x7722271404 / x772000164 CS-400 CHAIN SAW Instruction Manual Burn Hazard The muffler or catalytic muffler and surrounding cover may become extremely hot. Always keep clear of exhaust and muffler area, otherwise serious personal injury may occur. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
TABLE OF CONTENTS CS-400 TABLE OF CONTENTS Table of Contents .............................................................................................. 2 Packing List ....................................................................................................... 4 Safety ................................................................................................................ 5 Rules For Safe Operation ..........................................................................
CS-400 TABLE OF CONTENTS Storage ............................................................................................................ 47 Storage After Use..................................................................................... 47 Specifications .................................................................................................. 48 NOTES ............................................................................................................ 49 Product Registration ...
PACKING LIST CS-400 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.
CS-400 SAFETY SAFETY Rules For Safe Operation Kickback Safety Precautions 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. 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.
SAFETY CS-400 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.
CS-400 SAFETY If the chain does not stop immediately, return the saw to your authorized dealer for repair. Note: • For practice, while cutting a small tree, push the lever forward to lock the brake. • Confirm that the brake works properly before each use. • If the chain brake is clogged with wood chips, function of the brake may deteriorate. Always keep the device clean. • Do not increase engine RPM's while the chain brake is locked.
SAFETY CS-400 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 in.) above a wooden surface. Right hand should hold the rear handle, and left hand should hold the front handle. 3. Release the front handle and drop the end of the guide bar against the wooden surface. 4.
CS-400 9. SAFETY Carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body. 10. Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released. 11. Shut off the engine before setting the chain saw down. 12.
SAFETY ◆ CS-400 Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result. Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. ◆ ALWAYS stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit.
CS-400 SAFETY Operate unit only if you are physically and mentally well. Eye Protection ◆ ◆ Eye protection that meets ANSI Z87.1 or CE requirements must be worn whenever you operate the unit. For additional safety, a full-face shield may be worn over safety glasses or goggles to provide protection from sharp branches or flying debris. Hand Protection Wear sturdy, no-slip, rubber work gloves to improve your grip on the handles.
SAFETY CS-400 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. The components of this machine generate an electromagnetic field during operation, which may interfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemakers should consult with their physician and the pacemaker manufacturer before operating this machine.
CS-400 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-400 International Symbols Symbol 14 Description WARNING! Read and follow all safety precaution in the instruction manual. Failure to follow instructions could result in serious personal injury.
CS-400 Symbol SAFETY Description Measured maximum kickback value, without brake, for approved bar and chain combinations. Symbol Description 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.
EMISSION CONTROL CS-400 The enclosed message provides information necessary for the protection of the unit. Note: This enclosed message provides tips for use, care and maintenance of the unit. CIRCLE AND SLASH SYMBOL This symbol means the specific action shown is prohibited. Ignoring these prohibitions can result in serious or fatal injury.
CS-400 DESCRIPTION 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. 14 13 1 12 2 11 10 3 9 8 7 6 5 4 15 16 17 24 18 23 22 21 X7503255900 © 1/2017 ECHO Inc.
DESCRIPTION 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. CS-400 CHAIN BRAKE LEVER/FRONT HAND GUARD - Locks and unlocks the chain brake to stop or allow saw chain rotation. Guard between the front handle and the saw chain helps protect the hand from injuries if the hand slips off the handle. SPARK ARRESTOR MUFFLER or SPARK ARRESTOR MUFFLER with CATALYST - The muffler or catalytic muffler controls exhaust noise and emission.
CS-400 DESCRIPTION 22. OIL TANK CAP - For sealing the oil tank. 23. FRONT HANDLE - FOR THE LEFT HAND - Support handle located at the front of the engine housing. 24. CYLINDER COVER - The cooling airflow grill. It covers the cylinder, spark plug and silencer. CHAIN SAW TERMS 1. FAST IDLE -Throttle setting that causes engine to operate at a faster speed for easier starting. 2. THROTTLE LATCH - Device that sets idle speed to fast idle when choke control is operated. 3. CHAIN BRAKE - Stops the saw chain. 4.
DESCRIPTION CS-400 Guide Bar and Saw Chain Installation/Removal Note: Align the brake connector (B) of the sprocket guard to the groove on the side of the brake lever (Front hand guard). 1. Remove air cleaner cover and disconnect spark plug lead. 2. Move the chain brake lever (A) (Front hand guard) fully REARWARD (UNLOCK chain brake) to remove or install the sprocket guard (C). 3. Remove sprocket guard nuts (D) and remove sprocket guard (C). 4. Remove guide bar and saw chain if necessary.
CS-400 6. Install sprocket guard over guide bar studs. Ensure chain tension adjuster pin (H) fits into the guide bar adjuster hole (G), brake band (J) is positioned around clutch drum. Tighten sprocket guard nuts finger tight. 7. Turn saw over, and check brake band (J) for correct position on clutch drum. If brake band is not in place around drum, remove sprocket guard, and reinstall. Tighten sprocket guard nuts finger tight. 8. Adjust saw chain tension, as instructed in “Adjustment, Chain Tension”.
DESCRIPTION 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 screw (A) clockwise until chain contacts underside of the bar. 4. Tighten nuts with the bar nose held up. 5. Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots. CS-400 Unlock chain brake A Tighten guide bar nuts to 20-23 N•m (175-200 in•lbf). DO NOT overtighten nuts. Damage to saw may result. 6.
CS-400 OPERATION OPERATION Fuel Diesel fuels and alternative fuels, such as E-15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of diesel or 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.
OPERATION CS-400 Handling Fuel Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury may result. ◆ Use an approved fuel container. ◆ DO NOT smoke near fuel. ◆ DO NOT allow flames or sparks near fuel. ◆ Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize. ◆ NEVER refuel a unit when the engine is HOT or RUNNING! ◆ DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.
CS-400 OPERATION Storage - Fuel storage laws vary by locality. Contact your local government for the laws affecting your area. As a precaution, store fuel in an approved, airtight container. Store in a well-ventilated, unoccupied building, away from sparks and flames. Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabilizer is added. Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use.
OPERATION CS-400 Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is directed away from your face and body. Operation of this equipment may create sparks that can start fires around dry vegetation. This unit is equipped with a spark arrestor to prevent discharge of hot particles from the engine.
CS-400 2. Fill the fuel tank with fuel mixture. Do not over fill. 3. Fill the chain oil tank with lubricant. Do not over fill. 4. Move ignition switch (A) UP to “RUN” position. 5. Push purge pump (B) 3 to 4 times or until fuel is visible in purge pump. 6. Pull choke control knob all the way OUT (CLOSED [ ] choke position). ◆ ◆ ◆ OPERATION A B After choke control knob is pulled and then knob is returned to original position, throttle remains slightly open (fast idle latch condition).
OPERATION CS-400 Use the fast idle throttle latch only in starting. Note: If engine does not start after 5 pulls, repeat instructions. Note: Do not increase engine speed while chain brake is locked. Severe brake damage will result. ◆ Starting Warm Engine Make sure the bar and chain are free from any obstruction when starting the chain saw. 1. Move chain brake lever fully FORWARD to LOCK chain brake before starting. 2. Confirm there is fuel and chain oil in the tanks. 3.
CS-400 OPERATION Running Unlock Chain brake The saw chain should not move at idle, otherwise serious personal injury may result. Note: If saw chain moves adjust carburetor according to “Carburetor Adjustment” instructions in this manual, or see your dealer. 1. After engine starts, allow it to return to idle and warm up before using. 2. Move chain brake lever fully REARWARD to UNLOCK chain brake. 3. Squeeze throttle trigger (B) gradually and increase engine speed. 4.
OPERATION CS-400 Checking Chain Tension Chain tension should be checked frequently during work and corrected as necessary. Do not operate with a loose chain. Chain Lubrication Test Hold the chain just above a dry surface and open the throttle to half speed for 30 seconds. A thin line of “thrown” oil should be seen on the dry surface. Cutting Instructions General ◆ This chain saw is designed for cutting wood. Do not cut metal, plastic or any non-wood material.
CS-400 ◆ 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-400 • Rinse with clean water and dry metal surfaces. • Apply a light coating of engine or bar and chain oil to metal parts after they are cleaned. • Install and properly tension guide bar and chain. Run engine for one minute alternating engine speed between full throttle for 5 seconds and idle for 5 seconds to coat metal parts with additional protective chain oil. ◆ ◆ Do not run a chainsaw not under cutting load at wide open throttle longer than 5 seconds or engine damage may occur.
CS-400 OPERATION Begin the cut on the side to which Direction of fall the tree is to fall. Cut a notch about 1/ Hinge 3 of the way into the tree. The 5 cm (2 in.) position of this notch is important since the tree will try to fall “into” the First cut Felling cut notch. The felling cut is made on the side opposite the notch and at a level Notch about 5 cm (2 in.) above the bottom 5 cm (2 in.) of the notch. Do not try to cut through Second cut to the notch with the felling cut.
OPERATION 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. CS-400 Uphill position • Keep both hands on the handles at all times. Finish cut • Support logs if possible. • When cutting on a slope or hillside, always stand uphill. First cut Support Keep in mind that the wood is heavy and that it will bend and pinch the saw if improperly supported.
CS-400 OPERATION Only use saw chain designated as, “LOW-KICKBACK,” that meets ANSI B175.1 or CSA Z62.1, .3 Standard when tested on the representative sample of chain saws below 3.8 C.I.D., and Echo guide bar specified. Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above. If your tip guard is damaged or lost, contact your Echo dealer for a replacement. For the name of the Echo dealer nearest you, Call: 1-800432-ECHO (3246) or on the web at www.echo-usa.com.
MAINTENANCE CS-400 MAINTENANCE Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit. Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges and hot surfaces. Your ECHO unit is designed to provide many hours of trouble free service.
CS-400 MAINTENANCE REQ’D SKILL LEVEL MAINTENANCE PROCEDURE COMPONENT/SYSTEM Fuel System Inspect (1)* 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 Exhaust Port Inspect/Clean/Decarbon 2 Fuel Filter Inspect/Replace * 1 Fuel Cap Gasket Replace * 1 3 Months Yearly IMPORTANT NOTE - Tim
MAINTENANCE CS-400 This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized service dealer.
CS-400 MAINTENANCE Air Filter 1. Check before every use. 2. CLOSE choke ( 3. Remove air cleaner cover (A) and air filter (B). 4. Lightly brush dust off air filter, or clean with compressed air, or replace the air filter. 5. Install air filter and cover. A ). B Spark Plug • Check periodically. • The standard spark gap is 0.65 mm (0.026 in.). • Fastening torque: 15-17 N•m (130-150 in•lbf). 0.65 mm (0.026 in.) 1. Remove air cleaner cover and remove spark plug. 2.
MAINTENANCE CS-400 2. When the filter is dirty, replace it. 3. When the inside of the fuel tank is dirty, rinse the tank out with gasoline to clean it. Note: Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for sale in the United States to be equipped with a special low permeation fuel supply hose between the carburetor and fuel tank.
CS-400 MAINTENANCE Guide Bar 1. Clean before using. 2. Clean the groove (A) of the guide bar with a small screwdriver. 3. Clean oil holes (B) with a wire. 4. Invert guide bar periodically. 5. Clean the bar mount area before installing of the bar. 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.
MAINTENANCE CS-400 • Certain internal combustion engines operated on forest, brush, and/or grasscovered 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.
CS-400 5. MAINTENANCE Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port. Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder. 6. Install muffler. Tighten muffler mounting bolts (or nuts) to 8-11 N•m (70-95 in•lbf). 7. Install engine cover and attach spark plug lead. 8. Replace air cleaner cover. 9.
MAINTENANCE CS-400 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.
CS-400 • Be sure to round off the front edge of the depth gauge. MAINTENANCE Depth gauge tool • Properly filed cutters are shown in illustration. • When setting of the chain is finished, soak it in oil and wash away filings completely before using. 55° 30° Top plate filing angle Side plate angle • When chain has been filed on the 0.64 mm (0.025 in.) bar, supply sufficient oil to it, move the chain slowly to wash away the filings before using again.
TROUBLESHOOTING CS-400 TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Fuel at carburetor Status No fuel at carburetor No fuel at cylinder Engine starts hard Fuel at cylinder Remedy Fuel strainer or Clean or replace fuel line See your Echo obstructed dealer See your Echo Carburetor dealer OPEN choke Fuel mixture too rich Clean or replace air filter or Adjust carburetor Engine does not start See your Echo dealer Turn switch to ON Spark at end of plug No spark wire Spark at
CS-400 STORAGE 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. STORAGE Storage After Use • Inspect and adjust every part of the chain saw. • Completely clean every part and repair if necessary. • Apply thin coating of oil on metal parts to prevent rust. • Remove chain and guide bar. • Drain fuel tank completely.
SPECIFICATIONS CS-400 SPECIFICATIONS MODEL Length Width with aluminum handle, Width with plastic handle Height Dry weight Engine Displacement Bore Stroke Compressions ratio Carburetor Spark plug Fuel tank capacity Fuel Gasoline Oiling system Chain oil capacity Starter system Clutch Sprocket type Chain brake Idle speed Clutch engagement speed Wide open throttle speed (W.O.T.) Chain tensioner Guide bar Saw chain Standard features CS-400 393 mm (15.5 in.) 245 mm (9.6 in.) 243mm (9.56 in) 277 mm (10.1 in.
CS-400 NOTES NOTES X7503255900 © 1/2017 ECHO Inc.
PRODUCT REGISTRATION CS-400 PRODUCT REGISTRATION Thank you for choosing ECHO Power Equipment Please go to http://www.echo-usa.com/Warranty/Register-Your-ECHO to register your new product on-line. It's FAST and EASY! NOTE: your information will never be sold or misused by ECHO, Inc. Registering your purchase enables us to contact you in the unlikely event of a service update or product recall, and verifies your ownership for warranty consideration.
CS-400 X7503255900 © 1/2017 ECHO Inc.
NOTES CS-400 NOTES 52 X7503255900 © 1/2017 ECHO Inc.
CS-400 X7503255900 © 1/2017 ECHO Inc.
SERVICING INFORMATION CS-400 SERVICING INFORMATION Parts/Serial Number Genuine ECHO Parts and Assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you. You can find these numbers on the engine housing. For future reference write them in the space provided below. Model No. _________________ Serial No.
CS-400 SERVICING INFORMATION Additional or Replacement Manuals Replacement Operator or Safety Manuals, and Parts Catalogs, are available from your Authorized ECHO Service Dealer, or at www.echo-usa.com, or by contacting ECHO Inc., 400 Oakwood Road, Lake Zurich, IL 60047 (800-673-1558). Always check www.echo-usa.com for updated information. Safety Videos are available from your Authorized ECHO Service Dealer. A $5.00 shipping charge is required for each video. X7503255900 © 1/2017 ECHO Inc.
C69715001001 - C69715999999 ECHO, INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.
