ROTEX
®
Operating/Assembly instructions
Type ZR
KTR-N
Sheet:
Edition:
40215 EN
14 of 15
3
Please observe protection
note ISO 16016.
Drawn:
2018-08-28 Pz
Replacing:
KTR-N dated 2014-03-11
Verified:
2018-09-11 Pz
Replaced by:
Breakdowns
Causes
Elimination
Different operating noise
and/or vibrations
occuring
Misalignment
1) Set the unit out of operation
2) Eliminate the reason for the misalignment (e. g. loose
foundation bolts, breaking of the engine mount, thermal
expansion of unit components, modification of the installation
dimension E of the coupling)
3) For inspection of wear see item inspection
Wear of spider, short-term
torque transmission due to
metal contact
1) Set the unit out of operation
2) Disassemble the coupling and remove remainders of the spider
3) Inspect coupling components and replace coupling components
that have been damaged
4) Insert spider, assemble coupling components
5) Inspect alignment, adjust if necessary
Screws for axial fastening of
hubs working loose
1) Set the unit out of operation
2) Inspect alignment of coupling
3) Tighten the screws to fasten the hubs and secure against
working loose
4) For inspection of wear see item inspection
Fracture of cams
Wear of spider, torque
transmission due to metal
contact
1) Set the unit out of operation
2) Replace complete coupling
3) Inspect alignment
Fracture of the cams due to
high impact energy/overload
1) Set the unit out of operation
2) Replace complete coupling
3) Inspect alignment
4) Find out the reason for overload
Operating parameters do
not meet with the
performance of the coupling
1) Set the unit out of operation
2) Review the operating parameters and select a bigger coupling
(consider mounting space)
3) Assemble new coupling size
4) Inspect alignment
Operating error of the unit
1) Set the unit out of operation
2) Replace complete coupling
3) Inspect alignment
4) Instruct and train the service staff
Early wear of spider
Misalignment
1) Set the unit out of operation
2) Eliminate the reason for the misalignment (e. g. loose
foundation bolts, breaking of the engine mount, thermal
expansion of unit components, modification of the installation
dimension E of the coupling)
3) For inspection of wear see item inspection
e. g. contact with
aggressive liquids/oils,
ozone influence, too
high/low ambient
temperatures etc. causing
physical modification of the
spider
1) Set the unit out of operation
2) Disassemble the coupling and remove remainders of the spider
3) Inspect coupling components and replace coupling components
that have been damaged
4) Insert spider, assemble coupling components
5) Inspect alignment, adjust if necessary
6) Make sure that further physical modifications of the spider are
excluded
Ambient/contact
temperatures which are too
high for the spider, max.
permissible
e. g. with T-PUR
®
T4 = - 50 °C/+ 120 °C
1) Set the unit out of operation
2) Disassemble the coupling and remove remainders of the spider
3) Inspect coupling components and replace coupling components
that have been damaged
4) Insert spider, assemble coupling components
5) Inspect alignment, adjust if necessary
6) Inspect and adjust ambient/contact temperature (possibly
corrective by using different spider materials)
Early wear of spider
(liquefaction of material
inside the spider cam)
Vibrations of drive
1) Set the unit out of operation
2) Disassemble the coupling and remove remainders of the spider
3) Inspect coupling components and replace coupling components
that have been damaged
4) Insert spider, assemble coupling components
5) Inspect alignment, adjust if necessary
6) Find out the reason for the vibrations (possibly corrective by
spider with lower or higher Shore hardness)
6
Breakdowns, causes and elimination