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ASSEMBLY

English

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 17

Fitting the bar and chain

Check that the 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).

Fit the 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.

Make sure that the edges of the cutting links are facing 
forward on the top edge of the bar.

Fit the clutch cover and locate the chain adjuster pin in the 
hole in the bar. Check that the drive links of the chain fit 
correctly over the drive sprocket and that the chain is 

correctly 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 is correctly tensioned when it does not sag 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 fitting a new chain, the chain tension has to be 
checked frequently until the chain is run-in. Check the 
chain tension regularly. A correctly tensioned chain 
ensures good cutting performance and long life.

Note: If clutch cover is difficult to remove, replace bar 
nuts, engage brake and rerelease (an audible click will be 
heard if released properly).

!

WARNING! Always wear gloves, when 
working with the chain.

Summary of Contents for 1153181-95

Page 1: ...E E E En n n ng g g gl l l li i i is s s sh h h h 570 576 XP 576 XPG Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...sier You should always use the decompression valve when starting the machine Ignition choke Set the choke control in the choke position This should automatically set the stop switch to the start position Adjustment of the oil pump Chain brake activated right Chain brake not activated left Other symbols decals on the machine refer to special certification requirements for certain markets Symbols in...

Page 3: ...ission Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal emissions requirements Category C 50 hours B 125 hours and A 300 hours Maintenance replacement or repair of the emission control devices and system may be performed by any nonroad engine repair establishment or individual ...

Page 4: ...pping 20 WORKING TECHNIQUES Before use 22 General working instructions 22 How to avoid kickback 28 MAINTENANCE General 30 Carburetor adjustment 30 Checking maintaining and servicing chain saw safety equipment 31 Muffler 33 Starter 33 Air filter 34 Spark plug 35 Lubricating the bar tip sprocket 35 Needle bearing lubrication 35 Adjustment of the oil pump 36 Cooling system 36 Air Injection centrifuga...

Page 5: ... and market high quality motor driven products for forestry and gardening as well as for building and construction industry Your purchase gives you access to professional help with repairs and service whenever this may be necessary If the retailer who sells your machine is not one of our authorized dealers ask for the address of your nearest servicing dealer It is our wish that you will be satisfi...

Page 6: ...le lock 8 Fuel tank 9 Starter 10 Chain oil tank 11 Throttle lockout 12 Cylinder cover 13 Front handle 14 Front hand guard 15 Muffler 16 Bar tip sprocket 17 Chain 18 Bar 19 Bumper spike 20 Chain catcher 21 Chain tensioning screw 22 Oil pump adjustment screw 23 Clutch cover 24 Right hand guard 25 Throttle control 26 Operator s manual 27 Combination spanner 28 Bar guard 29 Information and warning dec...

Page 7: ...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 start the machine This can mean a risk of serious personal injury Therefore remove the spark plug cap when the machine is not under close supervision IM...

Page 8: ...y equipment In this section the machine s safety features and their function are explained For inspection and maintenance see instructions under the 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 of the machine can be reduced and the risk of accidents can incre...

Page 9: ...d to prevent the saw chain from rotating Use the chain brake as a parking brake when starting and when moving over short distances to reduce the risk of moving chain accidentally hitting 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 ac...

Page 10: ...s 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 If the 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 brak...

Page 11: ...chain breaking or jumping off the bar Obtain optimal cutting performance Extend the life of cutting equipment Avoid increasing vibration levels General rules Only use cutting equipment recommended by us See instructions under the heading Technical data Keep the chain s cutting teeth properly sharpened Follow our instructions and use the WARNING Overexposure to vibration can lead to circulatory dam...

Page 12: ...me terms that describe the bar and chain To maintain the safety features of the cutting equipment you should replace a worn or damaged bar or chain with a 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 Number of teeth on bar tip sprocket T Chain pitch inches...

Page 13: ...tting angle 3 File position 4 Round file diameter It is very difficult to sharpen a chain correctly without the right equipment We recommend that you use our file gauge This will help you obtain the maximum kickback reduction and cutting performance from your chain See instructions under the heading Technical data for information about sharpening your chain Sharpening cutting teeth To sharpen cutt...

Page 14: ...d on the package for the depth gauge tool Use the flat file to file off the tip of the 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 The more you use a chain the longer it becomes It is therefore important to adjust the chain regularly to take up the ...

Page 15: ...etor as recommended a lean mixture may mean that the 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 of the bar at a light coloured surface about 20 cm 8 inch...

Page 16: ...nly 5 32 inch 4 mm the chain must be replaced 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 Whether the tip of the bar is uneven or badly worn If a hollow forms on the underside of the bar tip this is due to running with a slack chain To prolong the life of t...

Page 17: ...ain fit correctly over the drive sprocket and that the chain is correctly 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 is correctly tensioned when it does not sag from the underside of the bar but can still be turned easily by hand Hold up the bar tip and tighten the bar ...

Page 18: ...ry when changing the type of fuel see instructions under the heading Carburetor Running in Avoid running at a too high speed for extended periods during the first 10 hours Two stroke oil For best results and performance use HUSQVARNA two stroke engine oil which is specially formulated for our air cooled two stroke engines Never use two stroke oil intended for water cooled engines sometimes referre...

Page 19: ...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 gas station The bar guard must always be fitted to the cutting attachment when the machine is being transpor...

Page 20: ...d 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 out the starter cord slowly until you feel a resistance as the starter pawls engage then pull firmly and rapidly Never wrap the starter cord around your hand CAUTION Do not pull the starter cord all the way out and do not let go of the starter handle when the ...

Page 21: ...d 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 of the saw Never start the 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 ...

Page 22: ...an 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 suddenly Take great care when working on sloping ground 5 Take great care when cutting a tree that is under tension A tree that is under tension may spring back to its normal pos...

Page 23: ...ng in the way that might make you trip or lose your balance Lack of concentration can lead to kickback if the kickback zone of the bar accidentally touches a branch nearby tree or some other object 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...

Page 24: ...nstructions under the heading How to avoid kickback 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 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 cutting wil...

Page 25: ...the log stop cutting about 2 3 of the way through the log Turn the log and finish the cut from the opposite side The log is supported at one end There is a high risk that it will split Start by cutting from below about 1 3 of the way through Finish by cutting from above so that the two cuts meet The log is supported at both ends There is a high risk that the chain will jam Start by cutting from ab...

Page 26: ...structions under the heading Freeing a tree that has fallen badly Clearing the trunk and preparing your retreat 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 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 retreat when the tree star...

Page 27: ...m is at least 1 10 of the trunk diameter The uncut section of the trunk is called the felling hinge 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 When the felling cut and directional cut are complete the tree should start to...

Page 28: ...ion and make the tree or branch break at the point of maximum tension Never cut straight through a tree or branch that is in tension If you must cut across tree limb make two to three cuts one inch apart one to two inches deep Continue to cut deeper until tree limb bends and tension is released Cut tree limb from outside the bend after tension has been released How to avoid kickback What is kickba...

Page 29: ... the weight of the chain saw rest on the trunk 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 cutting technique 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 no...

Page 30: ...he chain stops Rec idle speed 2700 rpm Fine adjustment When the machine has been run in the carburetor should be finely adjusted The fine adjustment should be carried out by a qualified person First adjust the L jet then the idling screw T and then the H jet Conditions Before any adjustments are made the air filter should be clean and the cylinder cover fitted Adjusting the carburetor while a dirt...

Page 31: ...t is set too lean it may cause starting difficulties and poor acceleration If the H jet is set too lean the machine will have less power poor acceleration and could suffer damage to the engine Checking maintaining and servicing chain saw safety equipment 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 Dirt and we...

Page 32: ...at the idle setting when the throttle lockout is released Press the throttle lockout and make sure it returns to its original position when you release it Check that the throttle control and throttle lockout move freely and that the return springs work properly Start the chain saw and apply full throttle Release the throttle control and check that the chain stops and remains stationary If the chai...

Page 33: ...ine will overheat and this will cause damage to the cylinder and piston Never use a machine with a muffler that is in poor condition Never use a muffler if the spark arrestor screen is missing or defective The muffler is 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...

Page 34: ...r worn starter cord Remove the recoil spring from inside the pulley by tapping the pulley lightly with its inside face downwards against a work bench or the like If the spring pops out during fitting wind it up again working from the outside in towards centre Lubricate the recoil spring with light oil Fit the pulley and tension the recoil spring Fitting the starter To fit the starter first pull ou...

Page 35: ...n power difficult to start or runs poorly at idle speed always check the spark plug first before taking any further action If the spark plug is dirty clean it and check that the electrode gap is 0 020 inch 0 5 mm The spark plug should be replaced after about a month in operation or earlier if necessary Note Always use the recommended spark plug type Use of the wrong spark plug can damage the pisto...

Page 36: ... catalytic converter must be cleaned daily This is particularly important on chain saws with catalytic converters because the higher exhaust temperature requires efficient cooling of the engine and the catalytic converter unit Air Injection centrifugal cleaning Centrifugal cleaning means the following All air to the carburetor passes through the starter Dirt and dust is pushed out by the cooling f...

Page 37: ...e special winterising kit has been fitted or any measures have been taken to increase the temperature these changes must be reversed before the machine is used in normal temperature conditions Otherwise there is a risk of overheating resulting in severe damage to the engine IMPORTANT Any maintenance other than that described in this manual must be carried out by your servicing dealer retailer Heat...

Page 38: ... wear Check the lubrication hole in the bar to be sure it is not clogged Clean the bar groove If the bar has a sprocket tip this should be lubricated Lubricate the clutch drum bearing Clean the outside of the carburetor Check that the bar and chain are getting sufficient oil File off any burrs from the edges of the bar Check fuel hose for cracks or other damage Change if necessary Check the saw ch...

Page 39: ...pacity US pint litre 1 48 0 7 1 48 0 7 1 48 0 7 Oil pump capacity at 9 000 rpm ml min 5 22 5 22 5 22 Oil tank capacity US pint litre 0 78 0 37 0 78 0 37 0 78 0 37 Type of oil pump Automatic Automatic Automatic Weight Chain saw without bar or chain empty tanks lb kg 14 6 6 6 14 6 6 6 15 0 6 8 Chain bar Recommended bar lengths inch cm 16 32 40 80 16 32 40 80 16 32 40 80 Pitch inch mm 3 8 9 52 3 8 9 ...

Page 40: ...ngth inch Pitch inch Gauge inch Max nose radius Type Drive link count 16 3 8 0 058 11T Husqvarna H42 Husqvarna H48 60 18 3 8 0 058 68 20 3 8 0 058 72 24 3 8 0 058 84 28 3 8 0 058 92 16 3 8 0 050 Husqvarna H46 Husqvarna H47 Husqvarna H47S Husqvarna H82 60 18 3 8 0 050 68 20 3 8 0 050 72 24 3 8 0 050 84 28 3 8 0 050 93 32 3 8 0 050 105 WARNING This chain saw model is capable of severe kickback that ...

Page 41: ... and responsibilities you should contact your nearest authorized servicing dealer or call Husqvarna Forest Garden at 1 800 487 5951 or visit www usa husqvarna com WARRANTY COMMENCEMENT DATE The warranty period begins on the date small nonroad engine is delivered LENGTH OF COVERAGE Husqvarna Forest Garden warrants to the initial owner and each subsequent purchaser that the engine is free from defec...

Page 42: ...rts will be provided without charge to the owner if the part is under warranty EMISSION CONTROLWARRANTY PARTS LIST 1 Carburetor and internal parts 2 Intake pipe airfilter holder and carburetor bolts 3 Airfilter and fuelfilter covered up to maintenance schedule 4 Spark Plug covered up to maintenance schedule 5 Ignition Module MAINTENANCE STATEMENT The owner is responsible for the performance of all...

Page 43: ...and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is released Shut off the engine before setting the chain saw down Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance When cutting a limb that is under tension be alert for springback so that y...

Page 44: ...95 z U23 5X z U23 5X 2010 02 04 1153181 95 Original instructions The engine exhaust from this product contains chemical known to the State of California to cause cancer birth defects or other reproductive harm ...

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