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Operator’s manual
K950 Chain
Read these instructions carefully and make sure you understand them
English
before using the machine.
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SYMBOL EXPLANATION Symbols on the cut-off saw: Symbols in the Operator's Manual: WARNING! The cut-off saw can be Switch off the engine by moving the stop dangerous! Careless and incorrect use can switch to the STOP position before result in serious or fatal injury to the carrying out any checks or maintenance. operator or others. Please read the instructions carefully and make sure you understand them before using the cut-off saw. Always wear approved protective gloves. Always wear: • Approved p
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CONTENTS List of Contents Before using your new cut-off saw: • Read the Operator’s Manual carefully. Symbol explanation ..................................................... 2 • Check the assembly and adjustment of the cutting chain, see Safety instructions chapter ”Assembly”. • Start the engine and check the carburetor settings. See Personal protective equipment ....................................... 4 chapter ”Maintenance”, section ”Carburetor”. When adjusted The machine’s safety equipment...
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SAFETY INSTRUCTIONS THE MACHINE’S SAFETY WARNING! Incorrect or careless use of a cut-off saw can turn it into a dangerous tool EQUIPMENT ! that can cause serious or even fatal injury. This section describes the cut-off saw’s safety equipment, its It is extremely important that you read and function and how checks and maintenance are carried out to understand this manual. ensure that it operates correctly. WARNING! Never use a cut-off saw with PERSONAL PROTECTIVE EQUIPMENT defective safety equipm
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SAFETY INSTRUCTIONS 3 Muffler Control, maintenance and service of the machine‘s safety equipment WARNING! During use and for some time after the muffler is very hot. Do not touch the WARNING! All service and repairs to the cut- ! muffler if it is hot! off saw require special training. This applies especially to the cut-off saw’s safety ! equipment. If the cut-off saw does not meet The muffler is designed to any of the controls listed below you should give the lowest possible noise contact your s
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SAFETY INSTRUCTIONS 3 Muffler GENERAL SAFETY INSTRUCTIONS Never use a machine that IMPORTANT INFORMATION! has a defective muffler. Do not use the cut-off saw 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 machine’s safety equipment”, should be carried out by trained service specialists. Check regularly that the muffler is secured to the • Use the equipment recommended in th
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SAFETY INSTRUCTIONS GENERAL WORKING INSTRUCTIONS Fuel safety (Filling/Fuel mixture/Storage) This section takes up the basic safety precautions for working with the cut-off saw. Follow these general working instructions, WARNING! Exercise great care when handling but never use a machine without the possibility of calling for fuel. Bear in mind the risk of fire, explosions help in the event of an accident. ! and inhaling fumes. Basic safety precautions • Never fill the machine while IMPORTANT INFO
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SAFETY INSTRUCTIONS Using Cutting WARNING! WARNING! A safe distance from the cut-off Never start the saw without the complete bar saw is 15 metres. You are responsible that ! and chain fitted. animals and onlookers are not in the working ! area. Do not start to work with the cut-off saw before the working area is clear and you Wet cutting have a firm foothold. The diamond chain saw must always be run with water cooling. Dry cutting causes immediate overheating and bar and chain failure with a ri
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SAFETY INSTRUCTIONS Safety Efficient cutting Plan the work so that you do In principle there are two ways to start the process of entering a not get crushed by the bar thick object to be cut. when the pieces fall apart. Planning is also extremely Plunge-cut method important for your own safety! Start by making a 10 centimetre deep cut in the wall using the As it is usually a question of lower part of the tip of the bar. Straighten up the saw at the large and heavy pieces that same time as the ti
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SAFETY INSTRUCTIONS Pull in Water cooling Pull in occurs when the lower part of the chain is suddenly stopped or when the cut closes. (To avoid this see the section WARNING! Water cooling is only used on ”How to avoid kickback” and ”Pinching/rotation” below). petrol driven diamond chain saws when cutting concrete to cool the chain and ! Pinching/rotation increases its service life as well as reducing Pinching occurs when the cut closes. The cut-off saw can be dust (see the section”Cutting equipm
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SAFETY INSTRUCTIONS Use the saw the right way up CUTTING EQUIPMENT For reasons of safety the saw must never be used upside down. Parts worn loose from the cut object or damaged chain parts CAUTION! Chain breakage can result in serious injury if can be thrown towards the operator. the chain is thrown towards the operator. Do not cut any material other than what the machine is intended for The diamond chain saw is only intended for cutting concrete, stone, brick and similar material. The saw must
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WHAT IS WHAT? What is what on the machine? 1. Cylinder cover 14. Air filter cover 2. Muffler 15. Hand guard 3. Fuel tank 16. Starter handle 4. Starter throttle catch 17. Operator’s manual 5. Choke 18. Water adjustment valve 6. Throttle trigger lockout 19. Front handle 7. Stop switch 20. Starter 8. Bar and chain 21. Decompression valve 9. Water hose, quick connection 22. Rear handle 10. Chain tensioning handle 23. Warning decal 11. Counter screw 24. Type plate 12. Throttle control 25 Allen key 13
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ASSEMBLY How to change the chain and rim How to tension the chain Press the spring down into the chain tensioner handle and Untensioned chain. turn the nut anti-clockwise. Unscrew the adjusting nut. Start with opening the adjust screw cover. Pull the handle backwards. Remove the cover. Remove the bar and chain. Continue to move the handle down-wards until you start to tension the chain. Remove the spring holding the two "half-moons" using a screwdriver. Hold the bar upwards as you move the handl
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ASSEMBLY How to change the clamping force of the bar Check weather the handle feel loose. Move the lever to its rear, lower position. Press in the lever’s spring and turn the adjusting nut clockwise. After adjustment, the chain tensioner handle should point nearly straight up (see figure) when it is moved as far as possible clockwise. NOTICE! During all reassembling, make sure that the outer cover fits in to the inner cover, the covers may be damaged otherwise. 14 – English
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FUEL HANDLING Fuelmix Fuelling IMPORTANT! The machine is equipped with a two-stroke engine and must always been run using a mixture of gasoline WARNING!The following precautions reduce and two-stroke engine oil. It is important to accurately measure the risk of fire: ! the amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small • Do not smoke or place any sources of heat in inaccuracies can drastically affect the ratio of the mixtur
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START AND STOP Start and stop Wet cutting The diamond chain saw must always be run with water cooling. Dry cutting causes immediate overheating and bar and chain WARNING! Before starting observe the failure with a risk of personal injury. In addition to cooling the following: ! bar and chain, the flow of water pushes particles away from the bar and the drive links. As a result it is important with a high • Do not start the cut-off saw without the water pressure. The water pressure should be at l
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MAINTENANCE Carb Carburetor uretor Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. After your unit has been run 8-10 tanks of fuel the engine has broken in. To ensure that your unit is at peak performance and producing the least amount of harmful emissions after break in, have your authorized servicing dealer, who has a revolution counter at his disposal, to check your carburetor for optimum operating conditions. Functioning, Final setti
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MAINTENANCE Fuel filter • The fuel filter sits inside the fuel tank. • The fuel tank must be protected from contamination when filling. This reduces the risk of operating disturbances caused by blockage of the fuel filter. • The filter cannot be cleaned but must be replaced with a new filter when it blocked. The filter should be changed at least once per year. Air filter The air filter should be cleaned regularly removing dust and dirt to avoid: 2 • Carburettor malfunction 1 • Starting problems
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MAINTENANCE Tensioning the recoil spring Starter WARNING! • Lift up the starter cord from • The recoil spring sits in its tensioned posi the cut out on the pulley and ! tion in the starter housing and can with turn the pulley approx. 2 careless handling fly out and cause personal turns clockwise. injury. • When replacing the recoil spring or the NOTE! Ensure the starter starter cord great care should be exercised. pulley can be turned at least Always wear protective glasses. a further 1/2 turn w
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MAINTENANCE Ignition system Cooling system To maintain as low an operating temperature as possible the cut-off saw is equipped with a cooling system. IMPORTANT INFORMATION! This cut-off saw has a green coloured ignition system The cooling system consists of: with integrated speed governor (order no. 506 02 73-04). The machine may only be used with such a green 1. An air intake on the coloured ignition system to prevent the risk of over starter unit. revving. 2. Air flow guide. 5 3. Cooling fins
