Clutch

Guide bar studs

 

Guide bar

 

adjuster

Hole

hole

Pin

Nuts

Adjuster pin

 

 

Clutch cover

Brake band

 

 

Brake connector

Unlock chain brake

6.Mount guide bar on studs and slide toward clutch to make saw chain installation easier. In- stall chain with cutters on top of guide bar facing forward.

7.Unlock the chain brake, and install the clutch cover over the guide bar studs. Ensure chain tension adjuster pin fits into the guide bar adjuster hole, brake band is positioned around clutch drum, and pin at rear of clutch cover fits hole on engine cover. Tighten clutch cover nuts finger tight.

8.Turn saw over, and check brake band for correct position on clutch drum. If brake band is not in place around drum, remove cover, make sure brake is unlocked, and reinstall. Tighten clutch cover nuts finger tight.

WARNING

Improper clutch cover assembly can result in serious injury, and will cause severe saw damage if unit is started. Never start or operate saw if brake band is not in place on clutch drum. Always check chain brake operation after replacing cover. Do not use saw if chain brake does not function properly.

Direction to tension the chain

Adjusting screw

Proper tension Improper tension

CS-450

ADJUSTING CHAIN TENSION

IMPORTANT

Always loosen clutch cover nuts before turning the chain tension adjuster, otherwise the clutch cover and tensioner will be damaged.

1.Loosen air cleaner cover knob and remove air cleaner cover.

2.Remove spark plug lead.

3.Loosen two clutch cover nuts, if necessary.

4.Hold the bar nose up, and turn the adjuster screw clockwise until chain contacts underside of the bar.

5.Tighten both nuts with the bar nose held up.

6.Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots.

7.When chain is properly tensioned, tighten clutch cover nuts securely - 20 to 23 N·m (175 to 200 in. lb.).

8.Keep chain properly tensioned at all times.

Note

All chains require frequent adjustments.

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Echo 2CS-450 instruction manual Adjusting Chain Tension

2CS-450, CS-450 specifications

The Echo CS-450 is a powerful and versatile chainsaw designed for both professional and home use. Renowned for its reliability and performance, the CS-450 is an ideal choice for tree care, land management, and firewood cutting. With its robust design, it stands out as a dependable tool for various cutting tasks.

One of the standout features of the Echo CS-450 is its engine. It is powered by a 45.0 cc, 2-stroke engine that delivers exceptional power while maintaining fuel efficiency. This engine translates to a power output of approximately 2.7 kW, allowing users to tackle demanding cutting jobs with ease. The chainsaw also incorporates a patented i-30 starting system, which reduces the effort required to start the engine. This feature significantly enhances user experience, especially during cold starts or extended use.

The CS-450 is equipped with a 20-inch guide bar, making it suitable for medium to large cutting tasks. The bar length provides a good balance between maneuverability and cutting capacity. Additionally, the chainsaw operates with a low-kickback chain, improving user safety while offering smooth and efficient cutting performance. This is especially important for both novice and experienced users, as it minimizes the risk of accidents.

In terms of design and ergonomics, the Echo CS-450 is built for comfort and ease of use. The chainsaw features an anti-vibration system that reduces operator fatigue during prolonged use. Its lightweight construction, weighing around 10.1 lbs, makes it easy to handle without sacrificing power. The front and rear hand grips are designed for enhanced comfort, allowing users to maintain good control over the saw.

The CS-450 is also equipped with a tool-less air filter cover and a side-access chain tensioner, making maintenance straightforward and efficient. The cleaner air filter helps extend engine life, while the quick chain tensioning system allows users to make adjustments effortlessly on the job.

For those who value durability, the Echo CS-450 features a heavy-duty build that includes a magnesium crankcase, resisting wear and tear under demanding conditions. The chainsaw is designed to operate in various environments, whether it be professional settings or home gardening tasks.

In summary, the Echo CS-450 combines power, efficiency, and comfort in a robust design. With its advanced features, including a high-performance engine, safety mechanisms, and user-friendly design elements, it remains a top choice for individuals seeking a reliable and effective chainsaw. Whether you are cutting firewood or maintaining trees, the CS-450 is an excellent partner to get the job done efficiently and safely.