Operator’s Manual CS-590 Chain Saw The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Read and understand all provided literature before use. Failure to do so could result in serious injury. Note: This product complies with CAN ICES-2/NMB-2.
TABLE OF CONTENTS CS-590 TABLE OF CONTENTS Introduction................................................................................................................. 3 Servicing Information.................................................................................................. 3 Parts/Serial Number........................................................................................... 3 Service ................................................................................................
CS-590 INTRODUCTION INTRODUCTION 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. Read and understand all provided literature. Literature contains specifications and information for safety, operation, maintenance, storage, and assembly specific to this product.
SERVICING INFORMATION CS-590 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 www.echo-usa.com. When presenting your unit for Warranty service/ repairs, proof of purchase is required.
CS-590 PACKING LIST PACKING LIST The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, some 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 contents list to check for missing parts.
SAFETY The optional Kick GuardTM device is not installed on the guide bar when you purchase your chain saw. The optional Kick GuardTM 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 optional Kick GuardTM in place. CS-590 Rotational kickback Chain moving downward at impact Do not rely exclusively upon the safety devices built into your saw.
CS-590 SAFETY Correct Use Of Chain Brake 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. Unlocked • 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.
SAFETY CS-590 For your own safety, do not remove the chain brake system. 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. Chain brakes have been designed and tested to comply with international safety standards as follows: USA: ANSI Standard B175.
CS-590 SAFETY 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.
SAFETY CS-590 15. Operate the chainsaw only in well ventilated areas. 16. Do not operate a chainsaw in a tree unless you have been specifically trained to do so. 17. All chain saw service, other than items listed in the Operator’s manual maintenance instructions, should be performed by competent service personnel.
CS-590 SAFETY 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 optional Kick GuardTM device is not installed on the guide bar when you purchase your chain saw.
SAFETY CS-590 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. Correct Use Of Chain Brake 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.
CS-590 SAFETY • 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 while the chain brake is locked. Do not use a bar and chain combination other than those specified in this manual. For your own safety, do not remove the chain brake system.
SAFETY CS-590 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 (14 inches) 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.
CS-590 SAFETY 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 chainsaw 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.
SAFETY CS-590 Chain saws shall be used in accordance with the operating instructions and safety precautions listed in the operator's manual(s). It shall be the responsibility of the owner to see that such instructions and precautions are given to every operator who uses the saw. During operation, the muffler or catalytic muffler and surrounding cover become hot. Never suspend the saw on a lanyard with the engine running.
CS-590 ◆ ◆ ◆ SAFETY Chain brake - brake actuated by kickback energy, not manual activation. Reduced-kickback guide bar - reduced nose radius guide bar. Front hand guard - a structural barrier between the front handle of a chain saw and the guide bar. Periodically Check fuel system (fuel lines, vent, grommet, fuel tank, and fuel cap) for leaks 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.
SAFETY CS-590 Personal Condition and Safety Equipment Cancer and Reproductive Harm www.P65Warnings.ca.gov The muffler or catalytic muffler and surrounding cover may become extremely hot. Always keep clear of exhaust and muffler area, otherwise serious personal injury might occur. 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.
CS-590 SAFETY Hand Protection Wear sturdy, no-slip, rubber work gloves to improve your grip on the handles. Gloves also provide protection against cuts and scratches, cold environments, and reduce the transmission of machine vibration to your hands. Hearing/Ear Protection ECHO recommends wearing personal protective equipment whenever unit is used.
SAFETY CS-590 The components of this machine generate an electromagnetic field during operation, which can 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 this machine by anyone who has a pacemaker.
CS-590 SAFETY Repetitive Stress Injuries (RSI) 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.
SAFETY CS-590 Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. International Symbols Symbol Description WARNING! Read and follow all safety precautions in the instruction manual. Failure to follow instructions could result in serious personal injury.
CS-590 Symbol SAFETY Description Symbol Description Chain Oiler Adjustment Chain Brake Operation Choke Control “COLD START” Position (Choke Closed) Purge Pump Choke Control “RUN” Position (Choke Open) STOP De-Compression Device STOP STOP / Momentary STOP Switch Note: Not all symbols will appear on your unit.
SAFETY CS-590 Manual Safety Symbols and Important Information 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.
CS-590 EMISSION CONTROL EMISSION CONTROL (EXHAUST & EVAPORATIVE) CARB And EPA Emissions Control Information 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 “B”, “C”, “K”, or “T”, the emission control system is EM and TWC (3way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions).
DESCRIPTION CS-590 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. Safety label is for example only. Your label my appear slightly different. 3 2 1 4 5 6 13 7 12 11 10 9 14 8 15 16 CKA wob wb cs 20D0AS3870 72LPX70CQ 51.9 34.8 29.
CS-590 DESCRIPTION 1. Rear Handle - For The Right Hand 2. Choke Control Knob 3. Chain Brake Lever / Front Hand Guard 4. Spark Arrestor Muffler Or Spark Arrestor Muffler With Catalyst 5. Spiked Bumper 6. Guide Bar 7. Saw Chain 8. Kick GuardTM (Optional) 9. Chain Catcher 10. Sprocket Guard Nuts 11. Chain Tension Adjuster 12. Chain Break / Sprocket Guard 13. Rear Hand Guard 14. Support Handle (for Left Hand) 15. Decompression Device 16. Air Cleaner Cover 17.
DESCRIPTION CS-590 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, and saw chain separated. Install guide bar, optional Kick GuardTM, and saw chain as follows. Instructions to Install Optional Kick GuardTM to Bar Tools Needed: Two 11 mm (7/16 in.) Wrenches. 1. Install bolt (A) in rear hole (B) of Kick GuardTM and through front hole (C) in guide bar. 2.
CS-590 4. DESCRIPTION Remove guide bar (D) and saw chain (E) as necessary. Note: See “Maintenance” section for guide bar, sprocket, and saw chain maintenance procedures. H C G F B E D 5. Mount guide bar (D) on studs (F) and slide toward clutch drum sprocket (G) to make saw chain (E) installation easier. Install saw chain around clutch drum sprocket and guide bar as shown, with cutters on top of guide bar facing forward. 6. Install sprocket guard (C) over guide bar studs (F).
DESCRIPTION CS-590 Adjusting Chain Tension Always loosen sprocket guard nuts before turning the chain tension adjuster, otherwise the sprocket guard and tensioner will be damaged. 1. Remove air cleaner cover and disconnect spark plug lead. 2. Loosen sprocket guard nuts. 3. Hold the bar nose up, and turn the adjuster toward (+) 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.
CS-590 OPERATION Tighten guide bar nuts to 20-23 N•m (200 to 230 kgf•cm, 175-200 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. Note: All chains require frequent adjustments. Winter Operation The Air Shutter is used to prevent carburetor trouble in winter. 1. Remove the air cleaner cover (A). 2. Pull the air shutter (B) to COLD [ ] position.
OPERATION CS-590 Fuel Requirements Gasoline - Use fresh (purchased within the last 30 days from the pump) 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. Use of ECHO branded fuel is recommended to extend engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines.
CS-590 OPERATION Handling Fuel Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury will result. ◆ Use an approved fuel container. Mark fuel containers as containing 2-stroke mixture fuel. ◆ DO NOT smoke near fuel. ◆ DO NOT allow flames or sparks near fuel. ◆ Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize. ◆ NEVER refuel a unit when the engine is HOT or RUNNING! ◆ DO NOT fill fuel tanks indoors.
OPERATION CS-590 Mixing Instructions Stored fuel ages. Do not mix more fuel than you expect to use in 30 days, 90 days when a fuel stabilizer is added. 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. Fuel to Oil Mix – 50:1 Ratio US Metric Gas Oil Gas Oil gal. fl.oz. L cc 1 2.
CS-590 OPERATION Chain Lubricant Proper lubrication of the chain while in operation reduces friction between the chain and the guide bar to a minimum and assures a longer service life. Note: Cap indication - Fuel/oil tanks are indicated by the following illustrations: • Use bar and chain oil of high quality for this purpose. • Do not use used or reclaimed oil to avoid various oiler problems. • Use high quality bar and chain oil. • Use bar and chain oil of the following grades: • SAE No. 30....
OPERATION CS-590 Operation of this equipment may create sparks that can start fires around dry vegetation. 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 Make sure the bar and chain are free from any obstruction when starting the chain saw. 1.
CS-590 ◆ ◆ ◆ 7. OPERATION After choke control knob is pulled and then knob is returned to original position, throttle remains slightly open (fast idle latch condition). The chain will attempt to move when engine is started with fast idle throttle latch engaged. Do not start engine before chain brake is locked. Securely hold the chain saw and pull starter handle (D) several times until first starting sound. D Note: Do not pull starter rope out to the maximum possible position.
OPERATION CS-590 Starting Warm Engine Make sure the bar and chain are free from any obstruction when starting the chain saw. 1. Move chain brake lever (A) fully forward to lock chain brake before starting. 2. Confirm there is fuel and chain oil in the tanks. 3. Move stop switch (B) to UP position. 4. Press the decompression device. 5. Securely hold the chain saw as shown and pull starter handle (D). 6.
CS-590 OPERATION 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 (A) fully REARWARD to UNLOCK chain brake. 3. Squeeze throttle trigger lock and throttle trigger gradually to increase engine speed. 4.
OPERATION CS-590 Note: Return the unit to your authorized 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.
CS-590 ◆ 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! OPERATION 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.
OPERATION CS-590 Sap from palm trees may corrode metal parts unless proper saw maintenance is performed. Make sure to clean metal parts from palm sap immediately after use. • Remove sprocket cover. Clean wood chips and sawdust from cover and engine crankcase. • Never use metal tools for cleaning which can scratch the metal paint and allow corrosion to develop. • Clean sap accumulation from metal parts with cloth and warm water with soap. • Rinse with clean water and dry metal surfaces.
CS-590 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.
OPERATION CS-590 Limbing Limbing a fallen tree is much the same as bucking. Never stand on the tree that you are limbing. When limbing, caution is the word. Be careful of the tip touching other limbs. Always use both hands. Don’t cut with the saw overhead or aligned vertically with your body. If the saw should kickback, you may not have enough control to prevent possible injury. Bucking Bucking is the sawing of a log or fallen tree into smaller pieces.
CS-590 OPERATION 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.
OPERATION CS-590 Chain And Guide Bar Combination The following combinations are recommended for model CS-590. Guide Bar Length mm (in.) ECHO Part No. 406 (16) 16D0PS3860 457 (18) 18D0AS3864 18D0PS3866 508 (20) Saw Chain Pitch mm (in.) Type Links 9.53 (3/8) 72LPX60CQ 60 9.53 (3/8) 72LPX64CQ 72LPX66CQ 64 66 20D0AS3870 20D0PS3870 9.53 (3/8) 72LPX70CQ 70 610 (24) 24D0AS3884 24D0PS3881 9.53 (3/8) 72LPX84CQ 72LPX81CQ 84 81 686 (27) 27D0PS3893 9.
CS-590 MAINTENANCE • Hard nose guide bars of the same length and nose radius as a sprocket nose bar. Saw Chain (Low-kickback) 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. MAINTENANCE Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings.
MAINTENANCE CS-590 The use of emission control components other than those specifically designed for this unit is a violation of federal law. Skill Levels Level 1 = Easy to do. Common tools may be required. Level 2 = Moderate difficulty. Some specialized tools may be required. Level 3 = See your dealer. Click HERE or go to http://www.echo-usa.com/products/maintenance-kit or HERE https://www.shindaiwa-usa.com/you-can.aspx For information about maintenance kits.
CS-590 COMPONENT / SYSTEM MAINTENANCE MAINTENANCE PROCEDURE REQ’D SKILL LEVEL Cooling System Inspect / Clean 2 Recoil Starter Rope Inspect / Clean * 1 Screws / Nuts / Bolts Inspect / Tighten / Replace * 1 Fuel System Inspect 1 Guide Bar & Sprocket Nose Inspect 1 Air Filter Replace * 1 Oil Filter Inspect / Replace * 1 Fuel Filter Inspect * 1 Fuel Cap Gasket Inspect * 1 Spark Plug Inspect / Clean / Replace * 1 Muffler Spark Arrestor Inspect/Clean/Replace * 2 Cylinder Exhaus
MAINTENANCE CS-590 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. H L T Engine Break-In New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made.
CS-590 MAINTENANCE When carburetor adjustment is completed, the saw chain should not move at idle, otherwise serious personal injury can 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.
MAINTENANCE CS-590 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 (A) will cause difficulty in starting engine or abnormalities in engine performance. 1.
CS-590 MAINTENANCE Oil Filter • Check periodically. • Do not allow dust to enter into oil tank. • A clogged oil filter (B) will affect the normal lubricating system. B 1. Pull filter out through oil port, and inspect filter. 2. If the filter is dirty, wash it in gasoline or replace it as follows: 3. Do not remove the wire coil clamp to remove the filter. Pinch the filter with the fingers on one hand and the line with the other hand. Pull and twist slightly to separate. 4.
MAINTENANCE CS-590 Guide Bar 1. Clean before using. 2. Clean the groove of the guide bar (A) with a small screwdriver. 3. Clean oil holes (B) with a wire. 4. Invert guide bar periodically. 5. Clean the guide bar mount area before installing the guide bar. A B Sprocket • A damaged sprocket will cause premature damage or wear of saw chain. Worn 0.5 mm (0.020 in.) • When the sprocket has worn 0.5 mm (0.020 in.) or more, replace it. • Check sprocket when you install new chain. Replace it if worn.
CS-590 MAINTENANCE 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.
MAINTENANCE CS-590 Setting The Saw Chain Preset Tie Strap Left Hand Cutter Drive Link Top Plate Tie Strap Guard Link Side Plate Depth Gage Right Hand Cutter Important points for proper maintenance of saw chain: • Keep the cutters sharp at all times. • Keep the left and the right cutters properly aligned. • Note that blunt or irregular cutters will result in poor cutting performance, increased vibration of chains and premature breakage of the saw chain.
CS-590 MAINTENANCE • To keep correct position and correct angle, use a file holder. 90° • Hold the file horizontally. • 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. 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.
MAINTENANCE • 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. CS-590 0.64 mm (0.025 in.) • 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. Parallel Depth gauge To sharpen other chains, follow chain manufacturer’s instructions.
CS-590 TROUBLESHOOTING TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Fuel at carburetor Status Cause Remedy No fuel at carburetor Fuel strainer or fuel line obstructed Clean or replace No fuel at cylinder Carburetor See your dealer See your dealer OPEN choke Engine starts hard Fuel at cylinder Muffler wet with fuel Fuel mixture too rich or Engine does not start Adjust carburetor See your dealer Spark at end of plug wire No spark Spark at plug Engine runs, but dies
STORAGE CS-590 ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Status Engine runs, but dies Spark plug Plug dirty or worn Normal wear Clean and adjust or replace Carburetor Improper adjustment Vibration Adjust or Cooling system Cooling system dirty or plugged Extended operation in dirty or dusty locations Clean Spark arrestor screen Spark arrestor screen plugged Normal wear Replace Internal engine problem See your dealer Engine does not accelerate properly Engine does not crank
CS-590 SPECIFICATIONS • 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. Remove the spark plug lead from the spark plug. Remove the spark plug. Pour 7 cc (0.25 oz.) of fresh, clean, two-stroke engine oil into the cylinder through the spark plug hole. • Store in a dry area, free from dust.
PRODUCT REGISTRATION MODEL CS-590 CS-590 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-15 or E-85. Oil ISO-L-EGD (ISO/CD 13738) and JASO M345-FD two-stroke, air-cooled engine oil. Oiling system Adjustable automatic oiler Chain oil capacity 300 mL (10.2 US. fl. oz.) Starter system Automatic rewind starter Clutch Centrifugal type Sprocket type Spur type, 7-tooth, 3/8 in.
CS-590 X7503264706 © 09/2020 ECHO Incorporated PRODUCT REGISTRATION 63
C69015001001 - C69015999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.