Operator’s manual (EPA) K650 Cut-n-Break Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
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. Always wear: • Protective helmet • Hearing protection • Protective goggles or a visor • Breathing mask WARNING! Dust forms when cutting, this can cause injuries if inhaled.
CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: ............................................. Symbols in the operator’s manual: ............................... CONTENTS Contents ...................................................................... WHAT IS WHAT? What is what on the power cutter? ............................... SAFETY INSTRUCTIONS Steps before using a new power cutter ........................ Personal protective equipment .....................................
WHAT IS WHAT? HUSQVARNA CONSTRUCTION PRODUCTS What is what on the power cutter? 1 Operator’s manual (EPA) 12 Starter handle 2 Combination spanner 13 Starter 3 Air filter cover 14 Decompression valve 4 Front handle and water tap 15 Muffler 5 Warning decal 16 Splash guard 6 Choke 17 Blades 7 Stop switch 18 Blade guards 8 Start throttle lock 19 Belt tensioner 9 Throttle lockout 20 Cutting arm 10 Type plate 21 Fuel tank 11 Cylinder cover 22 Throttle control 4 – English
SAFETY INSTRUCTIONS Steps before using a new power cutter • Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. • The machine is only designed for cutting hard materials, such as concrete, brick, masonry as well as cast iron and cement pipes. • Check the assembly and adjustment of the blades, see the instructions under the heading Assembly of blades.
SAFETY INSTRUCTIONS General safety precautions ! WARNING! Do not use the power cutter until you have read the entire contents of this Operator’s Manual. All servicing, in addition to the points listed in the section ”Control, maintenance and service of the power cutter’s safety equipment”, should be carried out by trained service specialists. Personal safety • Wear personal protective equipment. See instructions under the heading Personal protective equipment.
SAFETY INSTRUCTIONS Fuel safety (Refuelling/Fuel mixture/Storage.) ! WARNING! Take care when handling fuel. Bear in mind the risk of fire, explosion and inhaling fumes. • Never refuel the machine while the engine is running. • Make sure there is plenty of ventilation when refuelling or mixing fuel (gasoline and 2-stroke oil). • Move the machine at least 10 ft (3 m) from the refuelling point before starting it.
SAFETY INSTRUCTIONS CAUTION! Never use a machine that has a faulty muffler. ! WARNING! The exhaust fumes from the engine are hot and may contain sparks which can start a fire. Never start the machine indoors or near combustible material! Checking, maintaining and servicing the machine′′s safety equipment ! IMPORTANT! For mufflers it is very important that you follow the instructions on checking, maintaining and servicing your machine.
SAFETY INSTRUCTIONS Throttle lockout • Diamond blades Make sure the throttle control is locked at the idle setting when the throttle lockout is released. ! WARNING! Blades can break and cause serious injuries to the user. Never use blades other than original blades designed for the machine. • Never use blades on a material other than the one they are intended for. Press the throttle lockout and make sure it returns to its original position when you release it.
SAFETY INSTRUCTIONS Blade vibrations General working instructions The blades can become out of true and vibrate if a too high feed pressure is used. A lower feed pressure can stop the vibration. Otherwise replace the blades. See the instructions under the heading Assembling the blades. IMPORTANT! This section describes basic safety directions for using a power cutter. This information is never a substitute for professional skills and experience.
SAFETY INSTRUCTIONS • Cut in the same direction when cutting into an existing cut. Avoid cutting at an angle to the previous cut otherwise there is a risk of the blade jamming or that the machine can ”climb in the cut”. • The blade guards are designed to easily adapt to how deep in the work piece the power cutter is moved. ! • Always cut from top to bottom (A). Remove the cutter and use a crowbar to remove the material that remains between the cut (B).
SAFETY INSTRUCTIONS General rules • Never cut upwards or towards you so that the kickback zone becomes actively cutting. • Always hold the machine in a firm grip with both hands. Hold it so that the thumbs and fingers grip round the handles. • Keep a good balance and a firm foothold. • When cutting vertically, always cut from the top of the cut and down. • Always cut at full throttle. • Do not cut with the upper quadrant (kickback zone) of the blade.
ASSEMBLY Assembling the blades Protection for the blades • The guards should always be fitted on the machine. Check that the guards are properly secured and work before starting to cut. Husqvarna blades are especially manufactured and approved for freehand cutting with the K650 Cut-n-Break. The blades have integrated belt pulley halves and are to be changed in pairs.
FUEL HANDLING Fuel • Mix (shake) the fuel mixture thoroughly before filling the machine’s fuel tank. • Do not mix more than one month’s supply of fuel at a time. • If the machine is not used for some time the fuel tank should be emptied and cleaned. CAUTION! The machine is equipped with a two-stroke engine and must always been run using a mixture of gasoline and two-stroke engine oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained.
STARTING AND STOPPING Before starting ! WARNING! Note the following before starting: Starting a warm engine Use the same starting procedure as for a cold engine but without setting the choke control in the choke position. Do not start the power cutter without the clutch cover fitted. Otherwise the clutch could come loose and cause personal injuries. Always move the machine away from the refuelling area before starting.
MAINTENANCE Inspecting and adjusting the drive belt • The drive belt is fully enclosed and well-protected from dust, dirt and mechanical damage when cutting. • Check the drive belt adjustment by feeling with your fingers as illustrated. A correctly adjusted drive belt should have about 5 mm of movement. • To adjust the drive belt, loosen both the screws (A) holding the bar one turn anticlockwise.
MAINTENANCE • Pull off the cutting arm by pulling it straight forwards, as illustrated. • Refit the blades and tighten the nut. See instructions under Heading ”Assembling the blades”. CAUTION! Make sure that the belt adjuster screw bottoms and that the bar is fully screwed back so that the belt cover fits correctly. Belt pulley and clutch Never start the engine when the belt pulley and clutch have been removed.
MAINTENANCE Air filter off the excess before fitting the filter to the machine. Never use common engine oil. This would drain through the filter quite quickly and collect in the bottom. Air filters must be regularly cleaned to remove dust and dirt in order to avoid: • Carburettor malfunctions • Starting problems • Less power • Unnecessary wear to engine parts • Excessive fuel consumption.
MAINTENANCE Starter ! • 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. • Guide the cord through the cut-out in the periphery of the pulley and wind the cord 3 times clockwise around the centre of the starter pulley. • Now pull the starter handle and in doing so tension the spring. Repeat the procedure once more, but this time with four turns.
MAINTENANCE Changing a broken recoil spring Spark plug • Undo the bolt in the centre of the pulley and remove the pulley. The spark plug condition is influenced by: • Bear in mind that the return spring lies tensioned in the starter housing. • Loosen the bolts holding the spring cassette. • Incorrect carburetor adjustment. • Wrong fuel mixture (too much oil). • A dirty air filter.
MAINTENANCE Cooling system General maintenance instructions To keep the working temperature as low as possible the machine is equipped with a cooling system. The cooling system consists of: Below you will find some general maintenance instructions. If you have more questions, contact your service agent. Daily maintenance 1 Air intake on the starter. 2 Air guide plate. 3 Fins on the flywheel. 4 Cooling fins on the cylinder. 5 Cylinder cover (directs cold air over the cylinder).
TECHNICAL DATA Technical data K650 Cut-n-break Engine Cylinder displacement, cu.in/cm3 71 Cylinder bore, inch/mm 1,97/50 Stroke, inch/mm 1,42/36 Idle speed, rpm 2500 Recommended max.
FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS regarding your warranty rights and responsibilities, you should contact your nearest authorized servicing dealer or call Husqvarna Construction Products, at 1-800-323 3553. The EPA (The US Environmental Protection Agency), Environment Canada and Husqvarna Construction Products are pleased to explain the emissions control system warranty on your 2001 and later small nonroad engine. In U.S.
! WARNING! Cutting, especially when DRY cutting, generates dust that comes from the material being cut, which frequently contains silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous other minerals and rocks. Exposure to excessive amount of such dust can cause: Respiratory disease (affecting your ability to breath), including chronic bronchitis, silicosis and pulmonary fibrosis from exposure to silica. These diseases may be fatal; Skin irritation and rash.
