Operating manual
Explosion-protected gear units C/F/K/S
2
ID 443028_en.01
WE KEEP THINGS MOVING
01/2019
en
www.stober.com
3
Description of the gear unit
The technical data of the gear unit/geared motor can be found
in the order confirmation. This refers to the lubricant used that
is specified on the nameplate of the gear unit. Other technical
data as well as dimensional drawings can be found in the ap-
propriate catalog from STOBER.
3.1 ATEX identification
The gear unit is identified on the ATEX nameplate as follows.
1) According to IEC 60079-10-X
4
Transportation and storage
When transporting the gear units/geared motors make certain
not to damage the shafts and bearings with impacts.
For transport of the gear units/geared motors C6-C10 and K5
- K10 use the eyebolts on the gear unit housing. Lift the other
gear units/geared motors directly on the gear unit housing us-
ing a suitable lifting cable.
Eyebolts are provided only for lifting the gear units/geared
motors without additional attachments. When you remove the
eyebolts after installation, the threaded holes must be perma-
nently closed corresponding to the protection type of the gear
units/geared motors.
The gear units/geared motors may only be stored in en-
closed, dry rooms. Storage in open air areas with a roof is only
permitted for brief periods. Protect the gear units/geared mo-
tors from all damaging environmental effects and mechanical
damage.
Avoid extreme temperature fluctuations with high relative hu-
midity when the gear units/geared motors are being stored
temporarily to prevent formation of water from condensation.
Long-term storage
If long-term storage is planned, protect the bare parts of the
gear unit against corrosion. Completely fill the gear unit with
lubricant that is specified on the nameplate. Reduce the lubri-
cant to the correct filling quantity according to the nameplate
before commissioning the drive.
5
Mounting
Inspect the delivery for any transport damage immediately af-
ter you receive it. Notify the transport company of any dam-
age immediately. Do not operate damaged gear units/geared
motors.
Remove the packaging of the gear unit/geared motor and dis-
pose of it according to the applicable legal requirements on
site.
Check the following before installing the gear unit:
•
Do the specifications on the ATEX nameplate of the gear
unit (gear group, category, EPL, temperature class and
maximum surface temperature) correspond with the
zone subject to explosion hazard where the gear unit is
to be used?
•
Is the gear unit installed in a zone that is not subject to ex-
plosion hazard?
•
Do all drive and output elements to be mounted have ap-
propriate explosion protection?
NOTICE
The lip seals of the shaft seal rings can be damaged by
the use of solvents.
When removing the corrosion protection, make sure that
the lip seals of the shaft seal rings do not come into con-
tact with solvents.
Completely remove all corrosion protection on the shaft ends
prior to installation.
5.1 Installation positions
The version of the gear unit and the lubricant amount filled at
the factory is matched to the installation position of the gear
unit. The gear unit may therefore only be installed at the in-
stallation position specified in the order confirmation. A sign
on the gear units shows which gear unit side must point down-
wards.
II
2
G
Ex
h
IIC
T3
Gb
Identification according to
ATEX Directive
Identification according to
EN ISO 80079-36
Code Designation
Explanation
Ex-symbol
According to ATEX
Directive
II
Device group
2
3
Device category
G
D
Type of explosive
atmosphere
Gas
Dust
Ex
Ex-symbol
According to EN ISO
80079-36
h
Code letter for non-
electrical devices
IIC
IIIC
Explosion group
Gases (such as hydrogen)
Combustible suspended
particles non-conductive
and conductive dusts
T3
T4
T200°
T120°
Temperature class
For gases (max. 200°C)
For gases (max. 135°C)
For dusts (max. 200°C)
For dusts (max. 120°C)
Gb
Gc
Db
Dc
Equipment Protection
Level (EPL)
For zone 1
1
For zone 2
1
For zone 21
1
For zone 22
1
