Operator′s manual 435 435e 440e Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. English 115 10 82-26 Rev.
KEY TO SYMBOLS Symbols on the machine: WARNING! Chain saws can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Always wear: • Approved protective helmet • Approved hearing protection • Protective goggles or a visor This product is in accordance with applicable EC directives.
CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: ..................................... Symbols in the operator’s manual: ....................... CONTENTS Contents ............................................................... INTRODUCTION Dear Customer, .................................................... WHAT IS WHAT? What is what on the chain saw? ........................... GENERAL SAFETY PRECAUTIONS Before using a new chain saw .............................. Important ..........................
INTRODUCTION Dear Customer, Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Karl XI ordered the construction of a factory on the banks of the Husqvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant.
WHAT IS WHAT? What is what on the chain saw? 1 Cylinder cover 16 Muffler 2 Air purge 17 Chain 3 Start reminder 18 Bar tip sprocket 4 Combined start and stop switch 19 Bar 5 Rear handle 20 Spike bumper 6 Information and warning decal 21 Chain catcher 7 Fuel tank 22 Chain tensioner wheel 8 Adjuster screws carburettor 23 Clutch cover 9 Starter handle 24 Right hand guard 10 Starter 25 Throttle control 11 Chain oil tank 26 Throttle lockout 12 Product and serial number plate 27 Kno
GENERAL SAFETY PRECAUTIONS Before using a new chain saw • Please read this manual carefully. • Check that the cutting equipment is correctly fitted and adjusted. See instructions under the heading Assembly. • Refuel and start the chain saw. See the instructions under the headings Fuel Handling and Starting and Stopping. • Do not use the chain saw until sufficient chain oil has reached the chain. See instructions under the heading Cutting equipment.
GENERAL SAFETY PRECAUTIONS Always use common sense It is not possible to cover every conceivable situation you can face when using a chain saw. Always exercise care and use your common sense. Avoid all situations which you consider to be beyond your capability. If you still feel uncertain about operating procedures after reading these instructions, you should consult an expert before continuing. Do not hesitate to contact your dealer or us if you have any questions about the use of the chain saw.
GENERAL SAFETY PRECAUTIONS activated for long periods. The chain saw can become very hot. Take care when using your saw and make sure the kickback zone of the bar never touches any object. • The chain brake (A) can either be activated manually (by your left hand) or automatically by the inertia release mechanism. • The brake is applied when the front hand guard (B) is pushed forwards.
GENERAL SAFETY PRECAUTIONS If the kickback is less violent or the kickback zone of the bar is closer to you the chain brake will be activated manually by the movement of your left hand. Will my chain brake always protect me from injury in the event of a kickback? No. First, the chain brake must be in working order to provide the intended protection. Second, it must be activated during the kickback as described above to stop the saw chain.
GENERAL SAFETY PRECAUTIONS Right hand guard Stop switch Apart from protecting your hand if the chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle. Use the stop switch to switch off the engine. Muffler Vibration damping system Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier.
GENERAL SAFETY PRECAUTIONS Cutting equipment This section describes how to choose and maintain your cutting equipment in order to: • Reduce the risk of kickback. • Reduce the risk of the saw chain breaking or jumping off the bar. • Obtain optimal cutting performance. • Extend the life of cutting equipment. • Avoid increasing vibration levels. General rules • Only use cutting equipment recommended by us! See instructions under the heading Technical data.
GENERAL SAFETY PRECAUTIONS • Number of drive links. The number of drive links is determined by the length of the bar, the chain pitch and the number of teeth on the bar tip sprocket. • A sharp chain eats its way through the wood and produces long, thick chips or shavings. • Bar groove width (inches/mm). The groove in the bar must match the width of the chain drive links. • The cutting part of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge (B).
GENERAL SAFETY PRECAUTIONS ! WARNING! Departure from the sharpening instructions considerably increases the risk of kickback. ! WARNING! The risk of kickback is increased if the depth gauge setting is too large! Sharpening cutting teeth Adjustment of depth gauge setting To sharpen cutting teeth you will need a round file and a file gauge. See instructions under the heading Technical data for information on the size of file and gauge that are recommended for the chain fitted to your chain saw.
GENERAL SAFETY PRECAUTIONS Tension the chain as tightly as possible, but not so tight that you cannot pull it round freely by hand. 435e, 440e • Release the knob by folding it out. • Turn the knob anti clockwise to loosen the bar cover. • Adjust the tension on the chain by turning the wheel down (+) for tighter tension and up (-) to loosen the tension. • Tighten the bar clutch by turning the knob clockwise. 435 • • • Loosen the bar nut that holds the clutch cover and chain brake.
GENERAL SAFETY PRECAUTIONS • Fold the knob back in to lock the tensioning. 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 the light surface.
GENERAL SAFETY PRECAUTIONS Chain drive sprocket Bar The clutch drum is fitted with one of the following drive sprockets: Check regularly: • Whether there are burrs on the edges of the bar. Remove these with a file if necessary. A Spur sprocket (the chain sprocket is welded on the drum) B Rim sprocket (replaceable) • 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.
ASSEMBLY Fitting the bar and chain ! The chain is correctly tensioned when there is no slack on the underside of the bar, and it can still be turned easily by hand. Tighten the bar nut with the combination spanner while holding up the tip of the bar. WARNING! Always wear gloves, when working with the chain. 435 Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle.
ASSEMBLY Mount the clutch cover and remember to fit 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. Tension the chain by turning the wheel down (+). The chain should be tensioned until it does not sag from the underside of the bar. The chain is correctly tensioned when it does not sag from the underside of the bar, but can still be turned easily by hand.
FUEL HANDLING Fuel Mixing ratio Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of petrol and twostroke oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture. ! 1:50 (2%) with HUSQVARNA two-stroke oil.
FUEL HANDLING Fuelling ! Fuel safety • • Never refuel the machine while the engine is running. Make sure there is plenty of ventilation when refuelling or mixing fuel (petrol and 2-stroke oil). • Move the machine at least 3 m from the refuelling point before starting it. • 1 Never start the machine: If you have spilt fuel or chain oil on the machine. Wipe off the spillage and allow remaining fuel to evaporate. 2 If you have spilt fuel on yourself or your clothes, change your clothes.
STARTING AND STOPPING Starting and stopping WARNING! Note the following before starting: ! Warm engine When the chain saw is heated restart the saw only by pulling the cord powerfully until the engine starts (5). Never twist the starter cord around your hand. The chain brake must be engaged when the chain saw is started to reduce the chance of contact with the moving chain during starting. Never start a chain saw unless the bar, chain and all covers are fitted correctly.
STARTING AND STOPPING • Never start a chain saw unless the bar, chain and all covers are fitted correctly. See instructions under the heading Assembly. Without a bar and chain attached to the chain saw the clutch can come loose and cause serious injury. • The chain brake should be activated when starting. Se instructions under the heading Start and stop. Do not drop start. This method is very dangerous because you may lose control of the saw. • Never start the machine indoors.
WORKING TECHNIQUES Before use: Basic safety rules 1 Look around you: • To ensure that people, animals or other things cannot affect your control of the machine. • To make sure that none of the above might come within reach of your saw or be injured by falling trees. , 1 Check that the chain brake works correctly and is not damaged. 2 Check that the rear right hand guard is not damaged. 3 Check that the throttle lockout works correctly and is not damaged.
WORKING TECHNIQUES 6 Before moving your chain saw switch off the engine and lock the chain using the chain brake. Carry the chain saw with the bar and chain pointing backwards. Fit a guard to the bar before transporting the chain saw or carrying it for any distance. 7 When you put the chain saw on the ground, lock the saw chain using the chain brake and ensure you have a constant view of the machine. Switch the engine off before leaving your chain saw for any length of time.
WORKING TECHNIQUES the saw chain is jamming, the saw may be pushed back at you. Cutting on the push stroke increases the risk of kickback. See instructions under the heading How to avoid kickback. Terms Cutting = General term for cutting through wood. Limbing = Cutting branches off a felled tree. Splitting = When the object you are cutting breaks off before the cut is complete.
WORKING TECHNIQUES The following instructions describe how to handle the commonest situations you are likely to encounter when using a chain saw. Turn the log and finish the cut from the opposite side. Limbing When limbing thick branches you should use the same approach as for cutting. Cut difficult branches piece by piece. 1 The log is supported at one end. There is a high risk that it will split. 2 3 Start by cutting from below (about 1/3 of the way through).
WORKING TECHNIQUES Felling direction Clearing the trunk and preparing your retreat The aim is to fell the tree in a position where you can limb and cross-cut the log as easily as possible. You want it to fall in a location where you can stand and move about safely. Delimb the stem up to shoulder height. It is safer to work from the top down and to have the tree between you and the saw. Once you have decided which way you want the tree to fall you must judge which way the tree would fall naturally.
WORKING TECHNIQUES Next make the bottom cut so that it finishes exactly at the end of the top cut. trunk diameter. The uncut section of the trunk is called the felling hinge. The felling hinge controls the direction that the tree falls in. The directional cuts should run 1/4 of the diameter through the trunk and the angle between the top cut and bottom cut should be 45°.
WORKING TECHNIQUES Freeing a tree that has fallen badly General advice: Freeing a ”trapped tree” Position yourself so that you will be clear of the tree or branch when the tension is released. It is very dangerous to remove a trapped tree and there is high accident risk. Never try to fell the tree that is trapped. Never work in the risk zone of the hanging trapped tree. Make one or more cuts at or near the point of maximum tension.
WORKING TECHNIQUES How to avoid kickback ! WARNING! Kickback can happen very suddenly and violently; kicking the chain saw, bar and chain back at the user. If this happens when the chain is moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking care and using the right working technique.
MAINTENANCE General The user must only carry out the maintenance and service work described in this Operator’s Manual. More extensive work must be carried out by an authorised service workshop. Carburettor adjustment Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. Checking, maintaining and servicing chain saw safety equipment Note! All service and repair work on the machine demands special training.
MAINTENANCE Checking the inertia brake release Throttle lockout Place the chain saw, with the engine switched off, on a stump or other stable surface. Release the front handle and let the saw fall by its own weight, rotating around the rear handle towards the stump. • 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 release it.
MAINTENANCE Right hand guard Muffler Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. Never use a machine that has a faulty muffler. Vibration damping system Regularly check that the muffler is securely attached to the machine. Regularly check the vibration damping units for cracks or deformation. Make sure the vibration damping units are securely attached to the engine unit and handle unit.
MAINTENANCE Starter ! through the hole in the starter housing and the starter handle. Tie a good knot on the starter cord. WARNING! When the recoil spring is wound up in the starter housing it is under tension and can, if handled carelessly, pop out and cause personal injury. Care must be exercised when replacing the return spring or the starter cord. Wear protective glasses and protective gloves.
MAINTENANCE Replacing the return and drive springs Air filter Recoil spring (A) The air filter must be regularly cleaned to remove dust and dirt in order to avoid: • • • Lift up the starter pulley. See instructions under the heading Changing a broken or worn starter cord. Remember that the recoil spring is coiled under tension in the starter housing. Remove the cassette with the recoil spring from the starter. Lubricate the recoil spring with light oil.
MAINTENANCE Spark plug Needle bearing lubrication The spark plug condition is influenced by: The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly. • Incorrect carburettor adjustment. • An incorrect fuel mixture (too much or incorrect type of oil). • A dirty air filter. These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.
MAINTENANCE ”Air Injection” centrifugal cleaning Centrifugal cleaning means the following: All air to the carburettor passes through the starter. Dirt and dust is centrifuged out by the cooling fan. CAUTION! If the 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.
MAINTENANCE Maintenance schedule The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the Maintenance section. Daily maintenance Weekly maintenance Monthly maintenance Clean the outside of the machine. On chain saws without a catalytic converter, check the cooling system weekly. Check the brake band on the chain brake for wear. Replace when less than 0.6 mm (0,024 inch) remains at the most worn point.
TECHNICAL DATA Technical data 435 435e 440e Cylinder displacement, cm3 40,9 40,9 40,9 Cylinder bore, mm 41 41 41 Stroke, mm 31 31 31 Idle speed, rpm 2900 2900 2900 Power, kW/ rpm 1,6/9000 1,6/9000 1,8/9000 Manufacturer of ignition system Walbro Walbro Walbro Type of ignition system MBU-33 MBU-33 MBU-33 Spark plug NGK BPMR 7A/ Champion RCJ 7Y/ Husqvarna PR 17Y NGK BPMR 7A/ Champion RCJ 7Y/ Husqvarna PR 17Y NGK BPMR 7A/ Champion RCJ 7Y/ Husqvarna PR 17Y Electrode gap, mm 0,
TECHNICAL DATA Bar and chain combinations The following combinations are CE approved. Bar Length, inch Pitch, inch Gauge, mm Chain Max. nose radius 13 0,325 10T 15 0,325 10T 16 0,325 18 0,325 1,3 10T 10T Type Length, drive links (no.) 56 Husqvarna H30 64 66 72 Saw chain filing and file gauges 40 – English 115 10 82-26 Rev.
TECHNICAL DATA EC-declaration of conformity (Applies to Europe only) Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain saws Husqvarna 435, 435e and 440e from 2008’s serial numbers and onwards (the year is clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the requirements of the COUNCIL’S DIRECTIVES: - of June 22, 1998 ”relating to machinery” 98/37/EC, annex IIA.
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