Stanley Black & Decker MBX138 thru MBX608 Operation, Preparation for USE, Maintain Down Pressure

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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

OPERATION

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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Contents MBX138 Read Wear Eye Manual Protection Hearing Breathing Table of Contents General Safety Precautions Safety PrecautionsSafety Precautions Local Safety Regulations Safety SymbolsBack Head = 17 ± 0.5 bar Tool Stickers & TagsMbxxxx MaxforcePreparation for Operation PRE-INSTALLATION InstructionsPRE-OPERATION Long Term Storage LOW-TEMPERATURE WARM-UP ProcedureSecuring the Tool Positioning the Breaker Tool on the Work Material OperationPreparation for USE Positioning the ExcavatorBreaker Binding BreakingBlank Firing Underwater USE Underwater KIT P/N-39416Bspf 1/2-14 JIS PF 1/2-14 Tool Stop & Lower Bushing Periodic Maintenance ChecksEach DAY METAL-TO-METAL Contact Tool Failure not Covered Under WarrantyWORN-OUT Front Bushings or Retainer Pins Blank Firing or Free RunningCorrosion PryingInternal Material Flaw Tool Failure Covered Under WarrantyBlunt MoilChisel Model Wear Limit DimensionsLower Bushing Tool Stop Upper Bumper Tool BIT Model Dimension a New Part Wear Limit Dimension BTool Retainer PIN Problem Cause Solution TroubleshootingCharging the Main Accumulator When disengaging the tester a POP of nitrogen is normalBar ± Psi ± Charging the Side AccumulatorRecommended Torque Values Recommended Tie Rod Torque ProcedureMBX358 Bolt PatternsNEW MBX408 MBX458 Upper BumperOLD Cover Plate MBX408 & MBX458 Cover Plate MBX608 Record the back-pressure Psi Flow Test ProceduresTest Procedure Heat Load TestUNF SpecificationsSerial Number Locations Models MBX358, MBX408, MBX458 MBX138 Power Cell Illustration QTY Description MBX138 Power Cell Parts List12A 13I05 MBX138 Housing PartsWith S/N 12A MBX208 Power Cell Illustration MBX208 Power Cell Parts List 17E 14A01 MBX208 Housing PartsWith S/N 17E 14A00 MBX258 Power Cell Illustration MBX258 Power Cell Parts List MBX258 Housing Parts MBX308 Power Cell Illustration MBX308 Power Cell Parts List MBX308 Housing Parts MBX358 Power Cell Illustration MBX358 Power Cell Parts List MBX358 Housing Parts Items 55, 58 & 59 see Note MBX408 Power Cell IllustrationMBX408 Power Cell Parts List Item P/N QTY Description MBX408 Housing PartsMBX458 Power Cell Illustration MBX458 Power Cell Parts List MBX458 Housing Parts Items 49, 52 & 53 see Note MBX608 Power Cell IllustrationMBX608 Power Cell Parts List MBX608 Housing Parts Hydraulic Tools Declaration of ConformityTool Bits

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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