Jonsered CS 2240 manual Troubleshooting methods, High rpm, Acceleration och retardation

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Troubleshooting

High rpm

Will not run at Adjust H screw

full throttle Blocked air filter Blocked fuel tank vent Blocked fuel filter Fuel line blocked

Loose or damaged fuel hose Impulse channel leaking Impulse channel blocked Loose cover on carburettor pump side

Faulty pump diaphragm Leaking air intake hose (rubber) Loose carburettor mounting bolts Needle valve set too low Metering system damaged Metering system incorrectly assembled

Leaking control diaphragm/cover plate

Needle valve assembly sticking

Blocked silencer

Low power

Adjust H screw

 

Blocked fuel tank vent

 

Blocked fuel filter

 

Impulse channel leaking

 

Impulse channel blocked

 

Loose cover on carburettor pump

 

side

 

Faulty pump diaphragm

 

Blocked air filter

 

Needle valve assembly sticking

 

Leak in metering system (air or

 

fuel)

 

Metering system incorrectly

 

assembled

 

Loose diaphragm rivet

 

Hole in diaphragm

 

Leaking control diaphragm/cover

 

plate

 

Will not “four- Blocked fuel tank vent

stroke”

Blocked fuel filter

 

Fuel line blocked

 

Loose or damaged fuel hose

 

Impulse channel leaking

 

Impulse channel blocked

 

Loose cover on carburettor pump

 

side

 

Faulty pump diaphragm

 

Leaking air intake hose (rubber)

 

Loose carburettor mounting bolts

 

Needle valve set too low

 

Leak in metering system (air or fuel)

 

Metering unit incorrectly assembled

 

Loose diaphragm rivet

 

Hole in diaphragm

 

Leaking control diaphragm/cover

 

plate

Acceleration och retardation

Does not

Adjust L screw

accelerate

Adjust H screw

 

Blocked air filter

 

Blocked fuel tank vent

 

Blocked fuel filter

 

Fuel line blocked

 

Loose or damaged fuel hose

 

Impulse channel blocked

 

Loose cover on carburettor pump

 

side

 

Faulty pump diaphragm

 

Leaking air intake hose (rubber)

 

Loose carburettor mounting bolts

 

Needle valve set too low

 

Metering system incorrectly

 

assembled

 

Needle valve assembly sticking

 

Faulty diffuser jets

 

Blocked silencer

Engine stalls

Adjust L screw

 

when throttle

Adjust H screw

released

Faulty pump diaphragm

 

Needle valve set too high

 

Needle valve assembly sticking

 

Faulty diffuser jets

Over rich

Adjust L screw

acceleration

Adjust H screw

 

Blocked air filter

 

Faulty pump diaphragm

 

Faulty diffuser jets

8.2 Troubleshooting methods

In addition to the faults described in the above table, trouble shooting can be carried out on specific components or sub-systems of the chainsaw. The various procedures are described in the relevant chapters, see the contents page, as follows:

Checking the operation of the chain brake

Measuring the resistance of the stop plate

Pressure testing the carburettor

Pressure testing the decompression valve

Pressure testing the cylinder

English – 55

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Contents Workshop manual 510 16Workshop manual Jonsered CS 2240 and CS 2240S Contents Index Trouble shooting Vibration damping systemIntroduction and safety instructions ContentsChanges Safety Target groupGeneral ToolsGeneral instructions Special instructionsSymbols on the saw Symbols in the Workshop ManualTechnical data Rpm Special tools 13a 13b 16b 16c 16a Service data Service data Safety equipment ContentsCleaning and inspection Dismantling the chain brakeChain brake reassembly Operating test Silencer removalSilencer refitting RefitChain catcher replacement Dismantling the start/stop controlStop switch resistance measurement Assembling the start/stop control2xA a Throttle lock, throttle trigger and return spring removalThrottle lock, throttle trigger and return spring refitting Repair instructions Starter assembly removal Changing a broken or worn starter cord Tensioning the recoil springStarter assembly refitting Ignition module testingReplacing a worn recoil spring Ignition module and flywheel Removal Ignition module and flywheel Refitting Centrifugal clutch removal Centrifugal clutch refitting Dismantling the oil pump and screenAssembling the oil pump and screen Assembling the intake systemAir intake system removal Carburettor DesignFunction Dismantling the carburettor English Cleaning and inspection Clean all units in clean petrol Assembly Pressure testing the carburettor Assemble on the saw Carburettor adjustment Conditions during adjustment Replacement of the H-needle or complete car BurettorReplacement of the L-needle Test Opening pressure outward Tank unitVenting the fuel tank Opening pressure inwardCleaning and inspection Clean and inspect all parts Assembly Vibration damping systemReplacing the air-purge Replacing the fuel filterReplacing the fuel hose/ return hose AssemblingPiston and cylinder removal If replacing the cylinderEnglish Carbon build-up B Faults and causes Score marks on the piston aPiston and cylinder refitting Piston ring breakageInlet manifold Assembling the intake systemCylinder pressure testing Crankshaft bearings replacement Crankshaft complete dismantlingCrankshaft complete reassembly Repairing damaged threadsReplacing the bar bolt Replacing the front bar guideReplacing the rear bar guide Troubleshooting Troubleshooting StartingIdling low rpm Troubleshooting methods High rpmAcceleration och retardation 2009W39

CS 2240 specifications

The Jonsered CS 2240 is a powerful and versatile chainsaw designed for homeowners, landscapers, and property maintenance professionals. It stands out in the market due to its unique combination of performance-oriented technology, ergonomic design, and ease of use.

One of the main features of the Jonsered CS 2240 is its robust engine. With a 40.9cc X-Torq® engine, this chainsaw is designed to provide efficient power and performance while minimizing fuel consumption and emissions. The X-Torq® engine technology not only enhances the chainsaw's acceleration and torque but also contributes to better fuel efficiency, making it an environmentally friendly option for users.

The CS 2240 is equipped with a 16-inch bar, which strikes a perfect balance for various cutting tasks, whether it's felling small trees, trimming branches, or performing general maintenance. This length also allows for greater maneuverability in tight spaces, making it an ideal choice for homeowners and professional users alike.

A notable aspect of the Jonsered CS 2240 is its innovative starting system. The Quick Release Air Filter ensures that the air filter can be easily accessed for maintenance, promoting optimal engine performance. Coupled with the Air Injection system, which filters out larger debris before it enters the engine, this chainsaw maintains a longer lifespan and reduces the frequency of required maintenance.

Safety is paramount in chainsaw design, and Jonsered does not compromise on that front. The CS 2240 features a chain brake, which halts the chain movement in the event of kickback. Additionally, the front handguard provides an extra layer of protection, ensuring that users can operate the saw with confidence.

The ergonomic design of the CS 2240 incorporates a comfortable handle that reduces vibrations, allowing for extended use without excessive fatigue. Weighing approximately 10.8 lbs, it strikes the right balance between power and portability.

In summary, the Jonsered CS 2240 is an excellent choice for those seeking a reliable, efficient, and user-friendly chainsaw. Its advanced engine technology, balanced bar length, safety features, and ergonomic design make it a standout in its class, ideal for tackling a variety of cutting tasks with ease and efficiency. Whether you are a casual user or a professional, the CS 2240 is well-equipped to meet diverse cutting needs while ensuring safety and comfort.