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 | |
| Hydraulic flow is in wrong direction. | Reverse the flow. | |
| Low hydraulic oil level. | Fill reservoir. | |
| No flow to breaker. | Have hydraulic circuit tested by | |
Hammer will not fire. |
| authorized dealer/distributor per | |
Main relief set low. | |||
approved procedure. | |||
|
| ||
| Internal damage. | Have unit serviced by an authorized | |
| dealer/distributor. | ||
|
| ||
| Damaged quick couplers. | Replace. | |
|
| Have hydraulic circuit tested by an | |
| Low hydraulic flow | authorized dealer/distributor per | |
Hammer runs slowly. |
| approved procedure. | |
| Internal leakage. | Have unit serviced by an authorized | |
| dealer/distributor. | ||
|
| ||
| Damaged switch or connection. | Have carrier serviced by an authorized | |
| Relief set too low. | ||
| dealer/distributor. | ||
Hammer runs erratically. | Internal damage. | ||
| |||
| Hammer binding. | Clean hammer in housing. | |
| Chain or lift lug damage | Perform inspection as listed on Page 13 | |
| Chain tension too tight | Have unit serviced. | |
| Main relief set low. |
| |
Hydraulic system overheats. | Insufficient cooling capability in hydraulic | Have unit serviced by an authorized | |
| circuit. | dealer/distributor. | |
| Line/hose size too small. | ||
|
| ||
| Excessive |
|
14 DH USER MANUAL