TROUBLESHOOTING
This section describes how to find and resolve problems users may experience. If a situation occurs that is not covered, call your Stanley Customer Service representative for assistance.
WARNING
Inspecting the tool or installing parts with the hydraulic hoses connected can result in severe personal injury or equipment damage. To prevent accidental startup, disconnect the hydraulic power before beginning any inspection or installation task.
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 tool, always check that the hydraulic power source is supplying the correct hydraulic flow and pressure to the tool as listed in the table below. Use a flowmeter known to be accurate. Check the flow with the hydraulic oil temperature at least 80 °F/27 °C.
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 low. | authorized dealer/distributor per |
|
| approved procedure. |
| Internal damage. | Have unit serviced by an authorized |
|
| dealer/distributor. |
| Damaged quick couplers. | Replace. |
Breaker runs slowly. | Low hydraulic flow | Have hydraulic circuit tested by an |
| Excessive heat build up. | authorized dealer/distributor per |
|
| approved procedure. |
| Excessive nitrogen pressure. | Have unit serviced by an authorized |
|
| dealer/distributor. |
| Internal leakage. | |
Breaker runs erratically. | Low or excessive | Have carrier serviced by an |
| Damaged switch or connection. | authorized dealer/distributor. |
| Relief set too low. |
|
| Internal damage. |
|
| Tool binding. | Add grease to tool shank. Do not |
|
| pry while operating. |
Breaker runs but at reduced power. | Low accumulator charge. | Have unit serviced by an authorized |
| Excessive | dealer/distributor. |
| Relief set too low. |
|
Breaker leaks oil around tool bit and | Lower seals failed. | Have unit serviced by an authorized |
tool bushing. |
| dealer/distributor. |
Hydraulic system overheats. | Main relief set low. | Have unit serviced by an authorized |
|
| dealer/distributor. |
| Insufficient cooling capability in | |
| hydraulic circuit. |
|
| Line/hose size too small. |
|
| Excessive |
|
MB05 User Manual ◄ 15
