Manuals / Jonsered / Lawn and Garden / Chainsaw

Jonsered CS 2138 Chain Brake, Important Points to Remember, Starting a Warm Engine

Models: CS 2138

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IMPORTANT

Experience indicates that alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, empty the fuel system before storage for 30 days or longer. Drain the gas tank, start the en- gine and let it run until the fuel lines and carbu- retor are empty. Use fresh fuel next season. Never use engine or carburetor cleaner prod- ucts in the fuel tank or permanent damage may occur.

CHAIN BRAKE

Ensure chain brake is disengaged by pulling the front hand guard back toward the front han- dle as far as possible. The chain brake must be disengaged before cutting with the saw.

WARNING: The chain must not move when the engine runs at idle speed. If the chain moves at idle speed refer to CAR- BURETOR ADJUSTMENT within this manual. Avoid contact with the muffler. A hot muffler can cause serious burns.

To stop the engine, move the ON/STOP

switch to the STOP position.

To start the engine, hold the saw firmly on the ground as illustrated below. Make sure the chain is free to turn without contacting any object.

Use only 15″ --- 18″ of rope per pull.

Hold saw firmly while pulling starter rope.

IMPORTANT POINTS TO REMEMBER

When pulling the starter rope, do not use the full extent of the rope as this can cause the rope to break. Do not let starter rope snap back. Hold the handle and let the rope rewind slowly.

For cold weather starting, start the unit at full choke; allow the engine to warm up before squeezing the throttle trigger.

NOTE: Do not cut material with the choke/fast idle lever at the FULL CHOKE position.

STARTING A COLD ENGINE (or a warm engine after running out of fuel)

NOTE: In the following steps, when the cho- ke/fast idle lever is pulled out to the full ex- tent, the correct throttle setting for starting is set automatically.

ON/STOP SWITCH

(SIDE VIEW)

ON

STOP

1.Move ON/STOP switch to the ON posi- tion.

2.Pull out choke/fast idle to the full extent (to the FULL CHOKE position).

3.Slowly press primer bulb 6 times.

4.Pull the starter rope sharply 5 times with your right hand. Then, proceed to the next step.

NOTE: If the engine sounds as if it is trying to start before the 5th pull, stop pulling and immediately proceed to the next step.

5.Push the choke/fast idle lever in to the HALF CHOKE position.

CHOKE/FAST IDLE LEVER

(SIDE VIEW)

Choke/ fast idle lever OFF HALF FULL

6.Pull the starter rope sharply with your right hand until the engine starts.

7.Allow the engine to run for approximately 30 seconds. Then, squeeze and release throttle trigger to allow engine to return to idle speed.

STARTING A WARM ENGINE

1.Move ON/STOP switch to the ON posi- tion.

2.Pull the choke/fast idle lever out to the HALF CHOKE position.

3.Slowly press the primer bulb 6 times.

4.Pull the starter rope sharply with your right hand until the engine starts.

5.Squeeze and release throttle trigger to allow engine to return to idle speed.

DIFFICULT STARTING (or starting a flooded engine)

The engine may be flooded with too much fuel if it has not started after 10 pulls. Flooded engines can be cleared of excess fuel by pushing the choke/fast idle lever in completely (to the OFF CHOKE position) and then following the warm engine starting procedure listed above. Ensure the ON/ STOP switch is in the ON position. Starting could require pulling the starter rope handle many times depending on how badly the unit is flooded. If engine fails to start, re- fer to the TROUBLESHOOTING TABLE.

CHAIN BRAKE

WARNING: If the brake band is worn too thin it may break when the chain brake is triggered. With a broken brake band, the chain brake will not stop the chain. The chain brake should be replaced by an authorized service dealer if any part is worn to less than 0,02″ (0,5 mm) thick. Repairs on a chain brake should be made by an authorized ser- vice dealer. Take your unit to the place of pur- chase if purchased from a servicing dealer, or to the nearest authorized master service dealer.

SThis saw is equipped with a chain brake. The brake is designed to stop the chain if kickback occurs.

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Jonsered CS 2138 Chain Brake, Important Points to Remember, Starting a Warm Engine, To stop the engine, move the ON/STOP
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CS 2138 specifications

The Jonsered CS 2138 is a powerful and versatile chainsaw designed for both professional loggers and avid DIY enthusiasts. Renowned for its reliability and performance, the CS 2138 is particularly suited for medium to heavy-duty tasks, making it an excellent choice for cutting firewood, felling trees, and other demanding applications.

One of the standout features of the Jonsered CS 2138 is its robust engine. It is equipped with a high-performance 38cc engine that delivers an impressive power-to-weight ratio, allowing for efficient cutting while minimizing user fatigue. The engine utilizes advanced technology that ensures low emissions and complies with environmental regulations, making it a responsible choice for eco-conscious users.

The chainsaw features an ergonomic design, which includes a comfortable handle and an anti-vibration system. This system reduces the vibrations transmitted to the user’s hands, enhancing comfort during prolonged use and reducing the risk of white finger syndrome, a common issue for chainsaw operators. The lightweight construction of the CS 2138 further contributes to its ease of handling, allowing users to maneuver the saw with precision.

Another significant technological advancement in the Jonsered CS 2138 is its Easy Start system. This feature simplifies the starting process, requiring less effort from the user to get the chainsaw up and running. The chainsaw also comes with a side-mounted chain tensioner that makes adjusting the chain quick and convenient, ensuring optimal performance during cutting tasks.

Safety is a top priority for Jonsered, and the CS 2138 incorporates several safety features. It is equipped with a chain brake that engages automatically in the event of kickback, significantly reducing the risk of accidents. Additionally, the saw has a low-profile chain and bar design that enhances overall safety without compromising cutting efficiency.

In terms of maintenance, the CS 2138 offers a tool-less air filter cover, making it easy for users to access the air filter for cleaning or replacing. This feature extends the life of the chainsaw and ensures consistent performance by maintaining optimal airflow.

In summary, the Jonsered CS 2138 is a powerful, efficient, and user-friendly chainsaw that combines advanced technology with safety and comfort. Its features make it an excellent choice for anyone looking to tackle heavy cutting tasks without sacrificing performance or usability. Whether you're a professional logger or a regular homeowner, the CS 2138 is designed to meet your chainsawing needs with ease and reliability.