Echo CS-305 manual

X7503204801 X750006731 06/05 Chain Saw Instruction Manual MODEL : CS-305 W ARNING 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 OPERA TION A. Kickback Safety Precaution for Chain Saw Users 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 [...]

3 CONTENTS Page Rules for Safe Operation .................................................................................................. 2 T echnical Dat a ................................................................................................................. 4 Emission Data .............................................................[...]

4 TECHNICAL DA T A * T echnical data subject to change without notice. IMPORT ANT This spark ignition system complies with Canadian ICES-002. l e d o M 5 0 3 - S C n o i s n e m i DH x W x Lm m0 2 2 x 5 3 2 x 0 8 3 h c n i7 . 8 x 2 . 9 x 2 . 0 1 t h g i e Wy r d , d a e h r e w o Pg k) 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[...]

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 c[...]

6 1. Front handle 2. Hand guard (Chain brake actuating lever) 3. Saw chain 4. Guide bar 5. Chain catcher 6. Sprocket guard 7 . Muffler 8. Rear hand guard 9. Throttle control lockout 10 . Throttle control trigger 1 1. Air cleaner cover 1 2 . Chain tension adjustment screw 1 3 . Pull starter 1 4 . Throttle control latch 1 5 . On / Off switch 1 6 . Oi[...]

7 PREP ARA TION FOR USE W ARNING DANGER Saw Chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. GUIDE BAR AND SA W CHAIN • Remove two guide bar nuts (I) and remove sprocket guard (J). • Mount guide bar (G) on studs, and slide toward sprocket to make saw chain installation easier . • Install[...]

8 L ADJUSTMENT , CHAIN TENSION • Remove spark plug lead. • Loosen two guide bar nuts (I), if necessary . • Hold the bar nose up, and turn the adjuster screw (L) clockwise until the chain touches the bottom of the bar . • Tighten both guide bar nuts with bar nose held up. IMPORTANT! Tighten guide bar nuts to 90 – 110 kgf/cm (80 – 95 in. [...]

9 FUEL T ANK OIL T ANK T ANK INDICA TION IMPORT ANT S tored 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. S tored two-stroke fuel may separate. AL W A YS shake fuel container thoroughly before each use. IMPORTANT Spilled fuel is a leading cause of hydrocarbon emission[...]

10 Securely hold the saw. OPERA TION B C A WHEN THE ENGINE IS COLD W ARNING DANGER Make sure bar and chain are not touching anything when starting the saw. • 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” pos[...]

11 A A ST ARTING W ARM 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 ( I ). • Pull starter handle. • Choke may be used if necessary , but be sure to push it back on first firing sound. NOTE[...]

12 W ARNING DANGER Read the ECHO “CHAIN SAW SAFETY MANUAL” included with your chain saw for additional cutting and safety instruc- tions. 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 t ake care for your own safety , so[...]

13 2” 45° 2” FELLING A TREE DIRECTION OF F ALL Direction of fall Hinge Felling cut First cut Notch Second cut One-third tree diameter LIMBING W ARNING DANGER A falling tree can cause serious injury or damage any- thing 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[...]

14 BUCKING Uphill position FINISH CUT FIRST CUT Board or flat stones KICKBACK • Improper thrust cutting. • When the bar nose hits another tree, etc. Don’t cut with the saw overhead or the bar in a vertical posi- tion. If the saw should kick back you may not have good enough control to prevent possible injury . Bucking is the sawing of a log o[...]

15 NOTE Use ECHO TM replacement guide bars. These guide bars may be considered to have equivalent kickback reduction: • S procket nose guide bars of the same length and nose radius, same pitch and having the same number of teeth. • A hard nose guide bar having the same length and nose radius as a sprocket nose bar . • Low Kick Guard Link T yp[...]

16 A B C D E G I MAINTENANCE AND CARE AIR FILTER • Check before every use. • Pull choke (A) all the way out (close position). • Loosen bolt and remove air cleaner cover (B) and filter (C). • Lightly brush dust off filter, and inspect for damage. AUTOMATIC OILER • The discharge volume of the automatic oiler is adjusted to 3 to 4 cc/mm (@ 7[...]

17 SPROCKET • A damaged sprocket (J) will cause premature damage or wear of saw chain. - When the sprocket has worn out 0.5mm (.020”) or more, replace it. • Check sprocket when you install new chain. Replace it if worn. • Clean sprocket, clutch, and bar mount area before installation of bar. IMPORTANT Some tree sap and resins are corrosive.[...]

18 B A CARBURETOR ADJUSTMENT Engine Break-In New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjust- ments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required. BEFORE MAKING ADJUSTMENTS: • The corr[...]

19 *Reduced nose radius symmetrical bars (OREGON name — Double Guard) W ARNING DANGER 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. Only use saw chain designated as, “LOW-KICKBACK,” that meets the ANSI B175.1-20[...]

20 Depth gauge tool Remove until flat with tool Round off the edge 30° 80° 50° 90 0.64 mm (0.025 in.) Parallel Number indicates Chain type Number indicates Chain type 90S (SPROCKET) (DRIVE LINK) • Properly filed cutters are shown below . (T op plate angle) (Side plate angle) (T op plate cutting angle) (Depth gauge) • When setting of the chai[...]

21 Fuel is not reaching carburetor Fuel is not reaching cylinder Engine does not start (or, is difficult to start) Engine cranks There is fuel in the tank Fuel is reaching carburetor Fuel is reaching cylinder There is spark at high tension cord end There is spark at plug Starting procedures correct No spark at high tension cord end. No spark at plu[...]

22 Improper fuel used ........................................ Use fuel with correct mixing ratio. Never use gasoline of poor quality. Spark plug defective (worn) ........................... Replace. Ouput (engine speed) insufficient Engine keeps running, but chain does not cut clean Output (engine speed) sufficient Engine overheated Firing functio[...]

23 Kickback Motion: • When the bar nose hits another tree, etc. • Improper thrust cutting. CORRECT USE OF CHAIN BRAKE The installation of a chain brake may be mandatory by law or as stipulated by insurance regulations in your area of operation. Y ou should inquire through local government of fices, your employer or your local dealer to ensure t[...]

CONSUMER PRODUCT SUPPORT 1-800-673-1558 8:30 - 4:30 Mon - Fri C.S.T. ECHO, INCORPORA TED 400 O AKWOOD R OAD L AKE Z URICH , IL 60047 www .echo-usa.com SER VICING INFORMA TION P ARTS Genuine ECHO Parts and ECHO REPOWER TM Parts and Assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts alwa[...]