6 Maintenance
6.4.8.2 Visual Inspection of the Spring Drive Mechanism
Visually inspect dampers for closing and opening for any leaks. Look out for reddish oil traces in the vicinity of the
lower damper fastener (Fig. 69).
) Note
If you find any reddish oil traces at the specified positions (Fig. 69), inform the Siemens representative
responsible and ask for expert assistence.
18.15 Damper for opening
18.41 Damper for closing
Fig. 69 Check the dampers
6.4.8.3 Check Trip Coil and Latching Blocks
Check firm connection of the trip plate (cheese head screws M6x40, tightening torque 8±1 Nm) and the latching
blocks (cheese head screws M 10x70, tightening torque 40±4 Nm) (Fig. 70).
98
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