Operator′s manual 570 576 XP 576 XPG Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
KEY TO SYMBOLS Symbols on the machine: WARNING! Chain saws can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: ..................................... Symbols in the operator’s 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 ..........................
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 of a factory on the banks of the Husqvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant.
WHAT IS WHAT? What is what on the chain saw? 1 Decompression valve 16 Bar tip sprocket 2 Switch for heated handle (576 XPG) 17 Saw chain 3 Starter handle 18 Guide bar 4 Adjuster screws carburettor 19 Spike bumper 5 Stop switch (Ignition on/off switch.
GENERAL SAFETY PRECAUTIONS Before using a new chain saw • Please read this manual carefully. • Check that the cutting equipment is correctly fitted and adjusted. See instructions under the heading Assembly. • Refuel and start the chain saw. See the instructions under the headings Fuel Handling and Starting and Stopping. • Do not use the chain saw until sufficient chain oil has reached the chain. See instructions under the heading Lubricating cutting equipment.
GENERAL SAFETY PRECAUTIONS Always use common sense • Trousers with saw protection It is not possible to cover every conceivable situation you can face when using a chain saw. Always exercise care and use your common sense. Avoid all situations which you consider to be beyond your capability. If you still feel uncertain about operating procedures after reading these instructions, you should consult an expert before continuing.
GENERAL SAFETY PRECAUTIONS reduce the risk of moving chain accidentally hitting your leg or anyone or anything close by. 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.
GENERAL SAFETY PRECAUTIONS If the kickback is less violent or the kickback zone of the bar is closer to you the chain brake will be activated manually by the movement of your left hand. 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.
GENERAL SAFETY PRECAUTIONS Right hand guard Stop switch Apart from protecting your hand if the chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle. Use the stop switch to switch off the engine. Vibration damping system Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier.
GENERAL SAFETY PRECAUTIONS Cutting equipment This section describes how to choose and maintain your cutting equipment in order to: • Reduce the risk of kickback. • Reduce the risk of the saw chain breaking or jumping off the bar. • Obtain optimal cutting performance. • Extend the life of cutting equipment. • Avoid increasing vibration levels.
GENERAL SAFETY PRECAUTIONS • 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. • The cutting part of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge (B). The cutters cutting depth is determined by the difference in height between the two (depth gauge setting).
GENERAL SAFETY PRECAUTIONS Sharpening cutting teeth Adjustment of depth gauge setting 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. • 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.
GENERAL SAFETY PRECAUTIONS Tensioning the chain Lubricating cutting equipment ! ! WARNING! A slack chain may jump off and cause serious or even fatal injury. The more you use a chain the longer it becomes. It is therefore important to adjust the chain regularly to take up the slack. Check the chain tension every time you refuel. NOTE! A new chain has a running-in period during which you should check the tension more frequently.
GENERAL SAFETY PRECAUTIONS Checking chain lubrication • Chain drive sprocket Check the chain lubrication each time you refuel. See instructions under the heading Lubricating the bar tip sprocket. Aim the tip of the bar at a light coloured surface about 20 cm (8 inches) away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on the light surface.
GENERAL SAFETY PRECAUTIONS Bar ! Check regularly: • • Whether there are burrs on the edges of the bar. Remove these with a file if necessary. Whether the groove in the bar has become badly worn. Replace the bar if necessary. 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 not tackle any job that you feel you are not adequately trained for.
ASSEMBLY Fitting the bar and chain ! correctly located in the groove in the bar. Tighten the bar nuts finger tight. WARNING! Always wear gloves, when working with the chain. Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle. 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 of the bar.
FUEL HANDLING Fuel Two-stroke oil Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of petrol and twostroke oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture.
FUEL HANDLING Chain oil • We recommend the use of special oil (chain oil) with good adhesion characteristics. • Never use waste oil. This results in damage to the oil pump, the bar and the chain. • It is important to use oil of the right grade (suitable viscosity range) to suit the air temperature. • 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. • Clean the area around the fuel cap.
FUEL HANDLING Transport and storage • Always store the chain saw and fuel so that there 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.
STARTING AND STOPPING Starting and stopping ! the machine has started the valve will automatically return to its closed position. WARNING! Note the following before 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 correctly. Otherwise the clutch can come loose and cause personal injuries. Place the machine on firm ground.
STARTING AND STOPPING achieved by quickly disengaging the throttle lock. This prevents unnecessary wear to the clutch, clutch drum and brake band. CAUTION! Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended. This can damage the machine. Note! Reactivate the chain brake by pushing the front hand guard back towards the front handle. The chain saw is now ready for use.
WORKING TECHNIQUES Before use: • To make sure that none of the above might come within reach of your saw or be injured by falling trees. , Check that the chain brake works correctly and is not damaged. 2 Check that the rear right hand guard is not damaged. 3 Check that the throttle lockout works correctly and is not damaged. 4 Check that the stop switch works correctly and is not damaged. 5 Check that all handles are free from oil. 6 Check that the anti vibration system works and is not damaged.
WORKING TECHNIQUES Have control over the workpiece. If the pieces you intend to cut are small and light, they can jam in the saw chain and be thrown towards you. Even if this does not need to be a danger, you may be surprised and lose control of the 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. Fit a guard to the bar before transporting the chain saw or carrying it for any distance.
WORKING TECHNIQUES the saw chain is jamming, the saw may be pushed back at you. Terms Cutting = General term for cutting through wood. Limbing = Cutting branches off a felled tree. Splitting = When the object you are cutting breaks off before the cut is complete.
WORKING TECHNIQUES Turn the log and finish the cut from the opposite side. Limbing When limbing thick branches you should use the same approach as for cutting. Cut difficult branches piece by piece. 1 2 3 Start by cutting from below (about 1/3 of the way through). Cutting ! The log is supported at one end. There is a high risk that it will split. Finish by cutting from above so that the two cuts meet.
WORKING TECHNIQUES Felling direction Clearing the trunk and preparing your retreat The aim is to fell the tree in a position where you can limb and cross-cut the log as easily as possible. You want it to fall in a location where you can stand and move about safely. Delimb the stem up to shoulder height. It is safer to work from the top down and to have the tree between you and the saw. Once you have decided which way you want the tree to fall you must judge which way the tree would fall naturally.
WORKING TECHNIQUES Next make the bottom cut so that it finishes exactly at the end of the top cut. The directional cuts should run 1/4 of the diameter through the trunk and the angle between the top cut and bottom cut should be 45°. The felling hinge controls the direction that the tree falls in. All 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.
WORKING TECHNIQUES Freeing a tree that has fallen badly General advice: Freeing a ”trapped tree” Position yourself so that you will be clear of the tree or branch when the tension is released. It is 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 of the hanging trapped tree. Make one or more cuts at or near the point of maximum tension.
WORKING TECHNIQUES How to avoid kickback ! WARNING! Kickback can happen very suddenly and violently; kicking the chain saw, bar and chain back at the user. If this happens when the chain is moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking care and using the right working technique.
MAINTENANCE General Basic settings and running in The user must only carry out the maintenance and service work described in this Operator’s Manual. More extensive work must be carried out by an authorized service workshop. The basic carburettor settings are adjusted during testing at the factory. Avoid running at a too high speed during the first 10 hours. Carburettor adjustment CAUTION! If the chain rotates while idling the T-screw must be turned anti-clockwise until the chain stops. Rec.
MAINTENANCE High speed jet H At the 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! If the high speed jet is screwed in too far, it may damage the piston/cylinder. Checking, maintaining and servicing chain saw safety equipment Note! All service and repair work on the machine demands special training.
MAINTENANCE Checking the inertia brake release Apply full throttle and activate the chain brake by tilting your left wrist forward onto the front hand guard. Do not let go of the front handle. The chain should stop immediately. Place the chain saw, with the engine switched off, on a stump or other stable surface. Release the front handle and let the saw fall by its own weight, rotating around the rear handle towards the stump.
MAINTENANCE Chain catcher Stop switch Check that the chain catcher is not damaged and is firmly attached to the body of the chain saw. Start the engine and make sure the engine stops when you move the stop switch to the stop setting. Muffler Right hand guard Never use a machine that has a faulty muffler. Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. Regularly check that the muffler is securely attached to the machine.
MAINTENANCE Starter Tensioning the recoil spring • ! WARNING! When the recoil spring is wound up in the starter housing it is under tension and can, if handled carelessly, pop out and cause personal injury. Hook the starter cord in the notch in the pulley and turn the starter pulley about 2 turns clockwise. Note! Check that the pulley can be turned at least a further 1/2 turn when the starter cord is pulled all the way out. 1 Care must be exercised when replacing the return spring or the starter cord.
MAINTENANCE Air filter Spark plug The air filter must be regularly cleaned to remove dust and dirt in order to avoid: The spark plug condition is influenced by: • Incorrect carburettor adjustment. • Carburettor malfunctions • • Starting problems An incorrect fuel mixture (too much or incorrect type of oil). • Loss of engine power • A dirty air filter. • Unnecessary wear to engine parts. • Excessive fuel consumption.
MAINTENANCE Needle bearing lubrication Cooling system The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly (once a week). To keep the working temperature as low as possible the machine is equipped with a cooling system. When lubricating, remove the clutch cover by loosening the two bar nuts. Lay the saw on its side with the clutch drum upwards. 1 Air intake on the starter. 2 Air guide plate.
MAINTENANCE Winter use Temperature 0°C or colder: Running problems can occur when using the machine in the cold and snowy conditions caused by: • Too low engine temperature. • Icing of the air filter and carburettor. Special measures are therefore often required: • Preheat the intake air to the carburettor by using the heat from the cylinder. • Partly mask the air inlet on the starter to increase the working temperature of the engine.
MAINTENANCE Heated handles 576 XPG On models with the model code XPG both the front handle bar and the rear handle are equipped with electrical heating coils. These are supplied with electricity from a generator built into the chain saw. Electrical carburettor heating 576 XPG If this chain saw has the model code XPG then it is equipped with an electrically heated carburettor. The electrical heating prevents icing in the carburettor.
MAINTENANCE Maintenance schedule The following is a list of the maintenance that must be performed on the machine. Most of the 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 weekly. 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.
TECHNICAL DATA Technical data 570 576 XP 576 XPG Engine Cylinder displacement, cm3 68 73,5 73,5 Cylinder bore, mm 49 51 51 Stroke, mm 36 36 36 Idle speed, rpm 2700 2700 2700 Power, kW/ rpm 3,6/9600 4,2/9600 4,2/9600 Spark plug NGK BPMR 7A/ Champion RCJ 7Y NGK BPMR 7A/ Champion RCJ 7Y NGK BPMR 7A/ Champion RCJ 7Y Electrode gap, mm 0,5 0,5 0,5 Ignition system Fuel and lubrication system Fuel tank capacity, litre/cm3 0,7/700 0,7/700 0,7/700 Oil pump capacity at 9,000 rpm, ml
TECHNICAL DATA Bar and chain combinations The following cutting attachments are approved for the models Husqvarna 570, 576XP and 576XPG. Guide bar Length, inch Pitch, inch Gauge, mm Saw chain Max. nose radius Type Length, drive links (no.
TECHNICAL DATA EC-declaration of conformity Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain saws for forest service Husqvarna 570, 576 XP and 576 XPG from 2016’s serial numbers and onwards (the year is clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the requirements of the COUNCIL’S DIRECTIVES: - of May 17, 2006 "relating to machinery" 2006/42/EC.
Original instructions 1153181-26 ´®z+U2,¶66¨ ´®z+U2,¶66¨ 2018-09-13
