CS 33EDP - Saw HiKOKI - Free user manual and instructions

USER MANUAL CS 33EDP HiKOKI

000BookCS33EDPWE.indb5000BookCS33EDPWE.indb5 2019/01/249:39:302019/01/249:39:306 English

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. Emergency stop Read, understand and follow all warnings and instructions in this manual and on the unit. Fuel and oil mixture Always wear eye, head and ear protectors when using this unit. Chain oil fi ll Warning, kickback danger. Be careful of possible sudden and accidental upward and/or backward motion of the guide bar. Carburetor adjustment - Idle speed One-handed usage not permitted. While cutting, hold chain saw fi rmly with both hands with thumb fi rmly locked around front handle. Carburetor adjustment - Low speed mixture Chain brake Carburetor adjustment - High speed mixture Choke - Run position (Open) Priming pump Choke - Start position (Closed)

Guaranteed Sound power level On/Start Hot surface Off /Stop Oil pump adjustment Contents

1. 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

4. Oil tank cap: For closing the oil tank.

5. Recoil starter: Pull handle to start the engine.

6. Front handle: Support handle located at or towards the front of

7. Fuel tank cap: For closing the fuel tank.

8. Rear handle: Support handle located at or towards the rear of the

9. Choke lever: Device for enriching the fuel/air mixture in the

carburetor, to aid starting.

10. Priming pump; Device for supplying extra fuel, to aid starting.

11. Guide bar: The part that supports and guides the saw chain.

12. Saw chain: Chain, serving as a cutting tool.

13. Chain brake (Front hand guard): Device for stopping or locking

14. Chain catcher: device for restraining the saw chain.

15. Air fi ler cover: Cover for air fi lter and carburetor.

16. Side case: Protective cover to the guide bar, saw chain, clutch

and sprocket when the chain saw is in use.

17. Tension adjustment bolt: Device, often acting on the guide bar,

for adjusting the saw chain tension.

18. Chain oil adjusting screw: Device for adjusting the delivery of

saw chain oil to the guide bar and the saw chain.

19. Muffl er: Reduces engine exhaust noise and directs the exhaust

20. Anti-vibration spring: Reduce the transmission of vibrations to

the operator's hands.

21. Anti-vibration rubber: Reduce the transmission of vibrations to

the operator's hands.

22. Chain bar clamp nut: Secures the side case and the guide bar.

23. Spiked bumper: Device for acting as a pivot when in contact with

24. Guide bar cover: Device for covering the guide bar and saw

chain when the unit is not being used.

25. Combi box spanner: The tool for removing or installing a spark

plug and tensioning the saw chain.

26. Handling instructions: Included with unit. Read before operation

and keep for future reference to learn proper, safe techniques.

27. Hot surface caution label: Label for caution to hot surface.

WARNINGS AND SAFETY INSTRUCTIONS

Pay special attention to statements preceded by the following words: WARNING Indicates a strong possibility of severe personal injury or loss of life, if instructions are not followed. CAUTION Indicates a possibility of personal injury or equipment damage, if instructions are not followed. NOTE Helpful information for correct function and use. 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 non- slip soles, and eye, ear and leg protection equipment whenever you use a chain saw. For working in trees the safety boots must be suitable for climbing techniques. Ask HiKOKI Authorized Service Centers for help in choosing the right equipment. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair so it is above shoulder length. ○ Do not operate this tool when you are tired, ill or under the infl uence of alcohol, drugs or medication. ○ Never let a child or inexperienced person operate the machine. ○ Wear hearing protection. Pay attention to your surroundings. Be aware of any bystanders who may be signaling a problem. Remove safety equipment immediately upon shutting off engine. ○ Wear head protection. ○ Never start or run the engine inside a closed room or building. Breathing exhaust fumes can be fatal. ○ For respiratory protection, wear a protection mask while emitting the chain oil mist and dust from sawdust. ○ Keep handles free of oil and fuel. ○ Keep hands away from cutting equipment. ○ Do not grab or hold the unit by the cutting equipment. ○ When the unit is shut off , make sure the cutting attachment has stopped before the unit is set down. ○ When operation is prolonged, take a break periodically so that you may avoid possible Hand-Arm Vibration Syndrome (HAVS) which is caused by vibration. ○ National regulation can restrict the use of machine. ○ The operator must obey the local regulations of cutting area. WARNING ○ Antivibration systems do not guarantee that you will not sustain Hand-Arm Vibration Syndrome or carpal tunnel syndrome. Therefore, continual end regular users should monitor closely the condition of their hands and fi ngers. If any of the above symptoms appear, seek medical advice immediately. ○ Long or continuous exposure to high noise levels may cause permanent hearing impairment. Always wear approved hearing protection when operating a unit/machine. ○ If you are using any medical electric/electronic devices such as a pacemaker, consult your physician as well as the device manufacturer prior to operating any power equipment. Unit/machine safety ○ Inspect the entire unit/machine before each use and after dropping or other impacts. Replace damaged parts. Check for fuel leaks and make sure all fasteners are in place and securely tightened. ○ Replace parts that are cracked, chipped or damaged in any way before using the unit/machine. ○ Make sure the side case is properly attached. ○ Keep others away when making carburetor adjustments. ○ Use only accessories as recommended for this unit/machine by the manufacturer. ○ Never let the chain strike any obstacle. If the chain makes contact, the machine should be stopped and checked carefully. ○ Make sure the automatic oiler is working. Keep the oil tank fi lled with clean oil. Never let chain run dry on the guide bar. ○ All chain saw service, other than the items listed in the operator’s/ owner’s manual, should be performed by HiKOKI Authorized Service Centers. (For example, if improper tools are used to remove the fl ywheel or if an improper tool is used to hold the fl ywheel in order to remove the clutch, structural damage to the fl ywheel could occur and could subsequently cause the fl ywheel to burst.) WARNING ○ Never modify the unit/machine in any way. Do not use your unit/ machine for any job except that for which it is intended. ○ Tampering with the engine voids the EU type approval of this engine. ○ Never use chain saw without any safety equipment or that has faulty safety equipment. It could result in serious personal injury. ○ Using guide bar/chain other than recommended by the manufacturer which are not approved, could result in a high risk of personal accidents or injury. Fuel safety ○ Mix and pour fuel outdoors and where there are no sparks or fl ames. ○ Use a container approved for fuel. ○ Do not smoke or allow smoking near fuel or the unit/machine or while using the unit/machine. ○ Wipe up all fuel spills before starting engine. ○ Move at least 3 m away from fueling site before starting engine. ○ Stop engine and let it cool for a few minutes before removing fuel tank cap. ○ 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. ○ Store unit/machine and fuel in area where fuel vapors cannot reach sparks or open fl ames from water heaters, electric motors or switches, furnaces, etc. WARNING Fuel can be easily ignited and easily inhaled, pay special attention when handling. Cutting safety ○ Do not cut any material other than wood or wooden objects. ○ For respiratory protection, wear an aerosol protection mask when cutting the wood after insecticide has been applied. ○ Keep others including children, animals, bystanders and helpers outside the hazard zone. Stop the engine immediately if you are approached. ○ Hold the unit/machine fi rmly with the right hand on the rear handle and the left hand on the front handle. ○ Keep fi rm footing and balance. Do not over-reach. ○ Keep all parts of your body away from the muffl er and cutting attachment when the engine is running. ○ Keep guide bar/chain below waist level. ○ Before felling a tree, the operator must be accustomed to the sawing techniques of the chain saw. ○ Be sure to pre-plan a safe exit from a failing tree. ○ While cutting, hold the unit/machine fi rmly with both hands with thumb fi rmly locked around front handle, and stand with feet well balanced and your body balanced. ○ Stand to the side of the guide bar when cutting - never directly behind it. ○ Always keep the spiked bumper facing forward a tree, because the chain may suddenly be drawn into a tree, if so equipped. ○ When completing a cut, be ready to hold up the units as it breaks into clear, so it will not follow through and cut your legs, feet or body, or contact an obstruction. ○ Be alert against kickback (when chain saw kicks up and back at operator). Never cut with the nose of the guide bar. ○ When relocating to a new work area, be sure to shut off the machine and ensure that all cutting attachments are stopped. ○ Never place the machine on the ground when running. ○ Always ensure that the engine is shut off and any cutting attachments have completely stopped before clearing debris or removing grass from the cutting attachment. ○ Always carry a fi rst-aid kit when operating any power equipment. ○ Never start or run the engine inside a closed room or building and/or near the infl ammable liquid. Breathing exhaust fumes can be fatal. 000BookCS33EDPWE.indb8000BookCS33EDPWE.indb8 2019/01/249:39:312019/01/249:39:319 English Maintenance safety ○ Maintain the unit/machine according to recommended procedures. ○ Disconnect the spark plug before performing maintenance except for carburetor adjustments. ○ Keep others away when making carburetor adjustments. ○ Use only genuine HiKOKI replacement parts as recommended by the manufacturer. CAUTION Do not disassemble the recoil starter. There is a possibility of personal injury with recoil spring. 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 muffl er away from your body. ○ Allow the engine to cool, empty the fuel tank, and secure the unit/machine before storing or transporting. ○ 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. ○ Store unit/machine out of the reach of children. ○ Clean and maintain the unit carefully and store it in a dry place. ○ Make sure stop switch is off when transporting or storing. ○ When transporting or storage, cover chain with guide bar cover. If situations occur which are not covered in this manual, take care and use common sense. Contact HiKOKI Authorized Service Centers if you need assistance. WARNING KICKBACK DANGER (Fig. 1) One of the most severe dangers when working with a chain saw is the possibility of kickback. Kickback may occur when the upper tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. Tip contact in some cases may cause a lightning fast reverse reaction, kicking the guide bar up and back toward you. Pinching the saw chain along the top of the guide bar may also push the guide bar rapidly back towards you. Either of these reactions may cause you to lose control of the chain saw which could result in serious personal injury. Even though your chain saw has safety built into its design, you should not rely on these safety features exclusively. Know where your guide bar tip is at all times. Kickback does occur if you allow the kickback zone (1) of the guide bar to touch an object. Do not use that area. Kickback from pinching is caused by a cut closing and pinching the upper side of the guide bar. Study your cut and make sure it will open as you cut through. Maintain control when the engine is running by always keeping a fi rm grip on the chain saw with your right hand on the rear handle, your left hand on the front handle and your thumbs and fi ngers encircling the handles. Always hold the chain saw with both hands during operation and cut at high engine speed. Follow manufacturer's sharpening and maintenance instructions for the saw chain. The lack of this maintenance may increase the possibility of kickback. 000BookCS33EDPWE.indb9000BookCS33EDPWE.indb9 2019/01/249:39:312019/01/249:39:3110 English SPECIFICATIONS Model CS33EDP (35S) CS33EDP (40S) Type of equipment Chain saw, portable Engine Size (cm

) 290 Chain Oil Tank Capacity (cm

)180 Dry Weight (kg) (Without guide bar and chain)

Sound power level LwA (dB (A)) by ISO 22868 Measured *

Uncertainty Sound power level LwA (dB (A)) by 2000/14/EC Measured *

Vibration level (m/s

) by ISO 22867 Front handle *

Max. engine power by ISO 7293 (kW)

Max. engine speed (min

)13500 Idle engine speed (min

) 2800 – 3200 Type of chain 91PX (Oregon) Max. chain speed (m/sec) 25.7 Sprocket (number of teeth) 6 Type of drive sprocket Spur NOTE: Noise level/vibration levels are calculated as the time-weighted energy total for noise/vibration levels under various working conditions with the following time distribution:

: 1/3 idle, 1/3 full, 1/3 racing speed.

: 1/2 full, 1/2 racing speed. All data subject to change without notice. 000BookCS33EDPWE.indb10000BookCS33EDPWE.indb10 2019/01/249:39:312019/01/249:39:3111 English ASSEMBLY PROCEDURES WARNING Switch off the engine before carrying out any checks or maintenance. Never try to start engine without side case, guide bar and chain securely fastened.

1. Pull the front hand guard (2) toward the front handle to check that

the chain brake is disengaged. (Fig. 2)

• In case of installing the spiked bumper (5), install the spiked bumper (5) to the unit with two screws. (Fig. 4)

3. Install the guide bar (6) onto the bolts (7), then push it toward the

sprocket (8) as far as it will go. (Fig. 5)

4. Confi rm the direction of saw chain (9) is correct as in the fi gure,

and align the chain on the sprocket (8). (Fig. 5)

5. Guide the chain drive links into the bar groove all around the

Make sure that the boss of chain tension adjust bolt (10) fi ts into the hole of the guide bar (11). (Fig. 5) Then tighten the guide bar clamp nuts (3) by hand that allows the guide bar end to move up and down easily. (Fig. 6)

7. Raise the guide bar end, and tighten the chain (9) by turning the

tension adjustment bolt (12) clockwise. To check proper tension, lightly lift up the center of chain and there should be about 0 –

mm clearance between guide bar (6) and edge of drive link (13). (Fig. 7, 8) CAUTION

9. A new chain will stretch so adjust the chain after a few cuts and

watch chain tension carefully for the fi rst half hour of cutting. NOTE Check the chain tension frequently for optimum performance and durability. CAUTION ○ When the chain is excessively tightened, the guide bar and chain will be damaged rapidly. Conversely, when the chain is excessively loosened, it may get out of the groove in the guide bar. ○ Always wear gloves when touching the chain. WARNING During operation, hold chain saw fi rmly with both hands. A single hand operation may cause serious injury. OPERATING PROCEDURES Fuel (Fig. 10) WARNING ○ The chain saw is equipped with a two-stroke engine. Always run the engine on fuel, which is mixed with oil. Provide good ventilation, when fueling or handling fuel. ○ Fuel is highly fl ammable and it is possible to get seriously injured when inhaling or spilling on your body. Always pay attention when handling fuel. Always have good ventilation when handling fuel inside building. 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 HiKOKI Authorized Service Centers. ○ 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). Do not use BIA or TCW (2-stroke water-cooling type) mixed oil. ○ Never use multi-grade oil (10 W/30) or waste oil. ○ Never mix fuel and oil in machine’s fuel tank. Always mix fuel and oil in a separate clean container. Always start by fi lling half the amount of gasoline, which is to be used. Then add the whole amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of gasoline. Mix (shake) the fuel-mix thoroughly before fi lling the fuel tank. Mixing amount of two-cycle oil and gasoline Gasoline (Liter) Two-cycle oil (ml) Ratio 50:1 Ratio 25:1

Fueling (Fig. 11) WARNING ○ Always shut off the engine and let it cool for a few minutes before refueling. Do not smoke or bring fl ames or sparks near the fueling site. ○ Slowly open the fuel tank (15), when fi lling up with fuel, so that possible overpressure disappears. ○ Tighten the fuel tank cap carefully, after fueling. ○ Always move the unit at least 3 m from the fueling area before starting. ○ Always wash any spilled fuel from clothing immediately with soap. ○ Be sure to check any fuel leaking after refueling. Before fueling, clean the tank cap area carefully, to ensure that no dirt falls into the tank. Make sure that the fuel is well mixed by shaking the container, before fueling. Chain oil (Fig. 11) WARNING Never use waste or regenerated oil. If you use them, it will cause damage to your health or this unit. Slowly open the oil tank (16), and fi ll up with chain oil. Always use high quality chain oil. When the engine is running, the chain oil is automatically discharged. Fill up the oil tank (16) with chain oil every time when refueling. NOTE When pouring fuel or chain oil into the tank, place the unit with cap side up. (Fig. 11)

ADJUSTMENT OF CHAIN OIL SUPPLY

The chain oil quantity discharged through the lubrication system is adjusted to the maximum in the factory. Adjust the quantity in accordance with the operating condition. Turn the adjusting screw (17) counterclockwise to increase the quantity and turn it clockwise to decrease the quantity. (Fig. 12) Chain brake operation (Fig. 2, 13) Chain brake is designed to activate in an emergency such as kick- back action. Application of brake is made by moving the front hand guard (2) towards the guide bar. During the chain brake operation, even if the throttle lever is pulled, the engine speed does not increase and the chain does not turn. To release the brake, pull up the front hand guard (2) toward the front handle. If the engine keeps rotating at high speed with the brake engaged, the clutch will overheat causing trouble. When the brake engages during operation, immediately release the throttle lever to slow down the engine. How to confi rm the activation of the chain brake (Fig. 14)

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 confi rm brake operation. Operating level varies by bar size. 000BookCS33EDPWE.indb11000BookCS33EDPWE.indb11 2019/01/249:39:312019/01/249:39:3112 English In case the brake is not eff ective, ask HiKOKI Authorized Service Centers for inspection and repairs. Starting the cold engine (Fig. 2, 13, 15-18) CAUTION Before starting, make sure that the guide bar/chain does not touch anything.

1. Push the front hand guard (2) so that the brake is engaged.

3. Push priming pump (20) approximately ten times so that fuel

fl ows into carburetor. (Fig. 16)

4. Turn the choke lever (19) to set it in the START position. (

(Fig. 16) This will automatically lock to half-throttle.

5. Pull recoil starter (21) rapidly, taking care to keep the handle in

your grasp and not allowing the handle to snap back. (Fig. 17)

6. When you hear fi rst ignition, return the choke lever (19) to set it in

the RUN position ( ). (Fig. 16) NOTE When the choke lever is put back to the RUN position ( ) from the START position ( ) by hand, the throttle lever will be kept half-open (half-throttle).

7. Pull recoil starter (21) rapidly again in the aforementioned

manner. (Fig. 17) NOTE If engine does not start, repeat procedures from 4 to 7.

8. As soon as the engine starts, pull throttle lever (23) full once with

the throttle lever lockout (22) pressed and immediately release the throttle lever (23). Then half-throttle is disengaged. (Fig. 18)

9. Pull the front hand guard (2) so that the brake is disengaged.

(Fig. 2) Allow the engine about 2-3 minutes to warm up before subjecting it to any load. Do not run the engine at high speed without the load to avoid shortening the life of the engine. Starting the warm engine Use only 1, 2, 7, and 9 of the starting procedure for a cold engine. If the engine does not start, use the same starting procedure as for a cold engine. Chain lubrication test (Fig. 19) Check that chain oil is discharged properly. When the saw chain starts to revolve, point the head of the guide bar to a stump, etc., and pull the throttle lever to perform high-speed operation for around 10 seconds. If chain oil is sprayed over the stump, it is discharged properly. WARNING Do not carry the machine with the engine running. Stopping (Fig. 20) Decrease engine speed, and push stop switch (18) to stop position. WARNING Do not put the machine where there are fl ammable materials such as dried grass, since the muffl er is still hot after the engine has stopped. NOTE If the engine does not stop, it can be forced to stop by turning the choke lever in the START position ( ). Before restarting the engine, ask HiKOKI Authorized Service Centers for repairs. WARNING ○ Do not overreach or cut above shoulder height. ○ Use extra caution when felling, and do not use the chain saw in a nose-high position or above shoulder height. CHAIN CATCHER The chain catcher is located on the power head just below the chain to further prevent the possibility of a broken chain striking the chain saw user. 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. WARNING ○ This information does not cover all specifi c situations, which may depend on diff erences in terrain, vegetation, kind of wood, form and size of trees, etc. Consult HiKOKI Authorized Service Centers, forestry agent or local forestry schools for advice on specifi c woodcutting problems in your area. This will make your work more effi cient and safer. ○ Avoid cutting in adverse weather conditions, such as dense fog, heavy rain, bitter cold, high winds, etc. Adverse weather is often tiring to work in and creates potentially dangerous conditions such as slippery ground. High winds may force the tree to fall in an unexpected direction causing property damage or personal injury. CAUTION Never use a chain saw to pry or for any purpose for which it is not intended. WARNING ○ Avoid stumbling on obstacles such as stumps, roots, rocks, branches and fallen trees. Watch out for holes and ditches. Be extremely cautious when working on slopes or uneven ground. Shut off the engine when moving from one work place to another. Always cut at wide open throttle. A slow moving chain can easily catch and force the chain saw to jerk. ○ Never use the chain saw with only one hand. You cannot control the chain saw properly and you may lose control and injure yourself severely. Keep the chain saw body close to your body to improve control and reduce strain. When cutting with the bottom part of the chain the reactive force will pull the chain saw away from you towards the wood you are cutting. The chain saw will control the feeding speed and sawdust will be directed towards you. (Fig. 21) ○ When cutting with the upper part of the chain the reactive force will push the chain saw towards you and away from the wood you are cutting. (Fig. 22) ○ There is a risk of kickback if the chain saw is pushed far enough so that you begin to cut with the nose of the guide bar. The safest cutting method is to cut with the bottom part of the chain. Sawing with the upper part makes it much more diffi cult to control the chain saw and increases the risk of kickback. ○ 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, if so equipped. 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. Before felling a tree, carefully consider all conditions which may eff ect the intended direction, such as: Angle of the tree. Shape of the crown. Snow load on the crown. Wind conditions. Obstacles within tree range (e.g., other trees, power lines, roads, buildings, etc.). WARNING ○ Always observe the general conditions of the tree. Look for decay and rot in the trunk which will make it more likely to snap and start to fall before you expect it. ○ Look for dry branches, which may break and hit you when you are working. Always keep animals and people at least twice the tree length away while felling. Clear away shrubs and branches from around the tree. Prepare a path of retreat away from the felling direction. 000BookCS33EDPWE.indb12000BookCS33EDPWE.indb12 2019/01/249:39:312019/01/249:39:3113 English

BASIC RULES FOR FELLING TREES

Normally the felling consists of two main cutting operations, notching and making the felling cut. Start making the upper notch cut on the side of the tree facing the feeling direction. Look through the kerf as you saw the lower cut so you do not saw too deep into the trunk. The notch should be deep enough to create a hinge of suffi cient width and strength. The notch opening should be wide enough to direct the fall of the tree as long as possible. Saw the felling cut from the other side of the tree between one and two inches (3–5 cm) above the edge of the notch. (Fig. 23)

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. Insert a wedge or a felling lever in the cut well before the tree becomes unstable and starts to move. This will prevent the guide bar from binding in the felling cut if you have misjudged the falling direction. Make sure no people have come into the range of the falling tree before you push it over. FELLING CUT, TRUNK DIAMETER MORE THAN TWICE GUIDE BAR LENGTH Cut a large, wide notch. Then cut a recess into the center of the notch. Always leave a hinge on both sides of the center cut. (Fig. 24) Complete the felling cut by sawing around the trunk as in the Fig. 25. WARNING These methods are extremely dangerous because they involve the use of the nose of guide bar and can result in kickback. Only properly trained professionals should attempt these techniques. LIMBING Limbing is removing the branches from a feller tree. WARNING A majority of kickback accidents occur during Iimbing. Do not use the nose of the guide bar. Be extremely cautious and 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. 26) Stand on the left side of the trunk. Maintain a secure footing and rest the chain saw on the trunk. Hold the chain saw close to you so that you are in full control of it. Keep well away from the chain. Move only when the trunk is between you and the chain. Watch out for spring back of limbs under tension.

LIMBING THICK BRANCHES

When limbing thick branches, the guide bar may get pinched easily. Branches under tension often snap up, so cut troublesome branches in small steps. Apply the same principles as for cross cutting. Think ahead and be aware of the possible consequences of all your actions.

CROSS CUTTING/BUCKING

Before starting to cut through the log, try to imagine what is going to happen. Look out for stresses in the log and cut through it in such a manner that the guide bar will not get pinched.

CROSS CUTTING LOGS, PRESSURE ON TOP

Take a fi rm 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. 27)

33. Relative depth of saw cuts

THICK LOG, LARGER THAN GUIDE BAR LENGTH Begin by cutting on the opposite side of the log. Pull the chain saw towards you, followed by previous procedure. (Fig. 28) If the log is lying on the ground make a boring cut to avoid cutting into the ground. Finish with a bottom cut. (Fig. 29) 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 fi rm 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. (Fig. 30)

39. Relative depth of saw cuts

THICK LOG, LARGER THAN GUIDE BAR LENGTH Begin by cutting on the opposite side of the log. Pull the chain saw towards you, followed by previous procedure. Make a boring cut if the log is close to the ground. Finish with a top cut. (Fig. 31) 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. (Fig. 32)

IF THE CHAIN SAW GETS STUCK

Stop the engine. Raise the log or change its position, using a thick branch or pole as a lever. Do not try to pull the chain saw free. If you do, you can deform the handle or be injured by the saw chain if the chain saw is suddenly released. MAINTENANCE Carburetor adjustment (Fig. 33) In the carburetor, fuel is mixed with air. When the engine is test run at the factory, the carburetor is adjusted. A further adjustment may be required, according to climate and altitude. The carburetor has one adjustment possibility: T = Idle speed adjustment screw. Idle speed adjustment (T) Check that the air fi lter 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. If the cutting attachment still rotates after idle speed adjustment, contact HiKOKI Authorized Service Centers. WARNING When the engine is idling the cutting attachment must under no circumstances rotate. NOTE Do not touch the High speed adjustment (H) and the Low speed adjustment (L). Those are only for HiKOKI Authorized Service Centers. If you rotate them, it will cause a serious damage to the machine. Air fi lter (Fig. 34) The air fi lter (40) 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 fi lter daily or more often if working in exceptionally dusty areas. 000BookCS33EDPWE.indb13000BookCS33EDPWE.indb13 2019/01/249:39:312019/01/249:39:3114 English Remove the air fi lter cover (41) and the fi lter (40). Rinse them in warm soap suds. Check that the fi lter is dry before reassembly. An air fi lter that has been used for some time cannot be cleaned completely. Therefore, it must regularly be replaced with a new one. A damaged fi lter must always be replaced. Spark plug (Fig. 35) The spark plug condition is infl uenced by: ○ An incorrect carburetor setting. ○ Wrong fuel mixture (too much oil in the gasoline) ○ A dirty air fi lter. ○ Hard running conditions (such as cold weather). These factors cause deposits on the spark plug electrodes, which may result in malfunction and starting diffi culties. If the engine is low on power, diffi cult to start or runs poorly at idling speed, always check the spark plug fi rst. If the spark plug is dirty, clean it and check the electrode gap. Readjust if necessary. The correct gap is 0.6 mm. The spark plug should be replaced after about 100 operation hours or earlier if the electrodes are badly eroded. NOTE In some areas, local law requires using a resistor spark plug to suppress ignition signals. If this machine was originally equipped with resistor spark plug, use same type of spark plug for replacement. Oiler port (Fig. 36) Clean the chain oiler port (42) whenever possible. Guide bar (Fig. 37) Before using the machine, clean the groove and oiler port (43) in the guide bar. Side case (Fig. 38) Always keep the side case and drive area clean of saw dust and debris. Periodically apply oil or grease to this area to protect from corrosion as some trees contain high levels of acid. NOTE Pull up the front hand guard towards you and release the brake to remove or install the side case. Fuel fi lter (Fig. 39) Remove the fuel fi lter (44) from the fuel tank and thoroughly wash it in solvent. After that, push the fi lter into the tank completely. NOTE If the fuel fi lter (44) is hard due to dust and dirt, replace it. Chain oil fi lter (Fig. 39) Remove the oil fi lter (45) and thoroughly wash it in solvent. After that, push the fi lter into the tank completely. NOTE If the oil fi lter (45) is hard due to dust and dirt, replace it. 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. CHAIN SHARPENING Parts of a cutter (Fig. 40, 41) WARNING ○ Gloves should be used when sharpening chain. ○ Be sure to round off the front edge to reduce the chance of kickback or tie-strap breakage.

55. Correct angle on top plate (degree of angle depends on chain

56. Slightly protruding “hook” or point (curve on non-chisel chain)

57. Top of depth gauge at correct height below top plate

58. Front of depth gauge rounded off

LOWERING DEPTH GAUGES WITH A FILE

WARNING ○ Do not smoothen the upper part of the bumper drive links (59) with a fi le or deform them. (Fig. 42) ○ Adjust the depth gauge to the specifi ed setting. Failure to observe the above raises the possibility of a kickback and may result in injury.

1) If you sharpen your cutters with a fi le holder, check and lower the

2) Check depth gauges every third sharpening.

3) Place depth gauge tool on cutter. If depth gauge projects, fi le

it level with the top of the tool. Always fi le from the inside of the chain toward an outside cutter. (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 chain saw. (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. (Fig. 45)

5) Keep all cutters the same length. (Fig. 42)

6) File enough to remove any damage to cutting edges (side plate

(61) and top plate (62)) of cutter. (Fig. 46)

Maintenance schedule Below you will fi nd some general maintenance instructions. For further information please contact HiKOKI Authorized Service Centers. Inspection and service before use ○ Check that no peel-off , degradation, or damage is observed in the Anti-Vibration rubber members, and no loosening or damage is observed in their fi xtures. ○ Check that no damage is observed in the Anti-Vibration springs, and no loosening or damage is observed in their fi xtures. ○ Check that no deformation or damage is observed in the front and rear handles. ○ Check that the fi xtures for front and rear handles are suffi ciently tightened and free of damage. ○ Check that bolts, nuts, etc. used for each part are suffi ciently tightened and free of damage. Daily maintenance ○ Clean the exterior of the unit. ○ Clean the chain oil fi lter port. ○ Clean the groove and oiler port in the guide bar. ○ Clean the side case of saw dust. ○ Check that the saw chain is sharp. ○ Check that the guide bar clamp nuts are suffi ciently tightened. ○ Make sure that the guide bar cover is undamaged and that it can be securely fi tted. 000BookCS33EDPWE.indb14000BookCS33EDPWE.indb14 2019/01/249:39:322019/01/249:39:3215 English ○ Check that nuts and screws are suffi ciently tightened. ○ Check the tip of the guide bar. Please exchange it for the new one when it is worn out. ○ Check the band of chain brake. Please exchange it for the new one when it is worn out. ○ Check that the chain does not rotate when the engine is idling. ○ Clean the air fi lter. Weekly maintenance ○ Check the recoil starter, especially cord. ○ Clean the exterior of the spark plug. ○ Remove the spark plug and check the electrode gap. Adjust it to

9 CARBURETOR ASS'Y (INCLUD.10-25) 1

47 PUMP ASS'Y (INCLUD.37,39-46) 1

65 FUEL TANK CAP ASS'Y (VERMILION) (INCLUD.66) 1

80 GLASS WASHER 2 81 IGNITION COIL 1 82 CORD (A) 1

88 CRANK WORM ASS'Y (INCLUD.89-92) 1

178 BOLT WASHER D5 1

184 RECOIL STARTER ASS'Y (NS) 1

EC DECLARATION OF CONFORMITY

We declare under our sole responsibility that Chain Saw, identifi ed by type and specifi c identifi cation code *1), is in conformity with all relevant requirements of the directives *2) and standards *3). Technical fi le at *4) – See below. The European Standard Manager at the representative offi ce in Europe is authorized to compile the technical fi le. Annex V (2000/14/EC): For information relating to noise emissions, see the chapter specifi cations. Measured sound power level: 112 dB Guaranteed sound power level: 114 dB Notifi ed body: 0404, SMP Svensk Maskinprovning AB, Box 7035, SE-750 07, Uppsala, Sweden has carried out a EC type examination according to Article 12, clause 3b. The notifi ed body has issued EC type examination certifi cate no. 0404/18/2497 according to Annex IX, clause 4. The declaration is applicable to the product affi xed CE marking.

A. Nakagawa Corporate Offi cer