Troubleshooting - Stanley CH15 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 make sure the hydraulic power source is supplying the cor-
rect hydraulic flow and pressure as listed in the table. Use a flowmeter 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.
CAUSE
Power unit not functioning.
Couplers or hoses blocked.
Pressure and return line hoses re-
versed at ports.
Mechanical failure of piston or
shuttle valve.
Power unit not functioning.
Couplers or hose blocked.
Fluid too hot
Incorrect tool bit .
Low oil flow from power unit.
High backpressure.

TROUBLESHOOTING

SOLUTION
Check power unit for proper flow and
pressure 7–9 gpm/26–34 lpm, 2000
psi/140 bar for 8 gpm model.
Check power unit for proper flow and
pressure 4–6 gpm/15–23 lpm, 2000
psi/140 bar for 5 gpm model.
Remove restriction.
Be sure hoses are connected to their
proper ports.
Have inspected and repaired by autho-
rized dealer.
Check power unit for proper flow and
pressure 7–9 gpm/26–34 lpm, 2000
psi/140 bar for 8 gpm model.
Check power unit for proper flow and
pressure 4–6 gpm/15–23 lpm, 2000
psi/140 bar for 5 gpm model.
Remove restriction.
Provide cooler to maintain proper fluid
temperature. (Above 140 °F / 60 °C).
Ensure tool bit meets specifications.
Check power source for proper flow.
Check hydraulic system for excessive
backpressure and correct as required.
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