Shindaiwa DH254 Owner's/Operator's Manual
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Shindaiwa DH254 Owner's/Operator's Manual

Shindaiwa DH254 Owner's/Operator's Manual

Shindaiwa hedge trimmer owner's/operator's manual
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X7502864301
06/10
SHINDAIWA OWNER'S/OPERATOR'S MANUAL
DH254 HEDGE TRIMMER
WARNING!
Minimize the risk of injury to yourself and others! Read this manual
and familiarize yourself with the contents. Always wear eye and hear-
ing protection when operating this unit.

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  • Page 1 X7502864301 06/10 SHINDAIWA OWNER’S/OPERATOR’S MANUAL DH254 HEDGE TRIMMER WARNING! Minimize the risk of injury to yourself and others! Read this manual and familiarize yourself with the contents. Always wear eye and hear- ing protection when operating this unit.

  • Page 2: Table Of Contents

    If you have questions regarding your DH254 hedge trimmer, or if you do not understand something in this manual, your Shindaiwa dealer will be glad to assist you. You may also contact Shindaiwa, at the address printed on the back of this manual.

  • Page 3: General Safety Instructions

    General Safety Instructions Work Safely Shindaiwa hedge trimmers operate at very high speeds and can do serious damage or injury if they are misused or abused. Never allow a person without training or instruction to operate your unit! WARNING! Never make unauthorized attach- ment installations.
  • Page 4 Always use genuine Shindaiwa parts and accessories when repair- ing or maintaining this machine. WARNING! Inspect front and rear handles for damaged or loose attachments before use. NEVER operate a hedge trimmer with damaged or loose handles. WARNING! ■ Never smoke or light fires near the hedge trimmer.

  • Page 5: Safety And Equipment Labels

    Labels: Make sure all information labels are undam- Caution Label aged and readable. Immediately replace damaged or missing information labels. New labels are available from your local authorized Shindaiwa dealer. DH254-24 4-cycle, horizontal cylinder, air cooled 34mm x 27mm (1.34 x 1.06 in) 6.0 kg (13.2 lb)

  • Page 6: Emission Control

    Emission Control (Exhaust & Evaporative) EPA 2010 and Later and/or C.A.R.B. TIER III The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to California models only.

  • Page 7: Assembly

    Assembly For normal cutting, Shindaiwa strongly recommends the blade stiffener be installed. In extreme conditions, such as commercial cutting, or when cutting thick and/ or dense branches, efficiency may be increased by trimming without the blade stiffener. Tools required: 8 mm socket and extension, 4 mm hex wrench WARNING! Hedge Clipper blades are very sharp.

  • Page 8: Mixing Fuel

    ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345/FD certified oil will void the engine warranty. Shindaiwa Red Armor engine oil may be mixed at 50:1 ratio for application in all Shindaiwa engines sold in the past, re- gardless of ratio specified in those manuals. NOTE:...

  • Page 9: Filling The Fuel Tank

    IMPORTANT! Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabilizer is added. Use of unmixed, improp- erly mixed, or stale fuel, may cause hard starting, poor performance, or severe engine damage and void the product warranty.

  • Page 10: Starting The Engine

    (shown). Pull the starter handle slowly toward you until you feel the starter mechanism engage. Start the trimmer by pulling the starting handle rapidly outward. CAUTION! The recoil starter can be easily damaged by abuse! ■...

  • Page 11: Stopping The Engine

    When the motor starts... Open the choke by moving the choke lever backward (toward the fuel tank). If the engine does not continue to run, repeat the appropriate cranking proce- dures for a cold or warm engine.When the engine starts, clear excess fuel from the combustion chamber by accelerating the engine several times with the throttle lever.

  • Page 12: Maintenance And Adjustments

    Shindaiwa warranty. Air Filter The H4 engine that powers your Shindaiwa model is a hybrid 4-stroke engine. As a hybrid, the engine is lubricated by oil mixed with the gasoline and air from the carbure- tor that moves through and around the internal parts of the engine in a similar way that a 2-stroke engine is lubricated.

  • Page 13: Hour Maintenance

    Throttle Cable Free Play If the unit does not return to idle speed or doesen't reach full rpm, the throttle trigger free play may need to be adjusted as follows: Measure free play at the end of the should be approximately 5-7 mm (0.2-0.275"). See Figure 14. If adjustment is necessary, remove the air cleaner cover by loosening the two thumbscrews.
  • Page 14 Use a wire hook to extract the fuel filter from inside the fuel tank. (Figure 19). Inspect the fuel filter element. If it shows signs of contamination from debris, replace it with a genuine Shindaiwa replacement fuel filter element. Before reinstalling the filter, inspect the fuel line. If you discover damage or deterio- ration, the unit should be removed from service unitl it can be inspected by a Shindaiwa-trained service technician.
  • Page 15 Performing a valve adjustment incorrectly may cause hard starting and/or can damage the unit. Refer to the Service Manual for complete valve adjustment procedure and torque specifications. ■ If you are unfamiliar with this engine or uncomfortable with this procedure, Consult with an authorized Shindaiwa servic- ing dealer. Every 100 Hours...
  • Page 16 Valve Adjustment Remove cylinder cover, rocker arm cover, and set piston at TDC-compression. Loosen adjuster locknut so that the 2.5 mm Allen socket head adjustment screw can turn freely. Insert feeler gauge .004 (0.10 mm) for both intake and exhaust; between valve stem tip and rocker arm.

  • Page 17: Carburetor Adjustment

    1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized Shindaiwa service dealer. If the engine is adjusted for operation above 1,100 feet ASL, the carburetor must be re-adjusted when operating the engine below 1,100 feet ASL, otherwise severe engine damage may result.

  • Page 18: Long Term Storage

    WARNING! The cutters must NEVER engage at engine idle speeds! If the idle speed can- not be adjusted by the above procedure, return the trimmer to your Shindaiwa dealer for inspection. Long Term Storage...

  • Page 19: Troubleshooting Guide

    Valve clearance too tight. servicing dealer. Adjust valves. Valve clearance too loose. ENGINE DOES NOT START Possible Cause Consult with an authorized Shindaiwa servicing dealer. Faulty recoil starter. Fluid in the crankcase. Internal damage. Tighten and re-test. Loose spark plug.
  • Page 20 89 or higher mixed with an air cooled engine oil that meets or exceeds ISO-L-EGD and/or JASO FD classifi ed oils at 50:1 gasoline/oil ratio. Consult with an authorized Shindaiwa servicing dealer. Consult with an authorized Shindaiwa servicing dealer.
  • Page 21 Consult with an authorized Shindaiwa servicing dealer. Adjust idle. Check Specifi cations page for correct idle speed. Consult with an authorized Shindaiwa servicing dealer. Adjust idle. Check Specifi cations page for correct idle speed. Replace spring/shoes as required, check idle speed.

  • Page 22: Warranty Statement

    The owner shall demonstrate reasonable care and use, and follow preventative maintenance, storage, fuel and oil usage as prescribed in the operator’s manual. Should a product difficulty occur, you must, at your expense, deliver or ship your Shindaiwa unit to an authorized Shindaiwa servicing dealer for warranty repairs (within the applicable warranty period), and arrange for pick-up or return of your unit after the repairs have been made.
  • Page 23 89 octane or higher. Gasohol which contains a maximum 10% ethanol (grain alcohol) or 15% MTBE (methyl/tertiary/butyl/ether) is also approved. The prescribed mixing ratio of gasoline to oil is listed on the Shindaiwa oil label and covered in your operator’s manual.
  • Page 24 Authorized Dealer within 100 miles, ECHO Inc. will pay to ship the unit to the nearest authorized dealer. If you have questions regarding your warranty coverage, you should contact ECHO Inc. at 1-800-673-1558, web site WWW.ECHO-USA.COM or contact Shindaiwa at 1-877-986- 7783, web site WWW.SHINDAIWA.COM.
  • Page 25 NOTES:...
  • Page 26 NOTES:...
  • Page 27 NOTES:...

  • Page 28: Servicing Information

    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, Type and Serial Number of the unit with you. You can find these numbers on the engine. For future reference, write them in the space provided below.

This manual is also suitable for:

X7502864301Dh254-24Dh254-30

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