Chain Saw Instruction Manual MODEL : CS-303T WARNING Users of this equipment risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. ECHO provides an operator’s manual and a safety manual. Both must be read and understood for proper and safe operation. Failure to do so could result in serious injury.
Rules for Safe Operation WARNING! A. 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. 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.
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.
Contents Page Rules for Safe Operation...................................................................................................2 Technical Data...................................................................................................................6 Emission Data...................................................................................................................7 Description....................................................................................................
SYMBOL FORM Symbol form/shape STOP Symbol description/application WARNING!! Read and follow all safety precaution in the instruction manual. Failure to follow instructions could result in serious personal injury.
Technical Data Model.............................................................................................. CS-303T Dimension L x W x H...................................................................... 260 x 235 x 220 mm (10.2 x 9.2 x 8.7 inch) Weight Power head, dry................................................................. 3.5 kg (7.7 lb) Without chain and guide bar Engine..................................................... Type...............................
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 (engine modification) and, if the second to last character of the Engine Family on the Emission Control Information label (sample below) is “C”, “K”, or “T”, the emission control system is EM and TWC (3-way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions).
Nomenclature of Parts 1 16 15 6 2 3 8 20 11 7 9 10 4 12 5 18 13 17 14 1. Chain brake locking lever/Hand guard 2. Throttle control lockout 3. Throttle control trigger 4. Sprocket guard 5. Chain catcher R EP L A C E ME N T Air cleaner cover Purge bulb Guide bar Saw chain Front handle On / Off switch Fuel tank cap B A R AN D C H AIN GUIDE BAR CHAIN PART NO. PART NO. 12” 12A0CD3745 91PX45CQ 14” 14A0CD3752 91PX52CQ 8 6. 7. 8. 9. 10. 11. 12.
Preparation for Use WARNING Saw chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. kick guard® to bar instructions For saws with Kick Guard® P/N 2894901 and symmetrical or asymmetrical low-kick type guide bars. 1. Install bolt (A) in rear hole (B) of Kick Guard® and through front hole (C) in guide bar. 2. IMPORTANT: Dimple in Kick Guard® (D) must engage recess in guide bar (E). 3. Tighten nut (F) and bolt (A) until snug.
adjustment, chain tension IMPORTANT Always loosen guide bar nuts before turning chain tension adjuster, otherwise clutch cover and tensioner will be damaged. L 1. Remove spark plug lead. 2. Loosen two guide bar nuts, if necessary. 3. Hold the bar nose up, and turn the adjuster screw (L) clockwise until chain fits snugly against underside of bar. 4. Tighten both guide bar nuts with bar nose held up. 5. Pull the saw chain around the guide bar by hand. Reduce chain tension, if you feel tight spots. 6.
Handling Fuel Fuel Mix Chart 50:1 DANGER 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.
OPERATION 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. WARNING 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.
when engine is hard to start D warning Clutch engages and chain may rotate when engine is started with throttle control latch engaged. Never use the throttle control latch for cutting. Use only when starting the engine. 1. Ensure that there is fuel and chain oil in the tanks. 2. Move chain brake lever fully forward to lock chain brake before starting. 3. Lay unit on a flat, clear area and keep bar and chain clear of all obstacles. 4.
running warning 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. • • • After engine starts, allow it to return to idle. Move chain brake lever fully rearward to unlock chain brake. Press throttle control lockout then gradually squeeze throttle trigger to increase engine speed.
Cutting Instructions Nomenclature of Parts warning Read the ECHO “CHAIN SAW SAFETY MANUAL” included with your chain saw for additional cutting and safety instructions. Failure to obey all instructions may result in serious or fatal injuries. 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.
FELLING A TREE warning DIRECTION OF FALL 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° Direction of fall First cut Notch Second cut One-third tree diameter Hinge 2” Felling cut 2” 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.
Don’t cut with the saw overhead or the bar in a vertical position. If the saw should kick back you may not have good enough control to prevent possible injury. 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. BUCKING Keep both hands on the handles at all times. Support logs if possible. Uphill position When cutting on a slope or hillside, always stand uphill.
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.
air filter A C 1. Close choke (A) (Cold Start Position [ ). This prevents dirt from entering the carburetor throat when the air filter is removed. Brush accumulated dirt from air cleaner area. 2. Remove air filter cover (B). Brush dirt from inside cover. 3. Remove air filter (C) and lightly brush debris from filter. Replace filter if it is damaged, fuel soaked, very dirty, or the rubber sealing edges are deformed. 4. If filter can be reused, be certain it: • Fits tightly in the air filter cavity.
guide bar and oil holes H • G • Clean after each use - Clean the grooves (G) of the guide bar with a small screwdriver. - Clean oil holes (H) with a wire. Reverse guide bar periodically. J sprocket Worn : 0.5 mm • C • • A damaged sprocket (C) will cause premature damage or wear of saw chain. Clean sprocket, clutch and bar mount area before installation of bar. Check sprocket when you install new chain. When outer diameter of sprocket is worn 0.5mm (.020”) or more, replace it.
cooling system cleaning • Remove spark plug lead. • Remove two (2) muffler cover screws and muffler cover. • Remove four (4) recoil starter housing screws and starter housing. • Use a stiff bristle cleaning brush (do not use a metal brush) to remove dirt from cylinder fins in muffler and ignition coil areas. muffler spark arrestor IMPORTANT Carbon deposits in muffler will cause a drop in engine output and overheating. Spark arrestor screen must be checked periodically. 1. 2. 3.
Exhaust Port Cleaning Level 2. Parts Required: As needed: Muffler Gasket 1. 2. 3. 4. Remove spark plug lead. Remove muffler cover screws and remove muffler cover. Place piston at top dead center. Remove muffler bolts (A), eyeplate (B), muffler (C), and muffler gasket (D). Check parts for wear or damage, and replace if necessary. 5. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust ports (E). 6. Install muffler gasket (D), muffler (C), eyeplate (B), and muffler bolts (A).
BEFORE MAKING ADJUSTMENTS: • The correct spark plug must be clean and properly gapped. • The air filter element must be clean and properly installed. • The muffler spark arrestor screen and exhaust port must be clear of carbon. • The standard bar and chain combination must be installed to the power head, and properly tensioned. LOW ALTITUDE ADJUSTMENT Engines that have been adjusted to operate at high altitudes must be readjusted to operate properly at altitudes below 2000 feet. 1.
Chain and Guide Bar Combinations The following combinations may be used on CS-303T. BAR LENGTH 12” 14” LOW KICKBACK GUARD BAR LOW KICKBACK SAW CHAIN BAR P/N CHAIN P/N LINKS 12A0CD3745 91PX45CQ 91VG45CQ 45 91PX52CQ 91VG52CQ 52 14A0CD3752 KICK GUARD TYPE PITCH GAUGE ECHO P/N (OEM P/N) 91 3/8” 0.
SETTING THE SAW CHAIN For setting saw chains, round file (4 mm: 5/32”) and flat file are used. • To keep correct position and correct angle, use the file holder. - Round file and flat file are available from your Echo Dealer. • File cutters as below.
Troubleshooting Poor performance of the engine and/or cutting mechanism can normally be prevented by carefully following these instructions. Poor performance can easily be corrected even by a beginner. When the engine does not function properly check the following three (3) points first.
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.
Release: • Improper thrust cutting. INSTALLATION • Echo recommends that the chain brake should be serviced by an authorized Echo servicing dealer. OPERATION • Set the lever in the unlocked position before starting to cut. • If the brake is tripped by kick back 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.
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.
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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.