Troubleshooting - Sam HC25 Guia De Inicio Rapido

MAINTENANCE

TROUBLESHOOTING

Problem
Cylinder does not advance,
advances slowly, or advances
in spurts.
Cylinder advances, but does
not hold pressure.
Cylinder does not retract,
retracts part way, or retracts
more slowly than normal.
Use dust caps on couplers when cylinders are disconnected to prevent dirt from entering
the system. Keep parts clean.
Inspect all components for damage or wear before and after use.
The following information is intended as an aid in determining if a problem exists.
For repair service, contact the Authorized SAM Service Center in your area.
Possible Cause
Oil level in pump reservoir is low.
Pump release valve open.
Loose hydraulic coupler.
Load is too heavy.
Air trapped in system.
Cylinder plunger binding.
Leaking connection.
Leaking cylinder seals.
Internal leakage in pump.
Pump release valve closed.
Pump reservoir is over-filled.
Loose hydraulic coupler.
Air trapped in system.
Hose I.D. too narrow.
Cylinder retraction spring broken or
other cylinder damage.
Add oil according to the pump instructions.
Close pump release valve.
Check that all couplers are fully tightened.
Do not attempt to lift more than rated tonnage.
Remove air according to the instructions above.
Check for damage to cylinder.
Have cylinder serviced by a qualified hydraulic technician.
Check that all connections are tight and leak free.
Locate leak(s) and have equipment serviced by
a qualified hydraulic technician.
Have pump serviced by a qualified hydraulic technician.
Open pump release valve.
Drain oil level to full mark.
See pump instructions for adding oil.
Check that all couplers are fully tightened.
Remove air according to the instructions above.
Use larger diameter hydraulic hose.
Have cylinder serviced by a qualified hydraulic technician.
4
Solution