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Echo CS-310, Operator'S Manual

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Echo CS-310 Operator'S Manual Download Page 9

CS-310

SAFETY

X7503275401

9

© 02/2019 ECHO Inc.

TESTING THE BRAKE

• Start the engine on a solid level 

surface and run at a fast idle until 
warm.

• Hold the saw firmly by the handles 

and accelerate the engine to a fast 
idle.

• Slowly operate the chain brake 

lever while holding the saw firmly on the ground. When the brake lever 
trips, the chain should stop. Immediately release the throttle trigger.

Do not allow the saw to tip forward in order to avoid damage to the 
chain.

If the chain does not stop immediately, return the saw to your 
authorized dealer for repair.

Note: 

• For practice, while cutting a small tree, push the lever forward to lock 

the brake.

• 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's while the chain brake is locked.

The installation of a chain brake may be mandatory by law or as stipulated 
by insurance regulations in your area of operation. You should inquire 
through local government offices, your employer or your local dealer to 
ensure that your chain saw conforms to the required safety standard. 

This chain brake has been designed and tested to comply with international 
safety standards as follows.

Canada: CSA Standard Z62.1, Z62.3 

USA: ANSI Standard B175.1 Safety Requirement for chain saws

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Summary of Contents for CS-310

Page 1: ...haust 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 This product complies with CAN ICES 2 NMB 2 ...

Page 2: ...rsonal Condition and Safety Equipment 12 International Symbols 16 Manual Safety Symbols and Important Information 18 Emission Control Exhaust Evaporative 19 CARB And EPA Emissions Control Information 19 Description 20 Preparation For Use 22 Operation 25 Fuel 25 Chain Lubricant 28 Winter Operation 29 Starting Cold Engine 29 Starting Warm Engine 31 Running 33 Stopping 34 Checking Chain Tension 34 Ch...

Page 3: ... Filter 44 Spark Plug 45 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 48 Exhaust Port Cleaning 48 Setting The Saw Chain 49 Troubleshooting 52 Storage 54 Long Term Storage Over 30 Days 54 Specifications 55 Product Registration 56 Notes 58 ...

Page 4: ...uipment and accessories and may not include all standard equipment Read and understand all provided literature Literature contains specifications and information 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 h...

Page 5: ... com When presenting your unit for Warranty service repairs proof of purchase is required ECHO Consumer Product Support If you require assistance or have questions concerning the application operation or maintenance of this product call the ECHO Consumer Product Support Department at 1 800 673 1558 from 8 00 am to 5 00 pm Central Standard Time Monday through Friday Before calling please know the m...

Page 6: ...arelessness Be more cautious before rest periods and before the end of your shift 2 Personal protective clothing required by your safety organizations government regulations or your employer should be used otherwise snug fitting clothing protective eye wear safety footwear and hand leg and hearing protection should be worn Note Personal protective clothing should meet the requirements of applicabl...

Page 7: ...ssembled Be sure that the saw chain stops moving when the throttle control trigger is released Never adjust the guide bar or saw chain when the engine operating 10 Beware of carbon monoxide poisoning Operate the chain saw in well ventilated areas only 11 Do not attempt a pruning or liming operation in a standing tree unless specifically trained to do so 12 Guard against kickback Kickback is the up...

Page 8: ... one handed operation a Allow your chain saw to cool before refueling and do not smoke while refueling b Do not allow other persons or animals close to running chain saw or close to where a tree is being felled c Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you d When cutting a limb that is under tension be al...

Page 9: ...cutting a small tree push the lever forward to lock the brake 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 s while the chain brake is locked The installation of a chain brake may be mandatory by law or as stipulated by insurance regulations in your ar...

Page 10: ...ake 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 handle and drop the end of the guide bar against the wooden surface 4 The impact should lock the chain brake When checking the operation of the automatic ch...

Page 11: ... loose objects away from all openings ALWAYS stop engine disconnect spark plug and make sure all moving parts have come to a complete stop before removing obstructions clearing debris or servicing unit DO NOT start or operate unit unless all guards and protective covers are properly assembled to unit NEVER reach into any opening while the engine is running Moving parts may not be visible through o...

Page 12: ...roperly and or safety precautions are not followed Proper clothing and safety gear must be worn when operating unit Physical Condition Your judgment and physical dexterity may not be good If you are tired or sick If you are taking medication If you have taken alcohol or drugs Operate unit only if you are physically and mentally well Eye Protection Eye protection that meets ANSI Z87 1 or CE require...

Page 13: ...matter such as pollen Make sure the mask does not impair your vision and replace the mask as needed to prevent air restrictions Proper Clothing Wear snug fitting durable clothing Pants should have long legs shirts should have long sleeves DO NOT WEAR SHORTS DO NOT WEAR TIES SCARVES JEWELRY or clothing with loose or hanging items that could become entangled in moving parts or surrounding growth Kee...

Page 14: ...ieved that a condition called Raynaud s Phenomenon which affects the fingers of certain individuals may be brought about by exposure to vibration and cold Exposure to vibration and cold may cause tingling and burning sensations followed by loss of color and numbness in the fingers The following precautions are strongly recommended because the minimum exposure which might trigger the ailment is unk...

Page 15: ...e following Avoid using your wrist in a bent extended or twisted position Instead try to maintain a straight wrist position Also when grasping use your whole hand not just the thumb and index finger Take periodic breaks to minimize repetition and rest your hands Reduce the speed and force with which you do the repetitive movement Do exercises to strengthen the hand and arm muscles Immediately stop...

Page 16: ...manual Failure to follow instructions could result in serious personal injury Carburetor Adjustment High Speed Mixture Wear Eye Ear and Head Protection Carburetor Adjustment Idle Speed Tip contact may cause the guide bar to move suddenly upward and backward which may cause serious injury Carburetor Adjustment Low Speed Mixture Contact of the guide bar tip with any object should be avoided Emergenc...

Page 17: ...9 ECHO Inc Chain Brake Operation Chain Oiler Adjustment Choke Control COLD START Position Choke Closed Purge Pump Measured maximum kickback value without brake for approved bar and chain combinations Symbol Description Symbol Description ...

Page 18: ...ury or death if not avoided The safety alert symbol accompanied by the word WARNING calls attention to an act or condition which CAN lead to serious personal injury or death if not avoided The safety alert symbol accompanied by the word CAUTION calls attention to an act or condition which may lead to minor or moderate personal injury if not avoided The enclosed message provides information necessa...

Page 19: ...nk fuel line emission control system is EVAP evaporative emissions Evaporative emissions for California models are only applicable to fuel tanks 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 selected by the m...

Page 20: ...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 14 15 16 17 18 19 20 21 13 22 ...

Page 21: ... rpm is fast enough to provide the power needed for cutting 1 Chain Brake Lever Front Hand Guard 2 Spark Arrestor Muffler Or Spark Arrestor Muffler With Catalyst 3 Tip Guard 4 Saw Chain 5 Guide Bar 6 Chain Catcher 7 Chain Tension Adjuster 8 Chain Brake sprocket Guard 9 Rear Hand Guard 10 Purge Pump 11 Choke Control Knob 12 Cylinder Cover 13 Spark Plug 14 Throttle Trigger Lockout 15 Rear Handle For...

Page 22: ...s Tip Guard to Bar Instructions Tools Needed Two 11 mm 7 16 in Wrenches For saws with Tip Guard P N 2894901 and Symmetrical or Asymmetrical Low Kick type Double Guard guide bars 1 Install bolt A in rear hole B of tip guard and through front hole C in guide bar 2 IMPORTANT Dimple D in tip guard must engage recess E in guide bar 3 Securely tighten nut F and bolt A Guide Bar and Saw Chain Installatio...

Page 23: ...the chain brake and mount guide bar on studs C and slide toward sprocket E to make saw chain installation easier Install chain with cutters on top of guide bar facing forward 6 Install the sprocket guard over the guide bar studs Ensure chain tension adjuster pin F fits into the guide bar adjuster hole D Tighten sprocket guard nuts finger tight 7 Adjust saw chain tension as instructed in Adjustment...

Page 24: ... damaged 1 Release the cylinder cover latches and remove the cylinder cover Remove spark plug lead 2 Unlock chain brake and loosen sprocket guard nuts 3 Hold the bar nose up and turn the adjuster screw A clockwise until chain contacts underside of the bar 4 Tighten nuts with the bar nose held up 5 Pull the chain around the bar by hand Loosen the adjustment if you feel tight spots Unlock chain brak...

Page 25: ...ment Diesel or alternative fuels may also cause premature deterioration of fuel lines gaskets carburetors and other engine components Fuel Requirements Gasoline Use 89 Octane R M 2 mid grade or higher gasoline known to be good quality Gasoline may contain up to 10 Ethanol grain alcohol or 15 MTBE methyl tertiary butyl ether Gasoline containing methanol wood alcohol is NOT approved Use of ECHO bran...

Page 26: ...ID repeated or prolonged skin contact AVOID inhaling oil mists or vapors ECHO branded 2 stroke oils may be mixed at 50 1 ratio for application in all ECHO engines sold in the past regardless of ratio specified in those manuals Handling Fuel Fuel is VERY flammable Use extreme care when mixing storing or handling or serious personal injury may result Use an approved fuel container Mark fuel containe...

Page 27: ...proper amount of 2 stroke oil to gasoline 3 Close container and shake to mix oil with gasoline 4 Add remaining gasoline close fuel container and remix Spilled fuel is a leading cause of hydrocarbon emissions Some states may require the use of automatic fuel shut off containers to reduce fuel spillage Empty the fuel tank prior to storing the unit Return unused fuel to an approved fuel storage conta...

Page 28: ... and assures a longer service life Use bar and chain oil of high quality for this purpose Do not use used or reclaimed oil to avoid various oiler problems Use high quality bar and chain oil Use bar and chain oil of the following grades SAE No 30 in summer SAE No 10 in winter or when cutting resinous trees When refueling also refill chain oil Moving parts can amputate fingers or cause severe injuri...

Page 29: ...ticles 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 Winter Operation Air cleaner cover Use the winter plug A to prevent carburetor trouble in winter Remove air cleaner cover Remove plug from warm weather position B and install into cold weath...

Page 30: ... to 4 times or until fuel is visible in purge pump 6 Pull choke control knob all the way OUT CLOSED choke position After choke control knob is pulled and then knob is returned to original position throttle remains slightly open fast idle latch condition The chain will attempt to move when engine is started with fast idle throttle latch engaged Do not start engine before chain brake is locked 7 Sec...

Page 31: ...oes not start after 5 pulls repeat instructions After starting the engine immediately squeeze and then release throttle trigger to release fast idle throttle latch otherwise severe brake damage may occur Never use fast idle throttle latch for cutting Use the fast idle throttle latch only in starting Note Do not increase engine speed while chain brake is locked Severe brake damage will result Start...

Page 32: ...tch A UP to RUN position 4 Securely hold the chain saw as shown and pull starter handle 5 Choke may be used if necessary but after first starting sound squeeze throttle trigger to release choke and return engine to idle Note If engine does not start after 5 pulls use cold start procedure Note Do not increase engine speed while chain brake is locked Severe brake damage will result Chain brake A ...

Page 33: ... 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 B 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 s...

Page 34: ...gine Note Return the 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 oil shou...

Page 35: ...ward with considerable force This is known as kickback Avoid it In all circumstances the operation of the chain saw 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 stan...

Page 36: ...r and engine crankcase Never use metal tools for cleaning which may 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 ...

Page 37: ...g 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 remaining...

Page 38: ...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 overhead or aligned vertically with your body If the saw should kickback you may not have enough control to prevent possible injury Bucking Bucking is the sa...

Page 39: ...ain And Guide Bar Combination The following combinations are recommended for model CS 310 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 ANSI B175 1 or CSA Z62 1 3 Standard when tested on the representative sample of cha...

Page 40: ...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 Do not use replacement saw chain unless it has been designated as meeting ANSI B175 1 or CSA Z62 1 3 kickback performance requirements when tested on the representative sample of chain saws below 3 8 c i d specified ...

Page 41: ...en otherwise serious personal injury may 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...

Page 42: ...ect Adjust 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 Every Refuel Fuel System Inspect 1 1 Guide Bar Sprocket Nose Inspect 1 3 Months Air Filter Replace 1 Oil Filter Inspe...

Page 43: ...ance up to 1 100 feet above sea level ASL 96 0 kPa To maintain proper engine operation above 1 100 feet ASL the carburetor may need to be adjusted by an authorized service dealer If the engine is adjusted for operation above 1 100 feet ASL the carburetor must be re adjusted when operating the engine below 1 100 feet ASL otherwise severe engine damage may result 1 Before adjusting carburetor clean ...

Page 44: ...cceleration 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 technical data 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 Air Filter 1 Check before every use 2 CLOSE choke 3 Press ha...

Page 45: ...pe fuel grommet or fuel tank cap In case of fuel leakage there is a danger of fire Stop using the machine immediately and request your dealer to inspect or replace Fuel Filter Check periodically Do not allow dust to enter fuel tank A clogged filter A will cause difficulty in starting engine or abnormalities in engine performance 1 Pull filter out through gas port and inspect filter 2 When the filt...

Page 46: ...not allow dust to enter into oil tank A clogged oil filter B will affect the normal lubricating system 1 Pull filter out through oil port and inspect filter 2 If the filter is dirty wash it in gasoline or replace it 3 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 Cl...

Page 47: ...d prevents hot glowing particles of carbon from leaving the muffler Make 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 ...

Page 48: ... is cracked or has holes burned through 5 Assemble components in reverse order Note When cleaning carbon deposit be careful not to damage the catalytic element inside muffler Exhaust Port Cleaning Level 2 1 Remove cylinder cover and remove spark plug lead 2 Place piston at top dead center 3 Remove muffler Check parts for wear or damage and replace if necessary Never use a metal tool to scrape carb...

Page 49: ... guide bar and chain Adjust chain tension 10 Start engine and check for exhaust leaks between muffler and cylinder head Stop engine if leak is found and correct problem before operating chain saw Setting The Saw Chain Important points for proper maintenance of saw chain Keep the cutters sharp at all times Keep the left and the right cutters properly aligned Note that blunt or irregular cutters wil...

Page 50: ...ile are used Push file as shown To keep correct position and correct angle use a file holder Hold the file horizontally Place the 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 One fifth of the file diameter remains above cutter edge Be sure to round off the front edge of the depth gauge...

Page 51: ...ient 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 manufacturer s instructions 55 Side plate angle 30 Top plate...

Page 52: ...ngine does not start Fuel at carburetor No fuel at carburetor Fuel strainer or fuel line obstructed Clean or replace See your dealer Fuel at cylinder No fuel at cylinder Carburetor See your dealer Muffler wet with fuel Fuel mixture too rich OPEN choke Clean or replace air filter Adjust carburetor See your dealer Spark at end of plug wire No spark Stop switch OFF Electrical problem Interlock switch...

Page 53: ...uel vent plugged Contaminated fuel Clean or replace Spark plug Plug dirty or worn Normal wear Clean and adjust or replace Carburetor Improper adjustment Vibration Adjust Cooling system Cooling system dirty or plugged Extended operation in dirty or dusty locations Clean Spark arrestor screen Spark arrestor screen plugged Normal wear Replace Engine does not crank N A Internal engine problem See your...

Page 54: ...on 3 Remove accumulation of grease oil dirt and debris from exterior of unit 4 Perform all periodic lubrication and services that are required 5 Tighten all the screws and nuts 6 Drain fuel tank completely Press 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 7 Allow engine to cool Remov...

Page 55: ... 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 260 mL 8 8 US fl oz Starter system Automatic rewind starter Clutch Centrifugal type Sprocket type Spur type 6 tooth 3 8 in pitch Chain brake Autom...

Page 56: ...oduct on line It s FAST and EASY NOTE your information will never be sold or misused by ECHO Inc 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 Inc Product Registration PO Box 1139 Lake Zur...

Page 57: ...CS 310 PRODUCT REGISTRATION X7503275401 57 02 2019 ECHO Inc ...

Page 58: ...NOTES CS 310 58 X7503275401 02 2019 ECHO Inc NOTES ...

Page 59: ...CS 310 NOTES X7503275401 59 02 2019 ECHO Inc ...

Page 60: ...ECHO INCORPORATED 400 Oakwood Road Lake Zurich IL 60047 www echo usa com C67815001001 C67815999999 C67915001001 C67915999999 ...

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