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Stihl FS 240 - User Manual

Stihl FS 240
120 pages
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STIHL FS 240, 240 R
WARNING
Read Instruction Manual thoroughly
before use and follow all safety
precautions – improper use can
cause serious or fatal injury.
ADVERTENCIA
Antes de usar la máquina 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

Other manuals for Stihl FS 240

Questions and Answers

  • A
    Angel DavenportSep 7, 2025
    How to fix ball bearing of the clutch drum is damaged on Stihl Brush Cutter?
    • L
      Levi DelgadoSep 8, 2025
      Replace ball bearing.
  • V
    Victor GouldAug 25, 2025
    What to do if my Stihl Brush Cutter engine runs rough and misfires?
    • J
      James ScottAug 25, 2025
      If your Stihl Brush Cutter engine runs roughly, misfires, or experiences temporary power loss, the spark plug boot may be loose. Press the boot firmly onto the spark plug and fit a new spring if necessary.
  • W
    wilsonjeffreyAug 25, 2025
    Why won't the starter rope rewind on my Stihl Brush Cutter?
    • M
      Mr. Steven MorganAug 26, 2025
      If the starter rope does not rewind, heavy fouling or rust may be present on the rewind spring. Clean or replace the rewind spring.
  • B
    Bianca WalkerSep 18, 2025
    What to do if irregular spark on Stihl Brush Cutter?
    • E
      eric49Sep 18, 2025
      Check proper functioning of lever for stop function/contact spring or slide control/microswitch and ignition module. If there is damaged insulation or interruption in the ignition lead or a short circuit wire, check the ignition lead/ignition module, and replace the ignition module if necessary. Check operation of spark plug, clean spark plug and replace if necessary. For versions with M-Tronic, carry out diagnosis.
  • M
    Maria JohnsonSep 8, 2025
    How to fix pinion damaged or worn on Stihl Brush Cutter?
    • C
      Christine MunozSep 8, 2025
      Replace set of pinions on the drive side and non-drive side.
  • T
    tuckerstevenSep 12, 2025
    What to do if cutting attachment out of true on Stihl Brush Cutter?
    • S
      Stephanie AndersonSep 12, 2025
      Resharpen cutting attachment, replace if necessary.
  • E
    Erika MoralesSep 3, 2025
    What to do if screws of the clutch are loose on Stihl Brush Cutter?
    • M
      Madison RossSep 3, 2025
      Tighten the screws. Replace the clutch if necessary and check the threaded holes on the flywheel, replacing the flywheel if needed.
  • H
    Heather AndersonSep 3, 2025
    How to fix broken tension springs of the clutch shoes on Stihl Brush Cutter?
    • K
      kathrynhermanSep 4, 2025
      Replace tension springs.
  • A
    Andrew AlexanderSep 23, 2025
    What to do if metering diaphragm damaged or shrunk on Stihl Brush Cutter?
    • L
      Lucas CoffeySep 23, 2025
      Replace metering diaphragm.
  • N
    Nicole BensonAug 29, 2025
    Why does the drive tube assembly on my Stihl Brush Cutter get very warm?
    • T
      Tony BrownAug 29, 2025
      If the drive tube assembly becomes very warm, the drive shaft may not be sufficiently lubricated. Lubricate the drive shaft along its entire length, ensuring the entire length of the flexible liner is lubricated.

Summary

Guide to Using this Manual

Pictograms

Explains symbols attached to or embossed on the machine.

Symbols in Text

Describes how instructions and procedures are marked in the manual.

Safety Precautions and Working Techniques

Safe operation practices

Outlines key aspects for safe operation, operator, tool, and usage.

THE OPERATOR

Physical Condition

Requirements for operator's physical and mental health.

Proper Clothing

Recommendations for protective apparel for the operator.

Fuel

Fueling Instructions

Guidelines and warnings for safely refueling the power tool.

Before Starting

Operating Instructions

Air filter

General information about the air filter and its maintenance.

During Operation

Holding and Controlling the Power Tool

How to properly grip and control the machine during use.

Cutting Attachment Safety

Risk of Kickout (Blade Thrust)

Explains the hazard of kickout and how to avoid it.

USING THE CUTTING ATTACHMENT

Cutting Blade Usage

MAINTENANCE, REPAIR AND STORING

Approved Combinations

Approved Combinations Overview

Mounting the Bike Handle

Loop Handle Adjustment

Deflector and Attachment Mounting

Mounting Cutting Attachments

Fueling

Fitting the Harness

Balancing the Trimmer;Brushcutter

Starting; Stopping the Engine

Starting the Engine

Initial steps for starting the engine, including fuel pump and choke.

Engine Starting Procedures

Cranking

Procedures for cranking the engine, including placement and grip.

Engine Management

Adjusting the Carburetor

How to adjust the carburetor for optimal fuel-air mixture.

Winter Operation

Spark Plug

Maintaining the Mowing Head

Inspection and Maintenance by User

Adjusting the Throttle Cable

How to adjust the throttle cable for correct machine operation.

Inspections and Maintenance by Dealer

Maintenance and Care

Specifications

Maintenance and Repairs

Federal Emission Control Warranty Statement

Warranty Information

California Emissions Warranty Statement

Stihl FS 240 Specifications

General IconGeneral
TypeBrush cutter
CordlessYes
Head typeBlade
Handle typeU-type handle
Engine power2.3 hp
Product colorBlack, Metallic, Orange
Uncertainty K2 m/s²
Rotational speed8500 RPM
Number of strokes2
Sound power level111 dB
Fuel tank capacity0.75 L
Engine displacement37.7 cm³
Sound pressure level98 dB
Cutting diameter (max)420 mm
Power sourceGasoline
Weight and Dimensions IconWeight and Dimensions
Length1800 mm
Weight7000 g

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