Echo CS-305 Manuel d'utilisateur Page 1

X7503204801X75000673106/05Chain SawInstruction ManualMODEL : CS-305WARNING DANGERRead rules for safe operation and instructions carefully. ECHO pr

10Securely hold the saw.OPERATIONBCAWHEN THE ENGINE IS COLDWARNING DANGERMake sure bar and chain are not touching anything whenstarting the saw.•

11AASTARTING WARM ENGINE• Ensure that there is fuel and chain oil in the tanks. (If fueltank was emptied during previous operation, refill tank andpu

12WARNING DANGERRead the ECHO “CHAIN SAW SAFETY MANUAL” includedwith your chain saw for additional cutting and safety instruc-tions. Failure to ob

132”45°2”FELLING A TREEDIRECTIONOF FALLDirection of fallHingeFelling cutFirst cutNotchSecond cutOne-third treediameterLIMBINGWARNING DANGERA fallin

14BUCKINGUphill positionFINISH CUTFIRST CUTBoard or flat stonesKICKBACK• Improper thrust cutting.• When the bar nose hits another tree, etc.Don’t cut

15NOTEUse ECHOTM replacement guide bars.These guide bars may be considered to have equivalent kickback reduction:• Sprocket nose guide bars of the sa

16ABCDEGIMAINTENANCE AND CAREAIR FILTER• Check before every use.• Pull choke (A) all the way out (close position).• Loosen bolt and remove air cleaner

17SPROCKET• A damaged sprocket (J) will cause premature damageor wear of saw chain.- When the sprocket has worn out 0.5mm (.020”) ormore, replace it.•

18BACARBURETOR ADJUSTMENTEngine Break-InNew engines must be operated a minimum durationof two tanks of fuel break-in before carburetor adjust-ments c

19*Reduced nose radius symmetrical bars (OREGON name — Double Guard)WARNING DANGERUse of replacement saw chain and/or guide bar other than that sp

2RULES FOR SAFE OPERATIONA. Kickback Safety Precaution for Chain Saw Users1. With a basic understanding of kickback, youcan reduce or eliminate the el

20Depth gaugetoolRemoveuntil flatwith toolRoundoff theedge30°80°50°900.64 mm (0.025 in.)ParallelNumberindicates ChaintypeNumberindicatesChain type90S(

21Fuel is notreaching carburetorFuel is not reachingcylinderEngine does not start (or, is difficult to start)Engine cranksThere is fuel in the tankFue

22Improper fuel used ... Use fuel with correct mixing ratio. Never usegasoline of poor quality.Spark plug defecti

23Kickback Motion:• When the bar nose hits another tree, etc.• Improper thrust cutting.CORRECT USE OF CHAIN BRAKEThe installation of a chain brake may

CONSUMER PRODUCTSUPPORT1-800-673-15588:30 - 4:30 Mon - Fri C.S.T.ECHO, INCORPORATED400 OAKWOOD R OADLAKE Z URICH, IL 60047www.echo-usa.comSERVICING I

3CONTENTS PageRules for Safe Operation ... 2Techni

4TECHNICAL DATA* Technical data subject to change without notice.IMPORTANTThis spark ignition system complies with Canadian ICES-002.ledoM 503-SCnoisn

5DESCRIPTIONThe ECHO product you purchased has been factory pre-assembled for your convenience. Due to packagingrestrictions, guide bar and saw chain

61. Front handle2. Hand guard(Chain brake actuating lever)3. Saw chain4. Guide bar5. Chain catcher6. Sprocket guard7. Muffler8. Rear hand guard9. Thro

7PREPARATION FOR USEWARNING DANGERSaw Chain is sharp! Always wear gloves when handlingassembly, otherwise serious personal injury may result.GUIDE

8LADJUSTMENT, CHAIN TENSION• Remove spark plug lead.• Loosen two guide bar nuts (I), if necessary.• Hold the bar nose up, and turn the adjuster screw

9FUEL TANK OIL TANKTANK INDICATIONIMPORTANTStored fuel ages. Do not mix more fuel than you expect touse in thirty (30) days, ninety (90) days when a f