Oper ator ′ s manual K650 Cut-n-br eak Please r ead the operator’s manual carefully and make sure you E E E E n n n n g g g g l l l l i i i i s s s s h h h h understand the instructions before using the machine.
KEY T O SYMBOLS Symbols on the mac hine: Symbols in the operator’ s manual: W ARNING! The machine can be a Switch off the engine b y moving the stop dangerous tool if used incorrectly or switch to the STOP position before carrying carelessly, which can cause serious or fatal out any checks or maintenance.
CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: ..........2 Symbols in the operator’s manual: ........ 2 CONTENTS Contents ............... 3 WHA T IS WHAT? What is what on the po wer cutter? ........ 4 SAFETY INSTR UCTIONS Steps bef ore using a new power cutter......5 SAFETY INSTR UCTIONS P ersonal protective equipment ........
WHA T IS WHA T? HUSQVARNA CONSTRUCTION PRODUCTS What is what on the po wer cutter? 1 Operator ′ s manual 12 Starter handle 2 Combination spanner 13 Starter 3 Air ﬁlter cover 14 Decompression valve 4 Front handle and water tap 15 Mufﬂer...
Operator’s Manual. Set the correct speed according to these instructions. Do not use the power cutter if the idle speed is not adjusted correctly! • Let your Husqvarna dealer regularly check the power cutter and make essential adjustments and repairs. • Breathing mask W ARNING! Under no circumstances may the design of the machine be modiﬁed without...
SAFETY INSTR UCTIONS Mac hine ′ ′ ′ ′ s safety equipment Mufﬂ er This section descr ibes the machine ′ s safety equipment, its W ARNING! The mufﬂer gets very hot in use purpose, and how checks and maintenance should be carried and remains so for a short time afterwards.
SAFETY INSTR UCTIONS Pr otection for the blades Stop s witch Star t the engine and make sure the engine stops when you move the stop switch to the stop setting. WARNING! Always check that the blade guards are correctly ﬁtted before starting the machine.
SAFETY INSTRUCTIONS Throttle lockout General safety precautions • Make sure the throttle control is locked at the idle setting • A power cutter is designed to cut hard materials, such as when the throttle lockout is released. masonry. Observe the increased risk of kickback when cutting soft materials.
Always ensure you have a safe and stable working out where to dispose of excess fuel. position. • Always use a Husqvarna fuel container with an anti-spill • Make sure that no pipes or electrical cables are routed in valve.
SAFETY INSTRUCTIONS Cutting • Make a saw cut from above and down (A). Remove the cutter and use a crowbar to remove the material that remains between the cut (B). WARNING! The safety distance for the power cutter is 15 metres. You are responsible to ensure that animals and onlookers are not within the working area.
SAFETY INSTRUCTIONS Cutting sequence General rules First make the lower horizontal cut. Now make the two vertical • Never start the power cutter with the upper quadrant of the cuts. Finish with the upper horizontal cut. blades as illustrated, i.e. in the kickback zone. CAUTION! If the upper horizontal cut is made before the lower horizontal cut, the work piece will fall on the blades jamming them.
SAFETY INSTRUCTIONS Blades 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. WARNING! Cutting plastics with diamond blades can cause kickback when the material melts, due to the heat produced when cutting, and sticks to the blades.
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.
• Do not mix more than one month’s supply of fuel at a time. • For best results and performance use HUSQVARNA two- stroke engine oil, which is specially formulated for our air- • If the machine is not used for some time the fuel tank cooled two-stroke engines.
STARTING AND STOPPING Starting and stopping Starting a warm engine Use the same starting procedure as for a cold engine but without setting the choke control in the choke position. WARNING! Note the following before starting: Do not start the power cutter without the clutch cover ﬁtted.
MAINTENANCE Inspecting and adjusting the drive • Remove the blades. 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 • Remove the clutch cover by loosening the screws A and B. ﬁngers as illustrated.
Never start the engine when the belt pulley and clutch have been removed. Carburettor Your Husqvarna product has been designed and manufactured to speciﬁcations that reduce harmful emissions. Function The carburettor governs the engine speed via the throttle. Air and fuel are mixed in the carburettor.
ﬁlter must be replaced regularly or cleaned and oiled. A • The ﬁlter cannot be cleaned but must be replaced with a special HUSQVARNA oil has been produced for this new ﬁlter when it is clogged. The ﬁlter should be purpose.
MAINTENANCE Starter • 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. 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.
MAINTENANCE Fitting the starter Cooling system • To ﬁt the starter, ﬁrst pull out the starter cord and place the starter in position against the crankcase. Then slowly release the starter cord so that the pulley engages with the pawls. To keep the working temperature as low as possible the machine is equipped with a cooling system.
MAINTENANCE General maintenance instructions Below you will ﬁnd some general maintenance instructions. If you have more questions, contact your service agent. Daily maintenance 1 Check that the components of the throttle control work smoothly (throttle control and throttle trigger lock). 2 Clean the outside of the machine.
TECHNICAL DATA Technical data K650 Cut-n-break Engine Cylinder displacement, cm Cylinder bore, mm Stroke, mm Idle speed, rpm 2500 Recommended max. fast idle speed, rpm 9750±250 Power, kW Ignition system Manufacturer of ignition system Spark plug Champion RCJ 6Y/ NGK BPMR 7A...
Husqvarna Construction Products, SE-433 81 Partille, Sweden, tel: +46-31-949000, declares under sole responsibility that the power cutter K650 Cut-n-Break from 2006’s serial numbers and onwards (the year is clearly stated in plain text on the rating plate with subsequent serial number), complies with the requirements of the COUNCIL’S DIRECTIVES: •...
1150286-26 ´®z+R<^¶6S¨ ´®z+R<^¶6S¨ 2006-11-01...