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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.
X7503361900
© 08/23 ECHO Incorporated
Operator's
Manual
335s
Chainsaw

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Summary of Contents for Echo Shindaiwa 335s

  • 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 2: Table Of Contents

    Cooling System Cleaning................. 48 Spark Arrester Muffler ..................48 Spark Arrester Screen..................49 Exhaust Port Cleaning ..................49 Setting the Saw Chain..................50 Troubleshooting......................53 Storage........................54 Storage After Use..................... 54 Specifications ......................55 Product Registration....................56 X7503361900 © 08/23 ECHO Incorporated...
  • Page 3: Introduction

    Model Number and Serial Number of the unit with you. For future reference, write them in the space provided below. Model No. _____________________ Serial No. _____________________ X7503361900 © 08/23 ECHO Incorporated...
  • Page 4: Service

    Registering your product confirms your warranty coverage and provides a direct link between you and ECHO if we find it necessary to contact you. Additional Literature In addition to finding information online, information is available from your Authorized Shindaiwa Service Dealer, or by contacting ECHO Incorporated, 400 Oakwood Road, Lake Zurich, IL 60047, 1-800-432-ECHO (3246).
  • Page 5: Safety

    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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 6: International Symbols

    Both of the operator’s hands Fuel and Oil must be used to Mixture operate the chainsaw. Hot Surface Chain Oil Fill X7503361900 © 08/23 ECHO Incorporated...
  • Page 7 Chain Oiler Operation Adjustment Choke Control “COLD START” Position (Choke Closed) Purge Bulb Choke Control “RUN” Position (Choke Open) STOP / Decompression Momentary Device STOP Switch Note: Not all symbols will appear on your unit. X7503361900 © 08/23 ECHO Incorporated...
  • Page 8: 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. X7503361900 © 08/23 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 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 12: Rules For Safe Operation

    With a basic understanding of kickback, you can reduce or eliminate the element of Kickback Danger Zone surprise. Sudden surprise contributes to accidents. X7503361900 © 08/23 ECHO Incorporated...
  • Page 13: 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 14 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 X7503361900 © 08/23 ECHO Incorporated...
  • Page 15 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 16 18. When transporting your chainsaw, use the appropriate guide bar cover. X7503361900 © 08/23 ECHO Incorporated...
  • Page 17 Always keep exhaust area clear of flammable debris during  transportation or when storing, otherwise serious property damage or personal injury may result. Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. X7503361900 © 08/23 ECHO Incorporated...
  • Page 18 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. X7503361900 © 08/23 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 20: Description

    Shindaiwa dealer. Images shown below are for example only. Those on your unit might appear slightly different. S16A0CD375 S91PX57CQ Manual shows other combinations. Manuel montre d' autres combinaisons. X7503361900 © 08/23 ECHO Incorporated...
  • Page 21 • CHAIN BRAKE - Stops the saw chain. • DRIVE SPROCKET - Drives the saw chain. • CLUTCH - Turns drive sprocket when engine rpm is fast enough to provide the power needed for cutting. X7503361900 © 08/23 ECHO Incorporated...
  • Page 22: Contents

    Install guide bar, tip guard, and saw chain as follows. Momentary STOP Switch automatically returns to RUN position. Engine can start unintentionally. Always remove spark plug lead from spark plug before assembling or performing maintenance procedures. Serious personal injury can result. X7503361900 © 08/23 ECHO Incorporated...
  • Page 23 Guide Bar and Saw Chain Installation/Removal Release the cylinder cover latches (A) by inserting the screw driver end of the supplied tool (B) and lifting the latch tip as shown. Remove the cylinder cover (C). Remove spark plug lead. X7503361900 © 08/23 ECHO Incorporated...
  • Page 24 (D) finger tight. Adjust saw chain tension, as instructed in “Adjusting Chain Tension”. Adjusting Chain Tension Always loosen sprocket guard nuts before turning the chain tension adjuster, otherwise the sprocket guard and tensioner will be damaged. X7503361900 © 08/23 ECHO Incorporated...
  • Page 25 Tighten sprocket guard nuts to 20-23 N•m (175-200 lbf•in). 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 26: Operation

    Gasoline may contain up to 10% Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol (wood alcohol) is 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.
  • Page 27 Vapors ignited by an ignition source can flash back to the fuel container, resulting in an explosion, fire, serious or fatal injuries, and extensive property damage. X7503361900 © 08/23 ECHO Incorporated...
  • Page 28 (30) days, ninety (90) days when a fuel stabilizer is added. Stored 2-stroke fuel may 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 29: Chain Lubricant

    Oil tank cap • Use bar and chain oil of the following grades: • SAE No. 30..in summer • SAE No. 10..in winter or when cutting resinous trees. • When refueling, also refill chain oil. X7503361900 © 08/23 ECHO Incorporated...
  • Page 30: Winter Operation

    (A) from warm weather position (B), and install into cold weather position (C). Note: For operation at normal temperature (5°C [41°F]) return the plug to its original position. To prevent over heating of the engine. X7503361900 © 08/23 ECHO Incorporated...
  • Page 31: Starting Cold Engine

    Do not start engine before chain brake is locked. ◆ Securely hold the chainsaw and pull starter handle several times until first starting sound. Push choke control knob (B) all the way IN (OPEN choke position). X7503361900 © 08/23 ECHO Incorporated...
  • Page 32: Starting Warm Engine

    Make sure the bar and chain are free from any obstruction when starting the chainsaw. Move chain brake lever fully Chain Brake Locked FORWARD to LOCK chain brake before starting. Confirm there is fuel and chain oil in the tanks. X7503361900 © 08/23 ECHO Incorporated...
  • Page 33: Running

    Note: If saw chain moves adjust carburetor according to “Carburetor Adjustment” instructions in this manual, or see your dealer. After engine starts, allow it to return to idle and warm up before using. X7503361900 © 08/23 ECHO Incorporated...
  • Page 34: Stopping

    Note: If engine does not stop, pull choke control knob out fully to stop engine. Note: Return the unit to your authorized dealer to check and repair stop switch before starting the engine again. X7503361900 © 08/23 ECHO Incorporated...
  • Page 35: Checking Chain Tension

    This chainsaw 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 36 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 37 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! X7503361900 © 08/23 ECHO Incorporated...
  • Page 38 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 39 • 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 X7503361900 © 08/23 ECHO Incorporated...
  • Page 40: Guide Bar And Chain Combination

    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 41: Guide Bar

    Wear gloves to protect hands from sharp edges and hot surfaces. Operating a poorly maintained unit can result in serious injuries to operator or bystanders. Always follow all maintenance instructions as written, otherwise serious personal injury can result. X7503361900 © 08/23 ECHO Incorporated...
  • Page 42: Skill Levels

    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 Maintenance Intervals Momentary STOP Switch automatically returns to RUN position.
  • Page 43 MAINTENANCE PROCEDURE NOTES: Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity. Model dependent * Replacement is recommended based on the finding of damage or wear during inspection. X7503361900 © 08/23 ECHO Incorporated...
  • Page 44: Carburetor Adjustment

    CCW until the saw chain stops moving. Turn screw out, CCW, an additional 1/4 turn. When carburetor adjustment is completed, the saw chain should not move at idle, otherwise serious personal injury can result. X7503361900 © 08/23 ECHO Incorporated...
  • Page 45: Air Filter

    0.65 mm (0.026 in.). • Fastening torque: 13-17 N•m (110-150 lbf•in). 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 46: 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 47: 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 • Check sprocket when you install new chain. Replace it if worn. X7503361900 © 08/23 ECHO Incorporated...
  • Page 48: Cooling System Cleaning

    USDA Forest Service Regulation SAE J335. Check with your local or state authorities for specific regulations in your area. Failure to follow these requirements is a violation of the law. X7503361900 © 08/23 ECHO Incorporated...
  • Page 49: Spark Arrester Screen

    Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder. X7503361900 © 08/23 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. X7503361900 © 08/23 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. X7503361900 © 08/23 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. X7503361900 © 08/23 ECHO Incorporated...
  • Page 53: Troubleshooting

    Clean or replace runs, but Fuel filter Contaminants Replace filter or dies Fuel filter dirty or residue in fuel replace fuel Engine Fuel vent Contaminated Fuel vent Clean or replace does not plugged fuel accelerate properly X7503361900 © 08/23 ECHO Incorporated...
  • Page 54: Storage

    • Inspect and adjust every part of the chain saw. • Completely clean every part and repair if necessary. • Apply thin coating of oil on metal parts to prevent rust. • Remove chain and guide bar. X7503361900 © 08/23 ECHO Incorporated...
  • Page 55: Specifications

    40.0 mm (1.570 in.) Stroke 27.4 mm (1.08 in.) Compressions ratio 7.25:1 Carburetor Diaphragm type NGK BPMR8Y Spark plug Gap 0.65 mm (0.026 in.) Fuel tank capacity 280 mL (9.47 US. fl. oz.) Fuel 50:1 X7503361900 © 08/23 ECHO Incorporated...
  • Page 56: Product Registration

    Please go to http://www.shindaiwa-usa.com 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 57 335S PRODUCT REGISTRATION X7503361900 © 08/23 ECHO Incorporated...
  • Page 58 NOTES 335S NOTES X7503361900 © 08/23 ECHO Incorporated...
  • Page 59 335S NOTES X7503361900 © 08/23 ECHO Incorporated...
  • Page 60 C93712001001 - C93712999999 C93813001001 - C93813999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 -usa www.shindaiwa .com...

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