x7722271404 / x772000164 CS-400F 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-400F TABLE OF CONTENTS Table of Contents........................................................................................................................................................ 2 Packing List................................................................................................................................................................. 3 Safety................................................................................................................
CS-400F PACKING LIST PACKING LIST The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, guide bar and saw chain installation and other assembly may be necessary. After opening the carton, check for damage. Immediately notify your retailer or ECHO dealer of damaged or missing parts. Use the packing list to check for missing parts. *Some Echo units may be factory pre-assembled. Assembly tools are not supplied with these units.
SAFETY CS-400F SAFETY Rules For Safe Operation Kickback Safety Precautions for Chain Saw Users For more information scan this QR code. KICKBACK may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. Tip contact in some cases may cause a lightning fast reverse REACTION, Kicking the guide bar up and back towards the operator.
CS-400F SAFETY Correct Use Of Chain Brake Chain Brake Operation Locked • Set the lever in the unlocked position before starting to cut. • If the brake is tripped by kickback reaction, the chain will stop immediately. Release the throttle to avoid possible damage to the engine or clutch. • Do not attempt to operate the engine with the brake locked. Testing The Brake • Start the engine on a solid level surface and run at a fast idle until warm.
SAFETY CS-400F 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. 35 cm (14 in.) 3. Release the front handle and drop the end of the guide bar against the wooden surface. 4.
CS-400F SAFETY 14. Keep the handles dry, clean, and free of oil or fuel mixture. 15. Operate the chain saw only in well ventilated areas. 16. Do not operate a chain saw in a tree unless you have been specifically trained to do so. 17. All chain saw service, other than items listed in the Instruction manual maintenance instructions, should be performed by competent service personnel.
SAFETY CS-400F Personal Condition and Safety Equipment Users of this product risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. Proper clothing and safety gear must be worn when operating unit. Physical Condition Your judgment and physical dexterity may not be good: • if you are tired or sick, • if you are taking medication, • if you have taken alcohol or drugs. Operate unit only if you are physically and mentally well.
CS-400F SAFETY The ignition components of this machine generate an electromagnetic field during operation which may interfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemakers should consult with their physician and the pacemaker manufacturer before operating this machine. In the absence of such information, ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.
SAFETY CS-400F All over head electrical conductors and communications wires can have electricity flow with high voltages. This unit is not insulated against electrical current. Never touch wires directly or indirectly, otherwise serious injury or death may result. Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. 10 X7503253302 © 12/2013 ECHO Inc.
CS-400F SAFETY Symbols and Signs Symbol form/shape X7503253302 © 12/2013 ECHO Inc. Symbol description/application Symbol form/shape Symbol description/application WARNING!! Read and follow all safety precaution in the instruction manual. Failure to follow instructions could result in serious personal injury.
EMISSION CONTROL (EXHAUST / EVAPORATIVE) CS-400F 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-400F 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. See PARTS ORDERING instructions for specific information. 14 15 1 13 2 12 11 10 9 8 7 3 4 6 5 16 17 18 19 25 24 23 United States X7503253302 © 12/2013 ECHO Inc.
DESCRIPTION CS-400F 1. 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. 2. Spark arrestor muffler or spark arrestor muffler with catalyst - The muffler or catalytic muffler controls exhaust noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler.
CS-400F DESCRIPTION 4. Drive Sprocket - Drives saw chain. 5. Clutch - Turns drive sprocket when engine rpm is fast enough to provide the power needed for cutting. Preparation For Use Saw chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. Note: The machine may be delivered with guide bar, tip guard, and saw chain separated. Install guide bar, tip guard, and saw chain as follows. For more information scan this QR code.
DESCRIPTION CS-400F 2. Move the chain brake lever (A) (Front hand guard) fully rearward to remove or install the sprocket guard (C). A 3. Extend the knob lever (D), then turn knob counterclockwise to remove knob and sprocket guard. B 4. Remove guide bar and saw chain if necessary. Note: See “Maintenance and Care” section for guide bar/saw chain maintenance procedures. C 5. Mount guide bar on studs (E) and slide toward sprocket (F) to make saw chain installation easier.
CS-400F Adjusting Chain Tension Always loosen sprocket guard knob before turning the chain tension adjuster, otherwise the sprocket guard and tensioner will be damaged. DESCRIPTION For more information scan this QR code. Unlock chain brake 1. Remove air cleaner cover and disconnect spark plug lead. 2. Loosen sprocket guard knob. 3. Hold the bar nose up, and turn the adjuster toward (+) until chain contacts underside of the bar. 4. Tighten knob with the bar nose held up. 5.
OPERATION CS-400F OPERATION Fuel Alternative fuels, such as E-15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement.
CS-400F OPERATION Mixing Instructions 1. Fill an approved fuel container with half of the required amount of gasoline. 2. Add the proper amount of 2-stroke oil to gasoline. 3. Close container and shake to mix oil with gasoline. 4. Add remaining gasoline, close fuel container, and remix. Spilled fuel is a leading cause of hydrocarbon emissions. Some states may require the use of automatic fuel shut-off containers to reduce fuel spillage. For more information scan this QR code.
OPERATION CS-400F Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit. Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious injury, or death. Exhaust can cause serious burns.
CS-400F 2. Fill the fuel tank with fuel mixture. Do not over fill. 3. Fill the chain oil tank with lubricant. Do not over fill. OPERATION A 4. Move ignition switch (A) 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. 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-400F Starting Warm Engine Make sure the bar and chain are free from any obstruction when starting the chain saw. Chain brake 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. Move ignition switch to “RUN” position. 4. Securely hold the chain saw as shown and pull starter handle. 5.
CS-400F OPERATION 7. Be sure that saw chain stops moving when throttle trigger is released. Stopping 1. Release throttle trigger and allow engine to idle. 2. Move ignition switch (A) down to “stop” position. 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.
OPERATION CS-400F • 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.
CS-400F Begin the cut on the side to which the tree is to fall. Cut a notch about 1/3 of the way into the tree. The position of this notch is important since the tree will try to fall “into” the notch. The felling cut is made on the side opposite the notch and at a level about 5 cm (2 in.) above the bottom of the notch. Do not try to cut through to the notch with the felling cut. The remaining wood between the notch cut and felling cut about 5 cm (2 in.
OPERATION CS-400F Bucking Bucking is the sawing of a log or fallen tree into smaller pieces. There are a few basic rules which apply to all bucking operations. Uphill position • Keep both hands on the handles at all times. • Support logs if possible. • When cutting on a slope or hillside, always stand uphill. Keep in mind that the wood is heavy and that it will bend and pinch the saw if improperly supported.
CS-400F OPERATION Chain And Guide Bar Combination The following combinations are recommended for model CS-400F. Guide Bar Length mm (in.) ECHO Part No. Low-kickback Saw Chain Pitch mm (in.) Type Links 406 (16) 16A0CD3757 9.53 (3/8) 91PX / 91VG 57 457 (18) 18A0CD3762 9.53 (3/8) 91PX / 91VG 62 Use of replacement saw chain and/or guide bar other than that specified, or operation without the “tip guard” in place, may cause severe kickback resulting in serious injury.
MAINTENANCE CS-400F 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-400F MAINTENANCE Carburetor Adjustment Every unit is run at the factory and the carburetor is set in compliance with Emission Regulations. In addition, the carburetor is equipped with “H” (High Speed) and “L” (Low Speed) needle adjustment limiters that prevent settings outside acceptable limits. Engine Break-In T L H New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made.
MAINTENANCE CS-400F Air Filter A 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. B Spark Plug • Check periodically. • The standard spark gap is 0.65 mm (0.026 in.). • Fastening torque:15 to 17 N•m (130 to 150 in•lbf). 0.65 mm (0.026 in.) 1. Remove air cleaner cover and remove spark plug. 2.
CS-400F MAINTENANCE Note: Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for sale in the United States to be equipped with a special low permeation fuel supply hose between the carburetor and fuel tank. When servicing model year 2012 and later equipment, only fuel supply hoses certified by EPA can be used to replace the original equipment supply hose. Fines up to $37,500 may be enforced for using an un-certified replacement part.
MAINTENANCE CS-400F 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 out 0.5 mm (0.020 in.) or more, replace it. • Check sprocket when you install new chain. Replace it if worn. Some tree sap and resins are corrosive. Thoroughly wash the guide bar and sprocket areas after each use, then coat metal parts with light oil. Cooling System Cleaning • Check periodically.
CS-400F MAINTENANCE Spark Arrestor Screen A Carbon deposits in muffler will cause drop in engine output and overheating. Spark arrestor screen must be checked periodically. 1. Remove air cleaner cover and remove spark plug lead. 2. Remove spark arrestor cover (C) and screen (B) from muffler (A) body. B C 3. Clean carbon deposits from muffler components. 4. Replace screen if it is cracked, or has holes burned through. 5. Assemble components in reverse order.
MAINTENANCE CS-400F Setting The Saw Chain Preset tie strap Drive link Left hand cutter Top plate Tie strap Side plate Guard link Depth gauge Right hand cutter For more information scan this QR code. Important points for proper maintenance of saw chain: • Keep the cutters sharp at all times. • Keep the left and the right cutters properly aligned. • Note that blunt or irregular cutters will result in poor cutting performance, increased vibration of chains and premature breakage of the saw chain.
CS-400F • Place the depth gauge tool firmly on guidebar so that depth gauge protrudes. Then file top of depth gauge with the flat file until flat with top of the depth gauge tool. MAINTENANCE 1/5 • One fifth of the file diameter remains above cutter edge. • Be sure to round off the front edge of the depth gauge. Depth gauge tool • Properly filed cutters are shown in illustration. • When setting of the chain is finished, soak it in oil and wash away filings completely before using.
TROUBLESHOOTING CS-400F TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Remedy Fuel strainer clogged Fuel line clogged Carburetor Clean or replace Clean or replace See your Echo dealer No fuel at cylinder Carburetor See your Echo dealer Muffler wet with fuel Fuel Mixture too rich Open choke Clean/replace air filter Adjust carburetor See your Echo dealer No spark Stop switch off Electrical problem Interlock switch Turn switch to ON See your Echo dealer See your
CS-400F STORAGE STORAGE Storage After Use • Inspect and adjust every part of the chain saw. • Completely clean every part and repair if necessary. • Apply thin coating of oil on metal parts to prevent rust. • Remove chain and guide bar. • Drain fuel tank completely. Press purge bulb 6 - 7 times to remove remaining fuel from carburetor then drain the tank again. Close choke, start and run the engine until it stops due to lack of fuel. • Allow engine to cool then remove the spark plug and pour 7 cc (1/4 oz.
TECHNICAL DATA CS-400F TECHNICAL DATA Model CS-400F Length 393 mm (15.5 in.) Width with aluminum handle, 245 mm (9.6 in.) Width with plastic handle 243mm (9.56 in) Height 277 mm (10.1 in.) Dry weight 4.7 kg (10.4 lb.) Without chain and guide bar Engine Air-cooled two-stroke single cylinder Displacement 40.2 mL (2.45 cu. in.) Bore 40.0 mm (1.58 in.) Stroke 32.0 mm (1.259 in.) Compressions ratio 6.5 : 1 Carburetor Diaphragm type Spark plug NGK BPM8Y Fuel tank capacity 410 mL (13.
CS-400F WARRANTY STATEMENTS WARRANTY STATEMENTS ECHO LIMITED WARRANTY STATEMENT FOR PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010 ECHO'S RESPONSIBILITY ECHO Incorporated’s Limited Warranty, provides to the original purchaser that this ECHO product is free from defects in material and workmanship.
WARRANTY STATEMENTS CS-400F PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES GD\ UHVLGHQWLDO RU QRQ LQFRPH SURGXFLQJ ZDUUDQW\ GD\ FRPPHUFLDO LQVWLWXWLRQDO DJULFXOWXUDO LQGXVWULDO LQFRPH SURGXFLQJ RU UHQWDO DSSOLFDWLRQ ZDUUDQW\ ATTENTION TWO-STROKE ENGINE POWER PRODUCT OWNERS This ECHO two-stroke engine power product is a quality-engineered unit which has been manufactured to exact tolerances to provide superior performance.
CS-400F NOTES NOTES X7503253302 © 12/2013 ECHO Inc.
NOTES 42 CS-400F X7503253302 © 12/2013 ECHO Inc.
CS-400F SERVICING INFORMATION SERVICING INFORMATION Parts/Serial Number Genuine ECHO Parts and ECHO REPOWER™ Parts and Assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you. You can find these numbers on the engine housing. For future reference, write them in the space provided below. Model No. _________________ SN.
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