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1Top cover

OPERATOR'S MANUAL

CHAIN SAW

ENGLISH

WARNING

Read the instructions carefully and follow the rules for safe
operation.
Failure to do so could result in serious injury.

Содержание CS-420ES

Страница 1: ...1Top cover OPERATOR S MANUAL CHAIN SAW ENGLISH WARNING Read the instructions carefully and follow the rules for safe operation Failure to do so could result in serious injury ...

Страница 2: ...ur ECHO dealer When renting or lending this machine to a person who will operate it always include this operator s manual which provides explanation and instructions When transferring a product please deliver it attaching the operator s manual Specifications descriptions and illustrative material in this literature are as accurate as known at the time of publication but are subject to change witho...

Страница 3: ...utting test 16 Correct use of chain brake 17 Chain brake 17 Checking the brake function of the brake 18 Release the chain brake 18 Non manual chain brake 18 Cutting instruction 19 General 19 Felling a tree 20 Limbing 21 Bucking 21 Tension and compression in timber 22 Service maintenance guide 23 Troubleshooting 24 Saw chain maintenance 25 Service 27 Air filter 27 Check fuel system 27 Fuel filter 2...

Страница 4: ...vide tips for use care and maintenance of the unit Symbol form shape Symbol description application Symbol form shape Symbol description application Carefully read the operator s manual Chain oil fill oil pump Wear eyes ears and head protection Chain oiler adjustment Warning Kickback may occur Purge bulb Primer Emergency stop Carburettor adjustment Low speed mixture Chain brake operation Carburett...

Страница 5: ...erneath it ECHO advises wearing hearing protection at all times If not followed hearing loss can occur You should reduce the risk of hearing damage by wearing either headset type protectors or ear plugs which are approved by an authorized organization All persons who make part of their living using chain saws should be tested periodically for hearing deterioration Always wear a cap or hat when wor...

Страница 6: ...e starting or cutting with the chain saw Keep bystanders and animals out of the work area Do not let anyone hold wood for you to cut Do not start cutting until you have a clear work area secure footing and a planned retreat path from the falling tree Before you start the engine make sure that the saw chain is not contacting anything Keep the handles dry clean and free of oil or fuel mixture Operat...

Страница 7: ...chain saw skating or skidding which can result in personal injury due to loss of control Keep a good firm grip on the saw which both hands with 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 maintain control of the saw Two hands ...

Страница 8: ...rs of chain saw operation Try to fill a part of each work day with jobs other than chain sawing If you experience discomfort redness and swelling of the fingers followed by whitening and loss of feeling consult your physician before further exposing yourself to cold and vibration Repetitive stress injuries It is believed that over using the muscles and tendons of the fingers hands arms and shoulde...

Страница 9: ...o not work from off the ground positions Stop the engine before setting the chain saw down Wood practices Operating a chain saw safely requires a chain saw in proper working order sound judgement and knowledge of the methods which should be applied in each cutting situation Do not let any person use your saw unless he has read this operator s manual and fully understands its instructions Use your ...

Страница 10: ...as a pivot when in contact with a tree or log 11 Guide bar The part that supports and guides the saw chain 12 Chain Chain serving as a cutting tool 13 Oil tank cap For closing the oil tank 14 Starter handle The grip of the starter for starting the engine ES START 15 Fuel tank cap For closing the fuel tank 16 Throttle trigger Device activated by the operator s finger for controlling the engine spee...

Страница 11: ...the right direction Release the chain brake and install the clutch cover over the guide bar studs Tighten two nuts finger tight Ensure that chain tension adjuster fits into bar hole Align the brake connector of the clutch cover to the groove on the side of the front hand guard WARNING For your own safety always stop the engine before performing any of the following operations CAUTION 1 All adjustm...

Страница 12: ...juster clockwise until the chain fits snugly against the underside of the bar A Proper tension B Improper tension Tighten both nuts with the bar nose held up Pull the chain around the bar by hand Loosen the adjustment if you feel tight spots ...

Страница 13: ...ed up Handle petrol with care it is highly inflammable Always store fuel in approved container Chain lubricant Proper lubrication of the chain while in operation reduces the friction between the chain and the guide bar to a minimum and assures a longer life time Use only special chain oil of high quality for this purpose Do not use any waste or reclaimed oil to avoid various problems with the oil ...

Страница 14: ...il first firing sound is heard Push choke control knob all the way in Pull starter handle again WARNING After choke control knob is pulled and then knob is returned to original position throttle remains a little open latch condition If engine is started in this latch condition chain starts to turn Do not start engine before chain brake is activated CAUTION 1 After starting the engine squeeze throt...

Страница 15: ...ed to original position throttle remains a little open latch condition Running 1 Chain brake RELEASED position 2 Throttle trigger lockout 3 Throttle trigger After engine starts allow it to idle for a few minutes Pull front hand guard towards the operator immediately Chain brake RELEASED position Squeeze throttle trigger gradually to increase engine revolution The chain starts moving when the engin...

Страница 16: ...liarize yourself with your chain saw before you start actual cutting For this purpose it may be wise to practice by cutting some small logs or limbs several times Do not allow either people or animals into the work area Multiple operators Keep a safe distance between two or more operators when working together simultaneously NOTE If engine does not stop pull choke control knob all the way out to s...

Страница 17: ...engthen the stopping time Wear and fatigue of the activating brake spring and wear of the brake clutch drum and pivot points may lengthen the brake s stopping time A damaged hand guard and lever may render the brake inoperative DANGER Kickback motion is very hazardous If the tip of the bar touches wood or the like the guide bar kicks back in an instant The chain brake reduces the possibility of in...

Страница 18: ...al chain brake stops the operation of the saw chain in such a manner that the kickback action produced at the end of the guide bar non manually actuates the chain brake To make sure that the non manual chain brake operates properly proceed as follows 1 Stop the engine of the chain saw 2 Operate the front and rear handles with hands grip them lightly so that the guide bar may be placed at the heigh...

Страница 19: ...or limbs Be thoroughly familiar with the controls and the responses of the saw Start the engine see that is running properly Squeeze the trigger to open the throttle wide open then start the cut It is not necessary to press down hard to make the saw cut If the chain is properly sharpened the cutting should be relatively effortless Pushing the saw too hard will slow the engine and cutting will actu...

Страница 20: ...ed bumper 2 5 cm to 5 cm above the bottom of the notch and stop cutting at approximately 1 10 of diameter to the inner edge of the notch in order to leave the uncut portion of the wood as a hinge 1 Notch cuts 2 Backcut 3 Wedges when room 4 Fall A Leave 1 10 of diameter hinge Do not try to cut through to the notch with the felling cut The remaining wood between the notch cut and felling cut will ac...

Страница 21: ...e good enough control to prevent possible injury Know how limb is stressed 1 Leave supporting limbs till last 2 Slide support logs under trunk Bucking Bucking is the sawing of a log or fallen tree into smaller pieces There are a few basic rules which apply to all bucking operations Keep both hands on the handles at all times Support logs if possible When cutting on a slope or hillside always stand...

Страница 22: ...r The second cut is made downwards and should meet the first cut Overbuck 6 Down 7 Unsupported end Underbuck 8 Up 9 Wedge Make angled cut when one section may settle against the other WARNING Never use throttle latch for cutting jobs CAUTION If you have misjudged the effects of tension and compression and cut from the wrong side the timber will pinch the guide bar and chain trapping it Racing the ...

Страница 23: ...pect Clean Adjust Replace 27 Cooling system Inspect Clean 28 Guide bar Inspect Clean 28 Sprocket Inspect Replace 28 Carburettor Adjust Replace and adjust 28 Silencer Inspect Tighten Clean Chain brake Inspect Replace 17 Starter Inspect 24 Screws bolts and nuts Inspect Tighten Replace IMPORTANT Time intervals shown are maximum Actual use and your experience will determine the frequency of required m...

Страница 24: ... replace Clean or replace Replace plug Engine does not crank Internal engine problem Ask your ECHO dealer Engine runs Dies or accelerates poorly Air filter dirty Fuel filter dirty Fuel vent plugged Spark plug Carburettor Cooling system plugged Exhaust port silencer plugged Clean or replace Clean or replace Clean Clean and adjust replace Adjust Clean Clean WARNING All chain saw service operations o...

Страница 25: ... the cutters for damage When sharpening the chain the objective will be to maintain the same angles and profiles throughout its life as when it was new Inspect the chain for damage or wear every time you refuel your chain saw WARNING Switch off the engine before sharpening the chain Always wear gloves when working on chain CAUTION The following faults will increase the risk of kickback considerabl...

Страница 26: ...rst and then take all the other cutters back to the same length 7 The depth control determines the thickness of wood chip produced and must be maintained correctly throughout the chain life 8 As the cutter length is reduced the depth control height is altered and must be reduced 9 Position the depth gauge and file off any of the depth control which protrudes 10 Round off the front of the depth con...

Страница 27: ...ter will cause difficulty in starting engine or abnormalities in engine performance Pick up the fuel filter through fuel inlet port with a piece of steel wire or the like When the filter is dirty replace it When the inside of the fuel tank is dirty it can be cleaned by rinsing the tank out with petrol Oil filter 1 Oil filter 2 Oil tank cap Check periodically Do not allow dust to enter oil tank A c...

Страница 28: ... clockwise until lightly seated and return as indicated below Low speed mixture adjuster L 1 and 1 4 to 3 4 turns open High speed mixture adjuster H 1 and 1 4 to 3 4 turns open Turn idle speed adjuster T clockwise until chain begins to rotate Then back screw 1 2 turn Accelerate to full throttle to check for smooth transition from idle to full throttle Automatic oiler The discharge volume of the au...

Страница 29: ... and pour 10 mL of fresh clean two stroke engine oil into the cylinder through the spark plug hole A Place a clean cloth over the spark plug hole B Pull the recoil starter handle 2 or 3 times to distribute the oil inside the cylinder C Observe the piston location through the spark plug hole Pull the recoil starter handle slowly until the piston reaches the top of its travel and leave it there 8 In...

Страница 30: ... showing their materials The codes refer to the following materials dispose of those plastic parts in accordance with local regulations Please contact your ECHO dealer in case you do not know how you should dispose of waste oil plastic parts Mark Material PA6 GF Nylon 6 Glass fiber PP GF Polypropylene Glass fiber PE HD Polyethylene ...

Страница 31: ...ide bar Guide bar gauge Type of chain Lubrication mm mm cm mm 8 26 0 325 inch 1 47 0 058 inch 38 45 ECHO 1 47 0 058 inch Carlton K2L Oregon 21BPX Adjustable automatic oil pump Sprocket Specified number of teeth 7 Engine Type Carburettor Magneto Spark plug Starter Power transmission Engine displacement Maximum shaft brake power ISO 7293 Recommended maximum speed with cutting attachment Recommended ...

Страница 32: ...32 X750 021 84 0 X750 325 290 0 2012 1Memorandum and back cover 7 2 SUEHIROCHO 1 CHOME OHME TOKYO 198 8760 JAPAN PHONE 81 428 32 6118 FAX 81 428 32 6145 Printed in Japan 1208An 0629 ES ...

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