9

In order to keep control of your saw, always maintain a firm foothold. Never work on a ladder, in a tree or on any other insecure support. Never use the saw above shoulder height (fig. 9).

10

Position the chain saw in such a way that your body is clear of the cutting attachment whenever the engine is running (fig. 10).

Don’t put pressure on the saw when reaching the end of a cut. The pressure may cause the bar and rotating chain to pop out of the cut or kerf, go out of control and strike the operator or some other object. If the rotating chain strikes some other object a reactive force (see pages 10 to 12 ) may cause the chain to strike the operator.

Reactive forces during the cut, including kickback

WARNING!

Reactive forces, that may occur during any cut are kickback, pushback and pull-in. Reactive forces can be dangerous! In any chain saw, the powerful force used to cut wood can be reversed (and work against the operator).

If the rotating chain is suddenly stopped by contact with any solid object like a log or branch or is pinched, the reactive forces instantly occur. These reactive forces may result in loss of control which may, in turn, cause serious or fatal injury. An understanding of the causes of these reactive forces may help you avoid loss of control.

The most common reactive forces are

-kickback,

-pushback,

-pull-in.

11

Kickback:

Kickback occurs when the upper quadrant of the bar nose contacts a solid object in the wood or is pinched (fig. 11). The reaction of the cutting force of the chain causes a rotational force of the chain saw in the direc tion opposite to the chain movement, mainly in the plane of the bar. This may fling the bar in an uncontrolled arc towards the operator.

12

This reaction can occur in a fraction of a second and under some circumstances, cause the guide bar and chain to strike the operator with enough force to cause severe or fatal injury. It may also occur during limbing. It also occurs when the nose of the guide bar is pinched unexpectedly, unintentionally contacts solid material in the wood (fig.12) or is incorrectly used to begin a plunge or boring cut.

The greater the force of the kickback reaction, the more difficult it becomes for the operator to control the saw.

9

Page 8 Page 10
Page 9
Image 9
Makita DCS 330 TH instruction manual Kickback, Reactive forces during the cut, including kickback
Page 8 Page 10

DCS 330 TH specifications

The Makita DCS 330 TH is a powerful and versatile chainsaw designed for professional users who demand high performance and reliability in their tools. This model is particularly favored for its exceptional cutting capabilities, making it an ideal choice for both forestry applications and general landscaping tasks.

One of the standout features of the Makita DCS 330 TH is its robust 32.2 cc 2-stroke engine, which delivers impressive power for cutting through various types of wood. With an engine speed of up to 12,000 RPM, this chainsaw can tackle thick branches and logs with ease, allowing the user to complete their tasks efficiently. The combination of power and lightweight design ensures that users can handle the saw comfortably for extended periods without excessive fatigue.

The chainsaw is equipped with a 12-inch guide bar, which enables precise cutting while maintaining a manageable size for various applications. This length strikes an optimal balance between maneuverability and cutting depth, making the DCS 330 TH an excellent choice for both pruning and felling small to medium-sized trees.

The Makita DCS 330 TH also incorporates advanced technologies that enhance its performance and user experience. One of these technologies is the automatic oil pump, which ensures that the chain is adequately lubricated during operation. This feature not only prolongs the life of the chain and bar but also enhances cutting efficiency and safety.

User comfort is further prioritized through the inclusion of an anti-vibration system that minimizes the impact of vibration during operation. This system significantly reduces user fatigue and allows for more precise control, making it easier to perform detailed cutting tasks.

Safety features are also a prominent aspect of the Makita DCS 330 TH. The chainsaw is designed with a chain brake system that quickly halts the chain in case of kickback, providing an additional layer of protection for the operator. Additionally, the tool's throttle lock ensures that the saw remains stable during operation, preventing accidental starts.

In summary, the Makita DCS 330 TH is a highly capable chainsaw that combines power, comfort, and safety features into one reliable package. Its lightweight design, advanced technologies, and user-friendly characteristics make it an excellent choice for anyone looking to invest in a quality chainsaw for demanding applications.
Top Page Image Contents