Echo CS-4010 Operator's Manual
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Echo CS-4010 Operator's Manual

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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.
X7503380000
7/22 ECHO Incorporated
Operator's
Manual
CS-4010

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CJ
March 1, 2025

Where is the oil adjustment screw located on a cs-4010 echo chain saw?

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Mr. Anderson
March 1, 2025

The provided context does not specify the exact location of the oil adjustment screw on the Echo CS-4010 chainsaw.

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Summary of Contents for Echo CS-4010

  • 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. X7503380000 7/22 ECHO Incorporated...

  • Page 2: Table Of Contents

    Introduction ....................4 Servicing Information .................. 4 Parts and Serial Number..............4 Service ....................5 ECHO Consumer Product Support ............5 Product Registration ................5 Additional Literature ................5 Safety ......................5 Manual Safety Symbols and Important Information ......5 International Symbols ................
  • Page 3 Spark Arrestor Screen ............... 47 Exhaust Port Cleaning............... 48 Carburetor Adjustment............... 49 Setting the Saw Chain ............... 50 Troubleshooting ..................53 Storage ..................... 55 Storage After Use ................55 Specifications ................... 56 Product Registration ................. 57 Notes ......................59 X7503380000 7/22 ECHO Incorporated...

  • Page 4: Introduction

    SERVICING INFORMATION Parts and Serial Number 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.

  • Page 5: Service

    Register your ECHO equipment online at www.echo-usa.com or by filling out the product registration sheet included in this manual. Registering your product confirms warranty coverage and provides a direct link to ECHO if we find it necessary to contact you.

  • Page 6: International Symbols

    Read and follow all safety precautions in the Carburetor instruction Adjustment - manual. Failure to High Speed follow instructions Mixture could result in serious personal injury. Wear Eye, Ear, Carburetor and Head Adjustment - Idle Protection. Speed X7503380000 7/22 ECHO Incorporated...
  • Page 7 Fuel and Oil must be used to Mixture operate the chainsaw. Hot Surface Chain Oil Fill Chain Brake Chain Oiler Operation Adjustment Choke Control “COLD START” Position (Choke Closed) Purge Bulb Choke Control “RUN” Position (Choke Open) X7503380000 7/22 ECHO Incorporated...

  • Page 8: Personal Condition And Safety Equipment

    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. X7503380000 7/22 ECHO Incorporated...
  • Page 9 Gloves also provide protection against cuts and scratches, cold environments, and reduce the transmission of machine vibration to your hands. Hearing and 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 10 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 11 • 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. X7503380000 7/22 ECHO Incorporated...

  • Page 12: Rules For Safe Operation

    Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause you to lose control of the saw which could result in serious personal injury. X7503380000 7/22 ECHO Incorporated...
  • Page 13 Cut at high engine speeds. Do not overreach or cut above shoulder height. Follow manufacturer’s sharpening and maintenance instructions for the saw chain. Only use replacement bars and chains specified by the manufacturer or the equivalent. X7503380000 7/22 ECHO Incorporated...

  • Page 14: Correct Use Of Chain Brake

    • If the brake is tripped by kickback reaction, the chain will stop immediately. Release the throttle to avoid possible damage to the engine or clutch. • Do not attempt to operate the Locked engine with the brake locked. X7503380000 7/22 ECHO Incorporated...
  • Page 15 Chain brakes have been designed and tested to comply with international safety standards as follows: USA: ANSI Standard B175.1 Safety Requirement for chainsaws Canada: CSA Standard Z62.1, Z62.3 X7503380000 7/22 ECHO Incorporated...
  • Page 16 Release the front handle and drop the end of the guide bar against the wooden surface. 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. X7503380000 7/22 ECHO Incorporated...
  • Page 17 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. X7503380000 7/22 ECHO Incorporated...
  • Page 18 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. X7503380000 7/22 ECHO Incorporated...
  • Page 19 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. X7503380000 7/22 ECHO Incorporated...

  • Page 20: 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. X7503380000 7/22 ECHO Incorporated...

  • Page 21: 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 22 • 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. X7503380000 7/22 ECHO Incorporated...

  • Page 23: Contents

    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 24 Remove sprocket guard nuts (D) Unlock Chain Brake and remove sprocket guard (E). Remove guide bar (F) and saw chain if necessary. Note: See “Maintenance and Care” section for guide bar/ saw chain maintenance procedures. Unlock the chain brake. X7503380000 7/22 ECHO Incorporated...
  • Page 25 Release cylinder cover latches (A) by inserting screw driver (B) and lifting latch tip as shown. Remove cylinder cover (C). Remove spark plug lead. Unlock chain brake. X7503380000 7/22 ECHO Incorporated...
  • Page 26 Tighten sprocket guard nuts to 20-23 N•m (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. X7503380000 7/22 ECHO Incorporated...

  • Page 27: 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...
  • Page 28 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 29 Metric Add the proper amount of 2-stroke oil to gasoline. gal. fl.oz. Close container and shake to mix oil with gasoline. Add remaining gasoline, close fuel container, and remix. X7503380000 7/22 ECHO Incorporated...

  • Page 30: Chain Lubricant

    Note: Not all caps include this feature. Chain Lubricant Note: Cap indication - Fuel/oil tanks are indicated by the following illustrations X7503380000 7/22 ECHO Incorporated...

  • Page 31: Winter Operation

    Note: For operation at normal temperature (5°C [41°F]) return plug to its original position. To prevent over heating of the engine. Starting Cold Engine Make sure the bar and chain are free from any obstruction when starting the chain saw. X7503380000 7/22 ECHO Incorporated...
  • Page 32 Pull starter handle to start the engine. Note: Do not pull starter rope out to maximum possible position. Note: Do not allow recoil handle to snap back against the casing. Note: If engine does not start after 5 pulls, repeat instructions. X7503380000 7/22 ECHO Incorporated...

  • Page 33: Starting Warm Engine

    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. Note: If engine does not start after 5 pulls, use cold start procedure. X7503380000 7/22 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. X7503380000 7/22 ECHO Incorporated...

  • Page 35: Stopping

    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. X7503380000 7/22 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. X7503380000 7/22 ECHO Incorporated...
  • Page 37 ◆ throttle longer than five 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. X7503380000 7/22 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. X7503380000 7/22 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 kick back, you may not have enough control to prevent possible injury. X7503380000 7/22 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-4010. Guide Bar Saw Chain ECHO Part No.

  • Page 41: Kick Guardtm

    To purchase an optional Kick Guard contact your 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. For the name of the Shindaiwa dealer nearest you, call 1-877-986-7783 or on the web at www.shindaiwa-usa.com.

  • 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 X7503380000 7/22 ECHO Incorporated...

  • Page 43: Maintenance Intervals

    Oil Filter Inspect / Replace * Fuel Filter Inspect * Fuel Cap Gasket Inspect * Spark Plug Inspect / Clean / Replace * Muffler Spark Arrestor Inspect/Clean/Replace * Cylinder Exhaust Port Inspect / Clean / De-carbon X7503380000 7/22 ECHO Incorporated...

  • Page 44: Air Filter

    • The standard spark gap is 0.65 mm (0.026 in.). • Fastening torque: 13-17 N•m (110-150 in•lbf). 0.65 mm (0.026 in.) Remove cylinder cover and remove spark plug. Correct the spark gap if it is wider or narrower than the standard gap. X7503380000 7/22 ECHO Incorporated...

  • Page 45: Check Fuel System

    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. X7503380000 7/22 ECHO Incorporated...

  • Page 46: Oil Filter

    Worn: 0.5 mm (0.020 in.) premature damage or wear of saw chain. • When the sprocket has worn 0.5 mm (0.020 in.) or more, replace it. • Check sprocket when you install new chain. Replace it if worn. X7503380000 7/22 ECHO Incorporated...

  • Page 47: Cooling System Cleaning

    Check with your local or state authorities for specific regulations in your area. Failure to follow these requirements is a violation of the law. Spark Arrestor Screen Carbon deposits in muffler will cause drop in engine output and overheating. Spark arrestor screen must be checked periodically. X7503380000 7/22 ECHO Incorporated...

  • Page 48: Exhaust Port Cleaning

    Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port (D). Install muffler. Tighten muffler mounting bolts (or nuts) to 7 - 9 N•m (60- 80 in•lbf). Install cylinder cover and attach spark plug lead. X7503380000 7/22 ECHO Incorporated...

  • Page 49: Carburetor Adjustment

    Flash choke twice during warm-up to clear any air from the fuel system. 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. Idle Speed Adjustment: X7503380000 7/22 ECHO Incorporated...

  • Page 50: Setting The Saw Chain

    • Keep the cutters sharp at all times. • Keep the left and the right cutters properly aligned. • Note that blunt or irregular cutters will result in poor cutting performance, increased vibration of chains and premature breakage of the saw chain. X7503380000 7/22 ECHO Incorporated...
  • Page 51 • Place depth gauge tool firmly on Depth Gauge Tool 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. X7503380000 7/22 ECHO Incorporated...
  • Page 52 • If the saw chain becomes soiled with resin, for instance, Parallel depth gauge clean it with kerosene and soak in it oil. To sharpen other chains, follow chain manufacturer’s instructions. X7503380000 7/22 ECHO Incorporated...

  • Page 53: Troubleshooting

    Improper Carburetor Vibration Adjust dies adjustment Extended Cooling Cooling operation in system dirty Clean system dirty or dusty or plugged Engine locations does not Spark Spark accelerate arrestor arrestor Normal wear Replace properly screen screen plugged X7503380000 7/22 ECHO Incorporated...
  • Page 54 See your dealer problem crank 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. X7503380000 7/22 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. X7503380000 7/22 ECHO Incorporated...

  • Page 56: Specifications

    Guide bar 18 in (optional 16 in.) Saw chain 91PX Front hand guard, Rear hand guard, Anti-vibration Standard features device, Throttle control lockout, Chain catcher, Spark arrestor muffler * Technical data subject to change without notice. X7503380000 7/22 ECHO Incorporated...

  • Page 57: 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 58 PRODUCT REGISTRATION CS-4010 X7503380000 7/22 ECHO Incorporated...

  • Page 59: Notes

    CS-4010 NOTES NOTES X7503380000 7/22 ECHO Incorporated...
  • Page 60 C91315001001 - C91315999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.com...

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