Husqvarna K650 - Manual

English – 5 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...

6 – English SAFETY INSTRUCTIONS General safety precautions Work area safety • Keep work area clean and well lit. Cluttered or dark areas invite accidents. • Never use the machine indoors. Be aware of the dangers of inhaling the engine’s exhaust fumes. • Do not use the machine in bad weather, such as...

English – 7 SAFETY INSTRUCTIONS Fuel safety (Refuelling/Fuel mixture/Storage.) • 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 po...

8 – English SAFETY INSTRUCTIONS CAUTION! Never use a machine that has a faulty muffler. 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 ...

English – 9 SAFETY INSTRUCTIONS 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 lo...

10 – English SAFETY INSTRUCTIONS Blade vibrations 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. The blades shall be intended ...

English – 11 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”. • Always cut from top to bottom (A). Remove the cutter and use a cr...

12 – English 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. • ...

English – 13 ASSEMBLY Assembling the blades 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. • Loosen the bar nuts, unscrew the clamping screw anticlockwise a few tu...

14 – English FUEL HANDLING Fuel 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. When mixing sm...

English – 15 STARTING AND STOPPING Before starting Water connector Connect the water hose to the water supply. The water flow is regulated using the water tap. Starting a cold engine Decompression valve: Press in the valve to reduce the pressure in the cylinder, this is to assist starting the power ...

16 – English 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 ...

English – 17 MAINTENANCE • Pull off the cutting arm by pulling it straight forwards, as illustrated. • Remove the complete drive belt (D). • Loosen the six screws (F) holding the guards on the cutting arm. • Fit the new drive belt (K). • Refit the guards and belt cover. • The bar (M) must be positio...

18 – English MAINTENANCE Air filter 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. The air filter system consists of an oiled foam plastic fi...

English – 19 MAINTENANCE Starter Changing a broken or worn starter cord • Loosen the filter and cylinder cover. • Loosen the screws that hold the starter against the crankcase and remove the starter. • Pull out the cord approx. 30 cm (12 inches) and hook it into the notch in the rim of the pulley. R...

20 – English MAINTENANCE Changing a broken recoil spring • Undo the bolt in the centre of the pulley and remove the pulley. • Bear in mind that the return spring lies tensioned in the starter housing. • Loosen the bolts holding the spring cassette. • Remove the recoil spring by turning the starter o...

English – 21 MAINTENANCE Cooling system To keep the working temperature as low as possible the machine is equipped with a cooling system. The cooling system consists of: 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 ...

22 – English TECHNICAL DATA ´®z+SNQ¶5[¨ ´®z+SNQ¶5[¨ Technical data Cutting equipment Max. blade speed, rpm 6200 K650 Cut-n-break Engine Cylinder displacement, cu.in/cm 3 71 Cylinder bore, inch/mm 1,97/50 Stroke, inch/mm 1,42/36 Idle speed, rpm 2500 Recommended max. speed, rpm 9750 (+/- 250) Power, k...

English – 23 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 2001 and later small nonroad eng...