Troubleshooting - Stanley CD10 User Manual

TROUBLESHOOTING

If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem. When
diagnosing faults in 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.
Symptom
Tool will not start.
Low drilling torque.
14 ► CD10 User Manual
Possible Cause
Power not being supplied.
Defective quick disconnect.
Jammed motor.
Flow reversed through
hoses.
Incorrect hydraulic flow.
Defective quick disconnect.
Hydraulic circuit relief set too
low, hoses too restrictive or
the hydraulic fluid is too thick.
Fluid Restriction in hose or
valve. Excess back pressure.
Priority flow control valve is
malfunctioning.
Flow reversed through
hoses.
Too low slip clutch torque.
Solution
Check to make certain that both hoses are
connected.
Turn hydraulic circuit control valve ON.
Check each disconnect separately. Replace as
necessary.
See your authorized dealer for service.
Correct the power source control valve position.
Prevent reverse flow by using only one port from
the valve for pressure, the return tool hose to
the cooler and the filter line. Correct the quick-
disconnect male/ female routing per instructions
and the arrows on the fittings.
Check that the hydraulic power source is
producing 5.8–13–2 gpm /22–50 lpm at 950–
2000 psi /66–140 bar.
Check each disconnect separately.
Set relief valve at 2100 psi / 145 bar.
Locate and remove restrictions.
Use correct fluid.
Fluid not warmed-up. Preheat system.
Hoses too long for hose I.D. Use shorter hose.
See your authorized service dealer for
replacement.
Correct the power source control valve position.
Prevent reverse flow by using only one port from
the valve for pressure, the return tool hose to
the cooler and the filter line. Correct the quick-
disconnect male/ female routing per instructions
and the arrows on the fittings.
Inspect and replace slip clutch washers if
necessary. Set torque to 20±1,5 Nm, 15±1 lbf.ft.
See your authorized service dealer for repair. Do
not overload drill to avoid wear of slip clutch.