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Operator′s manual
K760
K760 Rescue
Please read the operator’s manual carefully and make sure you understand the instructions
before using the machine.
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KEY TO SYMBOLS Air purge Manual version This manual is the International version used for all English speaking countries outside North America. If you operate in North America use the US-version. Decompression valve Symbols on the machine WARNING! The machine can be a dangerous tool if used incorrectly or carelessly, which can cause serious or Refuelling, petrol/oil mix fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you unde
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CONTENTS Cleaning ................................................................ 25 Contents Functional inspection ............................................ 25 KEY TO SYMBOLS TECHNICAL DATA Manual version ..................................................... 2 Technical data ....................................................... 29 Symbols on the machine ...................................... 2 Cutting equipment ..............................................
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PRESENTATION Dear Customer, Design and features This is a high speed, hand held, power cutter designed to Thank you for choosing a Husqvarna product! cut hard materials like masonry or steel and should not be It is our wish that you will be satisfied with your product used for any purpose not described in this manual. Safe and that it will be your companion for a long time. A operation of this product requires the operator to read this purchase of one
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PRESENTATION What is what on the power cutter - K760? 1 Front handle 15 Blade guard 2 Water tap 16 Decompression valve 3 Warning decal 17 Air purge 4 Air filter cover 18 Fuel cap 5 Cylinder cover 19 Water connection with filter 6 Choke control with start throttle lock 20 Belt guard 7 Throttle lockout 21 Cutting arm 8 Throttle trigger 22 Rating plate 9 Stop switch 23 Belt tensioner 10 Disconnection function for OilGuard (K760 OilGuard) 24 Cutting head 11 Starter handle 25 Cutting blade (no
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PRESENTATION What is what on the power cutter - K760 Rescue? 1 Front handle 14 Decompression valve 2 Warning decal 15 Air purge 3 Air filter cover 16 Fuel cap 4 Cylinder cover 17 Harness 5 Choke control with start throttle lock 18 Belt guard 6 Throttle lockout 19 Cutting arm 7 Throttle trigger 20 Rating plate 8 Stop switch 21 Belt tensioner 9 Starter handle 22 Cutting head 10 Starter 23 Cutting blade (not supplied) 11 Muffler 24 Combination spanner 12 Adjustment handle for guard 25 Operato
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MACHINE´S SAFETY EQUIPMENT • Check that the throttle trigger and throttle lockout General move freely and that the return springs work properly. WARNING! Never use a machine that has faulty safety equipment! If your machine ! fails any checks contact your service agent to get it repaired. The engine should be switched off, and the stop switch in STOP position. • Start the power cutter and apply full throttle. Release This section describes the machine´s safety equipment, t
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MACHINE´S SAFETY EQUIPMENT Checking the vibration damping system Blade guard WARNING! The engine should be WARNING! Always check that the guard switched off, and the stop switch in is correctly fitted before starting the ! ! STOP position. machine. • Check the vibration damping units regularly for cracks This guard is fitted above the cutting blade and is or deformation. Replace them if damaged. designed to prevent parts of the blade or cutting fragments from being thr
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CUTTING BLADES Cutting blades for different materials General WARNING! Never use a cutting blade for WARNING! A cutting blade may burst any other materials than what it was and cause injury to the operator. ! ! intended to cut. Never use a diamond blade to cut plastic The cutting blade manufacturer issues material. The heat produced during cutting warnings and recommendations for the may melt the plastic and it can stick to the use and proper care of the cutting bl
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CUTTING BLADES Abrasive blades Diamond blades General WARNING! Do not use abrasive blades with water. The strength is impaired ! when abrasive blades are exposed to WARNING! Never use a diamond blade to water or moisture, which results in an cut plastic material. The heat produced ! increased risk of the blade breaking. during cutting may melt the plastic and it can stick to the cutting blade and cause a kickback. • The cutting material on abrasive blades consists of grit bonded usin
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CUTTING BLADES Diamond blades and cooling • During cutting the friction in the cut causes the diamond blade to be heated up. If the blade is allowed to get too hot this can result in loss of blade tensioning or core cracking. Diamond blades for dry cutting • Although no water is required for cooling, dry cutting blades must be cooled with air flow around the blades. For this reason dry cutting blades are recommended only for intermittent cutting. Every few seconds of cutting the blade shou
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ASSEMBLING AND ADJUSTMENTS General Checking the direction of the blade rotation WARNING! The engine should be • When using diamond blades make sure that it rotates switched off, and the stop switch in ! in the direction indicated by the arrow on the blade. STOP position. The direction of rotation for the machine is shown by arrows on the cutting arm. Husqvarna’s blades are high speed blades approved for hand held power cutters. Checking the drive shaft and flange washers When the blade is
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ASSEMBLING AND ADJUSTMENTS Disengaging OilGuard Reversible cutting head The machine is fitted with a reversible cutting head (K760 OilGuard) allowing cutting close to a wall or at ground level, restricted only by the thickness of the blade guard. • When the machine is delivered, the OilGuard plug (A) In the event of a kickback it is harder to control the and the blue indicator pin (B) are fitted in the tank. machine when cutting with the cutting head reversed. The cutting blade is further awa
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FUEL HANDLING Two-stroke oil General K760 WARNING! Running an engine in a • For best results and performance use HUSQVARNA confined or badly ventilated area can ! two-stroke engine oil, which is specially formulated for result in death due to asphyxiation or our air-cooled two-stroke engines. carbon monoxide poisoning. Use fans to ensure proper air circulation when • Never use two-stroke oil intended for water-cooled working in trenches or ditches deeper engines, sometimes referred to as
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FUEL HANDLING Fueling OilGuard (K760 OilGuard) • Machines fitted with OilGuard have a built-in system WARNING! Always stop the engine and for identifying incorrect fuel mixtures. let it cool for a few minutes before ! • Once the machine is running, a detector reads the fuel refuelling. The engine should be quality which takes about ten seconds. If the correct switched off, and the stop switch in amount of Husqvarna OilGuard oil has been used, the STOP position. machine will run at a norma
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OPERATING Protective equipment General safety precautions This section describes basic safety directions for using General 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 Personal protective equipment machine. It is recommended that first time operator
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OPERATING Basic working techniques WARNING! This machine produces an electromagnetic field during operation. ! WARNING! Do not pull the power cutter This field may under some to one side, this can cause the blade to circumstances interfere with active or ! jam or break resulting in injury to people. passive medical implants. To reduce the risk of serious or fatal injury, we Under all circumstances avoid grinding recommend persons with medical using the side of the blade; it will almost i
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OPERATING • Maintain a safe distance from the cutting blade when • Move the blade slowly forwards and backwards to the engine is running. achieve a small contact area between the blade and the material to be cut. This reduces the temperature of • Never leave the machine unsupervised with the motor the blade and ensures effective cutting. 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.
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OPERATING Risk area Before each rescue operation No persons that do not have the protective equipment Check that the blade and the blade guard is not damaged described above shall be allowed inside the risk area for or cracked. Replace the blade or the blade guard if it has thrown material. been exposed to impact or is cracked. • Check that no carbide tips have loosened from the cutting blade. • Check that the blade is not skew or shows signs of cracking or other defects. When cutting in har
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OPERATING Kickback zone Pipe cutting Never use the kickback zone of the blade for cutting. If Special care should be taken when cutting in pipes. If the the blade is pinched or stalled in the kickback zone, the pipe is not properly supported and the cut kept open reactive force will push the power cutter up and back through out the cutting, the blade might be pinched in the towards the user in a rotating motion causing serious or kickback zone and cause a severe kickback. Be even fatal injur
