Husqvarna 40 Chainsaw User Manual
Contents
1. IMPORTANT Always use the recommended spark plug type An incorrect spark plug can severely damage the piston cylinder Muffler e rai The muffler is designed in order 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 Some mufflers are equipped with a special screen If your saw has this type of muffler you should clean the screen at least once a week This is done with a wire brush CAUTION The screen must be replaced if damaged The saw will be overheated if the screen is clogged This results in damage on the cylinder and the piston Never use a saw with a clogged or defective muffler Needle bearing maintenance The clutch drum is equipped with one of the following chain sprockets A S 4 e Spur sprocket A the chain d sprocket is welded on the 3S drum NN e Rim sprocket B exchangeable Both versions have built in needle bearing at the drive shaft whitch has to be greased regularly once a week CX NOTE Use only high quality bearing grease English 31 MAINTENANCE Cooling system To obtain the lowest possible running temperature the saw is equipped with a cooling system The cooling system consists of 1 Air intake on the starter unit 2 Air guide plate 3 Fan blades on the2. We recommend the use of a raker gauge to achieve the correct clearance and bevel on the raker lip The risk of kickback is increased if the raker clearance is too large D Setting the raker clearance p T e Before setting the raker clearance the cutting teeth should be newly sharpened We recommend that you adjust the raker clearance every third time you sharpen the chain NOTE This recommendation assumes that the length of the cutting teeth is not reduced excessively To adjust the raker clearance you will need a FLAT FILE and a RAKER GAUGE Place the gauge over the raker lip Place the file over the part of the lip that protrudes through the gauge and file off the excess The clearance is correct when you no longer feel any resistance as you draw the file over the gauge 3 Tensioning the chain A slack chain may jump off and cause serious or even fatal injury e 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 saw chain has a running in period during which you should check the tension more frequently Tension the chain as tightly as possible but not so tight that you cannot pull it round freely by hand English 13 SAFETY INSTRUCTIONS 1 Undo the bar nuts that hold the clutch cover and chain brak
3. e DRIVE LINK WIDTH mm inches e NUMBER OF DRIVE LINKS e LEVEL OF KICKBACK REDUCTION The level of kickback reduction offered by a chain is indicated by its model number See the Technical data section to find the model numbers of chains that are recommended for use with your saw English 11 SAFETY INSTRUCTIONS 2 Sharpening your chain and adjusting raker clearance The risk of kickback is increased with a badly sharpened chain A General information on sharpening cutting teeth e Never use a blunt chain When the chain is blunt you have to exert more pressure to force the bar through the wood and the cuttings will be very small If the chain is very blunt it will not produce any cuitings at all just wood powder e A sharp chain eats its way through the wood and produces long thick cuttings The cutting part of the chain is called the CUTTING LINK and this consists of a CUTTING TOOTH A and the RAKER LIP B The cutting depth is determined by the difference in height between the two When you sharpen a cutting tooth there are five important factors to remember FILING ANGLE CUTTING ANGLE FILE POSITION ROUND FILE DIAMETER FILE DEPTH See the Technical data section for information about sharpening your saw chain 12 English lt is very difficult to sharpen a chain correctly without the right equipment We recommend you use a file gauge This will help
4. Remove any branches that are in the way To do this it is best to work from the top down and keep the trunk between you and the chain saw Never limb above shoulder height ne AO SA Cr y 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 starts to fall Your path of retreat should be roughly 135 degrees behind the intended felling direction D Felling Felling is done using three cuts First you make the DIRECTIONAL CUTS which consist of the TOP CUT and the BOTTOM CUT followed by the FELLING CUT By placing these cuts correctly you can control the felling direction very accurately DIRECTIONAL CUT To make the DIRECTIONAL CUT you begin with the TOP CUT Stand to the right of the tree and cut downwards at an angle Next make the BOTTOM CUT so that it finishes at the end of the TOP CUT The directional cut should run 1 4 of the 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 perfectly horizontal and at right angles 90 to the chosen felling direction 22 English FELLING CUT The felling cut is made from the opposite side of the tree and it must be perfectly horizontal Stand on the left
5. A Safe distance The safe distance between a tree that is to be felled and anyone else working nearby is at least 21 2 tree lengths Make sure that no one else is in this risk zone before or during felling B Felling direction The aim is to fell the tree in the best possible position for subsequent limbing and cross cutting You want it to fall on ground where you can move about safely The main point to avoid is letting the tree fall onto another tree It can be both difficult and dangerous to remove a tree in sucha position see point 4 in this section Once you have decided which way you want the tree to fall you must judge which way the tree would fall naturally Several factors affect this Lean of the tree Bend Wind direction Arrangement of branches Weight of snow You may find you are forced to let the tree fall in its natural direction because it is impossible or dangerous to try to make it fall in the direction you first intended 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 During critical felling operations hearing protectors should be lifted immediately when sawing is completed so that sounds and warning signals can be heard English 2 1 SAFETY INSTRUCTIONS C Clearing the trunk and preparing your retreat eZ 71 A yl
6. Make sure the chain does not touch the ground or any other object Regularly check that the brake band is at least 0 6 mm thick at its thinnest point 2 Checking the front hand guard Grasp the saw firmly wrapping your fingers and gt i thumbs around the handles A Make sure the FRONT HAND GUARD is not damaged and Apply full throttle and that there are no visible activate the chain brake defects such as cracks by tilting your wrist forward onto the front hand guard Do not let go of the front handle The chain should stop ey immediately Move the front hand guard forwards and back to make sure it runs freely and that it is securely anchored to the clutch cover 8 English i JJ SAFETY INSTRUCTIONS Throttle lock 4 Right hand guard eae e Make sure the throttle Check that the right hand control is locked at the guard is not damaged and VY idle setting when you that there are no visible release the throttle lock defects such as cracks Press the throttle lock and make sure it returns to its Original position when you release it 5 Vibration damping system Regularly check the vibration damping units for cracks or deformation Check that the throttle control and throttle lock move freely and that the return springs work properly Make sure the vibration damping units are securely attached to the engine unit and handles Start the saw and apply full throttle
7. Operator s manual LL Please read these instructions carefully and make e sure you understand them before using the saw 101 88 42 26 KEY TOSYMBOLS Symbols on the chain saw CAUTION Chain saws can be dangerous Careless or incorrect use can result in serious or fatal injury to the operator or others Please read the instructions carefully and make sure you understand them before using the saw Always wear e Approved protective helmet e Approved hearing protection e Protective glasses or visor 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 Re Always wear approved protective gloves po Regular cleaning is required Visual check Protective glasses or a visor must be worn x R 2 English CONTENTS Before using a new saw Read the instructions carefully Check cutting equipment is correctly fitted and adjusted See page 25 Refuel and start the saw Check the carburettor settings See pages 26 29 Do not use the saw until sufficient chain oil has reached the chain see page 14 IMPORTANT If the carburettor mixture is too lean it greatly increases the risk of engine failure Poor maintenance of the air filter will cause carbon build up on the spark plug and lead to difficult starting If the chain is badly adjusted it will cause increased wear or damage to the bar drive spro
8. Thickness of drive link inch 0 050 0 058 0 050 0 058 mm 139 1 5 1 3 1 5 Number of teeth on drive Bar and chain combinations poesel 4 The following combinations are CE approved Bar Chain Note 1 Equivalent noise level is according to ISO 7182 and Length Pitch Max ISO 9207 calculated as the time weighted energy total for inches inches tip radius noise levels under various working conditions with the following time distribution 1 3 idle 1 3 full load 1 3 full speed ne tl reeled aoe Note 2 Equivalent vibration level is according to ISO 7505 16 0 325 10T Husqvarna H25 calculated as the time weighted energy total for vibration levels 18 0 325 10T Husqvarna H25 under various working conditions with the following time distribution 1 3 idle 1 3 full load 1 3 full speed 13 0 325 10T Husqvarna H30 15 0 325 10T Husqvarna H30 16 0 325 10T Husqvarna H30 18 0 325 10T Husqvarna H30 Inch mm Inch cm dl 13 33 56 15 38 64 18 46 72 0 025 0 65 13 33 56 15 38 64 18 46 72 0 025 0 65 34 English We hope you find the links below useful For further gardening information visit Blower Vacs Cultivators Electric chainsaws Garden tractors Hover mowers Lawn scarifiers Petrol hedge cutters Ryobi strimmers Kee Caa Gardening Tools Direct Brush cutters Cylinder lawn mowers Fertiliser spreaders Garden vacuums Husqvarna chainsaws Lawn tractors Ride on lawn mowers Scarifiers To
9. 4 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 if the bar has a sprocket tip this should be lubricated 5 Check the function of the oiler to be sure the bar and chain receive proper lubrication 6 Sharpen the chain and check its tension and condition Check the drive sprocket for wear Replace if necessary 7 Check the starter and starter cord for wear or damage Clean the air intake slots on the starter housing 8 Check for any loose nuts and screws and retighten if necessary 9 Test the stop switch to be sure it shuts off the engine Weekly maintenance 1 Check that the AV elements are not soft or torn 2 Lubricate the clutch drum bearing 3 File off burrs if any on the sides of the bar 4 Clean the spark plug and check the gap The correct gap is 0 5 mm 020 inch 5 Check the starter and the recoil spring Clean the fins on the flywheel 6 Clean the cooling fins on the cylinder 7 Clean or change the screen in the muffler 8 Clean the carburettor body and air box 2 Check the clutch centre 3 Clean the outside of the 4 Check the fuel filter 5 Flush the inside off the 6 Flush the inside of the oil 7 Check all cables and MAINTENANCE Monthly maintenance 1 Check the brake band on the chain brake for wear clutch drum and clutch spring for
10. Release the throttle control and check that the chain stops and remains stationary If the chain rotates when the throttle is on idle setting you should check the carburettor idle adjustment See the section on Maintenance 6 Stop switch ple Start the engine and make sure the engine stops when you move the Chain catcher stop switch to the stop setting Check that the CHAIN CATCHER is not damaged and is firmly attached to the body of the saw pol English 9 SAFETY INSTRUCTIONS 7 Muffler Never use a chain saw that has a faulty muffler Regularly check that the muffler is securely attached to the chain saw If the muffler on your saw is fitted with a spark arrestor mesh this must be cleaned regularly A blocked mesh will cause the engine to overheat and may lead to serious damage Never use a muffler if the spark arrestor mesh is missing or defective NEVER USE A CHAIN SAW WITH FAULTY SAFETY EQUIPMENT CARRY OUT THE CHECKS AND MAINTENANCE MEASURES DESCRIBED IN THIS SECTION IF YOUR CHAIN SAW FAILS ANY OF THESE CHECKS CONTACT YOUR SERVICE AGENT TO GET IT REPAIRED 10 English CUTTING EQUIPMENT This section describes how to choose and maintain your cutting equipment in order to e Reduce the risk of kickback e Reduce the risk of the chain breaking or jumping e Obtain maximum cutting performance e Extend the life of cutting equipment
11. flywheel 4 Cooling fins on the cylinder 5 Cylinder cowling Supplies 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 saw overheating which causes damage to piston and cylinder Centrifugal cleaning Air Injection Centrifugal cleaning means the following All air to the carburettor is carried through the starter Dirt and dust is centrifuged away by the cooling fan IMPORTANT In order to keep the function of the centrifugal cleaning a continous maintenance and care must be made e Clean the air intake to the starter the fan wings of the flywheel the space around the flywheel inlet pipe and carburettor space 32 English Below you will find some general maintenance instructions If you have more questions contact your servicing dealer Daily maintenance 1 Check the throttle trigger for smooth operation If any binding occurs or if engine fails to return to idle the saw should be taken to your dealer before it is used again Also be sure that the trigger cannot be pulled until the throttle trigger lockout is depressed 2 Clean the chain brake and check its function according to the instructions Make sure that the chain catcher is undamaged Otherwise replace it immediately 3 Clean or replace the air filter as necessary Check for damage or holes
12. idling The fuel quantity required in relation to the air flow provided by opening the throttle is adjusted by the L and H jets If they are screwed clockwise the air fuel ratio becomes leaner less fuel and if they are turned anti clockwise the ratio becomes richer more fuel A leaner mixture gives a higher engine speed and a richer mixture give a lower engine speed The T screw regulates the idling speed If the screw T is turned clockwise this gives a higher idling speed anti clockwise a lower idling speed Basic setting and running in The carburettor is adjusted to a basic setting when the saw is tested at the factory The basic setting is H 1 turns respective L 1 1 turns To provide the engine s components with a good level of lubrication running in the carburettor should be set for a richer fuel mixture for the first 3 4 hours of operating To obtain this adjust the overspeed 6 700 rpm under the recommended max overspeed If you do not have the possibility to check the overspeed using a tachometer the H jet should not be set for a leaner mixture than that stated for the basic setting The recommended overspeed should not be exceeded NOTE If the chain rotates while idling the T screw should be adjusted anti clockwise until it stops Fine adjustment When the saw has been run in the carburettor should be finely adjusted The fine adjustment should be carried out by qualified person First adjust t
13. therefore fitted with a SPARK ARRESTOR MESH Check whether your saw is fitted with such a mesh With this type of muffler it is very important that you follow the instructions on checking maintaining and servicing your saw see the section on Inspecting maintaining and servicing chain saw safety equipment The muffler gets very hot in use and remains so for a short time afterwards DO NOT TOUCH THE MUFFLER IF IT IS HOT English SAFETY INSTRUCTIONS Inspecting maintaining and servicing 3 Checking the automatic brake chain saw safety equipment pla SPECIAL TRAINING IS REQUIRED to service and repair chain saws This is especially true of chain saw safety equipment If your chain saw fails any of the checks described below take it to your SERVICE AGENT Hold the chain saw over a stump or other firm object Let go of the front handle so that the bar falls onto When you buy any of our products we tne stump guarantee the availability of professional repairs and service If the retailer who sells your saw is not a SERVICING DEALER ask him for the address of your nearest SERVICE AGENT 1 Chain brake and front hand guard 1 Checking brake band wear When the bar hits the stump the brake should be applied Ti Brush off any sawdust resin and dirt from the chain brake and clutch drum Dirt and wear can impair operation of the brake Start the chain saw and place it on firm ground
14. Position yourself so that you will be clear of the tree or branch when it springs free b Make one or more cuts at or near the BREAKING POINT Make as many cuts of sufficient depth as necessary to reduce the tension and make the tree or branch break at the BREAKING POINT Never cut straight through a tree or branch that is IS in tension English 23 What is what 1 2 3 4 D 6 7 8 9 10 11 12 13 14 24 Cylinder cover Front handle Front hand guard Starter cover Chain oil tank Starter handle Adjuster screw carburettor Choke control Start throttle lock Rear handle Stop switch Ignition on off switch Fuel tank Muffler Bar tip sprocket Saw chain English WHAT IS WHAT lo 16 17 18 19 20 21 23 24 20 26 Saw bar Bumper Chain catcher Catches chain if it jumps or breaks Clutch cover Right hand guard Protects right hand if chain breaks or jumps Throttle control Throttle lock Prevents accidental operation of throttle control Combination spanner Chain tensioning screw Operator s manual Bar guard ASSEMBLY Mounting guide bar and chain Always wear gloves when working with the chain in order to protect your hands from injury Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle Take off the bar nuts and remove the clut
15. specifically for lubrication of saw chains is unavailable ordinary EP 90 transmission oil may be used e Never use waste oil This is dangerous for yourself the saw and the environment B Filling with chain oil All our chain saws have an automatic chain lubrication system On some models the oil flow is also adjustable e The sizes of the chain oil tank and fuel tank have been chosen so that the saw will run out of fuel before running out of oil This means that you should never run with a dry chain However this safety feature requires that you use the right sort of chain oil if the oil is too thin it will run out before the fuel and that you adjust the carburettor as recommended a weak mixture may mean that the fuel lasts longer than the oil You should also use the recommended cutting equipment a bar that is too long will use more chain oil The above conditions also apply to models with an adjustable oil pump SAFETY INSTRUCTIONS C Checking chain lubrication e Check the chain lubrication each time you refuel Aim the tip of the saw ata light coloured surface about 20 cm away After 1 minute running at 3 4 throttle you should see a distinct line of oil on the light surface 1 Check that the oil channel in the bar is not obstructed Clean if necessary 2 Check that the groove in the edge of the bar is clean Clean if necessary 3 Check that the bar tip sprocket turns freely and that
16. you obtain the maximum kickback reduction and cutting performance from your chain The following faults will increase the risk of kickback considerably e FILE ANGLE TOO LARGE CUTTING ANGLE TOO SMALL FILE DIAMETER TOO SMALL B Sharpening cutting teeth To sharpen cutting teeth you will need a ROUND FILE and a FILE GAUGE See the Technical data section for information on the size of file and gauge that are recommended for your saw chain 1 Check that the chain is correctly tensioned A slack chain is difficult to sharpen correctly 2 Always file cutting teeth from the inside face reducing the pressure on the return stroke File all the teeth on one side first then turn the saw over and file the teeth on the other side 3 File all the teeth to the same length When the length of the cutting teeth is reduced to 4 mm 0 16 the chain is worn out and should be replaced SAFETY INSTRUCTIONS C General advice on setting raker clearance e When you sharpen the cutting teeth you reduce the RAKER CLEARANCE cutting depth To maintain cutting performance you must file back the raker teeth to the recommended height See the Technical data section to find the raker clearance for your saw chain On a low kickback cutting link the front edge of the raker lip is rounded It is very important that you maintain this radius or bevel when you adjust the raker clearance
17. AW SAFETY EQUIPMENT This section explains the various safety features of the saw how they work and basic inspection and maintenance you should carry out to ensure safe operation See the What is what section to find out where these components are on Your saw NEVER USE A CHAIN SAW THAT HAS FAULTY SAFETY EQUIPMENT Carry out the inspection maintenance and service routines listed in this section 1 Chain brake and front hand guard 2 Throttle lock 3 Chain catcher 4 Right hand guard 5 Vibration damping system 6 Stop switch 7 Muffler 8 Cutting equipment see Cutting equipment section SAFETY INSTRUCTIONS 1 Chain brake and front hand guard YOUR chain saw is equipped with a chain brake that is desig ned to stop the chain immediately if you get a kickback The chain brake reduces the risk of accidents but only You can prevent them Take care when using your saw and make sure the kickback zone of the bar never touches any object 1 The chain brake A can either be activated manually by your left hand or automatically by the inertia release mechanism a free swinging pendulum On most of our models the front hand guard acts as a counterweight in case of kickback 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 D
18. The 5 basic rules 1 Only use cutting equipment recommended by us See the Technical data section 2 Keep the chain cutting teeth properly sharpened Follow our instructions and use the recommended file gauge A damaged or badly sharpened chain increases the risk of accidents 3 Maintain the correct raker clearance Follow our instructions and use the recommended raker gauge Too large a clearance increases the risk of kickback 4 Keep the chain properly tesioned If the chain is Slack it is more likely to jump off and lead to increased wear on the bar chain and drive sprocket GOGGIN LN A SOD 5 Keep cutting equipment well lubricated and properly maintained A poorly lubricated chain is more likely to break and lead to increased wear on the bar chain and drive sprocket SAFETY INSTRUCTIONS 1 Cutting equipment designed to minimise kickback Faulty cutting equipment or the wrong combination of bar and chain increases the risk of kickback Use only the bar and chain combinations recommended in the Technical data section The only way to avoid kickback is to make sure that the kick back zone of the bar never touches anything By using cutting equipment with built in kickback protection and keeping the chain sharp and well maintained you can reduce the effects of kickback A Bar The smaller the tip radius the smaller the kickback zone and the lower the chance of kickba
19. Y INSTRUCTIONS GENERAL SAFETY PRECAUTIONS Chain saws are designed solely for cutting wood The only cutting equipment that can be used with this chain saw are the combinations of bars and chains recommended in the Technical data section 2 Never use a chain saw if you are tired if you have drunk alcohol or if you are taking medication that affects your vision your judgement or your co ordination 3 Always wear suitable protective clothing See the section on Personal protective equipment 4 Never use a chain saw that has been modified in any way from its original specification 5 Never use a chain saw that is faulty Carry out the regular checks maintenance and service routines described in this manual Some maintenance and service measures must be carried out by trained specialists See the section on Maintenance 6 STARTING AN e Never start a chain saw unless the bar chain and clutch cover are fitted correctly See section on Assembly Prolonged inhalation of exhaust gases from the engine chain lubrication oil mist and or saw dust can be unhealthy Never start a chain saw indoors Exhaust fumes can be dangerous e Before starting the saw make sure there are no people or animals nearby who might be put at risk e Place the saw on the ground and hold the rear handle down with your right foot Grasp the front handle firmly using your lef
20. ay that it cannot activate the front hand guard In this position the chain brake can only be activated by the inertia action of the counterweight The inertia activated chain brake increases your safety but there are certain factors to remember see point 6 above 6 English 2 Throttle lock The throttle lock is designed to prevent accidental opera tion of the throttle control When you press the lock A i e when you grasp the handle it releases the throttle trigger B When you release the handle the throttle trigger and the throttle lock both move back to their original positions This movement is controlled by two independent return springs This arrangement means that the throttle control is automatically locked at the idle setting when you release the handle 3 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 section on Assembly and if the bar and chain are properly serviced and maintained See section on General working instructions 4 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 SAFETY INSTRUCTIONS 5 Vibration damping system Your chain saw is equipped with a vibration damping system that is designed to minimise vibrations a
21. ch cover 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 and in the groove on the bar Begin on the top side of the bar Make sure that the edges on the cutting links are facing forward on the top side of the bar Fit the clutch cover and locate the chain adjuster pin in the hole on the bar Check that the drive links of the chain fit correctly on the drive sprocket and that the chain is in the groove on the bar Tighten the bar nuts finger tight Tension the chain by using the combination wrench Turn the chain adjuster screw clockwise The chain should be tensioned until it fits snugly on the underside of the bar T Hold up the tip of the bar and tighten the chain The chain is correctly tensioned when there is no slack on the underside of the bar but it can still be turned easily by hand Hold up the bar tip and tighten the bar nuts with the combination wrench 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 gives good cutting performance and long lifetime Fitting a spike bumper To fit a spike bumper contact your service agent English 25 FUEL HANDLING Fuelmix Mixing e Always mix the petrol and IMPORTANT The chain saw is equipp
22. ck B Saw chain A saw chain is made up of a number of links which are available in standard and low kickback versions None Standard Low kickback CUTTING LINK Combining these links in different ways gives different degrees of kickback reduction In terms of kickback reduction alone four different types of link are available DRIVE LINK SIDE LINK Kickback reduction Cutting link Drive link Side link EXTRA HIGH C Some terms that describe the bar and chain When the cutting equipment supplied with your saw becomes worn or damaged you will need to replace it Use only the type of bar and chain recommended by us See the Technical data section to find out which equipment is recommended for your saw Bar e LENGTH inches cm NUMBER OF TEETH ON BAR TIP SPROCKET T Small number small tip radius low kickback CHAIN PITCH inches The spacing between the drive links of the chain must match the spacing of the teeth on the bar tip sprocket and drive sprocket 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 e BAR GROOVE WIDTH inches mm The groove in the bar must match the width of the chain drive links e SAW CHAIN OIL HOLE AND HOLE FOR CHAIN TENSIONER The bar must be matched to the chain saw design Saw chain e SAW CHAIN PITCH inches Spacing between drive links
23. cket and chain Under no circumstances should you modify the original design of the chain saw without approval from the manufacturer Always use genuine spare parts Unauthorized modifications or accessories may lead to serious injury or death A chain saw is a dangerous tool if used carelessly or incorrectly and can cause serious even fatal injuries It is very important that you read and understand these instructions Contents Key to symbols cece 2 Safety instructions Personal protective equipment cc6cc 4 Chain saw safety equipment cecceeeees 4 Inspecting maintaining and servicing chain saw safety SUPT asada testes wdes descent ceiemiee nee a E 8 Cutting equipment csecceeseeeeeeeeeeeeseeeeess 10 How to avoid kiclback icesccseasevarnesesaeeace seascetey 16 General safety precautions 0ccceeeeeeees 18 General working instructions c0ccee 19 What is what Whats UNA sosai n eaaa 24 Assembly Mounting guide bar and chain cccccessseeeeeeeeeeeseeeeees 25 Fuel handling FUSIN oe ES 26 gE EE E E A A 27 Start and stop SCURI E La S A E E E E EE EET 28 Maintenance CDUS Oeste ea EEE 29 Starter device ccccseseeeecececceceeeceeeeeseeeeeeeeeeeesseeeseeeeeeseeees 30 AGT seere a EEEE EERE 31 opak OIG sessies ienes e Oa 31 AE e E EA T EE EE T P A AT 31 Needle bearing maintenance nnnnsosnnnnnens
24. cold 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 cutting 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 Check the area around you for possible obstacles such as roots rocks branches ditches etc in case you have to move suddenly Take great care when working on sloping ground 5 Take the utmost care when cutting through branches or logs that are in tension A log or branch that is in tension can suddenly spring back into its natural position before or after you cut it If you stand on the wrong side or start cutting in the wrong place it may strike you or your chain saw This could make you lose control and cause a serious accident 6 Before moving your chain saw switch off the engine and lock the chain using the chain brake Carry the saw with the bar and chain pointing backwards Fit a guard to the bar before carrying the saw any distance ple 7 Never put a chain saw down while the engine is running unless you have it in clear view and the chain brake is on Switch the engine off before leaving your chain saw for any length of time English 19 SAFETY INSTRUCTIONS 2 Basic cutting technique General e Always use full throttle when cutting e Reduce the speed to
25. ct a qualified servicing dealer who has a revolution counter at his disposal The maximum speed recommended must not be exceeded Correctly adjusted carburettor A correctly adjusted carburettor means that the saw accelerates without hesitation and the saw 4 cycles a little at max speed Furthermore the chain must not rotate at idling A too lean adjusted low speed needle L may cause starting difficulties and bad acceleration A too lean adjusted high speed needle H gives lower power less capacity bad acceleration and or damage to the engine A too rich adjustment of the two speed needles L and H gives acceleration problems or too low working speed English 29 MAINTENANCE Starter device WARNING e When the recoil spring is assembled in the starter housing it is in tensioned position and can when treated carelessly pop out and cause injuries e Always be careful when changing the recoil spring or the starter cord Always wear safety goggles for eye protection Changing a broken or worn starter cord e Loosen the screws that hold the starter device against the crankcase and remove the starter device e Pull out the cord approx 30 cm and lift it up into the notch in the pulley Zero set the recoil spring by letting the pulley rotate slowly backwards Undo the screw in the centre of the pulley and remove the pulley e Insert and fasten a new starter cord in the pulley Wind approx 3 turns of the start
26. e using the combination spanner Then tighten the nuts by hand as tight as you can 2 Raise the tip of the bar and stretch the chain by tightening the chain tensioning screw using the combination spanner Tighten the chain until it hangs slack on the underside of the bar 3 Use the combination spanner to tighten the bar nuts while lifting the tip of the bar at the same time Check that you can pull the chain round freely by hand and that it is not slack on the bottom of the bar The position of the chain tensioning screw varies from model to model See the What is what section to find out where it is on your saw 14 English 4 Lubricating cutting equipment Poor lubrication of cutting equipment may cause the chain to snap and lead to serious even fatal injuries Prolonged inhalation of exhaust gases from the engine chain lubrication oil mist and or saw dust can be unhealthy A Chain oil e Chainsaw chain oil must demonstrate good adhesion to the chain and also maintain its flow caracteristics regardless of whether it is warm Summer or cold winter weather e As a chainsaw 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 e If our own chain oil is not available standard chain oil is recommended e In areas where oil
27. e bar length However these methods involve a much greater risk that the kickback zone of the bar will come into contact with the tree UNLESS YOU HAVE SPECIAL TRAINING WE ADVISE YOU NOT TO FELL TREES WITHA DIAMETER LARGER THAN THE BAR LENGTH OF YOUR SAW E Limbing DURING LIMBING PAY CLOSE ATTENTION TO THE POSITION OF THE KICKBACK ZONE OF THE BAR WHEN YOU ARE LIMBING BRANCHES THAT ARE IN TENSION Q MOST KICKBACK ACCIDENTS HAPPEN Make sure there are no obstacles in your way Work on the left side of the trunk Work close to the saw for maximum control If possible let the weight of the saw rest on the trunk Keep the tree between you and the saw as you move along the trunk F Cutting the trunk into logs See chapter General working instructions point 2 Basic cutting technique 4 Freeing a tree that has fallen badly high accident risk A Freeing a Trapped tree The safest method is to use a winch A Tractor mounted B Portable B Cutting trees and branches that are in tension Preparations a Work out which way the tree or branch will move if released and where the natural BREAKING POINT is i e the place it would break if it was bent even more b 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 advice a
28. e sections on Cutting equipment and Technical data The risk of accident is increased if you use the wrong cutting equipment or a chain that is not sharpened correctly Using the wrong combi nation of bar and chain can increase the risk of accidents SAFETY INSTRUCTIONS GENERAL WORKING INSTRUCTIONS This section describes basic safety rules for using a chain saw This information is no substitute for professional skills and experience If you get into a situation where you feel unsafe stop and seek expert advice look under FORESTRY SERVICES in the telephone directory DO NOT ATTEMPT ANY TASK THAT YOU FEEL UNSURE OF Important 1 Before using a chain saw you must understand the effects of kickback and what causes it See the section on How to avoid kickback 2 Before using a Saw you must understand the difference between sawing with the top and bottom edges of the bar See the section on How to avoid kickback 1 Basic safety rules 1 Look around you e to make sure there are no people animals or other objects nearby that might affect your work to make sure that none of the above might come within reach of your saw or be injured by falling trees Follow the instructions above but do not use a chain saw ina situation where you cannot call for help in case of an accident 2 Do not use the saw in bad weather such as dense fog heavy rain strong wind intense cold etc Working in
29. ed with a two stroke oil in a clean container engine and must always been run using a mixture of petrol and intended for fuel two stroke engine oil It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is e Always start by filling half obtained When mixing small amounts of fuel even small the amount of the petrol to inaccuracies can drastically affect the ratio of the mixture be used Then add the entire amount of oil Mix hake the fuel mi Always provide for good ventilation when i ie crane cee handling fuel of petrol e Mix shake the fuel mixture thoroughly before filling the Petrol saw s fuel tank e Use good quality unleaded or leaded petrol e The lowest octane recommended is 90 If you run the engine ona lower octane grade than 90 so called knocking can occur This gives rise to a high engine temperature which can result in serious engine damage e When working with continuous high revs e g delimbing a higher octane grade is recommended e Do not mix more than max one month s supply of fuel If the saw is not used for some time the fuel tank should be emptied and cleaned Two stroke oil For the best results use HUSQVARNA two stroke oil which is especially developed for chain saws Mixing ratio 1 50 2 If HUSQVARNA two stroke oil is not available you may use another two stroke oil of good quality that is intended for air co
30. er cord on to the pulley Assemble the starter pulley against the recoil spring so the end of the spring engages to the pulley Fit the screw in the centre of the pulley Carry the starter cord through the hole in the starter housing and the starter handle Make a knot on the starter cord 30 English Tensioning the recoil spring e Lift the starter cord up in the notch on the starter pulley and turn the starter pulley 2 turns clockwise NOTE Check that the starter pulley can be turned at least half a turn when the starter cord is entirely pulled out Changing the broken recoil spring e Lift the starter pulley See Changing a broken or worn starter cord The recoil spring is disassembled from the starter device with its inside facing down Tap the starter lightly against a working bench or similar e Put a new recoil spring in the right position If the spring pops out when assembling it should be mounted again out and in towards the centre Lubricate the recoil spring with thin oil Assemble the starter pulley and tension the recoil spring Starter device assembly e Assemble the starter device by pulling the starter cord out first then place the starter against the crankcase Then slowly release the starter cord so that the pulley engages with the pawls e Assemble and tighten the screws which hold the starter MAINTENANCE Air filter The air
31. filter must be regularly cleaned from dust and dirt in order to avoid e Carburettor malfunctions e Starting problems e Engine power reduction e Unnecessary wear on the engine parts e Abnormal fuel consumption Clean the air filter daily or more often if the air is exceptionally dusty in the working area Disassemble the air filter by removing the cylinder cover and unscrew the filter When reassembling make sure that the filter is tight against the filter holder Clean the filter by brushing or shaking it A more thorough cleaning of the filter is obtained by washing it in water and soap An air filter which is used for some time cannot be cleaned completely Therefore it must be replaced by a new one with regular intervals IMPORTANT A damaged air filter must always be replaced Spark plug The spark plug condition is influenced by e An incorrect carburettor setting e Wrong fuel mixture too much oil in the gasoline e A dirty air filter These factors cause deposits on the spark plug electrodes which may result in malfunction and starting difficulties If the engine is low on power difficult to start or runs poorly at idling speed always check the spark plug first If the spark plug is dirty clean it and check the electrode gap Readjust if necessary The correct gap is 0 5 mm 020 The spark plug should be replaced after about a month in operation or earlier if the electrodes are badly eroded
32. he L jet then the idling screw T and then the H jet The following engine speed applies Max overspeed Idling speed 12 500 rpm 2 500 rpm Conditions e Before any adjustments are made the air filter should be clean and the cylinder cowling fitted Adjusting the carburettor while a dirty air filter is in use will result in a leaner mixture when the filter is finally cleaned This can give rise to serious engine damage Carefully turn the L and H jets clockwise to the bottom Now turn the jets one turn anti clockwise The carburettor is now set to H 1 andL 1 e Now start the saw according to the starting instructions and run it warm for 10 minutes NOTE If the chain rotates the T screw should be turnedanti clockwise until the chain stops e Place the saw on a flat surface so that the bar points away from you and so that the bar and chain do not come into contact with the surface or other objects Low speed needle L Try to find the highest idling speed turning the low speed needle L clockwise respectively counter clockwise When the highest speed has been found turn the low speed needle L 1 4 turn counter clockwise NOTE If the chain rotates in the idling position turn the idling speed screw counter clockwise until the chain stops Final setting of the idling speed T Adjust the idling speed with the screw T If it is necessary to re adjust first turn the idle speed adjusting screw T clockwise until the chain s
33. idle after every cut running the engine for too long at full throttle without any load can lead to serious engine damage Cutting from above Cuiting on the pull stroke e Cutting from below Cutting on the push stroke See the section on How to avoid kickback to find out why cutting on the push stroke increases the risk of kickback Terms Cutting General term for cutting through wood Limbing Cutting limbs 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 bar will not jam in the cut 2 Make sure the log will not split 3 Make sure the chain will not strike the ground or any other object during or after cutting 4 ls there a risk of kick back 5 Do the conditions and Surrounding terrain affect your safety when working 20 English Two factors decide whether the chain will jam or the log will split The first is how the log is supported 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 of the log You need to support the log so that it will not trap the chain or split during cutting If the chain jams in the cut STOP THE ENGINE Don t try to pull the saw free If you do you may damage the chain when the saw suddenly breaks free Use a lever
34. ke by pulling the hand guard towards the front handle CAUTION Do not release the starter handle from fully pulled out position as this can cause damage on the saw IGNITION Move the ignition switch to startposition CHOKE Set the choke control in choke position FAST IDLE Combined choke fast idle is received when the choke is moved to choke position Stop The engine is stopped by switching off the ignition Move the ignition switch to stopposition Warm engine Use the same procedure as for starting cold engine but without choke Fast idle is recived by first set the choke control in choke position and then back again eel 28 English MAINTENANCE Carburettor Functioning Basic setting Final setting WARNING Do not start the saw without the bar chain and clutch cover chain brake assembled If you do the clutch might come loose and cause severe injuries Operation The carburettor governs the engine speed via the throttle Air fuel are mixed in the carburettor The air fuel mixture is adjustable To take advantage of the saw s maximum output the setting must be correct Adjusting the carburettor means the engine is adapted to local operating conditions e g climate altitude petrol and the type of 2 stroke oil used The carburettor has three adjustment possibilities L Low speed jet H High speed jet T Adjustment screw for
35. nch nearby tree or some other object Never use the saw above shoulder height and try not to cut with the tip of the bar Never use the saw one handed 5 Always use a fast cutting speed i e full throttle 6 Take great care when you cut with the top edge of the bar i e when cutting from the underside of the object This is Known as cutting on the push stroke The chain tries to push the saw back towards the user Unless the user resists this pushing force there is a risk that the saw will move so far backwards that only the kickback zone of the bar is in contact with the tree This will cause kickback Cutting with the bottom edge of the bar i e from the top of the object downwards is known as cutting on the pull stroke In this case the saw pulls itself towards the tree and the front edge of the saw provides a natural rest when cutting Cutting on the pull stroke gives you better control over the saw and the position of the kickback zone Follow the 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 the sections on Cutting equipment and Technical data The risk of kickback is increased if you use the wrong cutting equipment or a chain that is not sharpened correctly The wrong combination of bar and chain can increase the risk of kickback English 17 SAFET
36. nd make operation easier When you use a Chain saw vibrations are generated by the uneven contact between the chain and the wood you are cutting Cutting hardwoods most broadleaf trees creates more vibration than cutting softwoods most conifers Cutting with a chain that is blunt or faulty wrong type or badly sharpened see section D will increase the vibration level The vibration damping system reduces the vibrations transmitted from the engine and chain to the handles of the chain saw The body of the saw including the cutting equipment is insulated from the handles by vibration damping units 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 These 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 6 Stop switch Use the stop switch to switch off the engine 7 Muffler The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user The exhaust fumes from the engine are hot and may contain sparks which can start a fire Never start the saw indoors or near combustible material In countries with a hot climate there is a high risk of forest fires Our chain saws are
37. ng Always move the saw from the fuelling area before starting Clean around the fuel cap Clean the fuel and chain oil tanks regularly The fuel filter should be changed at least once a year Contamination in the fuel tanks causes malfunction Make sure the fuel is well mixed by shaking the container before fuelling The volume of chain oil and fuel tanks are adjusted to each other Therefore always fill chain oil and fuel at the same time 10ft English 2 START AND STOP Start and stop Start Grip the front handle with your WARNING left hand and hold the saw down by putting your right foot in the rear handle Pull the starter handle with your right hand and pull out the starter cord slowly until the starter pawls engage Then pull sharply e Never start the saw engine without the bar chain and clutch cover chain brake assembled or else the clutch can come loose and cause personal injuries Always move the saw away from the fueling area before starting Place the saw on clear ground and make sure that the chain is not contacting anything Also make sure that you have a secure footing Keep people and animals well away from the working area Push in the choke control immediately when the engine ignites and make repeated starting attemps When the engine starts rapidly give full throttle Then the throttle latch will disengage Cold engine CHAIN BRAKE Disengage the chain bra
38. nnnnnnennennnnnne 31 Cooling System a scsceccecscececsaextarneceien cnvdectesensabcubediwtedesustansedax 32 Centrifugal cleaning Air Injection ccccceeeeeeeeeeeeeeeees 32 Daily maintenance wcscccscccascssdetensccesbevcuscxestewesnstiudesdeecet adetes 32 Weekly maintenance cccccseseeeccesseeeceenseecceeseeeesaeees 33 Monthly maintenance cccccseeececeeeeeeeceeeeeeceeeneeseesaees 33 Technical data A aea S E E A asians E E 34 EO r E E E A eee eee 34 English 3 SAFETY INSTRUCTIONS PERSONAL PROTECTIVE EQUIPMENT MOST CHAIN SAW ACCIDENTS HAPPEN WHEN THE CHAIN TOUCHES THE OPERA TOR You must wear approved protective equipment whenever you use a chain saw Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen Ask your chain saw dealer for help in choosing the right equipment Long or continuous exposure to high noise levels may cause permanent hearing impairment Always wear approved hearing protection when operating a chain saw PROTECTIVE HELMET HEARING PROTECTION PROTECTIVE GLASSES OR VISOR e GLOVES WITH SAW PROTECTION e PROTECTIVE TROUSERS WITH SAW PROTECTION e BOOTS WITH SAW PROTECTION STEEL TOE CAP AND NON SLIP SOLE Generally clothes should be close fitting without restricting your freedom of movement e ALWAYS HAVE A FIRST AID KIT NEARBY 4 English CHAIN S
39. oled engines Contact your dealer when selecting an oil Mixing ratio 1 33 8 1 25 4 e Never use two stroke oil intended for water cooled outboard Chain oil motors so called outboard oil e The chain lubrication system is automatic Always e Never use oil intended for four stroke engines use special chain oil with good adhesive characteristics e In countries where no special chain oil is available EP 90 transmission oil can Oil Ol be used Huile e Aceite Never use waste oil This Lit results in damage to the oil 2 1 50 3 1 33 4 1 25 pump the bar and the 0 10 0 15 0 20 chain 0 20 0 30 0 40 0 30 0 49 0 60 the right viscosity according 0 40 0 60 0 80 to the air temperature It is important to use oil of US fl oz e In temperatures below 0 C 32 F some oils become 2 1 50 3 1 Oo 4 1 25 a Eea This can 2 1 2 3 3 4 5 1 8 overload the oil pump and 6 1 2 9 3 4 12 7 8 result in damage to the oil 12 7 8 191 4 25 3 4 pump components e Contact your servicing dealer when choosing chain oil 26 English FUEL HANDLING Fuelling Taking the following precautions will lessen the risk of fire Do not smoke or place warm objects in the vicinity of the fuel Always shut off the engine before refuelling Slowly open the fuel cap when filling fuel so that possible overpressure is slowly released Tighten the fuel cap carefully after fuelli
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41. ove these with a file if necessary e Whether the groove in the bar has become badly worn Replace the bar if necessary e Whether the tip of the bar is uneven or badly worn If a hollow forms on one side of the bar tip this is due to a slack chain To prolong the life of the bar you should turn it over daily MOST CHAIN SAW ACCIDENTS HAPPEN WHEN THE CHAIN TOUCHES THE OPERA TOR WEAR PERSONAL PROTECTIVE EQUIPMENT see the section on Chain saw safety equipment DO NOT TACKLE ANY JOB YOU ARE UNSURE OF see the section on Personal protective equipment How to avoid kickback General working instructions and Cutting equipment AVOID SITUATIONS WHERE THERE IS A RISK OF KICKBACK see the section on Personal protective equipment USE THE RECOMMENDED PROTECTIVE EQUIPMENT AND CHECK ITS CONDITION see section on General working instructions CHECK THAT ALL SAFETY FUNCTIONS ARE WORKING see section on General working instructions and General safety precautions 1 6 English HOW TO AVOID KICKBACK Kickback can happen very suddenly and violently kicking the 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 What is kickback The word kickback is
42. rum 2 The front hand guard is not designed solely to activate the chain brake Another important safety feature is that it prevents the chain from hitting your left hand if you lose your grip on the front handle 3 You can also use the chain brake as a temporary brake when you change position or if you put the saw down for a short time You should also apply the chain brake manually if there is a risk of the chain accidentally hitting anyone or anything close by 4 To release the chain brake pull the front hand guard backwards towards the front handle 5 As mentioned in section A 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 SAFETY INSTRUCTIONS 6 The way the chain brake is triggered either manually or automatically depends on the force of the kickback and the position of the chain saw in relation to the object that the kickback zone of the bar strikes If you get a violent kickback while the kickback zone of the bar is farthest away from you the chain brake will be activated by the movement of the counterweight INERTIA ACTIVATED 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 7 During felling your left hand grasps the front handle in such a w
43. side of the tree and cut with the bottom edge of the bar Make the FELLING CUT about 3 5 cm 1 5 2 inches above the flat section of the DIRECTIONAL CUT Set the spike bumper in behind the breaking strip if one is fitted Use full throttle and bring the bar and chain slowly into the tree Make sure the tree does not start to move in the opposite direction to your intended felling direction Drive a WEDGE or BREAKING BAR into the cut as soon as it is deep enough Finish the FELLING CUT parallel with the DIRECTIONAL CUT LINE so that the distance between them is at least at least 1 10 of the trunk diameter The uncut section of the trunk is called the BREAKING STRIP The BREAKING STRIP act as hinges that control the felling direction of the falling tree All control over the felling direction is lost if the BREA KING STRIP is too narrow or if the directional cut and felling cut are badly placed When the felling cut and directional cut are complete the tree should start to fall under its own weight or with the aid of a FELLING WEDGE or BREAKING BAR SAFETY INSTRUCTIONS We recommend that you use a bar that is longer than the diameter of the tree so that you can make the FELLING CUT and DIRECTIONAL CUT with single cutting stokes See Technical data to find out which lengths of bar are recommended for your saw There are methods for felling trees with a diameter larger than th
44. t hand Make sure the chain saw is steady and the chain is not touching the ground Then grasp the starter handle with your right hand and pull the starter cord 1 8 English 7 FUEL SAFETY Refuelling fuel mixture storage Fuel and fuel vapour are highly inflammable Take care when handling fuel and chain oil Keep away from naked flames and do not breathe in fuel vapour Never try to refuel the saw while it is running e Make sure there is plenty of ventilation when refuelling or mixing fuel 2 stroke mixture e Move the saw at least 3 m from the refuelling point before starting it Never start the chainsaw a Ifyou have spilt fuel or chain oil on the saw Wipe off the spill and allow remaining fuel to evaporate b Ifyou spill fuel or chain oil on yourself or your clothes Change your clothes c If there is a fuel leak Check regularly for leaks from the FUEL CAP and FUEL LINES aot g e Always store the chain saw and fuel away from any sources of sparks or naked flames e g machines electric motors relays switches boilers etc e Always store fuel in an approved container designed for that purpose e For longer periods of storage or for transport of the 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 8 Never use any accessories other than those recommended in this manual See th
45. tarts to rotate Then turn counter clockwise until the chain stops A correctly adjusted idle speed setting occurs when the engine runs smoothly in every position It should also be good margin to the rom when the chain starts to rotate Contact your servicing dealer if the idle speed setting cannot be adjusted so that the chain stops Do not use the saw until it has been properly adjusted or repaired Del High speed needle H The high speed needle H influences the power of the saw A too lean adjusted high speed needle H high speed needle H closed too much P gives overrevs and damages the engine Let the saw run at full speed for about 10 seconds Thereafter turn the high speed needle H 1 4 turn counter clockwise Let the saw run again at full speed for about 10 seconds and note the difference of the enginesound Repeat this procedure with the high speed needle H turned 1 4 turn more counter clockwise The saw has now been tested with the following settings H 0 H 1 4 H 1 2 from basic adjustment At full soeed the engine has produced a different sound for each setting The high speed needle H is correctly set when the saw 4 cycles a little If the saw whistles the setting is too lean If there is too much exhaust gas at the same time as the saw 4 cycles much the setting is too rich Turn the high speed needle H until the setting sounds correct NOTE For optimum setting of the carburettor conta
46. the lubricating hole in the tip is not blocked Clean and lubricate if necessary If the chain lubrication system is still not working after carrying out the above measures you should contact your service agent D Lubricating the bar tip sprocket e Lubricate the bar tip sprocket each time you refuel Use the special grease gun and a good quality bearing grease E Lubricating the clutch drum bearing ae Pe e Between the engine drive shaft and the clutch drum is a needle bearing that must be lubricated daily Use the specially designed grease gun and a good quality bearing grease F Checking wear on cutting equipment Saw chain Check the saw chain daily for e Visible cracks in rivets and links Whether the chain is stiff Whether rivets and links are badly worn We recommend you compare the existing chain with a new chain to decide how badly it is worn When the length of the cutting teeth has worn down to only 4 mm the chain must be replaced G Chain drive sprocket The clutch drum is fitted with one of the following drive sprockets A SPUR integral drive sprocket B RING 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 English 15 SAFETY INSTRUCTIONS H Bar Check regularly e Whether there are burrs on the edges of the bar Rem
47. to open up the cut and free the bar The following instructions describe how to handle most types of situation that you will be faced with when using a chain saw Cutting 1 The log is lying on the ground There is little risk of the chain jamming or the log splitting However there is a risk that the chain will touch the ground when you finish the cut Cut all the way through the log from above Try not to touch the ground as you finish the cut Maintain full throttle but be prepared in case the chain snatches A If itis possible to turn the log you should stop cutting about 2 3 of the way through B Turn the log and finish the cut from the opposite side 2 The log is supported at one end There is a high risk that it will split A Start by cutting from below about 1 3 of the way through B Finish by cutting from above so that the two cuts meet 3 The log is supported at both ends There is a high risk that the chain will jam A Start by cutting from above about 1 3 of the way through B Finish by cutting from below so that the two cuts meet Limbing When limbing thick branches you should use the same approach as for cutting Cut difficult branches piece by piece SAFETY INSTRUCTIONS 3 Tree felling technique It takes a lot of experience to fell a tree Inexperienced users of chain saws should not fell trees NEVER ATTEMPT A TASK YOU ARE UNSURE OF
48. used to describe the sudden reaction that happens when the upper quadrant of the tip of the bar known as the kickback zone touches an object and the saw is kicked backwards Kickback always occurs in the cutting plane of the saw Normally the saw and bar are thrown backwards and upwards towards the user However the saw may move in a different direction depending on the way it was being used when the kickback zone of the bar touched the object Kickback only occurs if the kickback zone of the bar touches an object SAFETY INSTRUCTIONS General rules 1 If you understand what kickback is and how it happens then you can reduce or eliminate the element of surprise By being prepared you reduce the risk Kickback is usually quite mild but it can sometimes be very sudden and violent Always hold the saw firmly with your right hand on the rear handle and your left hand on the front handle Wrap your fingers and thumb around the hand les 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 saw under control Do not let go of the handles 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 bra
49. wear carburettor Change if necessary fuel tank with gasoline tank with gasoline connections English 30 TECHNICAL DATA 40 45 40 45 Engine Noise levels Cylinder volume cu in cm 2 43 40 2 67 44 Equivalent see note 1 noise Cylinder bore inch mm 1 57 40 1 65 42 pressure level at operator s Stroke inch mm 1 26 32 1 26 32 ear measured according to Idle speed rom 2 500 2 500 relevant international Recommended max standards dB A 100 100 speed unloaded rom 12 500 12 500 Equivalent see note noise Power kW 2 0 9 000 2 2 9 000 power level measured according to relevant interna Ignition system tional standards dB A 107 107 Manufacture Phelon Phelon Type of ignition system ET ET Vibration levels Spark plug Champion Champion See note 2 RCJ 7Y RCJ 7Y Front handle m s 1 9 1 9 Electrode gap inch mm 0 02 0 5 0 02 0 5 Rear handle m s 4 2 4 2 Fuel and lubrication Chain bar system Standard bar length Manufacturer Zama Zama inches cm 13 33 13 33 Carburettor type C1Q C1Q Recommended bar lengths Fuel capacity US pint litre 1 06 0 5 1 06 0 5 inches cm 13 33 18 46 13 33 18 46 Oil pump capacity at 8500 rpm Usable cutting length ml min 8 8 inches cm 12 6 17 5 12 6 17 5 Oil capacity US pint litre 0 53 0 25 0 53 0 25 32 44 5 32 44 5 Type of oil pump Automatic Automatic Chain speed at max power m sec 17 4 17 4 Weight a Without bar and chain Lbs kg 10 3 4 7 10 3 4 7 Pitch inches 0 325 0 325
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