EMG ELDRO EdEx 125/160, Assembly Manual, Page: 59 / 75

Help with malfunctions 8
Faults and troubleshooting 8.1
ELDRO-EdEx-Montageanleitung-607338-EN.docx 59 / 75
8 Help with malfunctions
If used as intended, no typical malfunctions can occur on the EdEx
thruster.
However, malfunctions can occur due to wear or misuse.
Malfunctions on the EdEx thruster may only be rectified when the
system is stopped, disconnected from the power supply and the
movements have come to a standstill.
Observe the Assembly and Disassembly chapters for information on
troubleshooting.
8.1 Faults and troubleshooting
Table 23: Faults and troubleshooting
Fault Possible cause Measure
EdEx thruster does
not lift Motor not running:
Supply line interruption Search for the interruption and rectify
Motor not running:
Switched off by trigger, e.g. motor
protection switch Check the motor protection switch and
fuse elements
Motor not running:
Cable connections have poor contact Clean corroded contacts
Motor not running:
Rotor is blocked in the stator within the
bearing or close to the running wheel
(pump) Replace the thruster and send to the
manufacturer for repair
Thruster loaded too heavily:
Too great an external load in addition
to the brake and reset spring Adjust load to the EdEx thruster
Lack of operating fluid Top up the operating fluid
Lifting rod jammed from the outside Rectify the jam/twisting or lateral forces
in the thrusters to be driven
The EdEx thruster
lifts slowly,
hesitantly, jerkily EdEx thruster loaded too heavily:
Too great an external load in addition
to the brake and reset spring Adjust load to the EdEx thruster
Lifting rod jammed from the outside Rectify the jam/twisting or lateral forces
in the thrusters to be driven
Supply line interruption (two-phase
operation) Search for the interruption and rectify
The EdEx thruster
lifts slowly,
hesitantly, jerkily Air in the pump circuit Actuate EdEx thrusters a few times
when stopped and top up the operating
fluid if required
Check the thruster’s installation position
and version