Operation
7.2 Fault - causes and correction
44
Edition 09/2022
M3302-01en
• Flange surfaces of screw connections not cleaned.
• Alignment and/or shaft misalignment values not set in accordance with the instructions.
• Coupled machines were not correctly connected to the foundation so that a shifting of
the machines leads to an impermissible displacement of the coupling parts.
• Coupled machines not earthed adequately.
• Coupling guard used is not suitable.
7.2.2.2.3
Maintenance-related causes
7.2 Fault - causes and correction
• Stipulated maintenance intervals not adhered to.
• Spare parts that were used were not original spare parts from Flender.
• Flender spare parts that were used were old or damaged.
• Leak in the area of the coupling not detected so that chemically aggressive substances
damage the coupling.
• Indications of faults, such as noise or vibration, were not heeded.
• Stipulated tightening torques not adhered to.
• Alignment and/or shaft misalignment values not set in accordance with the instructions.
7.2.2.2.4
Specific assembly-related and maintenance-related causes
7.2 Fault - causes and correction
• ELPEX-S rubber disk element 5 (5) and/or 6 (6) no correctly positioned.
• Fitted ELPEX-S rubber disk elements 5 (5) and/or 6 (6) heated up excessively when ap-
plying heat to the coupling parts.
• For types ESD, ESDR and ESDW, rubber disk elements 5 (5) and/or 6 (6) of different
types and ages are used.
7.2.3
Resolving faults
7.2 Fault - causes and correction
7.2.3.1
Replacing wearing parts
7.2 Fault - causes and correction
The rubber disk elements 5 (5) and/or 6 (6) are subject to wear. You can tell from the cracks
on the surface how far advanced the wear is.
Procedure
1. Check the wear of the rubber disk elements 5 (5) and/or 6 (6) (see Maximum permissible
2. If necessary, replace the rubber disk elements 5 (5) and/or 6 (6) (see Replacing wearing
7.2.3.2
Correcting the changed alignment
7.2 Fault - causes and correction
A changed alignment of the coupling during operation often occurs when the coupled ma-
chines shift towards one another. A cause of this can be loose foundation bolts.
Summary of Contents for ELPEX-S
Page 6: ...Table of contents 6 Edition 09 2022 M3302 01en ...
Page 8: ...List of tables 8 Edition 09 2022 M3302 01en ...
Page 10: ...List of figures 10 Edition 09 2022 M3302 01en ...
Page 14: ...Introduction 1 4 Copyright 14 Edition 09 2022 M3302 01en ...
Page 22: ...Description 22 Edition 09 2022 M3302 01en Structure ...
Page 38: ...Assembling 5 3 Aligning the coupling 38 Edition 09 2022 M3302 01en ...
Page 40: ...Commissioning 40 Edition 09 2022 M3302 01en ...
Page 46: ...Operation 7 2 Fault causes and correction 46 Edition 09 2022 M3302 01en ...
Page 56: ...Service and support 9 1 Contact 56 Edition 09 2022 M3302 01en ...