8
Service
Malfunctions of the mechanical drive
Operating Instructions – MOVIGEAR
®
performance
148
8 Service
NOTICE
Improper work on the drive units can lead to damage.
Possible damage to property.
• Note that only qualified personnel is permitted to repair drives from
SEW‑EURODRIVE.
• Consult SEW‑EURODRIVE Service department.
8.1 Malfunctions of the mechanical drive
The following table shows troubleshooting options for malfunctions of the mechanical
drive:
Fault Possible cause Measure
Unusual, regular running
noise
Meshing/grinding noise:
Bearing damage
Contact
SEW‑EURODRIVE
Service
Unusual, regular running
noise
Knocking noise: Irregularity
in the gearing
Contact
SEW‑EURODRIVE
Service
Unusual, irregular run-
ning noise
Foreign objects in the oil Stop the drive and contact
SEW‑EURODRIVE SER-
VICE
Oil leaking from the gear
unit cover
Gear unit cover seal leak-
ing
Contact
SEW‑EURODRIVE
Service
Oil leaking from the con-
nection box
Internal seal defective Contact
SEW‑EURODRIVE
Service
Oil leaking from the out-
put-side oil seal
Oil seal defective
Short-term oil and/or
grease leakage at the oil
seal is possible in the run-
in phase (24 hours running
time).
Replace oil seal
Oil leaking from the out-
put-side oil seal
Too much oil
Short-term oil and/or
grease leakage at the oil
seal is possible in the run-
in phase (24 hours running
time).
Correct the oil quantity
25945475/EN – 04/2019
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