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Husqvarna 525 LST User Manual

Husqvarna 525 LST
36 pages
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524 L 525 LST
525 RJD 525 RS
Oper
ator
s manual
Please r
ead the operator’s manual carefully and make sure you understand the instructions
before using the machine.
H1155734-26,524L,525LST,RJD,.fm Page 1 Friday, March 8, 2013 7:19 AM
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Husqvarna 525 LST Specifications

General IconGeneral
Engine Type2-stroke
Displacement25.4 cm³
Shaft TypeStraight
Starter SystemSmart Start
Vibration DampingYes
Power Output1 kW
Fuel Tank Volume0.5 liters
Line Diameter2.0 mm
Cutting AttachmentTap 'n Go trimmer head

Summary

KEY TO SYMBOLS

INTRODUCTION

WHAT IS WHAT?

GENERAL SAFETY PRECAUTIONS

Important Safety Information

Key safety rules and warnings for safe operation of the machine.

Personal Protective Equipment (PPE)

Details on essential protective gear for safe operation.

Machine's Safety Equipment

Throttle Lockout Operation

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

Operational Safety Controls

Stop Switch Function

Instructions on using the stop switch to turn off the engine.

Cutting Attachment Guard

Importance and checks for the cutting attachment guard to prevent thrown objects.

Vibration Damping System

Information about the vibration damping system and its maintenance.

Specific Safety Mechanisms

Quick Release Mechanism

Details on the quick release feature for safety in emergencies.

Muffler Safety and Care

Guidance on checking, cleaning, and safety precautions related to the muffler.

Cutting Attachment Safety and Handling

Locking Nut Usage

Instructions on how to correctly fit and tighten the locking nut for cutting attachments.

Cutting Equipment Selection and Safety

Guidelines for choosing and using cutting attachments, and blade thrust warnings.

Cutting Attachment Best Practices

General Cutting Attachment Rules

Rules for using recommended attachments, sharpening blades, and checking for damage.

Trimmer Head Operation and Care

Best practices for winding trimmer cord, cord length, and trimmer guard cutter.

Sharpening Grass Blades and Knives

Instructions on how to sharpen grass blades and knives correctly.

ASSEMBLY

Fitting the Loop Handle

Step-by-step guide for attaching the loop handle to the shaft.

Fitting the Handlebar

Instructions for assembling the handlebar onto the machine.

Assembling Cutting Equipment

Assembling Cutting Attachments

General instructions for fitting cutting attachments and guards.

Fitting Trimmer Guard and Head

Guide for attaching the trimmer guard and trimmer head correctly.

Two-Piece Shaft Assembly (525 RJD)

Steps for assembling and dismantling the two-piece shaft.

Blade and Harness Assembly

Fitting Blade Guard and Grass Blades

Instructions for attaching blade guards, grass blades, and grass cutters.

Adjusting Harness and Brush Cutter

How to securely hook the brush cutter to the harness for safe operation.

Harness Adjustment for Balance

Standard Harness Adjustment

Steps for fitting and adjusting the harness for comfort and balance.

Achieving Correct Balance

How to adjust the harness suspension for optimal balance during use.

FUEL HANDLING

Fuel Safety Precautions

Warnings and guidelines for safe handling, transport, and storage of fuel.

Fuel Types and Mixing Ratios

Information on recommended petrol, two-stroke oil, and correct mixing ratios.

Fueling Procedures

Fuel Mixing Procedure

Step-by-step guide for correctly mixing petrol and two-stroke oil.

Safe Refueling Practices

Essential precautions to take when refueling the machine to prevent fires.

STARTING AND STOPPING

Pre-Start Checks

Essential inspections of the cutting attachment, guards, and fittings before starting.

Starting and Stopping Procedures

Detailed steps for safely starting and stopping the engine.

Engine Operation Controls

Choke and Engine Starting

Using the choke control and starter cord for engine ignition.

Throttle Control with Start Lock

How to use the throttle trigger and lockout for engine speed control.

WORKING TECHNIQUES

General Working Instructions

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

Basic Safety Rules

Essential safety guidelines covering the working area, weather, and operator stance.

Specific Working Methods

Grass Clearing with a Blade

Techniques for using grass blades and knives for clearing tall or coarse grass.

Trimmer Head Techniques

Guidance on trimming and clearing grass with a trimmer head.

Cutting and Sweeping Techniques

Cutting Grass with Trimmer

Using the trimmer for cutting grass in hard-to-reach areas.

Sweeping Debris with Cord

Using the rotating cord for clearing up loose material.

MAINTENANCE

Carburettor Adjustment and Settings

Information on carburettor function, idle speed, and fuel mix adjustments.

Idle Speed Adjustment

Procedure for adjusting the idle speed screw to stop cutting attachment rotation.

Component Maintenance Procedures

Adjusting Start Throttle Speed

Procedure for setting the correct start throttle speed using an adjuster screw.

Muffler Safety and Care

Guidance on cleaning spark arrestor mesh and safety for catalytic converters.

Engine System Maintenance

Cooling System Cleaning

Importance of cleaning the cooling system to prevent overheating and engine damage.

Spark Plug Maintenance

Factors affecting spark plug condition and how to clean and check the electrode gap.

Air Filter Cleaning and Replacement

Steps for cleaning the air filter to ensure optimal engine performance and prevent wear.

Further Maintenance Tasks

Detailed Air Filter Cleaning

Comprehensive guide on cleaning the air filter, including felt filters and replacement.

Bevel Gear Lubrication

Information on checking and maintaining the grease level in the bevel gear.

Maintenance Schedule

Maintenance Schedule Overview

A table outlining daily, weekly, and monthly maintenance tasks for the machine.

TECHNICAL DATA

Engine Technical Data

Detailed specifications for engine displacement, speed, output, and ignition system.

Fuel and Lubrication System Data

Information on carburettor type, fuel tank capacity, and weight.

Noise and Vibration Levels

Reported data for equivalent sound pressure and vibration levels.

Approved Accessories

Approved Cutting Attachments

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

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