Operator’s manual Manuel d’utilisation Manual de instrucciones K970 II PPlease read the operator’s manual carefully and make sure you understand the instructions before using the machine. Lire attentivement et bien assimiler le manuel d’utilisation avant d’utiliser la machine.
KEY TO SYMBOLS This manual is the North American version used in the US and Canada. It contains information specific for North America which may not be applicable to countries outside North America. 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.
CONTENTS Contents KEY TO SYMBOLS Manual version ..................................................... Symbols on the machine ...................................... Explanation of warning levels ............................... CONTENTS Contents ............................................................... Note the following before starting: ........................ PRESENTATION Dear customer! ..................................................... Design and features .........................................
PRESENTATION Dear customer! Design and features Thank you for choosing a Husqvarna product! This is a high speed, hand held, power cutter designed to cut hard materials like masonry or steel and should not be used for any purpose not described in this manual. Safe operation of this product requires the operator to read this manual carefully. Ask your dealer or Husqvarna should you need more information.
PRESENTATION What is what on the power cutter - K970 II? 1 Front handle 16 Blade guard 2 Water tap 17 Fuel cap 3 Warning decal 18 Type plate 4 Air filter cover 19 Water connection with filter 5 Cylinder cover 20 Belt guard 6 Choke control with start throttle lock 21 Cutting arm 7 Throttle trigger lockout 22 Belt tensioner 8 Throttle trigger 23 Cutting head 9 Air purge 24 Cutting blade (not supplied) 10 Stop switch 25 Combination spanner 11 Starter handle 26 Water connector, GA
MACHINE´S SAFETY EQUIPMENT General ! • Check that the throttle trigger 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".
MACHINE´S SAFETY EQUIPMENT Blade guard ! Checking the vibration damping system WARNING! Always check that the guard is correctly fitted before starting the machine. 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. ! WARNING! The engine should be switched off, and the stop switch in STOP position. • Check the vibration damping units regularly for cracks or deformation. Replace them if damaged.
CUTTING BLADES General ! Cutting blades for different materials WARNING! A cutting blade may burst and cause injury to the operator. ! Never use a diamond blade to cut plastic material. The heat produced during cutting may melt the plastic and it can stick to the cutting blade and cause a kickback. The cutting blade manufacturer issues warnings and recommendations for the use and proper care of the cutting blade. Those warnings come with the cutting blade.
CUTTING BLADES Abrasive blades ! • 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. General ! 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.
CUTTING BLADES Diamond blades and cooling 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.
ASSEMBLING AND ADJUSTMENTS General ! WARNING! The engine should be switched off, and the stop switch in STOP position. Checking the direction of the blade rotation • Husqvarna’s blades are high speed blades approved for hand held power cutters. When using diamond blades make sure that it rotates in the direction indicated by the arrow on the blade. The direction of rotation for the machine is shown by arrows on the cutting arm.
ASSEMBLING AND ADJUSTMENTS Blade guard 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. • Disconnect the water hose from the blade guard. • Remove the belt from the belt pulley. • The cutting head is now loose and can be removed from the machine. • Remove the cutting head and attach it to the other side of the cutting arm.
FUEL HANDLING General ! WARNING! Running an engine in a confined or badly ventilated area can result in death due to asphyxiation or carbon monoxide poisoning. Use fans to ensure proper air circulation when working in trenches or ditches deeper than one meter (3 foot). Fuel and fuel fumes are flammable and can cause serious injury when inhaled or allowed to come in contact with the skin. For this reason observe caution when handling fuel and make sure there is adequate ventilation.
FUEL HANDLING Fueling ! WARNING! Always stop the engine and let it cool for a few minutes before refueling. The engine should be switched off, and the stop switch in STOP position. When refuelling, open the fuel cap slowly so that any excess pressure is released gently. Clean the area around the fuel cap. Tighten the fuel cap carefully after refueling. If the cap is not properly tightened the cap might vibrate lose and fuel may escape from the fuel tank creating a fire hazard.
OPERATING Protective equipment General safety precautions General This section describes basic safety directions for using the machine. This information is never a substitute for professional skills and experience. • Do not use the machine unless you are able to call for help in the event of an accident. • Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
OPERATING ! WARNING! Unauthorized modifications and/or accessories may lead to serious injury or death to the user or others. Under no circumstances may the design of the machine be modified without the permission of the manufacturer. Do not modify this product or use it if it appears to have been modified by others. • Ensure that the working area is sufficiently illuminated to create a safe working environment.
OPERATING • Stand parallel to the cutting blade. Avoid standing straight behind. In the event of a kickback the saw will move in the plane of the cutting blade. • Maintain a safe distance from the cutting blade when the engine is running. • Never leave the machine unsupervised with the motor running. • Never move the machine when the cutting equipment is rotating. The machine is equipped with a friction retarder to shorten the blade stop time.
OPERATING Kickback ! WARNING! Kickbacks are sudden and can be very violent. The power cutter can be thrown up and back towards the user in a rotating motion causing serious or even fatal injury. It is vital to understand what causes kickback and how to avoid it before using the machine. Kickback is the sudden upward motion that can occur if the blade is pinched or stalled in the kickback zone. Most kickbacks are small and pose little danger.
OPERATING Pipe cutting Special care should be taken when cutting in pipes. If the pipe is not properly supported and the cut kept open through out the cutting, the blade might be pinched in the kickback zone and cause a severe kickback. Be especially alert when cutting a pipe with a belled end or a pipe in a trench that, if not properly supported, may sag and pinch the blade. Before starting the cut the pipe must be secure so it does not move or roll during cutting.
STARTING AND STOPPING Before starting ! WARNING! Note the following before starting: Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. • Decompression valve: Press in the valve to reduce the pressure in the cylinder, this is to assist starting the power cutter. The decompression valve should always be used when starting. The valve automatically returns to its initial position when the machine starts.
STARTING AND STOPPING • Push in the choke control as soon as the engine starts, with the choke pulled out the engine will stop after a few seconds. (If the engine stops anyway, pull the starter handle again.) • Press the throttle trigger to disengage the start throttle and the machine will idle. • Grip the front handle with your left hand. Put your right foot on the lower section of the rear handle pressing the machine against the ground.
STARTING AND STOPPING Stopping ! • CAUTION! The cutting blade continues to rotate up to a minute after the motor has stopped. (Blade coasting.) Make sure that the cutting blade can rotate freely until it is completely stopped. Carelessness can result in serious personal injury. Stop the engine by moving the stop switch (STOP) to the right.
MAINTENANCE General ! WARNING! The user must only carry out the maintenance and service work described in this manual. More extensive work must be carried out by an authorized service workshop. The engine should be switched off, and the stop switch in STOP position. Wear personal protective equipment. See under heading ”Personal protective equipment”.
MAINTENANCE Cleaning Functional inspection External cleaning General inspection • • Clean the machine daily by rinsing it with clean water after the work is finished. Cooling air intake • Clean the cooling air intake when needed. Check that nuts and screws are tight. Drive belt Check the tension of the drive belt • For correct tensioning of the drive belt, the square nut should be positioned opposite the marking on the belt cover.
MAINTENANCE Replacing the drive belt ! • WARNING! Never start the engine when the belt pulley and clutch are removed for maintenance. Do not start the machine without the cutting arm or cutting head fitted. Otherwise the clutch could come loose and cause personal injuries. First release the two bolts and then the adjuster screw to release the belt tension. Carburetor The carburettor is equipped with fixed needles to ensure the machine always receives the correct mixture of fuel and air.
MAINTENANCE Starter housing ! • 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. Secure the starter cord around the cord pulley as illustrated. Tighten the fastening well and ensure that the free end is as short as possible. Secure the end of the starter cord in the starter handle. Always be careful when changing the recoil spring or the starter cord. Always wear protective goggles.
MAINTENANCE • Bear in mind that the return spring lies tensioned in the starter housing. • Loosen the bolts holding the spring cassette. Fuel system General • Check that the fuel cap and its seal are not damaged. • Check the fuel hose. Replace when damaged. Fuel filter • • Remove the recoil spring by turning the starter over and loosen the hooks, with the help of a screwdriver. The hooks hold the return spring assembly on the starter. • The fuel filter sits inside the fuel tank.
TECHNICAL DATA Technical data Technical data K970 II Engine Cylinder displacement, cu.in/cm3 5,7/93.
FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The EPA (The US Environmental Protection Agency), Environment Canada and Husqvarna Construction Products are pleased to explain the emissions control system warranty on your 2009 and later small nonroad engine. In U.S. and Canada, new small nonroad engines must be designed, built and equipped to meet the federal stringent anti-smog standards.
FEDERAL EMISSION CONTROL WARRANTY STATEMENT MAINTENANCE, REPLACEMENT AND REPAIR OF EMISSION-RELATED PARTS Any Husqvarna Construction Products approved replacement part used in the performance of any warranty maintenance or repairs on emission-related parts, will be provided without charge to the owner if the part is under warranty. EMISSION CONTROL WARRANTY PARTS LIST 1 Carburetor and internal parts 2 Intake pipe, airfilter holder and carburetor bolts.
