instruction manual chain saw
CS-590
WARNING
Read the instructions carefully and follow the rules for safe operation.
Failure to do so could result in serious injury.
echo, incorporated
400 Oakwood Road, Lake Zurich, Illinois 60047-1564 |
X750 326-220 5 |
Phone : 847-540-8400 |
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Printed in Japan |
1511NJrh 0839 ES |
WARNING
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
Copyright © 2012 
All Rights Reserved.
RULES FOR SAFE OPERATION
A. Kickback Safety Precautions for Chain Saw Users
WARNING!
KICKBACK may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.
Tip contact in some cases may cause a lightning fast reverse REACTION,
Kicking the guide bar up and back towards the operator.
Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
Either of these reactions may cause you to lose control of the saw which could result in serious personal injury.
The Kick Guard® device is not installed on the guide bar when you purchase your ECHO chain saw.
The Kick Guard® can be used in a majority of cutting operations, and is especially recommended for beginners, homeowners, or chain saw novices.
Most cutting operations can be accomplished with the Kick Guard® in place.
Do not rely exclusively upon the safety devices built into your saw.
As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury.
1.With a basic understanding of kickback, you can reduce or eliminate the element of surprise.
Sudden surprise contributes to accidents.
2.Keep a good firm grip on the saw with both hands, the right hand on the rear handle, and the left hand on the front handle, when the engine is running.
Use a firm grip with thumbs and fingers encircling the chain saw handles.
A firm grip will help you reduce kickback and maintain control of the saw.
Don’t let go.
3.Make sure that the area in which you are cutting is free from obstructions. Do not let the nose of the guide bar contact a log, branch, or any other obstruction which could be hit while you are operating the saw.
4.Cut at high engine speeds.
5.Do not overreach or cut above shoulder height.
6.Follow manufacturer’s sharpening and maintenance instructions for the saw chain.
7.Only use replacement bars and chains specified by the manufacturer or the equivalent.
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CS-590 |
B. 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 onehanded operation.
A chain saw is intended for two-handed use.
2.Do not operate a chain saw when you are fatigued.
3.Use safety footwear, snug-fitting clothing and protective gloves.
Wear eye, hearing, and head protection devices.
4.Use caution when handling fuel. Move the chain saw at least 3 m (10 feet) from the fueling point before starting the engine.
5.Do not allow other persons to be near the chain saw when starting or cutting with the chain saw.
Keep bystanders and animals out of the work area.
6.Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree.
7.Keep all parts of your body away from the saw chain when the engine is running.
8.Before you start the engine, make sure that the saw chain is not contacting anything.
9.Carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body. When carrying a chain saw with the engine running, push the front hand guard forward to engage the chain brake.
10.Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled.
Be sure that the saw chain stops moving when the throttle control trigger is released.
11.Shut off the engine before setting the chain saw down.
12.Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance.
13.When cutting a limb that is under tension, be alert for spring-back so that you will not be struck when the tension in the wood fibers is released.
14.Keep the handles dry, clean, and free of oil or fuel mixture.
15.Operate the chain saw only in well ventilated areas.
16.Do not operate a chain saw in a tree unless you have been specifically trained to do so.
17.All chain saw service, other than items listed in the Instruction manual maintenance instructions, should be performed by competent service personnel.
(For example, if improper tools are used to remove the flywheel or if an improper tool is used to hold the
flywheel in order to remove the clutch, structural damage to the flywheel could occur and could subsequently cause the flywheel to burst.)
18.When transporting your chain saw, use the appropriate guide bar scabbard.
19.Spark arrestor mufflers approved to SAE Standard J335 are standard on ECHO chain saws to reduce the possibility of forest fires.
Do not operate the chain saw with a loose or defective muffler.
Do not remove the spark arrestor screen.
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CONTENTS |
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RULES FOR SAFE OPERATION............................................................................. |
1 |
SYMBOLS AND SIGNS............................................................................................ |
3 |
PACKING LIST......................................................................................................... |
5 |
NOMENCLATURE OF PARTS................................................................................. |
6 |
OPERATOR SAFETY............................................................................................... |
8 |
CORRECT USE OF CHAIN BRAKE......................................................................... |
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PREPARATION FOR USE....................................................................................... |
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FUEL AND LUBRICANT........................................................................................... |
12 |
EMISSION DATA...................................................................................................... |
14 |
OPERATION............................................................................................................. |
15 |
CUTTING INSTRUCTION......................................................................................... |
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CHAIN AND GUIDE BAR COMBINATION............................................................... |
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MAINTENANCE AND CARE.................................................................................... |
24 |
SETTING THE SAW CHAIN..................................................................................... |
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TROUBLESHOOTING.............................................................................................. |
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STORAGE AFTER USE........................................................................................... |
31 |
TECHNICAL DATA................................................................................................... |
32 |
WARRANTY STATEMENTS.................................................................................... |
33 |
WARRANTY REGISTRATION SHEET..................................................................... |
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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.
CIRCLE AND SLASH SYMBOL
This symbol means the specific action shown is prohibited. Ignoring these prohibitions can result in serious or fatal injury.
WARNING
The safety alert symbol accompanied by the word “WARNING” calls attention to an act or condition which CAN lead to serious personal injury or death if not avoided.
CAUTION
The safety alert symbol accompanied by the word “CAUTION” calls attention to an act or condition which may lead to minor or moderate personal injury if not avoided.
NOTICE
This enclosed message provides tips for use, care and maintenance of the unit.
IMPORTANT
The enclosed message provides information necessary for the protection of the unit.
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SYMBOL FORM
Symbol form/shape Symbol description/application |
Symbol form/shape Symbol description/application |
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WARNING!! |
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Oil and gasoline mixture |
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Read and follow all safety |
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precaution in the instruction |
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manual. Failure to follow |
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instructions could result in |
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serious personal injury. |
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Wear eyes, ears and head |
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Chain oil fill |
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protection |
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Tip contact may cause the |
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Chain oiler adjustment |
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guide bar to move suddenly |
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upward and backward, which |
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may cause serious injury |
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Contact of the guide bar tip |
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Decompression device |
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with any object should be |
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avoided |
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Both of the operator’s hands |
L |
Carburetor adjustment |
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must be used to operate the |
- Low speed mixture |
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chain saw |
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Chain brake operation |
H |
Carburetor adjustment |
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- High speed mixture |
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STOP |
Emergency stop |
T |
Carburetor adjustment |
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- Idle speed |
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Choke control “Cold Start” |
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position (choke closed) |
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DECALS
Part Number X505-006660
Part Number X524-005780
REPLACEMENT BAR AND CHAIN
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GUIDE BAR* |
CHAIN* |
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PART NO. |
PART NO. |
18” |
18D0AS3864 |
72LPX64CQ |
20” |
20D0AS3870 |
72LPX70CQ |
24” |
24D0AS3884 |
72LPX84CQ |
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*Or equivalent |
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Note: There may be other replacement components for achieving kickback protection. For details, please refer to the chain and bar combination sheet shown in the instruction manual.
CS-590
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.
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.
ECHO chain saw |
13 x 19 mm T-wrench |
Instruction manual |
Safety manual |
ECHO Power Blend X™ 2-stroke oil sample |
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Warranty sheet |
Guide bar |
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Kick Guard® |
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Saw chain |
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CS-590 |
NOMENCLATURE OF PARTS
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X524-005780 |
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Part Number X505-006660 |
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X505-006660 |
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Part Number X524-005780 |
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REPLACEMENT BAR AND CHAIN
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GUIDE BAR* |
CHAIN* |
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PART NO. |
PART NO. |
18” |
18D0AS3864 |
72LPX64CQ |
20” |
20D0AS3870 |
72LPX70CQ |
24” |
24D0AS3884 |
72LPX84CQ |
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*Or equivalent |
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Note: There may be other replacement components for achieving kickback protection. For details, please refer to the chain and bar combination sheet shown in the instruction manual.
CS-590
*If a decal cannot be read, a new one can be ordered from your ECHO dealer.
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NOMENCLATURE OF PARTS
1.Instruction manual - Included with unit. Read before operation and keep for future reference to learn proper, safe operating techniques.
2.Safety manual - Describe operating and safety instructions for this chain saw.
3.Spiked bumper - Device, fitted in front of the guide bar mounting point, acting as a pivot when in contact with a tree or log.
4.Spark arrestor muffler - The spark arrestor muffler controls the exhaust noise and prevents hot, glowing particles of carbon from leaving the muffler.
5.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.
6.Choke control knob - Device for enriching the fuel/air mixture in the carburetor to aid cold starting.
Also activates fast idle throttle latch.
7.Rear handle (for the right hand) - Support handle located towards the rear of the engine housing.
8.Rear hand guard - Extension on the lower part of the rear handle for protecting the hand from the chain if it breaks or degrooves.
9.Clutch cover - Protective cover to the guide bar, saw chain, clutch and sprocket when the chain saw is in use.
10. Chain tension adjuster - Device to adjust chain tension.
11. Chain catcher - A projection designed to reduce the risk of the operator’s right hand from being hit by a chain which has broken or derailed from the guide bar during cutting.
12. Guide bar - The part that supports and guides the saw chain.
13. Saw chain - Chain, serving as a cutting tool.
14. Bar tip guard - Anti-kickback device attached on the bar nose.
15. Oil tank cap - For closing the oil tank.
16. Starter handle - Pull handle slowly until starter engages then quickly and firmly.
When engine starts, return handle slowly. Do not let handle snap back or damage to unit will occur.
17. Fuel tank cap - For closing the fuel tank.
18.Ignition switch - Device for connecting and disconnecting the ignition system and thus allowing the engine to be started or stopped.
19.Throttle trigger - Device activated by the operator’s finger, for controlling the engine speed.
20. 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.
21. Air cleaner cover - Covers air cleaner.
22. Cleaner cover knob - Device for installing the air cleaner cover.
23. Decompression device - Device for lowering the compression in the cylinder, to aid starting.
24. Front handle (for the left hand) - Support handle located at the front of the engine housing.
25. Cylinder cover - The cooling airflow grill. It covers the cylinder, spark plug and silencer.
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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 feel tingling, numbness or pain in your fingers, hands, wrists or arms. The sooner RSI/CTS is diagnosed, the more
likely permanent nerve and muscle damage can be prevented.
EYE AND HEARING PROTECTION
•Wear eye protection goggles that meet ANSI
Z 87.1 requirements.
Goggles meeting the requirements have the mark “Z 87” stamped on them.
•Wear hearing protection.
If this guideline is not followed, hearing loss can occur.
ECHO recommends wearing hearing protection at all times.
WEAR PROPER CLOTHING
•Snug fitting durable clothing should be worn.
Pants should have long legs, do not wear shorts. Do not wear loose fitting clothing, scarves, neckties, jewelry or any item that may become tangled in surrounding growth or the chain saw itself.
•Wear shoes with non-skid soles.
Do not wear open toed shoes or operate unit barefooted.
•Wear no-slip, heavy duty work gloves to improve your grip on the chain saw handles.
The gloves also help reduce the transmission of machine vibration to your hands.
HOT HUMID WEATHER
•Heavy protective clothing can increase operator fatigue which may lead to heat stroke. Schedule heavy work for early morning, or late afternoon hours when temperatures are cooler.
AVOID HOT SURFACES
•During operation, the muffler or catalytic muffler and surrounding cover become hot.
•Never suspend the saw on a lanyard with the engine running.
•Always use the saw from the right-hand side of your body - never from the left side.
•Always wear proper safety clothing to protect your lower body from sharp saw chain and hot muffler.
•Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result.
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SPARK ARRESTOR MUFFLER
•The spark arrestor muffler controls the exhaust noise and prevents hot, glowing particles of carbon from leaving the muffler.
Make sure the spark arrestor screen is in good repair and properly seated in the muffler.
•Certain internal combustion engines operated on forest, brush, and/or grass-covered areas in the states of Washington, Oregon, Idaho, California, Minnesota, New Jersey and Maine, are required to be equipped with a spark arrestor.
This requirement also applies to all U.S. Forest Service lands.
In some of these areas, the spark arrestor system must be certified per USDA Forest Service 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.
CORRECT USE OF CHAIN BRAKE
Rotational kickback
Reduced radius belongs on top
Rotational kickback 
Chain moving downward at impact
Linear kickback
Pinch
Kickback
DANGER
Kickback safety precaution for chain saw users: Kickback may occur when the nose or tip of the guide bar touches an object or when the wood closes in and pinches the saw chain in the cut.
The installation of a chain brake may be mandatory by law or as stipulated by insurance regulations in your area of operation.
You should inquire through local government offices, your employer or your local dealer to ensure that your chain saw conforms to the required safety standard.
ECHO chain brakes have been designed and tested to comply with international safety standards as follows.
This model needs to use low-kickback chain and bar.
Do not use a combination other than those specified on page 23.
For your own safety, do not remove the chain brake system.
USA : ANSI Standard B175.1
Safety Requirement for chain saws Canada : CSA Standard Z 62.1 CHAIN SAWS
WARNING
ANSI Standard B175.1 stipulates that the brake shall stop the chain 0.12 seconds at an engine speed of 13500 r/min.
It is the responsibility of the owner/operator to ensure that the brake is serviced, adjusted and tested strictly in accordance with the instructions as detailed herein in order
to ensure that the brake performance is maintained in compliance with the Standard B175.1.
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CS-590 |
PREPARATION FOR USE
Bolt (A)
Front hole (B)
Dimple (D)
Kick Guard®
Front hole (C)
Recess (E)
Nut (F)
Guide bar
Unlock chain brake
Brake lever
(Front hand guard)
Spiked bumper
Two nuts 
Clutch cover
Clutch |
Guide bar studs |
Clutch cover |
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Guide bar adjuster hole |
Nuts |
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.
1.Install bolt (A) in front hole (B) of Kick Guard® 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.
GUIDE BAR AND SAW CHAIN INSTALLATION/REMOVAL
1.Remove spark plug lead. (See page 26)
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.Unlock the chain brake, and mount guide bar on studs and slide toward clutch to make saw chain installation easier. Install chain with cutters on top of guide bar facing forward.
5.Install the clutch cover over the guide bar studs. Ensure chain tension adjuster pin fits into the guide bar adjuster hole. Tighten clutch cover nuts finger tight.
CS-590 |
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