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Stihl FS 40 C-E - User Manual

Stihl FS 40 C-E
100 pages
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STIHL FS 40, 50
Warning!
Read and follow all safety
precautions in Instruction Manual –
improper use can cause serious or
fatal injury.
Advertencia!
Lea y siga todas las precauciones
de seguridad dadas en el manual
de instrucciones – el uso incorrecto
puede causar lesiones graves o
mortales.
Instruction Manual
Manual de instrucciones
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Stihl FS 40 C-E Specifications

General IconGeneral
Engine Displacement27.2 cc
Fuel Tank Capacity0.33 l
Shaft TypeStraight
Sound Pressure Level94 dB(A)
Vibration Levels Left/Right4.5/4.5 m/s²
Engine Type2-stroke
Power Output0.8 kW
Weight4.4 kg

Summary

Guide to Using this Manual

Pictograms

Explains symbols used in the manual.

Symbols in Text

Explains text symbols and signal words used in the manual.

Engineering Improvements

Information on STIHL's product improvement process.

Safety Precautions and Working Techniques

The Operators Role

Outlines operator responsibilities for safe use of the machine.

Physical and Mental Condition

Details physical and mental requirements for operating the machine.

General Safety and Protective Measures

Tiredness and Vibration Hazards

Warns about risks from fatigue and prolonged vibration exposure.

Pacemaker Interference Warning

Alerts users with pacemakers to potential electromagnetic interference.

Proper Clothing and Eye Protection

Details essential protective clothing and eye protection for safe operation.

Power Tool Operation and Safety

Noise Protection and Footing

Emphasizes hearing protection and importance of good footing.

Power Tool Handling and Modifications

Advises against modifying the tool and stresses proper handling.

Fuel and Refueling Safety

Safe Transport and Fuel Handling

Safety guidelines for transporting the machine and handling fuel.

Fueling Instructions and Cap Safety

Step-by-step refueling procedures and fuel cap security.

Pre-Operation Checks

Fuel Cap Security

Instructions for checking fuel cap tightness and proper closure.

Before Starting Procedures

Outlines critical checks before operating the machine.

Starting and Attachment Safety

Cutting Attachment and Spark Plug Boot Safety

Safety warnings regarding cutting attachment and spark plug boot.

Starting Procedure and Drop Start Warning

Step-by-step starting guide and warning against drop starting.

Adjustments and Operation Safety

Starter Grip and Adjustment Safety

Safety precautions for using the starter grip and making adjustments.

Important Adjustments and Idle Speed

Details crucial adjustments like idle speed for safe operation.

Operating Instructions and Hazard Awareness

Exhaust Fumes and Chemical Hazards

Warns about toxic exhaust fumes and chemical hazards during operation.

Operating Instructions and Area Inspection

Guidelines for operating the machine and inspecting the work area.

Cutting Attachment and Component Safety

Cutting Attachment Safety Precautions

Covers safe use, tightness, and condition of the cutting attachment.

Gearbox and Muffler Safety Warnings

Details safety for hot gearbox, muffler modification, and component condition.

Cutting Attachment Usage Guide

Cutting Attachment and Mowing Head Usage

Instructions for using cutting attachments and mowing heads.

Specific Mowing Head Types

Describes STIHL AutoCut and PolyCut mowing heads.

Maintenance, Repair, and Storing

FixCut Mowing Head and Wear Limits

Information on STIHL FixCut mowing head and wear indicators.

Spark Plug and Maintenance Warnings

Safety warnings related to spark plug and general maintenance.

Machine Care and Warnings

Muffler and Head Safety Warnings

Warnings about muffler condition and damaged cutting heads.

Cleaning Precautions

Warning against using a pressure washer for cleaning the machine.

Approved Component Combinations

Combination Guidelines

Table and text explaining correct combinations of parts for safe use.

Cutting Attachment Types

Lists available mowing heads and their compatibility.

Mounting Handles and Deflectors

Loop Handle Adjustment

Instructions for adjusting and mounting the loop handle.

Deflector Mounting Procedure

Step-by-step guide for mounting the deflector.

Mounting Cutting Attachments

Attachment Mounting Preparations

Initial steps and components required for mounting attachments.

Mowing Head Installation

Guides for installing various mowing heads onto the trimmer.

Installing Specific Mowing Heads

AutoCut C 5-2 Installation

Detailed steps for installing the STIHL AutoCut C 5-2 mowing head.

PolyCut 6-3 Installation

Detailed steps for installing the STIHL PolyCut 6-3 mowing head.

Drive Shaft Blocking and Head Removal

Blocking the Drive Shaft

Procedure for blocking the drive shaft during maintenance.

Mowing Head Removal Procedures

Instructions for removing different types of mowing heads.

Nylon Line Adjustment and Fuel Information

Adjusting Nylon Line

How to adjust the nylon line length during operation.

Replacing Line;Blades and Fuel

Procedures for replacing nylon line/blades and fuel requirements.

Fuel Mix and Fueling Procedures

Fuel Mix Guidelines

Details recommended fuel-oil mixture ratios and storage.

Fueling Preparations

Steps to prepare for fueling, including cleaning the cap area.

Fuel Cap Operation

Toolless Filler Cap Operation

Instructions for opening and closing the toolless fuel cap.

Refueling and Threaded Cap

Refueling process and operation of the threaded filler cap.

Fuel Cap Closure and Alignment

Checking Fuel Cap Closure

How to ensure the fuel cap is properly closed and aligned.

Threaded Filler Cap Operation

Instructions for opening and closing the threaded filler cap.

Starting and Stopping the Engine

Controls and Ignition System

Identification of controls and how the ignition system functions.

Engine Starting Procedures

Step-by-step guide for starting the engine in cold and warm conditions.

Engine Starting and Stopping Details

Starter Grip Operation

How to use the starter grip for different models.

Engine Start Completion and Stopping

Final steps after engine starts and how to stop the engine.

Starting Troubleshooting

Common starting issues and their solutions.

Operating Instructions and Air Filter Cleaning

Break-in Period and Operation

Guidelines for the engine break-in period and during normal operation.

Air Filter Cleaning Procedure

Steps for cleaning or replacing the air filter when power is lost.

Engine Management and Carburetor Adjustment

Engine Management Overview

How engine parameters control exhaust emissions.

Carburetor Standard and Fine Tuning

Initial and altitude-specific adjustments for the carburetor.

Idle Speed Adjustment

How to adjust idle speed to prevent cutting attachment rotation.

Carburetor and Spark Plug Maintenance

Carburetor Idling Adjustments

Troubleshooting carburetor idling issues like rotating attachment or poor acceleration.

Spark Plug Service

Procedures for removing, checking, and replacing the spark plug.

Engine Running Behavior and Spark Plug Installation

Troubleshooting Engine Running Behavior

How to diagnose unsatisfactory engine running behavior, possibly due to muffler.

Spark Plug Installation

Correct procedure for installing the spark plug and boot.

Starter, Storage, and Line Replacement

Rewind Starter Care

Tips to prolong the life of the starter rope.

Machine Storage Procedures

Guidelines for storing the machine for short and long periods.

Nylon Line Replacement Preparations

Steps to prepare for replacing nylon line in the STIHL AutoCut head.

Mowing Head Assembly and Line Winding

Mowing Head Assembly

Steps for assembling the mowing head after line replacement.

Winding Nylon Line onto Spool

Detailed instructions on how to wind the nylon line onto the spool.

Nylon Line Removal and Spool Winding

Removing Remaining Nylon Line

How to remove any remaining nylon line from the spool.

Spool Line Winding Procedure

Instructions for winding new nylon line onto the spool.

Dealer Inspections and Muffler Maintenance

Spark Arresting Screen Inspection

How to check the spark arresting screen for power loss.

Recommended Dealer Servicing

STIHL's recommendation for dealer servicing.

Maintenance and Care Schedule

Machine Component Maintenance Intervals

Table detailing maintenance tasks and their recommended intervals.

Cutting Attachment and Safety Label Care

Cutting Attachment Maintenance

Maintenance schedule for the cutting attachment.

Safety Label Replacement

Procedure for replacing safety labels on the machine.

Main Parts Identification

Component Diagram and Labels

Illustrated identification of all major parts of the machine.

Definitions and Specifications

Component Definitions

Explains the function of key machine components.

EPA;CEPA and CARB Emission Compliance

Information on emission compliance periods and standards.

Engine Specifications

Details about the single cylinder two-stroke engine.

Technical Specifications

FS 40;FS 40 C Specifications

Technical data for FS 40 and FS 40 C models.

FS 50;FS 50 C Specifications

Technical data for FS 50 and FS 50 C models.

Weight, Length, Ignition, Fuel System

Specifications on weight, length, ignition, and fuel system.

Special Accessories Information

Information on available special accessories.

Maintenance, Repairs, and Warranty

Maintenance and Repair Guidelines

Procedures for maintenance and repair, emphasizing authorized service.

Federal Emission Control Warranty

Details STIHL's federal warranty for emission control systems.

Warranty Coverage and Owner Responsibilities

Explains manufacturer's warranty and owner's maintenance responsibilities.

Warranty Details and Procedures

Warranty Period and Defect Claims

Defines warranty duration and procedures for claiming defects.

Diagnosis and Warranty Work

Process for diagnosis and warranty repairs at authorized dealers.

Maintenance Requirements and Limitations

Requirements for maintenance and limitations of the warranty.

California Emissions Warranty

California Emissions Warranty Statement

Specific warranty statement for California emissions control systems.

Manufacturer and Owner Warranty Duties

Responsibilities of manufacturer and owner regarding California warranty.

Trademarks

STIHL Registered Trademarks

Lists STIHL's registered trademarks.

Common Law Trademarks

Lists STIHL's common law trademarks.

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