1. Manuals
  2. Brands
  3. Husqvarna Manuals
  4. Chainsaw
  5. 445 EPA II, 445e EPA II, 450e
  6. Operator's manual

Husqvarna 445 EPA II, 445e EPA II, 450e EPA II Operator's Manual

Husqvarna electric chain saw operator's manual
Hide thumbs Also See for 445 EPA II, 445e EPA II, 450e EPA II:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Operator's Manual
Oper ator's manual
445 EP A II 445e EPA II
450e EPA II
Please r ead the operator's manual carefully and make sure you
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
understand the instructions before using the machine.

Advertisement

Table of Contents
loading

Related Manuals for Husqvarna 445 EPA II, 445e EPA II, 450e EPA II

Summary of Contents for Husqvarna 445 EPA II, 445e EPA II, 450e EPA II

  • Page 1 Oper ator’s manual 445 EP A II 445e EPA II 450e EPA II Please r ead the operator’s manual carefully and make sure you 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 understand the instructions before using the machine.

  • Page 2: Key To Symbols

    Symbols on the mac hine: W ARNING! 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 before using the machine.

  • Page 3: Table Of Contents

    CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: ... 2 Symbols in the operator’s manual: ... 2 CONTENTS Contents ... 3 INTR ODUCTION Dear customer! ... 4 WHA T IS WHAT? What is what on the chain sa w? ... 5 GENERAL SAFETY PRECA UTIONS Bef ore using a new chain saw ...

  • Page 4: Intr Oduction

    Dear customer! Cong ratulations 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.

  • Page 5: Wha T Is What

    What is what on the chain saw? 1 Cylinder cover 2 Decompression valve 3 Air purge 4 Start reminder 5 Combined stop switch and choke control 6 Rear handle 7 Information and warning decal 8 Fuel tank 9 Adjuster screws carburetor 10 Starter handle 11 Starter 12 Chain oil tank...

  • Page 6: General Safety Preca Utions

    GENERAL SAFETY PRECA UTIONS Bef ore 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.

  • Page 7: Personal Protective Equipment

    GENERAL SAFETY PRECA UTIONS to be be yond 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.
  • Page 8 GENERAL SAFETY PRECAUTIONS • This movement activates a spring-loaded mechanism that tightens the brake band (C) around the engine drive system (D) (clutch drum). • The front hand guard is not designed solely to activate the chain brake. Another important feature is that it reduces the risk of your left hand hitting the chain if you lose grip of the front handle.

  • Page 9: Chain Catcher

    GENERAL SAFETY PRECAUTIONS 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 lightly touches the front guard or slips over it, the force may not be enough to trigger the chain brake. You should also maintain a firm grip of the chain saw handles while working.

  • Page 10: Cutting Equipment

    GENERAL SAFETY PRECAUTIONS Cutting hardwoods (most broadleaf trees) creates more vibration than cutting softwoods (most conifers). Cutting with cutting equipment that is blunt or faulty (wrong type or badly sharpened) will increase the vibration level. WARNING! Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation.

  • Page 11: Sharpening Your Chain And Adjusting Depth Gauge Setting

    To maintain the safety features of the cutting equipment, you should replace a worn or damaged bar or chain with a bar and chain combinations recommended by Husqvarna. See instructions under the heading Technical Data for a list of replacement bar and chain combinations we recommend.
  • Page 12 GENERAL SAFETY PRECAUTIONS • The cutting part of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge (B). The cutters cutting depth is determined by the difference in height between the two (depth gauge setting). When you sharpen a cutting tooth there are four important factors to remember.

  • Page 13: Tensioning The Chain

    GENERAL SAFETY PRECAUTIONS Adjustment of depth gauge setting • The cutting teeth should be newly sharpened before adjusting the depth gauge setting. We recommend that you adjust the depth gauge setting every third time you sharpen the cutting teeth. NOTE! This recommendation assumes that the length of the cutting teeth is not reduced excessively.

  • Page 14: Lubricating Cutting Equipment

    GENERAL SAFETY PRECAUTIONS • 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. • Fold the knob back in to lock the tensioning. Lubricating cutting equipment WARNING! Poor lubrication of cutting equipment may cause the chain to snap,...
  • Page 15 GENERAL SAFETY PRECAUTIONS • Check that the bar tip sprocket turns freely and that the lubricating hole in the tip sprocket is not blocked. Clean and lubricate if necessary. If the chain lubrication system is still not working after carrying out the above checks and associated measures you should contact your servicing dealer.

  • Page 16: Assembly

    Fitting the bar and chain WARNING! Always wear gloves, when working with the chain, in order to protect your hands from injury. 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).
  • Page 17 ASSEMBLY 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. Hold up the bar tip and tighten the bar knob by turning the knob clockwise.

  • Page 18: Fuel Handling

    When working with continuous high revs (e.g. limbing) a higher octane is recommended. Environment fuel HUSQVARNA recommends the use of alkylate fuel or environmental fuel for four-stroke engines blended with two- stroke oil as set out below. Note that carburetor adjustment may be necessary when changing the type of fuel (see instructions under the heading Carburetor).

  • Page 19: Fueling

    Fueling 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 a few minutes before refuelling. When refuelling, open the fuel cap slowly so that any excess pressure is released gently.

  • Page 20: Starting And Stopping

    STARTING AND STOPPING Starting and stopping 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.

  • Page 21: Starting And Stopping

    STARTING AND STOPPING Note! Pull the front hand guard towards the front handle. The chain brake is now disengaged. Your saw is ready for use. WARNING! Long term inhalation of the engine’s exhaust fumes, chain oil mist and dust from sawdust can represent a health risk.

  • Page 22: Working Techniques

    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 correctly and is not damaged.

  • Page 23: General Rules

    General rules 1 If you understand what kickback is and how it happens then you can reduce or eliminate the element of surprise. By being prepared you reduce the risk. Kickback is usually quite mild, but it can sometimes be very sudden and violent.

  • Page 24: Basic Cutting Technique

    Basic cutting technique WARNING! Never use a chain saw by holding it with one hand. A chain saw is not safely controlled with one hand. Always have a secure, firm grip around the handles with both hands. General • Always use full throttle when cutting! •...

  • Page 25: Tree Felling Technique

    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. Start by cutting from below (about 1/3 of the way through). Finish by cutting from above so that the two cuts meet. The log is supported at both ends.
  • Page 26 Remove any undergrowth from the base of the tree and check the area for obstacles (stones, branches, holes, etc.) so that you have a clear path of retreat when the tree starts to fall. Your path of retreat should be roughly 135 degrees away from the intended felling direction.

  • Page 27: How To Avoid Kickback

    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 tree. The safest method is to use a winch.
  • Page 28 Limbing WARNING! A majority of kickback accidents occur during limbing. Do not use the kickback zone of the guide bar. Be extremely cautious and avoid contacting the log, other limbs or objects with the nose of the guide bar. Be extremely cautious of limbs under tension.

  • Page 29: Maintenance

    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 manufactured to specifications that reduce harmful emissions. Function •...

  • Page 30: Throttle Lockout

    Checking the inertia brake release With the engine turned off, hold the chain saw over a stump or other firm object. Let go of the front handle so that the bar drops towards the stump as the chain saw rotates around the rear handle.

  • Page 31: Muffler

    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 damping system Regularly check the vibration damping units for cracks or deformation.

  • Page 32: Starter

    Starter 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.

  • Page 33: Air Filter

    The filter must therefore be replaced with a new one at regular intervals. A damaged air filter must always be replaced. A HUSQVARNA chain saw can be equipped with different types of air filters according to working conditions, weather, season, etc. Contact your dealer for advice.

  • Page 34: Cooling System

    Cooling system 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. 5 Cylinder cover (directs cold air over the cylinder).

  • Page 35: Maintenance Schedule

    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 Clean the outside of the machine. Check that the components of the throttle control work safely.

  • Page 36: Technical Data

    Technical data Engine Cylinder displacement, cu.in/cm Cylinder bore, inch/mm Stroke, inch/mm Idle speed, rpm Power, kW/hp @ rpm Ignition system Manufacturer of ignition system Type of ignition system Spark plug Electrode gap, inch/mm Fuel and lubrication system Manufacturer of carburetor Carburetor type Fuel tank capacity, US pint/litre Oil pump capacity at 9,000 rpm, ml/min...

  • Page 37: Bar And Chain Combinations

    Chain saw models Husqvarna 445, 445e and 450e met the kickback performance requirements of ANSI B 175.1-2000 when tested with the combinations of bars and saw chains listed below. The saw chain Husqvarna H30 is also classified as a low kickback saw chain since it met the requirements for low kickback saw chain outlined in ANSI B 175.1-2000.

  • Page 38: Federal Emission Control Warranty Statement

    The warranty period begins on the date small nonroad engine is delivered. LENGTH OF COVERAGE Husqvarna Forest & Garden warrants to the initial owner and each subsequent purchaser that the engine is free from defects in materials and workmanship which cause the failure of a warranted part for a period of two years.

  • Page 39: American Standard Safety Precautions

    AMERICAN STANDARD SAFETY PRECAUTIONS Safety precautions for chain saw users (ANSI B 175.1-2000 Annex C) Kickback safety precautions WARNING! Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.
  • Page 40 1150341-95 ´®z+RB3¶55¨ ´®z+RB3¶55¨ 2007-03-16...

This manual is also suitable for:

450e epa ii

Table of Contents