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.
KEY TO SYMBOLS Symbols Air purge 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 important that you read and understand the contents of the operator's manual. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Choke: Set the choke control in the choke position.
CONTENTS Contents KEY TO SYMBOLS Symbols ................................................................ CONTENTS Contents ............................................................... INTRODUCTION Dear Customer, .................................................... WHAT IS WHAT? What is what on the brush cutter? ........................ GENERAL SAFETY PRECAUTIONS Measures to take before using new clearing saws, brushcutters or trimmers. ...................................... Important ...................
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. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant.
WHAT IS WHAT? 545FX, FXT 345FR, 545RX,RXT 9 9 4 10 5 8 11 8 6 11 7 12 13 15 28 14 16 26 27 3 17 21 18 29 1 25 24 20 26 19 27 25 24 2 24 22 25 30 31 33 23 32 What is what on the brush cutter? 1 Grass blade (345FR, 545RX, 545RXT) 18 Starter handle 2 Saw blade (345FR, 545FX, 545FXT) 19 Air purge 3 Trimmer head (345FR, 545RX, 545RXT) 20 Air filter cover 4 Bevel gear 21 Choke control 5 Grease filler cap, bevel gear 22 Harness, quick release 6 Drive shaft tube
GENERAL SAFETY PRECAUTIONS Measures to take before using new clearing saws, brushcutters or trimmers. • Please read this manual carefully. • Check that the locking nut of the cutting equipment is tighten correctly. See instructions under the heading Assembly. ! ! ! WARNING! Long-term exposure to noise can result in permanent hearing impairment. Always use approved hearing protection. WARNING! Under no circumstances may the design of the machine be modified without the permission of the manufacturer.
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. You must use approved personal protective equipment whenever you use the machine.
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. This movement is controlled by two independent return springs.
GENERAL SAFETY PRECAUTIONS Use of incorrectly wound cord or an incorrect cutting attachment increases the level of vibration. See instructions under the heading Cutting equipment. fitted with a catalytic converter is also designed to reduce harmful exhaust gases. The machine′s vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machine′s handle unit. In countries that have a warm and dry climate there is a significant risk of fire.
GENERAL SAFETY PRECAUTIONS ! WARNING! The inside of the muffler contain chemicals that may be carcinogenic. Avoid contact with these elements in the event of a damaged muffler. IMPORTANT! The exhaust fumes from the engine are hot and may contain sparks which can start a fire. Never start the machine indoors or near combustible material! Locking nut Cutting equipment This section describes how to choose and maintain your cutting equipment in order to: • Reduce the risk of blade thrust.
GENERAL SAFETY PRECAUTIONS Shredder blades are intended for cutting coarse grass and bushes. Sharpening grass knifes and grass blades • See the cutting attachment packaging for correct sharpening instructions. Sharpen blades and knifes using a single-cut flat file. • Sharpen all edges equally to maintain the balance of the blade. A trimmer head is intended for trimming grass. General rules Only use cutting attachments with the guards we recommend! See the chapter on Technical data.
GENERAL SAFETY PRECAUTIONS Sharpening the saw blade Trimmer head IMPORTANT! • A correctly sharpened blade is essential for working efficiently and to avoid unnecessary wear to the blade and brush cutter. • • Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration. See the cutting attachment packaging for correct sharpening instructions. Make sure that the blade is well supported when you file it. Use a 5.
ASSEMBLY Assembling the handlebar and throttle CAUTION! Some models have the throttle handle fitted at the factory. • Remove the screw at the rear of the throttle handle. • Slide the throttle handle onto the right side of the handlebar, (see diagram). Transport position, handlebar • The handlebar can easily be turned to fit along the shaft for easier transportation and storage. • Loosen the knob. Turn the handlebar clockwise so that the throttle handle rests against the engine.
ASSEMBLY Fitting the guard extension 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 grass blade and combination guard. Enter the guard extension guide in the slot of the combination guard. Then click the guard extension into position on the guard with the four quick-fasteners.
ASSEMBLY Fitting the blade guard and saw blade • Place the blade (D) and support flange (F) on the output shaft. G F D CAUTION! Always use the recommended guard for the cutting attachment you are using. See chapter on Technical data. 545FX, 545FXT • B The blade guard (A) is fitted using 4 screws (L) as shown. C L A • 345FR, 545RX, 545RXT • Fit the holder (R) and bracket (J) with 2 bolts (H) on the gear housing. • Then fasten the blade guard (A) with 4 bolts (L) in the holder (N).
ASSEMBLY Fitting other guards and cutting attachments • Fit the trimmer guard/combination guard (A) intended for use with the trimmer head/plastic blades. Hang the trimmer guard/combination guard (A) on the two hooks on the plate holder (M). Bend the guard around the shaft and tighten it with the bolt (L) on the opposite side of the shaft. Use the locking pin (C). Place the locking pin in the groove on the screw head and tighten. See diagram.
ASSEMBLY 3 Adjust the shoulder strap to distribute the load evenly across your shoulders. Press downwards on the suspension hook to load the harness. Balance XT (545FX, 545FXT, 545RXT) 4 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 from the harness.
ASSEMBLY 2 Tighten the hip strap so that it sits securely. 9 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. 10 The elastic strap (B) can be tightened to transfer more load from the shoulder straps to the hip strap. 3 The hip belt should hang roughly in line with the hip bone. 4 Press the breast plate together.
FUEL HANDLING Fuel safety Petrol Never start the machine: 1 If you have spilled fuel on it. Wipe off the spillage and allow remaining fuel to evaporate. 2 If you have spilled fuel on yourself or your clothes, change your clothes. Wash any part of your body that has come in contact with fuel. Use soap and water. 3 If the machine is leaking fuel. Check regularly for leaks from the fuel cap and fuel lines.
FUEL HANDLING Fueling Mixing • Always mix the petrol and oil in a clean container intended for fuel. • Always start by filling half the amount of the petrol to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of petrol. • ! Mix (shake) the fuel mixture thoroughly before filling the machine’s fuel tank. WARNING! Taking the following precautions, will lessen the risk of fire: Mix and pour fuel outdoors, where there are no sparks or flames.
STARTING AND STOPPING Check before starting • Check the blade to ensure that no cracks have formed at the bottom of the teeth or by the centre hole. The most common reason why cracks are formed is that sharp corners have been formed at the bottom of the teeth while sharpening or that the blade has been used with dull teeth. Discard a blade if cracks are found. • Never use the machine without a guard nor with a defective guard.
STARTING AND STOPPING Start throttle: (345FR, 545RX, 545RXT) Set the throttle to the start position by first pressing the throttle lockout and the throttle trigger, then pressing the start throttle button (A). Then release the throttle lockout and the throttle trigger, followed by the start throttle button. The throttle function is now activated. To return the engine to idle, press the throttle lockout and throttle trigger again.
WORKING TECHNIQUES General working instructions 5 Take great care when cutting a tree that is in tension. A tree that is in 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. Both situations can cause serious personal injury. 6 Keep a good balance and a firm foothold. Do not overreach. Keep proper footing and balance at all times.
WORKING TECHNIQUES ! WARNING! Neither the operator of the machine nor anyone else may attempt to remove the cut material while the engine is running or the cutting equipment is rotating, as this can result in serious injury. • Work systematically to and fro across the area, clearing a width of around 4-5 m on each pass. This exploits the full reach of the machine in both directions and gives the operator a convenient and varied working area to work in. • Clear a strip around 75 m long.
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. Apply full throttle before advancing the blade. • If the stems are tightly packed, adapt your walking pace to suit. • If the blade jams in a stem, never jerk the machine free.
WORKING TECHNIQUES Grass clearing using a grass blade • Grass blades and grass knifes must not be used on woody stems. • A grass blade is used for all types of tall or coarse grass. • The grass is cut down with a sideways, swinging movement, where the movement from right-to-left is the clearing stroke and the movement from left-toright is the return stroke. Let the left-hand side of the blade (between 8 and 12 o’clock) do the cutting.
MAINTENANCE Carburettor Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. Adjustment of the idle speed Proceed as follows: 1 Run the machine at idle. 2 Press the start throttle lock as described under the heading Starting and stopping. 3 If the start throttle speed is too low (below 4000 rpm), turn the adjuster screw A clockwise until the cutting attachment starts to rotate. Then turn A clockwise a further 1/2 turn.
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. • Check and clean filter housing. • Check the filter and change if contaminated or damaged. Use Husqvarna original filters. To achieve correct operating temperature, the machine must be equipped with a cooling system. The cooling system consists of: 4 3 1 IMPORTANT! Never bend or fold a filter as it can be damaged.
MAINTENANCE Bevel gear The bevel gear is filled with the right quantity of grease at the factory. However, before using the machine you should check that the bevel gear is filled three-quarters full with grease. Use HUSQVARNA special grease. The grease in the bevel gear does not normally need to be changed except if repairs are carried out. CAUTION! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/ cylinder.
MAINTENANCE Lubrication of wire (545FXT) NOTE! The wire is pre-lubricated and does not need to be lubricated again until required. • Remove the protective cover. • Unscrew the cylinder cover and make sure the rubber bellows on the wire has not been expanded too much. • Unscrew the plug on the grease nipple. • Use antifreeze spray with a 2 mm spray tube. Spray in short bursts. • Fit covers.
MAINTENANCE Troubleshooting schedule Starting failure Check Stop button Possible Cause Action Stop position Set the stop switch to the start position. Adjust or replace the pawls. Pawls Binding pawls Clean around the pawls. Contact an authorised service workshop. Fuel tank Incorrect fuel type Drain it and use correct fuel. Carburettor Adjustment of the idle speed Adjust the idling speed with the Tscrew. Spark plug contaminated or wet Make sure that the spark plug is dry and clean.
MAINTENANCE Maintenance schedule The following is a list of the maintenance steps 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 Operator's Manual. More extensive work must be carried out by an authorized service workshop. Maintenance Daily Weekly Monthly maintenance maintenance maintenance Clean the outside of the machine. X Check that the harness is not damaged.
TECHNICAL DATA Technical data 345FR 545RX 545RXT Engine Cylinder displacement, cm3 45,7 45,7 45,7 Cylinder bore, mm 42 42 42 Stroke, mm 33 33 33 Idle speed, rpm 2700 2700 2700 Speed of output shaft, rpm 8800 8800 8800 Max. engine output, acc.
TECHNICAL DATA 545FX 545FXT Engine Cylinder displacement, cm3 45,7 45,7 Cylinder bore, mm 42 42 Stroke, mm 33 33 Idle speed, rpm 2700 2700 Speed of output shaft, rpm 10100 10100 Max. engine output, acc.
TECHNICAL DATA 545RX, 545RXT Approved accessories Type Centre hole in blades/cutters, Ø 25,4 mm Output shaft thread M12 Grass blade/grass cutter Saw blade Plastic blades Cutting attachment guard, Art. no.
TECHNICAL DATA 345FR Approved accessories Type Centre hole in blades/cutters, Ø 25,4 mm Output shaft thread M12 Grass blade/grass cutter Saw blade Plastic blades Cutting attachment guard, Art. no.
Auto 55 1 2 3 >1,1 Kw 1.) <1,1 Kw 2.) 2,7-3,3 mm .106-.
T45, T45x 2 3 2,7-3,3 mm .106-.
Original instructions 1157484-26 ´®z+YPJ¶6[¨ ´®z+YPJ¶6[¨ 2017-01-09
