OPERATION

BREAKING

The operator should note the sound of the blow when the breaker is running. With experience, the operator will be able to tell the difference between a good solid blow and a hollow sounding blow. A hollow blow means that solid blows are not occurring and the breaker should be repositioned.

Continuous tool penetration usually does not do much good. If the material does not break with 3 to 4 inches of tool penetration, it usually won’t break with full penetra- tion. The time used for additional penetration could be better used to strike blows in another place.

Do not break continuously in one place

Figure 7. Breaking

NOTICE

Continuous breaking in the same area for lengthy periods will create excessive temperatures at the tip of the tool bit resulting in loss of temper (hardness) of the bit and causing mushrooming of the tip of the bit, and may lead to failure of the bit.

Many materials do not respond well to continued ham- mering in one place. The breaker tool should be reposi- tioned on the work each time the tool penetrates but does not crack the material.

Scoring with the breaker

Figure 8. Scoring with Breaker

Use a “scoring” method of breaking when cracking the material becomes difficult. This technique involves strik- ing the rock or concrete at several places along a line where you want the crack to occur. Most materials break sooner when struck several places along a line than when struck repeatedly in one location. On each line, the breaker tool should be continually repositioned. Practice determines the best length of time to stay in one spot (15-20 seconds) and how far to move the breaker tool.

Breaker tool binding can cause erratic breaker opera- tion and premature wear on the tool shank. Breaker tool binding is caused by failure to direct the down force in the direction of the tool bit.

Do not pry with or bind the tool bit

Figure 9. Breaker Binding

12 ► MAXFORCE BREAKER User Manual

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Stanley Black & Decker MBX138 thru MBX608 user manual Breaking, Breaker Binding
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MBX138 thru MBX608 specifications

Stanley Black & Decker has long been synonymous with innovation and quality in the power tools and machinery sector. Their MBX series, specifically the MBX138 through MBX608, exemplifies this commitment, offering a diverse range of electric and pneumatic tools tailored to meet the demands of both professionals and DIY enthusiasts.

The MBX138 is a compact and versatile tool designed for those who require precision in smaller applications. It features a lightweight design, making it easy to maneuver while still delivering robust performance. With a powerful motor and adjustable speed settings, users can tackle a variety of tasks, from sanding to grinding, with ease.

As we advance through the series, the MBX248 maintains the core functionalities of its predecessor while introducing enhancements for greater efficiency. This model boasts improved ergonomics, including a molded grip that reduces user fatigue during prolonged use. The MBX248 is equipped with advanced features such as dust collection systems to keep workspaces clean and free from debris.

The MBX368 raises the bar further, integrating smart technology that allows users to connect via Bluetooth. This feature enables real-time monitoring of tool performance and battery life, ensuring optimal use and minimizing downtime. The MBX368 is ideal for professionals who rely on their tools for daily tasks and require a seamless integration of technology into their work processes.

The flagship of the series, the MBX608, combines power and versatility, making it suitable for heavy-duty applications. With an ultra-high torque motor and multiple attachments available, this tool is a workhorse in any industrial setting. It includes advanced safety features, such as overload protection and automatic shut-off, providing peace of mind to users who operate in demanding environments.

All models in the MBX series are designed with durability in mind. The tough outer casing and high-impact materials ensure that these tools can withstand the rigors of daily use. Furthermore, user-friendly interfaces and straightforward maintenance routines make them a practical choice for a broad range of users, from novice hobbyists to seasoned experts.

In summary, the MBX138 through MBX608 models from Stanley Black & Decker exemplify a comprehensive approach to tool design, combining performance, safety, and technological advancements. This series reflects the company's commitment to quality and innovation, ensuring that users can rely on these tools for both precision and power in their projects. Whether for home use or in a professional setting, the MBX series stands out as an excellent investment for anyone seeking reliability and efficiency.
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