357XP - Chain saw HUSQVARNA - Free user manual and instructions
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USER MANUAL 357XP HUSQVARNA
Operator's manual 357XP/XPG, 357 XP E-tech 357XPG E-tech 359/G, 359 E-tech, 359G E-tech Please read the operators manual carefully and make sure you understand the instructions before using the machine.
Symbols on the machine: WARNING! Chain saws can be dangerous! Careless or incorrect use can resultin serious or fatal injury to the operator or others. Please read the operators manual carefully and make sure you understand the instructions before using the machine. Always wear: + Approved protective helmet + Approved hearing protection + Protective goggles or a visor This product is in accordance with applicable EC directives. Noise emission to the environment according to te European Community Directive. The machine's OR emission is specified in chapter Technical data and on label dl WARNING! Decompression valve: The valve is to reduce the pressure in the cylnder and make starting easier. You should always use the decompression valve when starting the machine. Ignition; choke: Set the choke control in the choke position. This should automatically setthe stop switch to the start position. Air purge n Adjustment of the oil pump If your machine bears this symbol itis equipped with a catalytic converter. +5 - Chain brake, activated (right) Chain brake, not activated ae (DO the machine refer to special certification requirements for certain markets.
Symbols in the operator’s manual: Switch offthe engine by moving the stop switch to the STOP position before carrying out any checks or maintenance. Alays wear approved protective gloves. Regular cleaning is required Visual check CIEMASES Protective goggles or a visor must be worn. Refuelling. Filing with oi and adjusting oil flow. The chain brake must be engaged when the chain saw is started WARNING! Kickback may occur when the nose or tip ofthe guide bar touches an object, and cause à lightning fast reverse reaction, kicking the guide bar up and towards the operator. May cause serious personal injury. DLS]E-|
Symbols on the machine: … Symbols in the operators manual: … CONTENTS Contents .. : INTRODUCTION Dear Customer, WHAT IS WHAT? What is what on the chain saw?
GENERAL SAFETY PRECAUTIONS
Before using a new chain saw Important …. Always use common sense Personal protective equipment Machine's safety equipment Cutting equipment … ASSEMBLY Fitting the bar and chain …. FUEL HANDLING Fuel Fuelling Fuel safety …
STARTING AND STOPPING
Starting and stopping …. WORKING TECHNIQUES Before use: … .. General working instructions How to avoid kickback … MAINTENANCE General …. : Carburettor adjustment … Carburettor with movement limiters . Carburettor without movement limiters Checking, maintaining and servicing chain saw safety equipment Mufler Starter Air fiter Spark plug … Lubricating the bar tip sprocket Needle bearing lubrication Adjustment of the oil pump Cooling system "Air Injection” centrifugal cleaning Winter use …. Heated handles Maintenance schedule … Technical data Technical data Bar and chain combinations . Saw chain fling and file gauges EC-declaration of conformity English - 3
INTRODUCTION Dear Customer, Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Karl XI ordered the construction ofa factory on the banks ofthe Husqvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the water- powered plant. During the more than 300 years of beeing, the Husqvarna factory has produced a lotof different products, from wood stoves to modern kitchen appliances, sewing machines, bicycles, motorcycles etc. In 1956, the first motor driven lawn mowers appeared, followed by chain saws in 1959, and itis within this area Husqvarna is working today. Today Husqvarna is one ofthe leading manufacturers in the world of forest and garden products, with quality as our highest priority. The business concept is to develop, manufacture and market motor driven products for forestry and gardening as well as for building and construction industry. Husqvama's aim is also to be in the front edge according to ergonomics, usabilty, security and environmental protection. Thatis the reason why we have developed many different features to provide our products within these areas. We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very long time to come. The purchase of one of our products gives you access to professional help with repairs and service whenever this may be necessary. the retailer who sells your machine is not one of our authorised dealers, ask for the address of your nearest service workshop. Itis our wish that you will be satisfied with your product and that it will be your companion for a long time. Think of this operators manual as a valuable document By following its’ content (using, service, maintenance etc) the life span and the second-hand value of the machine can be extended. If you will sell this machine, make sure thatthe buyer will get the operators manual. Thank you for using à Husqvarna product. Husqvarna AB has a policy of continuous product development and therefore reserves the rightto modify the design and appearance of products without prior notice.
WHAT IS WHAT? Whatis what on the chain saw? 1 Cylinder cover
3 Chain brake and front hand guard 4 Starter 5 Chain oiltank 6 Starterhandie
7. Adjuster screws carburettor
Spike bumper Chain catcher Clutch cover Rear handle with right hand guard Throttie control Throttle lockout Decompression valve (Model 359) Automatic decompression valve (Model 357XP) Combination spanner Chain tensioning screw Operators manual Transport guard Oil pump adjustment screw Switch for heated handle (Models 357XPG, 359G) Information and warning decal Product and serial number plate English - 5
Before using a new chain saw + Please read this manual carefully. + Checkthatthe cuttng equipmentis correctiy fitted and adjusted. See instructions under the heading Assembly. + Refuel and startthe chain saw. See the instructions under the headings Fuel Handling and Starting and Stopping. + Do notuse the chain saw until sufficient chain oil has reached the chain. See instructions underthe heading Lubricating cutting equipment. + Long-term exposure to noise can result in permanent hearing impairment. So always use approved hearing protection. WARNING! Under no circumstances may. the design of the machine be modified without the permission of the manufacturer. Always use genuine accessories. Non-authorized modifications and/or accessories can result in serious personal injury or the death of the operator or others. WARNING! À chain saw is a dangerous tool if used carelessly or incorrectiy and can cause serious, even fatal injuries. is very important that you read and understand the contents of this operators manual. WARNING The inside of the muffler contain chemicals that may be carcinogenic. Avoid contact with these elements in the event of a damaged muffler. WARNING! Long term inhalation of the engine’s exhaust fumes, chain oil mist and dust from sawdust can represent a health risk. WARNING !This machine produces an electromagnetic field during operation. This field may under some circumstances interfere with active or passive medical implants. To reduce the risk of serious or fatal injury, we recommend persons with medical implants to consult their physician and the medical implant manufacturer before operating this machine. DIE] BI >
WARNING! Never allow children to use or be in the vicinity of the machine. As the machine is equipped with a spring- loaded stop switch and can be started by low speed and force on the starter handle, even small children under some circumstances can produce the force necessary to startthe machine. This can mean a risk of serious personal injury. Therefore remove the spark plug cap when the machine is not under close supe!
Important IMPORTANT! This chain saw for forest service is designed for forest work such as felling, delimbing and cuttng You should only use the saw with the bar and chain combinations we recommend in the chapter Technical data. Never use the machine if you are fatigued, while under the influence of alcohol or drugs, medication or anything that could affect your vision, alertness, coordination or judgement. Wear personal protective equipment See instructions under the heading "Personal protective equipment’ Do not modify this productor use itifit appears to have been modified by others. Never use à machine thatis faulty. Carry outthe checks, maintenance and service instructions described in this manual. Some maintenance and service measures must be carried out by trained and qualified specialists See instructions under the heading Maintenance. Never use any accessories other than those recommended in this manual. See instructions under the headings Cuttng equipment and Technical data. CAUTION! Always wear protective glasses or a face visor to reduce the risk of injury from thrown objects. À chain saw is capable of throwing objects, such as wood chips, small pieces of wood, etc, at great force. This can result in serious injury, especially to the eyes. WARNING! Running an engine in a confined or badly ventilated area can result in death due to asphyxiation or carbon monoxide poisoning. WARNING! Faulty cutting equipment or the wrong combination of bar and saw chain increases the risk of kickback! Only use the bar/saw chain combinations we recommend, and follow the filing instructions. See instructions under the heading Technical data.
Always use common sense Itis not possible to cover every conceivable situation you can face when using à chain saw. Always exercise care and use your common sense. Avoid all situations which you consider to be beyond your capability. If you stil feel uncertain about operating procedures after reading these instructions, you should consult an expert before continuing. Do not hesitate to contact your dealer or us if you have any questions about the use of the chain saw. We will willingly be of service and provide you with advice as well as help you to use your chain saw both efficientiy and safely. Attend a training course in chain saw usage if possible. Your dealer, forestry school or your library can provide information about which training materials and courses are available. Work is constantiy in progress to improve the design and technology - improvements that increase your safety and efficiency. Visit your dealer regulariy to see whether you can benefit from new features that have been introduced. Personal protective equipment WARNING! Most chain saw accidents happen when the chain touches the operator. You must use approved personal protective equipment whenever you use the machine. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your dealer for help in choosing the right equipment. + Approved protective helmet + Hearing protection + Protective goggles or a visor + Gloves with saw protection +__ Trousers with saw protection + Boots with saw protection, steel toe-cap and non-slip sole + Always have a first aid Kitnearby. + Fire Extinguisher and Shovel Generally clothes should be close-fitng without restricting your freedom of movement. IMPORTANT! Sparks can come from the muffler, the bar and chain or other sources. Always have fire extinguishing tools available if you should need them. Help prevent forest fires Machine's safety equipment In this section the machines safety features and their function are explained. For inspection and maintenance see instructions underthe heading Checking, maintaining and servicing chain saw safety equipment. See instructions under the heading, What is what? to find where these parts are located on your machine. The life span ofthe machine can be reduced and the risk of accidents can increase if machine maintenance is not carried out correctly and if service and/or repars are not carried out professionall. f you need further information please contact your nearest service workshop. WARNING! Never use a machine with defective safety components. Safety equipment must be inspected and maintained. See instructions under the heading Checking, maintaining and servicing chain saw safety equipment. If your machine does not pass all the checks, take the saw to a servicing dealer for repai Chain brake and front hand guard Your chain saw is equipped with à chain brake that is designed to stop the chain if you geta kickback.The chain brake reduces the risk of accidents, but only you can prevent them English - 7
Take care when using your saw and make sure the kickback zone of the bar never touches any object
+ The chain brake (A) can either be activated manually by your left hand) or automatically by the inertia release mechanism. + The brake is applied when the front hand guard (B) is pushed forwards + This movement activates a spring-loaded mechanism that tightens the brake band (C) around the engine drive system (D) (clutch drum). + The fronthand guard is notdesigned solely to activate the chain brake. Another important feature is that it reduces the risk of your left hand hittng the chain if you lose grip of the front handle.
+ The chain brake must be engaged when the chain saw is started to preventthe saw chain from rotating + Use the chain brake as à ‘parking brake” when starting and when moving over short distances, to
reduce the risk of moving chain accidentally hitäng your leg or anyone or anything close by. + To release the chain brake pull the front hand guard backwards, towards the front handle. + Kickback can be very sudden and violent. Most kickbacks are minor and do not always activate the chain brake. Ifthis happens you should hold the chain saw firmly and not let go. + The way the chain brake is activated, either manually or automatically by the inertia release mechanism, depends on the force of the kickback and the position ofthe chain saw in relation to the object thatthe Kickback zone of the bar strikes If you geta violentkickback while the kickback zone of the bar is farthest away from you the chain brake is designed to be activated by the inertia in the kickback direction.
Ifthe kickback is less violent or the kickback zone of the bar is closer to you the chain brake will be activated manual by the movement of your lefthand.
+ Inthe fellng position the left hand is in a position that makes manual activation of the chain brake impossible. With this type of grip, that is when the left hand is placed so that it cannot affect the movement of the front hand guard, the chain brake can only be activated by the inertia action. Will my hand always activate the chain brake during a kickback? No.Ittakes a certain force to move the hand guard forward. f your hand oniy lighty touches the front guard or slips over it, the force may notbe enough to trigger the chain brake. You should also maintain a firm grip of the chain saw handles while working. f you do and experience a kickback, your hand may never leave the front handle and will not activate the chain brake, orthe chain brake will only activate after the saw has swung around a considerable distance. In such instances, the chain brake might not have enough time to stop the sawr chain before it touches you. There are also certain positions in which your hand cannot reach the front hand guard to activate the chain brake; for example, when the saw chain is held in felling position. Will my inertia activated chain brake always activate during kickback in the event of a kickback? No. First your brake must be in working order. Testing the brake is simple, see instructions under the heading Checking, maintaining and servicing chain saw safety equipment. We recommend you do before you begin each work session. Second the kickback must be strong enough to activate the chain brake. lfthe chain brake is too sensitive it would activate all the time which would be a nuisance Will my chain brake always protect me from injury in the event of a kickback? No. First, the chain brake must be in working order to provide the intended protection. Second, it must be activated during the kickback as described above to stop the saw chain. Third, the chain brake may be activated but ifthe bar is too close to you the brake might not have enough time to slow down and stop the chain before the chain saw hits you Only you and proper working technique can eliminate kickback and its danger. Throttle lockout The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock A) (ie.when you grasp the handle) itreleases the throttle control (B). When you release the handle the throttie control and the throttie lockout both move back to their original positions. This arrangement means that the throttle control is automatically locked atthe idle setting.
CR ( Chain catcher The chain catcheris designed to catchthe chain ifitsnaps or jumps off. This should not happen ifthe chain is properiy tensioned (see instructions under the heading Assembly) and ifthe bar and chain are properiy serviced and maintained (see instructions under the heading General working instructions). English - 9
Right hand guard Apart from protecting your hand ifthe chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle Vibration damping system Your machine is equipped with a vibration damping system thatis designed to minimize vibration and make operation easier. The machine’s vibration damping system reduces the transfer of vibration between the engine unit/cutting equipmentand the machine's handle unit. The body ofthe chain saw, including the cutting equipment, is insulated from the handles by vibration damping units. Cuting hardwoods (most broadieaf trees) creates more vibration than cutting sofaoods (most conifers). Cutting with cutting equipment that is blunt or faulty (wrong type or badly sharpened) will increase the vibration level WARNING! Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation. Contact your doctor if you experience symptoms of overexposure to vibration. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the fingers, hands or wrists. These symptoms may be increased in cold temperatures.
Stop switch Use the stop switch to switch off the engine.
Muffler The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user.
In areas with a hot, dry climate there is a high risk offires These areas are sometimes subject to government rules requiring among other things the muffler must be equipped with an approved type of spark arrestor mesh WARNING! The exhaust fumes from the engine are hot and may contain sparks which can start a fire. Never startthe machine indoors or near combustible material! CAUTION! The muffler gets very hot during and after use. This also applies during idling. Be aware ofthe fire hazard, especially when working near flammable substances and/or vapours.
WARNING! Never use a saw without a muffler, or with a damaged muffler. A damaged muffler may substantially increase the noise level and the fire hazard. Keep fire fighting equipment handy. If a spark arrestor screen is required in your area, never use the saw without or with a broken spark arrestor screen. Cutting equipment This section describes how to choose and maintain your cutting equipment in order to: + Reduce the risk of kickback. + Reduce the risk ofthe saw chain breaking or jumping offthe bar. + Obtain optimal cuttng performance. + Extend the life of cutting equipment.
+ Avoïd increasing vibration levels General rules + Onlyuse cutting equipmentrecommended by us! See instructions under the heading Technical data. Pou + Keep the chain’s cutting teeth properiy sharpened! Follow our instructions and use the recommended file gauge. À damaged or badly sharpened chain increases the risk of accidents + Maintain the correct depth gauge setting! Follow ourinstructions and use the recommended depth gauge clearance. Too large a clearance increases the risk of kickback. + Keep the chain properiy tensioned! Ifthe chain is slack itis more likely to jump off and lead to increased wear on the bar, chain and drive sprocket O- —— + Keep cutting equipment well lubricated and properly maintained! À pooriy lubricated chain is more likely to break and lead to increased wear on the bar, chain and drive sprocket. Cutting equipment designed to reduce kickback WARNING! Faulty cutting equipment or the wrong combination of bar and saw chain increases the risk of kickback! Only use the bar/saw chain combinations we recommend, and follow the filing instructions. See instructions under the heading Technical data. The only way to avoid kickback is to make sure thatthe Kickback zone of the bar never touches anything By using cuttng equipment with “bin” kickback reduction and Keeping the chain sharp and well- maintained you can reduce the effects of kickback. Bar The smaller the tip radius the lower the chance of kickback. Chain A chain is made up of a number of links, which are available in standard and low-kickback versions. IMPORTANT! No saw chain design eliminates the danger of kickback
Some terms that describe the bar and chain WARNING! Any contact with a rotating saw chain can cause extremely serious njuries. To maintain the safety features of the cutting equipment, you should replace a worn or damaged bar or chain with à bar and chain combinations recommended by Husqvarna. See instructions under the heading Technical Data for a list of replacement bar and chain combinations we recommend Bar + Length (inches/cm)
+ Chain pitch (inches). The spacing between the drive links ofthe chain must match the spacing ofthe teeth on the bar tip sprocket and drive sprocket 0 06 S rre-
+ Number of drive links. The number of drive links is determined by the length of the bar, the chain pitch and the number of teeth on the bar tip sprocket. + Bar groove width (inches/mm). The groove in the bar must match the width of the chain drive links
+ Chain oil hole and hole for chain tensioner. The bar must be matched to the chain saw design. Chain + Chain pitch (inches) © Jo PITCH INT
Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teeth +" Never use à blunt chain. When the chain is blunt you have to exert more pressure to force the bar through the wood and the chips will be very small. Ifthe chain is very bluntitwill produce wood powder and no chips or shavings + À sharp chain eats its way through the wood and produces long, thick chips or shavings. + The cutting part of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge (8). The cutters cutting depth is determined by the difference in height between the two (depth gauge setting).
When you sharpen a cutting tooth there are four important factors to remember. 1 Filing angle CA CZ Fes 2 Cutting angle
4 Round file diameter
Itis very difficult to sharpen a chain correctiy without the right equipment. We recommend that you use our file gauge. This will help you obtain the maximum kickback reduction and cuttng performance from your chain See instructions under the heading Technical data for information about sharpening your chain EAN Sharpening cutting teeth
SK? To sharpen cutting teeth you will need a round file and a file gauge. See instructions under the heading Technical data for information on the size of file and gauge that are recommended for the chain fitted to your chain saw. WARNING! Departure from the sharpening instructions considerably increases the risk of kickback.
Check that the chain is correctiy tensioned. À slack chain will move sideways, making it more difficult to sharpen correctiy.
Almys file cuttng teeth from the inside face. Reduce the pressure on the return stroke. File all the teeth on one side first, then turn the chain saw over and file the teeth on the other side.
File all the teeth to the same length. When the length ofthe cutting teeth is reduced to 4 mm (5/32") the chain is worn out and should be replaced' min 4 mm ee) N (5/32")
General advice on adjusting depth gauge setting When you sharpen the cuttng tooth (A) the depth gauge setting (C) will decrease. To maintain optimal cutting performance the depth gauge (B) has to be filed down to achieve the recommended depth gauge setting. See instructions under the heading Technical data to find the correct depth gauge setting for your particular chain
acheive the correct depth gauge setting and bevel for the depth gauge. + Place the depth gauge tool over the chain. Detailed information regarding the use ofthe depth gauge tool, will be found on the package for the depth gauge tool. Use the flatfile to fie offthe tip ofthe depth gauge that protrudes through the depth gauge tool. The depth gauge setting is correct when you no longer feel resistance as you draw the file along the depth gauge tool. Tensioning the chain
WARNING! À slack chain may jump off and cause serious or even fatal injury.
WARNINGIThe risk of kickback is increased if the depth gauge setting is too largel
Adjustment of depth gauge setting
The cutting teeth should be newly sharpened before adjusting the depth gauge setting. We recommend that you adjust the depth gauge setting every third time you sharpen the cutting teeth. NOTE! This recommendation assumes that the length of the cutting teeth is not reduced excessively. You will need a fat file and a depth gauge tool. We recommend that you use our depth gauge tool to The more you use a chain the longer it becomes. Itis therefore importantto adjustthe chain regulariy to take up the slack. Check the chain tension every time you refuel. NOTE! À new chain has à running-in period during which you should check the tension more frequentiy. Tension the chain as tightiy as possible, but not so tight that you cannot pull it round freely by hand + Undo the bar nuts that hold the clutch cover/chain brake. Use the combination spanner. Then tighten the bar nuts by hand as tight as you can + Raise the tip ofthe bar and stretch the chain by tightening the chain tensioning screw using the English - 13
combination spanner. Tighten the chain until it does notsag from the underside of the bar. + Use the combination spanner to tighten the bar nuts while lifting the tip of the bar atthe same time. Check that you can pull he chain round freely by hand and thatit does not sag from the underside of the bar. The position of the chain tensioning screw on our chain saws varies from model to model. See instructions under the heading What is what? to find out where itis on your model Lubricating cutting equipment WARNING! Poor lubrication of cutting equipment may cause the chain to snap, which could lead to serious, even fatal injuries. Chain oil Chain oil must demonstrate good adhesion to the chain and also maintain its flow characteristics regardless of whether it is warm summer or cold winter weather. AS à chain saw manufacturer we have developed an optimal chain oil which, with its vegetable oil base, is also biodegradable. We recommend the use of our own oil for both maximum chain life and to minimise environmental damage. if our own chain oil is not available, standard chain oil is recommended. Never use waste oil! Using waste oil can be dangerous to you and damage the machine and environment. IMPORTANT! When using vegetable based saw chain ol, dismantie and clean the groove in the bar and saw chain before long-term storage. Otherwise there is à risk ofthe saw chain oi oxidizing, which will resultin the saw chain becoming stiff and the bar tip sprocket jamming. Filling with chain oil + Allour chain saws have an automatic chain lubrication system. On some models the oil flow is also adjustable
+ The saw chain oil tank and the fuel tank are designed so that the fuel runs out before the saw chain oil. However, this safety feature requires that you use the right sort of chain oil (ifthe oil is too thin it wil run out before the fuel), and that you adjustthe carburetor as recommended {a lean mixture may mean thatthe fuel lasts longer than the oil) and that you also use the recommended cutting equipment (a bar that is too long will use more chain oil). Checking chain lubrication + Check the chain lubrication each time you refuel. See instructions under the heading Lubricating the bar tip sprocket. Aim the tip ofthe bar ata light coloured surface about 20 cm (8 inches) away. After 1 minute running at 3/4 throttie you should see a distinct line of oil on the light surface. Ifthe chain lubrication is not working + Checkthatthe oil channel in the baris notobstructed Clean if necessary. + Check thatthe groove in the edge ofthe baris clean. Clean if necessary.
+ Check that the bar tip sprocketturns freely and that the lubricating hole in the tip sprocket is not blocked Clean and lubricate if necessary. Ifthe chain lubrication system is still not working after carrying out the above checks and associated measures you should contact your service agent. Chain drive sprocket
EMO2 The clutch drum is fitted with one of the following drive sprockets. A Spur sprocket (the chain sprocket is welded on the drum) B_ Rim sprocket (replaceable) Regularly check the degree of wear on the drive sprocket. Replace if wear is excessive. Replace the drive sprocket whenever you replace the chain. Needle bearing lubrication
Both versions of sprockets have a needle bearing on the drive shaîft, which has to be greased regularly (once a week). CAUTION! Use a high-quality bearing grease or engine oil Checking wear on cutting equipment
Check the chain daily for: + Visible cracks in rivets and links. + Whetherthe chain is stiff. + Whether rivets and links are badiy worn. Replace the saw chain ifit exhibits any ofthe points above. We recommend you compare the existing chain with a new chain to decide how badiy the existing chain is worn When the length of the cuttng teeth has wo down to only 4 mm the chain must be replaced Bar
Check regulariy + Whether there are burrs on the edges ofthe bar. Remove these with a fll if necessary. + Whetherthe groove in the bar has become badly worn. Replace the bar ifnecessary. + Whether the tip ofthe bar is uneven or badiy worn. If à hollow forms on the underside of the bar tip this is due to running with a slack chain. English - 15
+ To prolong the life of the bar you should turn it over daily. WARNING! Most chain saw accidents happen when the chain touches the operator. Wear personal protective equipment. See instructions under the heading "Personal protective equipment”. Do nottackle any job that you feel you are not adequately trained for. See instructions under the headings Personal protective equipment, How to avoid kickback, Cutting equipment and General working instructions. Avoid situations where there is a risk of Kickback. See instructions under the heading Machine's safety equipment. Use the recommended protective equipmentand check its condition. See instructions under the heading General working instructions. Check that all the chain saw safety features are working. See instructions under the headings General working instructions and General safety precautions.
ASSEMBLY Fitting the bar and chain
WARNING! Always wear gloves, when working with the chain.
Check thatthe chain brake is in disengaged position by moving the front hand guard towards the front handle. Remove the bar nuts and remove the clutch cover (chain brake). Take off the transportation ring (A) Fitthe bar over the bar bolts. Place the bar in its rearmost position. Place the chain over the drive sprocket locate it in the groove on the bar. Begin on the top edge of the bar. 7/7.
Make sure thatthe edges ofthe cutting links are facing forward on the top edge of the bar. Fitthe clutch cover and locate the chain adjuster pin in the hole in the bar. Check that the drive links of the chain fit correctiy over the drive sprocket and that the chain is correctiy located in the groove in the bar. Tighten the bar nuts finger tight.
Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain should be tensioned until it does not sag from the underside ofthe bar. See instructions under the heading Tensioning the chain. The chain is correct tensioned when itdoes notsag from the underside of the bar, but can still be turned easily by hand. Hold up the bar tip and tighten the bar nuts with the combination spanner. When fitng à new chain, the chain tension has to be checked frequentiy until the chain is run-in. Check the chain tension regulariy. À correctly tensioned chain ensures good cutting performance and long life English - 17
FUEL HANDLING Fuel Note! The machine is equipped with a two-stroke engine and mustalways be run using à mixture of petrol and two- stroke oil. tis important to accurately measure the amount of oi to be mixed to ensure that the correct Mixing ratio 1:50 (2%) with HUSQVARNA two-stroke oil. 1:33 (3%) with oils class J ASO FB or1$O EGB formulated for air-cooled, two-stroke engines. mixture is obtained. When mixing small amounts of fuel, Petrol, litre Two-stroke oil, litre even small inaccuracies can drastically affectthe ratio of 2% (1:50) 3% (133) the mixture. 5 5,10 15 WARNING! Always ensure there is 10 0,20 0,30 ÂA adequate ventilation when handling fuel. || 5 T30 T4 20 0,40 0,60 + Use good quality unleaded or leaded petrol + CAUTION! Engines equipped with catalytic converters must be run on unleaded fuel mixtures. Leaded gasoline will destroy the catalytic converter and it wil! no longer serve its purpose. The green fuel cap on saus fited with catalytic converters means that only unleaded gasoline can be used. + _ The lowestrecommended octane grade is 90 (RON) If you run the engine on a lower octane grade than 90 S0-called knocking can occur. This gives rise to a high engine temperature and increased bearing load, which can result in serious engine damage. + When working with continuous high revs (e.g. imbing) & higher octane is recommended Environment fuel HUS QVARNA recommends the use ofalkylate fuel, either Aspen two-stroke fuel or environmental fuel for four-stroke engines blended with two-stroke oil as set out below. Note that carburettor adjustment may be necessary when changing the type of fuel (see the instructions under the heading Carburetton) Running-in Avoid running at a too high speed for extended periods during the first 10 hours: Two-stroke oil + Forbestresults and performance use HUSQVARNA two-stroke engine oil, which is special formulated for our air-cooled two-stroke engines + Never use two-stroke oil intended for water-cooled engines, sometimes referred to as outboard oil (rated TCW) + Never use oil intended for four-stroke engines. + À poor oil quality and/or too high oilfuel ratio may jeopardise function and decrease the life time of catalytic converters.
+ Always mix the petrol and oil in a clean container intended for fuel. + Always startby filing half the amount of the petrol to be used. Then add the entire amount of oil. Mix {shake) the fuel mixture. Add the remaining amount of petrol. + Mix (shake) the fuel mixture thoroughly before filing the machines fuel tank. + Do not mix more than one months supply of fuel at a time. + _Ifthe machine is not used for some time the fuel tank should be emptied and cleaned. Chain oil + We recommend the use of special oil (chain oil) with good adhesion characteristics + Neveruse waste oil. This results in damage to the oil pump, the bar and the chain. + Itis important to use oil of the right grade (suitable viscosity range) to suitthe air temperature.
FUEL HANDLING + In temperatures below 0°C (32°F) some oils become too viscous. This can overload the oil pump and result in damage to the oil pump components. + Contact your service agent when choosing chain oil. Fuelling
WARNING!Taking the following precautions, will lessen the risk of fire: Do not smoke and do not place any hot objects in the vicinity of fuel. Always stop the engine and let it cool for à few minutes before refuelling. When refuelling, open the fuel cap slowly so that any excess pressure is released gentiy. Tighten the fuel cap carefully after refuelling. Always move the machine away from the refuelling area before starting. Clean the area around the fuel cap. Clean the fuel and chain oil tanks regulariy. The fuel flter must be replaced at least once a year. Contamination in the tanks causes malfunction. Make sure the fuel is well mixed by shaking the container before refuelling.The capacities ofthe chain oil tank and fuel tank are carefully matched. You should therefore always fil the chain oil tank and fuel tank atthe same time. WARNING! Fuel and fuel vapour are highly flammable. Take care when handling fuel and chain oil. Be aware of the risks of fire, explosion and those associated with inhalation. Fuel safety + Neverrefuel the machine while the engine is running. + Make sure there is plenty of ventilation when refuelling or mixing fuel (petrol and 2-stroke oil) + Move the machine at least 3 m from the refuelling point before starting it. + Never startthe machine: 1 ifyou have spit fuel or chain oil on the machine. Wipe off the spillage and allow remaining fuel to evaporate. 2 _fyou have spilt fuel on yourself or your clothes, change your clothes. Wash any part of your body that has come in contact with fuel. Use soap and water. 3 _ifthe machine is leaking fuel. Check regulariy for leaks from the fuel cap and fuel lines. WARNING! Never use a machine with isible damage to the spark plug guard ition cable. À risk of sparking arises, which can cause a fire.
Transport and storage + Always store the chain saw and fuelso thatthere is no risk of leakages or fumes coming into contact with sparks or naked flames from electrical equipment, electric motors, relays/switches, boilers and the like. + Always store fuel in an approved container designed for that purpose. +__ For longer periods of storage or for transport of the chain saw, the fuel and chain oil tanks should be emptied. Ask where you can dispose of waste fuel and chain oil at your local petrol station. +__ The bar guard must always be fited to the cutting attachment when the machine is being transported or in storage, in order to prevent accident contact with the sharp chain. Even à non-moving chain can cause serious cuts to yourself or persons you bump into with an exposed chain + Secure the machine during transport. Long-term storage Empty the fuel/oiltanks in a well ventilated area. Store the fuel in approved cans in a safe place. Fitthe bar guard Clean the machine. See instructions under the heading Maintenance schedule. Ensure the machine is cleaned and that a complete service is carried out before long-term storage English - 19
Starting and stopping WARNING! Note the following before / N starting: The chain brake must be engaged when the chain saw is started to reduce the chance of contact with the moving chain during starting. Never start a chain saw unless the bar, chain and all covers are fitted correctiy. Otherwise the clutch can come loose and cause personal injuries. Place the machine on firm ground. Make sure you have a secure footing and that the chain cannottouch anything. Keep people and animals well away from the working area. Cold engine Starting: The chain brake must be engaged when the chain saw is started. Activate the brake by moving the front hand guard forwards. Ignition; choke: Set the choke control in the choke position. This should automatically setthe stop switch to the start position Start throttle: The correct choke/start throttie setting is obtained by moving the control to the choke position.
Ifthe machine is fitted with a decompression valve (A) Press the valve to reduce the pressure in the cylinder and make starting easier. You should always use the decompression valve when starting the machine. Once
the machine has started the valve will automatically return to its original setting. Warm engine Use the same procedure as for starting a cold engine but without seing the choke control in the choke position. The correct choke/start throttie setting is obtained by moving the choke control to the choke position and then pushing it in again.
Grip the front handle with your left hand. Hold the chain saw on the ground by placing your right foot through the rear handle. Pull the starter handle with your right hand and pull outthe starter cord slowly until you feel à resistance (as the starter pawls engage) then pull firmly and rapidly. Never twist the starter cord around your hand. CAUTION! Do not pull the starter cord all the way outand do not let go of the starter handle when the cord is fully extended. This can damage the machine. Push in the choke control as soon as the engine fires and Keep puling until the engine starts. When the engine starts, quickiy apply full throttle; the throttle start lock will automatically disengage.
As the chain brake is still engaged the speed ofthe engine mustbe set t idling as soon as possible, this is achieved by quickly disengaging the throttle lock. This prevents unnecessary wear to the clutch, clutch drum and brake band Note! Reactivate the chain brake by pushing the front hand guard back towards the front handle. The chain saw is now ready for use. WARNING! Long term inhalation of the engine’s exhaust fumes, chain oil mist and dust from sawdust can represent a health risk. Never start a chain saw unless the bar, chain and all covers are fited correctiy. See instructions under the heading Assembly. Without a bar and chain attached to the chain saw the clutch can come loose and cause serious injury. + The chain brake should be activated when starting. Se instructions under the heading Start and stop. Do not drop start. This method is very dangerous because you may lose control ofthe saw. + Neverstartthe machine indoors. Exhaust fumes can be dangerous if inhaled + Observe your surroundings and make sure that there is no risk of people or animals coming into contact with the cutting equipment. + Always hold the saw with both hands. The right hand should be on the rear handle, and the left hand on the front handle. All people, whether right or left handed, should use this grip. Use a firm grip with thumbs and fingers encircling the chain saw handles. The engine is stopped by pushing the stop switch to the stop position. English - 21
1 Checkthatthe chain brake works correctiy and is not damaged.
2. Check thatthe rear right hand guard is not damaged
3 Check thatthe throttle lockout works correctiy and is not damaged 4 Check thatthe stop switch works correct and is not damaged. 5 Check that all handles are free from oil. 6 Check tatthe anti vibration system works and is not damaged.
7. Check thatthe mufler is securely attached and not
damaged. 8 Check thatall parts ofthe chain saw are tightened correctiy and that they are not damaged or missing. 9 Check thatthe chain catcher is in place and not damaged. 10 Check the chain tension. General working instructions IMPORTANT! This section describes basic safety rules for using a chain saw. This information is never a substitute for professional skills and experience. If you get into a Situation where you feel unsafe, stop and seek expert advice. Contact your chain saw dealer, service agentor an experienced chain saw user. Do not attemptany task that you feel usure of! Before using a chain saw you must understand the effects of kickback and how to avoid them. See instructions under the heading How to avoid kickback. Before using a chain saw you must understand the difference between cutting with the top and bottom edges of the bar. See instructions under the headings How to avoid kickback and Machine's safety equipment. Wear personal protective equipment. See instructions under the heading “Personal protective equipment” Basic safety rules 1 Look around you
+ To ensure that people, animals or other things cannot affect your control ofthe machine + To make sure that none of the above might come within reach of your saw or be injured by falling trees.
97e CAUTION! Follow the instructions above, but do notuse a chain saw in a situation where you cannot call for help in case of an accident. 2 Do notuse the machine in bad weather, such as dense fog, heavy rain, strong wind, intense cold, etc Working in bad weather is tiring and often brings added risks, such as icy ground, unpredictable felling direction, etc.
3. Take great care when removing small branches and
avoid cuttng bushes (ie. cutng many small branches atthe same time). Small branches can be grabbed by the chain and thrown back at you, causing serious injury. 4 Make sure you can move and stand safely, Check the area around you for possible obstacles (roots, rocks, branches, ditches, etc.) in case you have to move suddeniy. Take great care when working on sloping ground 5 Take great care when cutting a tree that is in tension. A tree that is in tension may spring back to its normal position before or after being cut. If you position yourselfincorrectiy or make the cutin the wrong place the tree may hit you or the machine and cause you to
WORKING TECHNIQUES lose control. Both situations can cause serious personal injury.
6 Before moving your chain saw switch off the engine and lock the chain using the chain brake. Carry the chain saw with the bar and chain pointing backwards. Fita guard to the bar before transporting the chain saw or carrying it for any distance.
7. When you putthe chain saw on the ground, lock the
saw chain using the chain brake and ensure you have à constant view ofthe machine. Switch the engine off before leaving your chain saw for any length of time. WARNING! Sometimes chips getstuck in the clutch cover causing the chain to jam. Always stop the engine before cleaning.
General rules 1 lfyouunderstandwhatkickbackis and how ithappens then you can reduce or eliminate the element of surprise. By being prepared you reduce the risk Kickback is usually quite mild, butitcan sometimes be very sudden and violent.
2. Always hold the chain saw firmly with your right hand
on the rear handle and your left hand on the front handle. Wrap your fingers and thumbs around the handles. You should use this grip whether you are right-handed or left-handed. This grip minimises the effect of kickback and lets you keep the chain saw under control. Do not let go of the handles! Mostkickback accidents happen during limbing. Make sure you are standing firmly and that there is nothing in the way that might make you trip or lose your balance. Lack of concentration can lead to kickback ifthe kickback zone of the bar accidentally touches à branch, nearby tree or some other object. Have control over the workpiece. lfthe pieces you intend to cut are small and light, they can jam in the saw chain and be thrown towards you. E ven if this does not need to be a danger, you may be surprised and lose control ofthe saw. Never saw stacked logs or branches without first separating them. Only saw one log or one piece at a time. Remove the cut pieces to keep your working area safe 4 Never use the chain saw above shoulder height and try notto cut with the tip of the bar. Never use the chain saw one-handed! 5 You musthave a steady stance in order to have full control over the chain saw. Never work standing on à English - 23
WORKING TECHNIQUES ladder, in a tree or where you do not have firm ground to stand on 6 Always use a fast cuttng speed, ie. full throttle. 7 Take greatcare when you cut with the top edge ofthe bar, Le. when cuttng from the underside ofthe object. This is known as cutting on the push stroke.The chain vies to push the chain saw back towards the user. If the saw chain is jamming, the saw may be pushed back at you 8 Unless the user resists this pushing force there is a risk thatthe chain saw will move s0 far backwards that oniy the kickback zone ofthe bar is in contact with the tree, which will lead to a kickback Cutting with the bottom edge of the bar, i.e. from the top ofthe object downwards, is known as cuttng on the pull stroke. In this case the chain saw pull itself towards the tree and the front edge of the chain saw body rests naturally on the trunk when cuting. Cutting on the pull stroke gives the operator better control over the chain saw and the position of the kickback zone. 9 Followthe instructions on sharpening and maintaining your bar and chain. When you replace the bar and Chain use only combinations that are recommended by us. See instructions under the headings Cutting equipment and Technical data.
Basic cutting technique General WARNING! Never use a chain saw by holding it with one hand. À chain saw is not safely controlled with one hand. Always have a secure, firm grip around the handies with both hands. + Always use full throttle when cutting! + Reduce the speed to ide after every cut (running the engine for too long at full throttie without any load, i.e. without any resistance from the chain during cutting, can lead to serious engine damage). + Cutting from above = Cutting on the pull stroke. + Cutting from below = Cutting on the push stroke. Cuttng on the push stroke increases the risk of kickback. See instructions under the heading How to avoid Kickback. Terms Cutting = General term for cutting through wood Limbing = Cutting branches off a felled tree. Spliting = When the object you are cutting breaks off before the cutis complete. There are five important factors you should consider before making a cut: 1 Make sure the cutting equipment will not jam in the cut.
2. Make sure the object you are cuttng will not split.
3 Make sure the chain will not strike the ground or any other object during or after cutting
4 lsthere a risk of kickback?
WORKING TECHNIQUES 5 Do the conditions and surrounding terrain affect how safely you can stand and move about? Two factors decide whether the chain will jam orthe object that you are cutting will split the first is how the object is supported before and after cutting, and the second is whether it is in tension. In most cases you can avoid these problems by cutting in two stages; from the top and from the bottom. You need to supportthe object so thatit will not trap the chain or split during cutting. IMPORTANT! Ifthe chain jams in the cut: stop the engine! Don'ttry to pull the chain saw free. 1f you do you may be injured by the chain when the chain saw suddenly breaks free. Use a leverto open up the cutand free the chain saw. The following instructions describe how to handle the commonest situations you are likely to encounter when using a chain saw. Limbing When limbing thick branches you should use the same approach as for cutting Cut difficult branches piece by piece. WARNING! Never attempt to cut logs while they are in a pile or when a couple of logs are lying together. Such procedures drastically increase the risk of kickback which can result in a serious or fatal injury. risk that the chain will touch the ground when you finish the cut. Cut all the way through the log from above. Avoid lettng the chain touch the ground as you finish the cut. Maintain full throttie but be prepared for what might happen. itis possible (can you turn the log?) stop cuttng about 2/3 ofthe way through the log, Turn the log and finish the cut from the opposite side. The log is supported at one end. There is à high risk thatit will split.
Startby cutting from below (about 1/3 ofthe way through) Finish by cutting from above so that the to cuts meet. The log is supported at both ends. There is à high risk thatthe chain will jam If you have a pile of logs, each log you attempt to cut should be removed from the pile, placed on à saw horse or runners and cut individually Remove the cut pieces from the cuttng area. By leaving them in the cutting area, you increase the risk for inadvertentiy getting a kickback, as well as increasing the risk of losing your balance while working
LES (E The log is Iying on the ground. There is lite risk of the chain jamming or the object spliting. However there is à
Startby cutting from above (about 1/3 ofthe way through). Finish by cuttng from below so thatthe two cuts meet English - 25
WORKING TECHNIQUES Tree felling technique IMPORTANT! It takes à lot of experience to fell a tree. Inexperienced users of chain saws should not ell trees. Do not attempt any task that you feel unsure of! Safe distance The safe distance between a tree that.is to be felled and anyone else working nearby is at least 2 1/2 tree lengths Make sure that no-one else is in this ‘risk zone” before or during felling.
The aim is to fell the tree in a position where you can limb and cross-cutthe log as easily as possible. You want it to fall in à location where you can stand and move about safely. Once you have decided which way you wantthe tree to fall you must judge which way the tree would fall naturally. Several factors affect this: + Lean ofthe tree + Bend + Wind direction + Arrangement of branches + Weight of snow + Obstacles within the reach of the tree: for exemple, other trees, power lines, roads and buildings. + Look forsigns of damage and rot in the stem, this makes it more probably that the tree will break and start to fall before you expect it to. You may find you are forced to letthe tree fall in its natural direction because it is impossible or dangerous to try to make it fal in the direction you first intended Another very important factor, which does not affectthe felling direction but does affect your safety, is to make sure the tree has no damaged or dead branches that might break off and hit you during felling.
The main pointto avoid is letting the tree fall onto another tree. ltis very dangerous to remove a trapped tree and there is high accident risk. See instructions under the heading Freeing a tree that hes fallen badiy IMPORTANT! During critical feling operations, hearing protectors should be lified immediately when sawing is completed so that sounds and warning signals can be heard. Clearing the trunk and preparing your retreat Delimb the stem up to shoulder height. Itis safer to work from the top down and to have the tree between you and the saw Remove any undergrowth from the base of the tree and check the area for obstacles (stones, branches, holes, etc.) so that you have a clear path of retreatwhen the tree Starts to fall. Your path of retreat should be roughiy 135 degrees away from the intended felling direction 1 Dangerzone 2 Retreat path 3 Felling direction
WORKING TECHNIQUES WARNING! Unless you have special training we advise you not to fell trees with a diameter larger than the bar length of your saw! Felling is done using three cuts. First you make the directional cuts, which consist of the top cut and the bottom cut, then you finish with the felling cut. By placing these cuts correctiy you can control the fellng direction very accurately. Directional cuts ‘To make the directional cut you begin with the top cut. Aim using to the saw's felling direction mark (1) toward a goal further forward in the terrain, where you would Ike the tree to fall (2). Stand on the right-hand side of the tree, behind the saw, and cut with a pull stroke Next make the bottom cut so thatitfinishes exact atthe end of the top cut. The directional cuts should run 1/4 ofthe diameter through the trunk and the angle between the top cut and bottom cut should be 45°. The line where the two cuts meet is called the directional cut line. This line should be perfectiy horizontal and at right angles (90°) to the chosen felling direction. Felling cut The felling cut is made from the opposite side of the tree and it must be perfect horizontal. Stand on the left side ofthe tree and cut on the pull stroke Make the felling cut about 3-5 cm (1.5-2 inches) above the bottom directional cut. Setthe spike bumper (ifone is fitted) justbehind the felling hinge. Use ful throttie and advance the chain/bar slowly into the tree. Make sure the tree does not start to move in the opposite direction to your intended fellng direction. Drive a wedge or breaking bar into the cut as soon as itis deep enough Finish the felling cut parallel with the directional cutline so that the distance between them is atleast 1/10 ofthe trunk diameter. The uncut section ofthe trunk is called the feling hinge The felling hinge controls the direction thatthe tree falls in. Al control over the felling direction is lost if the felling hinge is too narrow or non-existent, or if the directional cuts and felling cut are badly placed When the felling cut and directional cut are complete the tree should start to fall by itself or with the aid of a felling wedge or breaking bar.
We recommend that you use a bar thatis longer than the diameter of the tree, so that you can make the felling cut and directional cuts with single cutting strokes. See instructions under the heading Technical data section to English - 27
WORKING TECHNIQUES find out which lengths of bar are recommended for your saw. There are methods for felling trees with à diameter larger than the bar length. However these methods involve a much greater risk thatthe kickback zone of the bar will come into contact with the tree. Freeing a tree that has fallen badly Freeing a trapped tree” Itis very dangerous to remove a trapped tree and there is high accident risk. Never try to fell the tree that is trapped Never work in the risk zone ofthe hanging trapped tree.
The safest method is to use a winch. + Tractor-mounted + Portable
Cutting trees and branches that are in tension Preparations: Work out which side is in tension and where the point of maximum tension is (i.e. where it would break ifitwas bent even more). Decide which is the safestway to release the tension and whether you are able to do it safely. In complicated Situations the only safe method is to put aside your chain saw and use à winch General advice: Position yourself so that you will be clear ofthe tree or branch when the tension is released
Make one or more cuts ator near the point of maximum tension. Make as many cuts of sufficient depth as necessary to reduce the tension and make the tree or branch break atthe point of maximum tension. Never cut straight through a tree or branch thatis in tension! If you must cut across tree/limb, make two to three cuts, one inch apart, one to to inches deep. Continue to cut deeper until tree/limb bends and tension is released. Cuttree/limb from outside the bend, after tension has been released
WORKING TECHNIQUES How to avoid kickback WARNING! Kickback can happen very suddeniy and violentiy; kicking the chain saw, bar and chain back atthe user. If this happens when the chain is moving it can cause very serious, even fatal injures. ii vital you understand what causes kickback and that you can avoid itby taking care and using the right working technique. Whatis kickback? The word kickback is used to describe the sudden reaction that causes the chain saw and bar to jump off an object when the upper quadrant of the tip ofthe bar, known as the kickback zone, touches an object.
Kickback always occurs in the cuttng plane of the bar. Normally the chain saw and bar are thrown backwards and upwards towards the user. However, the chain saw may move in a different direction depending on the way it was being used when the kickback zone ofthe bar touched the object
L/h (EAS Kickback only occurs if the kickback zone of the bar touches an object. Limbing WARNING! A majority of kickback accidents occur during limbing. Do not use the kickback zone 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 toward you and cause loss of control resulting in injury. Make sure that you can stand and move about safely. Work on the left side of the trunk. Work as close as possible to the chain saw for maximum control. f possible, letthe weight of the chain saw rest on the trunk. Ê Se Keep the trunk between you and the chain saw as you move along the trunk. Cutting the trunk into logs See instructions under the heading Basic cuttng technique. English - 29
MAINTENANCE General The user must only carry outthe maintenance and service work described in this manual IMPORTANT! Any maintenance other than that described in this manual must be carried out by your servicing dealer (retailer) Carburettor adjustment The carburettor can be designed in different ways, depending on existing environmental and emissions legislation. Some chain saws are equipped with movement limiters on the carburettor's adjuster screws. These limitthe adjustment possibilties to a maximum of a 12 tu When your chain saw is equipped with à carburettor that features movement limiters, the carburettor should be adjusted according to the instructions under the heading Carburettor with movement limites. When your chain saw is equipped with a carburettor that does not feature movement limiters, the carburettor should be adjusted according to the instructions underthe heading Carburettor without movement limiters: Contact your servicing dealer (retailer) if you are uncertain of which type of carburettor your chain saw is equipped with. Carburettor with movement limiters Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. Function + The carburettor governs the engine’s speed via the throttie control. Air and fuel are mixed in the carburettor. The air/fuel mixture is adjustable. Correct adjustment is essential to get the best performance from the machine. + The satisfactory operation of a catalytic converter depends, among other factors, on the correct adjustment ofthe carburettor. Carefully follow the instructions below, using à tachometer as an aid + Adjusting the carburettor means thatthe engine is adapted to local operating conditions, e.g. climate, altitude, petrol and the type of 2-stroke oil + The carburettor has three adjustment controls:
- L = Low speed jet High speed jet dle adjustment screw + The Land H-jets are used to adjustthe supply of fuel to match the rate that air is admitted, which is controlled with the throttie. Ifthey are screwed clockwise the air/fuel ratio becomes leaner (less fuel) and if they are turned anti-clockwise the ratio becomes richer (more fuel). À lean mixture gives a higher engine speed and a rich mixture gives a lower engine speed +" The T-screw regulates the throttle setting at idle speed. Ifthe T-screw is turned clockwise this gives à higher idle speed; tuning it ant-clockwise gives à lower idle speed. Basic settings and running in The basic carburettor setings are adjusted during testing atthe factory. Avoid running ta too high speed during the first 10 hours. CAUTION! Ifthe chain rotates wi g theT-screw must be turned anti-clockwise until the chain stops. Fine adjustment When the machine has been ‘run-in”the carburettor should be finely adjusted. The fine adjustment should be carried out by à qualified person. First adjust the L-jet, then the idling screw T and then the H-jet Changing the type of fuel Fine tuning may be required if the chain saw, after changing the type of fuel, performs differentiy with regard to starting, acceleration, maximum speed, etc. Conditions + Before any adjustments are made the air filter should be clean and the cylinder cover fited. Adjusting the carburettor while a dirty air fiter is in use wil result in à leaner mixture next time the filter is cleaned. This can give rise to serious engine damage. + Do notattemptto adjustthe Land H jets beyond either stop as this could cause damage. + Now startthe machine according to the starting instructions and let it warm up for 10 minutes.
MAINTENANCE + Place the machine on a flat surface so thatthe bar points away from you and so thatthe bar and chain do not come into contact with the surface or other objects. Low speed jet L Turn the low speed jet L clockwise until it stops. Ifthe engine accelerates pooriy or idles unevenly, turn the low speed jet L anticlockwise until good acceleration and idling are achieved. Fine adjustment of the idle speed T Adjustthe idle speed with the T-screw. Iitis necessary to re-adjust, turn the T-screw clockmise while the engine is running, until the chain starts to rotate. Then turn anti- clockwise until the chain stops. When the idle speed is correctiy adjusted the engine should run smoothiy in every position and the engine speed should be safely below the speed at which the chain starts to rotate. WARNING! Contact your servicing dealer, ifthe idle speed setting cannot be adjusted so that the chain stops. Do not use the chain saw until ithas been properiy adjusted or repaired. High speed jet H Atthe factory the engine is adjusted at sea level. When working at a high altitude or in different weather conditions, temperatures and atmospheric humidity, it may be necessary to make minor adjustments to the high speed jet. CAUTION! Ifthe high speed jet is screwed in too far, it may damage the piston/cylinder. When testrun atthe factory, the high speed jetis set so that the engine satises the applicable legal requirements atthe same time as achieving maximum performance. The carburettors high speed jetis then locked using a limiter cap in the fully screwed out position. The limiter cap limits the potential to adjust the high speed jet to at most half à tum. Correctly adjusted carburettor When the carburettor is correctiy adjusted the machine accelerates without hesitation and 4-cycles a litde at full throttie. lt is also important that the chain does not rotate at idle. If the L-jet is set too lean it may cause starting diffculties and poor acceleration. If the H-jetis set too lean the machine will have less power, poor acceleration and could suffer damage to the engine Carburettor without movement limiters + The carburettor governs the engine's speed via the throttie control. Air and fuel are mixed in the carburettor. The air/fuel mixture is adjustable. Correct adjustment is essential to getthe best performance from the machine. The satisfactory operation of a catalytic converter depends, among other factors, on the correct adjustment of the carburettor. Carefully follow the instructions below, using a tachometer as an aid. Adjusting the carburettor means that the engine is adapted to local operating conditions, e.g. climate, altitude, petrol and the type of 2-stroke oil. The carburettor has three adjustment controls - L = Low speed jet = H = High speed jet T = idle adjustment screw The Land H-jets are used to adjustthe supply of fuel to match the rate that air is admitted, which is controlled with the throttle. If they are screwed clockwise the air/fuel ratio becomes leaner (less fuel) and ifthey are turned anti-clockwise the ratio becomes richer (more fuel). À lean mixture gives à higher engine speed and à rich mixture gives à lower engine speed The T-screw regulates the throttie setting at idle speed. Ifthe T-screw is tumed clockwise this gives a higher idle speed; turning it anti-clockwise gives à lower idle speed Basic settings and running in The basic carburettor settings are adjusted during testing atthe factory. The basic settings are H = 1 turn and L = 1 tum. To provide the engine's components with good initial lubrication (during running in) the carburettor should be set for a richer fuel mixture for the first 3-4 hours that the chain saw is in use. To do this, adjustthe fast idle speed to 600-700 rpm below the recommended maximum fast ide speed If you are unable to check the fast idle speed using à tachometerthe H-jetshould notbe setfor a leaner mixture than given in the basic settings. The recommended maximum fast idle speed must not be exceeded CAUTION! Ifthe chain rotates while idling theT-screw must be tumed anti-clockwise until the chain stops. Rec. idle speed: 2700 rpm English - 31
MAINTENANCE Fine adjustment When the machine has been ‘run-in” the carburettor should be finely adjusted. The fine adjustment should be carried out by à qualiied person. First adjust the L-jet, then the idling screw T and then the H-jet. The recommended engine speeds are as follows: Max. faste speed, \je speed, rpm rpm 357XP 14000 2700 Conditions + Before any adjustments are made the air filter should be clean and the cylinder cover fited. Adjusting the carburettor while a dirty air fier is in use wil result in à leaner mixture next time the filer is cleaned. This can give rise to serious engine damage. + Carefullytum the L'and H-jets clockwise as far as they will go. Now turn the jets one turn anti-clockwise. The carburettor is now set to H =1 and L =1. + Now startthe machine according to the starting instructions and let it warm up for 10 minutes. + Place the machine on a flat surface so that the bar points away from you and so thatthe bar and chain do not come into contact with the surface or other objects. Low speed jet L Turn the low speed jet L clockwise until it stops. Ifthe engine accelerates pooriy or idles unevenly, turn the low speed jet L anticlockwise until good acceleration and idiing are achieved Fine adjustment of the idle speedT Adjustthe die speed with the T-screw. Fitis necessary to re-adjust, turn the T-screw clockwise while the engine is running, until the chain starts to rotate. Then turn anti- clockwise until the chain stops. When the idle speed is correctiy adjusted the engine should run smoothiy in every position and the engine speed should be safely below the speed at which the chain starts to rotate. WARNING! Contact your servicing dealer, ifthe idle speed setting cannot be adjusted so that te chain stops. Do not use the chain saw until it has been properly adjusted or repaired.
High speed jet H + The high speed jetH influences the power and engine speed of the machine. If the high speed jet is set to0 rich (H-jetscrewed in too far) the machine will over-rev and this will damage the engine. Run the machine at full throttie for about 10 seconds. Then turn the H-jet 1/4 turn anti-clockwise. Run the machine atfullthrottle for another 10 seconds or so and listen to the difference in the fast idle speed. Repeat this procedure with the H-jetturned a further 1/4 turn anti-
+ You have now run the machine at setings of H =+0, H=41/4, H=+41/2 relative to the basic settings. At full throttie the engine has sounded different for each setting. The H-jetis correctiy adjusted when the machine burbles a little. the machine ‘screams”then the machine is settoo lean. Ifthe muffler emits a lot of smoke and the machine burbles a lotthen the setting is too rich. Turn the H-jet clockwise until he setting sounds right CAUTION!To ensure correctadjustment you should enlist a qualified mechanic who has access to a tachometer. The recommended maximum fast idle speed must not be exceeded. Correctly adjusted carburettor When the carburettor is correctiy adjusted the machine accelerates without hesitation and 4-cycles a lite at full throttie. It is also important that the chain does not rotate atidle. lfthe L-jet is set too lean it may cause starting diffculties and poor acceleration. lfthe H-jetis settoo lean the machine will have less power, poor acceleration and could suffer damage to the engine. If both the L'and H jets are set too rich it will results in acceleration problems or too low a working speed.
MAINTENANCE Checking, maintaining and servicing chain saw safety equipment Note! AIl service and repair work on the machine demands special training. This is especially true of the machine‘ safety equipment. f your machine fails any of the checks described below we recommend that you take it to your service workshop. Chain brake and front hand guard Checking brake band wear
Brush off any wood dust, resin and dirt from the chain brake and clutch drum. Dirtand wear can impair operation of the brake. Regularly check that the brake band is at least 0.6 mm thick at its thinnest point. Checking the front hand guard
Make sure the front hand guard is not damaged and that there are no visible defects such as cracks. Move the front hand guard forwards and back to make sure it moves freely and thatitis securely anchored to the clutch cover. Checking the inertia brake release
Place the chain saw, with the engine switched off, on a stump or other stable surface. Release the front handle and letthe saw fall by its own weight, rotating around the rear handle towards the stump. CONTE
When the bar hits the stump the brake should be applied. Checking the brake trigger Place the chain saw on firm ground and startit. Make sure the chain does not touch the ground or any other object See the instructions under the heading Start and stop
Grasp the chain saw firmiy, wrapping your fingers and thumbs around the handles. Appiy ful throttie and activate the chain brake by titing your leftwristfonward onto the fronthand guard. Do notlet English - 33
MAINTENANCE go ofthe front handle. The chain should stop immediately. + Make sure the throttle control is locked at the idle setting when the throttie lockout is released’ + Press the throttie lockout and make sure itreturns to its original position when you release it.
+ Check that the throttie control and throttle lockout move freely and that the return springs work properl.
+ Startthe chain saw and apply full throttle. Release the throttie control and check thatthe chain stops and remains stationary. IFthe chain rotates when the throtie control is in the idle position you should check the carburettor ide adjustment.
Chain catcher Check thatthe chain catcher is not damaged andis firmly atached to the body of the chain saw.
Right hand guard MESE Check tatthe right hand guard is not damaged and that there are no visible defects, such as cracks Vibration damping system a? ea D) Regulariy check the vibration damping units for cracks or deformation: Make sure the vibration damping units are securely atached to the engine unit and handle unit.
Start the engine and make sure the engine stops when you move the stop switch to the stop setting.
Never use a machine that has a faulty muffler.
Regularly check thatthe muffler is securely attached to the machine. Some mufflers are equipped with a special spark arrestor mesh. If your machine has this type of muffler, you should clean the mesh at least once a week. This is best done with a wire brush. À blocked mesh will cause the engine to overheat and may lead to serious damage. Note! The mesh must be replaced ifitis damaged. Ifthe mesh is blocked the machine will overheat and this will cause damage to the cylinder and piston. Never use à machine with a muffler that is in poor condition. Never use a muffler if the spark arrestor mesh is missing or defective. The muffleris designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause fire if directed against dry and combustible material. A muffler equipped with a catalytic converter significantiy reduces the amount of hydrocarbons (HC), nitrogen oxides (NO) and aldehydes in the exhaustfumes. Carbon monoxide (CO), which is poisonous and odourless, is not however reduced! Consequentiy, never work in an enclosed or badly ventilated area. Good air circulation should always prevail when working in snowy hollows, ravines or in confined conditions. Starter WARNING! When the recoil wound up in the starter housing itis under tension and can, if handled carelessly, pop out and cause personal injury.
Care must be exercised when replacing the retum spring or the starter cord. Wear protective glasses and protective gloves. Changing a broken or worn starter cord Lo ,5) Re + Loosen the screws that hold the starter againstthe crankcase and remove the starter. English - 35
MAINTENANCE + Pulloutthe cord approx. 30 cm and hook it into the notch in the rim ofthe pulley. Release the recoil spring by lettng the pulley rotate slowly backwards. + Undo the screw in the centre ofthe pulley and remove the pulley. Insert and fasten a new starter cord to the pulley. Wind approx. 3 turs of the starter cord onto the pulley. Connect the pulley to the recoil spring so thatthe end ofthe spring engages in the pulley. Fitthe screw in the centre ofthe pulley.Insertthe starter cord through the hole in the starter housing and the starter handle. Make a secure knot in the end of the starter cord Tensioning the recoil spring + Hook the starter cord in the notch in the pulley and tum the starter pulley about 2 turns clockwise. Note! Check tatthe pulley can be turned at least a further 1/2 turn when the starter cord is pulled all the way out.
Changing a broken recoil spring
+ Liftup the starter pulley. See instructions under the heading Changing a broken or worn starter cord
Remember that the recoil spring is coiled under tension in the starter housing. + Remove the cassette with the recoil spring from the starter. + Lubricate the recoil spring with light oil. Fitthe cassette with recoil spring in the starter. Fitthe starter pulley and tension the recoil spring. Fitting the starter + Tofitthe starter, firstpull outthe starter cord and place the starter in position against the crankcase. Then slowly release the starter cord so that the pulley engages with the pawis. + Fitand tighten the screws that hold the starter. Air filter
The airfiter mustbe regularly cleaned to remove dustand dirt in order to avoid: + Carburettor malfunctions + Starting problems + Loss of engine power + Unnecessary wear to engine parts. + Excessive fuel consumption + Remove the airfier after taking offthe air filter cover. When refiting make sure thatthe air filter seals tightly
MAINTENANCE againstthe fiter holder. Clean the fier by brushing or shaking it The filter can be cleaned more thoroughly by washing itin water and detergent. An air filter thathas been in use for a long time cannot be cleaned completely. The filter must therefore be replaced with a new one at regular intervals. À damaged air filter must always be replaced. A HUSQVARNA chain saw can be equipped with different types of airfier according to working conditions, weather, season, etc. Contact your dealer for advice. Spark plug
The spark plug condition is influenced by: + incorrect carburettor adjustment. + Anincorrectfuel mixture [too much or incorrect type of oil) + A dirty air fier. These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties. Ifthe machine is low on power, difficult to start or runs pooriy at idie speed: always check the spark plug first before taking any further action. If the spark plug is dirty, clean it and check thatthe electrode gap is 0.5 mm. The spark plug should be replaced after about a month in operation or earlier if necessary. 0,5 mm Note! Always use the recommended spark plug type! Use ofthe wrong spark plug can damage the piston/cylinder. Check thatthe spark plug is fitted with a suppressor. Lubricating the bar tip sprocket
Lubricate the bar tip sprocket each time you refuel. Use the special grease gun and a good quality bearing grease. Needle bearing lubrication Es? The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly (once a week). When lubricating, remove the clutch cover by loosening the to bar nuts. Lay the saw on its side with the clutch drum upwards. Lubrication involves grease being squirted into the centre of the crankshaît using a grease gun The oil pump is adjustable. Adjustments are made by turning the screw using a screwdriver or combination spanner. The machine is supplied from the factory with the screw set to position 2. Turning the screw clockwise English - 37
MAINTENANCE will reduce the oil flow and turning the screw anti- clockwise will increase the oil flow. Recommended settings: Bar 13"-15": Position 1 Bar 15*-18": Position 2 Bar 18-20": Position 3
Cooling system B |? To keep the working temperature as low as possible the machine is equipped with à cooling system. The cooling system consists of: 1 Airintake on the starter. Aïr guide plate Fins on the flywheel Cooling fins on the cylinder. Cylinder cover (directs cold air over the cylinden). WARNING The engine must not be running when making adjustments.. uw 8 w N Clean the cooling system with a brush once a week, more often in demanding conditions. À dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder. Note! The cooling system on a chain saw with catalytic converter must be cleaned daily. This is particulariy important on chain saws with catalytic converters,
because the higher exhausttemperature requires efficient cooling ofthe engine and the catalytic converter unit. "Air Injection” centrifugal cleaning Centrifugal cleaning means the following: All air to the carburettor passes through the starter. Dirt and dust is centrifuged out by the cooling fan: IMPORTANT! In order to maintain operation of the centrifugal cleaning system it must be regularly maintained. Clean the air intake to the starter, the fins on the fywheel, the space around the fywheel, inlet pipe and carburettor compartment. Winter use Running problems can occur when using the machine in the cold and snowy conditions caused by: + Too low engine temperature. + Icing ofthe air filter and carburettor. Special measures are therefore often required: + Partly mask the air inlet on the starter to increase the working temperature of the engine. + Preheatthe intake air to the carburettor by using the heat from the cylnder. Temperature 0°C or colder:
The cylinder cover is designed so it can be adjusted for running in cold weather. Twistthe winter flap so that preheated air from the cylinder can pass into the carburettor space preventing icing of the air filter, etc. For temperatures below -5°C and/or in snow conditions there is also:
MAINTENANCE + a special cover (A) for the starter housing + a winter plug (8) for the air nozzle that is fitted as shown. These reduce the flow of cooling air and prevent large amounts of snow from being sucked into the carburettor space. CAUTION! When the winter plug is fitted the winter flap must be open! IMPORTANT! Ifthe temperature rises above -5°C or 0°C respectively the machine MUST be restored to its normal setup. Otherwise there is à risk of overheating, which can cause severe engine damage. Heated handles (357 XPG, 359 G) On models with the designation XP G/G, the front as well as the rear handle are equipped with electric heating cols. These are supplied with electricity from à builtin generator on the chain saw. When the switch is pushed downwards, the heat is switched on. When the switch is pushed upwards, the heatis switched off. AVE Electrical carburettor heating (357 XPG, 359 G) On models with the designation CARBURETOR HEATING there is an electrical heated carburetor. Electrically powered heating prevents ice formation in the carburetor. À thermostatregulates the heating so thatthe carburetor always has the right working temperature. English - 39
MAINTENANCE Maintenance schedule The following is a list ofthe maintenance that must be performed on the machine. Most ofthe items are described in the Maintenance section Daily maintenance Weekly maintenance Monthly maintenance Clean the outside of the machine. On chain saws without a catalytic converter, check the cooling system weekl. Check the brake band on the chain brake for wear. Replace when less than 0.6 mm (0,024 inch) remains at the most worn point. Check that the components ofthe throttie control work safely. (Throttie lockout and throttie control.) Check the starter, starter cord and return spring, Check the clutch centre, clutch drum and clutch spring for wear. Clean the chain brake and check that itoperates safely. Make sure thatthe chain catcher is undamaged, and replace it if necessary. Check thatthe vibration damping elements are not damaged Clean the spark plug. Check thatthe electrode gap is 0.5 mm The bar should be turned daily for more even wear. Check the lubrication hole in the bar, to be sure it is not clogged. Clean the bar groove Ifthe bar has à sprocket tip, this should be lubricated Lubricate the clutch drum bearing. Clean the outside of the carburettor. Check that the bar and chain are getting sufficient oil. File off any burrs from the edges of the bar. Check the fuel filter and the fuel hose. Replace if necessary. Check the saw chain with regard to visible cracks in the rivets and links, whether the saw chain is stff or whether the rivets and links are abnormally wo. Replace if necessary. Clean or replace the spark arrestor mesh on the muffler. Empty the fuel tank and clean the inside. Sharpen the chain and check its tension and condition. Checkthe drive sprocket for excessive wear and replace if necessary. Clean the carburettor compartment Empty the oi tank and clean the inside. Clean the starter units air intake. Clean the air filter. Replace if necessary. Check all cables and connections: Check that nuts and screws are tight. Check that the stop switch works correct. Check that there are no fuel leaks from the engine, tank or fuel lines. On chain saws with a catalytic converter, check the cooling system daily.
Technical data Technical data Engine Cylinder displacement, cm? Cyinder bore, mm Stroke, mm Idle speed, rpm Pouer, k/ rpm Ignition system Spark plug Electrode gap, mm Fuel and lubrication system Fuel tank capacity, ire Oil pump capacity at 9,000 rpm, mlmin Oil tank capacity, litre Type of oi pump Weight Chain saw without bar or chain, empty tanks, kg e emissions (see note 1) Sound power level, measured d8(A) Sound power level, guaranteed Lg dB(A) Sound levels (see note 2) Equivalent sound pressure level at the operators ear, dB{A) Equivalent vibration levels, a ;,., (see note 3) Front handie, ms? Rear handle, m/s? Chain/bar Standard bar length, inchicm Recommended bar lengths, inch/cm Usable cuttng length, inchicm Pitch, inchimm Thickness of drive links, inch/mm Type of drive sprocketnumber of teeth Chain speed at max. power, m/sec 357XP 56,5
13-2483-61 1223/8158 0,325/825 318"19,52 Rim7 20,0 Note 1: Noise emissions in the environment measured as sound power (Lyg) in conformity with EC directive 2000/14/EC Note 2: quivalent sound pressure level, according to 150 22868, is calculated as the time-weighted energy total for differentsound pressure levels under various working conditions. Typical statistical dispersion for equivalent sound pressure level is a standard deviation of 1 dB (A) Note 3: Equivalent vibration level, according to 150 22867, is calculated as the time-weighted energy total for vibration levels under various working conditions. Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1 m/s. English - 41
Technical data Bar and chain combinations The following cuttng attachments are approved for the models Husqvarna 357XP and 359. The saw chain Husqvarna H30 is designed to minimize kickback (classified saw chain of low kickback type according to ANSI 175.1) Bar Chain Length, inch | Pitch, inch | Gauge, mm | Max. nose radius Type Length, drive links (no.)
Technical data EC-declaration of conformity (Applies to Europe only) Husqvama AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain saws for forestservice Husqvarna 357XP, 357XPG, 359, 3596, 357XP E-tech, 357XPG E-tech, 359 E-tech and 359G E-tech from 2009 serial numbers and onwards (the years clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the requirements ofthe COUNCIL'S DIRECTIVES - of May 17, 2006 ‘relating to machinery" 2006/42/EC - of December 15, 2004 "relating to electromagnetic compatibilty" 2004/108/E C - of May 8, 2000 ‘relating to the noise emissions in the environment" 2000/14/EC Forinformation relating to noise emissions, see the chapter Technical data. The following standards have been applied EN ISO 12100-2:2003, CISPR 12:2005, EN ISO 11681-1:2004 Notified body: 0404, SMP Svensk Maskinprovning AB, F yrisborgsgatan 3, SE-754 50 Uppsala, Sweden, has carried out EC type examination in accordance with the machinery directives (2006/42/EC} article 12, point 3b.The certficates for EC type examination in accordance with annex IX, have the numbers: 0404/09/2079 - 357XP/G, 357 XP/ E-tech G/ E-tech, 0404/09/2080 - 359/G, 359 E-tech /G E-tech In addition, SMP, Svensk Maskinprovning AB, Fyrisborgsgatan 3, SE-754 50 Uppsala, Sweden, has certified conformity with annex V ofthe Councils Directive of May 8, 2000 ‘relating to the noise emissions in the environment” 2000/14/E C The certicates have the numbers: 01/161/013 - 357XP/G, 359 /G, 01/161/014 - 357XP E-tech/G E-tech, 359 E-tech/G E-tech The supplied chain saw conforms to the example that underwent EC type examination. Huskvarna December 29, 2009
Bengt Frôgelius, Development director chainsaw R&D (Authorized representative for Husqvarna AB and responsible for technical documentation.) English - 43
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