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Section 6: Troubleshooting
October 2020
Section 6: Troubleshooting
6.1
Failure or Breakdown Research
Table 8.
Event
Actuator does not work
Actuator too slow
Actuator too fast
Leakages on hydraulic
or pneumatic circuits
Incorrect position of
the valve
Hydraulic manual pump
does not work
34
Troubleshooting
Possible cause
Lack of power supply
Lack of pneumatic supply
Blocked valve
Wrong position of the distributor of the
hydraulic manual override
Failure of the control system
Low supply pressure
Low supply pressure
Wrong calibration of flow regulator valves
Wear of the valve
High supply pressure
Wrong calibration of flow regulator valves
Deterioration and/or damage to gaskets
Wrong adjustment of mechanical stops
Wrong warning of micro-switches
Handle positioned on remote control
Leakages on the check valve of the
hydraulic control group
Installation, Operation and Maintenance Manual
Remedy
Restore it
Open line interception valve
Repair or replace
Restore correct position
Call Emerson Customer Service
Restore (Section 1.4)
Restore (Section 1.4)
Restore (Section 3.6)
Replace
Restore (Section 1.4)
Restore (Section 3.6)
Call Emerson Customer Service
Restore (Section 3.4)
Restore (Section 3.5)
Position the handle on the indication
of the operation to make
Call Emerson Customer Service
VCIOM-15792-EN Rev. 0
Troubleshooting
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