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GENERAL SAFETY PRECAUTIONS

 

English

 

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 9

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. It takes a certain force to move the hand guard 
forward. If your hand only lightly touches the front guard 
or slips over it, the force may not be enough to trigger the 
chain brake. You should also maintain a firm grip of the 
chain saw handles while working. If you do and 
experience a kickback, your hand may never leave the 
front handle and will not activate the chain brake, or the 
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 saw 
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. 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 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 
if the 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) (i.e. when you grasp the handle) it releases the throttle 
control (B). When you release the handle the throttle 
control and the throttle lockout both move back to their 
original positions. This arrangement means that the 
throttle control is automatically locked at the idle setting.

 

Chain catcher

 

The chain catcher is designed to catch the chain if it snaps 
or jumps off. This should not happen if the chain is 
properly tensioned (see instructions under the heading 
Assembly) and if the bar and chain are properly serviced 
and maintained (see instructions under the heading 
General working instructions).

 

Right hand guard

 

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.

Summary of Contents for 576 XP EPA III

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

Page 2: ...s for certain markets Symbols in the operator s manual Switch off the engine by moving the stop switch to the STOP position before carrying out any checks or maintenance Always wear approved protective gloves Regular cleaning is required Visual check Protective goggles or a visor must be worn Refuelling Filling with oil and adjusting oil flow The chain brake must be engaged when the chain saw is s...

Page 3: ...g and stopping 19 WORKING TECHNIQUES Before use 21 General working instructions 21 How to avoid kickback 28 MAINTENANCE General 29 Carburetor adjustment 29 Checking maintaining and servicing chain saw safety equipment 29 Muffler 31 Starter 32 Air filter 33 Spark plug 33 Lubricating the bar tip sprocket 33 Needle bearing lubrication 34 Adjustment of the oil pump 34 Cooling system 34 Air Injection c...

Page 4: ... 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 5: ...rottle lock 6 Fuel tank 7 Starter 8 Chain oil tank 9 Throttle lockout 10 Cylinder cover 11 Front handle 12 Front hand guard 13 Muffler 14 Bar tip sprocket 15 Chain 16 Bar 17 Bumper spike 18 Chain catcher 19 Chain tensioning screw 20 Oil pump adjustment screw 21 Clutch cover 22 Right hand guard 23 Throttle control 24 Operator s manual EPA 25 Combination spanner 26 Bar guard 27 Information and warni...

Page 6: ...ever 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 start the machine This can mean a risk of serious personal injury Therefore remove the spark plug cap when the machine is not under ...

Page 7: ...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 increase if machine maintenance is not carried out cor...

Page 8: ...he 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 If this 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 ...

Page 9: ... 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 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 ...

Page 10: ...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 11: ...e 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 The spacing between the ...

Page 12: ... 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 cutting teeth you will need a round file and a file gauge See instructions under the heading Technical ...

Page 13: ...ting 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 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 Tension the...

Page 14: ... 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 inches away After 1 minute running at 3 4 throttle you should see a distinct line of oil on...

Page 15: ...nly 0 16 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 16: ...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 17: ...unning 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 referred to as outboard oil rated TCW Never use oil intended for four stroke engines Mixing ratio 1 50 2 ...

Page 18: ...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 Ensure the machine is cleaned and that a complete service is carried out before long term storage The bar guard must always be fitted to the cutting attachment when the mach...

Page 19: ...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 20: ...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 21: ...tting bushes i e cutting many small branches at the 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 suddenly Take great care when working on sloping ground 5 Take great care when cutting a tree that i...

Page 22: ...ol Do not let go of the handles 3 Most kickback 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 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 a...

Page 23: ...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 24: ... all the way through the log from above Avoid letting the chain touch the ground as you finish the cut Maintain full throttle but be prepared for what might happen If it is possible can you turn 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 fro...

Page 25: ...nded Another very important factor which does not affect the 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 point to avoid is letting the tree fall onto another tree It is very dangerous to remove a trapped tree and there is high accident risk See instructions under the heading Freeing ...

Page 26: ...hosen felling direction Felling cut The felling cut is made from the opposite side of the tree and it must be perfectly horizontal Stand on the left side of the tree and cut on the pull stroke Make the felling cut about 1 5 2 inches 3 5 cm above the bottom directional cut Finish the felling cut parallel with the directional cut line so that the distance between them is at least 1 10 of the trunk d...

Page 27: ...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 if it was bent even more Decide which is the safest way 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 a winch General ...

Page 28: ...lose as possible to the chain saw for maximum control If possible let 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 Kickback can happen very suddenly and violently kicking the chain saw bar and chain back at the user If this happens...

Page 29: ...or in the ignition system that limits the maximum speed to 13600 rpm When the speed governor is activated you will get the same sound experience as when the chain saw 4 cycles Correctly adjusted carburetor A correctly adjusted carburettor means the machine accelerates without hesitation and it four strokes a little at full throttle In addition the chain should not rotate when idling Checking maint...

Page 30: ...s around the handles 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 Throttle lockout Make sure the throttle control is locked 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...

Page 31: ... the engine stops when you move the stop switch to the stop setting Muffler Never use a machine that has a faulty muffler Regularly check that the muffler is securely attached to the machine Some mufflers are equipped with a special spark arrestor screen If your machine has this type of muffler you should clean the screen at least once a week This is best done with a wire brush A blocked screen wi...

Page 32: ...lley Insert the 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 turn the starter pulley about 2 turns clockwise Note Check that the pulley can be turned an additional 1 2 turn when the starter cord is pulled all the way out Changing a broke...

Page 33: ... damaged air filter must always be replaced A HUSQVARNA chain saw can be equipped with different types of air filters according to working conditions weather season etc Contact your dealer for advice Spark plug The spark plug condition is influenced by Incorrect carburetor adjustment An incorrect fuel mixture too much or incorrect type of oil A dirty air filter These factors cause deposits on the ...

Page 34: ...e 3 Fins on the flywheel 4 Cooling fins on the cylinder 5 Cylinder cover directs cold air over the cylinder Clean the cooling system with a brush once a week more often in demanding conditions A 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 ...

Page 35: ... blocked This measure requires the air filter to be cleaned more regularly Temperature 5 C 23 F or colder For running the machine in cold weather or powder snow a special cover is available which is mounted on the starter housing This reduces the intake of cold air and prevents large amounts of snow from being sucked in CAUTION If the special winterising kit has been fitted or any measures have be...

Page 36: ... 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 37: ...uel and lubrication system Manufacturer of carburetor Zama Carburetor type C1M EL40 Fuel tank capacity US pint litre 1 48 0 7 Oil pump capacity at 9 000 rpm ml min 5 22 Oil tank capacity US pint litre 0 80 0 40 Type of oil pump Automatic Weight Chain saw without bar or chain empty tanks lb kg 14 9 6 8 XPG 14 9 6 8 Chain bar Recommended bar lengths inch cm 16 32 40 80 Pitch inch mm 3 8 9 52 Thickne...

Page 38: ...ar Chain Length inch Pitch inch Gauge inch Max nose radius Type Drive link count 16 3 8 0 058 11T or ATM 1 33 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 32 3 8 0 058 105 16 3 8 0 050 11T or ATM 1 33 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 ...

Page 39: ... initial owner and each subsequent purchaser that the engine is free from defects in materials and workmanship which cause the failure of a warranted part for a period of two years WHAT IS COVERED REPAIR OR REPLACEMENT OF PARTS Repair or replacement of any warranted part will be performed at no charge to the owner at an approved Husqvarna Forest Garden servicing dealer If you have any questions re...

Page 40: ...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...

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