Troubleshooting - Stanley HV18 User Manual

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.
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. Use a flowmeter known to be accurate. Check
the flow with the hydraulic oil temperature at least 80 ° F/27°C.
Symptom
Pump/motor does not run with
supply circuit energized.
Tool circuit does not operate tools
properly.
Tool gets too hot.
12 ► HV18 User Manual

TROUBLESHOOTING

Possible Cause
Supply hoses not connected
properly.
Hydraulic supply source relief set
too low.
Flow control valve damaged or out
of adjustment.
Mechanical failure of pump/motor
unit.
Relief valve set too low.
Supply circuit does not provide
enough hydraulic flow.
Couplers or hose blocked.
Inlet screen or cooler clogged with
debris.
Solution
Make sure hoses are connected to
the proper ports. Pressure line must
be connected to the IN port.
Adjust system relief to 2000–3000
psi.
Contact authorized dealer for
service.
Replace pump/motor unit.
Adjust relief valve to 2100–2250 psi.
Make sure supply system provides
at least 13 GPM @ 2000 psi on
HV18301 and at least 16 GPM @
2000 psi for HV18300.
Remove obstruction.
Clean out inlet screen or cooler.