Jonsered CS 2240 manual Chain brake reassembly

Page 17

Safety equipment

6.2 Chain brake – reassembly

1

Bolt the elbow joint to the brake band (see figure 5) and tighten to a torque of 1–1.5 Nm.

Locate the elbow joint and connected brake band in their recesses in the clutch cover. Lubricate the recess for the spring with grease (see figure 6).

Secure the circlip (A) (see figure 6).

Fig 6

2

Grip the clutch cover in a vice. Compress the spring with special tool 502 50 67-01 and push it down with your thumb (see figure 7).

WARNING!

Make sure the spring does not fly out and cause injury. Wear eye protection.

Fig 7

3

Fit the cover over the chain brake spring, tighten- ing the screws to a torque of 1–1.5 Nm (see figure 8).

Fig 8

4

Tension the brake spring by using the kickback guard from the saw as a tool. Engage it with the brake mechanism and turn clockwise to release the brake (see figure 9).

5

Turn the chain tensioner anticlockwise as far as it will go.

Refit:

• guide bar

• chain

• clutch cover

NOTE!

After completing the repair the chain brake must be tested as described below.

Fig 9

18 – English

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Contents 510 16 Workshop manualWorkshop manual Jonsered CS 2240 and CS 2240S Contents Index Vibration damping system Trouble shootingContents Introduction and safety instructionsGeneral Safety Target groupChanges ToolsSpecial instructions General instructionsSymbols in the Workshop Manual Symbols on the sawTechnical data Rpm Special tools 13a 13b 16b 16c 16a Service data Service data Contents Safety equipmentDismantling the chain brake Cleaning and inspectionChain brake reassembly Silencer refitting Silencer removalOperating test RefitDismantling the start/stop control Chain catcher replacementAssembling the start/stop control Stop switch resistance measurementThrottle lock, throttle trigger and return spring removal 2xA aThrottle lock, throttle trigger and return spring refitting Repair instructions Starter assembly removal Tensioning the recoil spring Changing a broken or worn starter cordReplacing a worn recoil spring Starter assembly refittingIgnition module testing Ignition module and flywheel Removal Ignition module and flywheel Refitting Centrifugal clutch removal Dismantling the oil pump and screen Centrifugal clutch refittingAir intake system removal Assembling the oil pump and screenAssembling the intake system Design CarburettorFunction 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 L-needle Carburettor adjustment Conditions during adjustmentReplacement of the H-needle or complete car Burettor Venting the fuel tank Tank unitTest Opening pressure outward Opening pressure inwardVibration damping system Cleaning and inspection Clean and inspect all parts AssemblyReplacing the fuel hose/ return hose Replacing the fuel filterReplacing the air-purge AssemblingIf replacing the cylinder Piston and cylinder removalEnglish Piston and cylinder refitting Faults and causes Score marks on the piston aCarbon build-up B Piston ring breakageAssembling the intake system Inlet manifoldCylinder pressure testing Crankshaft complete dismantling Crankshaft bearings replacementRepairing damaged threads Crankshaft complete reassemblyReplacing the rear bar guide Replacing the bar boltReplacing the front bar guide Troubleshooting Idling low rpm TroubleshootingStarting Acceleration och retardation Troubleshooting methodsHigh rpm 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.
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