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OPERATION

CS-4010

34

X7503380000

7/22 ECHO Incorporated

Note:  Do not increase engine speed while chain brake is locked. 

Severe brake damage will result.

Running

The saw chain should not move at idle, otherwise serious 
personal injury may result.

Note:  If saw chain moves adjust carburetor according to 

“Carburetor Adjustment” instructions in this manual, or see 

your dealer.

1.

After engine starts, allow it to 

return to idle and warm up before 

using.

2.

Move chain brake lever fully 

REARWARD to UNLOCK chain 

brake.

3.

Squeeze throttle trigger (A) 

gradually and increase engine 

speed.

4.

The chain starts running when 

the engine reaches clutch 

engagement speed (see 

technical data page).

5.

Confirm proper acceleration and 

lubrication of chain and bar.

6.

Do not run the engine at high 

speed unnecessarily.

7.

Be sure that saw chain stops moving when throttle trigger is released.

Unlock Chain brake

A

Summary of Contents for CS-4010

Page 1: ...xhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Read and understand all provided literature before use Failure to do so could result in serious injury Note This product complies with CAN ICES 2 NMB 2 ...

Page 2: ...al Condition and Safety Equipment 8 Rules for Safe Operation 12 Correct Use of Chain Brake 14 Emission Control Exhaust Evaporative 20 CARB and EPA Emissions Control Information 20 Description 21 Contents 23 Assembly 23 Preparation For Use 23 Operation 27 Fuel 27 Chain Lubricant 30 Winter Operation 31 Starting Cold Engine 31 Starting Warm Engine 33 Running 34 Stopping 35 Checking Chain Tension 35 C...

Page 3: ...k Plug 44 Check Fuel System 45 Fuel Filter 45 Oil Filter 46 Guide Bar 46 Sprocket 46 Cooling System Cleaning 47 Spark Arrestor Muffler 47 Spark Arrestor Screen 47 Exhaust Port Cleaning 48 Carburetor Adjustment 49 Setting the Saw Chain 50 Troubleshooting 53 Storage 55 Storage After Use 55 Specifications 56 Product Registration 57 Notes 59 ...

Page 4: ...formation for safety operation maintenance storage and assembly specific to this product Scan QR codes for more information For additional literature including safety manuals where applicable or questions regarding terms used in this manual visit https www echo usa com manuals OR https www shindaiwa usa com manuals SERVICING INFORMATION Parts and Serial Number Genuine ECHO parts and assemblies for...

Page 5: ...ial number of your unit Product Registration Register your ECHO equipment online at www echo usa com or by filling out the product registration sheet included in this manual Registering your product confirms warranty coverage and provides a direct link to ECHO if we find it necessary to contact you Additional Literature In addition to finding information online information is available from your A...

Page 6: ...vides information necessary for the protection of the unit Note This enclosed message provides tips for use care and maintenance of the unit CIRCLE AND SLASH SYMBOL This symbol means the specific action shown is prohibited Ignoring these prohibitions can result in serious or fatal injury International Symbols Symbol Description Symbol Description WARNING Read and follow all safety precautions in t...

Page 7: ...r tip with any object should be avoided Measured maximum kickback value without brake for approved bar and chain combinations Both of the operator s hands must be used to operate the chainsaw Fuel and Oil Mixture Hot Surface Chain Oil Fill Chain Brake Operation Chain Oiler Adjustment Choke Control COLD START Position Choke Closed Choke Control RUN Position Choke Open Purge Bulb Symbol Description ...

Page 8: ...Equipment Cancer and Reproductive Harm www P65Warnings ca gov The muffler or catalytic muffler and surrounding cover may become extremely hot Always keep clear of exhaust and muffler area otherwise serious personal injury might occur Decompression Device STOP Momentary STOP Switch Symbol Description Symbol Description STOP STOP ...

Page 9: ...ield can be worn over safety glasses or goggles to provide protection from sharp branches or flying debris Hand Protection Wear sturdy no slip rubber work gloves to improve your grip on the handles Gloves also provide protection against cuts and scratches cold environments and reduce the transmission of machine vibration to your hands Hearing and Ear Protection ECHO recommends wearing personal pro...

Page 10: ...ase operator fatigue which may lead to heat stroke Schedule heavy work for early morning or late afternoon hours when temperatures are cooler The components of this machine generate an electromagnetic field during operation which can interfere with some pacemakers To reduce the risk of serious or fatal injury persons with pacemakers should consult with their physician and the pacemaker manufacture...

Page 11: ...s of feeling consult your physician before further exposing yourself to cold and vibration Repetitive Stress Injuries RSI It is believed that overusing the muscles and tendons of the fingers hands arms and shoulders may cause soreness swelling numbness weakness and extreme pain in those areas Certain repetitive hand activities may put you at a high risk for developing a Repetitive Stress Injury RS...

Page 12: ...t Do not operate this product indoors or in inadequately ventilated areas Engine exhaust contains poisonous emissions and can cause serious injury or death Rules for Safe Operation Kickback Safety Precautions for Chainsaw Users 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 Tip contact in some cases may cau...

Page 13: ...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 the engine is running Use a firm grip with thumbs and fingers encircling the chainsaw handles A firm grip will help you reduce kickback and maintain control of the saw Don t let go 3 Make sure that the area in which you are cutting is free from obstructions Do n...

Page 14: ...Operation Set the lever in the unlocked position before starting to cut If the brake is tripped by kickback reaction the chain will stop immediately Release the throttle to avoid possible damage to the engine or clutch Do not attempt to operate the engine with the brake locked Unlocked Locked ...

Page 15: ...rake Confirm that the brake works properly before each use If the chain brake is clogged with wood chips function of the brake may deteriorate Always keep the device clean Do not increase engine RPM while the chain brake is locked Do not use a bar and chain combination other than those specified in this manual For your own safety do not remove the chain brake system The installation of a chain bra...

Page 16: ... 1 3 Automatic Chain Brake Kickback produced from the tip of the guide bar will trip the automatic chain brake To make sure that the automatic chain brake operates properly follow these steps 1 Stop the engine 2 Hold the saw with the guide bar approximately 35 cm 14 in above a wooden surface Right hand should hold the rear handle and left hand should hold the front handle 3 Release the front handl...

Page 17: ...opped the guide bar and saw chain to the rear and the muffler away from your body 10 Do not operate a chainsaw that is damaged improperly adjusted or not completely and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is released 11 Shut off the engine before setting the chainsaw down 12 Use extreme caution when cutting small size brush and saplings beca...

Page 18: ...until the hole is sufficiently large so as to introduce the entire nose tip of the guide bar This technique should reduce the danger of kickback 25 Allow your chainsaw to cool before refueling and do not smoke while refueling Chainsaws shall be used in accordance with the operating instructions and safety precautions listed in the operator s manual s It shall be the responsibility of the owner to ...

Page 19: ...ving safety devices may result in serious or fatal injury Unit includes safety devices that reduce the likelihood of kickback Chain brake brake actuated by kickback energy not manual activation Reduced kickback guide bar reduced nose radius guide bar Low kickback saw chain saw chain that meets ANSI kickback performance requirements when configured with the bar chain recommendations in this manual ...

Page 20: ...l line emission control system is EVAP evaporative emissions Evaporative emissions for California models are only applicable to fuel tanks and fuel feed lines An Emission Control Label is located on the engine This is an EXAMPLE ONLY information on label varies by engine FAMILY Product Emission Durability Emission Compliance Period The 50 or 300 hour emission compliance period is the time span sel...

Page 21: ...your unit Make sure the decal s is legible and that you understand and follow the instructions on it If a decal cannot be read a new one can be ordered from your ECHO dealer Safety label is for example only Your label my appear slightly different 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ...

Page 22: ...ne rpm is fast enough to provide the power needed for cutting 1 Rear Hand Guard 2 Purge Pump 3 Choke Control Knob 4 Chain Brake Lever Front Hand Guard 5 Spark Arrestor Muffler Or Spark Arrestor Muffler With Catalyst 6 Saw Chain 7 Guide Bar 8 Chain Catcher 9 Chain Tension Adjuster 10 Chain Brake Sprocket Guard 11 Cylinder Cover 12 Spark Plug 13 Throttle Trigger Lockout 14 Rear Handle For The Right ...

Page 23: ...ASSEMBLY Preparation For Use Saw chain is sharp Always wear gloves when handling assembly otherwise serious personal injury may result Note The machine may be delivered with guide bar tip guard and saw chain separated Install guide bar tip guard and saw chain as follows Momentary STOP Switch automatically returns to RUN position Engine can start unintentionally Always remove spark plug lead from s...

Page 24: ...r 3 Securely tighten nut F and bolt A Guide Bar and Saw Chain Installation Removal 1 Release cylinder cover latches A by inserting a screw driver B and lifting latch tip as shown Remove cylinder cover C 2 Remove spark plug lead 3 Remove sprocket guard nuts D and remove sprocket guard E 4 Remove guide bar F and saw chain if necessary Note See Maintenance and Care section for guide bar saw chain mai...

Page 25: ...in tension adjuster pin I fits into guide bar adjuster hole J Tighten sprocket guard nuts D finger tight 8 Adjust saw chain tension as instructed in Adjusting Chain Tension Adjusting Chain Tension Always loosen sprocket guard nuts before turning chain tension adjuster otherwise sprocket guard and tensioner will be damaged 1 Release cylinder cover latches A by inserting screw driver B and lifting l...

Page 26: ...f bar 6 Tighten sprocket guard nuts D with bar nose held up 7 Pull chain around bar by hand Loosen adjustment if you feel tight spots Tighten sprocket guard nuts to 20 23 N m 175 200 in lbf DO NOT over tighten nuts Damage to saw may result 8 Assemble components in reverse order 9 Keep chain properly tensioned at all times Note All chains require frequent adjustments C D E ...

Page 27: ... that can start fires around dry vegetation This unit is equipped with a spark arrester to prevent discharge of hot particles from the engine Metal cutters can also create sparks if the cutter strikes rocks metal or other hard objects Contact local fire authorities for laws or regulations regarding fire prevention requirements Fuel Diesel fuels and alternative fuels such as E 15 15 ethanol E 85 85...

Page 28: ... will void the two stroke engine warranty 2 Stroke engine oil contains petroleum distillates and other additives that may be harmful if swallowed Heated oil can release vapors that can cause flash fire or ignite with explosive force Read and follow the oil manufacturer s instructions and observe all safety warnings and precautions for handling flammable liquids For more detailed safety and first a...

Page 29: ...ve at least 3 m 10 ft from refueling location before starting the engine Gasoline vapor is heavier than air and can travel along the ground to nearby sources of ignition such as electrical motors pilot lights and hot or running engines Vapors ignited by an ignition source can flash back to the fuel container resulting in an explosion fire serious or fatal injuries and extensive property damage Mix...

Page 30: ...e fuel can separate ALWAYS shake fuel container thoroughly before each use Used oil and gasoline and soiled towels are hazardous waste materials Disposal laws vary by locality Units equipped with a momentary STOP Switch automatically return to RUN position Engine can start unintentionally Always remove spark plug lead from spark plug before assembling or performing maintenance procedures otherwise...

Page 31: ...lowing grades SAE No 30 in summer SAE No 10 in winter or when cutting resinous trees When refueling also refill chain oil Winter Operation Air cleaner cover Use winter plug A to prevent carburetor trouble in winter Remove air cleaner cover Remove winter plug A from warm weather position B and install into cold weather position C Note For operation at normal temperature 5 C 41 F return plug to its ...

Page 32: ...rned to original position throttle remains slightly open fast idle latch condition Chain will attempt to move when engine is started with fast idle throttle latch engaged Do not start engine before chain brake is locked 6 Securely hold the chain saw and pull starter handle several times until first starting sound 7 Push choke control knob B all the way IN OPEN choke position 8 Pull starter handle ...

Page 33: ...s locked Severe brake damage will result Starting Warm Engine Make sure bar and chain are free from any obstruction when starting the chain saw 1 Move chain brake lever fully FORWARD to LOCK chain brake before starting 2 Confirm there is fuel and chain oil in tanks 3 Securely hold chainsaw as shown and pull starter handle 4 Choke A may be used if necessary but after first starting sound squeeze th...

Page 34: ...his manual or see your dealer 1 After engine starts allow it to return to idle and warm up before using 2 Move chain brake lever fully REARWARD to UNLOCK chain brake 3 Squeeze throttle trigger A gradually and increase engine speed 4 The chain starts running when the engine reaches clutch engagement speed see technical data page 5 Confirm proper acceleration and lubrication of chain and bar 6 Do no...

Page 35: ...to stop engine Note Return unit to your authorized dealer to check and repair stop switch before starting the engine again Checking Chain Tension Chain tension should be checked frequently during work and corrected as necessary Do not operate with a loose chain Chain Lubrication Test Hold the chain just above a dry surface and open the throttle to half speed for 30 seconds A thin line of thrown oi...

Page 36: ...ed upward with considerable force This is known as kickback Avoid it In all circumstances the operation of the chainsaw is a one man job It is difficult at times to take care for your own safety so don t assume the responsibility for a helper as well After you have learned the basic techniques of using the saw your best aid will be your own good common sense The accepted way to hold the saw is to ...

Page 37: ... and engine crankcase Never use metal tools for cleaning which can scratch the metal paint and allow corrosion to develop Clean sap accumulation from metal parts with cloth and warm water with soap Rinse with clean water and dry metal surfaces Apply a light coating of engine or bar and chain oil to metal parts after they are cleaned Install and properly tension guide bar and chain Run engine for o...

Page 38: ...cking back over the stump Begin the cut on the side to which the tree is to fall Cut a notch about 1 3 of the way into the tree The position of this notch is important since the tree will try to fall into the notch The felling cut is made on the side opposite the notch and at a level about 5 cm 2 in above the bottom of the notch Do not try to cut through to the notch with the felling cut The remai...

Page 39: ...saw for the second cut Insert the saw in the first cut very carefully so as not to cause kickback The final cut is made by drawing the saw forward in the cut to reach the hinge Limbing Limbing a fallen tree is much the same as bucking Never stand on the tree that you are limbing When limbing caution is the word Be careful of the tip touching other limbs Always use both hands Don t cut with the saw...

Page 40: ...ut 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 Chain And Guide Bar Combination The following combinations are recommended for model CS 4010 Use of replaceme...

Page 41: ... you call 1 877 986 7783 or on the web at www shindaiwa usa com Guide Bar Low kickback Replacement guide bars The following guide bars may be considered to have equivalent kickback energy Sprocket nose guide bars of the same length and nose radius same pitch and having the same number of teeth Hard nose guide bars of the same length and nose radius as a sprocket nose bar Saw Chain Low kickback Onl...

Page 42: ...an result Your unit is designed to provide many hours of trouble free service Regular scheduled maintenance will help your unit achieve that goal If you are unsure or are not equipped with the necessary tools we recommend that you take your unit to a Servicing Dealer for maintenance To help you decide whether you want to DO IT YOURSELF or have the Dealer do it each maintenance task has been graded...

Page 43: ...tic Oiler Inspect 1 Oil Filter Inspect 1 Fuel System Inspect 1 1 Guide Bar Sprocket Nose Inspect Clean 1 Saw Chain Inspect Sharpen Replace Tensioning 2 Sprocket Inspect Replace 2 Cooling System Inspect Clean 2 Recoil Starter Rope Inspect Clean 1 Screws Nuts Bolts Inspect Tighten Replace 1 Lifting Hook Inspect2 1 Every Refuel Fuel System Inspect 1 1 Guide Bar Sprocket Nose Inspect 1 3 Months Air Fi...

Page 44: ...FORWARD and LOCK chain brake 4 Release the cylinder cover latches A and remove cylinder cover B 5 Release the tabs C on the air filter and remove the air filter D 6 Lightly brush dust off air filter or clean with compressed air or replace the air filter 7 Install air filter and cylinder cover engage latches Spark Plug Check periodically The standard spark gap is 0 65 mm 0 026 in Fastening torque 1...

Page 45: ...uel Filter A is dirty replace it as follows 3 Do not remove the wire coil clamp to remove the Fuel Filter A Pinch the Fuel Filter with the fingers on one hand and the fuel line with the other hand Pull and twist slightly to separate 4 Install the new Fuel Filter A with the reverse action 5 When the inside of the fuel tank is dirty rinse the tank out with gasoline to clean it Note Federal EPA regul...

Page 46: ...ne hand and the line with the other hand Pull and twist slightly to separate 4 Install the new oil filter A with the reverse action 5 When the inside of the tank gets dirty rinse the tank out with gasoline to clean it Guide Bar 1 Clean before using 2 Clean the groove A of the guide bar with a small screwdriver 3 Clean oil holes B with a wire 4 Invert guide bar periodically 5 Clean the bar mount ar...

Page 47: ...ke sure the spark arrestor screen is in good repair and properly seated in the muffler Certain internal combustion engines operated on forest brush and or grass covered areas in the states of Washington Oregon Idaho California Minnesota New Jersey and Maine are required to be equipped with a spark arrestor This requirement also applies to all U S Forest Service lands In some of these areas the spa...

Page 48: ...e cylinder cover and remove spark plug lead 2 Place piston at top dead center 3 Remove spark arrestor cover and screen 4 Remove muffler screws A and muffler body B and gasket C Check parts for wear or damage and replace if necessary Never use a metal tool to scrape carbon from the exhaust port Do not scratch the cylinder or piston when cleaning the exhaust port Do not allow carbon particles to ent...

Page 49: ...performance will increase and exhaust emissions will stabilize Idle speed can be adjusted as required High Altitude Operation This engine has been factory adjusted to maintain satisfactory starting and durability performance up to 335 m 1 100 ft above sea level ASL 96 0 kPa To maintain proper engine operation above 335 m 1 100 ft ASL the carburetor might need to be adjusted by an authorized servic...

Page 50: ... repeat acceleration Continue adjustment until smooth acceleration results 7 Check idle speed and reset if necessary as described in item 5 If a tachometer is available idle speed should be set to value listed on specifications page When starting idling adjustment speed should be adjusted to prevent the saw chain from moving When you experience trouble with the carburetor contact your dealer Setti...

Page 51: ... For setting saw chain round file 4 0 mm 5 32 in diameter and flat file are used Push file as shown To keep correct position and correct angle use a file holder Hold the file horizontally Place depth gauge tool firmly on guide bar so that depth gauge protrudes Then file top of depth gauge with the flat file until flat with top of the depth gauge tool Sharpen lower edge 30 Keep this angle 90 Depth ...

Page 52: ...e using When chain has been filed on the bar supply sufficient oil to it move 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 in it oil To sharpen other chains follow chain ma...

Page 53: ...No spark Incorrect gap Covered with carbon Fouled with fuel Plug defective Adjust to 0 65mm 0 026 in Clean or replace plug Spark at plug Engine runs but dies or Engine does not accelerate properly Air filter Air filter dirty Normal wear Clean or replace Fuel filter Fuel filter dirty Contaminants or residue in fuel Replace filter or replace fuel Fuel vent Fuel vent plugged Contaminated fuel Clean o...

Page 54: ...e and may cause fire and or explosion Never test for ignition spark by grounding spark plug near cylinder plug hole otherwise serious personal injury may result Engine does not crank N A Internal engine problem See your dealer ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Status Cause Remedy ...

Page 55: ...ss purge bulb 6 7 times to remove remaining fuel from carburetor then drain the tank again Close choke start and run the engine until it stops due to lack of fuel Allow engine to cool Remove the spark plug lead from the spark plug Remove the spark plug Pour 7 cc 0 25 oz of fresh clean two stroke engine oil into the cylinder through the spark plug hole Store in a dry area free from dust Do not stor...

Page 56: ... unleaded Do not use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MTBE Do not use alternative fuels such as E 15 or E 85 Oil ISO L EGD ISO CD 13738 and JASO M345 FD two stroke air cooled engine oil Oiling system automatic oiler Chain oil capacity 230 mL 7 78 US fl oz Starter system Automatic rewind starter Clutch Centrifugal type Sprocket type Spur type 6 tooth 3 8 in pitch Chai...

Page 57: ... on line It s FAST and EASY NOTE your information will never be sold or misused by ECHO Incorporated Registering your purchase enables us to contact you in the unlikely event of a service update or product recall and verifies your ownership for warranty consideration If you do not have access to the Internet you can complete the form below and mail to ECHO Incorporated Product Registration PO Box ...

Page 58: ...PRODUCT REGISTRATION CS 4010 58 X7503380000 7 22 ECHO Incorporated ECHO Incorporated ...

Page 59: ...CS 4010 NOTES X7503380000 59 7 22 ECHO Incorporated NOTES ...

Page 60: ...ECHO INCORPORATED 400 Oakwood Road Lake Zurich IL 60047 www echo usa com C91315001001 C91315999999 ...

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