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BA 9142 en 02/2015
4.4 Standard coating and corrosion prevention
The gear unit is to be provided with interior preservation on delivery (see "Technical data" in the gear unit
documentation prepared specifically for the order), and the free shaft ends are to be provided with
protective preservation (see Table 1 in item 4.4.1.1).
The properties of the exterior preservation when using the Siemens standard priming are resistant to:
─ weak acids and alkalis,
─ solvents,
─ weathering, also tropical weathering
─ temperatures up to 120 °C / 248 °F (for short periods up to 140 °C / 284 °F)
If a different exterior coating is intended by the customer (contrary to the Siemens standard), the protection
of the external coating will be within the customer's responsibility.
NOTICE
Property damage
Damage to the gear unit from corrosion is possible.
The gear unit is normally delivered completely ready with a priming and a finishing coat.
Where gear units are delivered with a priming coat only, it is necessary to apply a finishing coat
according to the standard procedures relevant for the specific application.
The priming coat alone is not suitable to provide sufficient long-term corrosion protection.
Note
Corrosion prevention durations of the interior preservation depend on the kind of transport, type of
packaging and the place of installation and/or storage (see Table 2 in item 4.4.2.1).
The durability period of the exterior preservation and the related requirements can be found in Table 1
under item 4.4.1.1.
The warranty starts upon notification of readiness for delivery (see "Technical data" in the gear unit
documentation). The provided interior gear unit preservation is also shown in "Technical data".
When storing differently from the durability periods of preservation as specified in Tables 1 and 2
applicable for the gear unit, the interior preservation must be prolonged (see item 4.4.3) and if necessary,
the exterior preservation must be renewed (see item 4.4.1).
Each prolongation of the interior preservation and any renewal of the exterior preservation must be logged.
Note
The record must be kept with these instructions.
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