Husqvarna 545FR User Manual

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

Husqvarna 545FR Specifications

General

Engine Power	2.1 kW
Cylinder Displacement	45.7 cm³
Fuel Tank Volume	0.9 L
Weight (excluding cutting equipment)	8.9 kg
Sound Power Level, Guaranteed (LWA)	117 dB(A)
Engine type	2-stroke

Summary

Key to Symbols

Introduction

What is What?

What is what on the brush cutter?

Identifies and labels all parts of the brush cutter, providing a visual guide.

General Safety Precautions

Measures Before Use

Essential steps and checks to perform before operating the clearing saw, brushcutter, or trimmer.

Personal Protective Equipment

Details required protective gear like helmets, hearing, eye protection, and gloves for safe operation.

Machine's Safety Equipment

Explains the purpose and checks for the machine's safety features to ensure correct operation.

Throttle Trigger Lockout

Describes the function and operation of the throttle lockout mechanism for preventing accidental acceleration.

Stop Switch

Explains how to use the stop switch to safely turn off the machine's engine.

Cutting Attachment Guard

Details the function of the guard and instructions for checking its condition for safety.

Vibration Damping System

Explains the machine's vibration damping system designed to minimize user fatigue.

Quick Release Harness Feature

Describes the quick release feature on the harness for emergency situations.

Muffler Safety and Maintenance

Covers muffler function, safety precautions, and maintenance related to noise and exhaust.

Locking Nut Safety

Explains the importance of the locking nut for securing cutting attachments and its wear limits.

Cutting Equipment Safety

Guidelines for choosing, maintaining, and safely using cutting attachments like blades and trimmer heads.

Assembly

Handlebar and Throttle Assembly

Step-by-step instructions for assembling the handlebar and throttle components.

Handlebar Transport Position

How to adjust the handlebar for convenient transportation and storage.

Cutting Equipment Assembly

Instructions for safely attaching the cutting equipment to the machine.

Guard Extension Fitting

Procedure for fitting or removing the guard extension based on the cutting attachment used.

Blade/Combination Guard Fitting

Details on how to fit the blade guard/combination guard with grass blades or cutters.

Blade Guard and Saw Blade Fitting

Instructions for attaching the blade guard and saw blade to the machine.

Other Guards and Attachments

Guidance on fitting various guards and cutting attachments not covered previously.

Harness and Machine Adjustment

Steps to adjust the harness and hang the machine for comfortable working position.

Balance X Harness Adjustment

Instructions for adjusting the Balance X harness for optimal fit and comfort.

Balance XT Harness Adjustment

Instructions for adjusting the Balance XT harness for optimal fit and comfort.

Correct Machine Balance

How to achieve correct balance of the machine for efficient operation and reduced strain.

Fuel Handling

Fuel Safety Precautions

Important safety guidelines to follow when handling fuel to prevent fire and exposure.

Husqvarna Alkylate Fuel

Information and recommendations regarding the use of Husqvarna alkylate fuel.

Two-Stroke Oil and Mixing

Guidance on selecting and mixing two-stroke oil with petrol for the engine.

Fuel Mixing Procedure

Detailed steps for correctly mixing petrol and two-stroke oil for the fuel tank.

Fueling Safety and Procedure

Safe practices and steps for refueling the machine, emphasizing fire prevention.

Starting and Stopping

Pre-Start Checks

Essential checks to perform on the machine before attempting to start the engine.

Starting and Stopping Procedure

Step-by-step instructions for safely starting and stopping the machine's engine.

Cold Engine Starting

Procedure for starting the engine when it is cold, using the choke and primer.

Warm Engine Starting

Procedure for starting the engine when it is warm, without using the choke.

Start Throttle Operation

Explanation of the start throttle function for specific models (545FR, 545RX, 545RXT).

Decompression Valve Use

How to use the decompression valve to make starting the engine easier.

Engine Stopping Procedure

Instructions on how to safely stop the engine of the machine.

Heated Handles Operation

Information on how to operate the heated handles feature on applicable models.

Working Techniques

General Working Instructions

Basic safety precautions and advice for working with brush cutters and trimmers.

Basic Safety Rules

Fundamental safety guidelines to follow during operation, including situational awareness and footing.

Working Methods

Guidance on various techniques and methods for efficient and safe operation.

Forestry Clearing with Saw Blade

Specific techniques and safety considerations for clearing trees using a saw blade.

Brush Cutting with Saw Blade

Techniques for cutting thin stems and brush using a saw blade, including safety tips.

Grass Clearing with Grass Blade

Instructions for clearing coarse grass using a grass blade and safe cutting practices.

Grass Trimming with Trimmer Head

Techniques for trimming grass with a trimmer head, including cord management and safety.

Trimmer Head Cutting Technique

How to use the trimmer head for cutting grass in hard-to-reach areas.

Sweeping Technique

Using the trimmer head's fan effect for quick clearing and cleanup.

Maintenance

Carburettor Adjustment

Instructions for adjusting the idle speed of the carburettor for optimal performance.

Muffler Safety and Maintenance

Information on muffler maintenance, including cleaning and safety precautions.

Cooling System Maintenance

Steps for cleaning the cooling system to prevent overheating and engine damage.

Air Filter Cleaning and Replacement

Procedure for cleaning or replacing the air filter to ensure proper engine function.

Spark Plug Maintenance

Guidance on checking, cleaning, and replacing the spark plug for reliable starting.

Winter Use Precautions

Special measures and adjustments needed for operating the machine in cold weather.

Wire Lubrication (545FXT)

Instructions for lubricating the wire on the 545FXT model when needed.

Troubleshooting Guide

A schedule of common problems, their possible causes, and recommended actions.

Maintenance Schedule

A detailed schedule outlining daily, weekly, and monthly maintenance tasks.

Technical Data

Engine Specifications

Technical details of the engine, including displacement, bore, stroke, and speed.

Ignition System Details

Information about the spark plug type and electrode gap for the ignition system.

Fuel and Lubrication System Specs

Specifications for fuel tank capacity and lubrication system.

Machine Weight Specifications

Weight of the machine without fuel, cutting attachment, and guard.

Noise Emissions Data

Measured and guaranteed sound power levels of the machine.

Sound Pressure Levels

Equivalent sound pressure levels at the operator's ear for different attachments.

Vibration Level Data

Equivalent vibration levels at the handles for different cutting attachments.

Approved Accessories and Guards

List of approved accessories, their types, and corresponding cutting attachment guard part numbers.

EC Declaration of Conformity

Official declaration that the product complies with relevant EU directives and standards.