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Hitachi Koki CS 51EA Handling Instructions Manual

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Chain Saw

Model CS 51EA
Handling instructions
Note:
Before using this machine, carefully read through these HANDLING INSTRUCTIONS
to ensure effi cient, safe operation. It is recommended that these INSTRUCTIONS be
kept readily available as an important reference when using this machine.

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Summary of Contents for Hitachi Koki CS 51EA

  • Page 1: Chain Saw

    Chain Saw Model CS 51EA Handling instructions Note: Before using this machine, carefully read through these HANDLING INSTRUCTIONS to ensure effi cient, safe operation. It is recommended that these INSTRUCTIONS be kept readily available as an important reference when using this machine.

  • Page 2: Table Of Contents

    English MEANINGS OF SYMBOLS NOTE: Some units do not carry them. Symbols WARNING The following show symbols used for the machine. Be sure that you understand their meaning before use. It is important that you read, fully understand and observe following safety precautions...

  • Page 3: What Is What

    English WHAT IS WHAT? Throttle lever: Device activated by the operatorʼs fi nger, for controlling the engine speed. 2. Throttle lever lockout: Device that prevents the accidental operation of the throttle lever until manually released. 3. Stop switch: Device for allowing the engine to be started or stopped.
  • Page 4 If situations occur which are not covered in this manual, take care and ○ Store unit/machine and fuel in area where fuel vapors cannot use common sense. Contact HITACHI dealer if you need assistance. reach sparks or open fl ames from water heaters, electric motors Pay special attention to statements preceded by the following words: or switches, furnaces, etc.

  • Page 5: Specifications

    English SPECIFICATIONS ○ Code “CS” of model name means “Chain saw” Model CS51EA (40S) CS51EA (45S) CS51EA (50S) Type of equipment Chain saw, portable Engine Size (cm 50.1 Spark Plug NGK BPMR-7A Fuel Tank Capacity (cm Chain Oil Tank Capacity (cm Dry Weight (kg) (Without guide bar and chain) Chain pitch (mm)

  • Page 6: Operating Procedures

    (Fig. 6, 7) ○ Use genuine two-cycle oil or use a mix between 25:1 to 50:1, please consult the oil bottle for the ratio or HITACHI dealer. ○ If genuine oil is not available, use an anti-oxidant added quality oil expressly labeled for air-cooled 2-cycle engine use (JASO FC GRADE OIL or ISO EGC GRADE).
  • Page 7 English Fig. 9 Fig. 11 Chain oil (Fig. 9) Set ignition switch (18) to ON position. (Fig. 12) Fill up with chain oil (16). Always use good quality chain oil. When the engine is running, the chain oil is automatically discharged. NOTE When pouring fuel (15) or chain oil (16) into the tank, place the unit with cap side up.
  • Page 8 English 4. Pull recoil starter briskly, taking care to keep the handle in your WARNING grasp and not allowing it to snap back. (Fig. 15) Do not stand in-line with chain when cutting. BASIC TECHNIQUES FOR MAKING FELLING, LIMBING AND BUCKING CUTS The intention of the following information is to provide you with the general introduction to wood cutting techniques.
  • Page 9 English ○ In case the chain locked, immediately release the throttle lever. If the throttle lever keeps rotating at high speed with the chain locked, the clutch will overheat causing trouble. NOTE Always keep the spiked bumper face to a tree, because the chain may suddenly be drawn into a tree.

  • Page 10: Maintenance

    English CROSS CUTTING LOGS, PRESSURE ON TOP 34. Relieving cut Take a fi rm stance. Begin with an upper cut. Do not cut too deeply, 35. Cross cut about 1/3 of the log diameter is enough. Finish with a bottom cut. 36.
  • Page 11 NOTE Do not touch the High speed adjustment (H) and the Low speed adjustment (L). Those are only for HITACHI dealer. If you rotate them, It will cause a serious damage to the machine. Fig. 33 Air fi lter (Fig. 31) The air fi...
  • Page 12 English Chain oil fi lter (Fig. 37) For long-term storage Remove the oil fi lter and thoroughly wash it in solvent. Drain all fuel from the fuel tank. Start and let engine run until it stops. Repair any damage which has resulted from use. Clean the unit with a clean rag, or the use of high pressure air hose.
  • Page 13 English Maintenance schedule Below you will fi nd some general maintenance instructions. For further information please contact HITACHI dealer. Daily maintenance ○ Clean the exterior of the unit. ○ Clean the chain oil fi lter port. ○ Clean the groove and oil fi lter port in the guide bar.
  • Page 15 FUEL PIPE 2.5 × 4 × 90 GUIDE PLATE (B) AIR DEFLECTOR PRIMING PUMP COMP. RECOIL STARTER DECOMP. OIL GROMMET (A) HITACHI LABEL SPARK PLUG BPMR7A FUEL PIPE CHAIN COVER INTAKE PACKING (C51) BOLT WASHER D5 COMBI BOX SPANNER INTAKE (C51) OIL FILTER CAB.
  • Page 16 Shinagawa Intercity Tower A, 15-1, Konan 2-chome, Minato-ku, Tokyo, Japan Code No. E99245511 G Printed in China...