Operator’s manual (EPA) 346XP EPA II 353 EPA I Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
KEY TO SYMBOLS Key to symbols Refuelling. WARNING! Chain saws can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. Filling with oil and adjusting oil flow. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. If your machine bears this symbol it is equipped with carburettor heating.
CONTENTS Contents KEY TO SYMBOLS Key to symbols .............................................................. CONTENTS Contents ....................................................................... Before using a new chain saw ...................................... SAFETY INSTRUCTIONS Personal protective equipment ...................................... Machine′s safety equipment ......................................... Checking, maintaining and servicing the machine′s safety equipment ..................
CONTENTS Before using a new chain saw • Please read the operator’s manual carefully. • Check that the cutting equipment is correctly fitted and adjusted. See instructions under the heading Assembly. • Refuel, start the chain saw and check the carburettor settings. See the instructions under the headings Fuel Handling, Starting and Stopping, and Carburettor. • Do not use the chain saw until sufficient chain oil has reached the chain. See instructions under the heading Lubricating cutting equipment.
SAFETY INSTRUCTIONS Personal protective equipment ! WARNING! Most chain saw accidents happen when the chain touches the operator. You must use approved personal protective equipment whenever you use the machine. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your dealer for help in choosing the right equipment. ! WARNING! Long or continuous exposure to high noise levels may cause permanent hearing impairment.
SAFETY INSTRUCTIONS Chain brake and front hand guard due to kickback, you should also apply the chain brake manually if there is a risk of the chain accidentally hitting anyone or anything close by. Your chain saw is equipped with a chain brake that is designed to stop the chain immediately if you get a kickback. The chain brake reduces the risk of accidents, but only you can prevent them. Take care when using your saw and make sure the kickback zone of the bar never touches any object.
SAFETY INSTRUCTIONS it cannot affect the movement of the front hand guard, the chain brake can only be activated by the inertia of the counterweight. • The inertia activated chain brake is a valuable feature but there are certain factors to remember (see point above). Throttle lock The throttle lock is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B).
SAFETY INSTRUCTIONS Muffler The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user. Regularly check that the brake band is at least 0.6 mm thick at its thinnest point. Checking the front hand guard Make sure the front hand guard is not damaged and that there are no visible defects such as cracks. ! WARNING! The exhaust fumes from the engine are hot and may contain sparks which can start a fire.
SAFETY INSTRUCTIONS Grasp the chain saw firmly, wrapping your fingers and thumbs around the handles. Right hand guard Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. Apply full throttle and activate the chain brake by tilting your left wrist forward onto the front hand guard. Do not let go of the front handle. The chain should stop immediately.
SAFETY INSTRUCTIONS If the muffler on your machine is fitted with a spark arrestor mesh this must be cleaned regularly. A blocked mesh will cause the engine to overheat and may lead to serious damage. • Keep cutting equipment well lubricated and properly maintained! A poorly lubricated chain is more likely to break and lead to increased wear on the bar, chain and drive sprocket. Cutting equipment designed to minimise kickback Never use a muffler if the spark arrestor mesh is missing or defective.
SAFETY INSTRUCTIONS Some terms that describe the bar and chain • When the cutting equipment supplied with your saw becomes worn or damaged you must replace it with one of the bars and chains recommended by us. See the Technical data section. Level of kickback reduction. The level of kickback reduction offered by a chain is only indicated by its model number. See the Technical data section to find the model numbers of chains that are recommended for use with your model of chain saw.
SAFETY INSTRUCTIONS 4 Round file diameter 5 File depth • Always file cutting teeth from the inside face. Reduce the pressure on the return stroke. File all the teeth on one side first, then turn the chain saw over and file the teeth on the other side. • File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (0.16") the chain is worn out and should be replaced. It is very difficult to sharpen a chain correctly without the right equipment.
SAFETY INSTRUCTIONS • To adjust the raker clearance you will need a flat file and a raker gauge. • Place the gauge over the raker lip. • • Raise the tip of the bar and stretch the chain by tightening the chain tensioning screw using the combination spanner. Tighten the chain until it does not sag from the underside of the bar. • Use the combination spanner to tighten the bar nuts while lifting the tip of the bar at the same time.
SAFETY INSTRUCTIONS Checking chain lubrication • Needle bearing lubrication Check the chain lubrication each time you refuel. Aim the tip of the bar at a light coloured surface about 20 cm (8 inches) away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on the light surface.
SAFETY INSTRUCTIONS How to avoid kickback Bar ! Check regularly: • Whether there are burrs on the edges of the bar. Remove these with a file if necessary. WARNING! Kickback can happen very suddenly and violently; kicking the chain saw, bar and chain back at the user. If this happens when the chain is moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking care and using the right working technique.
SAFETY INSTRUCTIONS 3 Most kickback accidents happen during limbing. Make sure you are standing firmly and that there is nothing in the way that might make you trip or lose your balance. Cutting with the bottom edge of the bar, i.e. from the top of the object downwards, is known as cutting on the pull stroke. In this case the chain saw pulls itself towards the tree and the front edge of the chain saw body rests naturally on the trunk when cutting.
SAFETY INSTRUCTIONS Starting ! Fuel safety WARNING! Long term inhalation of the engine’s exhaust fumes, chain oil mist and dust from sawdust can represent a health risk. • Never start a chain saw unless the bar, chain and all covers are fitted correctly. • The chain brake should be activated when starting (see section on “Starting”). Do not drop start. This method is very dangerous because you may lose control of the saw (see section on “Starting”).
SAFETY INSTRUCTIONS General working instructions ! • Take the utmost care when cutting through branches or logs that are in tension. A log or branch that is in tension can suddenly spring back into its natural position before or after you cut it. If you stand on the wrong side or start cutting in the wrong place it may strike you or your chain saw, so that you lose control. Both situations could cause serious injury.
SAFETY INSTRUCTIONS There are five important factors you should consider before making a cut: 1 Make sure the cutting equipment will not jam in the cut. 2 Make sure the object you are cutting will not split. Cut all the way through the log from above. Avoid letting the chain touch the ground as you finish the cut. Maintain full throttle but be prepared for what might happen. If it is possible (can you turn the log?) stop cutting about 2/3 of the way through the log.
SAFETY INSTRUCTIONS Start by cutting from above (about 1/3 of the way through). Once you have decided which way you want the tree to fall you must judge which way the tree would fall naturally. Several factors affect this: Finish by cutting from below so that the two cuts meet. • Lean of the tree • Bend • Wind direction • Arrangement of branches • Weight of snow Limbing When limbing thick branches you should use the same approach as for cutting. Cut difficult branches piece by piece.
SAFETY INSTRUCTIONS Felling Felling is done using three cuts. First you make the directional cuts, which consist of the top cut and the bottom cut, then you finish with the felling cut. By placing these cuts correctly you can control the felling direction very accurately. Finish the felling cut parallel with the directional cut line so that the distance between them is at least 1/10 of the trunk diameter. The uncut section of the trunk is called the felling hinge.
SAFETY INSTRUCTIONS Freeing a tree that has fallen badly Limbing ! WARNING! Most kickback accidents happen during limbing! Pay close attention to the position of the kickback zone of the bar when you are limbing branches that are in tension! Freeing a ”trapped tree” It is very dangerous to remove a trapped tree and there is high accident risk. The safest method is to use a winch. • Tractor-mounted • Portable Make sure that you can stand and move about safely. Work on the left side of the trunk.
WHAT IS WHAT? Husqvarna 346XP/353 XXXX XXXXXXX Husqvarna AB Huskvarna, SWEDEN 25 23 26 What is what on the chain saw? 1 Cylinder cover 16 Spike bumper 2 Front handle 17 Chain catcher (Catches chain if it jumps or breaks.) 3 Front hand guard 18 Clutch cover 4 Starter 5 Chain oil tank 19 Right hand guard (Protects right hand if chain breaks or jumps.
ASSEMBLY Fitting the bar and chain ! Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain should be tensioned until it does not sag from the underside of the bar. WARNING! Always wear gloves, when working with the chain, in order to protect your hands from injury. Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle.
FUEL HANDLING Fuel Mixing CAUTION! 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 mix the gasoline and oil in a clean container intended for fuel.
FUEL HANDLING Chain oil • The chain lubrication system is automatic and we recommend the use of special oil (chain oil) with good adhesion characteristics. Fuelling ! WARNING! Taking the following precautions, will lessen the risk of fire: Do not smoke or place hot objects near fuel. Always shut off the engine before refuelling. When refuelling, open the fuel cap slowly so that any excess pressure is released gently. Tighten the fuel cap carefully after refuelling.
FUEL HANDLING English – 27
STARTING AND STOPPING Starting and stopping ! Warm engine WARNING! Note the following before starting: Never start a chain saw unless the bar, chain and all covers are fitted correctly. Otherwise the clutch can come loose and cause personal injuries. Always move the machine away from the refuelling area before starting. Place the machine on firm ground. Make sure you have a secure footing and that the chain cannot touch anything. Keep people and animals well away from the working area.
STARTING AND STOPPING Pull the front hand guard towards the front handle. The chain brake is now disengaged. Your saw is ready for use. Stopping Stop the engine by switching off the ignition.
MAINTENANCE Carburettor Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. After the engine has used 8-10 tanks of fuel the engine will be run-in. To ensure that it continues to run at peak performance and to minimise harmful exhaust emissions after the running-in period, ask your dealer/service workshop (who will have a rev counter at their disposal) to adjust your carburettor.
MAINTENANCE gas at the same time as the machine “4-cycles” much, the setting is too rich. Turn the high speed needle H until the setting sounds correct. • Undo the screw in the centre of the pulley and remove the pulley. Insert and fasten a new starter cord to the pulley. Wind approx. 3 turns of the starter cord onto the pulley. Connect the pulley to the recoil spring so that the end of the spring engages in the pulley. Fit the screw in the centre of the pulley.
MAINTENANCE Fitting the starter Spark plug • To fit the starter, first pull out the starter cord and place the starter in position against the crankcase. Then slowly release the starter cord so that the pulley engages with the pawls. The spark plug condition is influenced by: • Fit and tighten the screws that hold the starter. • Incorrect carburettor adjustment. • Wrong fuel mixture (too much oil). • A dirty air filter.
MAINTENANCE Consequently, never work in an enclosed or badly ventilated area. Good air circulation should always prevail when working in snowy hollows, ravines or in confined conditions. WARNING! The catalytic converter muffler gets very hot during and after use. This also applies during idling. Be aware of the fire hazard, especially when working near flammable substances and/or vapours.
MAINTENANCE Heated handles Temperature -5°°C (23°°F) or colder: (346XPG, 353G) On models with the model code XPG/G both the front handle bar and the rear handle are equipped with electrical heating coils. These are supplied with electricity from a generator built into the chain saw. When the switch is pushed upwards, the heat is switched on. When the switch is pushed downwards, the heat is switched off.
MAINTENANCE Below you will find some general maintenance instructions. Weekly maintenance 1 2 4 3 0,5 mm Daily maintenance 3 2 1 5 4 5 6 7 8 6 1 Check that the vibration damping elements are not damaged. 2 Lubricate the clutch drum bearing. 3 File off any burrs from the edges of the bar. 4 Clean the spark plug. Check that the electrode gap is 0.5 mm (0,020 inch). 5 Clean the fins on the flywheel. Check the starter and the recoil spring.
TECHNICAL DATA Technical data 346XP 353 2,75/45,0 3,15/51,7 Engine Cylinder volume, cu.
TECHNICAL DATA Recommended original and replacement bar and chain combinations Following is a list of recommended cutting equipment for the Husqvarna chain saw models 346XP and 353. The combinations of power head, bar and chain have been investigated in accordance with the kickback and vibration requirements of ANSI B 175.1– 2000. The guide bar nose radius is determined by either the maximum number of teeth in the nose sprocket or the corresponding maximum nose radius of a solid bar.
FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The EPA (The US Environmental Protection Agency), Environment Canada and Husqvarna Forest & Garden are pleased to explain the emissions control system warranty on your 2001 and later small nonroad engine. In U.S. and Canada, new small nonroad engines must be designed, built and equipped to meet the federal stringent anti-smog standards.
FEDERAL EMISSION CONTROL WARRANTY STATEMENT EMISSION CONTROL WARRANTY PARTS LIST 1 Carburetor and internal parts 2 Intake pipe, airfilter holder and carburetor bolts. 3 Airfilter and fuelfilter covered up to maintenance schedule. 4 Ignition System 5 1 Spark Plug, covered up to maintenance schedule 2 Ignition Module Muffler with catalytic converter MAINTENANCE STATEMENT The owner is responsible for the performance of all required maintenance, as defined in the operator’s manual.
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