Echo CS-310 Operator's Manual
  1. Manuals
  2. Brands
  3. Echo Manuals
  4. Chainsaw
  5. CS-310
  6. Operator's manual

Echo CS-310 Operator's Manual

Hide thumbs Also See for CS-310:
Table of Contents

Advertisement

Quick Links

x7722271404 / x772000164
Operator's 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.
Read and understand all provided literature before use. 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.
X7503277900
©3/2020 ECHO Inc.
CS-310
Chain Saw
Burn Hazard

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CS-310 and is the answer not in the manual?

Questions and answers

Richard Harris
July 21, 2025

PG meaning for chain? VS meaning for chain?

0

Subscribe to Our Youtube Channel

Related Manuals for Echo CS-310

Summary of Contents for Echo CS-310

  • Page 1 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. X7503277900 ©3/2020 ECHO Inc.

  • Page 2: Table Of Contents

    Cooling System Cleaning......................32 Spark Arrestor Muffler........................ 33 Spark Arrestor Screen ....................... 33 Exhaust Port Cleaning ....................... 33 Setting The Saw Chain ......................34 Troubleshooting ..........................37 Storage ............................38 Storage After Use ........................38 Technical Data..........................39 X7503277900 ©3/2020 ECHO Inc.

  • Page 3: Introduction

    To ensure trouble free warranty coverage it is important that you register your ECHO equipment on-line at echo-latinamerica.com or by filling out the warranty registration card supplied with your unit. Registering your product confirms your warranty coverage and provides a direct link between you and ECHO if we find it necessary to contact you.

  • Page 4: Service

    CS-310 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 : Country Distributor Name...

  • Page 5: Packing List

    The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, some assembly may be necessary. 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 6: Correct Use Of Chain Brake

    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: X7503277900 ©3/2020 ECHO Inc.
  • Page 7 A chain saw is intended for two-handed 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. X7503277900 ©3/2020 ECHO Inc.
  • Page 8 • Always wear proper safety clothing to protect your lower body from sharp saw chain and hot muffler. • Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result. X7503277900 ©3/2020 ECHO Inc.

  • Page 9: Personal Condition And Safety Equipment

    Eye protection that meets ANSI Z87.1 or CE requirements must be worn whenever you operate ◆ the unit. For additional safety, a full-face shield may be worn over safety glasses or goggles to provide ◆ protection from sharp branches or flying debris. X7503277900 ©3/2020 ECHO Inc.
  • Page 10 ECHO does not recommend the use of this machine by anyone who has a pacemaker.
  • Page 11 This unit is not insulated against electrical current. Never touch wires directly or indirectly, otherwise serious injury or death may result. Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. X7503277900 ©3/2020 ECHO Inc.

  • Page 12: Symbols And Signs

    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. X7503277900 ©3/2020 ECHO Inc.
  • Page 13 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. X7503277900 ©3/2020 ECHO Inc.

  • Page 14: 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. 3 (Optional) X7503277900 ©3/2020 ECHO Inc.
  • Page 15 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. X7503277900 ©3/2020 ECHO Inc.

  • Page 16: Preparation For Use

    5. Unlock 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. X7503277900 ©3/2020 ECHO Inc.
  • Page 17 Tighten guide bar nuts to 1206.58 to 1379.95 kPa. DO NOT optional over-tighten nuts. Damage to saw may result. Kick Guard 6. Assemble components in reverse order. 7. Keep chain properly tensioned at all times. Note: All chains require frequent adjustments. Shown with optional Kick Guard X7503277900 ©3/2020 ECHO Inc.

  • Page 18: Operation

    Read and follow instructions in the Storage section of this manual. Fuel containing more than 25% ethanol is NOT approved for use in ECHO 2-stroke gasoline engines. Fuel containing more than 25% ethanol may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement.

  • Page 19: Chain Lubricant

    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. X7503277900 ©3/2020 ECHO Inc.

  • Page 20: Winter Operation

    Chain brake before starting. 2. Fill the fuel tank with fuel mixture. Do not over fill. 3. Fill the chain oil tank with lubricant. Do not over fill. 4. Move ignition switch (A) UP to “RUN” position. X7503277900 ©3/2020 ECHO Inc.

  • Page 21: Starting Warm Engine

    • Never use fast idle throttle latch for cutting. • Use the fast idle throttle latch only in starting. Starting Warm Engine Make sure the bar and chain are free from any obstruction when starting the chain saw. X7503277900 ©3/2020 ECHO Inc.

  • Page 22: Running

    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. X7503277900 ©3/2020 ECHO Inc.

  • Page 23: Stopping

    Note: Return the unit to your authorized dealer to check and repair stop switch before starting the engine again. Checking Chain Tension Shown with optional Kick Guard Chain tension should be checked frequently during work and corrected as necessary. Do not operate with a loose chain. X7503277900 ©3/2020 ECHO Inc.

  • Page 24: Chain Lubrication Test

    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. X7503277900 ©3/2020 ECHO Inc.
  • Page 25 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. X7503277900 ©3/2020 ECHO Inc.

  • Page 26: Chain And Guide Bar Combination

    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-310. Guide Bar Saw Chain ECHO Part No.

  • Page 27: Guide Bar

    “LOW-KICKBACK,” that meets ANSI B175.1 or CSA Z62.1, .3 Standard when tested on the representative sample of chain saws below 9.65 cm3, and Echo guide bar specified. Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above.

  • 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

    6. Start and warm engine for 1 minute alternating engine speed between (WOT) and idle every 5 seconds. Turn Hi mixture needle (CCW) until engine speed drops to approx. 12,500 rpm at WOT. Note: Do not run engine at high speed without load longer than 10 seconds, or engine damage may occur. X7503277900 ©3/2020 ECHO Inc.

  • Page 30: Air Filter

    • The standard spark gap is 0.65 mm (0.026 in.). • Fastening torque: 758.42 to 1034.21 kPa. 0.65 mm (0.026 in.) 1. Remove cylinder cover and remove spark plug. 2. Correct the spark gap if it is wider or narrower than the standard gap. X7503277900 ©3/2020 ECHO Inc.

  • Page 31: Check Fuel 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. X7503277900 ©3/2020 ECHO Inc.

  • Page 32: Guide Bar

    • Clogged fins will result in poor engine cooling. 1. Remove cylinder cover and starter. 2. Use compressed air or wooden tool to remove dirt and dust from between fins to let cooling air pass easily. X7503277900 ©3/2020 ECHO Inc.

  • Page 33: Spark Arrestor Muffler

    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. 4. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port. X7503277900 ©3/2020 ECHO Inc.

  • Page 34: Setting The Saw Chain

    • Drive link serves to remove sawdust from the groove of the guide Sharpen lower edge bar. Keep the lower edge of the drive link sharp where indicated. X7503277900 ©3/2020 ECHO Inc.
  • Page 35 • 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 Side plate angle X7503277900 ©3/2020 ECHO Inc.
  • Page 36 • If the saw chain becomes soiled with resin, for instance, clean it with kerosene and soak in it oil. Parallel To sharpen other chains, follow chain manufacturer’s instructions. Depth gauge X7503277900 ©3/2020 ECHO Inc.

  • Page 37: Troubleshooting

    Fuel strainer clogged Clean or replace Fuel at carburetor No fuel at carburetor Fuel line clogged Clean or replace Carburetor See your Echo dealer No fuel at cylinder Carburetor See your Echo dealer OPEN choke Fuel at cylinder Clean/replace air filter...

  • Page 38: Storage

    Do not lend or rent your chain saw without the included documentation. Note: • For future reference, you should keep all included documentation. • If this documentation has become illegible or is lost, please contact your ECHO dealer, or go to www.echo-usa.com. X7503277900...

  • Page 39: Technical Data

    Spark plug NGK BPM8Y (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 40 C80829001001 - C80829999999 ECHO, INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.com...

Table of Contents

Save PDF