra lubrication.

• Do not run the engine at high speed unnecessarily.

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

STOPPING

• Release throttle trigger and move ignition switch down to “STOP” position.

Throttle trigger

Ignition switch

Stop

NOTE

If engine does not stop, pull choke control knob out fully to stop engine.

Return the unit to your authorized ECHO dealer to check and repair stop switch before starting the engine again.

CHECKING CHAIN TENSION

• Chain tension should be checked frequently during work and corrected as necessary.

• Tension the chain as tight as possible, but so it can still be pulled easily along the bar by hand.

CAUTION

Do not operate with a loose chain.

CHAIN LUBRICATION TEST

Hold the chain just above a dry surface and open the throttle to half speed for 30 seconds.

A thin line of “thrown” oil should be seen on the dry surface.

CS-670

CUTTING INSTRUCTION

GENERAL

• Read the ECHO “CHAIN SAW SAFETY MANUAL” included with your chain saw for additional cutting and safety instructions.

• Wear suitable hearing protection such as earmuffs or earplugs to protect against objectionable or uncomfortable loud noises.

• Do not let the tip of the bar touch anything while the engine is running. At cutting speed the chain is moving at a high rate of speed. Should the tip contact a limb or log while the chain is moving, the tip will be pushed upward with considerable force. This is known as kickback. Avoid it!

In all circumstances the operation of the chain saw is a one-man job. It is difficult at times to take care for your own safety, so don’t assume the responsibility for a helper as well. After you have learned the basic techniques of using the saw, your best aid will be your own good common sense. The accepted way to hold the saw is to stand to the left of the saw with your left hand on the front handlebar and your right hand on the rear handle so you can operate the throttle trigger with your right index finger. Before attempting to fell a tree, cut some small logs or limbs. Become thoroughly familiar with the controls and the responses of the saw.

CAUTION

Kickback

Start the engine, see that it is running properly. Squeeze the trigger to open the throttle wide open and start the cut. If the chain is properly sharpened, the cutting should be relatively effortless. It is not necessary to press down hard to make the saw cut. Pushing the saw too hard will slow the engine and cutting will actually be more difficult.

Some material may adversely affect the housings of your chain saw. (Example palm Tree Acid, fertilizer etc.) To avoid housing deterioration, carefully remove all packed sawdust around clutch and guide bar area and wash with water. Coat metal parts with light oil.

CS-670

Direction of fall

45°

Retreat

3 m

45°

Retreat

Not this way

FELLING THE TREE

A falling tree can seriously damage anything it may hit - a car, a house, a fence, a power-line, or another tree. There are ways to make a tree fall where you want it, so first decide where that is! Before cutting, clear the area around the tree. You will need good footing while working and you should be able to work the saw without hitting any obstacles. Next, select a path of retreat. When the tree begins to fall you should retreat away from the direction of fall at a 45-degree angle and at least 3 m from the trunk to avoid the trunk kicking back over the stump.

Direction of fall

First cut

Notch

Second cut

One-third tree diameter

5 cm

Hinge

Felling cut

5 cm

Begin the cut on the side to which the tree is to fall. Cut a notch about 1/3 of the way into the tree. The position of this notch is important since the tree will try to fall “into” the notch. The felling cut is made on the side opposite the notch and at a level about 5 cm above the bottom of the notch. Do not try to cut through to the notch with the felling cut. The remaining wood between the notch cut and felling cut about 5 cm will act as a hinge when the tree falls, guiding it in the desired direction. When the tree starts to fall, kill the engine, place the saw on the ground and make your retreat quickly.

To fell big trees with a diameter exceeding twice the bar length, start the notching cuts from one side and draw the saw through to the other side of the notch. Start the back cut on one side of the tree, pivoting the saw through to form the desired hinge on that side. Then remove the saw for the second cut. Insert the saw in the first cut, very carefully so as not to cause kickback. The final cut is made by drawing the saw forward in the cut to reach the hinge.

CS-670

Uphill position

Finish cut

LIMBING

Limbing a fallen tree is much the same as bucking. Never remove a limb from a tree while it is

supporting your weight. 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 the bar in a vertical position. If the saw should kickback, you may not have enough control to prevent possible injury.

BUCKING

Bucking is the sawing of a log or fallen tree into smaller pieces. There are a few basic rules which apply to all bucking operations. Keep both hands on the handles at all times. Support logs if possible. When cutting on a slope or hillside, always stand uphill.

Keep in mind that the wood is heavy and that it will bend and pinch the saw if improperly supported. The trunk will weaken at the point where you make the cut unless the tree is lying on perfectly flat ground or supported as shown. If you make the cut with the tree on the ground, don’t let the saw’s chain dig into the earth; it is harmful for the saw, and you stand a good chance of being struck by flying debris.

To cut the trunk, use the bucking and two-cut sequence shown. The first cut should be no deeper than one-third the trunk diameter.

First cut

DANGER

• Kickback is generated when the rotation of the chain is arrested for some reason. The most dangerous effect of this action occurs when the nose of the bar contacts another object, the chain is momentarily stopped and all the energy of the engine throws the bar upwards and backwards towards the operator.

• The chain saw industry and government agencies have attempted to prescribe various safety devices, but the best protection is to avoid kickback.

• Comply with the safety precautions as listed in this Manual and Safety Manual.

CS-670

Kickback motion

CHAIN BRAKE OPERATION

• Set the lever in the unlocked position before starting to cut.

• If the brake is tripped by kickback reaction, the chain will stop immediately. Release the throttle to avoid possible damage to the engine or clutch.

• Do not attempt to operate the engine with the brake locked.

TESTING THE BRAKE

• Start the engine on a solid level surface and run at a fast idle until warm.

Kickback

Chain brake function

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

• 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.

WARNING

If the chain does not stop immediately, return the saw to your authorized ECHO dealer for repair.

NOTE

• For practice, while cutting a small tree, push the

lever forward to lock the brake.

• Confirm that the brake works properly before

each use.

• If the chain brake is clogged with wood chips,

function of the brake may deteriorate. Always keep the device clean.

• Do not increase engine revolution while the

chain brake is locked.

Chain brake unlock

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

CS-670

• Use the chain brake only in starting or in

emergencies.

• When using throttle latch at starting, keep the

chain brake locked. And after starting the engine, unlock the brake immediately.

IMPORTANT

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

End of the guide bar may be placed at the height of about 35 cm.

35 cm

AUTOMATIC CHAIN BRAKE

Kickback produced from the tip of the guide bar will trip the automatic chain brake. To make sure that the automatic chain brake operates properly, follow these steps:

1. Stop the engine.

2. Hold the saw with the guide bar approximately 35 cm above a wooden surface. Right hand should hold the rear handle, and left hand should hold the front handle.

3. Release the front handle and drop the end of the guide bar against the wooden surface.

4. The impact should lock the chain brake.

IMPORTANT

When checking the operation of the automatic chain brake, use a soft surface substance like wood to provide the impact so the chain is not damaged.

Rear handle should be gripped lightly with the right hand.

Plug

Cold weather “storage” position

Warm weather position

Air cleaner cover

WINTER OPERATION

Use the winter plug to prevent carburetor trouble in winter.

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

NOTE

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

CS-670

CHAIN AND GUIDE BAR COMBINATION

The following combinations are recommended to the model CS-670.

Guide Bar Saw Chain

Length ECHO Part No. Pitch Type Links

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

406 (16) 16D0PD3860 16D0PS3860 9.53 (3/8) 72V 60

508 (20) 20D0PD3870 20D0PS3870 9.53 (3/8) 72V 70

@ 610 (24) 24D0PD3881 24D0PS3881 9.53 (3/8) 72V 81

686 (27) —————— 27D0PS3893 9.53 (3/8) 72V 93

@ Standard configuration

GUIDE BAR

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

CAUTION

Do not use replacement saw chain unless it has been designated as meeting the CSA Z

62.3 kickback performance requirements.

NOTE

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

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

CS-670

MAINTENANCE AND CARE

Your ECHO chain saw is designed to provide many hours of trouble free service. Regular scheduled maintenance will help your chain saw achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the ECHO Dealer do it, each maintenance task has been graded. If the task is not listed ask your ECHO dealer for repairs.

MAINTENANCE INTERVALS

Component/system Maintenance procedure

Recommended ECHO Dealer Maintenance Procedures

SKILL LEVELS

Level 1 = Easy to do. Most required tools come

with unit.

Level 2 = Moderate difficulty. Some specialized

tools may be required.

Level 3 = Experience required. Specialized tools

are required. ECHO recommends that the unit be returned to your ECHO dealer for servicing.

ECHO offers REPOWER™ Maintenance Kits and Parts to make your maintenance job easier. Just below each task heading are listed the various part numbers required for that task. Ask your ECHO dealer for these parts.

Required

Skill level

Daily or

Before use

Every refuel

3 Months or

90 Hours

6 Months or

270 Hours

Yearly or

600 Hours

Cylinder Exhaust Port Inspect/Clean/Decarbon 3 I/C

Do-It-Yourself Maintenance Procedures

Air Filter Inspect/Clean/Replace 1 I/C R* Automatic Oiler Inspect/Adjust 1I Oil Filter Inspect/Replace 1I/R* Fuel Filter Inspect/Replace 1IR* Guide Bar and Oil Holes Inspect/Clean 1 I/C Sprocket Inspect/Replace 2I/R* Spark Plug Inspect/Clean/Replace 2 I/C R* Cooling System Inspect/Clean 2 I/C Muffler Spark Arrestor Inspect/Clean/Replace 2 I/R* Starter Rope Inspect/Replace 1I/R* Screws/Nuts/Bolts Inspect/Tighten/Replace 1I/R*

Meintenance Procedure Letter Codes:

I = INSPECT C = CLEAN R = REPLACE

*=All recommendations to replace are based

on the finding of damage or wear during inspection.

IMPORTANT

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

CS-670

Idle adjusting screw

High speed needle (H)

Low speed needle (L)

CARBURETOR ADJUSTMENT

Every unit is run at the factory and the carburetor is set in compliance with Emission Regulations. In addition, the carburetor is equipped with “H” (High Speed) and “L” (Low Speed) needle adjustment limiters that prevent settings outside acceptable limits.

1. Before adjusting carburetor clean or replace air filter and muffler “Spark Arrestor Screen”.

2. Make sure the bar and chain are properly adjusted.

3. Start engine and run several minutes to bring to operating temperature. Flash choke twice during warm-up to clear any air from the fuel system.

4. Stop engine. Turn “H” speed needle counterclockwise (CCW) to stop. Turn “L” speed needle midway between full clockwise (CW) stop and CCW stop.

5. Idle Speed Adjustment:

• Start engine, turn “Idle” speed adjustment

screw CW until the saw chain begins to turn, then turn screw out CCW until the saw chain stops turning. Turn screw out, CCW, an additional 1/4 turn.

WARNING

Cutting attachment must not move when unit is idling.

6. Accelerate to full throttle for 2 - 3 seconds to clear any excess fuel in the engine, then return to idle. Accelerate engine to full throttle to check for smooth transition from idle to high speed. If engine hesitates turn “L” needle CCW 1/8 turn and repeat acceleration. Continue adjustment until smooth acceleration results.

7. Check idle speed and reset if necessary as described in item 5. If a tachometer is available idle speed should be set to 2800 - 3000 r/min.

CAUTION

When starting, idling adjustment speed should be adjusted not to rotate the saw chain. Correct idle speed is adjusted 2800 to 3000 r/min. Or 1/4 turn CCW from the point the chain stops moving. When you experience trouble with the carburetor, contact your dealer.

CS-670

Air cleaner cover

Spark plug

Cleaner cover latch

Air cleaner cover

AIR FILTER

• Check before every use.

• Release the cleaner cover latch, and remove air cleaner cover and filter.

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

• Reinstall air filter and cover, engage latch.

Cylinder cover

Oil filter

Cleaner cover latch

0.65 mm (0.026 in.)

Air filter cover

Air filter

CHECK FUEL SYSTM

• Check before every use.

• After refueling, make sure fuel does not leak from around fuel pipe, fuel grommet or fuel tank cap.

• In case of fuel leakage there is a danger of fire. Stop using the machine immediately and request your dealer to inspect or replace.

SPARK PLUG

• Check periodically.

• The standard spark gap is 0.6 to 0.7 mm.

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

• Fastening torque: 15 to 17 N·m

(150 to 170 kgf·cm).

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 cap

Fuel cap

Fuel filer

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-670

Groove

Oil hole

GUIDE BAR

• Clean before using.

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

- Clean oil holes with a wire.

• Check sprocket and the clutch and clean the bar mount area before installation of the bar. Replace either or both if worn.

Screen cover

Worn : 0.5 mm

Spark arrestor screen

Cylinder fins

Muffler

SPROCKET

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

- When the sprocket has worn out 0.5 mm or

more, replace it.

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

CYLINDER FINS

• Check periodically.

• Clogged fins will result in poor engine cooling.

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

MUFFLER SPARK ARRESTOR

• Remove air cleaner cover and remove spark plug lead.

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

• Clean carbon deposits from muffler components.

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

• Assemble components in reverse order.

CS-670

DecreaseIncrease

Adjusting knob

NOTE

• Carbon deposits in muffler will cause drop in engine output. Spark arrestor screen must be checked periodically.

AUTOMATIC OILER

• The discharge volume of the automatic oiler is adjusted to 8 mL/min approximately at 7000 r/min, prior to shipment from factory.

- To increase the delivery volume, turn the

adjusting knob clockwise. When the knob touches stopper and stops, this position indicates maximum discharge volume. (15 mL/min at 7000 r/min)

- Do not turn the adjusting knob beyond the

maximum or minimum limit of volume adjustment.

SETTING THE SAW CHAIN

Preset tie strap

Drive link

Tie strap

Right hand cutter

Sharpen lower edge

Left hand cutter

Top plate

Side plate

Guard link

Important points for proper maintenance of saw chain:

• Keep the cutters sharp at all times.

• Keep the left and the right cutters properly aligned.

- Note that blunt or irregular cutters will result in

poor cutting performance, increased vibration of chains and premature breakage of the saw chain.

• Drive link serves to remove sawdust from the groove of the guide bar. Keep the lower edge of the drive link sharp where indicated.

Depth guage

25°

Keep this angle

Push file as shown

10°

Hold the file tipped 10° upward

SETTING SAW CHAIN

• For setting saw chain, round file (5.6 mm dia. 7/32 in.) and flat file are used.

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

CS-670

1/5

One fifth of file diameter remains above cutter edge

Depth gauge tool

25°

Remove until flat with tool

Round off the edge

Side plate angleTop plate filing angle

60°

• Place the depth gauge tool firmly on guide bar so that depth gauge protrudes. Then file top of depth gauge with the flat file until flat with top of the depth gauge tool.

- Be sure to round off the front edge of the

depth gauge.

Properly filed cutters are shown in illustration.

When setting of the chain is finished, soak it in oil and wash away filings completely before using.

- When chain has been filed on the bar, supply sufficient oil to it, rotate the chain slowly to wash away the filings before using again.

- If the chain saw is operated with filings clogged in the groove, the saw chain and the guide bar will be damaged prematurely.

- If the saw chain becomes soiled with resin, for instance, clean it with kerosene and soak in it oil.

60°

Top plate cutting angle Depth gauge

CS-670

0.64 mm (0.025 in.)

NOTE

These angles are referred to as Oregon 72V. To sharpen other follow chain manufacturer’s instruction.

Parallel

TROUBLESHOOTING

Problem

Engine — hard to start Cause Remedy

— does not start

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

• Carburetor • Ask your ECHO dealer

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

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

• Adjust carburetor

• Ask your ECHO dealer

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

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

• Spark plug defective • Replace plug

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

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

• Fuel vent blocked • Clean

• Spark plug • Clean and adjust/replace

• Carburetor • Adjust

• Cooling system blocked • Clean

• Exhaust port/spark • Clean

arrestor screen blocked

WARNING

Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by grounding spark plug near cylinder plug hole, otherwise serious personal injury may result.

CS-670

STORAGE AFTER USE

• Inspect and adjust every part of the chain saw.

- Completely clean every part and repair if necessary.

- Apply thin coating of oil on metal parts to prevent rust.

• Remove chain and guide bar.

• Drain fuel tank, pull starter slowly a few times to drain fuel from carburetor.

• Pour a small amount of clean motor oil into spark plug hole, pull starter and crank the engine until piston reaches: TOP DEAD CENTER.

• Store in a dry area, free from dust.

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

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

NOTE

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

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

WARNING

CAUTION

TECHNICAL DATA

CS-670

Dimension L × W × H mm 435 × 236 × 302 Mass Power head, dry kg 6.5 Without chain and guide bar Engine Type Air-cooled two-stroke single cylinder

Displacement mL (cm³) 66.7 Carburetor Diaphragm type

Magneto Flywheel magneto: CDI system Spark plug NGK BPMR7A Starter Recoil starter Power transmission Automatic centrifugal clutch

Fuel Mixture ratio 50 : 1 ratio with ECHO Power Blend X™, ISO-L-

EGD (ISO/CD 13738) and JASO M345-FC/FD twostroke, air-cooled engine oil.

Gasoline Use 89 octane unleaded.

Do not use fuel containing methyl alcohol, more than 10 % ethyl alcohol or 15 % MTBE. Do not use alternative fuels such as E-20 or E-85.

Tank capacity L 0.64

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

Tank capacity L 0.37

Guide bar and saw chain

Lubrication Adjustable automatic oil pump and manual oil pump

Engine speed Idle r/min 2800 - 3000

Clutch engagement r/min 3800 Wide open throttle r/min 12500 - 14000

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

See page 22 for Chain and Guide Bar Combination

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

* Technical data subject to change without notice.

CS-670

Echo CS-670 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual