Chain Saw Model CS 40EA 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. 000Book̲CS40EA̲Eng.
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 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. Always wear eye, head and ear protectors when using this unit.
12 WHAT IS WHAT? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Throttle trigger: Device activated by the operatorʼs finger, for controlling the engine speed. Throttle trigger lockout (Safety trigger): Device that prevents the accidental operation of the throttle trigger until manually released. Ignition 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.
WARNINGS AND SAFETY INSTRUCTIONS Operator safety ○ Always wear a safety face shield or goggles. ○ Gloves should be used when sharpening chain. ○ Always wear safety protective equipment such as jacket, trousers, gloves, helmet, boots with steel toe-caps and nonslip soles whenever you use a chain saw. For working in trees the safety boots must be suitable for climbing techniques. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair so it is above shoulder length.
WARNING Improper maintenance could result in serious engine damage or in serious personal injury. Transport and storage ○ Carry the unit/machine by hand with the engine stopped and the muffler away from your body. ○ Allow the engine to cool, empty the fuel tank, and secure the unit/machine before storing or transporting in a vehicle. ○ Empty the fuel tank before storing the unit/machine. It is recommended that the fuel be emptied after each use. If fuel is left in the tank, store so fuel will not leak.
SPECIFICATIONS ○ Code “CS” of model name means “Chain saw” Model CS40EA (38) Engine Size (cm3) CS40EA (40) 39.6 Spark Plug NGK BPM-7A or BPMR-7A or equivalent Fuel Tank Capacity (cm3) 380 Chain Oil Tank Capacity (cm3) 240 Dry Weight (kg) (Without guide bar and chain) 4.5 Guide bar length (mm) 380 400 Chain pitch (mm) 8.26 Chain gauge (mm) 1.
5. ASSEMBLY PROCEDURES 1. 2. WARNING Never try to start engine without side case securely fastened. Remove chain bar clamp nuts (1). Remove the side case (2) as pinching the rear part of the side case (2). (Fig. 1) 6. 7. Guide the chain drive links into the bar groove all around the bar. Install the side case (2) onto the bolts (5). Then tighten the clamp nuts (1) temporarily. (Fig. 1) Raise the bar end, and tighten the chain (9) by turning the tension adjustment bolt (10) clockwise.
○ Fuel contains highly flammable and it is possible to get the serious personal injury when inhaling or spilling on your body. Always pay attention when handling fuel. Always have good ventilation when handling fuel inside building. (standard setting turns counter-clockwise 1-1 1/2 from slightly seated) Fig. 7 Fuel ○ Always use branded 89 octane unleaded gasoline. ○ 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.
3. 4. 5. Pull recoil starter briskly, taking care to keep the handle in your grasp and not allowing it to snap back. (Fig. 13) When you hear first ignition, return the choke to run position. (Fig. 12) 18 Pull recoil starter briskly again in the aforementioned manner. (Fig. 13) Fig. 16 Fig. 13 How to confirm: 1) Turn off the engine. 2) Holding the chain saw horizontally, release your hand from the front handle, hit the tip of the guide bar to a stump or a piece of wood, and confirm brake operation.
your right hand on the rear handle, your left hand on the front handle and your thumbs and fingers encircling the handles. Always hold the saw with both hands during operation and cut at high engine speed. 19 Fig. 19 ○ ○ WARNING Do not overreach or cut above shoulder height. Use extra caution when felling, and do not use the saw in a nosehigh position or above shoulder height. Fig.
avoid contacting the log, other limbs or objects with the nose of the guide bar. Be extremely cautious of limbs under tension. They can spring back towards you and cause loss of control resulting in injury. (Fig. 25) 20 21 23 22 Fig. 22 20. 21. 22. 23. Felling direction 45° minimum notch opening Hinge Felling cut Never saw completely through the trunk. Always leave a hinge. The hinge guides the tree. If the trunk is completely cut through, you lose control over the felling direction.
If the log is lying on the ground make a boring cut to avoid cutting into the ground. Finish with a bottom cut. (Fig. 28) Fig. 31 Fig. 28 WARNING KICKBACK DANGER Do not attempt a boring cut if you are not properly trained. A boring cut involves the use of the nose of the guide bar and can result in kickback. CROSS CUTTING LOGS, PRESSURE ON BOTTOM Take a firm stance. Begin with a bottom cut. The depth of the cut should be about 1/3 of the log diameter. Finish with an upper cut. The saw cuts should meet.
Air filter (Fig. 33) The air filter (37) must be cleaned from dust and dirt in order to avoid: ○ Carburetor malfunctions. ○ Starting problems. ○ Engine power reduction. ○ Unnecessary wear on the engine parts. ○ Abnormal fuel consumption. Clean the air filter daily or more often if working in exceptionally dusty areas. Cleaning the air filter Remove the air filter cover (36) and the filter (37). Rinse them in warm soap suds. Check that the filter is dry before reassembly.
Chain oil filter (Fig. 39) Remove the oil filter and thoroughly wash it in solvent. 41 42 43 44 45 46 Fig. 39 48 47 49 Fig. 42 Cleaning the cylinder fins (Fig. 40) When wood chips are caught between cylinder fins (40), the engine may overheat, resulting in lower output. To avoid this, always keep cylinder fins and fan case clean.
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. 45) Fig. 45 GENERAL INSTRUCTIONS FOR FILING CUTTERS File (54) cutter on one side of the chain from the inside out. File on forward stroke only. (Fig. 46) 54 54 54 Weekly maintenance ○ Check the starter, especially cord and return spring. ○ Clean the exterior of the spark plug.
37 21 1 4 31 8 38 22 9 2 39 32 42 23 20 3 40 24 5 B 25 19 7 18 16 33 17 10 14 28 12 43 53 54 55 A 59 61 62 29 30 12 36 44 10 60 47 46 63 45 48 64 57 49 50 65 69 52 70 58 35 27 13 11 34 26 15 6 56 41 51 67 66 68 66 71 72 73 72 41 74 75 71 76 91 90 92 78 88 39 A 70 77 94 89 93 79 95 81 82 96 83 84 97 85 80 86 87 98 99 15 000Book̲CS40EA̲Eng.
125 502 501 126 121 127 122 118 111 112 128 B 129 119 123 120 124 130 113 114 117 115 116 38 115 114 113 112 111 135 111 112 134 131 136 149 137 150 132 133 125 98 138 99 139 151 142 140 141 154 155 156 147 134 153 152 146 125 157 148 143 158 159 161 160 144 162 41 145 125 163 155 165 166 164 167 38 168 169 170 171 173 172 174 175 39 16 000Book̲CS40EA̲Eng.
Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 Part Name Q’TY CLEANER COVER CLEANER ELEMENT (B) CLEANER ELEMENT (A) CLEANER ELEMENT ASS'Y COVER SET BOLT ALUMINUM TAPE (A) CYLINDER COVER CLEANER KNOB SHUTTER PLATE MACHINE SCREW M4 × 10 SCAVENGING COVER (B) COVER PACKING SPARK PLUG BPMR7A INTAKE PACKING INTAKE HEX. SOCKET HD.
Item No.
Shinagawa Intercity Tower A, 15-1, Konan 2-chome, Minato-ku, Tokyo, Japan 003 Code No. E99006311 G Printed in China 000Book̲CS40EA̲Eng.
