Echo Chainsaws CS300 340 345 Maintenance Manual

X7503203102 X750003241 04/03 Chain Saw Instruction Manual MODELS : CS-300 Serial Number 03001001 - 03999999 CS-340 Serial Number 03001001 - 03999999 CS-345 Serial Number 03001001 - 03999999 WARNING DANGER 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.

2 RULES FOR SAFE OPERATION A. Kickback Safety Precaution for Chain Saw Users WARNING! 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. Ei- ther of these reactions may cause you to lose control of the saw which could result in serious personal injury. Do not rely exclusively upon the safety devices built into your saw. As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury. 1. With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents. 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 main- tain control of the saw. Don’t’ let go. 3. Make sure that the area in which you are cutting is free from obstructions. Do not let the nose of the guide bar contact a log, branch, or any other obstruction which could be hit while you are operating the saw. 4. Cut at high engine speeds. 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 speci- fied by the manufacturer or the equivalent. B. Other Safety Precautions 1. Do not operate a chain saw with one hand! Se- rious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation. A chain saw is intended for two-handed use. 2. Do not operate a chain saw when you are fa- tigued. 3. Use safety footwear; snug-fitting clothing; pro- tective gloves; and eye, hearing and head pro- tection devices. 4. Use caution when handling fuel. Move the chain saw at least 3 m (10 feet) from the fueling point before starting the engine. 5. Do not allow other persons to be near the chain saw when starting or cutting with the chain saw. Keep bystanders and animals out of the work area. 6. Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree. Copyright© 2003 By Echo, Incorporated All Rights Reserved.

3 CONTENTS Page Rules for Safe Operation .................................................................................................. 2 Technical Data ................................................................................................................. 4 Emission Data ................................................................................................................. 5 Description ...................................................................................................................... 5 Nomenclature of Parts ...................................................................................................... 6 Preparation for Use .......................................................................................................... 7 Fuel and Lubricant ............................................................................................................ 8 Operation ......................................................................................................................... 9 Cutting Instructions ......................................................................................................... 11 Maintenance and Care ................................................................................................... 15 Chain and Guide Bar Combinations ............................................................................... 18 Setting the Saw Chain .................................................................................................... 18 Troubleshooting .............................................................................................................. 20 Storage .......................................................................................................................... 21 Correct Use of Chain Brake ........................................................................................... 22 Servicing Information ...................................................................................................... 24 7. Keep all parts of your body away from the saw chain when the engine is running. 8. Before you start the engine, make sure that the saw chain is not contacting anything. 9. 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. 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. 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 the items listed in the Instruction Manual maintenance instructions, should be performed by competent chain saw service personnel. (For example, if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur and could subsequently cause the flywheel to burst.) 18. When transporting your chain saw, use the appropriate guide bar scabbard. 19. Spark arrestor mufflers approved to SAE Stan- dard J335b are Standard on ECHO Chain saws to reduce the possibility of forest fires. Do not operate the chain saw with a loose or defective muffler. Do not remove the spark arrestor screen.

4 TECHNICAL DATA * Technical data subject to change without notice. l e d o M 0 0 3 - S C 0 4 3 - S C 5 4 3 - S C n o i s n e m i D H x W x L m m 0 2 2 x 5 3 2 x 0 6 2 5 4 2 x 5 3 2 x 0 8 3 h c n i 7 . 8 x 2 . 9 x 2 . 0 1 6 . 9 x 2 . 9 x 0 . 5 1 t h g i e W y r d , d a e h r e w o P g k ) b l 1 . 7 ( 2 . 3 ) b l 3 . 7 ( 3 . 3 ) b l 5 . 7 ( 4 . 3 r a b e d i u g d n a n i a h c t u o h t i W e n i g n E e p y T l m r e d n i l y c e l g n i s , e k o r t s - o w t , d e l o o c - r i A t n e m e c a l p s i D ) . n i . u c 3 8 . 1 ( 1 . 0 3 ) . n i . u c 3 0 . 2 ( 4 . 3 3 r o t e r u b r a C o t e n g a M g u l P k r a p S r e t r a t S n o i s s i m s n a r t r e w o P e p y t m g a r h p a i D m e t s y s I D C : o t e n g a m l e e h w y l F Y 8 - M P B K G N r e t r a t s l i o c e R h c t u l c l a g u f i r t n e c c i t a m o t u A l e u F o i t a r e r u t x i M d n e l B r e w o P o h c E h t i w o i t a r 1 : 0 5 M T . l i o e k o r t s - 2 , l o h o c l a l y h t e m g n i n i a t n o c l e u f e s u t o n o D . d e d a e l n u e n a t c o 9 8 . E B T M % 5 1 r o l o h o c l a l y h t e % 0 1 n a h t e r o m y t i c a p a C k n a T L ) . S . U z o l f 6 . 8 ( 5 2 . 0 l i O n i a h c d n a r a B ) l i o r o t o m r o ( l i o n i a h c d n a r a b O H C E y t i c a p a C k n a T L ) . S . U . z o . l f 5 ( 5 1 . 0 r a b e d i u G n i a h c w a S d r a d n a t S . n i 2 1 d r a d n a t S . n i 4 1 d r a d n a t S . n i 6 1 l a n o i t p O . n i 6 1 , 4 1 l a n o i t p O . n i 6 1 , 2 1 l a n o i t p O . n i 4 1 , 2 1 n o i t a c i r b u L p m u p l i o c i t a m o t u a e l b a t s u j d A d r a d n a t S s e r u t a e f e l d n a H p o T e l d n a h l a n o i t n e v n o C d r a u g d n a h r a e R , d r a u g d n a h t n o r F , e c i v e d n o i t a r b i v - i t n A , e k a r b n i a h C , t u o k c o l l o r t n o c e l t t o r h T r e l f f u m r o t s e r r a k r a p S , r e h c t a c n i a h C

5 DESCRIPTION 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 contents list to check for missing parts. CONTENTS 1 - Power Head 1 - Guide Bar 1 - Saw Chain 1 - Instruction Manual 1 - Safety Manual 1 - Warranty Registration Card 1 - Limited Warranty Statement 1 - Kick Guard Installation Manual 1 - Scrench 1 - Echo Power Blend TM 2-stroke oil sample EMISSION CONTROL EPA Phase II IMPORTANT ENGINE INFORMATION ENGINE FAMILY: 2EXHS.0334RA DISPLACEMENT: 33.4 CC THIS ENGINE MEETS U.S. EPA PAHSE II EMISSION REGULA- TIONS FOR S.O.R.E. REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS. EMISSION COMPLIANCE PERIOD : 300 HRS. EMISSION DATA PRODUCT EMISSION DURABILITY The 300 hour emission durability compliance period is the time span selected by the manufacturer certifying the engine emissions output meets applicable California and/or U.S. EPA emissions regulations, provided that approved maintenance procedures are followed as listed in the Maintenance Section of this manual. The emission control system for these engines are EM (Engine Modification). An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by engine FAMILY).

6 1. Hand guard (Chain brake actuating lever) 2. Throttle control lockout 3. Throttle control trigger 4. Sprocket guard 5. Chain catcher 6. Air cleaner cover 7. Purge bulb 8. Guide bar 9. Saw chain 10. Front handle 11. On / Off switch 12. Rear hand guard 13. Fuel tank cap 14. Pull starter 15. Oil tank cap 16. Throttle control latch 17. Tip guard 18. Muffler 19. Lanyard ring CS-345 NOMENCLATURE OF PARTS CS-300, CS-340 18 18 19

7 B A PREPARATION FOR USE UP The machine may be delivered with guide bar (A), tip guard, and saw chain (B) separated. Install guide bar, tip guard, and saw chain as follows: WARNING DANGER Saw Chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. CAUTION 1. All adjustments should be made cold. 2. Always wear gloves when working on chain. 3. Do not operate with a loose chain. GUIDE BAR AND SAW CHAIN • Follow the instructions enclosed with tip guard to install guard to guide bar. • Remove two guide bar nuts and remove sprocket guard (D). • Mount guide bar (A) on studs, and slide toward sprocket to make saw chain installation easier. • Install saw chain (B) as shown, with cutters facing forward. IMPORTANT Be certain tensioner (C) fits into lower adjuster hole before tightening guide bar nuts. NOTE Move chain brake lever fully rearward to install sprocket guard to saw. • Install sprocket guard (D), and tighten guide bar nuts finger tight. • Adjust saw chain tension, as instructed in “Adjust- ment, Chain Tension.” ADJUSTMENT, CHAIN TENSION • Loosen two guide bar nuts. • Turn the adjuster screw clockwise until the chain touches the bottom of the bar. • Hold the bar nose up and tighten the chain until there is no clearance between the bar and chain. • Tighten both guide bar nuts with bar nose held up, to eliminate clearance. • Pull the saw chain around the guide bar by hand. Loosen the adjustment, if you feel tight spots. • Start the engine and run at low speed. Stop and readjust, if necessary. A B D C D

8 FUEL STATEMENT GASOLINE - Use 89 Octane [R+M/2] (mid grade or higher) gasoline or gasohol known to be good quality. Gasohol may contain up to 10% Ethyl (grain) alcohol or 15% MTBE (methyl tertiary-butyl ether). Gasohol containing methyl (wood) alcohol is NOT approved. TWO STROKE OIL - A two-stroke engine oil meeting ISO-L- EGD (ISO/CD 13738) and J.A.S.O. FC Standards must be used. Echo brand premium Power Blend TM Universal 2-Stroke Oil meets these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD and J.A.S.O. FC certified oil, such as Echo premium Power Blend TM , will void the two-stroke engine warranty. (Emission related parts only are covered for two years, regardless of two-stroke oil used, per the statement listed in the Emission Defect Warranty Explana- tion.) 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 and remix. 5. Install fuel container cap and wipe any spilled fuel from container and surrounding area. IMPORTANT Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabi- lizer is added. Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use. 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. Contact your ECHO dealer for ordering information. 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. • use bar and chain oil of high quality for this purpose. • Do not use used or reclaimed oil to avoid various oiler problems. • Use ECHO bar and chain oil. • When ECHO bar and chain oil is not available: Use motor oil, etc. • Use bar and chain oil of the following grades: SAE NO. 30 ..... in summer SAE NO. 10 ..... in winter or when cutting resinous trees. • When refueling, also refill chain oil. 50 FUEL AND LUBRICANT Oil Gasoline FUEL TANK OIL TANK Fuel Mix Chart 50:1 TANK INDICATION ) . S . U ( ) C I R T E M ( S A G L I O S A G L I O . l a G . z o . l F r e t i L . c c 1 2 5 6 . 2 1 . 5 8 . 2 1 4 8 0 2 0 8 0 6 1 0 0 4

9 CS-345 CS-300 CS-340 A A B C Securely hold the saw. OPERATION WHEN THE ENGINE IS COLD • Move chain brake lever fully forward to engage chain brake before starting. • Fill the fuel tank with fuel. • Fill the chain oil tank with lubricant. • Turn switch (A) to “RUN” position. • Pull choke (B) all the way out (close position). • Push purge bulb (C) 10 times. • Pull starter handle several times until first firing sound is heard. (Hold machine with your knee or foot.) • Push choke (B) all the way in. (open position) • Pull starter handle again. WHEN THE ENGINE IS HARD TO START • Press throttle control lockout down while holding throttle trigger, and push in throttle control latch. • Pull starter handle. • When engine starts, immediately squeeze throttle trigger to release the latch. WARNING DANGER Clutch engages and chain will rotate when engine is started with throttle control latch engaged. Make sure bar and chain are not touching anything when starting the saw. After engine starts, release throttle trigger to idle engine. Never use the throttle control latch for cutting. Use only when starting the engine. NOTE Do not pull starter rope out to the maximum possible position. Do not allow recoil handle to snap back against the casing.

10 STARTING WARM ENGINE • Ensure that there is fuel and chain oil in the tanks. (If fuel tank was emptied during previous operation, refill tank and push purge bulb 10 times.) • Turn switch (A) to “RUN” position. • Pull starter handle. • Choke may be used if necessary, but be sure to push it back on first firing sound. NOTE If engine does not start after 5 pulls, use cold start procedure. RUNNING • After engine starts, allow it to return to idle. • Move chain brake lever fully rearward to release chain brake. • Squeeze throttle trigger with throttle control lockout gradually to increase engine speed. • Saw chain starts moving when the engine reaches approximately 4200 rpm. • Ensure proper acceleration and lubrication of chain and bar. • Do not run the engine at high speed unnecessarily. • Be sure that saw chain stops moving when throttle trigger is released. STOPPING • Release throttle trigger and turn switch (A) to STOP position. NOTE If engine does not stop, pull choke out fully to stop engine. Check and repair stop switch before starting the engine again. CS-345 CS-300 CS-340 A A CS-345 CS-300 CS-340 A A

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Echo Chainsaws CS300 340 345 Maintenance Manual

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