8
Technical data
Extended storage
Assembly and Operating Instructions – Explosion-Proof Gear Units
174
8
Technical data
8.1
Extended storage
8.1.1
Design
SEW‑EURODRIVE recommends the "extended storage" gear unit design for storage
periods longer than 9 months. The lubricant of those gear units is then mixed with a
VCI anti-corrosion agent (
v
olatile
c
orrosion
i
nhibitors). Please note that this VCI anti-
corrosion agent is only effective in a temperature range of -25 °C to +50 °C. The
flange contact surfaces and shaft ends are also treated with an anti-corrosion agent.
As standard, the gear unit with "extended storage" option will be supplied with OS1
surface protection. Instead of OS1, you can order OS2, OS3 or OS4.
INFORMATION
For SPIROPLAN
®
gear units, the extended storage option is not available yet.
INFORMATION
To prevent the VCI anti-corrosion agent from evaporating, the gear units in "extended
storage" design must remain tightly sealed until startup.
The gear units come with the oil fill according to the specified mounting position (M1
– M6). Always check the oil level before you take the gear unit into operation.
8.1.2
Storage conditions
Observe the storage conditions specified in the following table for extended storage:
Climate zone
Packaging
1)
Storage
2)
Storage duration
Temperate
(Europe, USA,
Canada, China
and Russia, ex-
cluding tropical
zones)
•
Packed in contain-
ers
•
With desiccant
and moisture in-
dicator sealed in
the plastic wrap
•
roofed
•
Protected against rain and snow
•
and shocks
Up to 3 years with regu-
lar inspection of the
packaging and humidity
indicator (rel. humidity <
50%)
open
•
Under roof and enclosed at constant
temperature and atmospheric hu-
midity (5 °C < ϑ < 50 °C,
relative humidity < 50%)
•
No sudden temperature variations
•
Controlled ventilation with filter (free
from dust and dirt)
•
No aggressive vapors
•
No shocks
2 years or more with
regular inspections
•
Check for cleanness
and mechanical
damage during the
inspection
•
Check corrosion
protection
24804134/EN – 05/2018