OPERATION

PREPARATION FOR USE

Read the section in this manual titled PREPARATION FOR USE before operating a breaker. Failure to follow the preparation instructions can result in severe damage to the breaker and excavator and void the warranties of both.

POSITIONING THE EXCAVATOR

Figure 4. Position the Excavator

With the breaker tool in place on the material to be worked, position the excavator so the dipper is at ap- proximately 45° and the breaker is almost vertical. The tracks of the excavator should be in line with booms and the breaker.

POSITIONING THE BREAKER TOOL ON THE WORK MATERIAL

Position the tool bit near the edge of the work material, not in the center or far from the edge. Position the tool 6-18 inches (depending on the material) from the edge. Breaking off smaller pieces of rock or concrete usually accomplishes more than trying to break larger pieces.

Break near the edge

Figure 5. Position the Breaker

On flat material or rock, the breaker should be vertical or “curled” back slightly to direct the impact force down- ward and toward the backhoe. This directs the force back toward the edge of the work material. If the tool is positioned in the center of the work, or too far from

10 ► MBX15 User Manual

the edge, the energy will be absorbed into the material without cracking it. Do not run the breaker longer than 15-20 seconds. If breakout does not occur within this time, move the breaker to another position.

On flat material such as concrete runways, starting to break in the middle of the material may cause vibrations to be transmitted throughout the breaker and excavator because the material has no place to break to. Always try to start at a point which will permit the material to break out.

MAINTAIN DOWN PRESSURE

Maintaining hard contact with the surface of the material to be broken in addition to maintaining adequate "down force" is very important. Always keep "down pressure" or "down force" on the point of the breaker by lifting the wheels, tracks, or stabilizers slightly above the ground. This method takes the "slack" out of the bracket and boom pivots, and reduces the impact on the pivots in the boom.

Apply down pressure

Figure 6. Maintain Down Pressure

The operator needs to be constantly aware of the amount of down pressure being applied and be able to adjust it if necessary. Not enough down pressure results in low production and accelerates wear and tear on the equip- ment. Too much down pressure may cause the breaker housing to violently crash into the broken material when "break-through" occurs.

In any breaking job, the operator should make every ef- fort to “follow” the breaker with “down-pressure” as the machine breaks farther into the material. The breaker should be stopped as soon as “break-thru” occurs or if it is apparent that good solid blows are not occurring.

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Stanley Black & Decker MBX15 user manual Operation, Preparation for USE, Positioning the Excavator, Maintain Down Pressure
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MBX15 specifications

The Stanley Black & Decker MBX15 is a robust and versatile tool designed for professionals and serious DIY enthusiasts alike. Engineered to meet the needs of various applications, this machine stands out in the crowded marketplace of power tools, providing exceptional reliability and performance.

At the heart of the MBX15 is its powerful motor, which delivers impressive torque and speed, enabling users to tackle a wide range of tasks with ease. The efficiency of this motor allows for quick job completion without sacrificing quality. One of the standout features of the MBX15 is its lightweight design, making it easy to handle during extended use. The ergonomically designed handle ensures maximum comfort, reducing fatigue and enhancing user control.

The MBX15 incorporates advanced technologies that set it apart from its competitors. For instance, it features an innovative vibration-dampening system that minimizes user discomfort. This technology is especially beneficial during prolonged operations, allowing for greater precision and fewer errors. Additionally, the tool is equipped with a quick-change system, enabling users to switch attachments seamlessly, thus enhancing productivity.

A distinctive characteristic of the MBX15 is its versatility. It comes with a variety of attachments specifically designed for different applications such as grinding, polishing, and even surface preparation. This multifunctionality makes it an essential addition to any workshop or job site.

The MBX15 also prioritizes safety, incorporating several features to protect users during operation. The integrated safety switch prevents accidental start-ups, and the durable housing safeguards the internal components, ensuring longevity and reliability even in demanding environments.

In terms of design aesthetics, the MBX15 boasts a sleek and modern look, complete with a sturdy build that reflects the quality synonymous with the Stanley Black & Decker brand. This tool not only delivers on performance but also complements the professionalism of its users.

In conclusion, the Stanley Black & Decker MBX15 is a formidable tool equipped with a powerful motor, innovative technologies, and a user-friendly design. Its versatility, coupled with safety features and comfort, makes it an exceptional choice for any project, whether on a professional job site or at home. With its blend of power and efficiency, the MBX15 is truly a reliable partner for all your grinding and surface preparation needs.
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