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TROUBLESHOOTING
PROBLEM
CAUSE
REMEDY
Tool does not run. | Power unit not functioning. | Check power unit for proper flow and pressure |
|
| |
| Couplers or hoses blocked. | Remove restriction. |
| Pressure and return line hoses | Be sure hoses are connected to their proper ports. |
| reversed at ports. |
|
| Mechanical failure of piston or | Disassemble breaker and inspect for damaged |
| automatic valve. | parts. |
Tool does not hit effectively. | Power unit not functioning. | Check power unit for proper flow and pressure |
|
| |
|
| bar. |
| Couplers or hoses blocked. | Remove restriction. |
| Low accumulator charge | Recharge accumulator. Replace diaphragm if |
| (pressure hose will pulse more | charge loss continues. |
| than normal). |
|
| Fluid too hot | Provide cooler to maintain proper fluid |
| (above 140 °F/60 °C). | temperature (130 °F/55 °C). |
| The collar support is not sliding | Remove, clean and replace as required. Make |
| freely in the foot bore. | sure hex bushing is in the proper location. |
Tool operates slow. | Low gpm supply from power | Check power unit for proper flow |
| unit. | |
| High backpressure. | Check hydraulic system for excessive |
|
| backpressure (over 250 psi/17 bar). |
| Couplers or hoses blocked. | Remove restriction. |
| Orifice plug blocked. | Remove restriction. |
| Fluid too hot (above | Check power unit for proper fluid temperature. |
| 140 °F/60 °C) or too cold (below | Bypass cooler to warm the fluid or provide cooler |
| 60 °F/16 °C). | to maintain proper temperature. |
| The collar support is not sliding | Remove, clean and replace as required. Make |
| freely in the foot bore. | sure hex bushing is in the proper location. |
| Relief valve set too low. | Adjust relief valve to |
Tool gets hot. | Hot fluid going through tool. | Check power unit. Be sure flow rate is not too |
|
| high causing part of the fluid to go through the |
|
| relief valve. Provide cooler to maintain proper fluid |
|
| temperature (140 °F/60 °C max). |
|
| Check the relief valve setting. |
|
| Eliminate flow control devices. |
Fluid leakage on tool bit. | Lower piston seal failure. | Replace seal. |
Fluid leakage through charge | Upper piston seal failure or | Replace seals, recharge or replace accumulator |
valve cap. | accumulator | diaphragm. |
| accumulator charge loss or |
|
| failure. |
|
Fluid leakage around trigger. | Valve spool seal failure. | Replace seals. |
BR87 User Manual ◄ 13