Operator′s manual T435 Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
KEY TO SYMBOLS Symbols on the machine: WARNING! Chain saws can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. 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 Front hand guard 16 Throttle control 2 Information and warning decal 17 Stop switch 3 Top handle 18 Bar 4 Adjuster screws carburettor 19 Chain 5 Filter cover 20 Bar tip sprocket 6 Fuel tank 21 Fixing eye for safety line 7 Spark plug cap 22 Clutch cover 8 Starter 23 Product and serial number plate 9 Starter handle 24 Chain tensioning screw 10 Front handle 25 Chain catcher 11 Chain oil tank 26 Spike bumper 12 Oil pump adjustment sc
GENERAL SAFETY PRECAUTIONS Before using a new chain saw • Please read this manual carefully. • Check that the cutting equipment is correctly fitted and adjusted. See instructions under the heading Assembly. • Refuel and start the chain saw. See the instructions under the headings Fuel Handling and Starting and Stopping. • Do not use the chain saw until sufficient chain oil has reached the chain. See instructions under the heading Lubricating cutting equipment.
GENERAL SAFETY PRECAUTIONS provide information about which training materials and courses are available. • Fire Extinguisher and Shovel Generally clothes should be close-fitting without restricting your freedom of movement. Work is constantly in progress to improve the design and technology - improvements that increase your safety and efficiency. Visit your dealer regularly to see whether you can benefit from new features that have been introduced.
GENERAL SAFETY PRECAUTIONS Chain brake and front hand guard • The chain brake must be engaged when the chain saw is started to prevent the saw chain from rotating. • Use the chain brake as a ”parking brake” when starting and when moving over short distances, to reduce the risk of moving chain accidentally hitting your leg or anyone or anything close by. • To release the chain brake pull the front hand guard backwards, towards the front handle. • Kickback can be very sudden and violent.
GENERAL SAFETY PRECAUTIONS designed to be activated by the inertia in the kickback direction. 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. 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.
GENERAL SAFETY PRECAUTIONS Vibration damping system Muffler Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier. The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user. In areas with a hot, dry climate there is a high risk of fires. ! The machine′s vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machine′s handle unit.
GENERAL SAFETY PRECAUTIONS • • Keep the chain properly tensioned! If the chain is slack it is more likely to jump off and lead to increased wear on the bar, chain and drive sprocket. • Number of teeth on bar tip sprocket (T). • 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.
GENERAL SAFETY PRECAUTIONS Sharpening your chain and adjusting depth gauge setting gauge. This will help you obtain the maximum kickback reduction and cutting performance from your chain. General information on sharpening cutting teeth • 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 chips will be very small. If the chain is very blunt it will produce wood powder and no chips or shavings.
GENERAL SAFETY PRECAUTIONS General advice on adjusting depth gauge setting • Tensioning the chain When you sharpen the cutting tooth (A) the depth gauge setting (C) will decrease. To maintain optimal cutting performance the depth gauge (B) has to be filed down to achieve the recommended depth gauge setting. See instructions under the heading Technical data to find the correct depth gauge setting for your particular chain. ! WARNING! A slack chain may jump off and cause serious or even fatal injury.
GENERAL SAFETY PRECAUTIONS Lubricating cutting equipment Checking chain lubrication • ! WARNING! Poor lubrication of cutting equipment may cause the chain to snap, which could lead to serious, even fatal injuries. 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.
GENERAL SAFETY PRECAUTIONS Chain drive sprocket • 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 the bar you should turn it over daily. The clutch drum is fitted with a Spur sprocket (the chain sprocket is welded on the drum). Regularly check the degree of wear on the drive sprocket. Replace if wear is excessive. Replace the drive sprocket whenever you replace the chain.
ASSEMBLY Fitting the bar and chain ! correctly located in the groove in the bar. Tighten the bar nuts finger tight. WARNING! Always wear gloves, when working with the chain. Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle. Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain should be tensioned until it does not sag from the underside of the bar.
FUEL HANDLING Fuel 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. ! • Use good quality unleaded or leaded petrol.
FUEL HANDLING Fuelling ! • Move the machine at least 3 m from the refuelling point before starting it. • Never start the machine: 1 If you have spilt fuel or chain oil on the machine. Wipe off the spillage and allow remaining fuel to evaporate. When refuelling, open the fuel cap slowly so that any excess pressure is released gently. 2 If you have spilt fuel on yourself or your clothes, change your clothes. Wash any part of your body that has come in contact with fuel. Use soap and water.
STARTING AND STOPPING Starting and stopping ! Choke: Set the choke control in the choke position. WARNING! Note the following before starting: The chain brake must be engaged when the chain saw is started to reduce the chance of contact with the moving chain during starting. Never start a chain saw unless the bar, chain and all covers are fitted correctly. Otherwise the clutch can come loose and cause personal injuries. Warm engine Place the machine on firm ground.
STARTING AND STOPPING the engine starts, quickly apply full throttle; the throttle start lock will automatically disengage. • 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 hands. The right hand should be on the top handle, and the left hand on the front handle. All people, whether right or left handed, should use this grip.
WORKING TECHNIQUES Before use: 1 Basic safety rules 3 2 4 6 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. 8 1 Check that the chain brake works correctly and is not damaged. 2 Check that the throttle lockout works correctly and is not damaged. 3 Check that the stop switch works correctly and is not damaged.
WORKING TECHNIQUES handle. Wrap your fingers and thumbs around the handles. 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 chain saw under control. suddenly. Take great care when working on sloping ground. 3 7 Take great care when cutting a tree that is in tension. A tree that is in tension may spring back to its normal position before or after being cut.
WORKING TECHNIQUES 6 If you have to cut branches or the like that are above shoulder height, a working platform or scaffold tower is recommended. Working with tree service chain-saws from a rope and harness This chapter sets out working practices to reduce the risk of injury from tree service chainsaws when working at height from a rope and harness. While it may form the basis of guidance and training literature, it should not be regarded as a substitute for formal training.
WORKING TECHNIQUES work position witch allows them to hold both handles of the saw. This results in an increased risk of injury due to: Freeing a trapped saw If the saw should become trapped during cutting, operators should: • not having a firm grip on the saw if it kicks back. • a lack of control of the saw such that it is more liable to contact climbing lines and operators body (particularly the left hand and arm) • switch off the saw and attach it securely to the tree inboard (i.e.
WORKING TECHNIQUES 3 Make sure the chain will not strike the ground or any other object during or after cutting. 4 Is there a risk of kickback? - 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.
WORKING TECHNIQUES Limbing • Arrangement of branches When limbing thick branches you should use the same approach as for cutting. • Weight of snow Cut difficult branches piece by piece. Felling technique for tree tops ! WARNING! It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees.
WORKING TECHNIQUES The directional cuts should run 1/4 of the diameter through the trunk and the angle between the top cut and bottom cut should be 45°. The felling hinge controls the direction that the tree falls in. All control over the felling direction is lost if the felling hinge is too narrow or non-existent, or if the directional cuts and felling cut are badly placed. The line where the two cuts meet is called the directional cut line.
WORKING TECHNIQUES General advice: Cutting the trunk into logs Position yourself so that you will be clear of the tree or branch when the tension is released. See instructions under the heading Basic cutting technique. Make one or more cuts at or near the point of maximum tension. Make as many cuts of sufficient depth as necessary to reduce the tension and make the tree or branch break at the point of maximum tension.
MAINTENANCE General higher idle speed; turning it anti-clockwise gives a lower idle speed. The user must only carry out the maintenance and service work described in this manual. IMPORTANT! Any maintenance other than that described in this manual must be carried out by your servicing dealer (retailer). Carburettor adjustment Due to existing environmental and emissions legislation your chain saw is equipped with movement limiters on the carburettor adjuster screws.
MAINTENANCE High speed jet H Checking the front hand guard At the factory the engine is adjusted at sea level. When working at a high altitude or in different weather conditions, temperatures and atmospheric humidity, it may be necessary to make minor adjustments to the high speed jet. Make sure the front hand guard is not damaged and that there are no visible defects such as cracks. CAUTION! If the high speed jet is screwed in too far, it may damage the piston/cylinder.
MAINTENANCE Throttle lockout Vibration damping system • Make sure the throttle control is locked at the idle setting when the throttle lockout is released. Regularly check the vibration damping units for cracks or deformation. • Press the throttle lockout and make sure it returns to its original position when you release it. Make sure the vibration damping units are securely attached to the engine unit and handle unit.
MAINTENANCE Regularly check that the muffler is securely attached to the machine. mesh will cause the engine to overheat and may lead to serious damage. Note! The mesh must be replaced if it is damaged. If the mesh is blocked the machine will overheat and this will cause damage to the cylinder and piston. Never use a machine with a muffler that is in poor condition. Never use a muffler if the spark arrestor mesh is missing or defective. Starter ! Loosen the screws (1 and 2).
MAINTENANCE • Undo the screw in the centre of the pulley and remove the pulley. Insert and fasten a new starter cord to the pulley. Wind approx. 3 turns of the starter cord onto the pulley. Connect the pulley to the recoil spring so that the end of the spring engages in the pulley. Fit the screw in the centre of the pulley. 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.
MAINTENANCE Air filter Spark plug The air filter must be regularly cleaned to remove dust and dirt in order to avoid: • Incorrect carburettor adjustment. • Carburettor malfunctions • • Starting problems An incorrect fuel mixture (too much or incorrect type of oil). • Loss of engine power • A dirty air filter. • Unnecessary wear to engine parts. • Excessive fuel consumption. • Remove the air filter after taking off the air filter cover.
MAINTENANCE Adjustment of the oil pump Cooling system The oil pump is adjustable. Adjustments are made by turning the screw with a screwdriver. Turning the screw clockwise will increase the oil flow, turning it anticlockwise will reduce the oil flow. To keep the working temperature as low as possible the machine is equipped with a cooling system. The cooling system consists of: 1 Air intake on the starter. 2 Air guide plate. 3 Fins on the flywheel. 4 Cooling fins on the cylinder.
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.
MAINTENANCE Technical data T435 Engine Cylinder displacement, cm3 35,2 Cylinder bore, mm 40 Stroke, mm 28 Idle speed, rpm 2900 Recommended max.
MAINTENANCE Bar and chain combinations The following cutting attachments are approved for the model Husqvarna T435. Bar Chain Length, inch Pitch, inch Gauge, mm Max. nose radius 12 3/8 0,050 7T 14 3/8 0,050 7T 16 3/8 0,050 7T Type Length, drive links (no.
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Original instructions 1153132-26 ´®z+U-6¶6Y¨ ´®z+U-6¶6Y¨ 2009-10-23