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Jonsered CS 2240 - User Manual

Jonsered CS 2240
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English
115 11 98-95 Re
v
.1 2009-01-20
CS 2240
CS 2240S
Operator’
s manual
(EPA III, CARB III)
Please read the oper
ator’s manual carefully and make sure you understand the instructions before using the machine.z

Other manuals for Jonsered CS 2240

Questions and Answers

  • J
    Jennifer Richardson DDSAug 19, 2025
    How to fix difficulty starting a Jonsered CS 2240?
    • C
      Catherine UnderwoodAug 20, 2025
      If your Jonsered Chainsaw is difficult to start, several factors could be the cause. Try these solutions: adjust the L screw, check if the air filter is blocked, examine the choke for proper function, and inspect for a worn choke pivot or valve. Also, verify that the fuel filter and fuel line aren't blocked, and check for a seized piston ring or a blocked impulse channel.
  • Z
    zyoungAug 21, 2025
    What to do if Jonsered Chainsaw does not accelerate?
    • R
      randy21Aug 22, 2025
      If your Jonsered Chainsaw does not accelerate, consider the following solutions: Adjust the L and H screws. Check for blockages in the air filter, fuel tank vent, and fuel filter. Inspect the fuel line for blockages and the fuel hose for damage. Examine the impulse channel for blockages. Ensure the carburettor pump side cover is secure and the pump diaphragm is in good condition. Look for leaks in the air intake hose and ensure the carburettor mounting bolts are tight. Check if the needle valve is set too low, if the metering system is assembled incorrectly, or if the needle valve assembly is sticking. Finally, inspect the diffuser jets and silencer for blockages.
  • C
    Christine OconnorAug 25, 2025
    What to do if engine stalls when throttle released on Jonsered CS 2240 Chainsaw?
    • K
      Kevin Edwards MDAug 25, 2025
      If the engine of your Jonsered Chainsaw stalls when the throttle is released, consider these solutions: Adjust the L and H screws. Inspect the pump diaphragm for faults. Check if the needle valve is set too high or if the needle valve assembly is sticking. Also, examine the diffuser jets for any issues.
  • A
    Adam HillAug 26, 2025
    Why is my Jonsered CS 2240 Chainsaw carburettor leaking fuel?
    • R
      Rachel JohnsonAug 26, 2025
      If your Jonsered Chainsaw carburettor is leaking fuel, consider the following: Check for loose or faulty fuel pipes, a hole in the diaphragm, a worn needle valve, a sticking needle valve assembly, a needle valve set too high, leaks in the metering system, or a loose cover on the carburettor pump side.
  • Q
    qvargasAug 27, 2025
    How to fix Jonsered CS 2240 Chainsaw that will not idle?
    • E
      Elizabeth FrederickAug 27, 2025
      If your Jonsered Chainsaw will not idle, consider the following solutions: Adjust the L screw. Check for leaks in the air intake hose, loose carburettor mounting bolts, and loose or faulty fuel hose. Inspect for blocked fuel filter, fuel line, and fuel tank vent. Check for a stiff throttle valve pivot, sticking throttle pushrod, defective throttle return spring, and a bent throttle stop. Finally, examine the diffuser jet for faults.
  • D
    Darren BakerAug 30, 2025
    What causes over rich acceleration in Jonsered CS 2240 Chainsaw?
    • Z
      zacharyspencerAug 30, 2025
      If your Jonsered Chainsaw exhibits over rich acceleration, consider the following: Adjust the L and H screws. Check for a blocked air filter, a faulty pump diaphragm, or faulty diffuser jets.
  • J
    Joseph AndersonAug 31, 2025
    Why does Jonsered CS 2240 L screw require constant adjustment?
    • M
      miguel66Aug 31, 2025
      If your Jonsered Chainsaw L screw requires constant adjustment, consider the following: Check for a blocked fuel line, a needle valve set too high, a sticking needle valve assembly, leaks in the metering system, a leaking control diaphragm/cover plate, faulty diffuser jets, or a crankcase leak.
  • A
    Amy NelsonSep 3, 2025
    Why Jonsered CS 2240 Chainsaw will not run at full throttle?
    • Y
      ywoodSep 3, 2025
      If your Jonsered Chainsaw will not run at full throttle, try the following: Adjust the H screw. Check for blockages in the air filter, fuel tank vent, and fuel filter. Inspect the fuel line and hose for blockages or damage. Examine the impulse channel for leaks or blockages. Ensure the carburettor pump side cover is secure and the pump diaphragm is in good condition. Look for air leaks in the intake hose and ensure the carburettor mounting bolts are tight. Check if the needle valve is set too low, if the metering system is damaged or incorrectly assembled, or if the control diaphragm/cover plate is leaking, or if the needle valve assembly is sticking. Finally, inspect the silencer for blockages.
  • S
    Shannon WatkinsSep 4, 2025
    Why Jonsered CS 2240 has low power?
    • M
      Mary ThompsonSep 4, 2025
      If your Jonsered Chainsaw has low power, consider the following: Adjust the H screw. Check for blockages in the fuel tank vent and fuel filter. Inspect the impulse channel for leaks or blockages. Ensure the cover on the carburettor pump side is secure and the pump diaphragm is in good condition. Check the air filter for blockages. Look for a sticking needle valve assembly, leaks in the metering system, or an incorrectly assembled metering system. Inspect for loose diaphragm rivets, holes in the diaphragm, or a leaking control diaphragm/cover plate.
  • C
    Carrie ColeSep 7, 2025
    Why is Jonsered CS 2240 idling uneven?
    • J
      jonathanwrightSep 7, 2025
      If your Jonsered Chainsaw is idling uneven, consider these solutions: Check for a blocked fuel filter and fuel line. Inspect the air intake hose for leaks and ensure the carburettor mounting bolts are tight. Look for a worn throttle valve pivot, loose throttle valve screw, or a worn throttle valve. Check for a sticking needle valve assembly, leaks in the metering system, or a worn metering system centre knob. Inspect the diaphragm for holes and the control diaphragm/cover plate for leaks. Finally, check for crankcase leaks.

Summary

KEY TO SYMBOLS

Machine Symbols

Explains symbols shown on the chainsaw itself for safety and identification.

Manual Symbols

Explains symbols used within the manual for instructions and warnings.

INTRODUCTION

Welcome and Manual Purpose

Welcomes the user and highlights the manual's importance for machine longevity.

WHAT IS WHAT?

Chain Saw Part Identification

Identifies and labels the various parts of the chainsaw with a diagram.

GENERAL SAFETY PRECAUTIONS

Before Using a New Chain Saw

Essential checks and preparations before operating the chainsaw for the first time.

Operator Sense & Personal Protective Equipment

Emphasizes operator judgment and the importance of wearing personal protective equipment.

Chain Brake Operation and Safety

Details the activation, release, and function of the chainsaw's chain brake.

Throttle Lockout & Other Safety Features

Explains throttle lockout, chain catcher, and right hand guard safety features.

Vibration Damping, Muffler & Cutting Equipment Care

Covers vibration reduction, muffler safety, and cutting equipment maintenance.

Kickback Reduction & Equipment Specifications

Discusses equipment designed to reduce kickback, bar, and chain specifications.

Chain Sharpening & Depth Gauge Basics

General information on sharpening cutting teeth and depth gauge settings.

Sharpening, Depth Gauge & Chain Tensioning

Detailed steps for sharpening, adjusting depth gauge, and tensioning the chain.

Chain Tensioning Procedures (CS 2240;2240 S)

Specific instructions for adjusting chain tension on both CS 2240 and CS 2240S models.

Cutting Equipment Lubrication and Checks

Guidance on lubricating cutting components and checking oil flow.

Sprocket, Bearing Lubrication & Wear Inspection

Maintenance for drive sprockets, needle bearings, and general wear inspection.

ASSEMBLY

Fitting Bar and Chain (CS 2240)

Step-by-step guide to attach the bar and chain to the CS 2240 model.

Fitting Bar and Chain (CS 2240 S)

Step-by-step guide to attach the bar and chain to the CS 2240S model.

FUEL HANDLING

Fuel Mixing and Chain Oil

Information on the correct gasoline type, mixing ratio, and chain oil.

Fueling and Storage Precautions

Safe procedures for fueling, transporting, and storing fuel and the chainsaw.

STARTING AND STOPPING

Starting Procedures (Cold & Warm Engines)

Step-by-step guide for starting the chainsaw, covering cold and warm engines.

Safe Engine Stopping Procedures

Instructions on how to safely shut off the chainsaw engine and precautions.

WORKING TECHNIQUES

Pre-Use Checks and General Operation

Essential pre-operation checks and fundamental safety rules for chainsaw operation.

Kickback Control and Proper Grip

Techniques to reduce kickback and maintain control through proper grip.

Basic Cutting Technique Principles

Fundamental principles for safe and effective cutting operations.

Limbing, Cutting & Tree Felling Basics

Techniques for limbing, cutting logs, and introductory tree felling safety.

Felling Direction & Retreat Path Preparation

Factors influencing felling direction and preparing a safe retreat path.

Felling Cut & Hinge Control

How to make the felling cut and use the hinge to control tree fall.

Handling Tensioned Wood & Avoiding Kickback

Techniques for cutting tensioned wood and detailed guidance on preventing kickback.

Limbing Safety and Techniques

Specific warnings and techniques for safe limbing operations.

MAINTENANCE

General Maintenance & Carburetor Adjustment

Overview of user maintenance and carburetor adjustment procedures.

Safety Equipment Checks

Instructions for inspecting and maintaining safety features like chain brake and hand guard.

Brake & Throttle Lockout System Checks

Verifying the proper function of the inertia brake release, trigger, and throttle lockout.

Other Safety Component Maintenance Checks

Checks for chain catcher, right hand guard, vibration damping, stop switch, and muffler.

Starter Cord & Recoil Spring Maintenance

Procedures for replacing starter cords and tensioning recoil springs.

Starter Springs & Air Filter Maintenance

Instructions for replacing starter springs and cleaning/replacing the air filter.

Spark Plug, Sprocket Lubrication & Cooling System

Maintenance for spark plug, bar tip sprocket lubrication, and cooling system cleaning.

Centrifugal Cleaning & Winter Use Precautions

Explanation of air cleaning system and precautions for winter operation.

Maintenance Schedule

Daily Maintenance Tasks

Routine checks and cleaning performed each day before use.

Weekly Maintenance Tasks

Tasks to be performed weekly for ongoing upkeep.

Monthly Maintenance Tasks

Periodic checks and servicing performed monthly.

TECHNICAL DATA

Engine & Fuel System Specifications

Technical details regarding the engine, fuel tank capacity, and carburetor type.

Chain and Bar Specifications

Details on bar length, chain pitch, drive links, and chain speed.

Recommended Bar & Chain Combinations

Lists approved combinations for optimal safety and performance.

Saw Chain Filing & File Gauges

Information on tools and techniques for sharpening chains.

Emissions Control Warranty

Warranty Rights, Obligations & Coverage

Outlines owner rights, manufacturer obligations, and the scope of the emissions warranty.

Covered and Non-Covered Parts

Lists parts covered and excluded under the emissions warranty.

American Standard Safety Precautions

Chain Saw User Safety Guidelines

General safety guidelines for operating a chainsaw according to standards.

Kickback & General Operation Safety

Specific measures to prevent kickback and additional safety rules for operation.

Jonsered CS 2240 Specifications

General IconGeneral
Engine Displacement40.9 cm³
Power Output1.8 kW
Weight (excluding cutting equipment)4.4 kg
Chain Pitch3/8"
Fuel Tank Volume0.37 liters
Oil Tank Volume0.25 liters

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