Jonsered CS 2240 manual Dismantling the carburettor

Page 34

Repair instructions

Dismantling the carburettor

1. Dismantle the cylinder cover and the air filter.

2. Disassemble the handle holder (see figure 29).

3. Push the throttle actuator rod out of the han- dle part. Unhook it from the carburettor (see figure 30).

4.Remove the return hose (B) and suction hose

(C). Loosen the fuel pump (D). Let the fuel hose (G) remain in place (see figure 31).

NOTE!

Take care when lifting out the carburettor so that the fuel hose does not become loose.

5.Loosen the screws (E) and unhook the rubber mountings (F) (see figure 32).

Fig 29

Fig	30
Fig	31

Fig 32

English – 35

Image 34

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 springIgnition module testing Starter assembly refittingReplacing 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 intake system Assembling the oil pump and screenAir 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 Replacement of the H-needle or complete car Burettor Carburettor adjustment Conditions during adjustmentReplacement 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 front bar guide Replacing the bar boltReplacing the rear bar guide Troubleshooting Starting TroubleshootingIdling low rpm High rpm Troubleshooting methodsAcceleration 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.