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Husqvarna 45 Operator's Manual

Husqvarna chain saw operator's manual.
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Operator´s manual
Please read these instructions carefully and make
sure you understand them before using the saw.
101 90 11-95


   Summary of Contents for Husqvarna 45

  • Page 1

    45/49 Operator´s manual Please read these instructions carefully and make sure you understand them before using the saw. (EPA) 101 90 11-95...

  • Page 2: Key To Symbols

    Symbols CAUTION! Chain saws can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. Please read the instructions carefully and make sure you understand them before using the saw. Always wear: •...

  • Page 3: Table Of Contents

    Cooling system ... 32 Centrifugal cleaning ”Air Injection” ... 32 Daily maintenance ... 32 Weekly maintenance ... 33 Monthly maintenance ... 33 Technical data 45 ... 34 49 ... 34 Federal Emission Control Warranty Statement Your warranty rights and obligations ... 35 Contents ...

  • Page 4: Safety Instructions

    A chain saw is a dangerous tool if used carelessly or incorrectly and can cause serious, even fatal injuries. It is very important that you read and understand these instructions. PERSONAL PROTECTIVE EQUIPMENT MOST CHAIN SAW ACCIDENTS HAPPEN WHEN THE CHAIN TOUCHES THE OPERA- TOR.

  • Page 5

    1 Chain brake and front hand guard YOUR chain saw is equipped with a chain brake that is desig- ned to stop the chain immediately if you get a kickback. The chain brake reduces the risk of accidents, but only You can prevent them.

  • Page 6: Chain Catcher

    The way the chain brake is triggered, either manually or automatically, depends on the force of the kickback and the position of the chain saw in relation to the object that the kickback zone of the bar strikes. If you get a violent kickback while the kickback zone of the bar is farthest away from you...

  • Page 7: Stop Switch

    5 Vibration damping system Your chain saw is equipped with a vibration damping system that is designed to minimise vibrations and make operation easier. When you use a chain saw vibrations are generated by the uneven contact between the chain and the wood you are cutting.

  • Page 8: Inspecting, Maintaining And Servicing Chain Saw Safety Equipment

    Inspecting, maintaining and servicing chain saw safety equipment SPECIAL TRAINING IS REQUIRED to service and repair chain saws. This is especially true of chain saw safety equipment. If your chain saw fails any of the checks described below take it to your SERVICE AGENT. When you buy any of our products we guarantee the availability of professional repairs and service.

  • Page 9

    2 Throttle lock Make sure the throttle control is locked at the idle setting when you release the throttle lock. Press the throttle lock and make sure it returns to its original position when you release it. Check that the throttle control and throttle lock move freely and that the return springs work...

  • Page 10: Cutting Equipment

    7 Muffler Never use a chain saw that has a faulty muffler. Regularly check that the muffler is securely attached to the chain saw. If the muffler on your saw is fitted with a spark arrestor mesh this must be cleaned regularly. A blocked mesh will cause the engine to overheat and may lead to serious...

  • Page 11

    1 Cutting equipment designed to minimise kickback Faulty cutting equipment or the wrong combination of bar and chain increases the risk of kickback. Use only the bar and chain combinations recommended in the ”Technical data” section. The only way to avoid kickback is to make sure that the kick- back zone of the bar never touches anything.

  • Page 12

    2 Sharpening your chain and adjusting raker clearance The risk of kickback is increased with a badly sharpened chain! A General information on sharpening cutting teeth • Never use a blunt chain. When the chain is blunt you have to exert more pressure to force the bar through the wood and the cuttings will be very small.

  • Page 13: Tensioning The Chain

    C General advice on setting raker clearance • When you sharpen the cutting teeth you reduce the RAKER CLEARANCE (cutting depth). To maintain cutting performance you must file back the raker teeth to the recommended height. See the ”Technical data” section to find the raker clearance for your saw chain.

  • Page 14: Lubricating Cutting Equipment

    SAFETY INSTRUCTIONS 4 Lubricating cutting equipment A Chain oil • Chainsaw chain oil must demonstrate good adhesion to the chain and also maintain its flow caracteristics regardless of whether it is warm summer or cold winter weather. • As a chainsaw manufacturer we have developed an optimal chain oil which, with its vegetable oil base, is also biodegradable.

  • Page 15

    C Checking chain lubrication • Check the chain lubrication each time you refuel. Aim the tip of the saw at a light coloured surface about 20 cm away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on the light surface.

  • Page 16: How To Avoid Kickback

    H Bar Check regularly: • Whether there are burrs on the edges of the bar. Remove these with a file if necessary. • Whether the groove in the bar has become badly worn. Replace the bar if necessary. • Whether the tip of the bar is uneven or badly worn.

  • Page 17: General Rules

    General rules 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 18: General Safety Precautions

    • Move the saw at least 3 m from the refuelling point before starting it. • Never start the chainsaw: If you have spilt fuel or chain oil on the saw. Wipe off the spill and allow remaining fuel to evaporate.

  • Page 19: General Working Instructions

    GENERAL WORKING INSTRUCTIONS This section describes basic safety rules for using a chain saw. This information is no substitute for professional skills and experience. If you get into a situation where you feel unsafe, stop and seek expert advice (look under FORESTRY SERVICES in the telephone directory).

  • Page 20

    2 Basic cutting technique General • Always use full throttle when cutting! • Reduce the speed to idle after every cut (running the engine for too long at full throttle without any load can lead to serious engine damage). • Cutting from above = Cutting on the pull stroke. •...

  • Page 21

    2 The log is supported at one end. There is a high risk that it will split. A Start by cutting from below (about 1/3 of the way through). B Finish by cutting from above so that the two cuts meet. 3 The log is supported at both ends.

  • Page 22

    The directional cut should run 1/4 of the diameter through the trunk and the angle between the TOP CUT and BOTTOM CUT should be 45°. The line where the two cuts meet is called the DIRECTIONAL CUT LINE. This line should be perfectly horizontal and at right angles (90°) to the chosen felling...

  • Page 23

    We recommend that you use a bar that is longer than the diameter of the tree, so that you can make the FELLING CUT and DIRECTIONAL CUT with single cutting stokes. (See ”Technical data” to find out which lengths of bar are recommended for your saw).

  • Page 24: What Is What

    What is what? 1. Cylinder cover. 2. Front handle. 3. Front hand guard. 4. Starter cover. 5. Chain oil tank. 6. Starter handle. 7. Adjuster screw, carburetor. 8. Choke control/Start throttle lock. 9. Rear handle. 10. Stop switch. Ignition on/off switch. 11.

  • Page 25: Mounting Guide Bar And Chain

    Mounting guide bar and chain 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. Take off the bar nuts and remove the clutch cover.

  • Page 26: Fuel Handling

    Two-stroke oil • For the best results use HUSQVARNA two-stroke oil, which is especially developed for chain saws. Mixing ratio 1:50 (2%). • Never use two-stroke oil intended for water cooled outboard engines, so-called, outboard oil.

  • Page 27: Fuelling

    Fuelling Taking the following precautions, will lessen the risk of fire. • Do not smoke or place warm objects in the vicinity of the fuel. • Always shut off the engine before refuelling. • Slowly open the fuel cap, when filling fuel, so that possible overpressure is slowly released.

  • Page 28: Start And Stop

    Start and stop WARNING! • Never start the saw engine without the bar, chain and clutch cover (chain brake) assembled - or else the clutch can come loose and cause personal injuries. • Always move the saw away from the fueling area before starting.

  • Page 29: Maintenance

    Carburetor Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. After your unit has been run 8-10 tanks of fuel the engine has broken in. To ensure that your unit is at peak performance and...

  • Page 30: Starter Device

    Starter device WARNING! • When the recoil spring is assembled in the starter housing, it is in tensioned position and can when treated carelessly, pop out and cause injuries. • Always be careful, when changing the recoil spring or the starter cord. Always wear safety goggles for eye protection.

  • Page 31: Air Filter

    Air filter The air filter must be regularly cleaned from dust and dirt in order to avoid: • Carburetor malfunctions • Starting problems • Engine power reduction • Unnecessary wear on the engine parts • Abnormal fuel consumption Clean the air filter daily or more often if the air is exceptionally dusty in the working area.

  • Page 32: Cooling System

    Cooling system To obtain the lowest possible running temperature the saw is equipped with a cooling system. The cooling system consists of: 1. Air intake on the starter unit. 2. Air guide plate. 3. Fan blades on the flywheel. 4. Cooling fins on the cylinder.

  • Page 33: Weekly Maintenance

    Weekly maintenance 1. Check that the AV elements are not soft or torn. 2. Lubricate the clutch drum bearing. 3. File off burrs, if any, on the sides of the bar. 4. Clean the spark plug and check the gap. The correct gap is 0,5 mm (0,020 inch).

  • Page 34: Technical Data

    Recommended bar and chain combinations 3,0/49 Following is a list of recommended cutting equipment for the 1,73/44 Husqvarna Models 45 and 49. The combinations of powerhead, 1,26/32 bar and chain have been investigated in accordance with the 2 500 kickback requirements of ANSI B 175.1 – 1991. The guide bar...

  • Page 35: Federal Emission Control Warranty Statement

    REPAIR OR REPLACEMENT OF PARTS Repair or replacement of any warranted part will be perfor- med at no charge to the owner at an approved Husqvarna Forest & Garden servicing dealer. If you have any questions regarding your warranty rights and responsibilities, you should contact your nearest authorized servicing dealer or call Husqvarna Forest &...

  • Page 36

    ´*3!3¶5B¨ 1998W48...

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