Petrol Chainsaw WARNING Before using our product please. Instructions. read carefully to understand the proper use of your unit.

Transcription

1 Petrol Chainsaw 9082 Instructions WARNING Before using our product please read carefully to understand the proper use of your unit.

2 Contents Parts location 3 Specifications 3 Symbols on the machine For safe operation 8-9 Installing guide bar and saw chain Fuel and chain oil 12 Operation Sawing Maintenance Maintenance of saw chain and guide bar Troubleshooting guide 27 Storage 28 Packaging Disposal 28 EC Declaration of Conformity 28 SAFETY FIRST Instructions contained in warnings within these instructions marked with a symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury, and for this reason you are requested to read all such instructions carefully and follow them without fail. WARNING SYMBOLS This mark indicates instructions which must be followed in order to prevent accidents which could lead to serious bodily injury or death. Important This mark indicates instructions which must be followed, or it leads to mechanical failure, breakdown, or damage. Note This mark indicates hints or directions useful in the use of the product. 2

3 Parts location Front guard Guide bar Saw chain Air cleaner cover Starter rope Oil tank Choke knob Left handle Engine switch Throttle lever Fuel tank Throttle trigger Throttle interlock Right handle Tensioner nut Specifications Power unit Displacement: 45cm 3 Usable cutting length: 440mm (18in) Fuel: Mixture Petrol 25 : 2-cycle oil 1 Max. chain speed (at 1.33 x max. engine power) 21.2m/s Fuel tank capacity: 550ml Chain oil: Motor oil SAE 10W-30 Oil tank capacity: 260ml Carburetor: Diaphragm type Engine idling speed min-1 Ignition system: Pointless CDI Power: 1.7/7,500 kw/min -1 Sound pressure level ISO LPA: 108dB(A) Max speed: 2,800min -1 Sound pressure level ISO LWA< 116dB(A) Dimensions: L400 xw250 xh270mm Vibration tool value ISO 22867: <15m/s 2 Dry Weight: Power unit only 6.4kg Cutting attachment Guide bar: Type: Sprocket nose 16(40) Size: 18in (45cm) Gauge: 0.050in (1.27mm) Saw Chain: Type: Oregon Pitch:.325in (8.26mm) Sprocket teeth: 7 Specifications are subject to change without notice. 3

4 Symbols on the machine For safe operation and maintenance, symbols are carved in relief on the machine. According to these indications, please be careful not to make any mistake. (a) (a) The port to refuel Petrol/2-Stroke Oil mix using mixing container. Position: Fuel cap, bottom of the power unit. (b) (b) The port to top up chain oil. Position: Oil cap. (c) (c) Setting the switch to the O position, the engine stops immediately. Position: Rear-left of the unit. (d) CHOKE START RUN (d) Starting the engine. If you pull out the choke knob (at the back-right of the rear handle) to the point of the arrow, you can set the starting mode as follows: Firststage position starting mode when the engine is warm. Second-stage position starting mode when the engine is cold. Position: Upper-right of the air cleaner cover. (e) (e) The screw under the H stamp is the high-speed adjustment screw. The screw under the L stamp is the slow-speed adjustment screw. The screw at the left of the T stamp is the Idle adjustment screw. Position: to the right of the starter rope. (f) (f) Shows the directions that the chain brake is released (white arrow) and activated (black arrow). Position: Front of the chain cover. (g) g) Use a screwdriver to turn the screw to increase or decrease the flow of oil to the chain. Position: Bottom of the power unit. 4

5 Chainsaws are potentially dangerous tools. Professional training is recommended before first use. If you are not familiar with chainsaws and the felling of trees, it is recommended that you obtain further more detailed instructions and information regarding chain-sawing in addition to reading this manual fully. We also recommend that inexperienced chainsaw users practice cutting logs on a saw-horse or log cradle before attempting to fell a tree. Keep work area clean. Do NOT start cutting until you have a clear work area, secure footing and a planned, clear escape path from the falling tree or limb. Use extreme caution when cutting small size brush and saplings because the slender material may catch the saw chain and be whipped toward you or pull you off balance. Do NOT operate a chainsaw at height in a tree or on a ladder unless specifically trained to do so. When cutting a limb that is under tension, be alert for spring back so that you will not be struck when the tension in the wood fibres is released. Do NOT expose the chainsaw to rain. Do NOT use the chainsaw in damp or wet conditions. Do NOT use the chainsaw in presence of flammable liquids or gases. Keep children, bystanders and pets away from the work area. When not in use, chainsaws should be stored in a dry, secure location well out of the reach of children. Always fit the chain guard when not in use. Never force the chainsaw - it will do the job better and safer when used correctly. Only suitable for use to cut wood with a diameter smaller than the length of the guide bar. Do NOT use chainsaw for cutting plastic, masonry, non-wood building materials. Do NOT use the chainsaw for any use other than the intended use described in these instructions. Make sure you are suitably dressed when using the chainsaw with correct standard Personal Protective Equipment. Do NOT wear loose clothing or jewellery that can get caught in moving parts. Heavy duty gloves and sturdy non-slip work boots are recommended when working outdoors. Wear a hairnet to contain long hair which can get caught in moving parts. Always wear suitable head, ear and eye protection. Carry the chainsaw by the front handle with the saw stopped, your finger off the trigger and the guide bar and saw chain to your rear. Periodically inspect chainsaw for damage. Do NOT use if damaged in any way. Always clean after use and replace worn parts when performance becomes reduced. Do not smoke while handling fuel or while operating the chainsaw. Follow instructions for lubricating and changing accessories. Keep handles dry, clean and free from oil and grease. Turn off the chainsaw when not in use, before servicing or cleaning, and when changing accessories and attachments, such as saw chain and guard. Stay alert, watch what you are doing. Always use common sense. 5

6 Do NOT operate chainsaw when you are tired, ill or under the influence of alchol or drugs. Using a chainsaw can be strenuous. Remember to take regular breaks. Tiredness may result in loss of control. Keep all parts of the body away from the chain when the chainsaw is switched on. Before you start the saw, make sure the saw chain is not in contact with anything. Always check for damaged parts before first and every use or if the chainsaw is dropped. Do NOT use if any part is damaged in any way. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect operation. Any part that is damaged should be properly repaired or replaced by an authorised service centre unless otherwise indicated elsewhere in this instruction manual. Regularly check that all the fixings are secure as vibrations in use may cause them to loosen over time. When servicing, use only identical replacement parts. Do NOT use the chainsaw if the switch does not turn it on and off. Do NOT operate a chainsaw that is damaged, improperly adjusted, or is not completely and securely assembled. Be sure that the saw chain stops moving when the trigger is released before using to cut wood. Guard against kickback. Only use replacement bars and chains specified by the manufacturer or the equivalent. For outdoor domestic use only. RESIDUAL RISKS Despite the above warnings and due to the nature of the product, there remains a residual risk, which cannot be prevented when using a chainsaw. The following potential hazards might apply: Contact with exposed saw teeth of the saw chain (cutting hazards). Access to the rotating saw chain (cutting hazards). Unforeseen, abrupt movement of the guide bar (cutting hazards.) Parts flung out from the saw chain (cutting/injection hazards). Wood splinter ejection. Inhalation of wood particles and dust - there may be health risks caused by breathing in dust, especially dust generated from sawing oak, beech and MDF. Skin contact with the lubricating oil. Loss of hearing, if ear protection is not worn. INTENDED/UNINTENDED USE When using the chainsaw, the user must arrange to use personal protective equipment according to the manual. Parts of the intended use are detailed in the manual s safety warnings and references for use by those who work with the chain saw or maintain it, therefore the user must be familiar with the manual. Only use original or approved spare parts (e.g. guide bar; saw chain). 6

7 Vibration Prolonged use of chainsaws or any other machine that vibrates in use, may produce a medical condition called white finger disease, Raynaud s phenomenon, or carpal tunnel syndrome. These conditions can cause numbness, burning sensations and circulation damage, and may reduce the hand s ability to feel and regulate temperature. The factors that contribute to these conditions are not fully known, but high vibrations may be a cause. Users should take precautions to minimise the risks which include: Wear gloves Keep hands warm Take breaks from prolonged use Keep the chain saw sharp so that it operates as smoothly as possible Maintain a firm grip but do not squeeze too tight and for too long at any one time. Continual and regular users should monitor their hands and fingers and if any symptoms occur, or if you are worried at any time, cease use and consult your medical practitioner for further advice. Restriction of use. Please check with your local authority before using a chainsaw as there may be regulations in force that restrict their use e.g. in times of drought. Hearing protection. It is recommended that safety ear/hearing protection is worn at all times when operating this chain saw. Chain saw noise may damage your hearing. Regular users should have frequent hearing tests with their medical practitioner. The hearing protection should be suitable for defending hearing for the following levels: Sound pressure level according to ISO22868 LPA:108dB(A). Sound pressure level according to ISO22868 LWA: <116dB(A) Inhalation Using the chainsaw may generate dust, mist and fumes containing chemicals that could be harmful to the user. Dust alone may also be harmful and should not be inhaled. Never use the chain saw to cut anything that is known to contain a harmful substance such as asbestos. Always operate the chainsaw in a well-ventilated location, preferably outdoors. Remember that the fuel and oil used to power and lubricate this machine will give off harmful fumes in use, and when filling always ensure there is sufficient ventilation as soon as you start the engine. A dust mask or breathing apparatus is recommended safety equipment, and anyone with a respiratory or other breathing medical condition is advised to consult their medical practitioner before using the chainsaw. 7

8 For safe operation Kickback situations Good grip positions Correct handle grip Incorrect handle grip Do not overreach KICKBACK SAFETY PRECAUTIONS FOR CHAINSAW USERS WARNING Kickback may occur when the nose or 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 towards the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause you to Iose control of the chainsaw, which could result in serious personal injury. Do not rely exclusively on the safety devices built into your chainsaw. As a chainsaw user you should take several steps to keep cutting jobs free from accident or injury. (1) With a basic understanding of kickback you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents. (2) Keep a good grip on the saw with both hands, the right hand on the rear handle, and the left hand on the front handle, when the engine is running. Use a firm grip with thumbs and fingers encircling the chain saw handles. A firm grip will help you reduce kickback and maintain control of the saw. (3) Make certain that the area in which you are cutting is free from obstructions. Do not let the nose of the guide bar make contact with a log, branch, or any other obstruction which could be hit while you are operating the saw. (4) Cut at high engine speeds. (5) Do not overreach or cut above shoulder height. (6) Follow the manufacturer s sharpening and maintenance instructions for the saw chain. (7) Only use replacement bars and chains specified by the manufacturer or the equivalent. 8

9 For safe operation AVOIDING PULL-IN Pull-in can occur when the bottom of the chain is used for cutting and is stopped suddenly by hitting a foreign object or getting pinched. This pulls the chainsaw forwards and may cause the user to lose control. Pull-in can also occur when the chain is not running at full speed when contact is made with the wood and if the bumper spike is not held securely against the wood being cut. Ensure the chain is rotating at full speed and the bumper spike is correctly positioned when making a cut. AVOIDING PUSHBACK Pushback can occur when the top of the chain is used for cutting and is stopped suddenly by hitting a foreign object or getting pinched. This pulls the chainsaw towards the user and may cause the user to lose control. Take care not to twist the chainsaw as it is removed when bucking from underneath the log. Do NOT cut more than one log at any one time. Be aware of situations that may cause the chain to pinch or pull. BUMPER SPIKE This is used to help secure the tree or limb when cutting and should be used at all times when positioning the chainsaw. It will help prevent pull-in, pushback, kickback and loss of control. Bumper Spike 9

10 Installing guide bar and saw chain (F0) A standard saw unit package contains the items (F0). (1) Power unit (2) Saw guard (3) Guide bar (4) Saw chain (5) Plug wrench (6) Screwdriver for carburetor adjustment (7) Spike, 2 screws and Allen key (F1) (F2) Open the box and install the guide bar and the saw chain on the power unit as follows: The saw chain has very sharp edges. Use thick protective gloves for safety. 1. Pull the front guard towards the front handle to check that the chain brake is not engaged. 2. Loosen the nuts using the wrench and remove the chain cover. (F3) (1) Moving direction 3. Install the spike to the power unit. Secure using 2x screws and Allen key (F1). 4. Gear the chain to the sprocket and, while fitting the saw chain around the guide bar, mount the guide bar to the power unit. Adjust the position of the chain tensioner (F2). (1) Tensioner nut (2) Chain cover Note Pay attention to the correct direction of the saw chain (F3) 10

11 Installing guide bar and saw chain (F4) 5. Fit the chain cover to the power unit and fasten the nuts to finger tightness. 6. While holding up the tip of the bar, adjust the chain tension by turning the tensioner screw until the tie straps just touch the bottom side of the bar rail (F4). 7. Tighten the nuts securely with the bar tip held up (12-15N.m). Then check the chain for smooth rotation and proper tension while moving it by hand. If necessary, readjust with the chain cover loose. 8.Tighten the tensioner screw. (1) Loosen (2) Tighten (3) Tensioner screw Note A new chain will loosen during first use. Check and readjust the tension frequently as a loose chain can easily derail or cause rapid wear of itself and the guide bar. 11

12 Fuel and chain oil Use caution when handling fuel FUEL Petrol is flammable. Always turn off the engine and allow to cool fully before refuelling. Mix regular unleaded petrol and a quality 2-stroke motor oil for air-cooled engines at a ratio of 25:1. Do not use 4-stroke oil. Keep your distance from fuel point when using chainsaw Do not mix fuel and oil in the petrol tank of the chainsaw. Always use the mixing bottle supplied, secure the lid and shake to mix. Keep naked flames away from where petrol is stored or handled. Do not use petrol/oil mix more than 1 month old. Keep fuel away from naked flame Always use caution when handling fuel. Wipe up all spills and then move the chainsaw at least 3m from the fueling point before starting the engine. Eliminate all sources of sparks or flame (i.e. smoking, open flames, or work that can cause sparks) in the areas where fuel is mixed, poured or stored. CHAIN OIL Use motor oil SAE 10W-30 all year round or SAE 30 ~ 40 in summer and SAE 20 in winter. Only use recommended motor oil Note Do not use old or regenerated oil that can cause damage to the oil pump. 12

13 Operation Keep people and animals at safe distance Work in safe and secure area It is very dangerous to run a chainsaw that has any broken or moving parts or lacks any parts. Before starting the engine, make sure that all the parts including bar and chain are installed properly. Check the chainsaw before every use and do not use if damaged in any way Do not allow other persons to be near the chain saw when starting or cutting. Keep bystanders and animals out of the work area. Children, pets and bystanders should be a minimum of 10m away when you start or operate the chainsaw. Never start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree. Clear of ground when starting motor (F5) Before you start the engine, make sure the saw chain is not contacting anything including the ground. Keep the handles dry, clean and free of oil or fuel mixture. STARTING THE ENGINE 1. Fill fuel and chain oil tanks respectively, and tighten the caps securely (F5). 2. Ensure the chain brake is on (see diagram below).push the front guard down towards the guide bar. Set the switch to "I" position (F6). (F6) (1) Chain oil (2) Fuel (3) Switch 13

14 Operation (F7) (F8) (F9) (6) 3.While holding the throttle trigger and pressing down on the throttle interlock, push in the side throttle lock button and release the throttle trigger to hold it at the starting position (F7). (4) Throttle lever (5) Throttle trigger (6) Throttle interlock 4. Pull out the choke knob (F8) (7) Choke knob. 5. While holding the chainsaw unit securely on the ground, pull the starter rope vigorously (F9). Pull the starter rope upwards, not to the side. Pulling to the side may cause the rope to fray. It may take 3 or 4 pulls to start the engine. If the engine does not start after 3-4 attempts, open the choke further and try again. Do not start the engine while the chainsaw hangs in one hand. The saw chain may touch your body. This is very dangerous. 6.When the engine has started gradually push the choke in. 7. Allow the engine to warm up with the throttle lever pulled slightly. 8. Release the chain brake by pulling it towards you. Keep clear of the saw chain upon starting of engine. 14

15 Operation (F10) CHECKING THE OIL SUPPLY Make sure the bar and the chain are set up when checking the oil supply. If not, the rotating parts may be exposed and this is very dangerous. After starting the engine, run the chain at medium speed and see if chain oil is scattered off as shown (F10). (1) Chain oil The chain oil flow can be changed by inserting a screwdriver in the hole on bottom of the clutch side. Adjust according to your work conditions (F11). (F11) (1) Heavy flow (2) Light flow (3) Chain oil flow adjusting hole Note The oil tank should become nearly empty by the time fuel is used up. Be sure to refill the oil tank every time when refueling the chainsaw. ADJUSTING THE CARBURETOR (F12) The carburetor on your unit has been factory adjusted but may require fine tuning due to a change in operating conditions. Before adjusting the carburetor, make sure that the provided air/fuel filters are clean and fresh and the fuel properly mixed. 15

16 Operation (F12) When adjusting, take the following steps: Note Be sure to adjust the carburetor with the bar chain attached. 1. H and L needles are restricted within the number of turn as shown below. H needle: 1+ or 3 /8 L needle: 1 1 /4 + or 1 /4 2. Start the engine and allow it to warm up in low speed for a few minutes. CLUTCH To check the operation of the clutch run the saw at idle speed and there shoud be no movement of the chain. If chain moves there may be clutch wear or idle is adjusted too high. (F13) 3. Turn L needle slowly clockwise to find a position where the idling speed is maximum then move the needle back a quarter turn anti-clockwise. 4. Turn the idle adjusting screw T anti-clockwise so that the saw chain does not turn. If the idling speed is too slow, turn the screw clockwise. 5. Make a test cut and adjust the H needle for best cutting power, not for maximum speed. (1) L needle (2) H needle (3) T idle adjusting screw CHAIN BRAKE This machine is equipped with an automatic brake to stop saw chain rotation upon occurrence of kickback during saw cutting. The brake is automatically operated by inertial force, which acts on the weight fitted inside the front guard. This brake can also be operated manually with the front guard turned down to the guide bar. To release the brake, pull up the front guard toward the front handle till click sound is heard (F13). 16

17 Operation (F14) Important [Caution] Check brake operation before each use. How to confirm: 1) Turn on 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. Operating level varies by bar size (F14). If the engine is kept running at high speed whilst the brake is engaged, the clutch will overheat and become damaged. Always hold the chainsaw firmly with both hands when the engine is running. Use a firm grip with thumb and fingers encircling the chain saw handles. Chainsaw service dealer (F15) (1) Switch Keep all parts of your body away from the saw chain when the engine is running. All chainsaw service, other than the items listed in the Instructions, should be performed by competent chainsaw service personnel. (e.g., if improper tools are used to remove the flywheel, or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur which could subsequently cause the flywheel to disintegrate.) Always turn off the engine before putting the chainsaw down. Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance, or stop the chain. When cutting a limb that is under tension, be alert for spring-back so that you will not be struck when the tension in the wood fibres is released. Kickback is the upward motion of the guide bar which occurs when the saw chain at the nose of the guide bar makes contact with an object. Kickback can lead to dangerous loss of control of the chainsaw. STOPPING THE ENGINE 1. Release the throttle lever to allow the engine to idle for a few minutes. 2. Set the switch to the "O" (STOP) position (F15). 3. Be aware that the chain will continue to move for a short time after the engine has stopped. 17

18 Sawing Good grip positions Clear of ground when starting motor Correct distance Correct handle grip Incorrect distance Incorrect handle grip Before proceeding to your job, read For Safe Operation section p7-8. It is recommended to first practice sawing easy logs. This also helps you get accustomed to your unit. Always follow the safety regulations. The chainsaw must only be used for cutting wood. It is not suitable for cutting any other type of material. Vibrations and kickback vary with different types of woods. Do not use the chainsaw as a lever for lifting, moving or splitting objects. It is not necessary to force the saw into the cut. Apply only light pressure while running the engine at full throttle. When the saw chain is caught in the cut, do not attempt to pull it out by force, but use a wedge or a lever to open the way. Do not fit any other tools to the chainsaw or use for any other purpose other than those specified in these instructions. GUARD AGAINST KICKBACK (F15) This saw is equipped with a chain brake that will stop the chain in the event of kickback if operating properly. You must check the chain brake operation before each usage by running the saw at full the throttle for I 2 seconds and pushing the front hand guard forward. The chain should stop immediately with the engine at full speed. If the chain is slow to stop or does not stop, replace the brake band and clutch drum before use. (F15) It is extremely important that the chain brake be checked for proper operation before each use and that the chain be sharp in order to maintain the kickback safety level of this saw. Removal of the safety devices, inadequate maintenance, or incorrect replacement of the bar or chain may increase the risk of serious personal injury due to kickback and will invalidate your warranty (F15). 18

19 Sawing FELLING DIRECTION DANGER ZONE FELLING DIRECTION FELLING CUT ESCAPE ROUTE DANGER ZONE ESCAPE ROUTE UNDERCUT (SINKCUT) FELLING TREES To fell a tree, observe all the safety regulations and proceed as follows: The chainsaw may be used to fell only trees with trunks which are smaller in diameter than the length of the guide bar. If the saw chain gets jammed, release it using a wooden wedge. Do not try to lever the saw out of the cut. When felling on a slope, always stand uphill of the tree. Check the tree for signs of damage or decay before felling. Decayed trees can split during felling and dead or loose branches could free themselves through the vibrations of the sawing action. Felling trees is dangerous and requires practice. If you are a beginner or inexperienced using chainsaws seek professional training. First determine the likely direction of fall using the following criteria: The intended direction of fall. The wind direction and wind speed. The natural lean of the tree. Slope of the ground. Any surrounding tree or building which may obstruct, deflect or cause the falling tree to change direction. Any other factors, such as uneven branch configuration which could cause the tree to be heavier on one side than the other. Once the direction of fall is determined, clear two escape routes. These should be in the opposite direction to the planned direction of fall and approximately at 45 to the position of the undercut. Ensure that tools and equipment do not block the escape routes at any time. Further precautions to be taken when felling trees: Take extra care when felling in the vicinity of power lines, railway lines and roads. If the tree felling is too dangerous to perform due to these hazards, do NOT proceed with the felling and seek professional advice from a qualified arborist. Always ensure a work area of 2½ tree lengths is clear of people around the tree. Trees with large buttress roots may require the buttress root to be cut before felling. To do this cut vertically into the buttress root and then horizontally until the buttress root becomes loose and can be removed. Felling: The chainsaw must be running before it comes into contact with the wood. Switch on the chainsaw. Saw a notch (remove a 45 wedge of trunk) up to ¼ of the depth of the trunk into a low part of the tree trunk in the direction of the fall and then remove the loose piece. 19

20 Sawing Felling: (continued) Make a horizontal cut on the side opposite to the notch; ensuring approximately a tenth of the diameter of the trunk is not sawn, forming a hinge which will allow the tree to fall in a controlled manner. Do NOT cut all the way through the hinge as this could de-stabilise the falling tree. Always stand to the side of the falling tree, never behind it. When the tree begins to fall, remove the chainsaw, switch the chainsaw off, call a warning of Timber, and retreat through the cleared escape route. Beware of falling limbs as you retreat. When the tree falls, watch the crown. Wait for the crown to stop moving. Do NOT continue to work under branches which have got stuck and possibly support the weight of the crown. (F17) (F18) (F19) Bucking and Limbing Bucking is cutting a fallen log into smaller lengths. Limbing is the removal of branches from a fallen tree. Always ensure you have a firm foothold. Do not stand on the log. Be alert to the rolling over of a cut log. Especially when working on a slope, stand on the uphill side of the log. Follow the instructions in For Safe Operation p.7-8 to avoid kickback of the chainsaw. Before starting work, check the direction of bending force inside the log to be cut. Always finish cutting from the opposite side of bending direction to prevent the guide bar from being caught in the cut. A log lying on the ground (F17) Saw down half way, then roll the log over and cut from the opposite side. A log hanging off the ground (F18) In area A, saw up from the bottom one-third and finish by sawing down from the top. In area B, saw down from the top one-third and finish by sawing up from the bottom. Cutting limb of fallen tree (F19) First check to which side the limb is bent. Then make the initial cut from the bent side and finish by sawing from the opposite side. 20

21 Sawing Be alert to the springing back of a cut limb. Pruning of Standing Tree (F20) Cut up from the bottom, finish down from the top. (F20) BUCKING TECHNIQUES Log supported along entire length. Log supported on one end, proceed as if using a saw horse. Log supported on both ends. Cut up from beneath the buck being careful not to cut into the ground. First, make an insertion from beneath, cutting up 1/3 of the buck diameter to avoid splintering. Secondly, cut from above the buck to meet the first insertion. Avoid pinching. Make a cut from above the buck of 1/3 of the buck diameter, equidistant between the supports at each end, to avoid splintering. Cut up from beneath to meet the first cut. Avoid pinching. Note: The best way to hold a log while bucking is to use a saw horse. When this is not possible, the log should be raised and supported by limb stumps or by using supporting logs. Ensure the log being cut is securely supported. Do not use an unstable foothold or ladder. Do not overreach. Do not cut above shoulder height. Always use both hands to grip the chainsaw. Do not stand on a log you are cutting. BUCKING USING A SAW HORSE 1. Hold the chainsaw firmly with both hands and keep the saw to the right of your body while cutting. 2. Keep the left arm as straight as possible. 3. Keep weight on both feet. The chainsaw should only be used when the buck has sturdy, reliable support. The machine should be held to the right of the body, at a safe distance. The chain needs to be moving at full speed before coming into contact with the wood. When this has been achieved, the machine should be fixed to the wood using dogs. During cutting this support should be used as a lever. Hold the chainsaw firmly with both hands and keep the chainsaw to the right of your body while cutting. Keep the left arm as straight as possible. Keep weight on both feet. SKATING /BOUNCING When the chainsaw fails to dig in during a cut, the guide bar can begin hopping or dangerously skidding along the surface of the log or branch, possibly resulting in the loss of control of the chainsaw. To prevent or reduce skating or bouncing, hold the chainsaw with two hands and make sure the saw chain establishes a groove for cutting. 21

22 Maintenance (F21) (1) (F22) (F23) (F24) Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair establishment or individual. Before cleaning, inspecting or repairing your unit, make sure that engine has stopped and is cool. Disconnect the spark plug to prevent accidental starting. MAINTENANCE AFTER EACH USE 1. Air filter Unscrew the cover using the knob on the top (1). Dust on the filter surface can be removed by tapping a corner of the filter against a hard surface. To clean dirt in the mesh, split the filter into halves and rinse with petrol. When using compressed air, blow from the inside (F21). To assemble the filter halves, press together until they click. When installing the air cleaner cover, make sure that the grooves on the filter edge fit correctly with the projections on the cylinder cover. 2. Oiling port Dismount the guide bar and check the oiling port for clogging (F22). (1) Oiling port 3. Guide bar When the guide bar is removed, clean sawdust from the bar groove and the oiling port (F23). Grease the nose sprocket from the feeding port on the tip of the bar (F24). (1) Oiling port (2) Grease port (3) Sprocket Check for fuel leakage and loose fastenings and damage to major parts, especially handle joints and guide bar mounting and muffler. If any defects are found, make sure to have them repaired before operating again. 22

23 Maintenance (F25) (F26) PERIODICAL SERVICE POINTS 1. Air cooling system Dust clogging around the cooling system and the cylinder fins will cause overheating of the engine. Periodically check and clean the cooling system and the cylinder fins with a brush after removing the cylinder cover, the air cleaner and the recoil case. When installing the cylinder cover and the cooling system, make sure that switch wires and grommets are positioned correctly in place (F25). Note After removing the spark plug, be sure to block the air intake hole. 1. Using a wire hook, take out the filter from the filter port (26). 2. Disassemble the filter and wash with petrol, or replace with a new one if needed. (1) Fuel filter Note After removing the filter, use a pinch to hold the end of the suction pipe. When assembling the filter, take care not to allow filter fibres or dust inside the suction pipe. 23

24 Maintenance (F27) (F28) (F29) 2. Oil tank (a) Using a wire hook, take out the filter from the filler port (F27). (2) Oil filter (b) Disassemble the filter and wash with petrol, or replace with new one if needed. When putting the filter back into the tank, make sure that it is fitted correctly. Also clean off any dirt in the tank. (c) Fuel Filter Disassemble the filter and wash with petrol, or replace with new one if needed. (d) Front and rear dampers Replace if adhered part is cracked or peeled. 4. Spark plug Clean the electrodes with a wire brush and reset the gap to.025in as necessary (F28). 5. Sprocket Check for cracks and for excessive wear interfering with the chain drive. If the wearing is found obviously, replace it with new one. Never fit a new chain on a worn sprocket, or a worn chain on a new sprocket (F29). 24

25 Maintenance of Saw Chain and Guide Bar (F30) (F31) SAW CHAIN It is very important for smooth and safe operation to always keep the cutters sharp. Your cutters need to be sharpened when: Sawdust becomes powder-like. You need extra force to saw in. The cut does not go straight. Vibration increases. Fuel consumption increases. Cutter setting standards: Be sure to wear safety gloves. Before filing: Make sure the saw chain is held securely. Make sure the engine is stopped. Use a round file of proper size for your chain. Chain type: 21VB File size: 3/16in (4.76mm) Place your file on the cutter and push straight forward. Keep the file position (F30). After every cutter has been set, check the depth gauge and file it to the proper level (F31). Be sure to round off the front edge to reduce the chance of kickback or tie-strap breakage. (1) Appropriate gauge checker (2) Make the shoulder round (3) Depth gauge standard 25

26 Maintenance of Saw Chain and Guide Bar (F32) Make sure every cutter has the same length and edge angles (F32). (1) Cutter length (2) Filing angle (3) Side plate angle (4) Top plate cutting angle (F33) GUIDE BAR Reverse the bar occasionally to prevent partial wear. The bar rail should always be a square. Check for wear of the bar rail. Apply a ruler to the bar and the outside of a cutter. If a gap is observed between them, the rail is normal. Otherwise, the bar rail is worn. Such a bar needs to be corrected or replaced (F33). (1) Ruler (2) Gap (3) No gap (4) Chain tilts WARNING Only use replacement guide bars and chains that match exactly the originals supplied with your machine. Take the old parts to your dealer for checking and matching. Incorrectly matched parts may increase kickback forces and increase the risk of injury. 26

27 Troubleshooting Guide Case1. Starting failure Check fuel for water or sub-standard mixture. Check for engine flooding. Check the spark. Replace with proper fuel. Remove and dry the spark plug. Then pull the starter again with no choke. Replace with a new plug. Case 2. Lack of power/poor acceleration/rough idling Check fuel for water or sub-standard mixture. Check air filter and fuel filter for clogging. Check carburetor for inadequate adjustment. Check muffler and cylinder (exhaust port). Replace with proper fuel. Clean. Readjust speed needles. Wipe away carbon build up. Case 3. Oil does not come out Check oil for sub-standard quality. Check oil passage and ports for clogging. Replace. Clean. Case 4. Chain problems Chain does not move. Chain brake. Check the chain brake and release if necessary. Poor cutting performance. Blunt saw chain. Sharpen or replace the saw chain. Chain tension. Saw chain fitted incorrectly. Check chain tension. Check saw chain direction. Chain jumps off guide bar. Chain tension. Check chain tension. Chain works with difficulty. Chain tension. Check chain tension. Chain becomes hot. Chain lubricant. Check oil level. Check chain lubrication. When your unit seems to need further service, please consult with your dealer in your area. 27

28 STORAGE Aged fuel is one of major causes of engine starting failure. Before storing the unit, empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and the carburetor. Store the unit indoors taking necessary measures for rust prevention. If storing for an extended period, remove the chain and guide bar and protect with anti-corrosion oil before storing. PACKAGING DISPOSAL: Dispose of the packaging at your local recycling centre. Dispose of paper and carton separately from plastic bags at your local recycling centre. Dispose of the item at the end of its lifespan at your local authorised household waste recycling centre. EC DECLARATION OF CONFORMITY We The Enterprise Department Ltd. Of 11 Bridge Street, Bishop s Stortford, Hertfordshire, UK. CM23 2JU in accordance with the following Directive(s): Electromagnetic Compatibility 2004/108/EC EN 55012: A1: 2005 Machinery Safety Directive 2006/42/EC hereby declare that: Petrol Chainsaw Model number: 9028 Batch Number: is in conformity with the applicable requirements of the following documents Ref. No. Title EN ISO Mechanical Structure and Safety of Machinery EN ISO EN ISO Chainsaws EN ISO Safety Distances EN ISO Risk Assesment I hereby declare that the equipment named above has been designed to comply with the relevant sections of the above referenced specifications. The unit complies with all applicable Essential Requirements of the Directives. Mr. Stuart Fowler Imports Director RETURNS OR FAULTS Please do not return this item for any reason without first calling the Customer Service number