Chain Saw Instruction Manual MODEL : CS-400 WARNING Read rules for safe operation and instructions carefully. ECHO provides an Instruction Manual and a Safety Manual. Both must be read and understood for proper and safe operation.
RULES FOR SAFE OPERATION A. Kickback Safety Precautions for Chain Saw Users WARNING! 1. 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. With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents. 2.
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.
CONTENTS RULES FOR SAFE OPERATION.............................................................................. SYMBOLS AND SIGNS............................................................................................ EMISSION DATA....................................................................................................... PACKING LIST.......................................................................................................... NOMENCLATURE OF PARTS.................................
SYMBOL FORM Symbol form/shape Symbol description/application Symbol form/shape Symbol description/application STOP Carefully read the Instruction manual Chain oil fill Wear eyes, ears and head protection Chain oil pump Chain brake operation Chain oiler adjustment Emergency stop Carburetor adjustment - Low speed mixture Choke control “Cold Start” position (choke closed) Carburetor adjustment - High speed mixture Oil and gasoline mixture Carburetor adjustment - Idle speed DECALS Part Number X503
Emission Data emission control (exhaust & evaporative) EPA 2010 and Later and/or C.A.R.B. TIER III The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to California models only. An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by engine FAMILY).
NOMENCLATURE OF PARTS 4 3 5 6 1 7 25 15 8 2 9 10 11 12 13 14 X524-001810 900191-30131 890191-30131 Part Number X524-001810 REPLACEMENT BAR AND CHAIN X503-007391 GUIDE BAR* CHAIN* PART NO. TYPE LINKS 16” 16A0ED3757 OREGON 91VG 57 18” 18A0ED3762 OREGON 91VG 62 *Or equivalent 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.
NOMENCLATURE OF PARTS 1. Instruction manual - Included with unit. Read before operation and keep for future reference to learn proper, safe operating techniques. 13. Guide bar - The part that supports and guides the saw chain. 14. Saw chain - Chain, serving as a cutting tool. 2. Safety manual - Describe operating and safety instructions for this chain saw. 3.
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.
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.
PREPARATION FOR USE WARNING 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. Bolt (A) Dimple (D) 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.
Guide bar studs Clutch Guide bar adjuster hole Nuts Adjuster pin Clutch cover Brake band Brake connector 4. 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. Unlock the chain brake, and install the clutch cover over the guide bar studs. Ensure chain tension adjuster pin fits into the guide bar adjuster hole, brake band is positioned around clutch drum. Tighten clutch cover nuts finger tight. 6.
Fuel and Lubricant NOTICE: Use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor performance, or severe engine damage and void the product warranty. Read and follow instructions in the Storage section of this manual. fuel statement WARNING 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.
Fuel Mix Chart 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. 50:1 IMPORTANT Spilled fuel is a leading cause of hydrocarbon emissions. Some states may require the use of automatic fuel shut-off containers to reduce fuel spillage. After use • DO NOT store a unit with fuel in its tank.
OPERATION CHAIN LUBRICANT Proper lubrication of the chain while in operation Cap indication WARNING reduces friction between the chain and the guide Fuel/oil indicated byfingers the following to a minimum and assures longer service life. Movingtanks partsare can amputate or cause severe bar injuries. Keep hands, clothing aand loose objects away from illustrations. all openings.
Fuel tank cap SAE No. 30 ....... in summer SAE No. 10 ....... in winter or when cutting resinous trees. • When refueling, also refill chain oil. • Securely hold the chain saw as shown and pull starter handle several times until first firing sound. • Push choke control knob all the way in. Oil tank cap OPERATION WARNING Chain brake Starter handle • After choke control knob is pulled and then knob is returned to original position, throttle remains a little open (latch condition).
RUNNING RUNNING Unlock chain chainbrake brake Unlock • When engine starts, keep idling for a few minutes. warning Thethe sawbrake chainlever should notunlocked move at position idle, otherwise serious • Set in the personal injury may result. before starting to cut. • Pull throttle trigger gradually and increase NOTE revolution of the engine.
CUTTING INSTRUCTION GENERAL CAUTION • Read the ECHO “CHAIN SAW SAFETY MANUAL” included with your chain saw for additional cutting and safety instructions. • Wear suitable hearing protection such as earmuffs or earplugs to protect against objectionable or uncomfortable loud noises. • Do not let the tip of the bar touch anything while the engine is running. At cutting speed the chain is moving at a high rate of speed.
FELLING THE TREE 3 m (10 feet) Retreat Direction of fall warning A falling tree can seriously damage anything it may hit - a car, a house, a fence, a power line, or another tree. There are ways to make a tree fall where you want it, so first decide where that is! 45° Retreat Not this way 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.
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.
CHAIN BRAKE OPERATION Kickback motion • 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. • Hold the saw firmly by the handles and accelerate the engine to a fast idle.
AUTOMATIC CHAIN BRAKE End of the guide bar may be placed at the height of about 35 cm (14 in.). 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.
CHAIN AND GUIDE BAR COMBINATION The following combinations are recommended for model CS-400. Length mm (in.) Standard 406 (16) 457 (18) Optional 406 (16) 457 (18) Guide Bar ECHO Part No. Low-kickback Pitch mm (in.) Saw Chain Type Links 16A0ED3757 18A0ED3762 9.53 (3/8) 9.53 (3/8) 91VG 91VG 57 62 16A0CD3757 18A0CD3762 9.53 (3/8) 9.
Maintenance and Care WARNING 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.
Idle adjusting screw Low speed needle (L) 1. Before adjusting carburetor clean or replace air filter and muffler “Spark Arrestor Screen”. 2. Make sure the bar and chain are properly adjusted. 3. Start engine and run several minutes to bring to operating temperature. Flash choke twice during warm-up to clear any air from the fuel system. 4. Stop engine. Turn “H” speed needle counterclockwise (CCW) to stop. Turn “L” speed needle midway between full clockwise (CW) stop and CCW stop. 5.
Cleaner cover knob AIR FILTER Air cleaner cover • Check before every use. • Loosen cleaner cover knob and remove air cleaner cover and filter. AIR FILTER • Brush off dust lightly, or clean with compressed air, or • Check before every use. replace the air filter. • Loosen cleaner cover knob and remove air • Reinstall air filter and cover. cleaner cover and filter. • Brush off dust lightly, or clean with compressed CHECK FUEL SYSTEM air, or replace the air filter. • Check before every use.
GUIDE BAR Groove Oil hole Sprocket • Clean before using. • Clean the groove of the guide bar with a small screwdriver. • Clean oil holes with a wire. • Reverse guide bar periodically. • Check sprocket and the clutch and clean the bar mount area before installation of the bar. Replace either or both if worn. SPROCKET Worn : 0.5 mm (0.020 in.) • A damaged sprocket will cause premature damage or wear of saw chain. • When the sprocket has worn out 0.5 mm (0.020 in.) or more, replace it.
Exhaust Port Cleaning Level 2 Tools required: Wood or plastic scraper, Cross Head Screwdriver, 8mm Wrench Parts Required: As needed: Muffler gasket 1. Remove air filter cover and remove spark plug lead. 2. Remove engine cover (3 screws). 3. Place piston at top dead center. Remove muffler (A) and muffler gasket (B ). B 4. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port. IMPORTANT Never use a metal tool to scrape carbon from the exhaust port.
setting the saw chain Preset tie strap Left hand cutter Drive link Top plate Tie strap Side plate Guard link Depth guage Right hand cutter Sharpen lower edge 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.
1/5 One fifth of file diameter remains above cutter edge • 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. Depth gauge tool Remove until flat with tool • Be sure to round off the front edge of the depth gauge. Round off the edge Properly filed cutters are shown in illustration. 91VG:80° 30° Top plate filing angle Side plate angle 91VG:60° 0.64 mm (0.025 in.
TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem C h eck Fuel at carburetor Fuel at cylinder Engine cranks starts hard/ doesn't start Engine runs, but dies or does not accelerate properly Engine does not crank Status C au se No fuel at carburetor Fuel strainer clogged Fuel line clogged Carburetor Remedy 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 f
STORAGE AFTER USE • Inspect and adjust every part of the chain saw. • Completely clean every part and repair if necessary. • Apply thin coating of oil on metal parts to prevent rust. • Remove chain and guide bar. • Drain fuel tank, pull starter slowly a few times to drain fuel from carburetor. • Pour a small amount of clean motor oil into spark plug hole, pull starter and crank the engine until piston reaches: TOP DEAD CENTER. • Store in a dry area, free from dust.
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.
PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES • 90-day residential, or non-income producing warranty • 30-day commercial, institutional, agricultural, industrial, income producing, or rental application warranty 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.
ECHO INCORPORATED EMISSION CONTROL WARRANTY STATEMENT FOR ECHO AND SHINDAIWA BRANDS The Environmental Protection Agency (EPA) and the California Air Resources Board (C.A.R.B.) and ECHO Incorporated (ECHO Inc.) are pleased to explain the emission control system warranty on your 2010 and later equipment/small off-road engine (SORE). New equipment/SORE must be designed, built and equipped to meet stringent EPA and C.A.R.B. anti-smog standards. ECHO Inc.
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, Type 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. ___________ Type _________SN.
