Husqvarna K970 User Manual
Have a look at the manual Husqvarna K970 User Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 35 Husqvarna manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
EE E E nn n n gg g g ll l l ii i i ss s s hh h h K 970 Operator’s manual Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. It is the owner’s responsibility to make sure that any person who use this power cutter have read this manual!
2 – English KEY TO SYMBOLS Symbols on the machine: WARNING! The machine can be a dangerous tool if used incorrectly or carelessly, which can cause 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. Wear personal protective equipment. See instructions under the heading ”Personal protective equipment”. WARNING! Dust forms when cutting, this can cause injuries if inhaled. Use an approved breathing mask. Avoid inhaling petrol fumes and exhaust fumes. Always provide for good ventilation. WARNING! Kickbacks can be sudden, rapid and violent and can cause life threatening injuries. Read and understand the instructions in the manual before using the machine. WARNING! Sparks from the cutting blade can cause fire in combustible materials such as: petrol (gas), wood, dry grass etc. You will find the following labels on your power cutter: The Emissions Compliance Period referred to on the Emission Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal emissions requirements. Other symbols/decals on the machine refer to special certification requirements for certain markets. Explanation of warning levels The warnings are graded in three levels. WARNING! CAUTION! NOTICE! ! WARNING! Used if there is a risk of serious injury or death for the operator or damage to the surroundings if the instructions in the manual are not followed. ! CAUTION! Used if there is a risk of injury to the operator or damage to the surroundings if the instructions in the manual are not followed. NOTICE! Used if there is a risk of damage to materials or the machine if the instructions in the manual are not followed. The engine exhaust from this product contains chemical known to the State of California to cause cancer, birth defects or other reproductive harm.
English – 3 CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: .............................................2 Explanation of warning levels ......................................2 CONTENTS Contents ......................................................................3 PRESENTATION Dear customer! ............................................................4 Features .......................................................................4 PRESENTATION What is what on the power cutter - K 970? ..................5 MACHINE´S SAFETY EQUIPMENT General ........................................................................6 CUTTING BLADES General ........................................................................8 Abrasive blades ...........................................................8 Diamond blades ...........................................................9 Toothed blades .............................................................9 Transport and storage ..................................................9 ASSEMBLING AND ADJUSTMENTS General ........................................................................10 Checking the drive shaft and flange washers ..............10 Fitting the cutting blade ................................................10 Guard for the blade ......................................................10 FUEL HANDLING General ........................................................................11 Fuel ..............................................................................11 Fueling .........................................................................11 Transport and storage ..................................................11 OPERATING Protective equipment ...................................................12 General safety precautions ..........................................12 Transport and storage ..................................................15 STARTING AND STOPPING Before starting .............................................................16 Starting ........................................................................16 Stopping .......................................................................17 MAINTENANCE General ........................................................................18 Maintenance schedule .................................................18 Cleaning .......................................................................19 Functional inspection ...................................................19 TECHNICAL DATA Technical data ..............................................................23 Cutting equipment ........................................................23 FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS .....24
4 – English PRESENTATION Dear customer! Thank you for choosing a Husqvarna product! It is our wish that you will be satisfied with your product and that it will be your companion for a long time. A purchase of one of our products gives you access to professional help with repairs and services. If the retailer who sells your machine is not one of our authorised dealers, ask him for the address of your nearest service workshop. This operator’s manual is a valuable document. Make sure it is always at hand at the work place. By following its ′ content (using, service, maintenance etc) the life span and the second-hand value of the machine can be extended. If you ever lend or sell this machine, make sure that the borrower or buyer gets the operator ′s manual, so they will also know how to properly maintain and use it. More than 300 years of innovation Husqvarna AB is a Swedish company based on a tradition that dates back to 1689, when the Swedish King Charles XI ordered the construction of a factory for production of muskets. At that time, the foundation was already laid for the engineering skills behind the development of some of the worlds leading products in areas such as hunting weapons, bicycles, motorcycles, domestic appliances, sewing machines and outdoor products. Husqvarna is the global leader in outdoor power products for forestry, park maintenance and lawn and garden care, as well as cutting equipment and diamond tools for the construction and stone industries. User responsibility It is the owner’s/employer’s responsibility that the operator has sufficient knowledge about how to use the machine safely. Supervisors and operators must have read and understood the Operator’s Manual. They must be aware of: • The machine’s safety instructions. • The machine’s range of applications and limitations. • How the machine is to be used and maintained. National legislation could regulate the use of this machine. Find out what legislation is applicable in the place where you work before you start using the machine. The manufacturer’s reservation All information and all data in the Operator’s Manual were applicable at the time the Operator’s Manual was sent to print. Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice. For customer assistance, contact us at our website: www.usa.husqvarna.com Features Values such as high performance, reliability, innovative technology, advanced technical solutions and environmental considerations distinguish Husqvarnas products. Some of the unique features of your product are described below. Active Air Filtration™ Centrifugal air cleaning in three steps for longer service life and longer service intervals. SmartCarb™ Built-in automatic filter compensation maintains high power and reduces fuel consumption. Dura Starter™ Dust sealed starter unit, where the return spring and the pulley bearing are sealed which makes the starter virtually maintenance free and even more reliable. X-Torq® The X-Torq® engine provides a more accessible torque for a wider range of speeds which results in maximum cutting capacity. X-Torq® reduces the fuel consumption with up to 20% and the emissions with up to 60%. EasyStart The engine and starter are designed to ensure quick and easy starting of the machine. Reduces the pull resistance in the starter cord with up to 40%. (Reduces the compression during starting.) Air purge When you push the air purge diaphragm, fuel is pumped through to the carburettor. Fewer pulls are required for starting, meaning the machine becomes easier to start. DEX Low flushing wet cutting kit for effective dust handling. Efficient vibration damping system Efficient vibration dampers spare arms and hands.
English – 5 PRESENTATION What is what on the power cutter - K 970? 1Front handle 2 Water tap 3 Warning decal 4 Air filter cover 5 Cylinder cover 6 Choke 7 Throttle lockout 8 Throttle control 9 Air purge 10 Stop switch 11 Starter handle 12 Starter 13 Decompression valve 14 Muffler 15 Adjustment handle for guard 16 Guard for the blade 17 Fuel tank 18 Water connection with filter 19 Belt guard 20 Type plate 21 Cutting arm 22 Belt tensioner 23 Cutting head 24 Cutting blade 25 Combination spanner 26 Operator’s manual
6 – English MACHINE´S SAFETY EQUIPMENT General This section describes the machine′s safety equipment, its purpose, and how checks and maintenance should be carried out to ensure that it operates correctly. Throttle lockout The throttle trigger lock is designed to prevent accidental operation of the throttle. When the lock (A) is pressed in this releases the throttle (B). The trigger lock remains pressed in as long as the throttle is pressed. When the grip on the handle is released the throttle trigger and the throttle trigger lock both return to their original positions. This is controlled by two independent return spring systems. This means that the throttle trigger is automatically locked in the idle position. Checking the throttle lockout •Make sure the throttle control is locked at the idle setting when the throttle lockout is released. • Press the throttle lockout and make sure it returns to its original position when you release it. • Check that the throttle control and throttle lockout move freely and that the return springs work properly. • Start the power cutter and apply full throttle. Release the throttle control and check that the cutting blade stops and remains stationary. If the cutting blade rotates when the throttle is in the idle position you should check the carburettor’s idle adjustment. See instructions in the section Maintenance. Stop switch Use the stop switch to switch off the engine. Checking the stop switch •Start the engine and make sure the engine stops when you move the stop switch to the stop setting. Guard for the blade This guard is fitted above the cutting blade and is designed to prevent parts of the blade or cutting fragments from being thrown towards the user. Checking the blade guard •Check that the guard over the cutting blade is not cracked or damaged in any other way. Replace when damaged. • Check that the cutting blade is fitted correctly and does not show signs of damage. A damaged cutting blade can cause personal injury. ! WARNING! Never use a machine that has faulty safety equipment! If your machine fails any of these checks contact your service agent to get it repaired. The engine should be switched off, and the stop switch in STOP position. ! WARNING! Always check that the guard is correctly fitted before starting the machine.
English – 7 MACHINE´S SAFETY EQUIPMENT 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 the engine unit/cutting equipment and the machine ′s handle unit. The engine body, including the cutting equipment, is insulated from the handles by vibration damping units. Checking the vibration damping system •Check the vibration damping units regularly for cracks or deformation. Replace them if damaged. • Check that the vibration damping element is securely attached between the engine unit and handle unit. Muffler The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user. Inspecting the muffler Check regularly that the muffler is complete and secured correctly. ! WARNING! Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation. Contact your doctor if you experience symptoms of overexposure to vibration. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the fingers, hands or wrists. These symptoms may be increased in cold temperatures. ! WARNING! The engine should be switched off, and the stop switch in STOP position. ! WARNING! Never use a machine without a muffler, or with a faulty muffler. A damaged muffler may substantially increase the noise level and the fire hazard. Keep fire fighting equipment handy. The muffler gets very hot during and after use. This also applies during idling. Be aware of the fire hazard, especially when working near flammable substances and/or vapours.
8 – English CUTTING BLADES General •Cutting blades are available in two basic designs; abrasive baldes and diamond blades. • High-quality blades are often most economical. Lower quality blades often have inferior cutting capacity and a shorter service life, which results in a higher cost in relation to the quantity of material that is cut. • Make sure that the right bushing is used for the cutting blade to be fitted on the machine. See the instructions under the heading Assembling the cutting blade. Suitable cutting blades *Without water Cutting blades for different materials Follow the instructions supplied with the cutting blade concerning the suitability of the blade for various applications, or consult your dealer in case of doubts. * CAUTION! Only specialty blades. Hand-held, high-speed machines •Our cutting blades are manufactured for high-speed, portable power cutters. • Check that the blade is approved for the same or higher speed according to the aproval plate of the engine. Never use a cutting blade with a lower speed rating than that of the power cutter. Blade vibration •The blade can become out-of-round and vibrate if an excessive feed pressure is used. • A lower feed pressure can stop the vibration. Otherwise replace the blade. Abrasive blades •The cutting material on abrasive blades consists of grit bonded using an organic binder. ”Reinforced blades” are made up of a fabric or fibre base that prevents total breakage at maximum working speed if the blade should be cracked or damaged. • A cutting blade’s performance is determined by the type and size of abrasive corn, and the type and hardness of the bonding agent. • Ensure the blade it not cracked or damaged in any other way. • Test the abrasive blade by hanging it on your finger and tapping it lightly with a screwdriver or the like. If the blade does not produce a resonant, ringing sound it is damaged. ! WARNING! A cutting blade may burst and cause injury to the operator. Cutting bladesK 970 Abrasive bladesYes* Diamond bladesYe s Toothed bladesNo ! WARNING! Never use a cutting blade for any other purpose than that it was intended for. Cutting plastics with a diamond blade can cause kickback when the material melts due to the heat produced when cutting and sticks to the blade. Never cut plastic materials with a diamond blade! ConcreteMetalPlasticCast iron Abrasive bladesXXXX Diamond bladesXX*X* ! WARNING! Never use a cutting blade at a lower speed rating than that of the power cutter. Only use cutting blades intended for high speed handheld power cutters.
English – 9 CUTTING BLADES Abrasive blades for different materials Diamond blades General •Diamond blades consist of a steel core provided with segments that contain industrial diamonds. • Diamond blades ensure lower costs per cutting operation, fewer blade changes and a constant cutting depth. • When using diamond blades make sure that it rotates in the direction indicated by the arrow on the blade. Diamond blades for different materials •Diamond blades are ideal for masonry, reinforced concrete and other composite materials. • Diamond blades are available in several hardness classes. • Special blades should be used when cutting metal. Ask your dealer for help in choosing the right product. Sharpening diamond blades •Always use a sharp diamond blade. • Diamond blades can become dull when the wrong feeding pressure is used or when cutting certain materials such as heavily reinforced concrete. Working with a blunt diamond blade causes overheating, which can result in the diamond segments coming loose. • Sharpen the blade by cutting in a soft material such as sandstone or brick. Diamond blades for dry cutting •Diamond blades for dry cutting can be used both with and without water cooling. • When dry cutting, lift the blade out from the cut every 30– 60 seconds and let it rotate in the air for 10 seconds to let it cool. If this is not done, the blade may be overheated. Diamond blades for wet cutting •Diamond blades for wet cutting must be water cooled. If this is not done, the blade may be overheated. • Water cooling cools the blade and increases its service life while also reducing the formation of dust. Toothed blades Transport and storage •Do not store or transport the power cutter with the cutting blade fitted. All blades should be removed from the cutter after use and stored carefully. • Store cutting blades in dry, frost free conditions. Special care should be taken with abrasive blades. Abrasive blades must be stored on a flat, level surface. If an abrasive blades is stored in humid conditions, this can cause imbalance and result in injury. • Inspect new blades for transport or storage damage. Blade typeMaterial Concrete blade Concrete, asphalt, stone masonry, cast iron, aluminium, copper, brass, cables, rubber, plastic, etc. Metal bladeSteel, steel alloys and other hard metals. ! WARNING! Do not use abrasive blades with water. The strength is impaired when abrasive blades are exposed to water or moisture, which results in an increased risk of the blade breaking. ! WARNING! Cutting plastics with a diamond blade can cause kickback when the material melts due to the heat produced when cutting and sticks to the blade. ! WARNING! Diamond blades get very hot when used. An overheated blade is a result of improper use, and may cause deformation of the blade, resulting in damage and injuries.! WARNING! Never use toothed blades such as wood cutting blades, circular toothed blades, carbide tipped blades etc. The risk of kickback is significantly increased and tips can be torn off and thrown at high speed. Carelessness can result in serious personal injury or even death. Government regulation requires a different type of guarding for carbide tipped blades not available on power cutters – a so called 360 degree guard. Power Cutters (this saw) use Abrasive or Diamond blades and have a different guarding system which does not provide protection against the dangers presented by wood cutting blades.
10 – English ASSEMBLING AND ADJUSTMENTS General Checking the drive shaft and flange washers When the blade is replaced with a new one, check the flange washers and the drive shaft. • Check that the threads on the drive shaft are undamaged. • Check that the contact surfaces on the blade and the flange washers are undamaged, of the correct dimension, clean, and that they run properly on the drive axle. • Do not use warped, notched, indented or dirty flange washers. Do not use different dimensions of flange washers. Fitting the cutting blade •Husqvarna’s blades are approved for hand-held power cutters. • Bushings can be fitted on the machine axle to adjust the machine to the centre hole of the blade. Use a bushing with the correct diameter! The blades are marked with the diameter of the centre hole. • When a diamond blade is mounted on the power cutter make sure that the diamond blade will rotate in the direction indicated by the arrow on the blade. • The blade is placed on the bushing (A) between the inner flange washer (B) and the flange washer (C). The flange washer is turned so that it fits on the axle. • Lock the shaft. • Tightening torque for the bolt holding the blade is: 15-25 Nm (130-215 in.lb). Guard for the blade •The guard for the cutting equipment should be adjusted so that the rear section is flush with the work piece. Spatter and sparks from the material being cut are then collected up by the guard and led away from the user. The guard must always be fitted on the machine. ! WARNING! The engine should be switched off, and the stop switch in STOP position.