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Husqvarna 115 13 81-26 Operator's Manual

Husqvarna chainsaw operator's manual
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31
Carburettor Adjustment
Table of Contents
Oper ator ' s manual
445 445e 450e
Please r ead the operator's manual carefully and make sure you understand the instructions
before using the machine.
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
115 13 81-26 Re v .3 2009-01-14

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  Summary of Contents for Husqvarna 115 13 81-26

  • Page 1 Please r ead the operator’s manual carefully and make sure you understand the instructions before using the machine. 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 115 13 81-26 Re v .3 2009-01-14...

  • Page 2: Key To Symbols

    WARNING! Kickback may occur when the nose or tip of the guide bar touches an object, and cause a lightning fast reverse reaction, kicking the guide bar up and towards the operator. May cause serious personal injury. 115 13 81-26 Re v .3 2009-01-14...

  • Page 3: Table Of Contents

    Maintenance schedule ... 38 TECHNICAL D ATA T echnical data ... 39 Bar and chain combinations ... 40 Saw chain filing and file gauges ... 40 EC-declaration of conformity ... 41 115 13 81-26 Re v .3 2009-01-14 – English...

  • Page 4: Intr Oduction

    The business concept is to develop, manufacture and market motor driven products for forestry and gardening as well as for building and construction industry. Husqvarna ′ s aim is also to be in the front edge according to ergonomics, usability, security and environmental protection.

  • Page 5: Wha T Is What

    12 Chain oil tank 13 Product and serial number plate 14 Felling direction mark 15 Front handle 16 Front hand guard 115 13 81-26 Re v .3 2009-01-14 WHA T IS WHA T? 17 Muffler 18 Chain 19 Bar tip sprocket...

  • Page 6: General Safety Preca Utions

    Only use the bar/saw chain combinations we recommend, and follow the filing instructions. See instructions under the heading Technical data. 115 13 81-26 Re v .3 2009-01-14...

  • Page 7: Always Use Common Sense

    Ask your dealer for help in choosing the right equipment. • Approved protective helmet • Hearing protection 115 13 81-26 Re v .3 2009-01-14 • Protective goggles or a visor • Gloves with saw protection • Trousers with saw protection •...
  • Page 8 If you get a violent kickback while the kickback zone of the bar is farthest away from you the chain brake is designed to be activated by the inertia in the kickback direction. 115 13 81-26 Rev.3 2009-01-14...

  • Page 9: Chain Catcher

    If the chain brake is too sensitive it would activate all the time which would be a nuisance. 115 13 81-26 Rev.3 2009-01-14 Will my chain brake always protect me from injury in the event of a kickback? No.

  • Page 10: Right Hand Guard

    fire hazard. Keep fire fighting equipment handy. If a spark arrestor screen is required in your area, never use the saw without or with a broken spark arrestor screen. 115 13 81-26 Rev.3 2009-01-14...

  • Page 11: Cutting Equipment

    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: Sharpening Your Chain And Adjusting Depth Gauge Setting

    This will help you obtain the maximum kickback reduction and cutting performance from your chain. See instructions under the heading Technical data for information about sharpening your chain. WARNING! Departure from the sharpening instructions considerably increases the risk of kickback. 115 13 81-26 Rev.3 2009-01-14...

  • Page 13: Tensioning The Chain

    WARNING! The risk of kickback is increased if the depth gauge setting is too large! 115 13 81-26 Rev.3 2009-01-14 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.
  • Page 14 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. 115 13 81-26 Rev.3 2009-01-14...

  • Page 15: Lubricating Cutting Equipment

    (a bar that is too long will use more chain oil). 115 13 81-26 Rev.3 2009-01-14 Checking chain lubrication • Check the chain lubrication each time you refuel. See instructions under the heading Lubricating the bar tip sprocket.
  • Page 16 See instructions under the heading General working instructions. Check that all the chain saw safety features are working. See instructions under the headings General working instructions and General safety precautions. 115 13 81-26 Rev.3 2009-01-14...

  • Page 17: Assembly

    Tighten the bar nuts finger tight. Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain 115 13 81-26 Rev.3 2009-01-14 ASSEMBLY should be tensioned until it does not sag from the underside of the bar.

  • Page 18: Fitting Spike Bumper

    Check the chain tension regularly. A correctly tensioned chain ensures good cutting performance and long life. 18 – English ASSEMBLY Fitting a spike bumper To fit a spike bumper – contact your service agent. 115 13 81-26 Rev.3 2009-01-14...

  • Page 19: 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, either Aspen two-stroke fuel or environmental fuel for four-stroke engines blended with two-stroke oil as set out below. Note...

  • Page 20: Fuelling

    Long-term storage Empty the fuel/oil tanks in a well ventilated area. Store the fuel in approved cans in a safe place. Fit the bar guard. Clean the machine. See instructions under the heading Maintenance schedule. 115 13 81-26 Rev.3 2009-01-14...

  • Page 21: Starting And Stopping

    Grip the front handle with your left hand. Hold the chain saw on the ground by placing your right foot through the rear handle. 115 13 81-26 Rev.3 2009-01-14 STARTING AND STOPPING Pull the starter handle (4): Pull the starter handle with...

  • Page 22: Starting And Stopping

    Stop the engine by pushing the start/stop switch down. CAUTION! The start/stop switch automatically returns to run position. To avoid involuntary start up, the spark plug cap must always be removed from the spark plug when the machine is unsupervised. 115 13 81-26 Rev.3 2009-01-14...

  • Page 23: Working Techniques

    See instructions under the headings How to avoid kickback and Machine’s safety equipment. Wear personal protective equipment. See instructions under the heading Personal protective equipment. 115 13 81-26 Rev.3 2009-01-14 WORKING TECHNIQUES Basic safety rules Look around you: •...

  • Page 24: General Rules

    Take great care when you cut with the top edge of the bar, i.e. when cutting from the underside of the object. This is known as cutting on the push stroke. The chain tries to push the chain saw back towards the user. If 115 13 81-26 Rev.3 2009-01-14...

  • Page 25: Basic Cutting Technique

    Cutting from below = Cutting on the push stroke. Cutting on the push stroke increases the risk of kickback. See instructions under the heading How to avoid kickback. 115 13 81-26 Rev.3 2009-01-14 WORKING TECHNIQUES Terms Cutting = General term for cutting through wood.

  • Page 26: Tree Felling Technique

    The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1/2 tree lengths. Make sure that no-one else is in this ”risk zone” before or during felling. 115 13 81-26 Rev.3 2009-01-14...
  • Page 27 115 13 81-26 Rev.3 2009-01-14 WORKING TECHNIQUES Clearing the trunk and preparing your retreat Delimb the stem up to shoulder height. It is safer to work from the top down and to have the tree between you and the saw.
  • Page 28 There are methods for felling trees with a diameter larger than the bar length. However these methods involve a much greater risk that the kickback zone of the bar will come into contact with the tree. 115 13 81-26 Rev.3 2009-01-14...

  • Page 29: How To Avoid Kickback

    Make one or more cuts at or near the point of maximum tension. Make as many cuts of sufficient depth as 115 13 81-26 Rev.3 2009-01-14 WORKING TECHNIQUES necessary to reduce the tension and make the tree or branch break at the point of maximum tension.
  • Page 30 Keep the trunk between you and the chain saw as you move along the trunk. 30 – English WORKING TECHNIQUES Cutting the trunk into logs See instructions under the heading Basic cutting technique. 115 13 81-26 Rev.3 2009-01-14...

  • Page 31: Maintenance

    The user must only carry out the maintenance and service work described in this Operator’s Manual. More extensive work must be carried out by an authorised service workshop. Carburettor adjustment Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. Function •...

  • Page 32: Throttle Lockout

    Start the chain saw and apply full throttle. Release the throttle control and check that the chain stops and remains stationary. If the chain rotates when the throttle control is in the idle position you should check the carburettor idle adjustment. 115 13 81-26 Rev.3 2009-01-14...

  • Page 33: Muffler

    Regularly check the vibration damping units for cracks or deformation. Make sure the vibration damping units are securely attached to the engine unit and handle unit. 115 13 81-26 Rev.3 2009-01-14 MAINTENANCE Stop switch Start the engine and make sure the engine stops when you move the stop switch to the stop setting.

  • Page 34: Starter

    Note! Check that the pulley can be turned at least a further 1/2 turn when the starter cord is pulled all the way out. Stretch the line with the handle. Move your thumb and release the line. See the figure below. 115 13 81-26 Rev.3 2009-01-14...

  • Page 35: Air Filter

    A damaged air filter must always be replaced. A HUSQVARNA chain saw can be equipped with different types of air filter according to working conditions, weather, season, etc. Contact your dealer for advice.

  • Page 36: Spark Plug

    Cylinder cover (directs cold air over the cylinder). 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. 115 13 81-26 Rev.3 2009-01-14...

  • Page 37: Air Injection" Centrifugal Cleaning

    CAUTION! If the special winterising kit has been fitted or any measures have been taken to increase the temperature these changes must be reversed before the 115 13 81-26 Rev.3 2009-01-14 MAINTENANCE machine is used in normal temperature conditions. Otherwise there is a risk of overheating, resulting in severe damage to the engine.

  • Page 38: Maintenance Schedule

    Clean the outside of the carburettor. Check the fuel filter and the fuel hose. Replace if necessary. Empty the fuel tank and clean the inside. Empty the oil tank and clean the inside. Check all cables and connections. 115 13 81-26 Rev.3 2009-01-14...

  • Page 39: Technical Data

    Note 3: Equivalent vibration level, according to ISO 22867, is calculated as the time-weighted energy total for vibration levels under various working conditions with the following time distribution: 1/3 idling, 1/3 max. load, 1/3 max. speed. 115 13 81-26 Rev.3 2009-01-14 TECHNICAL DATA...

  • Page 40: Bar And Chain Combinations

    0,325 0,325 0,325 0,325 0,325 0,325 0,325 0,325 0,325 Saw chain filing and file gauges 40 – English TECHNICAL DATA Gauge, mm Max. nose radius Chain Type Length, drive links (no.) Husqvarna H30 Husqvarna H25 115 13 81-26 Rev.3 2009-01-14...

  • Page 41: Ec-Declaration Of Conformity

    Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain saws Husqvarna 445, 445e and 450e from 2007’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: - of June 22, 1998 ”relating to machinery”...
  • Page 42 ´®z+SF,¶6+¨ ´®z+SF,¶6+¨ 115 13 81-26 Rev.3 2009-01-14...
  • Page 43 115 13 81-26 Rev.3 2009-01-14...
  • Page 44 1151381-26 ´®z+SF,¶6+¨ ´®z+SF,¶6+¨ 2009-01-14 115 13 81-26 Rev.3 2009-01-14...

This manual is also suitable for:

450e445, 445e, 450e445435435e440e ... Show all

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