M4602-02en Edition 09/2022 47
Commissioning
6
DANGER
Danger due to igniting deposits
During use in potentially explosive atmospheres deposits from heavy metal oxides (rust)
can ignite due to friction, impact or friction sparks and lead to an explosion.
• Ensure through the use of an enclosure or other suitable measures that heavy metal
oxide (rust) deposits on the coupling are not possible.
In order to ensure safe commissioning, carry out various tests prior to commissioning.
Testing before commissioning
DANGER
Danger
Overload conditions can occur during the commissioning of the coupling. The coupling can
burst and metal parts can be flung out. There is a risk of fatal injury from flying fragments.
Bursting of the coupling can lead to an explosion in potentially explosive atmospheres.
• Carry out the tests prior to commissioning.
• Do not touch the rotating coupling.
NOTICE
Coupling damage
Damage to the coupling due to solidified operating fluid.
The operating fluid must be liquid when the coupling is put into operation. The pour point of
the operating fluid must be at least 3K below the minimum expected ambient temperature.
If this is not guaranteed, preheat the coupling accordingly before starting.
1. Check the tightening torques of the screws of the coupling in accordance with section
Tightening torques and widths A/F (Page80).
2. Check the tightening torques of the foundation bolts of the coupled machines.
3. Check whether suitable housing (ignition protection, coupling guard, touch protection,
protection from splashing liquid) has been installed and that the function of the coupling
has not been adversely affected by the housing. This also applies to test runs and rota-
tional direction checks.
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