Troubleshooting - Stanley DH1500 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.
Inspecting the tool or installing parts with the hydraulic hoses connected can result in severe personal injury or equipment
damage. To prevent accidental startup, disconnect the hydraulic power before beginning any inspection or installation
task.
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 below. Use a flowmeter known to be accurate. Check the flow with the
hydraulic oil temperature at least 80° F/27° C.
PROBLEM
Hammer will not fire.
Hammer runs slowly.
Hammer runs erratically.
Hydraulic system overheats.
14 DH USER MANUAL

TROUBLESHOOTING

WARNING
CAUSE
Hydraulic flow is in wrong direction.
Low hydraulic oil level.
No flow to breaker.
Main relief set low.
Internal damage.
Damaged quick couplers.
Low hydraulic flow
Internal leakage.
Damaged switch or connection.
Relief set too low.
Internal damage.
Hammer binding.
Chain or lift lug damage
Chain tension too tight
Main relief set low.
Insufficient cooling capability in hydraulic
circuit.
Line/hose size too small.
Excessive back-pressure.
SOLUTION
Reverse the flow.
Fill reservoir.
Have hydraulic circuit tested by
authorized dealer/distributor per
approved procedure.
Have unit serviced by an authorized
dealer/distributor.
Replace.
Have hydraulic circuit tested by an
authorized dealer/distributor per
approved procedure.
Have unit serviced by an authorized
dealer/distributor.
Have carrier serviced by an authorized
dealer/distributor.
Clean hammer in housing.
Perform inspection as listed on Page 13
Have unit serviced.
Have unit serviced by an authorized
dealer/distributor.