Stanley Black & Decker MBX138 thru MBX608 user manual Tool Failure not Covered Under Warranty

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PROPER USE & CARE OF TOOL BITS

Tool bits are made and heat treated to specification.

Tool bits, however well made, are wear parts, and are used in the most destructive applications. Even when the hydraulic breaker is used properly, and the operator is an experienced one, a tool bit may become damaged. When a tool bit has been damaged, it is useful to de- termine the cause immediately in order to prevent the damage from occurring again.

All Stanley tool bits are machined and hardened for maximum performance. Care must be taken to maintain the tools original condition for optimum productivity and life expectancy. It is not uncommon for an operator who is unfamiliar with using a hammer to break a point. This is part of the learning experience.

Listed below are several methods to determine tool fail- ure and will quickly aid in warranty determination.

TOOL FAILURE NOT COVERED UNDER WARRANTY

BLANK FIRING OR FREE RUNNING

This occurs when the tool is not in proper contact with the work, thus causing the energy produced by the ham- mer to be concentrated on the tool retainer(s) and the retainer slot(s) on the tool itself. Caution should be used to prevent the hammer from sliding off slanted surfaces or when breaking through thin material.

The illustration below is typical of the kind of breakage that occurs from excessive blank firing.

Figure 13. Excessive Blank Firing Breakage

WORN-OUT FRONT BUSHING(S) OR RETAINER PIN(S)

Worn-out front bushing(s) will cause the tool to become misaligned inside the hammer. This misalignment will cause uneven contact between the piston and tool, thus causing stress to concentrate on one particular area of the tool. This can also cause the tool to bind inside the hammer. Call your dealer for acceptable wear allow- ances.

Worn-out retainer pin(s) will cause uneven loading on the pin(s) themselves, causing failure of the tool or re- tainer pin(s). This will also cause excessive wear to the front bushing(s).

METAL-TO-METAL CONTACT

Extreme caution should be used to avoid scratches or gouges on the surface of the tool. These areas create a stress concentration Metal-to-Metal Contact point, thus weakening the tool.

Another form of metal-to-metal contact is galling, which usually occurs from the lack of lubrication. Special care should be taken to keep the tool shank lubricated every two (2) to three (3) hours.

Steel failures that were caused by surface damage take two main forms. The simplest form is caused by deep scratches on working steel surface. The broken surface has a shell pattern around the starting point of failure, similar to the one in the fatigue failure. The other parts of the broken surface are brittle. These failures work slowly through the steel until it suddenly parts completely.

The second form of failure caused by surface damage occurs when there are deep scratches on working steel surface and there was also excessive bending stress. The broken surface also shows the shell pattern, but the other parts of the broken surface are brittle and usually have a “lip” like that in a stress failure.

Figure 14. Metal-to-Metal Contact Examples

MAXFORCE BREAKER User Manual ◄ 17

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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 Preparation for USE OperationPositioning the Excavator Positioning the Breaker Tool on the Work MaterialBreaker 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 WORN-OUT Front Bushings or Retainer Pins Tool Failure not Covered Under WarrantyBlank Firing or Free Running METAL-TO-METAL ContactCorrosion 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 Test Procedure Flow Test ProceduresHeat Load Test Record the back-pressure PsiUNF 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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