KTR Kupplungstechnik
GmbH
D-48407 Rheine
BoWex-ELASTIC
®
Operating/Assembly Instructions
Type HEW and HEW-ZS
KTR-N
Sheet:
Edition:
40114 EN
18 of 20
5
Drawn:
08.11.11 Pz/Hk
Replaced for:
KTR-N valid from 08.04.04
Please note protection
mark ISO 16016.
Verified:
09.11.11 Pz
Replaced by:
5 Enclosure A
Hints and Instructions Regarding the Use in
Hazardous Areas
5.7 Breakdowns, Causes and Elimination
The below-mentioned errors can lead to an incorrect use of the
BoWex-ELASTIC
®
coupling. In addition to the
stipulations in these operating and mounting instructions please make sure to avoid these errors.
The errors listed can only be clues to search for the errors. When searching for the error the adjacent
components must be generally included.
Due to incorrect use the coupling may become a source of ignition.
EC Standard 94/9/EC requires a special care from the manufacturer and the user.
General errors of incorrect use
Important data for the coupling selection were not forwarded.
The calculation of the shaft/hub connection was not considered.
Coupling parts with damage occurred during transport are assembled.
If the heated hubs are assembled, the permissible temperature is exceeded.
The fits of the parts to be assembled are not coordinated with each other.
Tightening torques are fallen below/exceeded.
Components are replaced by mistake/put together incorrectly.
No original KTR parts (purchased parts) are used.
Old elastomer parts/already worn out elastomer parts or elastomer parts that were stored too long are used.
The coupling used/the coupling protection used is not suitable for the operation in hazardous areas and does
not correspond to EC Standard 94/9/EC, respectively.
Maintenance intervals are not observed.
breakdowns causes
hints to danger for
hazardous areas
elimination
misalignment micro
friction at the
toothing of the
elastomer part
danger of ignition due
to hot surfaces
1) put the unit out of operation
2) eliminate the reason for the
misalignment (e. g. loose foundation
bolts, fracture of the engine fixing, heat
expansion of unit components, change
of the assembly dimension E of the
coupling)
3) checking of wear see under point 5.4
change of the
running noises
and / or occurring
vibrations
loose screws for
axial securement of
hubs
danger of ignition due
to hot surfaces
1) put the unit out of operation
2) check alignment of coupling
3) tighten the screws to secure the hubs
and secure against self-loosening
4) checking of wear see under point 5.4
break of the
elastomer part /
toothing
break of the elastomer
part / toothing
due to high shock
energy / overload
---
1) put the unit out of operation
2) disassemble the coupling and remove
remainders of the elastomer part
3) check coupling parts and replace damaged
coupling parts
4) insert elastomer part, assemble coupling
parts
5) find out the reason for overload
