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

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

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.

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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.