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Operator’s manual
334T 338XPT
Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
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KEY TO SYMBOLS Symbols on the machine: Symbols in the operator’s WARNING! Chain saws can be manual: dangerous! Careless or improper use can Switch off the engine by moving the result in serious or fatal injury to the stop switch to the STOP position before operator or others. carrying out any checks or Please read the operator’s manual maintenance. carefully and make sure you understand the instructions before using the Working position machine. Always wear: • Appr
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KEY TO SYMBOLS You will find the following labels on your chain saw: EPA III The Emissions Compliance Period referred to on the Emission Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal and Californian emissions requirements. Maintenance, replacement, or repair of the emission control devices and system may be performed by any nonroad engine repair establishment or individual. English – 3
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CONTENTS FEDERAL AND CALIFORNIA EMISSIONS Contents CONTROL WARRANTY STATEMENT KEY TO SYMBOLS YOUR WARRANTY RIGHTS AND Symbols on the machine: ...................................... 2 OBLIGATIONS ..................................................... 39 Symbols in the operator’s manual: ........................ 2 AMERICAN STANDARD SAFETY CONTENTS PRECAUTIONS Contents ............................................................... 4 Safet
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INTRODUCTION Dear customer! Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Karl XI ordered the construction of a factory on the banks of the Huskvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the water- powered plant. During over 300 years of continuous operation, the Husqvarna factory has produced a lo
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WHAT IS WHAT? What is what on the chain saw? 1 Filter cover 16 Front handle 2 Adjuster screws carburetor 17 Oil pump adjustment screw 3 Starter 18 Throttle lockout 4 Fuel tank 19 Throttle control 5 Chain oil tank 20 Bar 6 Chain tensioning screw (334T) 21 Chain 7 Bumper spike 22 Bar tip sprocket 8 Front hand guard 23 Chain catcher 9 Information and warning decal 24 Chain tensioning screw (338XPT) 10 Stop and choke control: Ignition on/off switch Choke 25 Product and serial number plat
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GENERAL SAFETY PRECAUTIONS Before using a new chain saw Important • Please read this manual carefully. IMPORTANT! • Check that the cutting equipment is correctly fitted This chain saw for tree service is designed for pruning and adjusted. See instructions under the heading and dismantling standing tree crowns. Assembly. You should only use the saw with the bar and chain • Refuel and start the chain saw. See the instructions combinations we recommend in the chap
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GENERAL SAFETY PRECAUTIONS provide information about which training materials and • Fire Extinguisher and Shovel courses are available. Generally clothes should be close-fitting without restricting your freedom of movement. IMPORTANT! Sparks can come from the muffler, the bar and chain or other sources. Always have fire Work is constantly in progress to improve the design and extinguishing tools available if you should need them. technology - improvements that increas
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GENERAL SAFETY PRECAUTIONS • The chain brake must be engaged when the chain Chain brake and front hand guard saw is started to prevent the saw chain from rotating. Your chain saw is equipped with a chain brake that is designed to stop the chain if you get a kickback. The chain brake reduces the risk of accidents, but only you can prevent them. • Use the chain brake as a ”parking brake” when starting and when moving over short distances, to reduce the risk of moving chain accidentally hitti
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GENERAL SAFETY PRECAUTIONS If the kickback is less violent or the kickback zone of Will my chain brake always protect me the bar is closer to you the chain brake is designed to from injury in the event of a kickback? be activated manually by the movement of your left hand. No. First, the chain brake must be in working order to provide the intended protection. Second, it must be activated during the kickback as described above to stop the saw chain. Third, the chain brake may be activated
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GENERAL SAFETY PRECAUTIONS equipment and the machine′s handle unit. The body of the requiring among other things the muffler must be chain saw, including the cutting equipment, is insulated equipped with an approved type of spark arrestor screen. from the handles by vibration damping units. Cutting hardwoods (most broadleaf trees) creates more CAUTION! The muffler gets very hot during and after vibration than cutting softwoods (most conifers). Cutting use. This also applies during idling. Be aw
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GENERAL SAFETY PRECAUTIONS • Keep the chain properly tensioned! If the chain is • Number of teeth on bar tip sprocket (T). slack it is more likely to jump off and lead to increased wear on the bar, chain and drive sprocket. • Chain pitch (inches). The spacing between the drive links of the chain must match the spacing of the teeth • Keep cutting equipment well lubricated and on the bar tip sprocket and drive sprocket. properly maintained! A poorly lubricated chain is more likely to break
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GENERAL SAFETY PRECAUTIONS gauge. This will help you obtain the maximum kickback Sharpening your chain and adjusting reduction and cutting performance from your chain. depth gauge setting General information on sharpening cutting teeth • Never use a blunt chain. When the chain is blunt you have to exert more pressure to force the bar through the wood and the chips will be very small. If the chain is very blunt it will produce wood powder and no chips or shavings. See instructions under the
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GENERAL SAFETY PRECAUTIONS General advice on adjusting depth gauge setting Tensioning the chain • When you sharpen the cutting tooth (A) the depth gauge setting (C) will decrease. To maintain optimal cutting performance the depth gauge (B) has to be filed down to achieve the recommended depth gauge setting. See instructions under the heading Technical data to find the correct depth gauge setting for your WARNING! A slack chain may jump off particular chain. the bar and cause serious or even
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GENERAL SAFETY PRECAUTIONS Checking chain lubrication Lubricating cutting equipment • Check the chain lubrication each time you refuel. See WARNING! Poor lubrication of cutting instructions under the heading Lubricating the bar tip equipment may cause the chain to snap, sprocket. ! which could lead to serious, even fatal Aim the tip of the bar at a light coloured surface about injuries. 20 cm (8 inches) away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on th
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GENERAL SAFETY PRECAUTIONS Chain drive sprocket • Whether the groove in the bar has become badly worn. Replace the bar if necessary. The clutch drum is fitted with one of the following drive • Whether the tip of the bar is uneven or badly worn. If sprockets: a hollow forms on the underside of the bar tip this is A Spur sprocket (the chain sprocket is welded on the due to running with a slack chain. drum) B Rim sprocket (replaceable) • To prolong the life of the bar you should turn it ove
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ASSEMBLY Tension the chain by turning the chain tensioning screw Fitting the bar and chain clockwise using the combination spanner. See instructions under the heading Tensioning the chain. The chain is correctly tensioned when it does not sag from the underside of the bar, but can still be turned easily by hand. Hold up the bar tip and tighten the bar nuts with the WARNING! Always wear gloves, when combination spanner. working with the chain. ! Check that the chain brake is in disengaged po
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FUEL HANDLING Mixing ratio Fuel 1:50 (2%) for all engines. Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of gasoline and Gasoline, litre Two-stroke oil, litre two-stroke oil. It is important to accurately measure the 2% (1:50) amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, 5 0,10 even small inaccuracies can drastically affect the ratio of 10 0,43/0,20 the mixture. 15 0,30 WARNING! A
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FUEL HANDLING • In temperatures below 32°F (0°C) some oils become • Move the machine at least 10 ft (3 m) from the too viscous. This can overload the oil pump and result refuelling point before starting it. in damage to the oil pump components. • Contact your service agent when choosing chain oil. Fueling WARNING! Taking the following precautions, will lessen the risk of fire: ! • Never start the machine: Do not smoke and do not place any hot 1 If you have spilled fuel or chain oil on the mach
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STARTING AND STOPPING Warm engine Starting and stopping WARNING! Note the following before starting: ! The chain brake must be engaged when the chain saw is started to reduce the chance of contact with the moving chain Use the same starting procedure as for a cold engine, during starting. with the following exceptions: • Slide the control to its rear position. Never start a chain saw unless the bar, chain and all covers are fitted correctly. • Slide the control back to its middle position
