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Stihl FR 350 User Manual

Stihl FR 350
50 pages
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Instruction Manual
STIH)
STIHL FR 350, 450, 480
BA_FR350_01_U_B4.book Seite 0 Dienstag, 20. Januar 2004 5:35 17
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Stihl FR 350 Specifications

General IconGeneral
BrandStihl
ModelFR 350
CategoryBrush Cutter
LanguageEnglish

Summary

Guide to Using this Manual

Pictograms

Explains symbols used in the manual for clarity.

Symbols in text

Details different ways text steps are presented for ease of understanding.

Equipment and features

Describes components that may vary or be optional accessories.

Engineering improvements

Explains STIHL's commitment to continuous product improvement.

Safety Precautions and Working Techniques

General Safety Warnings

Covers essential safety rules for operating the brushcutter, including user fitness and environmental considerations.

Pacemaker Information

Advises users with pacemakers about potential electromagnetic interference from the unit.

Clothing and Equipment

Protective Clothing Requirements

Specifies types of clothing, footwear, headwear, eye, and hearing protection needed.

Transporting the Unit

Transporting in a vehicle

Provides instructions on how to safely secure the unit when transporting it in a vehicle.

Fueling

Gasoline Safety

Highlights hazards of gasoline and precautions like no smoking or fueling hot engines.

Fueling Procedure

Details steps for safe fueling, including cap handling and spill prevention.

Before Starting

Pre-Operation Checks

Outlines pre-operation checks and preparations to ensure the machine is safe and ready.

Starting the Engine

Engine Starting Procedure

Details the correct procedure for starting the brushcutter's engine safely.

Holding and Controlling the Unit

Unit Handling and Balance

Explains how to properly hold and maintain balance and control of the brushcutter.

During Operation

Emergency Procedures

Covers emergency shutdown and throwing off the brushcutter.

Bystander Safety

Ensures bystanders stay clear of the operating area to prevent injury.

General Operating Safety

Environmental and Operational Safety

Addresses slippery conditions, obstacles, hearing protection, and exhaust fumes.

Exhaust Fume Hazards

Warns about the dangers of toxic exhaust fumes and the need for proper ventilation.

Thrown Object Hazards

Emphasizes the risk of injury from thrown objects and the need for proper deflectors.

Cutting Tool Usage and Maintenance

When using mowing heads

Provides specific instructions for using and maintaining mowing heads.

When using metal cutting tools

Gives guidance on sharpening and safe use of metal cutting tools.

Cutting Tool Symbols and Types

Symbols on Deflectors

Explains the meaning of arrows on deflectors and their usage with mowing heads.

Mowing Head with Nylon Line

Details the use of nylon line for edging and trimming safely.

STIHL PolyCut Cutting Head

Describes the STIHL PolyCut head and its wear limits for safe operation.

Cutting Blade Safety and Types

Risk of Kickout

Explains the danger of kickout with rigid cutting blades and how it occurs.

Grass Cutting Blade

Provides usage instructions for grass cutting blades, including sweeping technique.

Brush Knife

Details the application and safe usage of the brush knife for cutting scrub and young stands.

Assembling the Brushcutter

Mounting the Support Frame

Step-by-step instructions for attaching the support frame to the powerhead.

Installing the Flexible Shaft

Guide on how to correctly connect the flexible shaft to the powerhead and drive tube.

Mounting the Loop Handle

Mounting the Loop Handle with Barrier Bar

Instructions for fitting the loop handle and barrier bar.

Mounting the Loop Handle without Barrier Bar

Instructions for fitting the loop handle without the barrier bar.

Securing the Loop Handle

Loop Handle Securing

Details how to properly secure the loop handle to the control handle.

Fitting the Throttle Cable

Throttle Cable Routing

Steps for correctly routing and securing the throttle cable along the shaft.

Adjusting the Throttle Cable

Throttle Cable Adjustment Procedure

Explains how to adjust the throttle cable for proper engine speed control.

Approved Combinations of Cutting Tool, Deflector and Handle

Cutting Tools List

Enumerates the different STIHL cutting tools available for the brushcutter.

Deflectors List

Lists the various deflectors compatible with the brushcutter.

Handles List

Identifies the types of handles that can be fitted to the brushcutter.

Approved Combinations Summary

Provides guidance on selecting correct combinations for safety and to avoid accidents.

Approved Power Tool Attachments

Mounting the Deflector

Instructions for mounting different types of deflectors onto the brushcutter.

Fitting skirt and blade

Details how to attach the skirt and blade to the deflector for mowing heads.

Mounting the Cutting Tools

Preparing the Brushcutter

Steps to prepare the brushcutter for mounting cutting tools.

Mounting Hardware for Cutting Tools

Explains the hardware used for mounting different cutting tools.

Scope of supply for metal cutting tools

Lists the parts included for mounting metal cutting tools.

Scope of supply for mowing heads

Lists the parts included for mounting mowing heads.

Blocking the Drive Shaft

Drive Shaft Blocking Method

Describes the method to block the drive shaft for safe cutting tool installation.

Mounting the Mowing Head

STIHL Mowing Head Mounting

Instructions for mounting specific STIHL mowing heads like SuperCut and AutoCut.

STIHL FixCut 25-2 Mounting

Instructions for mounting the STIHL FixCut 25-2 mowing head.

Removing the Mowing Head

STIHL Mowing Head Removal

Steps for removing specific STIHL mowing heads.

STIHL FixCut 25-2 Removal

Steps for removing the STIHL FixCut 25-2 mowing head.

Adjusting Nylon Line

STIHL SuperCut Line Adjustment

How to adjust the nylon line on the STIHL SuperCut mowing head.

Other Mowing Heads Line Adjustment

Refers to separate instructions for adjusting line on other mowing heads.

Replacing Nylon Line or Cutting Blades

Line/Blade Replacement Guidance

Directs users to separate instructions for replacing lines or blades.

Mounting Metal Cutting Tools

Metal Cutting Tool Mounting

Instructions for mounting metal cutting tools, noting deflector requirements.

Fuel

Gasoline Selection and Use

Guidance on selecting and using appropriate gasoline for the engine.

Engine Oil Selection

Recommendations for choosing and using two-stroke engine oil.

Fuel-Oil Mix Ratio

Specifies correct fuel-oil mix ratios for STIHL engines.

STIHL MotoMix Information

Information about STIHL's ready-to-use fuel mix.

Mixing Fuel Precautions

Warnings about using unsuitable fuels or incorrect mix ratios.

Storing Fuel

Safe Fuel Storage Guidelines

Guidelines for safely storing fuel, including fuel mix aging.

Fueling

Fueling Procedure Steps

Detailed steps for safely filling the fuel tank.

Fuel Pickup Body Replacement

Instructions for replacing the fuel pickup body annually.

Fitting Backpack

Adjusting the harness straps

Steps to adjust the harness straps for a comfortable fit.

Adjusting backpack fit

How to adjust the backpack for proper fit and security.

Removing backpack

Instructions on how to safely remove the backpack.

Starting / Stopping the Engine

Controls Overview

Identifies and explains the function of the main operating controls.

Positions of Slide Control

Describes the different positions of the slide control and their meaning.

Starting Procedure

Step-by-step guide for starting the engine, including choke and decompression valve usage.

Starting the Engine

Unit Placement and Securing

Ensures correct unit placement and secure footing before starting.

Starter Rope Operation

Details proper technique for pulling the starter rope without damage.

Engine Ignition and Idle Speed

Actions to take once the engine starts firing, including choke adjustment and idle speed.

Stopping the Engine

Engine Stop Procedure

How to safely stop the engine and what to do at very low temperatures.

Starting Troubleshooting: Flooded Engine

Troubleshooting steps for a flooded engine or if it fails to start.

Starting Troubleshooting: Persistent Issues

Further troubleshooting for persistent starting issues, including spark plug checks.

Operating Instructions

Break-in Period Operation

Guidance on how to operate the machine during its initial break-in phase.

Post-Operation Engine Cooling

Advice on running the engine at idle after prolonged full-throttle use.

Storing the Machine

Instructions for short and long-term storage of the machine.

Cleaning the Air Filter

FR 350 Air Filter Cleaning

Specific steps for cleaning the air filter on the FR 350 model.

FR 450, FR 480 Air Filter Cleaning

Specific steps for cleaning the air filter on the FR 450 and FR 480 models.

Adjusting the Carburetor

Carburetor General Information

Overview of the carburetor's factory settings and adjustment capabilities.

Standard Carburetor Setting

Steps for setting the carburetor to its standard configuration.

Adjusting Idle Speed

Engine Stalling at Idle

Correcting idle speed to prevent engine stalling.

Cutting Tool Rotation at Idle

Adjusting idle speed when the cutting tool spins at idle.

Erratic Idling and Acceleration Issues

Troubleshooting erratic idling and poor acceleration.

High Altitude Carburetor Tuning

Adjusting the carburetor for optimal performance at higher altitudes.

Checking the Spark Plug

Spark Plug Fouling Causes

Addressing common causes of spark plug fouling like fuel mix or dirty air filter.

Spark Plug Replacement

When and how to replace the spark plug for optimal performance.

Engine Running Behavior

Diagnosing Unsatisfactory Running

Discusses potential causes of unsatisfactory engine running behavior, possibly related to the muffler.

Lubricating the Gearbox

Gearbox Lubrication Procedure

Instructions on checking and replenishing grease in the gearbox.

Lubricating the Flexible Shaft

Flexible Shaft Lubrication

Details the procedure for lubricating the flexible shaft for smooth operation.

Replacing Starter Rope and Rewind Spring

Replacing a Broken Starter Rope

Step-by-step guide to replacing a broken starter rope.

Tensioning Rewind Spring

Rewind Spring Tensioning

Instructions on how to properly tension the rewind spring for the starter rope.

Replacing a Broken Rewind Spring

FR 350 Rewind Spring Replacement

Specific steps for replacing the rewind spring on the FR 350 model.

FR 450, FR 480 Rewind Spring Replacement

Specific steps for replacing the rewind spring on the FR 450 and FR 480 models.

Storing the Machine

Long-Term Storage Procedure

Guidelines for storing the brushcutter for periods of about 3 months or longer.

Sharpening Metal Cutting Tools

Sharpening Metal Cutting Tools

Instructions on how to sharpen metal cutting tools using files.

Avoiding Out-of-Balance Blades

Advice on checking and rebalancing blades after sharpening.

Maintenance Chart

Maintenance Schedule and Intervals

A comprehensive chart detailing maintenance intervals for various machine components.

Minimize Wear and Avoid Damage

Maintenance Work Importance

Emphasizes the importance of regular maintenance and recommends authorized dealers.

Parts Subject to Wear and Tear

Lists components of the power tool that are subject to normal wear and tear.

Parts and Controls

Part 1: Primary Controls

Identifies and labels the main operating controls of the brushcutter.

Parts and Controls

Part 2: Additional Components

Identifies and labels additional components like harness, hip belt, and muffler.

Specifications

Engine Specifications

Details engine displacement, bore, stroke, and power output.

Sound Power Level Data

Provides sound power level measurements for different configurations.

Vibration Measurement Values

Lists vibration measurement values for left and right handles.

Special Accessories

Cutting Tools Accessories

Lists various cutting tools available as special accessories.

Fuel Tank Capacity and Weight

Specifies fuel tank capacities and dry weight for different models.

Maintenance and Repairs

User Maintenance Scope

Guidelines on user-performed maintenance and when to contact a servicing dealer.

Cutting Tool Accessories

Lists specific accessories for cutting tools like nylon line and transport guards.

Metal Cutting Tool Sharpening Aids

Details sharpening files and balancers for metal cutting tools.

Metal Cutting Tool Mounting Hardware

Lists hardware required for mounting metal cutting tools.

Manufacturer's Certificate of Conformity

Product Conformity Declaration

Declares that the machine conforms to relevant directives and standards.

Quality Certification

ISO 9001 Quality System

Information about STIHL's ISO 9001 quality management system certification.

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