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Operator’s manual
334T 338XPT EPA III, CARB III
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: Protective goggles or a visor must be WARNING! Chain saws can be dangerous! worn. Careless or improper use can result in serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you understand Refuelling. the instructions before using the machine. Always wear: • Approved protective helmet Filling with oil and adjusting oil flow. • Approved hearing protection • Protective goggles or a viso
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CONTENTS AMERICAN STANDARD SAFETY Contents PRECAUTIONS KEY TO SYMBOLS Safety precautions for chain saw users ................ 40 Symbols on the machine: ..................................... 2 Symbols in the operator’s manual: ....................... 2 CONTENTS Contents ............................................................... 3 INTRODUCTION Dear customer! ..................................................... 4 WHAT IS WHAT? What is what on the chain saw?
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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 lot o
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WHAT IS WHAT? What is what on the chain saw? 1 Filter cover 15 Starter handle 2 Adjuster screws carburetor 16 Front handle 3 Starter 17 Oil pump adjustment screw 4 Fuel tank 18 Throttle lockout 5 Chain oil tank 19 Throttle control 6 Chain tensioning screw (334T) 20 Bar 7 Bumper spike 21 Chain 8 Front hand guard 22 Bar tip sprocket 9 Information and warning decal 23 Chain catcher 10 Stop and choke control: 24 Chain tensioning screw (338XPT) Ignition on/off switch 25 Product and serial numbe
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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 and The machine is only designed for cutting wood. adjusted. See instructions under the heading Assembly. You should only use the saw with the bar and chain combinations we recommend in the chapter Technical • Refuel and start the chain saw. See the instructions data. under the headings Fuel Handling and Starti
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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 Work is constantly in progress to improve the design and and chain or other sources. Always have fire technology - improvements that increase your safety and extinguishing tools available if you should n
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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
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GENERAL SAFETY PRECAUTIONS If the kickback is less violent or the kickback zone of the Throttle lockout bar is closer to you the chain brake is designed to be The throttle lockout is designed to prevent accidental activated manually by the movement of your left hand. operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B). When you release the handle the throttle control and the throttle loc
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GENERAL SAFETY PRECAUTIONS with cutting equipment that is blunt or faulty (wrong type WARNING! Never use a saw without a or badly sharpened) will increase the vibration level. muffler, or with a damaged muffler. A ! damaged muffler may substantially increase the noise level and the fire hazard. Keep fire fighting equipment handy. If a spark arrestor screen is required in your area, never use the saw without or with a broken spark arrestor screen. WARNING! Overexposur
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GENERAL SAFETY PRECAUTIONS • Number of drive links. The number of drive links is Cutting equipment designed to reduce determined by the length of the bar, the chain pitch kickback and the number of teeth on the bar tip sprocket. WARNING! Faulty cutting equipment or the wrong combination of bar and saw ! chain increases the risk of kickback! Only use the bar/saw chain combinations we recommend, and follow the filing • Bar groove width (inches/mm). The groove in the bar
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GENERAL SAFETY PRECAUTIONS • The cutting part of the chain is called the cutter and Sharpening cutting teeth consists of a cutting tooth (A) and the depth gauge (B). The cutters cutting depth is determined by the difference in height between the two (depth gauge setting). To sharpen cutting teeth you will need a round file and a file gauge. See instructions under the heading Technical data for information on the size of file and gauge that are recommended for the chain fitted to your chain saw
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GENERAL SAFETY PRECAUTIONS Adjustment of depth gauge setting • Loosen the bar nut that holds the clutch cover and chain brake. Use the combination spanner. • The cutting teeth should be newly sharpened before adjusting the depth gauge setting. We recommend that you adjust the depth gauge setting every third time you sharpen the cutting teeth. NOTE! This • Raise the tip of the bar and stretch the chain by recommendation assumes that the length of the tightening the chain tensioning screw u
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GENERAL SAFETY PRECAUTIONS Filling with chain oil • Check that the groove in the edge of the bar is clean. Clean if necessary. • All our chain saws have an automatic chain lubrication system. On some models the oil flow is also adjustable. • Check that the bar tip sprocket turns freely and that the lubricating hole in the tip sprocket is not blocked. Clean and lubricate if necessary. • The saw chain oil tank and the fuel tank are designed so that the fuel runs out before the saw chain oil.
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GENERAL SAFETY PRECAUTIONS Checking wear on cutting equipment • To prolong the life of the bar you should turn it over daily. Check the chain daily for: WARNING! Most chain saw accidents happen when the chain touches the ! operator. Wear personal protective equipment. See instructions under the heading ”Personal • Visible cracks in rivets and links. protective equipment”. • Whether the chain is stiff. Do not tackle any job that you feel you • Whether rivets and links are badly worn. are no
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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 Gasoline, litre Two-stroke oil, litre and must always be run using a mixture of gasoline and two-stroke oil. It is important to accurately measure the 2% (1:50) amount of oil to be mixed to ensure that the correct 5 0,10 mixture is obtained. When mixing small amounts of fuel, 10 0,43/0,20 even small inaccuracies can drastically affect the ratio of the mixture. 15 0,30 20 0,40 W
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FUEL HANDLING • Move the machine at least 10 ft (3 m) from the Fueling refuelling point before starting it. WARNING! Taking the following precautions, will lessen the risk of fire: ! Do not smoke and do not place any hot objects in the vicinity of fuel. Always stop the engine and let it cool for • Never start the machine: a few minutes before refuelling. 1 If you have spilled fuel or chain oil on the machine. When refuelling, open the fuel cap slowly Wipe off the spillage and allow remainin
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STARTING AND STOPPING Starting Starting and stopping WARNING! Note the following before starting: ! Grip the front handle with your left hand. Hold the chain The chain brake must be engaged when saw on the ground by placing your right foot through the the chain saw is started to reduce the rear handle. Pull the starter handle with your right hand chance of contact with the moving chain and pull out the starter cord slowly until you feel a during starting. resistance (as the starter pawl
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STARTING AND STOPPING • Never start a chain saw unless the bar, chain and all Stopping covers are fitted correctly. See instructions under the heading Assembly. Without a bar and chain attached to the chain saw the clutch can come loose and cause serious injury. The engine is stopped by pushing the stop switch to the stop position. • The chain brake should be activated when starting. Se instructions under the heading Start and stop. Do not drop start. This method is very dangerous because
