Echo CS-400 Operator's Manual
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Echo CS-400 Operator's Manual

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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.
X7503256004
© 08/2020 ECHO Incorporated
Operator's
Manual
CS-400
Chain Saw

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Summary of Contents for Echo CS-400

  • Page 1 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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Introduction......................... 3 Servicing Information....................3 Parts/Serial Number................... 3 Service ....................... 4 ECHO Consumer Product Support ..............4 Product Registration................... 4 Additional Literature ................... 4 Packing List ........................ 4 Safety ......................... 5 Rules For Safe Operation .................. 5 Correct Use Of Chain Brake ................

  • Page 3: Introduction

    Genuine ECHO Parts and Assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you. For future reference write them in the space provided below.

  • Page 4: Service

    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. Power Head...

  • Page 5: Safety

    With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Kickback Danger Zone Sudden surprise contributes to accidents. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 6: Correct Use Of Chain Brake

    Testing The Brake • Start the engine on a solid level Locked surface and run at a fast idle until warm. • Hold the saw firmly by the handles and accelerate the engine to a fast idle. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 7 Chain brakes have been designed and tested to comply with international safety standards as follows: USA: ANSI Standard B175.1 Safety Requirement for chain saws Canada: CSA Standard Z62.1, Z62.3 X7503256004 © 08/2020 ECHO Incorporated...
  • Page 8 The impact should lock the chain brake. When checking the operation of the automatic chain brake, use a soft surface substance like wood to absorb the impact so the chain is not damaged. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 9 (For example, if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur and could subsequently cause the flywheel to burst.) X7503256004 © 08/2020 ECHO Incorporated...
  • Page 10 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. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 11 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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 12: 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 can be worn over ◆ safety glasses or goggles to provide protection from sharp branches or flying debris. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 13 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. 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 14 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.
  • Page 15 Never touch wires directly or indirectly, otherwise serious injury or death can result. Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 16: International Symbols

    Both of the operator’s hands must be used to Fuel and Oil Mixture operate the chain saw Hot Surface Chain Oil Fill Chain Oiler Chain Brake Operation Adjustment X7503256004 © 08/2020 ECHO Incorporated...
  • Page 17 Symbol Description Symbol Description Choke Control “COLD START” Position (Choke Closed) Purge Pump Choke Control “RUN” Position (Choke Open) De-Compression STOP / Momentary Device STOP Switch Note: Not all symbols will appear on your unit. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 18: Manual Safety Symbols And Important Information

    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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 19: Emission Control (Exhaust & Evaporative)

    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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 20: 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.
  • Page 21 CHAIN BRAKE - Stops the saw chain. DRIVE SPROCKET - Drives saw chain. CLUTCH - Turns drive sprocket when engine rpm is fast enough to provide the power needed for cutting. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 22: Preparation For Use

    Install bolt (A) in rear hole (B) of optional Kick Guard and through front hole (C) in guide bar. IMPORTANT: Dimple (D) in optional Kick Guard must engage recess (E) in guide bar. Securely tighten nut (F) and bolt (A). X7503256004 © 08/2020 ECHO Incorporated...
  • Page 23 Install sprocket guard over guide bar studs. Ensure chain tension adjuster pin (H) fits into the guide bar adjuster hole (G), brake band (J) is positioned around clutch drum (F). Tighten sprocket guard nuts finger tight. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 24 Always loosen sprocket guard nuts before turning the chain tension adjuster, otherwise the sprocket guard and tensioner will be damaged. Remove air cleaner cover and Unlock chain brake disconnect spark plug lead. Loosen sprocket guard nuts. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 25 Tighten guide bar nuts to 20-23 N•m (200 to 230 kgf•cm, 175-200 in•lbf). DO NOT over-tighten nuts. Damage to saw may result. Assemble components in reverse order. Keep chain properly tensioned at all times. Note: All chains require frequent adjustments. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 26: Operation

    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. Two Stroke Oil - A two-stroke engine oil, such as ECHO branded 2-stroke oils, meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must be used.
  • Page 27 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 will result.
  • Page 28 • Empty the fuel tank prior to storing the unit. Return unused fuel to an approved fuel storage container. Stored two-stroke fuel can separate. ALWAYS shake fuel container thoroughly before each use. Used oil and gasoline, and soiled towels are hazardous waste materials. Disposal laws vary by locality. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 29: Chain Lubricant

    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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 30: Winter Operation

    Move chain brake lever fully Chain brake FORWARD to LOCK chain brake before starting. Fill the fuel tank with fuel mixture. Do not over fill. Fill the chain oil tank with lubricant. Do not over fill. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 31 Do not start engine before chain brake is locked. ◆ Securely hold the chain saw and pull starter handle several times until first starting sound. Push choke control knob all the way IN (OPEN choke position). X7503256004 © 08/2020 ECHO Incorporated...

  • Page 32: Starting Warm Engine

    Make sure the bar and chain are free from any obstruction when starting the chain saw. Move chain brake lever fully Chain brake FORWARD to LOCK chain brake before starting. Confirm there is fuel and chain oil in the tanks. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 33 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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 34: Running

    (see technical data page). Confirm proper acceleration and lubrication of chain and bar. Do not run the engine at high speed unnecessarily. Be sure that saw chain stops moving when throttle trigger is released. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 35: Stopping

    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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 36: Cutting Instructions

    Before attempting to fell a tree, cut some small logs or limbs. Become thoroughly familiar with the controls and the responses of the saw. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 37 5 seconds or engine damage can occur. Keep chain properly tensioned during operation to prevent ◆ the chain from jumping out of the guide bar rail slot and damaging metal engine parts. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 38 5 cm (2 in.) will act as a One-third tree diameter hinge when the tree falls, guiding it in the desired direction. When the tree starts to fall, kill the engine, place the saw on the ground and make your retreat quickly. X7503256004 © 08/2020 ECHO Incorporated...
  • Page 39 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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 40: 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-400. Guide Bar Saw Chain ECHO Part No.

  • Page 41: Kick Guardtm

    Kick Guard (Optional) To purchase an optional Kick Guard 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.

  • Page 42: Maintenance

    Level 1 = Easy to do. Common tools may be required. Level 2 = Moderate difficulty. Some specialized tools may be required. Level 3 = See your dealer. Click HERE or go to http://www.echo-usa.com/products/maintenance-kit HERE https://www.shindaiwa-usa.com/you-can.aspx X7503256004 © 08/2020 ECHO Incorporated...

  • Page 43: Maintenance Intervals

    Guide Bar & Sprocket Nose Inspect 3 Months Air Filter Replace * Oil Filter Inspect / Replace * Fuel Filter Inspect * Fuel Cap Gasket Inspect * Spark Plug Inspect / Clean / Replace * Muffler Spark Arrestor Inspect/Clean/Replace * X7503256004 © 08/2020 ECHO Incorporated...

  • Page 44: Carburetor Adjustment

    1,100 feet ASL, otherwise severe engine damage can result. Before adjusting carburetor clean or replace air filter and muffler “Spark Arrestor Screen”. Make sure the bar and chain are properly adjusted. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 45: Air Filter

    Check before every use. CLOSE choke ( Remove air cleaner cover (A) and air filter (B). Lightly brush dust off air filter, or clean with compressed air, or replace the air filter. Install air filter and cover. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 46: Spark Plug

    Pull and twist slightly to separate. Install the new filter with the reverse action. When the inside of the fuel tank is dirty, rinse the tank out with gasoline to clean it. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 47: Automatic Oiler

    Pull and twist slightly to separate. Install the new filter with the reverse action. When the inside of the tank gets dirty, rinse the tank out with gasoline to clean it. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 48: Guide Bar

    • Clogged fins will result in poor engine cooling. Remove air cleaner cover, cylinder cover, and starter. Use compressed air or wooden tool to remove dirt and dust from between fins to let cooling air pass easily. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 49: Spark Arrestor Muffler

    Clean carbon deposits from muffler components. Replace screen if it is cracked, or has holes burned through. Assemble components in reverse order. Note: When cleaning carbon deposit, be careful not to damage the catalytic element inside muffler. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 50: Exhaust Port Cleaning

    11. Install guide bar and chain. Adjust chain tension. 12. 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. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 51: Setting The Saw Chain

    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° Keep this angle X7503256004 © 08/2020 ECHO Incorporated...
  • Page 52 • Properly filed cutters are shown in illustration. • When setting of the chain is 55° finished, soak it in oil and wash away filings completely before using. 30° Top plate Side plate angle filing angle X7503256004 © 08/2020 ECHO Incorporated...

  • Page 53: Troubleshooting

    - wire See your dealer Interlock switch No spark Incorrect gap - Adjust to 0.65mm Covered with (0.026 in.) Spark at carbon - Fouled plug Clean or replace with fuel - Plug plug defective X7503256004 © 08/2020 ECHO Incorporated...
  • Page 54 See your dealer problem crank Fuel vapors are extremely flammable and can cause fire and/or explosion. Never test for ignition spark by grounding spark plug near cylinder plug hole, otherwise serious personal injury can result. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 55: Storage

    Do not lend or rent your chain saw without the Operator’s Manual. Note: • For future reference, you should keep this Operator’s Manual. • If this Operator’s Manual becomes illegible or is lost, please contact your ECHO dealer, or go to www.echo-usa.com. X7503256004 © 08/2020 ECHO Incorporated...

  • Page 56: Specifications

    12,000 RPM (W.O.T.) Chain tensioner Side access system Guide bar 16, 18 in Saw chain 91PX/91VG Front hand guard, Rear hand guard, Anti-vibration Standard features device, Spiked bumper, Throttle control lockout, Chain catcher, Spark arrestor muffler, X7503256004 © 08/2020 ECHO Incorporated...
  • Page 57 CS-400 NOTES NOTES X7503256004 © 08/2020 ECHO Incorporated...

  • Page 58: 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, 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.
  • Page 59 CS-400 PRODUCT REGISTRATION X7503256004 © 08/2020 ECHO Incorporated...
  • Page 60 C69715001001 - C69715999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.com...

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