Chain Saw Model CS 51EA Handling instructions Note: Before using this machine, carefully read through these HANDLING INSTRUCTIONS to ensure efficient, safe operation. It is recommended that these INSTRUCTIONS be kept readily available as an important reference when using this machine. 000Book̲CS51EA̲Eng.
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 the following safety precautions and Emergency stop warnings. Careless or improper use of the unit may cause serious or fatal injury. Read, understand and follow all warnings and instructions in this manual and on the unit.
English WHAT IS WHAT? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. Throttle lever: Device activated by the operatorʼs finger, for controlling the engine speed. Throttle lever lockout: Device that prevents the accidental operation of the throttle lever until manually released. Stop switch: Device for allowing the engine to be started or stopped. Oil tank cap: For closing the oil tank. Recoil starter: Pull handle to start the engine.
English ○ ○ ○ ○ ○ Make sure the automatic oiler is working. Keep the oil tank filled with clean oil. Never let chain run dry on the bar. All chain saw service, other than the items listed in the operatorʼs/ ownerʼs manual, should be performed by competent chain-saw service personnel.
English SPECIFICATIONS ○ Code “CS” of model name means “Chain saw” Model CS51EA (40S) CS51EA (45S) Type of equipment CS51EA (50S) Chain saw, portable Engine Size (cm3) 50.1 Spark Plug NGK BPMR-7A Fuel Tank Capacity (cm3) 530 Chain Oil Tank Capacity (cm3) 270 Dry Weight (kg) (Without guide bar and chain) 5.1 Chain pitch (mm) 8.26 Chain gauge (mm) 1.
English 3. Install the guide bar (5) onto the bolts (6), then push it toward the sprocket (7) as far as it will go. 10 11 4 7 8 5 6 9 CAUTION PROPER TENSION IS EXTREMELY IMPORTANT 8. Raise the bar end and securely tighten the guide bar clamp nuts with the combi box spanner. (Fig. 7) 9. A new chain will stretch so adjust the chain after a few cuts and watch chain tension carefully for the first half hour of cutting. NOTE Check the chain tension frequently for optimum performance and durability.
English 2 15 16 Fig. 9 Fig. 11 Chain oil (Fig. 9) 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. (Fig. 9) 1. Set ignition switch (18) to ON position. (Fig. 12) 18 ADJUSTMENT OF CHAIN OIL SUPPLY The chain oil quantity discharged through the lubrication system is adjusted to the maximum in the factory.
English 4. Pull recoil starter briskly, taking care to keep the handle in your grasp and not allowing it to snap back. (Fig. 15) WARNING 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.
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. ○ FELLING Felling is more than cutting down a tree. You must also bring it down as near to an intended place as possible without damaging the tree or anything else.
English CROSS CUTTING LOGS, PRESSURE ON TOP Take a firm stance. Begin with an upper cut. Do not cut too deeply, about 1/3 of the log diameter is enough. Finish with a bottom cut. The saw cuts should meet. (Fig. 24) 30 28 29 31 32 34. 35. 36. 37. 38. 39. Relieving cut Cross cut Pressure on bottom Tension side Pressure side Relative depth of saw cuts THICK LOG, LARGER THAN GUIDE BAR LENGTH Begin by cutting on the opposite side of the log. Pull the saw towards you, followed by previous procedure.
English Idle speed adjustment (T) Check that the air filter is clean. When the idle speed is correct, the cutting attachment will not rotate. If adjustment is required, close (clockwise) the T-screw, with the engine running, until the cutting attachment starts to rotate. Open (counter-clockwise) the screw until the cutting attachment stops. You have reached the correct idle speed when the engine runs smoothly in all positions well below the rpm when the cutting attachment starts to rotate.
English Chain oil filter (Fig. 37) Remove the oil filter and thoroughly wash it in solvent. For long-term storage 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. Put a few drops of two-cycle engine oil into the cylinder through the spark plug hole, and spin the engine over several times to distribute oil. Cover the unit and store it in a dry area.
English Maintenance schedule Below you will find some general maintenance instructions. For further information please contact HITACHI dealer. Fig. 43 4) Round off front corner to maintain original shape of depth gauge after using depth gauge tool. Always follow the recommended depth gauge setting found in the maintenance or operator manual for your saw. (Fig. 44) Fig. 44 GENERAL INSTRUCTIONS FOR FILING CUTTERS File (60) cutter on one side of the chain from the inside out. File on forward stroke only.
000Book̲CS51EA̲Eng.
ITEM NO. PART NAME Q’TY 1 2 3 4 5 6 7 8 9 10 11 12 START LABEL CLEANER COVER (C51) SHUTTER PLATE COVER SET BOLT CYLINDER COVER (C51) CLEANER KNOB KNOB PACKING CLEANER ELEMENT (B) CLEANER ELEMENT (A) NUT M6 BOLT WASHER M6 SPRING HOLDER HEX. SOCKET HD. BOLT (W/FLANGE) M6 × 20 ANTIVIBRATION SPRING DAMPER SET BOLT SEAL LOCK SCREW M4 × 10 SCAVENGING COVER (B) COVER PACKING (C51) EXHAUST PIPE (C51) MUFFLER GAUZE (C51) TAPPING SCREW (W/FLANGE) D5 × 25 FRONT HANDLE TAPPING SCREW (W/FLANGE) D5 × 20 HEX.
Shinagawa Intercity Tower A, 15-1, Konan 2-chome, Minato-ku, Tokyo, Japan 109 Code No. E99245511 G Printed in China 000Book̲CS51EA̲Eng.
