Operator’s Manual CS-2511P 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-2511P TABLE OF CONTENTS Introduction................................................................................................................. 3 Servicing Information.................................................................................................. 3 Parts/Serial Number........................................................................................... 3 Service ..............................................................................................
CS-2511P INTRODUCTION 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.
PACKING LIST CS-2511P 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.
CS-2511P SAFETY 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.
SAFETY 1. CS-2511P With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents. Kickback Danger Zone 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.
CS-2511P SAFETY Testing The Brake • Start the engine on a solid level surface and run at a fast idle until warm. Locked • 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.
SAFETY 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 CS-2511P 35 cm (14 in.
CS-2511P SAFETY 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.
SAFETY CS-2511P 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.
CS-2511P SAFETY 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.
SAFETY CS-2511P Personal Condition and Safety 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. 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.
CS-2511P SAFETY 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/Ear Protection ECHO recommends wearing personal protective equipment whenever unit is used.
SAFETY CS-2511P 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 manufacturer before operating this machine. In the absence of such information, ECHO does not recommend the use of this machine by anyone who has a pacemaker.
CS-2511P SAFETY 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 (RSI). An extreme RSI condition is Carpal Tunnel Syndrome (CTS), which could occur when your wrist swells and squeezes a vital nerve that runs through the area.
SAFETY CS-2511P Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. 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.
CS-2511P Symbol SAFETY Description Symbol Description Chain Oiler Adjustment Chain Brake Operation 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.
SAFETY CS-2511P 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. The following is an explanation of those symbols and key words and what they mean to you. 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.
CS-2511P EMISSION CONTROL 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 (3-way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions).
DESCRIPTION CS-2511P 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.
CS-2511P 1. Rear Handle - For Right Hand 2. Choke Control Knob 3. Front Hand Guard / Chain Brake Lever 4. Spiked Bumper 5. Guide Bar 6. Saw Chain 7. Chain Catcher 8. Chain Brake / Sprocket Guard Nut 9. Chain Tension Adjuster 10. Chain Brake / Sprocket Guard Cover 11. Muffler Cover 12. Rear Hand Guard 13. Front Support Handle - For Left Hand 14. Air Cleaner Cover Latch 15. Air Cleaner Cover 16. STOP Switch 17. Throttle Trigger Lockout 18. Throttle Trigger 19.
DESCRIPTION CS-2511P Preparation For Use Make sure engine is stopped before performing any of the procedures that follow. Saw chain is sharp! Always wear gloves when handling assembly. Failure to follow instructions can cause serious personal injury. Note: The machine may be delivered with guide bar, and saw chain not installed. Install guide bar, saw chain, and optional Kick GuardTM as follows. Instructions to Install Optional Kick GuardTM to Bar Tools Needed: Two 11 mm (7/16 in.) Wrenches. 1.
CS-2511P 4. DESCRIPTION Remove guide bar (D) and saw chain (E) as necessary. Note: See “Maintenance” section for Guide Bar, Sprocket, and Setting the Saw Chain for maintenance procedures. G B F C 5. E D Mount guide bar (D) on stud (F) and slide toward clutch drum sprocket (G) to make saw chain (E) installation easier. Install saw chain around clutch drum sprocket and guide bar as shown, with saw chain cutters on top of guide bar facing forward.
DESCRIPTION 7. 8. CS-2511P Align brake connector (K) on sprocket guard cover (C) to groove on the side of the front hand guard (A). Install and tighten sprocket guard nut (B), finger tight. A K Adjust saw chain tension, as instructed in “Adjust Chain Tension”. Adjust Chain Tension Make sure engine is stopped before performing any of the procedures that follow. Saw chain is sharp! Always wear gloves when handling assembly. Failure to follow instructions can cause serious personal injury.
CS-2511P 5. DESCRIPTION A: Correct Chain Tension B: Incorrect Chain Tension A B 6. Tighten sprocket guard nut (B) with the bar nose held up. 7. Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots. Tighten guide bar nut to 15-20 N•m (153 to 204 kgf•cm, 133-177 in•lbf). DO NOT over-tighten nut. Damage to saw can result. 8. Connect spark plug, assemble components in reverse order. 9. Keep chain properly tensioned at all times.
OPERATION CS-2511P OPERATION Fuel Diesel fuels and alternative fuels, such as E-15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of diesel or alternative fuels can cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement.
CS-2511P ◆ ◆ ◆ ◆ OPERATION If swallowed, do not induce vomiting. CALL PHYSICIAN OR A POISON CONTROL CENTER IMMEDIATELY. WEAR SAFETY GLASSES when mixing or handling. AVOID 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.
OPERATION CS-2511P Mixing Instructions Stored fuel ages. Do not mix more fuel than you expect to use in 30 days, 90 days when a fuel stabilizer is added. 1. Fill an approved fuel container with half of the required amount of gasoline. 2. Add the 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. Fuel to Oil Mix – 50:1 Ratio US Metric Gas Oil Gas Oil gal. fl.oz. L cc 1 2.
CS-2511P OPERATION Make sure STOP switch is in OFF position. Engine can start unintentionally. Always remove spark plug lead from spark plug before assembling or performing maintenance procedures, otherwise, serious personal injury can result. Servicing Fuel and Oil When the fuel tank cap or oil tank cap is difficult to remove, remove the spark plug lead, pull the starter handle slowly, and use the starter handle to assist in removal of the cap.
OPERATION CS-2511P Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is directed away from your face and body. Operation of this equipment may create sparks that can start fires around dry vegetation. This unit is equipped with a spark arrestor to prevent discharge of hot particles from the engine.
CS-2511P OPERATION Start Cold Engine ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ 1. Do not start engine unless chain brake is LOCKED (forward position). After choke control knob is turned and the knob returned to original position, throttle will remain slightly open (latch condition). If engine is started in this latch condition, chain starts to turn. Make sure bar and chain are free from any obstruction when chain saw is started. Failure to follow instructions can cause serious injury.
OPERATION 4. Move STOP switch (B) to RUN position. 5. Press purge bulb (C) 8 times or until fuel is visible in the purge bulb. CS-2511P C B 6. Turn choke control knob (D) counterclockwise to (CLOSED choke position). D ◆ ◆ ◆ 7. After choke control knob is turned and the knob returned to original position, throttle will remain slightly open (latch condition). The chain will attempt to move when engine is started with fast idle throttle latch engaged.
CS-2511P 8. Turn choke control knob (D) clockwise to (OPEN choke position). 9. Pull starter handle (E) to start the engine. OPERATION D ◆ ◆ ◆ ◆ 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. Do not increase engine speed while chain brake (A) is locked. Severe brake damage will result. 10.
OPERATION 1. Move chain brake lever (A) fully FORWARD to LOCK chain brake before starting. 2. Confirm there is fuel and chain oil in the tanks. 3. Move STOP switch (B) to RUN position. CS-2511P A B 4. Securely hold the chain saw as shown and pull starter handle (E). E 5. Choke can be used if necessary, but after first starting sound, squeeze throttle trigger lock (G) and throttle trigger (F) to release choke and return engine to idle.
CS-2511P OPERATION Running Make sure bar and chain are free from any obstruction when chain saw is started. Do not increase engine speed while chain brake (A) is locked. Severe brake damage will result. The saw chain should not move at idle, otherwise serious injury can occur. The saw chain should not move at idle, otherwise serious injury can result. Note: If saw chain moves adjust carburetor according to “Carburetor Adjustment” instructions in this manual, or see your dealer. 1.
OPERATION 4. CS-2511P The chain starts running when the engine reaches clutch engagement speed (see “Specifications” page). G 5. Confirm proper acceleration and lubrication of chain and bar. 6. Do not run the engine at high speed unnecessarily. 7. Make sure saw chain stops moving when throttle trigger lock (G) and throttle trigger (F) are released. F Stopping 1. Release throttle trigger lock (G) and throttle trigger (F) and allow engine to idle. 2. Move STOP switch (B) DOWN to “STOP” position.
CS-2511P OPERATION Cutting Instructions General ◆ ◆ ◆ This chain saw is designed for cutting wood. Do not cut metal, plastic or any non-wood material. Wear suitable hearing protection such as earmuffs or earplugs to 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.
OPERATION CS-2511P 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 more difficult. Sap from palm trees may corrode metal parts unless proper saw maintenance is performed.
CS-2511P OPERATION Felling The Tree A falling tree can seriously damage anything it may hit - a car, a house, a fence, a power line, or another tree. There are ways to make a tree fall where you want it, so first decide where that is! 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.
OPERATION CS-2511P To fell big trees with a diameter exceeding twice the bar length, start 3 the notching cuts from one side and draw the saw through to the other 1 side of the notch. Start the back cut on one side of the tree, pivoting the saw through to form the desired 2 hinge on that side. Then remove the 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.
CS-2511P OPERATION 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. Uphill Position • Keep both hands on the handles at all times. • Support logs if possible. • When cutting on a slope or hillside, always stand uphill. Finish cut First cut Support Keep in mind that the wood is heavy and that it will bend and pinch the saw if improperly supported.
OPERATION CS-2511P Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above. Kick GuardTM (Optional) To purchase an optional Kick GuardTM contact your ECHO dealer. For the name of the ECHO dealer nearest you, Call: 1-800-432-ECHO (3246) or on the web at www.echo-usa.com Guide Bar (Low-kickback) Replacement guide bars. The following guide bars may be considered to have equivalent kickback energy.
CS-2511P MAINTENANCE MAINTENANCE 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. Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges and hot surfaces.
MAINTENANCE CS-2511P Maintenance Intervals 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 serious personal injury can result.
CS-2511P COMPONENT / SYSTEM MAINTENANCE MAINTENANCE PROCEDURE REQ’D SKILL LEVEL Yearly Fuel Filter Inspect / Replace * 1 Fuel Cap Gasket Replace * 1 IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the frequency of required maintenance. MAINTENANCE PROCEDURE NOTES: * Replacement is recommended based on the finding of damage or wear during inspection.
MAINTENANCE CS-2511P 4. Stop engine. Turn “H” High Speed needle counterclockwise (CCW) to stop. Turn “L” Low Speed needle midway between full clockwise (CW) stop and CCW stop. 5. Idle Speed Adjustment: • Start engine, turn Idle Speed Adjustment Screw “T” CW until the saw chain begins to move, then turn screw out CCW until the saw chain stops moving. Turn screw out, CCW, an additional 1/4 turn.
CS-2511P 3. MAINTENANCE Undo the cleaner cover latch (A), lift the tip of the air cleaner cover (B), then slide it sideways and remove it. C 4. Remove the air filter (C) by turning it counter-clockwise by hand. 5. Lightly brush dust off air filter, or clean with compressed air, or replace the air filter. 6. Align the air filter mark with the mark on the body then turn the air filter (C) to the right and attach it. 7.
MAINTENANCE CS-2511P Fuel Filter Fuel is extremely flammable. Use extreme caution when handling fuel. Failure to follow instructions can cause serious injury. • 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. A Pull filter out through gas port, and inspect filter. Do not damage fuel line while removing fuel filter from tank. 2. When the filter is dirty, replace it as follows: 3.
CS-2511P MAINTENANCE Automatic Oiler • The discharge volume of the automatic oiler is adjusted to approximately 6 mL/min at 7000 r/min, prior to shipment from factory. A • Always check oil discharge when in use. • Turn adjusting screw (A) counterclockwise to increase oil volume, clockwise to decrease oil volume. • Do not turn the adjusting screw beyond the maximum or minimum limit of volume adjustment. Oil Filter • Check periodically. • Do not allow dust to enter into oil tank.
MAINTENANCE CS-2511P Guide Bar 1. Clean before using. 2. Clean the groove of the guide bar (A) with a small screwdriver. 3. Clean oil holes (B) with a wire. 4. Invert guide bar periodically. 5. Clean the guide bar mount area before installing the guide bar. B A Sprocket • A damaged sprocket will cause premature damage or wear of saw chain. Worn: 0.5 mm (0.020 in.) • When the sprocket has worn 0.5 mm (0.020 in.) or more, replace it. • Check sprocket when you install new chain.
CS-2511P 3. Use compressed air or wooden tool to remove dirt and dust from between fins to let cooling air pass easily. 4. Clean the periphery of the ignition coil and the flywheel magneto. 5. Assemble the components in reverse order. MAINTENANCE Spark Arrestor Muffler • The spark arrestor muffler controls the exhaust noise and 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.
MAINTENANCE CS-2511P Spark Arrestor Screen Carbon deposits in muffler will cause drop in engine output and overheating. Spark arrestor screen must be checked periodically. 1. Remove air cleaner cover and remove spark plug lead. 2. Remove two bolts and muffler cover. 3. Remove the spark arrester screen from the muffler body. 4. Clean carbon deposits from muffler components. 5. Replace screen if it is cracked, or has holes burned through. 6. Assemble components in reverse order.
CS-2511P MAINTENANCE • Drive link serves to remove sawdust from the groove of the guide bar. Keep the lower edge of the drive link sharp where indicated. Sharpen lower edge 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° • To keep correct position and correct angle, use a file holder. Keep this angle • Hold the file horizontally. 90° • Place the depth gauge tool firmly on guide bar so that depth gauge protrudes.
MAINTENANCE • Be sure to round off the front edge of the depth gauge. CS-2511P Depth gauge tool • Properly filed cutters are shown in illustration. • 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.
CS-2511P TROUBLESHOOTING To sharpen other chains, follow chain manufacturer’s instructions.
STORAGE CS-2511P ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Status Engine runs, but dies Spark plug Plug dirty or worn Normal wear Clean and adjust or replace Carburetor Improper adjustment Vibration Adjust or 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 Internal engine problem See your dealer Engine does not accelerate properly Engine does not crank
CS-2511P SPECIFICATIONS • 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. • 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.
PRODUCT REGISTRATION MODEL CS-2511P CS-2511P Gasoline Use 89 octane 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 Adjustable automatic oiler Chain oil capacity 140 ml (4.73 US. fl. oz.) Starter system Automatic rewind starter Clutch Centrifugal type Sprocket type Spur type, 6-tooth, 3/8 in.
CS-2511P X7503333700 © 11/2020 ECHO Incorporated PRODUCT REGISTRATION 59
C83715001001 - C83715999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.
