Stanley Black & Decker MBX138 thru MBX608 user manual Troubleshooting, Problem Cause Solution

Page 25

TROUBLESHOOTING

If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem.

When diagnosing faults in operation of the breaker, always check that the hydraulic power source is supplying the correct hydraulic flow and pressure to the breaker as listed in the table. Use a flowmeter known to be accurate. Check the flow with the hydraulic oil temperature at least 180 °F/82 °C. An approved test procedure is available in the complete service manual, P/N 41893.

PROBLEM

CAUSE

SOLUTION

Breaker will not fire.

Low hydraulic oil level.

Fill reservoir.

 

No flow to breaker.

Have hydraulic circuit tested by

 

Main relief set too low.

authorized dealer/distributor per

 

 

approved procedure.

 

Internal damage.

Have unit serviced by authorized

 

 

dealer/distributor.

Breaker runs slowly.

Low hydraulic flow.

Have hydraulic circuit tested by

 

 

authorized dealer/distributor per

 

Excessive heat build up.

 

 

approved procedure.

 

Excessive nitrogen pressure.

Have unit serviced by authorized

 

Internal leakage.

dealer/distributor.

Breaker runs erratically.

Low or excessive back pressure.

Have carrier serviced by authorized

 

Damaged switch or connection.

dealer/distributor.

 

Main relief set too low.

 

 

Internal damage.

Have unit serviced by authorized

 

Tool binding.

dealer/distributor.

 

Low hydraulic oil level.

Fill reservoir.

Breaker runs but at reduced power.

Low accumulator charge.

Have unit serviced by authorized

 

Excessive back pressure.

dealer/distributor.

 

Main relief set too low.

 

Breaker leaks oil around tool bit and

Lower seals failed.

Have unit serviced by authorized

tool bushing.

 

dealer/distributor.

Hydraulic system overheats.

Main relief set too low.

Have carrier serviced by authorized

 

 

dealer/distributor.

 

Insufficient cooling capability in

 

hydraulic circuit.

 

 

Line/hose size too small.

 

 

Excessive back pressure.

 

MAXFORCE BREAKER User Manual ◄ 25

Page 24 Page 26
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Page 24 Page 26
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 MaxforcePRE-OPERATION PRE-INSTALLATION InstructionsPreparation for Operation Securing the Tool LOW-TEMPERATURE WARM-UP ProcedureLong Term Storage 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 Each DAY Periodic Maintenance ChecksTool Stop & Lower Bushing 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 WarrantyChisel MoilBlunt Lower Bushing Wear Limit DimensionsModel Tool Stop Upper Bumper Tool Retainer PIN Model Dimension a New Part Wear Limit Dimension BTool BIT 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 PatternsOLD MBX408 MBX458 Upper BumperNEW 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 ListWith S/N 12A MBX138 Housing Parts12A 13I05 MBX208 Power Cell Illustration MBX208 Power Cell Parts List With S/N 17E 14A00 MBX208 Housing Parts17E 14A01 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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