Operator’s manual K950 Chain Read these instructions carefully and make sure you understand them before using the machine.
SYMBOL EXPLANATION Symbols on the cut-off saw: WARNING! The cut-off saw can be dangerous! Careless and incorrect use can result in serious or fatal injury to the operator or others. Please read the instructions carefully and make sure you understand them before using the cut-off saw. Symbols in the Operator's Manual: Switch off the engine by moving the stop switch to the STOP position before carrying out any checks or maintenance. Always wear approved protective gloves.
CONTENTS List of Contents Before using your new cut-off saw: • Read the Operator’s Manual carefully. • Check the assembly and adjustment of the cutting chain, see chapter ”Assembly”. • Start the engine and check the carburetor settings. See chapter ”Maintenance”, section ”Carburetor”. When adjusted correctly the cutting chain should not rotate when idling. Setting the idling speed is described in the Operator’s Manual. Adjust the speed according to these instructions.
SAFETY INSTRUCTIONS ! WARNING! Incorrect or careless use of a cut-off saw can turn it into a dangerous tool that can cause serious or even fatal injury. It is extremely important that you read and understand this manual. PERSONAL PROTECTIVE EQUIPMENT ! WARNING! When using a cut-off saw, approved protective equipment must be used. Personal protective equipment does not eliminate the risk of accidents, however, it can reduce the effects of an injury in the event of an accident.
SAFETY INSTRUCTIONS 3 Muffler ! WARNING! During use and for some time after the muffler is very hot. Do not touch the muffler if it is hot! The muffler is designed to give the lowest possible noise level and to direct the engine‘s exhaust fumes away from the user. The engine‘s exhaust fumes are hot and can contain sparks, which can lead to the outbreak of fire.
SAFETY INSTRUCTIONS 3 Muffler Never use a machine that has a defective muffler. Check regularly that the muffler is secured to the engine body. GENERAL SAFETY INSTRUCTIONS IMPORTANT INFORMATION! 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.
SAFETY INSTRUCTIONS GENERAL WORKING INSTRUCTIONS Fuel safety (Filling/Fuel mixture/Storage) ! WARNING! Exercise great care when handling fuel. Bear in mind the risk of fire, explosions and inhaling fumes. Basic safety precautions • Never fill the machine while the engine is running. • Provide good ventilation when filling or mixing fuel (gasoline and 2-stroke oil). • Move the machine at least 3 m from the filling position before starting. • Never start the machine: a) If you have spilt fuel on it.
SAFETY INSTRUCTIONS Using ! Cutting WARNING! Never start the saw without the complete bar and chain fitted. ! Wet cutting The diamond chain saw must always be run with water cooling. Dry cutting causes immediate overheating and bar and chain failure with a risk of personal injury. In addition to cooling the 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 water pressure. The water pressure should be at least 2.
SAFETY INSTRUCTIONS Safety Plan the work so that you do not get crushed by the bar when the pieces fall apart. Planning is also extremely important for your own safety! As it is usually a question of large and heavy pieces that are cut when using the diamond chain saw the forces are so great that jamming can result in irreparable damage to both the bar and chain. Efficient cutting In principle there are two ways to start the process of entering a thick object to be cut.
SAFETY INSTRUCTIONS Water cooling ! WARNING! Water cooling is only used on petrol driven diamond chain saws when cutting concrete to cool the chain and increases its service life as well as reducing dust (see the section”Cutting equipment”). Among the disadvantages are difficulties at very low temperatures, the risk of damaging the floor and other sections of the building and risk for slippage.
SAFETY INSTRUCTIONS CUTTING EQUIPMENT CAUTION! Chain breakage can result in serious injury if the chain is thrown towards the operator. Use the saw the right way up For reasons of safety the saw must never be used upside down. Parts worn loose from the cut object or damaged chain parts can be 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.
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.
ASSEMBLY How to tension the chain How to change the chain and rim Untensioned chain. Press the spring down into the chain tensioner handle and turn the nut anti-clockwise. Unscrew the adjusting nut. Start with opening the adjust screw cover. Pull the handle backwards. Continue to move the handle down-wards until you start to tension the chain. Remove the cover. Remove the bar and chain. Remove the spring holding the two "half-moons" using a screwdriver.
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.
FUEL HANDLING Fuelmix IMPORTANT! 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 small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture. ! Always provide for good ventilation when handling fuel. Petrol • Use good quality unleaded or leaded petrol.
START AND STOP Start and stop ! WARNING! Before starting observe the following: • Do not start the cut-off saw without the guide bar, chain and side cover fitted. Otherwise the clutch can come loose and cause personal injury. • Always move the cut-off saw from the filling area before starting. • Ensure that you and the machine stand firmly and that the cutting chain can rotate freely. • Make sure no unauthorised persons are within the working area.
MAINTENANCE Carburetor 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.
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.
MAINTENANCE Starter ! Tensioning the recoil spring WARNING! • The recoil spring sits in its tensioned posi tion in the starter housing and can with careless handling fly out and cause personal injury. • When replacing the recoil spring or the starter cord great care should be exercised. Always wear protective glasses. Replacing a broken or worn starter cord • Lift up the starter cord from the cut out on the pulley and turn the pulley approx. 2 turns clockwise.
MAINTENANCE Ignition system Cooling system IMPORTANT INFORMATION! This cut-off saw has a green coloured ignition system with integrated speed governor (order no. 506 02 73-04). The machine may only be used with such a green coloured ignition system to prevent the risk of over revving. To maintain as low an operating temperature as possible the cut-off saw is equipped with a cooling system. The cooling system consists of: 1. An air intake on the starter unit. 2. Air flow guide. 3.
MAINTENANCE Below follows some general maintenance instructions. If you need further information please contact your service workshop. Daily maintenance 1. Check that throttle components work correctly from a safety view point (throttle and starter throttle catch). 2. Clean the main filter. 3. Check the sprocket. 4. Check the condition of the bar. 5. Check the condition of the cutting chain. 6. Check the starter and the starter cord; clean the outside of the starter’s air intake. 7.
TECHNICAL DATA K950 Chain Engine Cylinder volume, cm3/cu.in Cylinder bore, mm/inch Stroke, mm/inch Idle speed, rpm Recommended max. speed, unloaded, rpm Power, kW 93,6/5,7 ∅ 56/2,2" 38/1,5" 2 500 rpm 9 750 ± 250 4,5 Ignition system Manufacturer Type of ignition system Spark plug Electrode gap, mm/inch FHP CD NGK BPMR 7A 0,5 (.
TECHNICAL DATA EU declaration of conformity (Only applies to Europe) Husqvarna Construction Products, SE-433 81 Partille, Sweden, tel: +46-31949000, declare under sole responsibility that the cut-off saw Husqvarna K950 Chain from 2006’s serial numbers and onwards (the year is clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the following standards or other normative documents following the provisions in the COUNCIL’S DIRECTIVES: - of June 22 1998 “relatin
115 02 90-26 ´®z+R="¶6%¨ ´®z+R="¶6%¨ 2006-12-18
