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Echo CS-305, CS-306 - page 1
X7503205500 X750008780 12/05 Chain Saw Instruction Manual MODELS : CS-305 CS-306 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. ...
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Echo CS-305, CS-306 - page 2
2 R ULES FOR S AFE O PERA TION A. Kickback Safety Precaution for Chain Saw Users W ARNING! 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. T ip contact in some cases may cause a lightning fast reverse REACTION, Kicking the guide bar up and back towards the ...
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Echo CS-305, CS-306 - page 3
3 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, ...
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Echo CS-305, CS-306 - page 4
4 C ONTENTS Page Rules for Safe Operation .................................................................................................. 2 T echnical Dat a ................................................................................................................. 5 Emission Data ............................................................ ...
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Echo CS-305, CS-306 - page 5
5 T ECHNICAL D ATA * T echnical data subject to change without notice. l e d o M 5 0 3 - S C6 0 3 - S C n o i s n e m i DH x W x L m m0 2 2 x 5 3 2 x 0 8 3 h c n i7 . 8 x 2 . 9 x 9 . 4 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 e n i g n Ee p y T r e d n i l y c e l g n i s , e k o r t ...
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Echo CS-305, CS-306 - page 6
6 EMISSION CONTROL E MISSION D ATA D ESCRIPTION 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 ...
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Echo CS-305, CS-306 - page 7
7 11 12 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 ...
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Echo CS-305, CS-306 - page 8
8 P REP ARA TION FOR U SE G H J K I GUIDE BAR AND SA W CHAIN - INST ALL / REMOVE W ARNING DANGER Saw Chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. 1. Move chain brake lever fully rearward to release chain brake. IMPORT ANT Always loosen guide bar nuts before turning chain tension adjuster , ...
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Echo CS-305, CS-306 - page 9
9 L ADJUSTMENT , CHAIN TENSION IMPORT ANT Always loosen guide bar nuts before turning chain tension adjuster , otherwise clutch cover and tensioner will be damaged. 1. Remove spark plug lead. 2. Loosen two guide bar nuts (I), if necessary . 3. Hold the bar nose up, and turn the adjuster screw (L) clockwise until the chain touches the bottom of the ...
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Echo CS-305, CS-306 - page 10
10 ) . S . U () C I R T E M ( S A GL I OS A GL I O . l a G. z o . l Fr 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 Fuel Mix Chart 50:1 Handling Fuel W ARNING 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 ...
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Echo CS-305, CS-306 - page 11
11 Securely hold the saw. O PERA 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. 1. Move chain brake lever fully forward to engage chain brake before starting. 2. Fill the fuel tank with fuel. Do not over fill. 3. Fill the chain oil tank with lubricant. Do not over fill. 4. ...
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Echo CS-305, CS-306 - page 12
12 A A ST ARTING W ARM ENGINE 1. 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.) 2. Move chain brake lever fully forward to engage chain brake before starting. 3. Turn switch (A) to “RUN” position ( I ). 4. Pull starter handle. 5. Choke may be ...
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Echo CS-305, CS-306 - page 13
13 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 ...
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Echo CS-305, CS-306 - page 14
14 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 ...
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Echo CS-305, CS-306 - page 15
15 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 ...
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Echo CS-305, CS-306 - page 16
16 / T N E N O P M O C M E T S Y S E C N A N E T N I A M E R U D E C O R P D ' Q E R L L I K S L E V E L R O Y L I A D E R O F E B E S U Y R E V E L E U F E R 3 S H T N O M 0 9 R O S R U O H 6 S H T N O M 0 7 2 R O S R U O H Y L R A E Y 0 0 6 S R U O H s e r u d e c o r P e c n a n e t n i a M r e l a e D o h c E d e d n e m m o c e R t r o P ...
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Echo CS-305, CS-306 - page 17
17 D E G F AUTO MA TIC OILER • The discharge volume of the automatic oiler is adjusted to 3 to 4 cc/mm (@ 7000 rpm) prior to shipment from the factory. • Always check oil discharge when in use. • Turn adjusting screw (D) counter-clockwise to increase oil volume, clockwise to decrease oil volume. OIL STRAINER • Check periodically. 1. Do not ...
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Echo CS-305, CS-306 - page 18
18 Worn : 0.5 mm J I H GUIDE BAR AND OIL HOLES • Follow instructions for “Guide Bar and Saw Chain – Install/Remove • Clean after each use - Clean the grooves (H) of the guide bar with a small screwdriver. - Clean oil holes (I) with a wire. • Reverse guide bar periodically. SPROCKET • A damaged sprocket (J) will cause premature damage or ...
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Echo CS-305, CS-306 - page 19
19 COOLING SYSTEM CLEANING • Remove spark plug lead. • Remove two (2) muffler cover screws and muffler cover (A). • Remove four (4) recoil starter housing screws and starter housing (B). • Use a stiff bristle cleaning brush (do not us a metal brush) to remove dirt from cylinder fins in muffler and ignition coil areas. B A MUFFLER SP ARK ARR ...
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Echo CS-305, CS-306 - page 20
20 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 ...
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Echo CS-305, CS-306 - page 21
21 *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 ...
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Echo CS-305, CS-306 - page 22
22 T ype : 90SG HOLD FILE HOLDER LEVEL Depth gauge ONE FIFTH OF FILE DIAMETER REMAINS ABOVE CUTTER EDGE T o sharpen other type chain, follow chain manufacturer ’s instructions 30° PUSH FILE AS SHOWN Keep this angle 1/5 For setting saw chains, round file 4.5 mm (1 1/64”) and flat file are used. • T o keep correct position and correct angle, u ...
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Echo CS-305, CS-306 - page 23
23 T ROUBLESHOOTING 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. • Is the engine compression adequate? • Is fuel syst ...
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Echo CS-305, CS-306 - page 24
24 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 ...
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Echo CS-305, CS-306 - page 25
25 ...
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Echo CS-305, CS-306 - page 26
26 Kickback Motion: • When the bar nose hits another tree, etc. • Improper thrust cutting. C ORRECT U SE OF C HAIN B RAKE 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 ensu ...
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Echo CS-305, CS-306 - page 27
27 NOTES ...
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Echo CS-305, CS-306 - page 28
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 S ER VICING I NFORMA TION P ARTS / SERIAL NUMBER 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 ...
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