Operator’s Manual CS-3510 CHAIN SAW The engine exhaust 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.
TABLE OF CONTENTS CS-3510 TABLE OF CONTENTS Table of Contents ........................................................................................ 2 Introduction ................................................................................................. 4 Servicing Information .................................................................................. 4 Parts/Serial Number............................................................................. 4 Service ..............................
CS-3510 TABLE OF CONTENTS Maintenance ............................................................................................. Skill Levels ........................................................................................ Maintenance Intervals ....................................................................... Carburetor Adjustment....................................................................... Air Filter ..............................................................................
INTRODUCTION CS-3510 INTRODUCTION Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to change without notice. Illustrations may include optional equipment 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.
CS-3510 PACKING LIST Service Service of this product during the warranty period must be performed by an Authorized ECHO Service Dealer. For the name and address of the Authorized ECHO Service Dealer nearest you, ask your retailer or call: 1-800-432-ECHO (3246). Dealer information is also available on our Web Site www.echo-usa.com. When presenting your unit for Warranty service/ repairs, proof of purchase is required.
SAFETY CS-3510 SAFETY Rules For Safe Operation Kickback Safety Precautions for Chain Saw 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 cause a lightning fast reverse REACTION, kicking the guide bar up and back towards the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
CS-3510 SAFETY 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 chain saw 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.
SAFETY CS-3510 • 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.
CS-3510 ANSI Standard B175.1 and CSA Z62.1.3 stipulate that the brake shall stop the chain 0.12 seconds at an engine speed of 13,500 r/min. It is the responsibility of the owner/ operator to ensure that the brake is serviced, adjusted and tested strictly in accordance with the instructions as detailed here in order to ensure that the brake performance is maintained in compliance with the Standards B175.1 and CSA Z62.1.3 SAFETY 35 cm (14 in.
SAFETY CS-3510 Other Safety Precautions 1. Do not operate a chain saw with one hand! Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation. A chain saw is intended for twohanded use. 2. Do not operate a chain saw when you are fatigued. 3. Use safety footwear, snug-fitting clothing and protective gloves. Wear eye, hearing, and head protection devices. 4. Use caution when handling fuel.
CS-3510 SAFETY 18. When transporting your chain saw, use the appropriate guide bar scabbard. 19. A spark arrestor muffler approved to SAE Standard J335 is standard on this chain saw to reduce the possibility of forest fires. Do not operate the chain saw with a loose or defective muffler. Do not remove the spark arrestor screen. 20. When using a chainsaw a fire extinguisher should be available. 21. When felling, keep at least 2 tree lengths between yourself and your fellow workers. 22.
SAFETY CS-3510 Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and 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.
CS-3510 SAFETY 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. Users of this product risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. Proper clothing and safety gear must be worn when operating unit.
SAFETY CS-3510 Hearing/Ear Protection ECHO recommends wearing personal protective equipment whenever unit is used. Breathing Protection Operators who are sensitive to dust or other common airborne allergens may need to wear a dust mask to prevent inhaling these materials while operating unit. Dust masks can provide protection against dust, plant debris, and other plant matter such as pollen. Make sure the mask does not impair your vision, and replace the mask as needed to prevent air restrictions.
CS-3510 SAFETY Extended Operation / Extreme Conditions Prolonged exposure to cold and/or vibration can result in injury. Read and follow all safety and operation instructions to minimize risk of injury. Failure to follow instructions can result in painful wrist/hand/arm injuries. It is believed that a condition called Raynaud’s Phenomenon, which affects the fingers of certain individuals, may be brought about by exposure to vibration and cold.
SAFETY CS-3510 To reduce the risk of RSI/CTS, do the 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.
CS-3510 SAFETY International Symbols Symbol Description WARNING! Read and follow all safety precautions in the instruction manual. Failure to follow instructions could result in serious personal injury.
SAFETY Symbol CS-3510 Description Symbol Description Choke Control “COLD START” Position (Choke Closed) Purge Pump Choke Control “RUN” Position (Choke Open) STOP De-Compression Device STOP STOP / Momentary STOP Switch Note: Not all symbols will appear on your unit. Manual Safety Symbols and Important Information Throughout this manual and on the product itself, you will find safety alerts and helpful, informational messages preceded by symbols or key words.
CS-3510 SAFETY The safety alert symbol accompanied by the word “DANGER” calls attention to an act or condition which WILL lead to serious personal injury 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.
EMISSION CONTROL CS-3510 EMISSION CONTROL (EXHAUST & EVAPORATIVE) CARB And EPA Emissions Control Information The emission control system for the engine is EM (engine modification) and, if the second to last character of the Engine Family on the Emission Control Information label (sample below) is “B”, “C”, “K”, or “T”, the emission control system is EM and TWC (3way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions).
CS-3510 DESCRIPTION DESCRIPTION Locate the safety decal(s) on 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. 4 3 2 5 6 7 1 10 8 9 11 12 13 14 21 16A0CD3757 91PX57CQ Manual shows other combinations. Manuel montre d' autres combinaisons.
DESCRIPTION CS-3510 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 Hand 15. Throttle Trigger 16. Momentary STOP Switch 17. Cylinder Cover Latch 18. Fuel Tank Cap 19.
CS-3510 DESCRIPTION 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 spark plug before assembling or performing maintenance procedures.
DESCRIPTION CS-3510 Guide Bar and Saw Chain Installation/Removal 1. 2. Release the cylinder cover latches (A) by inserting the screw driver end of the supplied tool (B) and lifting the latch tip as shown. Remove the cylinder cover (C). B Remove spark plug lead. A C 3. Remove sprocket guard nuts (D) and remove sprocket guard (E). 4. Remove guide bar (F) and saw chain if necessary. Unlock Chain Brake C F Note: See “Maintenance and Care” section for guide bar/ saw chain maintenance procedures. 5.
CS-3510 8. DESCRIPTION Adjust saw chain tension, as instructed in “Adjustment, Chain Tension”. Adjusting Chain Tension Always loosen sprocket guard nuts before turning the chain tension adjuster, otherwise the sprocket guard and tensioner will be damaged. 1. Release the cylinder cover latches (A) by inserting the screw driver end of the supplied tool (B) and lifting the latch tip as shown. Remove the cylinder cover (C). 2. Remove spark plug lead. 3. Unlock chain brake. 4.
OPERATION 5. Hold the bar nose up, and turn the adjuster screw (E) clockwise until chain contacts underside of the bar. 6. Tighten sprocket guard nuts (D) with the bar nose held up. 7. Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots. CS-3510 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.
CS-3510 OPERATION Fuel Requirements Gasoline - Use fresh (purchased within the last 30 days from the pump) 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 branded fuel is recommended to extend engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines.
OPERATION ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ CS-3510 Use an approved fuel container. Mark fuel containers as containing 2-stroke mixture fuel. DO NOT smoke near fuel. DO NOT allow flames or sparks near fuel. Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize. NEVER refuel a unit when the engine is HOT or RUNNING! DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground. DO NOT overfill fuel tank. Wipe up spills immediately.
CS-3510 OPERATION Spilled fuel is a leading cause of hydrocarbon emissions. Some locations may require the use of automatic fuel shut-off containers to reduce fuel spillage. 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, unoccupied building, away from sparks and flames. • Empty the fuel tank prior to storing the unit.
OPERATION • Use bar and chain oil of high quality for this purpose. CS-3510 Fuel tank cap • 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. Oil tank cap • When refueling, also refill chain oil. Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings.
CS-3510 OPERATION Winter Operation Air cleaner cover - Use the winter plug (A) to prevent carburetor trouble in winter. A • Remove air cleaner cover. Remove winter plug (A) from warm weather position (B), and install into cold weather position (C). B Note: For operation at normal temperature (5°C [41°F]) return the plug to its original position. To prevent over heating of the engine. C Starting Cold Engine Make sure the bar and chain are free from any obstruction when starting the chain saw. 1.
OPERATION ◆ ◆ ◆ 6. CS-3510 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. 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 8. Pull starter handle to start the engine.
CS-3510 1. Move chain brake lever fully FORWARD to LOCK chain brake before starting. 2. Confirm there is fuel and chain oil in the tanks. 3. Securely hold the chain saw as shown and pull starter handle. 4. Choke (A) may be used if necessary, but after first starting sound, squeeze throttle trigger to release choke to OPEN and return engine to idle. OPERATION Chain Brake Locked Note: If engine does not start after 5 pulls, use cold start procedure.
OPERATION CS-3510 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.
CS-3510 OPERATION 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 should be seen on the dry surface.
OPERATION ◆ CS-3510 protect against objectionable or uncomfortable loud noises. Do not let the tip of the bar touch anything while the engine is running. At cutting speed the chain is moving at a high rate of speed. Should the tip Kickback contact a limb or log while the chain is moving, the tip will be pushed upward with considerable force. This is known as kickback. Avoid it! In all circumstances the operation of the chain saw is a one-man job.
CS-3510 OPERATION Sap from palm trees may corrode metal parts unless proper saw maintenance is performed. Make sure to clean metal parts from palm sap immediately after use. • Remove sprocket cover. Clean wood chips and sawdust from cover 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.
OPERATION Before cutting, clear the area around the tree. You will need good footing while working and you should be able to work the saw without hitting any obstacles. Next, select a path of retreat. When the tree begins to fall you should retreat away from the direction of fall at a 45-degree angle and at least 3 m (10 feet) from the trunk to avoid the trunk kicking back over the stump.
CS-3510 OPERATION 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 sawing of a log or fallen tree into smaller pieces.
OPERATION CS-3510 Keep in mind that the wood is heavy and that it will bend and pinch the saw if improperly supported. The trunk will weaken at the point where you make the cut unless the 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. When the bar nose hits another tree, etc.
CS-3510 MAINTENANCE 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) 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 chain saws below 3.8 C.
MAINTENANCE CS-3510 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. If the task is not listed, see your Dealer for repairs.
CS-3510 Component / System MAINTENANCE Maintenance Procedure Req’d Skill Level 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 Fuel System Inspect 1 1 Guide Bar & Sprocket Nose Inspect 1 Air Filter Replace * 1 Oil Filter Inspect / Replace * 1
MAINTENANCE CS-3510 Carburetor Adjustment Every unit is run at the factory and the carburetor is set in compliance with Emission Regulations. In addition, the carburetor is equipped with “H” (High Speed) and (“L” (Low Speed) needle adjustment limiters that prevent settings outside acceptable limits. Engine Break-In New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made.
CS-3510 MAINTENANCE 6. Accelerate to full throttle for 2 - 3 seconds to clear any excess fuel in the engine, then return to idle. Accelerate engine to full throttle to check for smooth transition from idle to high speed. If engine hesitates turn “L” needle CCW 1/8 turn and repeat acceleration. Continue adjustment until smooth acceleration results. 7. Check idle speed and reset if necessary as described in item 5.
MAINTENANCE CS-3510 Check Fuel System • Check before every use. • After refueling, make sure fuel does not leak from around fuel pipe, 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.
CS-3510 MAINTENANCE Oil Filter • Check periodically. • Do not allow dust to enter into oil tank. • A clogged oil filter (A) will affect the normal lubricating system. 1. Remove the oil cap (B) and pull oil filter out through oil port nspect oil filter (A). A B 2. If the oil filter (A) is dirty, wash it in gasoline or replace it as follows: 3. Do not remove the wire coil clamp to remove the oil filter (A). Pinch the oil filter with the fingers on one hand and the line with the other hand.
MAINTENANCE CS-3510 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. Cooling System Cleaning • Check periodically. Cylinder fins • Clogged fins will result in poor engine cooling. 1. Remove cylinder cover. 2. Use compressed air or wooden tool to remove dirt and dust from between fins to let cooling air pass easily.
CS-3510 MAINTENANCE 1. Remove air cleaner cover and remove spark plug lead. 2. Remove spark arrestor cover screw (A), spark arrestor cover(B) and screen (C) from muffler (D) body. 3. Clean carbon deposits from muffler components. 4. Replace screen if it is cracked, or has holes burned through. 5. Assemble components in reverse order. D C B A Note: When cleaning carbon deposit, be careful not to damage the catalytic element inside muffler. Exhaust Port Cleaning Level 2. Parts Required: 1.
MAINTENANCE CS-3510 8. Start engine, and allow unit to warm up at idle for several minutes. 9. Stop engine, and re-tighten mounting bolts (or nuts) to 7 - 9 N•m (60-80 in•lbf). 10. Install guide bar and chain. Adjust chain tension. 11. 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.
CS-3510 MAINTENANCE Setting Saw Chain • For setting saw chain, round file (4.0 mm [5/32 in.] diam.) and flat file are used. • Push file as shown. 30° Keep this angle • To keep correct position and correct angle, use a file holder. • Hold the file horizontally. 90° • 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. 1/5 • One fifth of the file diameter remains above cutter edge.
MAINTENANCE CS-3510 • When setting of the chain is finished, soak it in oil and wash away filings completely before using. 55° 30° Top plate filing angle • 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. Side plate angle 0.64 mm (0.025 in.) • If the chain saw is operated with filings clogged in the groove, the saw chain and the guide bar will be damaged prematurely.
CS-3510 TROUBLESHOOTING TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Engine starts hard Fuel at carburetor Status Cause Remedy No fuel at carburetor Fuel strainer or fuel line obstructed Clean or replace No fuel at cylinder Carburetor See your dealer or Engine does not start Engine starts hard OPEN choke Fuel at cylinder Muffler wet with fuel Fuel mixture too rich or Engine does not start See your dealer Clean or replace air filter Adjust carburetor See your deale
TROUBLESHOOTING CS-3510 ENGINE PROBLEM TROUBLESHOOTING CHART Problem Engine does not crank Check Status N/A Cause Remedy Internal engine problem See your dealer Fuel vapors are extremely flammable 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.
CS-3510 STORAGE STORAGE Storage After Use Momentary STOP Switch automatically returns to RUN position. Engine can start unintentionally. Always remove spark plug lead from spark plug before assembling or performing maintenance procedures. Serious personal injury can result. • Inspect and adjust every part of the chain saw. • Completely clean every part and repair if necessary. • Apply thin coating of oil on metal parts to prevent rust. • Remove chain and guide bar. • Drain fuel tank completely.
SPECIFICATIONS CS-3510 SPECIFICATIONS Model Length CS-3510 386 mm (15.2 in.) Width 233 mm (9.2 in.) Height 271 mm (10.7 in.) Dry weight 3.7 kg (8.2 lb.) Without chain and guide bar Engine Air-cooled two-stroke single cylinder Displacement 34.4 mL (2.1 cu. in.) Bore 40.0 mm (1.570 in.) Stroke 27.4 mm (1.08 in.) Compressions ratio 7.4:1 Carburetor Diaphragm type Spark plug NGK BPMR8Y (Gap 0.65 mm [0.026 in.]) Fuel tank capacity 280 mL (9.47 US. fl. oz.
CS-3510 NOTES NOTES X7503360201 © 8/20 ECHO Incorporated 57
PRODUCT REGISTRATION CS-3510 PRODUCT REGISTRATION Thank you for choosing ECHO Power Equipment Please go to http://www.echo-usa.com/Warranty/Register-Your-ECHO to register your new product 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.
CS-3510 X7503360201 © 8/20 ECHO Incorporated PRODUCT REGISTRATION 59
C82015001001 - C82015999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.
