Husqvarna 334T Operator's Manual
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Husqvarna 334T Operator's Manual

Epa ii
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See also: Workshop Manual , Operator's Manual
Oper ator's manual (EPA II)
334T 338XPT
Please r ead the operator's manual carefully and make sure you
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
understand the instructions before using the machine.

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Summary of Contents for Husqvarna 334T

  • Page 1 Oper ator’s manual (EPA II) 334T 338XPT Please r ead the operator’s manual carefully and make sure you 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...

  • Page 2: Key To Symbols

    Symbols on the mac hine: W ARNING! Chain saws can be dangerous! 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 the instructions before using the machine.

  • Page 3: Table Of Contents

    Cooling system ... Maintenance schedule ... TECHNICAL D ATA T echnical data ... Bar and chain combinations, model 334T ... Bar and chain combinations, model 338XPT ... FEDERAL EMISSION CONTR OL WARRANTY STATEMENT Y OUR WARRANTY RIGHTS AND OBLIGATIONS ...

  • Page 4: Intr Oduction

    Dear customer! Cong ratulations 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.

  • Page 5: Wha T Is What

    1 Filter cover 2 Adjuster screws carburetor 3 Starter 4 Fuel tank 5 Chain oil tank 6 Chain tensioning screw (334T) 7 Bumper spike 8 Front hand guard 9 Information and warning decal 10 Stop and choke control: Ignition on/off switch...

  • Page 6: General Safety Preca Utions

    GENERAL SAFETY PRECA UTIONS Bef ore 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: Personal Protective Equipment

    GENERAL SAFETY PRECA UTIONS chain sa w usage if possible. Your dealer, forestry school or your library can provide information about which training materials and courses are available. Work is constantly in progress to improve the design and technology - improvements that increase your safety and efficiency.
  • Page 8 GENERAL SAFETY PRECA UTIONS • This movement activates a spring-loaded mechanism that tightens the brake band (C) around the engine drive system (D) (clutch drum). • The front hand guard is not designed solely to activate the chain brake. Another important feature is that it reduces the risk of the chain hitting your left hand if you lose grip of the front handle.
  • Page 9 GENERAL SAFETY PRECAUTIONS Will my inetria activated chain brake always activate during kickback in the event of a kickback? No. First your brake must be in working order. Second the kickback must be strong enough to activate the chain brake. If the chain brake is too sensitive it would activate all the time which would be a nuisance.

  • Page 10: Cutting Equipment

    To maintain the safety features of the cutting equipment, you should replace a worn or damaged bar or chain with a bar and chain combinations recommended by Husqvarna. See instructions under the heading Technical Data for a list of replacement bar and chain combinations we recommend.

  • Page 11: Sharpening Your Chain And Adjusting Depth Gauge Setting

    GENERAL SAFETY PRECAUTIONS • Length (inches/cm) • Number of teeth on bar tip sprocket (T). • Chain pitch (inches). The spacing between the drive links of the chain must match the spacing of the teeth on the bar tip sprocket and drive sprocket. •...

  • Page 12: Tensioning The Chain

    GENERAL SAFETY PRECAUTIONS Sharpening cutting teeth 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. •...

  • Page 13: Lubricating Cutting Equipment

    GENERAL SAFETY PRECAUTIONS • 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 nut while holding up the tip of the bar.
  • Page 14 GENERAL SAFETY PRECAUTIONS Chain drive sprocket The clutch drum is fitted with one of the following drive sprockets: A Spur sprocket (the chain sprocket is welded on the drum) B Rim sprocket (replaceable) Regularly check the degree of wear on the drive sprocket. Replace if wear is excessive.

  • Page 15: Assembly

    Fitting the bar and chain 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. Unscrew the bar nut and remove the clutch cover (chain brake).

  • Page 16: Fuel Handling

    When working with continuous high revs (e.g. limbing) a higher octane is recommended. Environment fuel HUSQVARNA recommends the use of alkylate fuel or environmental fuel for four-stroke engines blended with two- stroke oil as set out below. Note that carburetor adjustment may be necessary when changing the type of fuel (see instructions under the heading Carburetor).

  • Page 17: Fueling

    Fueling 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 18: Starting And Stopping

    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 19: Starting And Stopping

    STARTING AND STOPPING • 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 you may lose control of the saw. • Never start the machine indoors. Exhaust fumes can be dangerous if inhaled.

  • Page 20: Working Techniques

    Before use: 1 Check that the chain brake works correctly and is not damaged. 2 Check that the throttle lock works correctly and is not damaged. 3 Check that the stop switch works correctly and is not damaged. 4 Check that all handles are free from oil. 5 Check that the anti vibration system works and is not damaged.

  • Page 21: General Rules

    7 Take great care when cutting a tree that is under tension. A tree that is under tension may spring back to its normal position before or after being cut. If you position yourself incorrectly or make the cut in the wrong place the tree may hit you or the machine and cause you to lose control.

  • Page 22: Basic Cutting Technique

    8 Take great care when you cut with the top edge of the bar, i.e. when cutting from the underside of the object. This is known as cutting with a pushing chain. The chain tries to push the chain saw back towards the user. If the saw chain is jamming, the saw may be pushed back at you.

  • Page 23: Felling Technique For Tree Tops

    Cutting The log is lying on the ground. There is little risk of the chain jamming or the object splitting. However there is a risk that the chain will touch the ground when you finish the cut. Cut all the way through the log from above. Avoid letting the chain touch the ground as you finish the cut.
  • Page 24 Several factors affect this: • Lean of the tree • Bend • Wind direction • Arrangement of branches • Weight of snow You may find you are forced to let the tree fall in its natural direction because it is impossible or dangerous to try to make it fall in the direction you first intended.

  • Page 25: Freeing A Tree That Has Fallen Badly

    The felling hinge controls the direction that the tree falls in. All control over the felling direction is lost if the felling hinge is too narrow or non-existent, or if the directional cuts and felling cut are badly placed. 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.

  • Page 26: How To Avoid Kickback

    How to avoid kickback 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.

  • Page 27: Maintenance

    Due to existing environmental and emissions legislation your chain saw is equipped with movement limiters on the carburetor adjuster screws. These limit the adjustment possibilities to a maximum of a 1/2 turn. Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. Function •...

  • Page 28: Checking, Maintaining And Servicing Chain Saw Safety Equipment

    Checking, maintaining and servicing chain saw safety equipment Note! All servicing and repair work on the machine requires special training. This is especially true of the machine′s safety equipment. If your machine fails any of the checks described below we recommend you to contact our servicing dealer.

  • Page 29: Muffler

    Chain catcher Check that the chain catcher is not damaged and is firmly attached to the body of the chain saw. Vibration damping system Regularly check the vibration damping units for cracks or deformation. Make sure the vibration damping units are securely attached to the engine unit and handle unit.

  • Page 30: Starter

    Starter WARNING! When the recoil spring is wound up in the starter housing it is under tension and can, if handled carelessly, pop out and cause personal injury. Care must be exercised when replacing the return spring or the starter cord. Wear protective glasses and protective gloves.

  • Page 31: Air Filter

    The filter must therefore be replaced with a new one at regular intervals. A damaged air filter must always be replaced. A HUSQVARNA chain saw can be equipped with different types of air filters according to working conditions, weather, season, etc. Contact your dealer for advice.

  • Page 32: Cooling System

    MAINTENANCE Cooling system To keep the working temperature as low as possible the machine is equipped with a cooling system. The cooling system consists of: 1 Air intake on the starter. 2 Air guide plate. 3 Fins on the flywheel. 4 Cooling fins on the cylinder.

  • Page 33: 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 34: Technical Data

    Usable cutting length, inches/cm Chain speed at max. power, m/sec Pitch, inch/mm Thickness of drive links, inch/mm Number of teeth on drive sprocket 34 – English TECHNICAL DATA 334T 2,15/35,2 1,50/38,0 1,22/31 2800 1,5/9600 NGK BPMR 7A/ Champion RCJ 7Y...

  • Page 35: Bar And Chain Combinations, Model 334T

    Recommended original and replacement bar and chain combinations Following is a list of recommended cutting equipment for the Husqvarna chain saw models 334T and 338XPT. The combinations of power head, bar and chain have been tested and found to be in accordance with the kickback and vibration requirements of ANSI B 175.1–2000.

  • Page 36: Federal Emission Control Warranty Statement

    The warranty period begins on the date small nonroad engine is delivered. LENGTH OF COVERAGE Husqvarna Forest & Garden warrants to the initial owner and each subsequent purchaser that the engine is free from defects in materials and workmanship which cause the failure of a warranted part for a period of two years.

  • Page 37: American Standard Safety Precautions

    AMERICAN STANDARD SAFETY PRECAUTIONS Safety precautions for chain saw users (ANSI B 175.1-2000 Annex C) Kickback safety precautions WARNING! Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.
  • Page 38 ´®z+R*G¶55¨ ´®z+R*G¶55¨...
  • Page 40 1150103-95 ´®z+R*G¶55¨ ´®z+R*G¶55¨ 2005-08-31...

This manual is also suitable for:

338xpt

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