Possible Faults In Maintenance; Maintenance And Repair; Changing The Operating Fluid - Siemens Flender FLUDEX 4600 Series Operating Instructions Manual

9.3.3

Possible faults in maintenance

• Maintenance intervals are not being adhered to.
• An incorrect operating fluid and/or an incorrect quantity of operating fluid is being put in.
• No genuine Flender spare parts are being used.
• Specified tightening torques are not being adhered to.
• Old or damaged N­EUPEX flexible elements (12) are being used.
• Fusible safety plugs (163) with an unsuitable fusing temperature are being used.
• Leakage in the vicinity of the coupling is not being identified and as a result chemically aggressive
media are damaging the coupling.
10.

Maintenance and repair

Observe the instructions in section 3, "Safety instructions"!
All work on the coupling must be carried out only when it is at a standstill.
The drive unit must be secured against being switched on accidentally (e.g. by locking
the key switch or removing the fuses from the power supply). A notice should be
attached to the ON switch stating clearly that work is in progress.
Risk of burns after switching off.
Allow the FLUDEX coupling to cool down sufficiently before beginning work.
10.1

Changing the operating fluid

Never change the operating fluid immediately after operation.
There is a risk of scalding.
Allow the coupling and the operating fluid to cool down.
The operating fluid must be changed in accordance with the specifications in table 9.
When changing the operating fluid, care must be taken that the old operating fluid is completely drained
off. This can be done on size 222 through the holes in the fusible safety plugs (103) and on sizes 297 to 590
through the holes in the screw plugs (163).
Observe the environmental requirements in force.
Table 9: Operating temperatures, operating hours and years of use
Operating temperature /
or frequent temperature peaks exceeding 100 °C:
use of Viton seals necessary
only suitable synthetic oils permitted
use of Viton seals necessary
Different operating conditions and changing frequencies are permitted with the agreement of the operating
fluid manufacturer.
FLUDEX 4600 en
Operating instructions 10/2017
Special measures
maximum 80 °C
maximum 95 °C
above 95 °C
Maximum
operating hours
10 000
5000
According to the
specifications of the
operating-fluid
manufacturer
maximum
years of use
5
2
According to the
specifications of the
operating-fluid
manufacturer
27