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 Decompression valve: The valve is to reduce the pressure in the cylinder and make starting easier. You should always use the decompression valve when starting the machine. 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. Air purge.
CONTENTS Contents KEY TO SYMBOLS Symbols ................................................................ CONTENTS Contents ............................................................... Note the following before starting: ........................ INTRODUCTION Dear customer! ..................................................... WHAT IS WHAT? What is what on the brush cutter? ........................ What is what on the brush cutter? ........................ What is what on the brush cutter? ...............
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. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant.
WHAT IS WHAT? 3 8 2 32 31 5 17 9 7 33 10 18 35 6 19 13 11 20 1 22 23 14 34 12 34 4 21 4 21 16 15 25 26 30 27 28 29 24 What is what on the brush cutter? (545 RX, 545 RXT) 1 Grass blade 19 Support cup 2 Grease filler cap, bevel gear 20 Support flange 3 Bevel gear 21 Drive disc 4 Cutting attachment guard 22 Trimmer head 5 Shaft 23 Spark plug cap and spark plug 6 Handlebar 24 Socket spanner 7 Throttle trigger 25 Operator’s manual 8 Stop switch 26 Transport guard
WHAT IS WHAT? 8 3 2 7 18 5 9 29 17 10 30 6 13 11 18 19 1 21 14 12 20 4 23 16 15 24 22 28 25 26 27 What is what on the brush cutter? (545 FX, 545 FXT) 1 Saw blade 16 Air filter cover 2 Grease filler cap, bevel gear 17 Handle adjustment 3 Bevel gear 18 Locking nut 4 Cutting attachment guard 19 Support flange 5 Shaft 20 Drive disc 6 Handlebar 21 Spark plug 7 Throttle trigger 22 Socket spanner 8 Stop switch 23 Operator’s manual 9 Throttle lockout 24 Transport guard
WHAT IS WHAT? 8 3 2 33 19 5 9 7 17 34 10 35 6 13 11 25 12 23 22 21 19 18 14 24 4 20 16 1 15 21 22 1 4 20 4 20 32 26 30 27 28 29 31 What is what on the brush cutter? (345 FR) 1 Blade 19 Locking nut 2 Grease filler cap, bevel gear 20 Drive disc 3 Bevel gear 21 Support flange 4 Cutting attachment guard 22 Metal cup 5 Shaft 23 Support cup 6 Handlebar 24 Locking screw 7 Throttle trigger 25 Trimmer head 8 Stop switch 26 Transport guard 9 Throttle lockout
GENERAL SAFETY PRECAUTIONS Important Personal protective equipment IMPORTANT! IMPORTANT! The machine is only designed for trimming grass, grass clearing and/or forestry clearing. 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.
GENERAL SAFETY PRECAUTIONS BOOTS Throttle lockout Wear boots with steel toe-caps and non-slip sole. 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 be checked. See instructions under the heading Maintenance. Vibration damping system Your machine is equipped with a vibration damping system that is designed to reduce vibration and make operation easier. Stop switch Use the stop switch to switch off the engine. Use of incorrectly wound cord or an incorrect cutting attachment increases the level of vibration. See instructions under the heading Cutting equipment.
GENERAL SAFETY PRECAUTIONS cutter. Certain harnesses also have a quick release fitted to the support hook. If the muffler on your machine is fitted with a spark arrestor screen this must be cleaned regularly. A blocked screen will cause the engine to overheat and may lead to serious damage. Check that the harness straps are correctly positioned. Once the harness and machine have been adjusted, check that the harness quick release works correctly.
GENERAL SAFETY PRECAUTIONS should operate the socket spanner when loosening or tightening the nut. The nylon lining inside the locking nut must not be so worn that you can turn it by hand. The lining should offer a resistance of at least 1.5 Nm. The nut should be replaced after it has been put on approx. 10 times. ! ! WARNING! Always stop the engine before doing any work on the cutting attachment. This continues to rotate even after the throttle has been released.
GENERAL SAFETY PRECAUTIONS incorrectly sharpened or damaged blade increases the risk of accidents. Sharpening the saw blade • Keep the correct setting on the saw blade! Follow our instructions and use the recommended setting tool. An incorrectly set saw blade increases the risk of jamming and blade thrust, and damage to the saw blade. See the cutting attachment packaging for correct sharpening instructions.
GENERAL SAFETY PRECAUTIONS Trimmer head IMPORTANT! Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration. • Only use the recommended trimmer heads and trimmer cords. These have been tested by the manufacturer to suit a particular engine size. This is especially important when a fully automatic trimmer head is used. Only use the recommended cutting attachment. See the chapter on Technical data.
ASSEMBLY Assembling the handlebar and throttle • CAUTION! Some models have the throttle handle fitted at the factory. • The handlebar can easily be turned to fit along the shaft for easier transportation and storage. • Remove the screw at the rear of the throttle handle. • • Slide the throttle handle onto the right side of the handlebar, (see diagram). Loosen the knob. Turn the handlebar clockwise so that the throttle handle rests against the engine. • Now twist the handlebar around the shaft.
ASSEMBLY Fitting the blade guard/ combination guard, grass blade and ball-bearing-mounted support cup • must remain inside the gear housing to lock the drive disk. Hold the shaft of the socket spanner as close to the blade guard/combination guard as possible. 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).
ASSEMBLY • Then fasten the blade guard (A) with 4 bolts (L) in the holder (N). operate the socket spanner when loosening or tightening the nut. H J K R L A • Fit the drive disc (B) on the output shaft. • Turn the blade shaft until one of the holes in the drive disc aligns with the corresponding hole in the gear housing. • Insert the locking pin (C) in the hole to lock the shaft. • Place the blade (D) and support flange (F) on the output shaft.
ASSEMBLY • Screw on the trimmer head (H) in the opposite direction to the direction of rotation. • To dismantle, follow the instructions in the reverse order. Adjusting the harness and brush cutter H ! C • Tighten the trimmer head to a torque of 35-50 Nm (3.5-5 kpm). • To dismantle, follow the instructions in the reverse order. WARNING! When using a brush cutter it must always be hooked securely to the harness.
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 Gasoline 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 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. Add the remaining amount of gasoline. • ! 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.
STARTING AND STOPPING Start throttle: (345 FR, 545 RX, 545 RXT) 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 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. IMPORTANT! This section describes the basic safety precautions for working with brush cutters and trimmers. If you encounter a situation where you are uncertain how to proceed you should ask an expert. Contact your dealer or your service workshop.
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. • To fell to the right, the bottom of the tree should be pushed to the left. Tilt the blade and bring it diagonally up to the right.
WORKING TECHNIQUES Grass clearing using a grass blade can also damage sensitive bark on trees and bushes, and damage fence posts. • • 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.
MAINTENANCE Carburetor 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 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. 4 Cooling system To keep the working temperature as low as possible the machine is equipped with a cooling system.
MAINTENANCE Cleaning the air filter Spark plug Remove the air filter cover and take out the filter. Wash it clean in warm, soapy water. The spark plug condition is influenced by: • Incorrect carburetor adjustment. • An incorrect fuel mixture (too much or incorrect type of oil). • A dirty air filter. These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.
MAINTENANCE • Hot air is then supplied to the carburettor from the muffler. • Fit a cover over the starter in snowy conditions. IMPORTANT! The machine MUST be returned to its standard design at temperatures warmer than 5°C (41°F). Otherwise there is a risk of overheating resulting in serious engine damage. 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.
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. Maintenance Daily maintenance Clean the outside of the machine. X Check that the harness is not damaged.
TECHNICAL DATA Technical data 345 FR 545 RX 545 RXT Motor Cylinder displacement, cu.in/cm3 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 8800 8800 8800 Max. engine output, acc.
TECHNICAL DATA 545 FX 545 FXT Motor Cylinder displacement, cu.in/cm3 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 No No Ignition system Spark plug NGK CMR6H NGK CMR6H Electrode gap, inch/mm 0.02/0,5 0.
TECHNICAL DATA 545 RX, 545 RXT Approved accessories Type Centre hole in blades/cutters, Ø 25,4 mm Output shaft thread M12 Grass blade/grass cutter Saw blade Plastic blades Trimmer head Support cup Cutting attachment guard, Art. no.
TECHNICAL DATA 345 FR Approved accessories Type Centre hole in blades/cutters, Ø 25,4 mm Output shaft thread M12 Grass blade/grass cutter Saw blade Plastic blades Trimmer head Support cup Cutting attachment guard, Art. no.
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 2009 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.
Trimmy SII 1 2,4-3,3 mm .095"-.
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 1155058-95 ´®z+W%y¶5'¨ ´®z+W%y¶5'¨ 2012-08-10