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CONTENTS FEDERAL EMISSION CONTROL WARRANTY Contents STATEMENT KEY TO SYMBOLS YOUR WARRANTY RIGHTS AND OBLIGATIONS 41 Symbols on the machine: ..................................... 2 AMERICAN STANDARD SAFETY Symbols in the operator’s manual: ....................... 2 PRECAUTIONS CONTENTS Safety precautions for chain saw users ................ 42 Contents ............................................................... 3 INTRODUCTION Dear customer! ...............
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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 Huskvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the water- powered plant. During over 300 years of continuous operation, the Husqvarna factory has produced a lot o
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WHAT IS WHAT? What is what on the chain saw? 1 Cylinder cover 17 Muffler 2 Decompression valve 18 Chain 3 Air purge 19 Bar tip sprocket 4 Start reminder 20 Bar 5 Combined start and stop switch 21 Bumper spike 6 Rear handle 22 Chain catcher 7 Information and warning decal 23 Chain tensioning screw 8 Fuel tank 24 Clutch cover 9 Adjuster screws carburetor 25 Right hand guard 10 Starter handle 26 Throttle control 11 Starter 27 Throttle lockout 12 Chain oil tank 28 Chain tensioner wheel (445e, 4
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GENERAL SAFETY PRECAUTIONS Before using a new chain saw WARNING! Never allow children to use or be in the vicinity of the machine. As the • Please read this manual carefully. ! machine is equipped with a spring- • Check that the cutting equipment is correctly fitted and loaded stop switch and can be started by adjusted. See instructions under the heading low speed and force on the starter Assembly. handle, even small children under some circumstances can produce the force
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GENERAL SAFETY PRECAUTIONS • Gloves with saw protection Always use common sense • Trousers with saw protection It is not possible to cover every conceivable situation you • Boots with saw protection, steel toe-cap and non-slip can face when using a chain saw. Always exercise care and use your common sense. Avoid all situations which you sole consider to be beyond your capability. If you still feel • Always have a first aid kit nearby. uncertain about operating procedures
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GENERAL SAFETY PRECAUTIONS • The chain brake (A) can either be activated manually • To release the chain brake pull the front hand guard (by your left hand) or automatically by the inertia backwards, towards the front handle. release mechanism. • The brake is applied when the front hand guard (B) is pushed forwards. • Kickback can be very sudden and violent. Most kickbacks are minor and do not always activate the • This movement activates a spring-loaded mechanism chain brake. If this ha
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GENERAL SAFETY PRECAUTIONS of the front hand guard, the chain brake can only be Throttle lockout activated by the inertia action. The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B). When you release the handle the throttle control and the throttle lockout both move back to their original positions. This arrangement means that the thro
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GENERAL SAFETY PRECAUTIONS Vibration damping system Muffler Your machine is equipped with a vibration damping The muffler is designed to keep noise levels to a minimum system that is designed to reduce vibration and make and to direct exhaust fumes away from the user. operation easier. WARNING! The exhaust fumes from the engine are hot and may contain sparks ! which can start a fire. Never start the machine indoors or near combustible material! The machine′s vibration dampi
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GENERAL SAFETY PRECAUTIONS General rules Cutting equipment designed to reduce kickback • Only use cutting equipment recommended by us! See instructions under the heading Technical data. WARNING! Faulty cutting equipment or the wrong combination of bar and saw ! chain increases the risk of kickback! Only use the bar/saw chain combinations we recommend, and follow the filing instructions. See instructions under the • Keep the chain’s cutting teeth properly headin
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GENERAL SAFETY PRECAUTIONS • Number of drive links. The number of drive links is • A sharp chain eats its way through the wood and determined by the length of the bar, the chain pitch produces long, thick chips or shavings. and the number of teeth on the bar tip sprocket. • Bar groove width (inches/mm). The groove in the bar • The cutting part of the chain is called the cutter and must match the width of the chain drive links. consists of a cutting tooth (A) and the depth gauge (B). The cutt
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GENERAL SAFETY PRECAUTIONS Sharpening cutting teeth Adjustment of depth gauge setting To sharpen cutting teeth you will need a round file and a • The cutting teeth should be newly sharpened before file gauge. See instructions under the heading Technical adjusting the depth gauge setting. We recommend data for information on the size of file and gauge that are that you adjust the depth gauge setting every third recommended for the chain fitted to your chain saw. time you sharpen the cutting teeth.
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GENERAL SAFETY PRECAUTIONS 445 • Turn the knob anti clockwise to loosen the bar cover. • Loosen the bar nut that holds the clutch cover and chain brake. Use the combination spanner. Then retighten the bar nut as tightly as you can by hand. • Adjust the tension on the chain by turning the wheel down (+) for tighter tension and up (-) to loosen the tension. • Raise the tip of the bar and stretch the chain by tightening the chain tensioning screw using the combination spanner. Tighten the cha
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GENERAL SAFETY PRECAUTIONS Checking chain lubrication Lubricating cutting equipment • Check the chain lubrication each time you refuel. See WARNING! Poor lubrication of cutting instructions under the heading Lubricating the bar tip equipment may cause the chain to snap, sprocket. ! which could lead to serious, even fatal Aim the tip of the bar at a light coloured surface about injuries. 20 cm (8 inches) away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on th
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GENERAL SAFETY PRECAUTIONS Chain drive sprocket Bar Check regularly: The clutch drum is fitted with one of the following drive sprockets: • 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. Regularly check the degree of wear on the drive sprocket. Replace if wear is excessive. Repl
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ASSEMBLY should be tensioned until it does not sag from the Fitting the bar and chain underside of the bar. WARNING! Always wear gloves, when working with the chain. ! The chain is correctly tensioned when it does not sag from 445 the underside of the bar, but can still be turned easily by hand. Hold up the bar tip and tighten the bar nuts with the Check that the chain brake is in disengaged position by combination spanner. moving the front hand guard towards the front handle. Remove the b
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ASSEMBLY Fit the bar over the bar bolts. Place the bar in its rearmost position. Place the chain over the drive sprocket locate it in the groove on the bar. Begin on the top edge of the bar. Make sure that the edges of the cutting links are facing forward on the top edge of the bar. Fit the clutch cover and locate the chain adjuster pin in the hole in the bar. Check that the drive links of the chain fit correctly over the drive sprocket and that the chain is correctly located in the groove
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FUEL HANDLING Mixing ratio Fuel 1:50 (2%) for all engines. Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of gasoline and Gasoline, litre Two-stroke oil, litre two-stroke oil. It is important to accurately measure the 2% (1:50) amount of oil to be mixed to ensure that the correct 5 0,10 mixture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastically affect the ratio of 10 0,43/0,20 the mixture. 15 0,30 20 0,40 WAR
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FUEL HANDLING • Move the machine at least 10 ft (3 m) from the Fueling refuelling point before starting it. WARNING! Taking the following precautions, will lessen the risk of fire: ! Do not smoke and do not place any hot objects in the vicinity of fuel. Always stop the engine and let it cool for • Never start the machine: a few minutes before refuelling. 1 If you have spilled fuel or chain oil on the machine. Wipe off the spillage and allow remaining fuel to When refuelling, open the fuel c
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Operator’s manual (EPA III)
445 445e 450e
Please read the operator’s manual carefully and make sure you understand the instructions
before using the machine.
E En ng glliis sh h
E En ng glliis sh h
115 13 81-95 Rev.3 2008-12-15
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KEY TO SYMBOLS Symbols on the machine: WARNING! Chain saws can be Regular cleaning is required. dangerous! Careless or improper use can result in serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you Visual check. understand the instructions before using the machine. Always wear: • Approved protective helmet Protective goggles or a visor must be • Approved hearing protection worn. • Protective goggles or a visor Both
