Husqvarna 250PS manuale d’uso

114 00 07-26 250PS Operator's manual Read these instructions carefully and make sure you understand them before using the saw.[...]

2 – English Symbols S witch off the engine by moving the stop switch to the ST OP position before carrying out any checks or maintenance. Always wear appro ved protective gloves. Regular cleaning is r equired. Visual check. Appro ved eye protection must always be used. KEY T O SYMBOLS Always wear: • Safety helmet • Hearing protection • Appr[...]

English – 3 CONTENTS SYMBOL EXPLANA TION Symbols ................................................................................. 2 CONTENTS Contents ................................................................................ 3 SAFETY INSTRUCTIONS P ersonal protective equipment ............................................... 4 The machine&a[...]

4 – English The machine's safety equipment This section describes the machine's safety equipment, its function and how checks and maintenance are carried out to ensure that it operates correctly . (See the chapter "What is what" to locate where this equipment is positioned.) Personal protective equipment GLO VES Gloves should [...]

English – 5 5. Silencer The silencer is designed to give the lowest possible noise level and to direct the engine's exhaust fumes away from the operator . 4. Vibration damp- ing system Y our machine is equipped with a vibration damping system, which is designed to give as vibration-fr ee and comfortable use as possible. The machine ’ s vib[...]

6 – English Control, maintenance and service of the machine's safety equipment 1. Throttle trigger lock • Check that the throttle is locked in the "idling position" when the throttle trigger lock is in its original position. • P ress in the throttle trigger lock and make sure it r eturns to its original position when released. [...]

English – 7 A. Only use cutting equipment recommended by us! See the ” T echnical data ” section. B. Keep the chain cutting teeth properly sharpened! F ollow our instructions and use the recommended file gauge. A damaged or badly sharpened chain increases the risk of accidents. C. Maintain the correct raker clearance! F ollow our instructions[...]

8 – English SAFETY INSTRUCTIONS Sharpening your chain and adjusting raker clearance W ARNING! The risk of kickback is increased with a badly sharpened chain! Specification of blade and chain When the cutting equipment supplied with your saw becomes worn or damaged you will need to r eplace it. Use only the type of bar and chain recommended by us.[...]

English – 9 SAFETY INSTRUCTIONS I t is very difficult to sharpen a chain correctly without the right equipment. W e recom- mend you to use a file gauge. This will help you obtain the maximum kickback reduction and cutting performance from your chain. C. General advice on setting raker clearance W ARNING! The risk of kickback is increased if the r[...]

10 – English SAFETY INSTRUCTIONS D. Correction of raker clearance Chain lubrication W ARNING! A slack chain may jump off and cause serious or even fatal injury . A. Checking • Check the chain lubrication each time the petrol is replenished. Aim the tip of the saw at a light coloured surface about 20 cm away . After 1 minute running at 3/4 throt[...]

English – 11 SAFETY INSTRUCTIONS W ARNING! Defective cutting equipment can increase the risk for accidents. Check regularly the degr ee of wear on the drive wheel. Change if it is irregularly worn. The chain drive wheel should be changed each time the chain is changed. B. Chain drive wheel 1. Check that the oil channel in the bar is not obstructe[...]

12 – English SAFETY INSTRUCTIONS General safety instructions IMPORT ANT INFORMA TION • The machine is only designed for tree pruning. • The only accessories to be used with the engine unit as a drive source are the cutting units we recommend. • Never use the machine if you are tired, if you have consumed alcohol, or if you are taking medici[...]

English – 13 SAFETY INSTRUCTIONS 2. A void usage in un-favourable w eather conditions. F or example, thick fog, heavy rain, strong winds or extreme cold, etc. T o work in bad w eather conditions is tiring and can create dangerous cir cumstances, e.g. slipper y surfaces. 3. Make sure you can walk and stand safely . Look out for any obstacles with [...]

14 – English SAFETY INSTRUCTIONS Basic clearing techniques • Always work with the engine at full throttle. • Always drop to idling speed after each working operation. Longer periods running at full throttle without loading the engine can lead to serious engine damage. W ARNING! Never stand immediately below a branch being cut. This can result[...]

English – 15 WHA T IS WHA T? 14. Throttle control 15. Guide bar 16. Adjuster screw for oil volume to chain 17. T elescopic shaft 18. H ydraulic motor 19. Chain 20. Owner's manual 21. Screw driver 22. T runk guard 23. T ransport guard 24. T oolbag 25. Hex key (5 mm) 26. Hex key (4 mm) 27. Combination key What is what? 1. C ylinder cover 2. S [...]

16 – English ASSEMBL Y W ARNING! The cutting equipment of the pruning saw may under no circumstances be connected to another type of hydraulic pump than what it is constructed for . Assembly of throttle handle S nap the throttle handle onto the shaft. The throttle handle can be moved forwards or backwards to obtain a comfortable working position.[...]

English – 17 FUEL HANDLING Fuel mix Mixing • Always mix the petrol and oil in a clean container intended for fuel. • Always start by filling half the amount of petrol to be used. Then add the entire amount of oil. M ix (shake) the fuel mixture. Add the r emaining amount of petrol. • Mix (shake) the fuel mixtur e thoroughly before filling th[...]

18 – English FUEL HANDLING – ST ART AND ST OP Start and stop • Clean around the fuel cap. Contamination in the tank can disrupt opera- tions. • Ensure that the fuel is well mixed by shaking the container before filling the tank. Cold engine IGNITION: Set the stop switch in start position. CHOKE: Set the choke lever in the choke position. V [...]

English – 19 ST ART AND ST OP Fitting the harness • P ut on the harness with engine unit. • P ress together the hip belt ’ s snap lock. • T ension the hip belt so that it rests on the hips. • T ension both shoulder belts so that the harness presses to the back. Quick release in case of hazard • P ull out the red strap. • The hip bel[...]

20 – English MAINTENANCE W ARNING! Contact your servicing dealer , if the idle speed setting cannot be adjusted. Do not use the pruner until it has been properly adjusted or repaired. ! Fine adjustment • When the tr ee pruner is ” run in ” the carburettor should be fine adjusted. F ine adjustment should be carried out by trained personnel. [...]

English – 21 MAINTENANCE Air filter The air filters must be regularly cleaned from dust and dirt in order to av oid: • Carburettor malfunctions • S tarting problems • Engine power r eduction • U nnecessary wear on the engine parts • Abnormal fuel consumption If the engine is low on po wer , difficult to start or runs poorly at idling sp[...]

22 – English MAINTENANCE Cooling system T o maintain as low an operating temperature as possible the engine is equipped with a cooling system. The cooling system consits of: 1. An air intake on the starter unit. 2. F ins on the flywheel. Maintenance schedule Belo w follows some general maintenance instructions. If you need further information ple[...]

English – 23 MAINTENANCE Monthly maintenance 1. Clean the fuel tank using petrol. 2. Clean the carburettor and the space surrounding it. 3. Clean the fan and the space around it. 4. Check the fuel filter and the fuel pipe, replace if necessary. 5. Check all cables and connections. 6. Replace the spark plug. 7. Clean the inside of the hydraulic ta[...]

24 – English TECHNICAL DA T A Vibration levels Equivalent sound pr essure level as per ISO 7505 max. output speed, unloaded engine. Left (shaft) idling/max. output speed, m/s 2 1,0/1,9 Right (throttle handle) idling/max. output speed, m/s 2 1,0/2,1 T echnical data Engine C ylinder capacity , cm 3 48,7 C ylinder bore, mm 44,0 S troke, mm 32,0 Idli[...]

English – 25 TECHNICAL DA T A Type Inch Inch/mm Inch/mm Angle Angle Angle Inch/mm Inch/cm: dl 90 SG 3/8" 0,028"/1,1 5/32" /4,0 85 ° 30 ° 0 ° 0,025"/0,65 10"/25:40 12"/30:45 1 5 L Bar and chain combinations The following combinations are CE approved. Bar Chain Length, Pitch, Max. no of teeth inches inches on tip sp[...]

26 – English ´+HÆh¶6v¨ EU declaration of conformity (Only applies to Europe) (Directive 89/392/EEC, Annex II, A) We, Husqvarna AB, S-561 82 Huskvarna, Sweden, tel. +46 36-146500, declare under sole responsibility that the pruner Husqvarna 250PS from the serial numbers of 1997 and onwards (the year is clearly stated in plain text on the type p[...]

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28 – English ´+HÆh¶6v¨ 2001W14[...]