Stanley CD10 User Manual page 12

Troubleshooting
Symptom
Low drilling torque.
continued
Tool runs too fast.
Trigger operation
erratic.
Control difficult.
Fluid leak at air
gap between motor
and valve housing.
12
Possible Cause
Fluid Restriction in hose or valve.
Excess back pressure.
continued
Priority flow control valve is
malfunctioning.
Flow reversed through hoses.
Too low slip clutch torque.
Incorrect hydraulic flow.
Hydraulic flow reversed.
Priority valve faulty.
Trigger mechanism blocked.
Motor capscrews loose.
Solution
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.
authorized service dealer for repair.
Do not overload drill to avoid wear
of slip clutch.
Check that hydraulic power source
is not producing over 13.2 / 50 lpm
at 950-2000 psi / 66-149 bar.
Correct the tool hoses, IN and OUT
per instructions and if the power
supply valve is reversible, reconnect
the tool return hose to the oil cooler
or to the filter directly.
Do not separate modules. Remove
inspect and replace priority valve if
necessary. See your authorized
service dealer for replacement.
Do not separate modules. Clean
trigger area. Adjust trigger.
Tighten to recommended torque (10
Nm = 7, 5 lbf.ft).
See your
continued