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Husqvarna 550XP TrioBrake User Manual

Husqvarna 550XP TrioBrake
44 pages
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545,
545 TrioBrake
550XP 550XP TrioBrake
550XPG 550XPG TrioBrake
Oper
ator’s manual
Please r
ead the operator’s manual carefully and make sure you understand the instructions before using the machine.
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Husqvarna 550XP TrioBrake Specifications

General IconGeneral
Cylinder Displacement50.1 cm³
Maximum Power Speed10200 rpm
Chain Pitch3/8"
Sound Pressure Level106 dB(A)
Fuel Tank Volume0.52 liters
Oil Tank Volume0.27 l
Recommended Bar Length, Min-Max13-20 in
Chain Gauge0.05 in

Summary

Key Symbols Guide

Machine Symbols and Warnings

Various symbols indicating machine features, safety warnings, and operational indicators.

Operational Symbols

Symbols for refuelling, oiling, adjustments, and starting operations.

Labels and Safety Indicators

Emission Control Information

Details about emission control standards and information.

Safety Labels

Specific warning labels regarding kickback and fire hazards.

Introduction

Dear Customer Greeting

A greeting and introduction to the Husqvarna product.

What Is What?

Identifying Chain Saw Components

A labeled diagram identifying parts of the chain saw.

General Safety Precautions

Pre-Operation Checks

Important checks and precautions before using the chain saw for the first time.

Key Safety Warnings

Critical warnings regarding machine modification, misuse, and hazards.

General Safety Precautions: Usage

Common Sense and PPE

Advice on using common sense and wearing personal protective equipment.

Machine Safety Features

Explanation of the machine's built-in safety equipment.

General Safety Precautions: Chain Brake

Chain Brake Operation

Detailed explanation of how the chain brake is activated and its function.

General Safety Precautions: Kickback and Controls

Kickback Brake Effectiveness

Questions and answers about chain brake activation and protection.

Throttle Lockout and Safety Features

Explanation of throttle lockout, chain catcher, and vibration damping.

General Safety Precautions: Hazards

Vibration and Muffler Safety

Warnings about vibration exposure and muffler safety.

Cutting Equipment Safety

Guidelines for choosing and maintaining cutting equipment.

General Safety Precautions: Cutting Equipment

Kickback Reduction Features

Details on guide bars and chains designed to reduce kickback.

Bar and Chain Terminology

Definitions of terms describing guide bars and saw chains.

General Safety Precautions: Sharpening

Chain Sharpening and Depth Gauge

Instructions and advice on sharpening cutting teeth and adjusting depth gauges.

General Safety Precautions: Adjustment

Depth Gauge Adjustment and Chain Tensioning

Procedures for adjusting depth gauges and tensioning the chain.

Lubrication Requirements

Guidance on lubricating cutting equipment and chain oil.

General Safety Precautions: Lubrication

Chain Lubrication and Sprockets

Checking chain lubrication, drive sprockets, and needle bearing lubrication.

General Safety Precautions: Wear Checks

Cutting Equipment Wear Checks

Daily checks for wear on the chain and guide bar.

Assembly

Fitting the Bar and Chain

Step-by-step instructions for assembling the bar and chain.

Fuel Handling

Fuel Specifications and Mixing

Guidelines for gasoline, two-stroke oil, and fuel mixing ratios.

Chain Oil Recommendations

Advice on selecting and using chain oil.

Fuel Handling: Safety and Storage

Fueling Procedures and Safety

Safe practices for refueling and handling fuel.

Transport and Storage Guidelines

Instructions for transporting and storing the chain saw and fuel.

Starting and Stopping

Starting Procedures

Step-by-step guide for starting the chain saw (cold and warm engines).

Starting and Stopping: Operation

Engaging and Disengaging Chain Brake

Instructions on using the chain brake before and after starting.

Stopping the Engine

Procedure for safely stopping the chain saw engine.

Working Techniques

Pre-Work Checks

Essential checks to perform before operating the chain saw.

General Working Practices

Basic safety rules and techniques for chain saw operation.

Working Techniques: Control

Safe Grip and Stance

Proper hand grip and body positioning for control and safety.

Cutting Techniques and Hazards

Advice on cutting methods and avoiding kickback and workpiece issues.

Working Techniques: Cutting Methods

Basic Cutting Techniques

General principles and terms for cutting wood with a chain saw.

Limbing and Cutting Logs

Techniques for limbing branches and cutting logs safely.

Working Techniques: Felling

Log Cutting Scenarios

How to cut logs based on their position and support.

Tree Felling Technique

Principles of tree felling, including safe distance and felling direction.

Working Techniques: Felling Preparation

Felling Preparation and Cuts

Steps for preparing for felling, including directional and felling cuts.

Working Techniques: Felling Control

Felling Control and Trapped Trees

Ensuring felling control and procedures for freeing trapped trees.

Cutting Tensioned Branches

Safe methods for cutting branches or trees under tension.

Working Techniques: Kickback Avoidance

Avoiding Kickback

Understanding what kickback is and how to prevent it.

Limbing and Log Cutting Techniques

Specific techniques for limbing and cutting logs into sections.

Maintenance

General Maintenance and Carburetor

Overview of user maintenance, carburetor adjustment, and AutoTune system.

Safety Equipment Checks

Instructions for checking and maintaining chain brake and front hand guard.

Maintenance: Controls Checks

Brake and Throttle System Checks

Procedures for checking inertia brake release, brake trigger, and throttle lockout.

Maintenance: Component Checks

Chain Catcher, Guards, and Damping System

Checks for chain catcher, right hand guard, and vibration damping units.

Stop Switch and Muffler Maintenance

Procedures for checking the stop switch and maintaining the muffler.

Maintenance: Starter System

Starter Cord Replacement

Steps for changing a broken or worn starter cord.

Recoil Spring Tensioning

How to tension the recoil spring when fitting the starter.

Maintenance: Filter and Plug

Starter Spring and Air Filter Care

Procedures for changing recoil springs and cleaning the air filter.

Spark Plug Maintenance

Checking and maintaining the spark plug for optimal engine performance.

Maintenance: Lubrication and Cooling

Bar Tip Sprocket and Needle Bearing Lubrication

Lubricating the bar tip sprocket and needle bearing.

Oil Pump Adjustment and Cooling System

Adjusting the oil pump and cleaning the cooling system.

Maintenance: Special Conditions

Air Injection Cleaning and Winter Use

Centrifugal cleaning system maintenance and precautions for winter use.

Heated Handles and Carburetor Heating

Information on heated handles and electrical carburetor heating systems.

Maintenance Schedule

Technical Data

Machine Specifications

Detailed technical data for motor, ignition, fuel, and chain/bar components.

Technical Data: Cutting Equipment

Recommended Cutting Equipment

Lists approved guide bar and saw chain combinations for US models.

Technical Data: Chain Filing

Saw Chain Filing and File Gauges

Specifications for chain filing angles, file gauges, and chain types.

Federal Emission Control Warranty Statement

Warranty Rights and Obligations

Overview of the federal emissions control system warranty for small nonroad engines.

What is Covered and Not Covered

Details on parts covered by warranty and exclusions like abuse or neglect.

Federal Emission Control Warranty: Details

Emission Control Parts List

Lists specific parts covered under the emission control warranty.

Maintenance Statement

Owner's responsibility for performing required maintenance.

American Standard Safety Precautions

Chain Saw User Safety

General safety precautions for chain saw users, including kickback avoidance.

Other Safety Precautions

Additional safety advice covering fatigue, PPE, fuel handling, and operating damaged equipment.

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