Troubleshooting - Stanley DR19 User Manual

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 following table. Use a flow meter known to be accurate. Check
the flow with the hydraulic fluid temperature at least 80 °F/27 °C.
Problem
Tool does not run.
Tool does not hit effectively.
Tool operates slow.
12 ► DR19 User Manual

TROUBLESHOOTING

Cause
Power unit not functioning.
Couplers or hoses blocked.
Pressure and return line hoses
reversed at ports.
Mechanical failure of piston or
internal parts.
Power unit not functioning.
Couplers or hose blocked.
Fluid too hot (above 140 °F/60 °C).
Incorrect tool bit.
Low oil flow from power unit.
High back-pressure.
Solution
Check power unit for proper flow
and pressure (7–9 GPM/26–34
LPM, 1500–2000 psi/105–140 bar).
Remove restriction.
Be sure hoses are connected to
their proper ports.
Have inspected and repaired by
authorized dealer.
Check power unit for proper flow
and pressure (7–9 GPM/26–34
LPM, 1500–2000 psi/105–140 bar).
Remove restriction.
Provide cooler to maintain proper
fluid temperature.
Ensure tool bit meets specifications.
Check power source for proper flow.
Check hydraulic system for
excessive back-pressure and
correct as required.