Holmatro HGC S Serie Manual De Instrucciones página 46

EN
5 Troubleshooting
5.1 General
Consult the Holmatro dealer if the listed solutions do not give the desired result, or in case of other
problems.
For malfunctions or repair, always specify the model and serial number of the equipment.
5.2 The plunger is not, or only partly, extended
/i
Possible cause
The pressure relief valve on the pump is open.
The couplers are not connected correctly.
The oil volume in the pump is too low.
The connected pump does not work.
The load is too high for the cylinder.
The plunger is jammed inside the cylinder.
5.3 The plunger extends with jerks
/i
Possible cause
There is air in the system.
The plunger is jammed inside the cylinder.
5.4 The plunger extends more slowly than usual
/i
Possible cause
One of the joints leaks.
The couplers are not connected correctly.
The connected pump does not work.
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Solution
Close the pressure relief valve on the pump.
Correctly connect the couplers.
If necessary add hydraulic oil. Use a pump that
can deliver more oil volume.
Inspect the pump.
Use a cylinder with a tonnage that is higher than
the load.
Have the cylinder repaired by a Holmatro
Certified Technician.
Solution
Vent the cylinder. Refer to section 6.5.6.
Have the cylinder repaired by a Holmatro
Certified Technician.
Solution
Have the cylinder repaired by a Holmatro
Certified Technician.
Correctly connect the couplers.
Inspect the pump.
916.000.851_007 HYDRAULIC CYLINDERS