Page 2 - KEY TO SYMBOLS; Symbols on the machine:; The engine exhaust from this product
KEY TO SYMBOLS 2 – English 115 13 81-95 Rev.3 2008-12-15 Symbols on the machine: WARNING! Chain saws can be 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 understand the instructions b...
Page 3 - CONTENTS; Contents
CONTENTS English – 3 115 13 81-95 Rev.3 2008-12-15 Contents KEY TO SYMBOLS Symbols on the machine: ..................................... 2 Symbols in the operator’s manual: ....................... 2 CONTENTS Contents ............................................................... 3 INTRODUCTION Dear...
Page 4 - INTRODUCTION
4 – English INTRODUCTION 115 13 81-95 Rev.3 2008-12-15 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 pro...
Page 6 - GENERAL SAFETY PRECAUTIONS; Before using a new chain saw; Important
GENERAL SAFETY PRECAUTIONS 6 – English 115 13 81-95 Rev.3 2008-12-15 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 instructi...
Page 7 - Always use common sense; Chain brake and front hand guard
GENERAL SAFETY PRECAUTIONS English – 7 115 13 81-95 Rev.3 2008-12-15 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 capabili...
Page 9 - Throttle lockout
GENERAL SAFETY PRECAUTIONS English – 9 115 13 81-95 Rev.3 2008-12-15 of the front hand guard, the chain brake can only be activated by the inertia action. Will my hand always activate the chain brake during a kickback? No. It takes a certain force to move the hand guard forward. If your hand only li...
Page 10 - Vibration damping system; Cutting equipment
GENERAL SAFETY PRECAUTIONS 10 – English 115 13 81-95 Rev.3 2008-12-15 Vibration damping system Your machine is equipped with a vibration damping system that is designed to reduce vibration and make operation easier. The machine ′ s vibration damping system reduces the transfer of vibration between t...
Page 11 - General rules
GENERAL SAFETY PRECAUTIONS English – 11 115 13 81-95 Rev.3 2008-12-15 General rules • Only use cutting equipment recommended by us! See instructions under the heading Technical data. • Keep the chain’s cutting teeth properly sharpened! Follow our instructions and use the recommended file gauge. A da...
Page 13 - Tensioning the chain
GENERAL SAFETY PRECAUTIONS English – 13 115 13 81-95 Rev.3 2008-12-15 Sharpening cutting teeth 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 fitt...
Page 15 - Lubricating cutting equipment
GENERAL SAFETY PRECAUTIONS English – 15 115 13 81-95 Rev.3 2008-12-15 Lubricating cutting equipment Chain oil Chain oil must demonstrate good adhesion to the chain and also maintain its flow characteristics regardless of whether it is warm summer or cold winter weather. As a chain saw manufacturer w...
Page 17 - ASSEMBLY; Fitting the bar and chain
ASSEMBLY English – 17 115 13 81-95 Rev.3 2008-12-15 Fitting the bar and chain 445 Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle. Remove the bar nuts and remove the clutch cover (chain brake). Take off the transportation ring (A). Fit the...
Page 19 - FUEL HANDLING; Fuel; Gasoline; Mixing
FUEL HANDLING English – 19 115 13 81-95 Rev.3 2008-12-15 Fuel Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of gasoline and two-stroke oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtain...
Page 20 - Fueling; Transport and storage
FUEL HANDLING 20 – English 115 13 81-95 Rev.3 2008-12-15 Fueling Clean the area around the fuel cap. Clean the fuel and chain oil tanks regularly. The fuel filter must be replaced at least once a year. Contamination in the tanks causes malfunction. Make sure the fuel is well mixed by shaking the con...
Page 21 - STARTING AND STOPPING; Starting and stopping; Starting
STARTING AND STOPPING English – 21 115 13 81-95 Rev.3 2008-12-15 Starting and stopping Starting The chain brake should be activated when starting the chain saw. Activate the chain brake by pushing the front hand guard forwards. Cold engine Start position (1): Set the start/stop switch in the choke p...
Page 22 - Stopping
STARTING AND STOPPING 22 – English 115 13 81-95 Rev.3 2008-12-15 CAUTION! Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended. This can damage the machine. Note! Pull the front hand guard towards the front handle. The chain brake is no...
Page 23 - WORKING TECHNIQUES; General working instructions; Basic safety rules
WORKING TECHNIQUES English – 23 115 13 81-95 Rev.3 2008-12-15 Before use: 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. 4 Check that the stop switch works c...
Page 25 - Basic cutting technique
WORKING TECHNIQUES English – 25 115 13 81-95 Rev.3 2008-12-15 user. If the saw chain is jamming, the saw may be pushed back at you. 8 Unless the user resists this pushing force there is a risk that the chain saw will move so far backwards that only the kickback zone of the bar is in contact with the...
Page 26 - Tree felling technique
WORKING TECHNIQUES 26 – English 115 13 81-95 Rev.3 2008-12-15 Limbing When limbing thick branches you should use the same approach as for cutting. Cut difficult branches piece by piece. Cutting If you have a pile of logs, each log you attempt to cut should be removed from the pile, placed on a saw h...
Page 29 - Freeing a tree that has fallen badly; How to avoid kickback
WORKING TECHNIQUES English – 29 115 13 81-95 Rev.3 2008-12-15 Freeing a tree that has fallen badly Freeing a ”trapped tree” 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 tr...
Page 31 - MAINTENANCE; Function
MAINTENANCE English – 31 115 13 81-95 Rev.3 2008-12-15 General The user must only carry out the maintenance and service work described in this manual. More extensive work must be carried out by an authorised service workshop. Carburetor adjustment Your Husqvarna product has been designed and manufac...
Page 33 - Chain catcher; Muffler
MAINTENANCE English – 33 115 13 81-95 Rev.3 2008-12-15 Chain catcher Check that the chain catcher is not damaged and is firmly attached to the body of the chain saw. Right hand guard Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. Vibration dampi...
Page 34 - Starter; Replacing the starter cord
MAINTENANCE 34 – English 115 13 81-95 Rev.3 2008-12-15 use a muffler if the spark arrestor screen is missing or defective. The muffler is designed 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 ...
Page 35 - Replacing the return and drive springs; Air filter
MAINTENANCE English – 35 115 13 81-95 Rev.3 2008-12-15 Replacing the return and drive springs Recoil spring (A) • 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. • R...
Page 36 - Spark plug
MAINTENANCE 36 – English 115 13 81-95 Rev.3 2008-12-15 Spark plug The spark plug condition is influenced by: • Incorrect carburetor adjustment. • An incorrect fuel mixture (too much or incorrect type of oil). • A dirty air filter. These factors cause deposits on the spark plug electrodes, which may ...
Page 37 - Winter use
MAINTENANCE English – 37 115 13 81-95 Rev.3 2008-12-15 ”Air Injection” centrifugal cleaning Centrifugal cleaning means the following: All air to the carburetor passes through the starter. Dirt and dust is pushed out by the cooling fan. IMPORTANT! In order to maintain operation of the centrifugal cle...
Page 38 - Maintenance schedule
38 – English MAINTENANCE 115 13 81-95 Rev.3 2008-12-15 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 ...
Page 39 - TECHNICAL DATA; Technical data
English – 39 TECHNICAL DATA 115 13 81-95 Rev.3 2008-12-15 Technical data 445 445e 450e 450 Engine Cylinder displacement, cu.in/cm 3 2,79/45,7 2,79/45,7 3,06/50,2 3,06/50,2 Cylinder bore, inch/mm 1,65/42 1,65/42 1,73/44 1,73/44 Stroke, inch/mm 1,30/33 1,30/33 1,30/33 1,30/33 Idle speed, rpm 2700 2700...
Page 40 - Bar and chain combinations
40 – English TECHNICAL DATA 115 13 81-95 Rev.3 2008-12-15 Recommended original and replacement bar and chain combinations Following is a list of recommended cutting equipment for the Husqvarna chain saw models 445, 445e, 450e and 450. The combinations of power head, bar and chain have been tested an...
Page 41 - FEDERAL EMISSION CONTROL WARRANTY STATEMENT
FEDERAL EMISSION CONTROL WARRANTY STATEMENT English – 41 115 13 81-95 Rev.3 2008-12-15 YOUR WARRANTY RIGHTS AND OBLIGATIONS The EPA (The US Environmental Protection Agency), Environment Canada and Husqvarna Forest & Garden are pleased to explain the emissions control system warranty on your 2009...
Page 42 - AMERICAN STANDARD SAFETY PRECAUTIONS; Kickback safety precautions
´®z+SF3¶5M¨ ´®z+SF3¶5M¨ 42 – English AMERICAN STANDARD SAFETY PRECAUTIONS 115 13 81-95 Rev.3 2008-12-15 Safety precautions for chain saw users (ANSI B175.1-2000 Annex C) Kickback safety precautions With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden su...
