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268K/272K
Operator’s Manual
Read through the Operator’s Manual carefully and
understand the contents before you use the power
cutter.
101 87 70-27
Svenska – 1
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SYMBOL EXPLANATION Symbols on the power cutter: WARNING! The power cutter can be dangerous! Careless and incorrect use can result in serious, even fatal injury. Read through the Operator's Manual carefully and understand the contents before you use the power cutter. Always use: • A protective helmet • Ear protection • Protective glasses or full face protection Symbols in the Operator's Manual: Checks and/or maintenance shall be carried out with the engine switched off, with the stop switch in th
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CONTENTS Before using your new Power cutter List of Contents • Read the Operator’s Manual carefully. Symbol explanation ....................................... 2 • Check the assembly and adjustment of the cutting disc, see Safety instructions chapter ”Assembly”. • Start the engine and check the carburettor settings. See Personal safety equipment ..................................... 4 chapter ”Maintenance”, section ”Carburettor”. When adjusted The power cutter’s safety equipment ................
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SAFETY INSTRUCTIONS THE POWER CUTTER’S SAFETY WARNING! Incorrect or careless use of a power cutter can turn it into a dangerous tool EQUIPMENT ! that can cause serious or even fatal injury. It This section describes the power cutter’s safety equipment, its 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. (See the chapter “What is what“ to locate where this equipment is positioned on your
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SAFETY INSTRUCTIONS 3 Silencer Control, maintenance and service of the machine‘s safety equipment WARNING! During use and for some time after the silencer is very hot. Do not touch the WARNING! All service and repairs to the ! silencer if it is hot! power cutter require special training. This applies especially to the power cutter’s safety ! equipment. If the power cutter does not meet The silencer is designed to any of the controls listed below you should give the lowest possible noise contact
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SAFETY INSTRUCTIONS 3 Silencer GENERAL SAFETY INSTRUCTIONS Never use a machine that has a defective silencer. IMPORTANT INFORMATION! 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. • Use the equipment recommended in the chapter ”Personal safety equipment”. • Ne
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SAFETY INSTRUCTIONS GENERAL WORKING INSTRUCTIONS Fuel safety This section takes up the basic safety precautions for working (Filling/Fuel mixture/Storage) with the power cutter. Follow these general working instructions, but never use a machine without the possibility of calling for WARNING! Exercise great care when handling help in the event of an accident. fuel. Bear in mind the risk of fire, explosions ! and inhaling fumes. Basic safety precautions IMPORTANT INFORMATION! Never work with a pow
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SAFETY INSTRUCTIONS Water cooling Over exposure to vibrations can result in blood-vessel or nerve injury to persons WARNING! Water cooling, which is only used ! suffering with blood circulation problems. for petrol-driven power cutters and when Seek medical attention if you experience cutting concrete, cools the cutting disc and physical symptoms that can be related to over ! increases its service life as well as reduce exposure to vibrations. Examples of such dust formation (see the section ”Ab
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SAFETY INSTRUCTIONS Pull in Care and storage Pull in occurs when the lower part of the disc is suddenly stopped or when the cut closes. (To avoid this see the section General ”How to avoid kickback” and ”Pinching/rotation” below). Husqvarna’s power cutters are robust and durable. However, as Pinching/rotation they are used for high speed operations all servicing should be carried out on time and as specified, so that the power cutter Pinching occurs when the cut closes. The power cutter can be a
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SAFETY INSTRUCTIONS Abrasive discs CUTTING DISCS AND BLADES The cutting material in an abrasive disc consists of abrasive corn that is held together by an organic bonding agent. ”Reinforced discs” are made up of a fabric or fibre base that prevents total breakage at maximum working speed if the disc should be cracked or damaged. (The term reinforced does not refer to those cutting discs that are only reinforced around the flange). A cutting disc’s performance is determined by the type and size o
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SAFETY INSTRUCTIONS Guard Cutting discs Check that the guard is not crack or shows signs of any other damage. Clean the Type of cutting discs inside of the guard before Check that the disc is fitting a new disc. Check that approved for high speed, the guard can be adjusted and portable power cutters. Do not 100 m/s locked. exceed the maximum working speed stated on the disc. 6300 rpm Diamond discs Damage • Ensure the disc it not Diamond discs are basically made in the same way as abrasive cracke
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WHAT IS WHAT? 21 13 15 2 6 17 13 7 24 22 23 3 20 8 4 10 9 1 16 18 19 5 11 12 14 What is what on a power cutter? 1. Cutting trolley 13. Throttle 2. Upper guide section 14. Combination spanner 3. Locking lever for upper guide section 15. Air filter cover 4. Fuel tank 16. Disc guard 5. Splash guard 17. Starter handle 6. Choke 18. Support wheel 7. Throttle catch 19. Operator’s Manual 8. Stop switch 20. Adjustment lever for the disc guard 9. Cutting head 21 Front handle 10. Cutting arm 22. Starter 11
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ASSEMBLY Fitting the cutting head Fitting the cutting disc Husqvarna cutting discs are manufactured and approved Undo both nuts (1) on the for freehand cutting. The cutting arm and the bolts (2). paper labels on each side of Remove the cutting arm and fit the disc are there to distribute the drive belt on the clutch the pressure from the flange drum. Replace the cutting arm washer and prevent the disc in position. Tighten the nuts from slipping. and bolts. The disc is placed between the flange h
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FUEL HANDLING Fuel mixture Fuelling WARNING! the power cutter is fitted with a WARNING!The following precautions reduce two-stroke engine and must always be run on the risk of fire: ! ! a mixture of petrol and two-stroke oil. To ensure the correct mixture proportions it is • Do not smoke or place any sources of heat in the important to measure the quantity of oil vicinity of the fuel. accurately. When mixing small amounts of • Never refuel when the engine is running. fuel small discrepancies in
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START AND STOP Start Start and stop WARNING! Before starting observe the WARNING! The cutting disc can rotate when following: the engine starts. Make sure it can rotate ! ! freely. • Do not start the power cut without the cutting arm or Take hold of the front handle cutting head fitted. Otherwise the clutch can come using your left hand. Place loose and cause personal injury. your right foot on the lower • Always move the power cutter from the filling area section of the rear handle and before s
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MAINTENANCE Adjusting the drive belt • The drive belt is fully enclosed and well protected from dust, dirt and A mechanical effects during the cutting process. • To tension the drive belt, slightly loosen the nuts (A), which secure the cutting head and belt guard. • Turn the tensioning screw so that the nut (B) is located B directly under the arrow on the cover. Shake the head to ensure the spring can tension the belt. The belt now automatically has the right tension. • Tighten the nuts that hol
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MAINTENANCE Fine tuning Carburettor • When the machine has been run-in the carburettor is finely Operation, Basic settings, Fine tuning tuned. Fine tuning should be carried out by trained personnel. The L-needle is adjusted first, then the idling screw T and finally the H-needle. The following speed WARNING! The power cutter must be correctly recommendations apply: assembled with cutting arm and cutting head Max. speed Idling speed before you start (See chapter ”Assembly”.) ! 10,000 rpm 2,500 rp
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MAINTENANCE High speed needle H Fuel filter • The carburettor is equipped • The fuel filter sits inside the fuel tank. with an automatic speed governor, which prevents a • The fuel tank must be protected from contamination when too high peripheral speed filling. This reduces the risk of operating disturbances caused on the cutting disc. At full by blockage of the fuel filter. throttle with a unloaded cutting disc distinctive • The filter cannot be cleaned but must be replaced with a new variatio
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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
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MAINTENANCE Spark plug Cooling system To maintain as low an operating temperature as possible the power cutter is equipped with a cooling system. The condition of the spark plug is affected by: The cooling system consists of: • An incorrect carburettor setting. 1. An air intake on the 0,5 mm • An incorrect fuel mixture starter unit. (too much oil). • A dirty air filter. 5 2. Air flow guide. These factors cause deposits 3. Cooling fins on the on the spark plug electrode flywheel. 4 that may resu
