Husqvarna 445 II Operator's Manual
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Husqvarna 445 II Operator's Manual

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Operator's manual
445 II, 445e II
450 II, 450e II
E E E E n n n n g g g g l l l l i i i i s s s s h h h h
Please read the operator's manual carefully and make sure you understand the instructions before using the machine.

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  • Page 1 Operator′s manual 445 II, 445e II 450 II, 450e II E E E E n n n n g g g g l l l l i i i i s s s s h h h h Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
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  • Page 7: Key To Symbols

    KEY TO SYMBOLS Symbols on the machine: Symbols in the operator’s manual: WARNING! Chain saws can be dangerous! Careless or incorrect use Switch off the engine before carrying can result in serious or fatal injury to the out any checks or maintenance. operator or others.

  • Page 8: Table Of Contents

    CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: ........7 Symbols in the operator’s manual: ......7 CONTENTS Contents ............... 8 INTRODUCTION Dear Customer, ............. 9 WHAT IS WHAT? What is what on the chain saw? ......9 GENERAL SAFETY PRECAUTIONS Before using a new chain saw ......

  • Page 9: Introduction

    Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Karl XI ordered the Start reminder construction of a factory on the banks of the Husqvarna Combined start and stop switch River, for production of muskets. The location was logical,...

  • Page 10: General Safety Precautions

    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- • (1) - (117) refer to figures on p. 2-6. loaded stop switch and can be started by low speed and force on the starter •...

  • Page 11: Always Use Common Sense

    GENERAL SAFETY PRECAUTIONS Always use common sense (2) carried out correctly and if service and/or repairs are not carried out professionally. If you need further information It is not possible to cover every conceivable situation you please contact your nearest service workshop. can face when using a chain saw.
  • Page 12 GENERAL SAFETY PRECAUTIONS designed to be activated by the inertia in the kickback control (B). When you release the handle the throttle direction. (7) control and the throttle lockout both move back to their original positions. This arrangement means that the If the kickback is less violent or the kickback zone of throttle control is automatically locked at the idle setting.

  • Page 13: Cutting Equipment

    • Avoid increasing vibration levels. a bar and chain combinations recommended by Husqvarna. See instructions under the heading Technical General rules Data for a list of replacement bar and chain combinations we recommend.
  • Page 14 (26) one side first, then turn the chain saw over and file the teeth on the other side. 445 II, 450 II • File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (5/32") the...
  • Page 15 GENERAL SAFETY PRECAUTIONS • Raise the tip of the bar and stretch the chain by • The saw chain oil tank and the fuel tank are designed tightening the chain tensioning screw using the so that the fuel runs out before the saw chain oil. combination spanner.
  • Page 16 GENERAL SAFETY PRECAUTIONS Checking wear on cutting equipment WARNING! Most chain saw accidents happen when the chain touches the operator. Wear personal protective equipment. See Check the chain daily for: instructions under the ”Personal • Visible cracks in rivets and links. protective equipment”...

  • Page 17: Assembly

    Hold up the bar tip and tighten the bar knob by turning the knob clockwise. (33) 445 II, 450 II • When fitting a new chain, the chain tension has to be •...

  • Page 18: Fuel Handling Fuel

    • If the machine is not used for some time the fuel tank should be emptied and cleaned. Environment fuel HUSQVARNA recommends the use of alkylate fuel, either Chain oil Aspen two-stroke fuel or environmental fuel for four-stroke • We recommend the use of special oil (chain oil) with engines blended with two-stroke oil as set out below.

  • Page 19: Fueling

    FUEL HANDLING Fueling 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.

  • Page 20: Starting And Stopping

    STARTING AND STOPPING Starting and stopping Pull the starter handle, 4: Grip the front handle with your left hand. Hold the chain saw on the ground by placing your right foot through the rear handle. (57) WARNING! Note the following before starting: Pull the starter handle with your right hand and pull out the starter cord slowly until you feel a resistance (as the...

  • Page 21: Working Techniques

    WORKING TECHNIQUES Before use: (61) Take great care when removing small branches and avoid cutting bushes (i.e. cutting many small branches Check that the chain brake works correctly and is not at the same time). Small branches can be grabbed by damaged.
  • Page 22 WORKING TECHNIQUES saw chain and be thrown towards you. Even if this Terms does not need to be a danger, you may be surprised Cutting = General term for cutting through wood. and lose control of the saw. Never saw stacked logs or Limbing = Cutting branches off a felled tree.
  • Page 23 WORKING TECHNIQUES The log is lying on the ground. There is little risk of the the tree has no damaged or dead branches that might chain jamming or the object splitting. However there is a break off and hit you during felling. risk that the chain will touch the ground when you finish The main point to avoid is letting the tree fall onto another the cut.

  • Page 24: How To Avoid Kickback

    WORKING TECHNIQUES Set the spike bumper (if one is fitted) just behind the felling Never cut straight through a tree or branch that is in hinge. Use full throttle and advance the chain/bar slowly tension! into the tree. Make sure the tree does not start to move in If you must cut across tree/limb, make two to three cuts, the opposite direction to your intended felling direction.

  • Page 25: Maintenance

    Carburettor adjustment demands special training. This is especially true of the machine’s safety equipment. If your machine fails any of Your Husqvarna product has been designed and the checks described below we recommend that you manufactured to specifications that reduce harmful take it to your service workshop.

  • Page 26: Muffler

    MAINTENANCE Throttle lockout Muffler Never use a machine that has a faulty muffler. • Make sure the throttle control is locked at the idle setting when the throttle lockout is released. (100) Regularly check that the muffler is securely attached to the machine.

  • Page 27: Air Filter

    • Hook the starter cord in the notch in the pulley and A HUSQVARNA chain saw can be equipped with different turn the starter pulley about 2 turns clockwise. types of air filter according to working conditions, weather, Note! Check that the pulley can be turned at least a season, etc.

  • Page 28: Air Injection" Centrifugal Cleaning

    MAINTENANCE Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder. ”Air Injection” centrifugal cleaning Centrifugal cleaning means the following: All air to the carburettor passes through the starter.

  • Page 29: Maintenance Schedule

    MAINTENANCE Maintenance schedule The following is a list of the maintenance steps that must be performed on the machine. Most of the items are described in the Maintenance section. Daily maintenance Weekly maintenance Monthly maintenance Check the brake band on the chain brake for wear.

  • Page 30: Technical Data

    TECHNICAL DATA Technical data 445 II 445e II 450 II 450e II Engine Cylinder displacement, cm 45,7 45,7 50,2 50,2 Cylinder bore, mm Stroke, mm Idle speed, rpm 2700 2700 2700 2700 Power, kW/ rpm 2,1/9000 2,1/9000 2,4/9000 2,4/9000 Ignition system...

  • Page 31: Guide Bar And Saw Chain Combinations

    TECHNICAL DATA Guide bar and saw chain combinations The following cutting attachments are approved for the models Husqvarna 445 II, 445e II, 450 II and 450e II. Guide bar Saw chain Length, drive links Length, inch Pitch, inch Gauge, mm Max.

  • Page 32: Ec Declaration Of Conformity

    Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain saws for forest service Husqvarna 445 II, 445e II, 450 II and 450e II from 2013’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:...
  • Page 36 Original instructions 1155359-26 ´®z+WC|¶6p¨ ´®z+WC|¶6p¨ 2014-11-20...

This manual is also suitable for:

450 ii450e ii445 epa ii, 445e epa ii, 450e

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