SEV 2416 Q - Saw STIGA - Free user manual and instructions

USER MANUAL SEV 2416 Q STIGA

WARNING: read thoroughly the instruction booklet before using

INTRODUCTION 1 Dear Customer, thank you for choosing one of our products. We hope that you will be completely satisfied with this machine and that it fully meets your expectations. This manual has been compiled in order to provide you with all the information you need to get acquainted with the machine and use it safely and efficiently. Don’t forget that it is an integral part of the machine, so keep it handy so that it can be consulted when necessary, and pass it on to a further user if you resell or loan the machine. Your new machine has been designed and manufactured in pursuance with current regulations, and is safe and reliable if used in compliance with the instructions provided in this manual (proper use). Using the ma- chine in any other way, or non-compliance with the safety specifications relative to use, maintenance and repair is considered "improper use" which will invalidate the warranty, relieve the manufacturer from all li- abilities, and the user will consequently be liable for all and any damage or injury to himself or others. Since we regular improve our products, you may find slight differences between your machine and the de- scriptions contained in this manual. Modifications can be made to the machine without notice and without the obligation to update the manual, although the essential safety and function characteristics will remain unaltered. In case of any doubts, please contact your dealer. And now enjoy your work!

Do not dispose of electrical equipment together with household waste material. In observance of European Directive 2002/96/EC on waste electrical and electronic equipment and its implementation in accordance with national law, electric equipment that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwa- ter and get into the foodchain, damaging your health and well-being. For further information on the disposal of this product, con- tact your dealer or a domestic waste collection Service. MAIN COMPONENTS

16. Extension lead connection

21. Chain oil tank cap

IDENTIFICATION PLATE 10.1) Conformity marking in accordance with Directive 2006/42/EC 10.2) Name and address of the manufacturer 10.3) Acoustic output level LWA in accordance with directive 2000/14/EC 10.4) Manufacturer’s model of reference 10.5) Machine model 10.6) Serial number 10.7) Year of manufacture 10.8) Power supply frequency and voltage 10.9) Engine power 10.10) Dual insulation 10.11) Article Code 10.12) Manufacturing country 10.13) Maximum permitted length of the bar. Do not use longer bars.

aximum noise and vibration levels [1]

TECHNICAL SPECIFICATIONS Voltage V~ 230 Power frequency Hz 50 Motor power W 2400 Bar length mm / “ 405 mm 16” Chain speed m/sec 13.5 Weight kg 5.3 Oil ml 230 [1] Notice: The vibration value indicated was determined with a standardized tool and can be used to make comparisons with other electric equipment as well as temporary estimates of the load through the vibrations. WARNING! The vibration value may vary according to the usage of the machine and its fitted equipment, and be higher than the one indicated. Safety meas- ures must be established to protect the user and must be based on the load estimate generated by the vibrations in real usage conditions. In this regard, all the operational cycle phases must be taken into consideration, such as switching off or idle running.

1) Read the instruction manual before using the

2) 3) If you are using the machine every day in

normal conditions, you can be exposed to a noise level of 85 dB (A) or higher. Wear safety glasses and hearing protection.

11) Direction in which the

12) Direction in which the

4) Do not leave the machine in the rain (or in damp

5) Unplug the chain-saw immediately if the cable

(or extension lead) is cut or damaged.

6) Maximum permitted length of the bar. Do not

use longer bars. EXPLANATORY SYMBOLS

OW TO READ THE MANUAL

Certain paragraphs in the manual contain particularly significant information and are marked with various levels of highlighting with

he following meaning:

These give details or further informa- tion on what has already been said, in the aim to prevent dam- age to the machine. Non-observance will result in the risk of injury to oneself or others. Non-observance will result in the risk of serious injury or death to oneself or others.

GENERAL POWER TOOL SAFETY WARNINGS

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference. The term “power tool” in the warnings refers to your mains-operated (corded) power tool.

a) Keep work area clean and well lit. Dirty or cluttered areas invite accidents. b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes. c) Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

2) Electrical safety

a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock. b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded. c) Do not expose power tools to rain or wet conditions. Wa- ter entering a power tool will increase the risk of electric shock. d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock. e) When operating a power tool outdoors, use an exten- sion cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock. DANGER! WARNING! WARNING! IMPORTANT NOTE

) If operating a power tool in a damp location is unavoid- able, use a residual current device (RCD) protected sup- ply. Use of an RCD reduces the risk of electric shock.

) Personal safety a) Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power

ool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while op- erating power tools may result in serious personal injury. b) Wear protective clothing. Always wear protective gog- gles. Using personal protective equipment such as dust mask, non-skid safety shoes, safety helmets or hearing pro- tectors will reduce personal injuries. c) Prevent unintentional starting. Ensure the switch is in the «off»-position before connecting to power source, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch «ON» invites accidents. d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a ro- tating part of the power tool may result in personal injury. e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in un- expected situations. f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts. g) If devices are provided for the connection of dust ex- traction and collection facilities, ensure these are con- nected and properly used. Use of dust collection can re- duce dust-related hazards.

4) Power tool use and care

a) Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed. b) Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired. c) Disconnect the plug from the power source before mak- ing any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally. d) Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users. e) Maintain power tools. Check for misalignment or bind- ing of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools. f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g) Use the power tool, accessories and tool bits etc. in ac- cordance with these instructions, taking into account 4 SAFETY WARNINGS

3. SAFETY WARNINGSthe working conditions and the work to be performed.

Use of the power tool for operations different from those in-

ended could result in a hazardous situation.

) Have your power tool serviced by a qualified repair per-

on using only identical replacement parts. This will en- sure that the safety of the power tool is maintained. CHAIN SAW SAFETY WARNINGS:

• Keep all parts of the body away from the saw chain when the chain saw is operating. Before you start the chain saw, make sure the saw chain is not contacting any- thing. A moment of inattention while operating chain saws may cause entanglement of your clothing or body with the saw chain.

• Always hold the chain saw with your right hand on the rear handle and your left hand on the front handle. Hold- ing the chain saw with a reversed hand configuration increases the risk of personal injury and should never be done.

• Wear safety glasses and hearing protection. Further pro- tective equipment for head, hands, legs and feet is rec- ommended. Adequate protective clothing will reduce per- sonal injury by flying debris or accidental contact with the saw chain.

• Do not operate a chain saw in a tree. Operation of a chain saw while up in a tree may result in personal injury.

• Always keep proper footing and operate the chain saw only when standing on fixed, secure and level surface. Slippery or unstable surfaces such as ladders may cause a loss of balance or control of the chain saw.

• When cutting a limb that is under tension be alert for spring back. When the tension in the wood fibres is released the spring loaded limb may strike the operator and/or throw the chain saw out of control.

• Use extreme caution when cutting brush and saplings. The slender material may catch the saw chain and be whipped toward you or pull you off balance.

• Carry the chain saw by the front handle with the chain saw switched off and away from your body. When trans- porting or storing the chain saw always fit the guide bar cover. Proper handling of the chain saw will reduce the likeli- hood of accidental contact with the moving saw chain.

• Follow instructions for lubricating, chain tensioning and changing accessories. Improperly tensioned or lubricated chain may either break or increase the chance for kickback.

• Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control.

• Cut wood only. Do not use chain saw for purposes not in- tended. For example: do not use chain saw for cutting plastic, masonry or non-wood building materials. Use of the chain saw for operations different than intended could re- sult in a hazardous situation.

CAUSES AND OPERATOR PREVENTION

OF KICKBACK: 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 sudden reverse reaction, kicking the guide bar up and back towards the operator.

inching the saw chain along the top of the guide bar may push

he guide bar rapidly back towards the operator. Either of these reactions may cause you to loose control of the

aw which could result in serious personal injury. Do not rely ex-

lusively upon the safety devices built into your saw.

s a chain saw user, you should take several steps to keep

our cutting jobs free from accident or injury. Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:

• Maintain a firm grip, with thumbs and fingers encircling the chain saw handles, with both hands on the saw and position your body and arm to allow you to resist kick- back forces. Kickback forces can be controlled by the oper- ator, if proper precautions are taken. Do not let go of the chain saw.

• Do not overreach and do not cut above shoulder height. This helps prevent unintended tip contact and enables better control of the chain saw in unexpected situations.

• Only use replacement bars and chains specified by the manufacturer. Incorrect replacement bars and chains may cause chain breakage and/or kickback.

• Follow the manufacturer's sharpening and maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.

• Techniques for using the electric chain-saw Always observe the safety regulations and use the most suitable sawing techniques (see chapter 7 for instructions and examples). Arrange the power cable so that it does not get tangled in branches or other obstacles.

• Safe carrying of the saw Whenever the machine is to be handled or transported you must: – turn off the engine, wait for the chain to stop and unplug the machine from the mains; – mount the bar cover; – only hold the machine using the handgrips and position the bar in the opposite direction to that used during operation. When using a vehicle to transport the machine, position it so that it can cause no danger to persons and fasten it firmly.

• Recommendation for the first-time users Before felling or delimbing for the first time, make sure: – you have been specifically trained to use this type of equip- ment; – you have carefully read the safety regulations and user in- structions contained in this manual; – you practise first on logs on the ground or attached to trestles, in order to get familiar with the machine and the most suitable cutting techniques. SAFETY WARNINGS 5

EN1. PACKAGING CONTENTS

The packaging contains: – power unit, – bar, – chain, – bar cover, – bag containing documents. The machine is supplied with the bar and chain dismantled and the oil tank empty. Unpacking and complet- ing the assembly should be done on a flat and stable surface, with enough space for machi- ne handling and its packaging, always making use of suitable equipment. Disposal of the packaging should be done in accordance with the local regulations in force.

2. BAR AND CHAIN MOUNTING

Always wear heavy-duty gloves when handling the bar and chain. Mount the bar and chain very carefully so as not to impair the safety and efficiency of the m- achine. If in doubt, contact your dealer. WARNING! WARNING! IMPORTANT Before fitting the bar, make sure the chain brake is not engaged; this is done by pulling the front hand guard right back towards the body of the machine. Make sure the machine is not plugged into the mains socket. – Unscrew the handle (1) and remove the guard to get to the drive sprocket and the point where the bar is fitted (Fig. 1). – Mount the chain in the right direction on the bar. If the tip of the bar has a nose sprocket, make sure the drive links are correctly inserted in the sprocket rims (Fig. 2). – Mount the bar (2) inserting the stud bolt in the bar’s slot using the tension adjuster (2a); move the bar towards the back of the machine body (Fig. 3). – Wind the chain around the drive sprocket (Fig. 4) and push the bar forward to achieve an initial ten- sioning of the chain. – Fit the guard back on, screwing on the knob (1) without tightening it. – Turn the ring (3) clockwise until you find the right chain tension (Fig. 5). – Raise the bar and tighten the knob (1) securely (Fig. 6). WARNING!

1. CHECKING THE MACHINE

Make sure the machine is not plugged into the mains socket. Before starting work please: – check that the mains frequency and voltage is the same as the rating data on the “identification plate” (see chap. 1 - 10.8); – ccheck that all the screws on the machine and the bar are tightly fastened; – check that the chain is tensioned correctly, sharp and there are no signs of any damage; WARNING! – check that handgrips and protection devices are clean and dry, correctly mounted and well fas- tened to the machine; – check that the chain brake is working efficiently; – check that the trigger switch and the safety but- ton should move freely without forcing and return automatically and rapidly back to their neutral po- sition; – check that the trigger switch must remain locked until the safety button is pressed; – make sure the cooling air vents are not clogged up with sawdust or debris; – check that the power cable and extension lead are not damaged; – check that the chain’s oil level is not below the «MIN» level mark and top up to 1 cm from the rim of the filler if necessary.

2. CHECKING THE CHAIN TENSION

Make sure the machine is not plugged into the mains socket. – Loosen the handle (1). (Fig. 5). – Turn the ring-nut (3) to obtain the desired chain tension level (Fig. 5). – Raise the bar and tighten the handle (1) securely (Fig. 6). The tension is correct when the drive links do not slip out of the chain guides if you hold the chain in the middle of the bar (Fig. 7). Loosen the brake by pressing both the switch and the safety button. Using a screwdriver, run the chain along the guides to check that it moves smoothly.

3. CHECKING THE CHAIN BRAKE

This machine is equipped with a double braking system that intervenes in two situations: a) When the switch lever is released, a brake is automatically activated that slows and stops chain movement, in order to prevent the risk of injury should the chain continue to turn after it has been switched off. b) In the event of a kickback while working, following an irregular contact of the tip of the bar, with a brusque upward movement that causes the hand to strike the front guard. In this case, the brake blocks chain movement and must be released manually in order to disen- gage it. This brake can be operated manually by pushing the front guard forward. To release the brake, pull the front guard towards the handgrip until you hear a click. To check that the brake works efficiently, proceed as follows: – Start the engine by holding the front handgrip and push the front hand guard forwards with your thumb (towards the bar). – When the brake is engaged, release the trigger switch. The chain must stop as soon as the brake is en- gaged. WARNING! Do not use the machine if the chain brake does not function correctly and have it inspected by your dealer.

Only use chain-saw oil or ad- hesive oil for chain-saws. Do not use oil containing impurities, to avoid clogging the tank filter and per- manently damaging the oiler. The chain lubricating oil is bio-degradable. The use of mineral oil or engine oil can have a serious impact on the environment. It is essential that you use good quality oil to lubri- cate the cutting parts effectively. Used or poor quality oil does not guarantee good lubrication and reduces the duration of the chain and bar. Before each machine use, the oil level should be checked and topped up to 1 cm from the rim of the filler. The oil level must not drop below the «MIN» level mark. To top up with oil, it is rec- ommended to lie the machine on its right side, so that the filler spout is in a vertical position.

5. ELECTRICAL CONNECTIONS

Electricity and moisture are not compatible. – Always handle and connect electric cables in dry conditions. – Keep electric sockets or cables away from wet and damp areas (e.g. puddles or wet ground). The quality of the extension leads must be no less than H07RN-F or H07VV-F, with a minimum sec- tion of 1.5 mm

and a recommended maximum length of 30 m. To avoid overheating, do not keep the extension lead rolled up during use. DANGER! NOTE IMPORTANT IMPORTANT IMPORTANT WARNING!For personal safety and that of others:

1) Do not use the machine without reading

the instructions carefully. Become ac- quainted with the controls and the proper use of the machine. Learn how to stop the engine quickly.

2) Only use the machine for the purpose for

which it was designed, that is for “felling, bucking and delimbing trees with dimensions suitable for the length of the bar” or wooden objects with the same characteristics. Any other use, such as using accessories not specified in this manual, may be haz- WARNING! ardous and also damage the machine. Ex- amples of improper use may include, but are not limited to: – trimming hedges; – intaglio carving; – sectioning pallets, crates and various packing materials; – sectioning furniture or other materials with nails, screws or other metal com- ponents; – butchering meat; – using the machine to lift, move or split objects; – using the machine while fastened to fixed supports.

3) Keep in mind that the operator or user is

responsible for accidents or hazards oc- curring to other people or their property.

When you release the switch, the safety button is also released and the engine stops. The chain may take one second to come to a stop after the engine is switched off.

To stop the engine: – Release the switch (7). – FIRST unplug the extension lead (3) from the mains socket (4) and THEN disconnect the power cable (2) of the machine from the exten- sion lead (3). NOTE WARNING! STARTING THE ENGINE (Fig. 12) Before starting the engine: – Fasten the extension lead (1) to the cable clamp on the rear handgrip. – FIRST connect the power cable plug (2) to the extension lead (3) and THEN plug the exten- sion lead into the mains socket (4). – Take off the bar cover. – Make sure the bar is not touching the ground or any other object To start the engine (Fig. 12):

1. Disengage the chain brake (5) by pulling the

front hand guard towards the front handgrip.

2. Hold the chain-saw firmly with both hands.

3. Press the safety button (6) and then the switch

The permanent connec- tion of any electrical equipment to the mains of a building must be installed by a qualified electrician in conformity with the regulations in force. Incorrect wiring can cause serious in- jury and even death. Supply power to the ma- chine using a differential switch (RCD - Resid- ual Current Device) with a tripping current of max. 30 mA. DANGER! DANGER! To prevent power supply outages: – make sure that the electric system’s overall ca- pacity is adequate; – connect the machine to a mains socket with suf- ficient amperage; – avoid simultaneous use of other electrical appli- ances with high power consumption. IMPORTANT

7. USING THE MACHINE4) Always wear suitable clothing when using

the machine. Your dealer can provide you with all the information on the most suit- able accident-prevention devices to guar- antee your safety. Wear anti-vibration gloves. All the above-mentioned precau- tions do not however guarantee the pre- vention of certain risks – i.e. Raynaud’s phenomenon or Carpal tunnel syndrome. For operators who use this machine for prolonged periods, it is therefore recom- mended to have periodic check-ups on the hands and fingers. If any of the above mentioned symptoms should appear, please contact a physi- cian immediately.

5) This machine’s electrical system gener-

ates an average sized electromagnetic field, but it is not however possible to ex- clude the possibility of interference on any active or passive medical devices that operators may be wearing; this could be risky for their health conditions. All those using medical devices should always con- sult their GP, or the device manufacturer, before using this machine.

6) Mow only in daylight or good artificial

7) Take utmost care when working near me-

8) Keep the chain away from the electric ca-

ble. Use the cable clamp to prevent the ex- tension lead from disconnecting acciden- tally. Make sure it is connected to the socket without being forced. Never touch a live electric cable if it is poorly insu- lated. If the extension lead gets damaged during use, do not touch the cable and un- plug the extension lead immediately.

9) Take care not to hit the bar hard against

foreign objects or flying debris caused by the movement of the chain.

10) Stop the engine and unplug the machine

from the mains: – whenever you leave the machine unat- tended; – before cleaning, checking or servicing the machine; – after striking a foreign object. Inspect the machine for any damage and make repairs before restarting it again; – if the machine begins to abnormally vi- brate (Immediate look for the cause of the vibrations and take for necessary controls at a Specialised Centre). – when the machine is not in use. Always remember that an in- correctly used electric chain-saw may disturb oth- ers and have a serious impact on the environment. To respect people and the environment: – Avoid using the machine in environments or at times of the day when it may disturb others. – Scrupulously comply with local regulations and provisions for the disposal of waste materials after sawing. – Scrupulously comply with local regulations and provisions for the disposal of oils, damaged parts or any elements which have a strong impact on the environment. – A certain amount of chain lubricating oil is rele- ased into the environment when the machine is running, so only use biodegradable oils made specifically for this use. – To avoid the risk of fire, do not leave the machi- ne with the engine hot on leaves or dry grass. It takes specific training to use the machine for felling and delimbing.

1. CHECKS DURING WORK

• Checking the chain tension The chain tends to stretch gradually as you work, so you need to check its tension frequently. During the first period of use (or after replacing the chain), it must be checked more frequently due to settling of the chain. Never work with the chain loose, as it can be hazardous if the chain slips out of its guides. To adjust the chain tension, follow the instructions in Chapter 5.2.

• Cut-off during work Your machine is designed with an overload pro- tection with circuit breaker. If the chain saw is clogged (e.g. blocking of the cutting means, chain IMPORTANT IMPORTANT WARNING! WARNING!

ENEN teeth jammed, overload cutting) during the cutting operation, the overload circuit breaker will cut the mains power supply automatically to protect your chain saw. The circuit breaker will be ac- tivated when the cutting current is over 35-35A, and it can be reset manually by pressing the reset but- ton ( 1.15) 30 seconds after it has cooled com- pletely.

• Checking the oil delivery Never use the machine with- out lubrication! You can check the oil level in the tank through the transparent gauge. Make sure you fill up the oil tank every time you use the ma- chine. Make sure the bar and the chain are in place when you check the oil de- livery. Start the engine and check if the chain oil is deli- vered as shown in the figure (Fig. 13).

2. DIRECTIONS FOR USE AND CUTTING

TECHNIQUES Before felling or delimbing for the first time, practise sawing logs on the ground or on trestles, so that you can get familiar with the machine and the most suitable sawing techniques. Always hold the machine with both hands when sawing. Stop the engine immedia- tely if the chain stops during sawing. Beware of kickback, which can occur if the bar con- tacts an obstacle.

• Felling a tree – When bucking and felling operations are being performed by two or more persons at the same time, the felling operations should be separated IMPORTANT WARNING! WARNING! IMPORTANT WARNING! from the bucking operation by a distance of at least twice the height of the tree being felled. Trees should not be felled in a manner that would endanger any person, strike any utility line or cause any property damage. If the tree does make contact with any utility line, the com- pany should be notified immediately. – The chain saw operator should keep on the up- hill side of the terrain as the tree is likely to roll or slide downhill after it is felled. – An escape path should be planned and cleared as necessary before cuts are started. The e- scape path should extend back and diagonally to the rear of the expected line of fall as illustrated in Figure 15. – Before felling is started, consider the natural lean of the tree, the location of larger branches and the wind direction to judge which way the tree will fall. – Remove dirt, stones, loose bark, nails, staples and wire from the tree.

• Notching undercut Make the notch 1/3 the diameter of the tree, per- pendicular to the direction of falls as illustrated in Figure 16. Make the lower horizontal notching cut first. his will help to avoid pinching either the saw chain or the guide bar when the second notch is being made.

• Felling back cut – Make the felling back cut at least 50 mm higher than the horizontal notching cut as illustrated in Figure 16. Keep the felling back cut parallel to the horizontal notching cut. Make the felling back cut so enough wood is left to act as a hinge. The hinge wood keeps the tree from twisting and falling in the wrong direction. Do not cut through the hinge. – As the felling gets close to the hinge, the tree should begin to fall. If there is any chance that the tree may not fall in desired direction or it may rock back and bind the saw chain, stop cutting before the felling back cut is complete and use wedges of wood, plastic or aluminium to open the cut and drop the tree along the desired line of fall. – When the tree begins to fall remove the chain saw from the cut, stop the motor, put the chain saw down, then use the retreat path planned. Be alert for overhead limbs falling and watch your footing.

• Limbing a tree Limbing is removing the branches from a fallen tree. When limbing leave larger lower limbs to sup- port the log off the ground. Remove the small limbs in one cut as illustrated in Figure 17. Branches un- der tension should be cut from the bottom up to avoid binding the chain saw. Be careful of where the branches are lying on the ground, the risk of them being under tension, the direction the branch may go during cutting and the risk of the tree being unstable after the branch has been cut.

• Bucking a log Bucking is cutting a log into lengths. It is important to make sure your footing is firm and your weight is evenly distributed on both feet. When possible, the log should be raised and supported by the use of limbs, logs or chocks. Follow the simple direc- tions for easy cutting. – When the log is supported along its entire length as illustrated in Figure 18A, it is cut from the top (overbuck). – When the log is supported on one end, as illus- trated in Figure 18B, cut 1/3 the diameter from the underside (underbuck). Then make the fin- ished cut by overbucking to meet the first cut. – When the log is supported on both ends, as il- lustrated in Figure 18C, cut 1/3 the diameter from the top (overbuck). Then make the finished cut by underbucking the lower 2/3 to meet the first cut. – It is easier to saw a log using the spiked bumper (Figure 18D).

• Dig the spiked bumper into the log and use it as a pivot. Cut with an arched motion to make the bar penetrate the wood.

• Repeat several times if necessary, changing the point where you plant the spiked bumper. – When bucking on a slope always stand on the uphill side of the log, as illustrated in Figure 19. When "cutting through", to maintain complete control release the cutting pressure near the end of the cut without relaxing your grip on the chain saw handles. Don't let the chain contact the ground. After completing the cut, wait for the saw chain to stop before you move the chain saw. Always stop the motor before moving from tree to tree. WARNING!

3. END OF OPERATIONS

Make sure the machine is not plugged into the mains socket. When you have finished your work: – Switch off the engine as indicated above (Chap. 6). – Wait for the chain to stop and allow the machine to cool. – Remove any traces of sawdust or oil deposits from the chain. – If there is excessive dirt or resin build-up, disas- semble the chain and place it in a container with a specific cleanser. Then rinse it with clean wa- ter and treat it with a suitable anticorrosive spray, before reassembling on the machine. – Fit the bar cover before reassembling the ma- chine. Allow the engine to cool before storing in any enclosure. To reduce fire hazards, clean the machine thor- oughly to get rid of any sawdust, branches, leaves or excess grease, never leave contain- ers with the cut debris inside the storage area. WARNING! WARNING!For your safety and that of others: – Correct maintenance is essential to maintain the original efficiency and safety of the ma- chine over time. – Keep all nuts, bolts and screws tight to be sure the equipment is in safe working con- dition. – Never use the machine with worn or dam- aged parts. Damaged parts are to be re- placed and never repaired. – Only use original spare parts. Parts that are not of the same quality can seriously dam- age the equipment and compromise safety. During maintenance oper- ations: – Unplug the machine from the mains. – Use protective gloves when handling the bar and chain. – Keep the bar protection devices on, except when intervening directly on the bar or the chain. – Never dispose of oils or other polluting ma- terials in unauthorised places.

To avoid overheating and damage to the engine, al- ways keep the cooling air vents clean and free of sawdust and debris.

Regularly check the efficiency of the chain brake.

3. CHAIN SPROCKET (Fig. 20)

Regularly check the condition of the sprocket and replace it when wear exceeds 0.5 mm. Do not mount a new chain with a worn sprocket or vice-versa.

This is an important safety device that restrains the chain if it breaks or degrooves. WARNING! WARNING! Regularly check the condition of the chain catcher and replace it if it gets damaged.

Periodically check that all the nuts and screws are securely tightened and the handgrips are tightly fastened.

6. SHARPENING THE CHAIN

To ensure that the chain- saw works safely and efficiently, it is essential that the cutting components are well-sharp- ened. Any work on the chain and bar requires specific skills and special tools in order to do the work properly. For safety purposes, we recommend you contact your Dealer. Sharpening is necessary when:

• The sawdust looks like dust.

• Cutting becomes more difficult.

• The cut is not straight.

• Vibrations increase. A specialized centre will sharpen the chain using the right tools to ensure minimum removal of ma- terial and even sharpness on all the cutting edges. Replace the chain whenever: – The length of the cutting edges reduces to 5 mm or less; – There is too much play between the links and the rivets.

(Only if organic oil is used for the chain) The use of some types of organic oil may cause de- posits or fouling after a certain period of use. If this happens, before leaving the machine un- used for a long period of time: – disassemble the chain and the bar; – empty the oil tank; – pour a specific liquid cleanser in the tank, to about half the maximum level; WARNING!

– close the tank cap and operate the machine un- til all the cleanser runs out. Remember to fill with oil, before using the machine again.

To avoid asymmetrical wear on the bar, make sure it is turned over periodically. To keep the bar in perfect working order, proceed as follows (Fig. 21): – Grease the bearings on the nose sprocket (if present) with the syringe. – Clean the bar groove with the scraper. – Clean the lubrication holes. – With a flat file, remove burr from the edges and level off the guides. Replace the bar whenever (Fig. 21): – the groove is not as deep as the height of the drive links (which must never touch the bottom); – the inside of the guide is worn enough to make the chain lean to one side. To avoid asymmetrical wear on the bar, make sure it is turned over periodically. If it should be necessary to turn the bar over or re- place it, follow the instructions below (Fig. 22): – remove the casing, the chain and the bar, care- fully following the instructions provided in Chap. 4.2; – remove the screw (1) using a cross-head screw- driver and remove the tension adjuster (2), tak- ing care not to misplace the sealing ring (3); When initially assembled, a “threadlocker” was inserted on the screw thread to prevent it from accidentally working loose, this means that a certain amount of force will be needed to remove the screw; use a clamp to block the bar in place and always use a suitable sized screw- driver. – reassemble the tension adjuster (2) on the other side of the overturned bar, or on the new bar, making sure the rubber seal is inserted correctly (3); – apply a small amount of “threadlocker” on two or three screw threads (1) (following the instruc- IMPORTANT tions provided by the manufacturer), then tighten the screw as far as possible (1); – replace the bar, the chain and the casing, fol- lowing the instructions provided in chap. 4.2.

Check the condition of the electric cables regularly and replace them if they are worn or their insulation looks dam- aged. If the machine’s power cable is damaged, it can only be replaced with an original spare part by your dealer or an authorised service centre.

10. EXTRAORDINARY MAINTENANCE

All maintenance operations not foreseen in this manual must be performed exclusively by your dealer. All and any operations performed in unauthorised centres or by unqualified persons will totally inval- idate the warranty.

The machine must be stored in a dry place away from the elements and with the bar cover correctly fitted.

WARNING!14 TROUBLESHOOTING / ACCESSORIES

The table contains a list of all possible combina- tions between bar and chain, indicating those which may be used on each machine, marked with the symbol “ ”. In consideration that the selection, application and usage of bar and WARNING! chain are actions made solely by the user, the latter assumes responsibility for damages of any kind due to such actions. When in doubt or if lacking knowledge of the specificity of each bar or chain, contact your retailer or spe- cialised gardening centre.

Bar and chain combinations Pitch BAR CHAIN Inches Length Inches / cm Groove width Inches / mm Code Code 3/8” 16” / 40 cm 0,050” / 1,3 mm 123900368/0 4113765 Carefully reading the infor- mation in this Manual provides good machine no- tions and the guide allows you to identify and face the most common operating situations. For any other difficulty or problem, please contact an Au- thorised Service Centre.

• The machine does not start: – make sure there is current in the socket; – check that the power cable and extension lead are intact; – check that the switch works correctly; if this is not the case, contact your Dealer for a replacement;

• Poor performance – check the direction in which the chain is mount- ed, – check that the chain is correctly sharpened and/or for any worn or damaged parts (contact your Dealer concerning the most suitable inter- vention). IMPORTANT

• The chain does not turn: – make sure that the front guard is positioned fac- ing backwards.

• The oil does not flow: – make sure there is oil in the tank and flush it if necessary ( 8.7).

• Sparks form: – contact your Dealer for an inspection of the mo- tor and brushes.

INNEHÅLLSFÖRTECKNING

12 VEDLIKEHOLD OG LAGRING

8. VEDLIKEHOLD AV SVERDET

1. KONTROLY, KTERÉ JE TŘEBA PRO-

HU1. A CSOMAG TARTALMA