Manuals / Jonsered / Lawn and Garden / Chainsaw

Jonsered Ultimate Guide to Repair and Maintenance for Chainsaw Models

Models: CS 2240

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Repair instructions

7.16 Tank unit

WARNING!

The fuel used in the chain saw has the following hazardous properties:

1.The fluid and its vapour are poisonous.

2.Can cause skin irritation.

3.Is highly inflammable.

Dismantling

1. Drain the fuel from the tank.

2. Dismantle the cylinder cover, bar and chain. See the Operator's Manual.

3. Unhook the throttle actuator rod (G) from the carburettor (see figure 45).

4. Dismantle the fuel hose (B) and the fuel pump return hose (D) (see figure 45).

5. Remove the screws. (A). Loosen the handle (see figure 46).

6. Dismantle the fuel tank.

NOTE!

Exercise care so that the fuel hose and throttle cable are not damaged.

Fig 45

7.17 Venting the fuel tank

The two-way valve (C) has the following properties (see figure 47):

• Controlled opening pressure in both directions, which prevents a positive pressure or a vacuum developing in the fuel tank and impairing engine performance. This also prevents fuel leakage.

• Opening pressure outward 100–450 mbar.

• Opening pressure inward (vacuum) max. 70 mbar. (2 positions)

Test

Opening pressure outward:

1. Open the filler cap and let the cap remain open during the entire test. Drain the fuel from the tank.

2. Connect the pump, ref. no. 531 03 06-23, to the tank valve. (C)

3. Switch the pump to vacuum mode.

4. After pumping the indicator should be between 10–45 kPa.

Opening pressure inward:

1. Open the filler cap and let the cap remain open during the entire test. Drain the fuel from the tank.

2. Connect the pump, ref. no. 531 03 06-23, to the tank valve. (C)

3. Switch the pump to pressure mode.

4. After pumping the indicator should stop at max.

7 kPa.

3xA

 

2xE

A

A

 

Fig 46

 

Fig

47

42 – English

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Jonsered CS 2240 manual Tank unit, Venting the fuel tank, Test Opening pressure outward, Opening pressure inward
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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.