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Shindaiwa 340s Operator's Manual

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Operator's
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.
X7503275905
© 10/23 ECHO Incorporated
Manual
340s
Chainsaw

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Summary of Contents for Shindaiwa 340s

  • Page 1 Operator’s Manual 340s Chainsaw 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.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 340S TABLE OF CONTENTS Introduction......................... 3 Servicing Information....................3 Parts and Serial Number..................3 Service ....................... 4 Consumer Product Support................4 Product Registration................... 4 Additional Literature ................... 4 Safety ......................... 5 Manual Safety Symbols and Important Information ........... 5 International Symbols..................

  • Page 3: Introduction

    SERVICING INFORMATION Parts and Serial Number Genuine Shindaiwa Parts and Assemblies for your Shindaiwa products are available only from an Authorized Shindaiwa Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you.

  • Page 4: Service

    Service Service of this product during the warranty period must be performed by an Authorized Shindaiwa Service Dealer. For the name and address of the Authorized Shindaiwa Service Dealer nearest you, ask your retailer or call: 1-877-986-7783. Dealer information is also available on www.shindaiwa- usa.com.

  • Page 5: Safety

    340S SAFETY SAFETY Manual Safety Symbols and Important Information Throughout this manual and on the product itself, you will find safety alerts and helpful, informational messages preceded by symbols or key words. The following is an explanation of those symbols and key words and what they mean to you.

  • Page 6: International Symbols

    SAFETY 340S International Symbols Symbol Description Symbol Description WARNING! Read and follow all safety precautions in Carburetor the instruction Adjustment - manual. Failure High Speed to follow Mixture instructions could result in serious personal injury. Wear Eye, Ear, Carburetor and Head Adjustment - Protection.
  • Page 7 340S SAFETY Symbol Description Symbol Description Chain Brake 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.

  • Page 8: Personal Condition And Safety Equipment

    SAFETY 340S 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. Users of this product risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed.
  • Page 9 340S SAFETY Hand Protection Wear sturdy, no-slip, rubber work gloves to improve your grip on the handles. 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.
  • Page 10 SAFETY 340S The components of this machine generate an electromagnetic field during operation, which can interfere with some pacemakers. 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.
  • Page 11 340S SAFETY Repetitive Stress Injuries (RSI) It is believed that overusing the muscles and tendons of the fingers, hands, arms, and shoulders may cause soreness, swelling, numbness, weakness, and extreme pain in those areas. Certain repetitive hand activities may put you at a high risk for developing a Repetitive Stress Injury (RSI).

  • Page 12: Rules For Safe Operation

    SAFETY 340S Rules for Safe Operation Kickback Safety Precautions for Chainsaw Users KICKBACK may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.

  • Page 13: Correct Use Of Chain Brake

    340S SAFETY Keep a good firm grip on the saw with both hands, the right hand on the rear handle, and the left hand on the front handle, when the engine is running. Use a firm grip with thumbs and fingers encircling the chainsaw handles.
  • Page 14 SAFETY 340S Testing the Brake • Start the engine on a solid level surface and run at a fast idle until warm. • Hold the saw firmly by the handles and accelerate the engine to a fast idle. • Slowly operate the chain brake lever while holding the saw firmly on the ground.
  • Page 15 340S SAFETY ANSI Standard B175.1 and CSA Z62.1.3 stipulate that the brake shall stop the chain 0.12 seconds at an engine speed of 13,500 RPM. It is the 35 cm responsibility of the owner/ (14 in.) operator to ensure that the...
  • Page 16 SAFETY 340S 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. Other Safety Precautions Do not operate a chainsaw with one hand! Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation.
  • Page 17 340S SAFETY 16. Do not operate a chainsaw in a tree unless you have been specifically trained to do so. 17. All chainsaw service, other than items listed in the operator’s manual maintenance instructions, should be performed by competent service personnel.
  • Page 18 SAFETY 340S 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.

  • Page 19: Emission Control (Exhaust & Evaporative)

    340S EMISSION CONTROL EMISSION CONTROL (EXHAUST & EVAPORATIVE) CARB and EPA Emissions Control Information The emission control system for the engine is EM (engine modification) and, if the second to last character of the Engine Family on the Emission Control Information label (sample below) is “B”, “C”, “K”, or “T”, the emission...

  • Page 20: Description

    Locate the safety decal(s) or etching(s) on your unit. Make sure they are legible, and that you understand and follow the instructions. If any cannot be read, replacements can be ordered from your Shindaiwa dealer. Images shown below are for example only. Those on your unit might appear slightly different.
  • Page 21 340S DESCRIPTION Chain Brake Lever / Front Hand Guard Spark Arrester Muffler or Spark Arrester Muffler with Catalyst Saw Chain Guide Bar Chain Catcher Chain Tension Adjuster Chain Brake / Sprocket Guard Rear Hand Guard Purge Pump Choke Control Knob...

  • Page 22: Contents

    Due to packaging restrictions, some assembly may be necessary. After opening the carton, check for damage. Immediately notify your retailer or Shindaiwa Dealer of damaged or missing parts. Use the contents list to check for missing parts. Power Head...
  • Page 23 340S ASSEMBLY Instructions to Install Optional Kick Guard to Bar Tools Needed: Two 11 mm (7/16 in.) Wrenches. Install bolt (A) in rear hole (B) of kick guard and through front hole (C) in guide bar. IMPORTANT: Dimple (D) in tip guard must engage recess (E) in guide bar.
  • Page 24 ASSEMBLY 340S 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. Install the sprocket guard over the guide bar studs.
  • Page 25 340S ASSEMBLY Hold the bar nose up, and turn the adjuster screw (A) clockwise until chain contacts underside of the bar. Tighten nuts with the bar nose held up. Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots.

  • 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 2-stroke engine oil, such as Shindaiwa branded 2-stroke oils, meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must be used.
  • Page 27 AVOID repeated or prolonged skin contact. ◆ AVOID inhaling oil mists or vapors. ◆ Shindaiwa branded 2-stroke oils may be mixed at 50:1 ratio for application in all Shindaiwa engines sold in the past, regardless of ratio specified in those manuals. Handling Fuel Fuel is VERY flammable.
  • Page 28 OPERATION 340S Gasoline vapor is heavier than air, and can travel along the ground to nearby sources of ignition such as electrical motors, pilot lights, and hot or running engines. 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.

  • Page 29: Chain Lubricant

    340S OPERATION Used oil and gasoline, and soiled towels are hazardous waste materials. Disposal laws vary by locality. Chain Lubricant Proper lubrication of the chain while in operation reduces friction between the chain and the guide bar to a minimum and assures a longer service life.

  • Page 30: Winter Operation

    OPERATION 340S Operation of this equipment may create sparks that can start fires around dry vegetation. This unit is equipped with a spark arrester to prevent discharge of hot particles from the engine. Metal cutters can also create sparks if the cutter strikes rocks, metal, or other hard objects.
  • Page 31 340S OPERATION Move stop switch (A) UP to “RUN” position. Push purge pump (B) 3 to 4 times or until fuel is visible in purge pump. Pull choke control knob all the way OUT (CLOSED [ ] choke position). After choke control knob is pulled and then knob is ◆...

  • Page 32: Starting Warm Engine

    OPERATION 340S Pull starter handle to start the engine. Note: Do not pull starter rope out to the 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.
  • Page 33 340S OPERATION Move stop switch (A) UP to “RUN” position. Securely hold the chainsaw as shown and pull starter handle. Choke may be used if necessary, but after first starting sound, squeeze throttle trigger to release choke and return engine to idle.

  • Page 34: Running

    OPERATION 340S 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. After engine starts, allow it to return to idle and warm up before using.

  • Page 35: Stopping

    340S OPERATION Stopping Release throttle trigger and allow engine to idle. Move stop switch (A) DOWN to “STOP” position. Note: If engine does not stop, pull choke control knob out fully to stop engine. Note: Return the unit to your...

  • Page 36: Cutting Instructions

    OPERATION 340S Cutting Instructions General 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.
  • Page 37 340S OPERATION Start the engine, see that it is running properly. Squeeze the trigger to open the throttle wide open and start the cut. If the chain is properly sharpened, the cutting should be relatively effortless. It is not necessary to press down hard to make the saw cut.
  • Page 38 OPERATION 340S Felling the Tree 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! Before cutting, clear the area 3 m (10 ft.)
  • Page 39 340S OPERATION To fell big trees with a diameter exceeding twice the bar length, start the notching cuts from one side and draw the saw through to the other side of the notch. Start the back cut on one side of the tree, pivoting the saw through to form the desired hinge on that side.

  • Page 40: Guide Bar And Chain 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. Guide Bar and Chain Combination The following combinations are recommended for model 340s. Guide Bar Saw Chain Shindaiwa Part Length (in.) cm...

  • Page 41: Kick Guard Tm

    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. Guide Bar (Low-kickback) Replacement guide bars.

  • Page 42: Maintenance

    MAINTENANCE 340S MAINTENANCE 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.

  • Page 43: Maintenance Intervals

    340S MAINTENANCE Maintenance Intervals Units equipped with a Momentary STOP Switch automatically return to RUN position. Engine can start unintentionally. Always remove spark plug lead from spark plug before assembling or performing maintenance procedures, otherwise serious personal injury can result.

  • Page 44: Carburetor Adjustment

    MAINTENANCE 340S REQUIRED MAINTENANCE COMPONENT OR SYSTEM SKILL PROCEDURE LEVEL Fuel Filter Inspect * Fuel Cap Gasket Inspect * Spark Plug Inspect / Clean / Replace * Muffler Spark Arrester Inspect / Clean / Replace * Cylinder Exhaust Port Inspect / Clean / De-carbon...
  • Page 45 340S MAINTENANCE proper engine operation above 335 m (1,100 ft.) ASL the carburetor might need to be adjusted by an authorized service dealer. If the engine is adjusted for operation above 335 m (1,100 ft.) ASL, the carburetor must be readjusted when operating the engine below 335 m (1,100 ft.) ASL, otherwise severe engine damage can result.

  • Page 46: Air Filter

    MAINTENANCE 340S Air Filter Check before every use. CLOSE choke ( Press hand guard FORWARD and LOCK chain brake. Release the cylinder cover latches (C) and remove cylinder cover (A) and air filter (B). Lightly brush dust off air filter, or clean with compressed air, or replace the air filter.

  • Page 47: Fuel Filter

    340S MAINTENANCE Fuel Filter • Check periodically. • Do not allow dust to enter fuel tank. • A clogged filter (A) will cause difficulty in starting engine or abnormalities in engine performance. Pull Fuel Filter (A) out through gas port, and inspect Fuel Filter.

  • Page 48: Guide Bar

    MAINTENANCE 340S Do not remove the wire coil clamp to remove the Oil Filter. Pinch the Oil Filter with the fingers on one hand and the line with the other hand. Pull and twist slightly to separate. Install the new Oil Filter (a) with the reverse action.

  • Page 49: Cooling System Cleaning

    340S MAINTENANCE Cooling System Cleaning • Check periodically. Cylinder fins • Clogged fins will result in poor engine cooling. Remove cylinder cover and starter. Use compressed air or wooden tool to remove dirt and dust from between fins to let cooling air pass easily.

  • Page 50: Spark Arrester Screen

    MAINTENANCE 340S Spark Arrester Screen Carbon deposits in muffler will cause drop in engine output and overheating. Spark arrester screen must be checked periodically. Remove air cleaner cover and remove spark plug lead. Remove spark arrester cover (C) and screen (B) from muffler (A) body.

  • Page 51: Setting The Saw Chain

    340S MAINTENANCE Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port. Install muffler. Tighten muffler mounting bolts (or nuts) to 7 - 9 N•m (60- 80 lbf•in). Install cylinder cover and attach spark plug lead.
  • Page 52 MAINTENANCE 340S • Drive link serves to remove sawdust from the groove of the guide bar. Keep the lower edge of the drive link sharp where indicated. Sharpen lower edge Setting the Saw Chain • For setting saw chain, round file (5/32 in.
  • Page 53 340S MAINTENANCE • Be sure 1/5th of the file diameter remains above cutter edge. 1/5th • Be sure to round off the front edge of the depth gauge. • Properly filed cutters are 80° shown in illustration. • When setting of the chain is...

  • Page 54: Troubleshooting

    TROUBLESHOOTING 340S TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Status Cause Remedy Fuel strainer or Clean or replace Fuel at No fuel at fuel line carburetor carburetor See your dealer obstructed No fuel at Carburetor See your dealer cylinder OPEN choke...
  • Page 55 340S TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Status Cause Remedy Plug dirty or Clean and adjust Spark plug Normal wear Engine worn or replace runs, but Improper Carburetor Vibration Adjust dies adjustment Extended Cooling Cooling operation in system dirty...

  • Page 56: Storage

    STORAGE 340S STORAGE Storage After Use Units equipped with a Momentary STOP Switch automatically return 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.

  • Page 57: Specifications

    340S SPECIFICATIONS SPECIFICATIONS Model 340s Length 396 mm (15.6 in.) Width 232 mm (9.1 in.) Height 273 mm (10.7 in.) Dry weight 4.0 kg (8.8 lb.) Without chain and guide bar Engine Air-cooled two-stroke single cylinder Displacement 34.0 mL (2.07 in.

  • Page 58: Product Registration

    PRODUCT REGISTRATION Thank you for choosing Shindaiwa Power Equipment 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 59 340S PRODUCT REGISTRATION X7503275905 © 10/23 ECHO Incorporated...
  • Page 60 C68215001001 - C68215999999 C70515001001 - C70515999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 -usa www.shindaiwa .com...

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