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x7722271404 / x772000164

Instruction Manual

The muffler or catalytic muffler and surrounding cover may become extremely hot.
Always keep clear of exhaust and muffler area, otherwise serious personal injury may
occur.
The engine exhaust from this product contains chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
Users of this equipment risk injury to themselves and others if the unit is used
improperly and/or safety precautions are not followed. ECHO provides an operator's
manual and a safety manual. Both must be read and understood for proper and safe
operation. Failure to do so could result in serious injury.
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.
X7503274200
© 11/2014 ECHO Inc.
CS-310
CHAIN SAW
Burn Hazard

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Summary of Contents for Echo CS-310

  • Page 1: Instruction Manual

    Users of this equipment risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. ECHO provides an operator’s manual and a safety manual. Both must be read and understood for proper and safe operation.
  • Page 2: Table Of Contents

    Warranty Statements ..............................39 Product Registration ..............................41 Notes..................................42 Servicing Information ..............................43 Parts/Serial Number............................43 Service ................................43 Echo Consumer Product Support ........................43 Product Registration............................43 Additional or Replacement Manuals ........................43 X7503274200 © 11/2014 ECHO Inc.
  • Page 3: Packing List

    After opening the carton, check for damage. Immediately notify your retailer or ECHO dealer of damaged or missing parts. Use the contents list to check for missing parts.
  • Page 4: Safety

    Kickback of the guide bar, contact an object. Kickback can lead to dangerous loss of the chain saw. TO AVOID KICKBACK: a. Contact of the guide bar tip with any object should be avoided. X7503274200 © 11/2014 ECHO Inc.
  • Page 5: Correct Use Of Chain Brake

    • 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. X7503274200 © 11/2014 ECHO Inc.
  • Page 6 SAFETY CS-310 If the chain does not stop immediately, return the saw to your authorized ECHO 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.
  • Page 7 Check fuel system for leaks due to fuel tank damage, especially if the unit is dropped. If damage or leaks are found, do not use unit, otherwise serious personal injury or property damage may occur. Have unit repaired by an authorized servicing dealer before using. X7503274200 © 11/2014 ECHO Inc.
  • Page 8: Personal Condition And Safety Equipment

    Hearing/Ear Protection ECHO recommends wearing hearing protection 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.
  • Page 9 ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.
  • Page 10: Symbols And Signs

    Wear Eyes, Ears And Head Oil And Gasoline Mixture Protection Tip contact may cause the guide bar to move suddenly upward and Chain Oil Fill backward, which may cause serious injury X7503274200 © 11/2014 ECHO Inc.
  • Page 11 Both of the operator’s hands must Purge Pump be used to operate the chain saw Carburetor Adjustment - Hot Surface Low Speed Mixture Carburetor Adjustment - Chain Brake Operation High Speed Mixture Carburetor Adjustment - Emergency Stop Idle Speed X7503274200 © 11/2014 ECHO Inc.
  • Page 12: Manual Safety Symbols And Important Information

    The 50 or 300 hour emission compliance period is the time span selected by the manufacturer certifying the engine emissions output meets applicable emissions regulations, provided that approved maintenance procedures are followed as listed in the Maintenance Section of this manual. X7503274200 © 11/2014 ECHO Inc.
  • Page 13: 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. See PARTS ORDERING instructions for specific information.
  • Page 14 2. THROTTLE LATCH - Device that sets idle speed to fast idle when choke control is operated. 3. CHAIN BRAKE - Stops the saw chain. 4. DRIVE SPROCKET - Drives saw chain. 5. CLUTCH - Turns drive sprocket when engine rpm is fast enough to provide the power needed for cutting. X7503274200 © 11/2014 ECHO Inc.
  • Page 15: Preparation For Use

    2. Remove spark plug lead. 3. Remove sprocket guard nuts (A) and remove sprocket guard (B). 4. Remove guide bar and saw chain if necessary. Note: See “Maintenance and Care” section for guide bar/saw chain maintenance procedures. X7503274200 © 11/2014 ECHO Inc.
  • Page 16 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, Chain Tension”. X7503274200 © 11/2014 ECHO Inc.
  • Page 17: Operation

    OPERATION Fuel 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 alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement.
  • Page 18 , will void the two-stroke engine warranty. ™ Echo premium Power Blend X Universal 2-Stroke Oil 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.
  • Page 19: Chain Lubricant

    • Do not use used or reclaimed oil to avoid various oiler problems. • Use ECHO bar and chain oil. • When ECHO bar and chain oil is not available: Use motor oil, etc. Fuel tank cap Oil tank cap •...
  • Page 20: Winter Operation

    3. Fill the chain oil tank with lubricant. Do not over fill. 4. Move ignition switch (A) UP to “RUN” position. 5. Push purge pump (B) 3 to 4 times or until fuel is visible in purge pump. X7503274200 © 11/2014 ECHO Inc.
  • Page 21: Starting Warm Engine

    Chain brake 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. Move ignition switch UP to “RUN” position. X7503274200 © 11/2014 ECHO Inc.
  • Page 22: Running

    2. Move ignition switch (A) DOWN to “STOP” position. Note: If engine does not stop, pull choke control knob OUT fully to stop engine. Return the unit to your authorized ECHO dealer to check and repair stop switch before starting the engine again.
  • Page 23: Checking Chain Tension

    General • This chain saw is designed for cutting wood. Do not cut metal, plastic or any non-wood material. • Read the ECHO “CHAIN SAW SAFETY MANUAL” included with your chain saw for additional cutting and safety instructions. • Wear suitable hearing protection such as earmuffs or earplugs to protect against objectionable or uncomfortable loud noises.
  • Page 24 Note: Some material may adversely affect the housings of your ECHO chain saw.(Example: Palm Tree Acid, fertilizer, etc.) To avoid housing deterioration, carefully remove all packed saw dust around clutch and guide bar area and wash with water.
  • Page 25 Support the earth; it is harmful for the saw, and you stand a good chance of being struck by flying debris. X7503274200 © 11/2014 ECHO Inc.
  • Page 26: Chain And Guide Bar Combination

    Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above. If your tip guard is damaged or lost, contact your Echo dealer for a replacement. For the name of the Echo dealer nearest you, Call: 1-800-432-ECHO (3246) or on the web at www.echo-usa.com.
  • Page 27 3.8 c.i.d. specified in ANSI B175.1 or CSA 62.1, .3. Note: LOW KICKBACK SAW CHAIN meets the kickback performance requirements of ANSI B175.1 or CSA 62.1, .3 (safety requirements for gasoline-powered chain saws). X7503274200 © 11/2014 ECHO Inc.
  • Page 28: Maintenance

    If you are unsure or are not equipped with the necessary tools, you may want to take your unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the ECHO Dealer do it, each maintenance task has been graded.
  • Page 29: Carburetor Adjustment

    This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized ECHO service dealer.
  • Page 30: Air Filter

    When servicing model year 2012 and later equipment, only fuel supply hoses certified by EPA can be used to replace the original equipment supply hose. Fines up to $37,500 may be enforced for using an un-certified replacement part. X7503274200 © 11/2014 ECHO Inc.
  • Page 31: Oil Filter

    • Check sprocket when you install new chain. Replace it if worn. 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. X7503274200 © 11/2014 ECHO Inc.
  • Page 32: Cooling System Cleaning

    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. Note: When cleaning carbon deposit, be careful not to damage the catalytic element inside muffler. X7503274200 © 11/2014 ECHO Inc.
  • Page 33: Exhaust Port Cleaning

    9. Install 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. X7503274200 © 11/2014 ECHO Inc.
  • Page 34: Setting The Saw Chain

    • For setting saw chain, round file (4.0 mm [5/32 in.] diam.) and flat file are used. 30° • Push file as shown. Keep this angle • To keep correct position and correct angle, use a file holder. • Hold the file horizontally. 90° X7503274200 © 11/2014 ECHO Inc.
  • Page 35 • If the saw chain becomes soiled with resin, for instance, clean 0.64 mm (0.025 in.) it with kerosene and soak in it oil. To sharpen other chains, follow chain manufacturer’s instructions. Parallel Depth gauge X7503274200 © 11/2014 ECHO Inc.
  • Page 36: Troubleshooting

    See your Echo dealer starts hard/  Stop switch OFF  Turn switch to ON  doesn’t start Spark at end of See your Echo dealer  No spark Electrical problem plug wire Interlock switch See your Echo dealer Spark gap incorrect...
  • Page 37: Storage

    Note: • For future reference, you should keep this Instruction manual and the Safety manual. • If this Instruction manual or the Safety manual has become illegible or is lost, please contact your ECHO dealer, or go to www.echo-usa.com. X7503274200...
  • Page 38: Technical Data

    NGK BPMR8Y (Gap 0.65 mm [0.026 in.]) Fuel tank capacity 250 mL (8.45 US. fl. oz.) ® 50 : 1 ratio with ECHO Power Blend X™ or ECHO Red Armor ISO-L-EGD (ISO/CD Fuel 13738) and JASO M345-FD two-stroke, air-cooled engine oil.
  • Page 39: Warranty Statements

    Any misuse from contact with concrete, rocks, or other structures is not covered by this warranty. • ECHO’s Rapid Loader String Head carries a lifetime warranty on the line locking system, parts only; no labor. Refer to your operator’s manual for string head installation and maintenance instructions.
  • Page 40 10% ethanol (grain alcohol) or 15% MTBE (methyl/tertiary/butyl/ether) is also approved. The prescribed mixing ratio of gasoline to oil is listed on the ECHO oil label and covered in your operator’s manual. engine speeds as listed in your operator’s manual.
  • Page 41: Product Registration

    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, 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.
  • Page 42: Notes

    NOTES CS-310 NOTES X7503274200 © 11/2014 ECHO Inc.
  • Page 43: Servicing Information

    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. When presenting your unit for Warranty service/repairs, proof of purchase is required.
  • Page 44 ECHO, INCORPORATED C33113001001/C33113999999 400 Oakwood Road C04713001001/C04713999999 Lake Zurich, IL 60047 www.echo-usa.com...

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