Pushback:

Pushback occurs when the chain on the top of the bar is suddenly stopped when it is pinched, caught or encounters a foreign object in the wood. The reaction of the chain drives the saw straight back toward the operator causing loss of saw control. Pushback fre- quently occurs when the top of the bar is used for cutting (fig. 14).

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To avoid pushback

1.Be alert to forces or situations that may cause material to pinch the top of the chain.

2.Do not cut more than one log at a time.

3.Do not twist the saw when withdrawing the bar from a plunge cut or under buck cut (figures 25 to 27 and 33, pages 13 and 14), because the chain can pinch.

Pull-in:

Pull-in occurs when the chain on the bottom of the bar is suddenly stopped. The chain on the bottom of the bar stops when it is pinched, caught or encounters a foreign object in the wood (see fig. 15). The reaction of the chain pulls the saw forward, causing the operator to lose control.

Pull-in frequently occurs when the spike bar of the saw is not held securely against the tree or limb and when the chain is not rotating at full speed before it contacts the wood.

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WARNING!

Use extreme caution when cutting small size brush and saplings which may easily catch the chain and pull you off balance.

To avoid pull-in

1.Always start a cut with the chain rotating at full speed and the spike bar in contact with the wood.

2.Pull-in may also be prevented by using plastic wedges to open the kerf or cut.

Cutting techniques

Felling

Felling is cutting down a tree.

Before felling a tree, consider carefully all conditions which may affect the direction of fall, including:

The intended direction of the fall.

The neutral lean of the tree.

Any unusually heavy limb structure.

Surrounding trees and obstacles.

The wind direction and speed.

WARNING!

Always observe the general condition of the tree. Look for decay and rot in the trunk. If it is rotted inside, it could snap and fall toward the operator while being cut.

Also look for broken or dead branches which could vibrate loose and fall on the operator. When felling on a slope, the operator should stand on the up-hill side.

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When felling in the vicinity of roads, railways and power lines, etc., take extra precautions (see fig. 16). Inform the police, utility company or railway authority before beginning to cut.

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Makita DCS 330 TH instruction manual Cutting techniques, Pushback, To avoid pushback, To avoid pull-in, Felling

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.