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BA 9142 en 02/2015
4.4.1 Exterior preservation of metallic bright exterior surfaces
4.4.1.1 Maximum durability period of the exterior preservation
Table 1: Durability period for exterior corrosion prevention of shaft ends and other bright machined
surfaces
Durability
of protection
Preservative agent
Layer thickness Remarks
with indoor storage up
to 36 months
1)
Tectyl 846 K19 approx. 50 µm
Long-term wax-based
preservative agent:
– resistant to sea water
– resistant to tropical
conditions
– soluble with CH
compounds
for outdoor storage
up to 12 months
2)
1)
The gear unit must be stored with a cover on a vibration-free, dry base in a place sheltered from
weathering, in the position of use.
2)
If the gear unit is stored outdoors, it must be covered particularly carefully and it must be ensured that
neither moisture nor foreign material can collect on the unit. Waterlogging must be avoided.
4.4.1.2 Prolongation of the preservation of metallic bright exterior surfaces of the gear unit
In case storage periods exceed the periods specified in Table 1 under item 4.4.1.1, the exterior of the gear
unit must be re-preserved using the preservative agent shown in Table 1.
• Clean the surfaces.
• Apply preservative agent (see table 1).
Note
Before start-up, all preservation coats have to be removed from the gear unit according to section 7.1.1.
4.4.2 Preservation of the interior of the gear unit
4.4.2.1 Maximum durability period of the interior preservation of the gear unit
Table 2 shows the maximum durability of the interior gear unit preservation, depending on the kind of
transport, type of packaging and the setup or storage site.
Definition of climatic zones:
A
A
B
North Pole 90°N
South Pole 90°S
Arctic Circle 66.5°N
Antarctic Circle 66.5°S
Northern Tropic 23.5°N
Southern Tropic 23.5°S
Equator 0°
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