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X7503205500

X750008780
12/05

Chain Saw

Instruction Manual

MODELS :

CS-305

CS-306

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.

Summary of Contents for CS-305

Page 1: ... 12 05 Chain Saw InstructionManual MODELS CS 305 CS 306 WARNING DANGER Readrulesforsafeoperationandinstructionscarefully ECHOprovidesanInstruction ManualandaSafety Manual Bothmustbereadandunderstoodforproperandsafe operation ...

Page 2: ... when the en gine is running Use a firm grip with thumbs and fingers encircling the chain saw handles Afirm 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 cut ting 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...

Page 3: ...therthantheitemslisted in the Instruction Manual maintenance instruc tions should be performed by competent chain saw service personnel For example if im proper tools are used to remove the flywheel or if an improper tool is used to hold the fly wheel in order to remove the clutch structural damage to the flywheel could occur and could subsequently cause the flywheel to burst 18 When transporting ...

Page 4: ... Data 6 Description 6 Nomenclature of Parts 7 Preparation for Use 8 Fuel and Lubricant 9 Operation 11 Cutting Instructions 13 Maintenance and Care 16 Chain and Guide Bar Combinations 21 Troubleshooting 23 Storage 24 Correct Use of Chain Brake 26 Servicing Information 28 ...

Page 5: ...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 y t i c a p a C k n a T l m S U z o l f 3 9 0 7 2 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 m S U z o l f 5 0 5 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 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 4 1 l ...

Page 6: ...DURABILITY The 300 hour emission durability compliance period is the time span selected by the manufacturer certifying the engine emissions output meets applicable emissions regulations provided that approved maintenance procedures are followed as listed in the Maintenance Section of this manual EPA Phase 2 California Tier 2 The emission control system for these engines are EM Engine Modification ...

Page 7: ...Esta unidad puede ser peligrosa y producir lesiones personales graves si no se usa en forma adecuada Para reducir el riesgo de lesioarse los operadores los ayudantes y los espectadores deben leer y comprender el Manual Del Operador y los Manuales De Seguridad que se entregan escritos en español REPLACEMENT BARANDCHAIN Note There may be other replacement components for achieving kickback protection...

Page 8: ...its into lower adjuster hole K beforetighteningguidebarnuts NOTE Move chain brake lever fully rearward to install sprocket guard to saw 6 Install sprocket guard J and tighten guide bar nuts I finger tight KICK GUARD TO BAR INSTRUCTIONS For saws with Kick Guard P N 2894901 and sym metrical or asymmetrical low kick type guide bars 1 Install bolt A in rear hole B of Kick Guard and through front hole ...

Page 9: ...than 90 days stale fuel may cause hard starting poor performance orsevereenginedamageandvoidtheproduct warranty Read and follow instructions in the Storage section of this manual 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 methy...

Page 10: ... may require the use of automatic fuel shut off containers to reduce fuel spillage After use DO NOT store a unit with fuel in its tank Leaks can occur Return unused fuel to an approved fuelstoragecontainer Storage Fuel storage laws vary by locality Contact your local government for the laws affecting your area As a precaution store fuel in an approved airtight container Store in a well ventilated ...

Page 11: ...pen position 9 Pull starter handle again NOTE If engine does not start after 5 pulls repeat instructions WHEN ENGINE IS HARD TO START WARNING DANGER Clutchengagesandchainmayrotatewhenengineisstarted 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 fu...

Page 12: ...ure tor 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 release chain brake Press throttle control lockout then gradually squeeze throttle trigger to increase engine speed Saw chain starts moving when the engine reaches approxi mately 4200 rpm Ensure proper acceleration and lubrication of chain and ba...

Page 13: ... thoroughly familiar with the controls and the re sponses of the saw Start the engine see that it is running properly Squeeze the trigger to open the throttle wide open and start the cut If the chain is properly sharpened the cutting should be relatively effortless It is not necessary to press down hard to make the saw cut Pushing the saw too hard will slow the engine and cutting will actually be ...

Page 14: ...to the notch The felling cut is made on the side opposite the notch and at a level about 2 above the bottom of the notch Do not try to cut through to the notch with the felling cut The remaining wood between the notch cut and felling cut about 2 will act as a hinge when the tree falls guiding it in the desired direction When the tree starts to fall kill the engine place the saw on the ground and m...

Page 15: ...he tree is lying on perfectly flat ground or supported as shown If you make the cut with the tree on the ground don t let the saw s chain dig into the earth it is harmful for the saw and you stand a good chance of being struck by flying debris To cut the trunk use the bucking and two cut sequence shown The first cut should be no deeper than one third the trunk diameter WARNING DANGER KICKBACK IS D...

Page 16: ... C C E C A L P E R R T C E P S N I I E T O N T N A T R O P M I d e r i u q e r f o y c n e u q e r f e h t e n i m r e t e d l l i w e c n e i r e p x e r u o y d n a e s u l a u t c A m u m i x a m e r a n w o h s s l a v r e t n i e m i T e c n a n e t n i a m S E T O N E R U D E C O R P E C N A N E T N I A M n o i t c e p s n i g n i r u d r a e w r o e g a m a d f o g n i d n i f e h t n o d e...

Page 17: ...to oil tank 2 Clogged strainer will cause difficulty in starting engine or abnormalitiesinengineperformance 3 Pickupthefuelstrainer G throughfuelinletportwithapiece of steel wire or the like 4 When the strainer is dirty replace or wash it in suitable cleaningfluid 5 When the inside of the fuel tank is dirty rinsing the tank out with suitable cleaning fluid will clean it AIR FILTER 1 Close choke A ...

Page 18: ... the sprocket has worn out 0 5mm 020 or more replace it Check sprocket when you install new chain Replace it ifworn Clean sprocket clutch and bar mount area before installation of bar IMPORTANT Some tree sap and resins are corrosive Thoroughly wash the guide bar and sprocket areas after each use then coat metal parts with light oil SPARK PLUG Checkperiodically Gap 0 65mm 026 in Replace if either e...

Page 19: ...sandremovemuffler cover 2 Remove spark arrestor screen cover gaskets and screenfrommufflerbody 3 Cleancarbondepositsfrommufflercomponents NOTE When cleaning carbon deposit be careful not to damage the catalytic element inside muffler 4 Replace screen if it is cracked plugged or has holesburnedthrough 5 Assemble components in reverse order Cylinder Exhaust Port IMPORTANT The cylinder exhaust port m...

Page 20: ...en turn the screw CCW until saw chain stops moving Turn screw CCW an additional 1 4 turn 5 Accelerate to full throttle for 2 3 seconds to clear excess fuel from engine then return to idle Accelerate to full throttle to check for smooth transition from idle to full throttle If engine stops or stalls after full warm up return the unit to your authorized ECHO dealer for adjustment 6 Install grommet c...

Page 21: ...ed or lost contact your Echo dealer for a replacement For the name of the Echo dealer nearest you Call 1 800 432 ECHO 3246 or on the web at www echo usa com Refer to your Chain Saw Safety Manual for kick guard application information L E D O M R A B H T G N E L E L B U O D R A B D R A U G N I A H C W A S K C I K D R A U G N P O H C E N P M E O O H C E O N T R A P S K N I L E P Y T H C T I P E G U ...

Page 22: ...ngs completely before using When chain has been filed on the bar supply sufficient oil to it rotate the chain slowly to wash away the filings before using again If the chain saw is operated with filings clogged in the groove the saw chain and the guide bar will be damaged prematurely If the saw chain becomes soiled with resin for instance clean it with kerosene and soak it in oil Place the depth g...

Page 23: ... notcrank Fuel strainer clogged Clean Fuel pipe clogged Clean Suction insufficient Make sufficient Strainer clogged Clean Carburetor out of order Disassemble and check C D I module defective Removeandreplace Ignition coil defective Removeandreplace Wire connection defective Reconnect High tension cord connection defective Repair as necessary Switch is grounded Switchon Insulator cracked Replace pl...

Page 24: ...t clogged with carbon Clean as necessary Throttle is not fully open Readjust Chain tension incorrect Adjust Chain wrongly set Set correctly Depth incorrect Readjust Chain saw pressed against tree to firmly Press lightly Clutch shoe worn out Replace No oil in tank Refill Oil delivery incorrect Adjust Oil contaminated with dust Rinse tank and fill with new oil Oil viscosity inappropriate Use oil wit...

Page 25: ...25 ...

Page 26: ... performance is maintained in compliance with the Standard B175 1 2000 Function When the lever is pushed forward chain brake instantly works to stop the chain Release When the lever is fully pulled toward the operator brake is released INSTALLATION Echo recommends that the chain brake should be serviced by an authorized Echo servicing dealer OPERATION Set the lever in the released position before ...

Page 27: ...27 NOTES ...

Page 28: ... product you may call the ECHO ConsumerProductSupportDepartmentat1 800 673 1558from8 30am to 4 30 pm Central Standard Time Monday through Friday Before calling please know the model and serial number of your unit to help your Consumer Product Support Representative WARRANTY CARD This card is our means of registering all original owners of ECHO equipment The card plus proof of purchase provides you...

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