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Husqvarna TRIOBRAKE 353 Operator's Manual

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Operator's manual
346XP, 346XPG,
346Xp E-tech,
346XPG E-tech,
353, 353G, 353 E-tech,
E E E E n n n n g g g g l l l l i i i i s s s s h h h h
353G E-tech, TrioBrake
Please read the operator's manual carefully and make sure you understand the instructions before using the


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   Summary of Contents for Husqvarna TRIOBRAKE 353

  • Page 1

    Operator′s manual 346XP, 346XPG, 346Xp E-tech, 346XPG E-tech, 353, 353G, 353 E-tech, E E E E n n n n g g g g l l l l i i i i s s s s h h h h 353G E-tech, TrioBrake Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.

  • Page 2: Symbols On The Machine

    Symbols on the machine: WARNING! Chain saws can be dangerous! Careless or incorrect 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 the instructions before using the machine.

  • Page 3: Table Of Contents

    Contents KEY TO SYMBOLS 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? ... 5 GENERAL SAFETY PRECAUTIONS Before using a new chain saw ...

  • Page 4: Introduction

    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 Husqvarna River, for production of muskets.

  • Page 5: What Is What

    What is what on the chain saw? Product and serial number plate Throttle lockout Decompression valve Front handle Cylinder cover Front hand guard Muffler Spike bumper Bar tip sprocket 10 Rear handle with right hand guard 11 Throttle control 12 Clutch cover 13 Oil pump adjustment screw 14 Chain catcher 15 Chain tensioning screw...

  • Page 6: General Safety Precautions

    GENERAL SAFETY PRECAUTIONS Before using a new chain saw • Please read this manual carefully. • Check that the cutting equipment is correctly fitted and adjusted. See instructions under the heading Assembly. • Refuel and start the chain saw. See the instructions under the headings Fuel Handling and Starting and Stopping.

  • Page 7: Always Use Common Sense

    GENERAL SAFETY PRECAUTIONS Always use common sense It is not possible to cover every conceivable situation you can face when using a chain saw. Always exercise care and use your common sense. Avoid all situations which you consider to be beyond your capability. If you still feel uncertain about operating procedures after reading these instructions, you should consult an expert before continuing.

  • Page 8

    GENERAL SAFETY PRECAUTIONS Take care when using your saw and make sure the kickback zone of the bar never touches any object. • The chain brake (A) can either be activated manually (by your left hand) or automatically by the inertia release mechanism.

  • Page 9: Chain Catcher

    GENERAL SAFETY PRECAUTIONS • In the felling position the left hand is in a position that makes manual activation of the chain brake impossible. With this type of grip, that is when the left hand is placed so that it cannot affect the movement of the front hand guard, the chain brake can only be activated by the inertia action.

  • Page 10: Cutting Equipment

    GENERAL SAFETY PRECAUTIONS Vibration damping system Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier. The machine′s vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machine′s handle unit. The body of the chain saw, including the cutting equipment, is insulated from the handles by vibration damping units.

  • Page 11

    GENERAL SAFETY PRECAUTIONS • Keep the chain’s cutting teeth properly sharpened! Follow our instructions and use the recommended file gauge. A damaged or badly sharpened chain increases the risk of accidents. • Maintain the correct depth gauge setting! Follow our instructions and use the recommended depth gauge clearance.

  • Page 12: Sharpening Your Chain And Adjusting Depth Gauge Setting

    GENERAL SAFETY PRECAUTIONS • Drive link width (mm/inches) • Number of drive links. Sharpening your chain and adjusting 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.

  • Page 13: Tensioning The Chain

    GENERAL SAFETY PRECAUTIONS • File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (5/32") the chain is worn out and should be replaced. General advice on adjusting depth gauge setting •...

  • Page 14: Lubricating Cutting Equipment

    GENERAL SAFETY PRECAUTIONS The position of the chain tensioning screw on our chain saws varies from model to model. See instructions under the heading What is what? to find out where it is on your model. Lubricating cutting equipment WARNING! Poor lubrication of cutting equipment may cause the chain to snap, which could lead to serious, even fatal injuries.

  • Page 15

    GENERAL SAFETY PRECAUTIONS B Rim sprocket (replaceable) Regularly check the degree of wear on the drive sprocket. Replace if wear is excessive. Replace the drive sprocket whenever you replace the chain. Needle bearing lubrication Both versions of sprockets have a needle bearing on the drive shaft, which has to be greased regularly (once a week).

  • Page 16: Assembly

    Fitting the bar and chain WARNING! Always wear gloves, when working with the chain. Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle. Remove the bar nuts and remove the clutch cover (chain brake).

  • Page 17: Fuel Handling

    Fuel Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of petrol and two- stroke oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained.

  • Page 18: Fuelling

    Fuelling 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 a few minutes before refuelling. When refuelling, open the fuel cap slowly so that any excess pressure is released gently.

  • Page 19: Starting And Stopping

    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 during starting. Never start a chain saw unless the bar, chain and all covers are fitted correctly.

  • Page 20: Starting And Stopping

    prevents unnecessary wear to the clutch, clutch drum and brake band. Note! Reactivate the chain brake by pushing the front hand guard back towards the front handle. The chain saw is now ready for use. WARNING! Long term inhalation of the engine’s exhaust fumes, chain oil mist and dust from sawdust can represent a health risk.

  • Page 21: Working Techniques

    Before use: Check that the chain brake works correctly and is not damaged. Check that the rear right hand guard is not damaged. Check that the throttle lockout works correctly and is not damaged. Check that the stop switch works correctly and is not damaged.

  • Page 22: General Rules

    lose control. Both situations can cause serious personal injury. Before moving your chain saw switch off the engine and lock the chain using the chain brake. Carry the chain saw with the bar and chain pointing backwards. Fit a guard to the bar before transporting the chain saw or carrying it for any distance.

  • Page 23: Basic Cutting Technique

    the saw chain is jamming, the saw may be pushed back at you. Unless the user resists this pushing force there is a risk that the chain saw will move so far backwards that only the kickback zone of the bar is in contact with the tree, which will lead to a kickback.

  • Page 24: Tree Felling Technique

    Cut difficult branches piece by piece. Cutting WARNING! Never attempt to cut logs while they are in a pile or when a couple of logs are lying together. Such procedures drastically increase the risk of kickback which can result in a serious or fatal injury.

  • Page 25

    Make sure that no-one else is in this ”risk zone” before or during felling. Felling direction The aim is to fell the tree in a position where you can limb and cross-cut the log as easily as possible. You want it to fall in a location where you can stand and move about safely.

  • Page 26

    Felling WARNING! Unless you have special training we advise you not to fell trees with a diameter larger than the bar length of your saw! 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.

  • Page 27: Freeing A Tree That Has Fallen Badly

    When the felling cut and directional cut are complete the tree should start to fall by itself or with the aid of a felling wedge or breaking bar. We recommend that you use a bar that is longer than the diameter of the tree, so that you can make the felling cut and directional cuts with single cutting strokes.

  • Page 28: How To Avoid Kickback

    If you must cut across tree/limb, make two to three cuts, one inch apart, one to two inches deep. Continue to cut deeper until tree/limb bends and tension is released. Cut tree/limb from outside the bend, after tension has been released. How to avoid kickback WARNING! Kickback can happen very suddenly and violently;...

  • Page 29: Maintenance

    General The user must only carry out the maintenance and service work described in this manual. IMPORTANT! Any maintenance other than that described in this manual must be carried out by your servicing dealer (retailer). Carburettor adjustment Due to existing environmental and emissions legislation your chain saw is equipped with movement limiters on the carburettor adjuster screws.

  • Page 30: Checking, Maintaining And Servicing Chain Saw Safety Equipment

    WARNING! Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the chain stops. Do not use the chain saw until it has been properly adjusted or repaired. High speed jet H At the factory the engine is adjusted at sea level. When working at a high altitude or in different weather conditions, temperatures and atmospheric humidity, it may be necessary to make minor...

  • Page 31: Throttle Lockout

    Checking the right-hand brake trigger Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. Push the trigger up and forwards to check that it moves freely and is securely hinged to the clutch cover. Never carry or hang the saw by the trigger! This could damage the mechanism and disable the chain brake.

  • Page 32: Muffler

    necessary with an aluminium chain catcher (is available as spare part). Right hand guard Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. Vibration damping system Regularly check the vibration damping units for cracks or deformation.

  • Page 33: Starter

    use a muffler if the spark arrestor mesh is missing or defective. The muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause fire if directed against dry and combustible material.

  • Page 34: Air filter

    • Lubricate the recoil spring with light oil. Fit the cassette with recoil spring in the starter. Fit the starter pulley and tension the recoil spring. Fitting the starter • To fit the starter, first pull out the starter cord and place the starter in position against the crankcase.

  • Page 35: Adjustment Of The Oil Pump

    Lubrication involves engine oil dripping into the centre of the clutch drum as it rotates. Adjustment of the oil pump (346XP/353) The oil pump is adjustable. Adjustments are made by turning the screw using a screwdriver or combination spanner. The machine is supplied from the factory with the screw set to position 2.

  • Page 36: Electrical Carburettor Heating

    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. Electrical carburettor heating (346XPG, 353G) If this chain saw is marked with Carburetor Heating then it is equipped with an electrically heated carburettor.

  • Page 37: Maintenance Schedule

    Maintenance schedule The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the Maintenance section. Daily maintenance Clean the outside of the machine. Check that the components of the throttle control work safely.

  • Page 38: Technical Data

    Technical data Engine Cylinder displacement, cm Cylinder bore, mm Stroke, mm Idle speed, rpm Power, kW/ rpm Ignition system Spark plug Electrode gap, mm Fuel and lubrication system Fuel tank capacity, litre Oil pump capacity at 9,000 rpm, ml/min Oil tank capacity, litre Type of oil pump Weight Chain saw without bar or chain, empty tanks, kg...

  • Page 39: Bar And Chain Combinations

    Bar and chain combinations The following cutting attachments are approved for the models Husqvarna 346XP, 346XPG, 346XP E-tech, 346XPG E- tech, 353, 353G, 353 E-tech and 353G E-tech, Triobrake. Length, inch Pitch, inch 0,325 0,325 0,325 0,325 0,325 0,325 0,325 0,325 0,325 0,325...

  • Page 40: Ec-declaration Of Conformity

    TrioBrake, 01/161/061 – 353 TrioBrake, 353G TrioBrake, 01/161/046 – 353G E-tech TrioBrake. The supplied chain saw conforms to the example that underwent EC type examination. Huskvarna December 29, 2009 Bengt Frögelius, Development director chainsaw R&D (Authorized representative for Husqvarna AB and responsible for technical documentation.) 40 – English...

  • Page 44

    Original instructions 1153178-26 ´®z+U1r¶69¨ ´®z+U1r¶69¨ 2010-03-25...

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