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Husqvarna 345FR Operator's Manual

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Operator's manual
345FR 545FX 545FXT
545RX 545RXT
Please read the operator's manual carefully and make sure you understand the instructions
before using the machine.
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



  Summary of Contents for Husqvarna 345FR

  • Page 1 Operator’s manual 345FR 545FX 545FXT 545RX 545RXT Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. 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

    KEY TO SYMBOLS Symbols Primer bulb WARNING! Clearing saws, brushcutters and trimmers can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. It is extremely Choke: Set the choke control in the important that you read and choke position.
  • Page 3: Table Of Contents

    CONTENTS Contents FEDERAL EMISSION CONTROL WARRANTY STATEMENT KEY TO SYMBOLS YOUR WARRANTY RIGHTS AND OBLIGATIONS 36 Symbols ..............2 • Maintenance, replacement, or repair of the emission CONTENTS control devices and system may be performed by any Contents ............... 3 nonroad engine repair establishment or individual.
  • Page 4: 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.
  • Page 5: What Is What

    WHAT IS WHAT? 345FR, 545RX,RXT 545FX, FXT What is what on the brush cutter? Grass blade (345FR, 545RX, 545RXT) 19 Primer bulb Saw blade (345FR, 545FX, 545FXT) 20 Air filter cover Trimmer head (345FR, 545RX, 545RXT) 21 Choke control Bevel gear 22 Harness, quick release Grease filler cap, bevel gear...
  • Page 6: General Safety Precautions

    GENERAL SAFETY PRECAUTIONS Measures to take before using Important new clearing saws, brushcutters IMPORTANT! or trimmers. The clearing saw or grass trimmer is only designed for trimming grass, grass clearing and/or forestry clearing. • Please read this manual carefully. National or local regulations may regulate the use. •...
  • Page 7: Personal Protective Equipment

    GENERAL SAFETY PRECAUTIONS Personal protective equipment BOOTS Wear boots with steel toe-caps and non-slip sole. IMPORTANT! A clearing saw, brushcutter or trimmer can be dangerous if used incorrectly or carelessly, and can cause serious or fatal injury to the operator or others. It is extremely important that you read and understand the contents of this operator’s manual.
  • Page 8: Stop Switch

    GENERAL SAFETY PRECAUTIONS Throttle trigger lockout The throttle lockout 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). When you release the handle the throttle control and the throttle lockout both move back to their original positions.
  • Page 9 GENERAL SAFETY PRECAUTIONS Vibration damping system Check that the harness straps are correctly positioned. Once the harness and machine have been adjusted, check that the harness quick release works correctly. Muffler Your machine is equipped with a vibration damping system that is designed to reduce vibration and make operation easier.
  • Page 10: Cutting Equipment

    GENERAL SAFETY PRECAUTIONS Cutting equipment WARNING! Mufflers fitted with catalytic converters get very hot during use and This section describes how to choose and maintain your remain so for some time after stopping. cutting equipment in order to: This also applies at idle speed. Contact •...
  • Page 11: Sharpening The Saw Blade

    GENERAL SAFETY PRECAUTIONS Sharpening grass knifes and grass A trimmer head is intended for trimming grass. blades • See the cutting attachment packaging for correct General rules sharpening instructions. Sharpen blades and cutters using a single-cut flat file. • Sharpen all edges equally to maintain the balance of the blade.
  • Page 12 GENERAL SAFETY PRECAUTIONS • The filing angle is 15°. File alternate teeth to the right Trimmer head and those in between to the left. If the blade has been heavily pitted by stones it may be necessary to dress IMPORTANT! the top edges of the teeth with a flat file, in exceptional Always ensure the trimmer cord is wound tightly and cases.
  • Page 13: Assembly

    ASSEMBLY Transport position, handlebar Assembling the handlebar and throttle CAUTION! Some models have the throttle handle fitted at • The handlebar can easily be turned to fit along the the factory. shaft for easier transportation and storage. • Remove the screw at the rear of the throttle handle. •...
  • Page 14: Fitting The Guard Extension

    ASSEMBLY Fitting the guard extension Fitting the blade guard/ combination guard, grass blade and grass cutter The guard extension shall always be fitted when using the trimmer head/plastic blades and combination guard. The guard extension shall always be removed when using the Hook the blade guard/combination guard (A) onto the grass blade and combination guard.
  • Page 15: Fitting The Blade Guard And Saw Blade

    Hold the shaft of the spanner as close to the blade guard as possible. To tighten the nut, turn the spanner in the opposite direction to the direction of rotation 345FR, 545RX, 545RXT (Caution! left-hand thread). • Fit the holder (R) and bracket (J) with 2 bolts (H) on the gear housing.
  • Page 16: Fitting Other Guards And Cutting Attachments

    Use the locking pin (C). Place the Balance X locking pin in the groove on the screw head and tighten. See diagram. (345FR, 545RX) Safety release Push down the red release lever to release the machine from the harness.
  • Page 17: Balance Xt

    ASSEMBLY Adjust the shoulder strap to distribute the load evenly Balance XT across your shoulders. Press downwards on the suspension hook to load the harness. (545FX, 545FXT, 545RXT) Adjust the height of the suspension hook as described in the instructions for the standard harness. (Forestry clearing) Safety release Push down the red release lever to release the machine...
  • Page 18 ASSEMBLY Tighten the hip strap so that it sits securely. If you need to lower the suspension hook, for trimming for example, move the suspension strap (A) to the lower mounting point on the backplate. The front belt that is attached to the breast plate can also be adjusted if necessary.
  • Page 19: Fuel Handling

    Two-stroke oil • Secure the machine during transport. • For best results and performance use HUSQVARNA two-stroke engine oil, which is specially formulated for WARNING! Take care when handling fuel. our air-cooled two stroke-engines. Bear in mind the risk of fire, explosion •...
  • Page 20: Fueling

    FUEL HANDLING Mixing Fueling • Always mix the gasoline and oil in a clean container intended for fuel. • Always start by filling half the amount of the gasoline to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture.
  • Page 21: Starting And Stopping

    STARTING AND STOPPING Check before starting • Never use the machine without a guard nor with a defective guard. • All covers must be correctly fitted and undamaged before you start the machine. Starting and stopping • Check the blade to ensure that no cracks have formed at the bottom of the teeth or by the centre hole.
  • Page 22 STARTING AND STOPPING Start throttle: (345FR, 545RX, 545RXT) CAUTION! Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully Set the throttle to the start position by first pressing the extended.
  • Page 23: Working Techniques

    WORKING TECHNIQUES General working instructions 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 IMPORTANT! position yourself incorrectly or make the cut in the This section describes the basic safety precautions for wrong place the tree may hit you or the machine and cause you to lose control.
  • Page 24 WORKING TECHNIQUES • Start at whichever end of the area is easiest, and clear WARNING! Neither the operator of the an open space from which to work. machine nor anyone else may attempt to • Work systematically to and fro across the area, remove the cut material while the engine is clearing a width of around 4-5 m on each pass.
  • Page 25 WORKING TECHNIQUES • To fell to the left, the bottom of the tree should be pushed to the right. Tilt the blade and bring it diagonally down to the right, exerting firm pressure. At the same time push the stem using the blade guard. Cut with the area of the blade between 3 o’clock and 5 o’clock.
  • Page 26 WORKING TECHNIQUES Grass clearing using a grass blade • The cord can easily remove grass and weeds up against walls, fences, trees and borders, however it can also damage sensitive bark on trees and bushes, and damage fence posts. • Reduce the risk of damaging plants by shortening the •...
  • Page 27: Maintenance

    MAINTENANCE Carburetor Proceed as follows: Run the machine at idle. Your Husqvarna product has been designed and Press the start throttle lock as described under the manufactured to specifications that reduce harmful heading Starting and stopping. emissions. If the start throttle speed is too low (below 4000 rpm),...
  • Page 28: Cooling System

    MAINTENANCE Cooling system Check air filter (345FR, 545RX, 545RXT) (paper filter) • Set the choke control in the choke position. • Remove the air filter cover and take out the filter. To keep the working temperature as low as possible the machine is equipped with a cooling system.
  • Page 29: Bevel Gear

    filled three-quarters • Partly mask the air inlet on the starter to increase the full with grease. Use HUSQVARNA special grease. working temperature of the engine. • Preheat the intake air to the carburettor by utilising the The grease in the bevel gear does not normally need to heat from the muffler.
  • Page 30 IMPORTANT! Any maintenance other than that described in this manual must be carried out by your servicing dealer (retailer). IMPORTANT! Use only HUSQVARNA replacement parts. Use of other brands of replacement parts can cause damage to your unit or injury to the operator or others.
  • Page 31: Maintenance Schedule

    MAINTENANCE 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. The user must only carry out the maintenance and service work described in this manual. More extensive work must be carried out by an authorized service workshop.
  • Page 32: Technical Data

    TECHNICAL DATA Technical data 345FR 545RX 545RXT Engine Cylinder displacement, 2.79/45,7 2.79/45,7 2.79/45,7 Cylinder bore, inch/mm 1.65/42 1.65/42 1.65/42 Stroke, inch/mm 1.30/33 1.30/33 1.30/33 Idle speed, rpm 2700 2700 2700 Recommended max. speed, rpm 12200 12200 12200 Speed of output shaft, rpm...
  • Page 33 TECHNICAL DATA 545FX 545FXT Engine Cylinder displacement, 2.79/45,7 2.79/45,7 Cylinder bore, inch/mm 1.65/42 1.65/42 Stroke, inch/mm 1,3/33 1,3/33 Idle speed, rpm 2700 2700 Recommended max. speed, rpm 13000 13000 Speed of output shaft, rpm 10100 10100 Max. engine output, acc. to ISO 8893, kW/ rpm 2,2/9000 2,2/9000 Catalytic converter muffler...
  • Page 34 TECHNICAL DATA 545RX, 545RXT Approved accessories Type Cutting attachment guard, Art. no. Centre hole in blades/cutters, Ø 25,4 Output shaft thread M12 Multi 255-3 (Ø 255 3 teeth) 537 28 85-01 Grass blade/grass cutter Multi 275-4 (Ø 275 4 teeth) 537 28 85-01 Multi 300-3 (Ø...
  • Page 35 TECHNICAL DATA 345FR Approved accessories Type Cutting attachment guard, Art. no. Centre hole in blades/cutters, Ø 25,4 Output shaft thread M12 Multi 255-3 (Ø 255 3 teeth) 537 28 85-01 Grass blade/grass cutter Multi 275-4 (Ø 275 4 teeth) 537 28 85-01 Multi 300-3 (Ø...
  • Page 36 Forest & Garden cannot deny warranty solely for the lack of responsibilities, you should contact your nearest authorized receipts or for your failure to ensure the performance of all servicing dealer or call Husqvarna Forest & Garden at 1-800- scheduled maintenance. As the small nonroad engine 487-5951 or visit
  • Page 39 Auto 55 >1,1 Kw <1,1 Kw 2,7 mm - 9,0 m 3,0 mm - 7,5 m 3,3 mm - 6,0 m 15 cm 6" 15 cm 6" 15 cm 15 cm 6" 6"...
  • Page 40 T45, T45x 10 m 10 cm 4" 4,3 m 15 cm "Clic" 6"...
  • Page 44 Original instructions 1157484-95 ´®z+YPQ¶5}¨ ´®z+YPQ¶5}¨ 2015-04-01...

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