8 Appendix
Ensure totally clean surfaces during mounting. Always use original Alfa Laval parts.
3. Assembl
y
instructions, storage,
preparation, installation
www.nord.com B1000-GB-0713
-9-
3.
Assembl
y
instructions, storage, preparation, installation
Please observe all
of
the general safety information in
Section 1.4,
1.3
and
in
the
individual
sections.
3.1
Storing the gear unit
For short-term storage before commissioning, please observe the follo
w
ing:
Store in the fitting position (see Section 6.1) and secure gear unit
s against falling
Lightly grease bare metal housing surfaces and shafts
Store in dry rooms
Temperature must not fluctuate beyond the range of –5
o
C to +50
o
C
Relative humidity less than 60%
No direct exposure to sunlight or UV light
No aggressive, corrosive substances (contaminated air, ozone, gases, solvents, acids,
alkalis, salts, radioactivity etc.) in the immediate vicinity
No vibration or oscillation
3.2 Long-term
storage
Note!
For storage or standstill
periods in excess of 9 months,
Getriebebau NORD recommends the
long-term
storage
option.
With the long-term storage
option
and
the use
of
the measures
listed below,
storage
for
u
p
to 2 years
is
possible.
A
s
the
actual
influences
on
the unit greatly
depend on the local conditions, these times should only be regarded as guide values.
Conditions of the gear unit and storage area for long-term storage prior to
commissioning:
Store in the fitting position (see Section 6.1) and secure gear unit
s against falling
Transportation damage to the external paint must be repaired. Check that a suitable rust
inhibitor is applied to the flange bearing surfaces. If necessary apply a suitable rust inhibitor
to the surfaces.
Gear units with the long-term storage option ar
e completely filled with lubricant or have VCI
corrosion protection agents added to the gear oil. (See label on gear unit)
The sealing band in the vent plug must not be removed during storage. The gear unit must
remain sealed tight.
Store in a dry place.
In tropical regions, the drive unit must be protected against damage by insects
Temperature must not fluctuate beyond the range of –5
o
C to +40
o
C
Relative humidity less than 60%
No direct exposure to sunlight or UV light
No aggressive, corrosive substances (contaminated air, ozone, gases, solvents, acids,
alkalis, salts, radioactivity etc.) in the immediate vicinity
No vibration or oscillation
Measures during storage or standstill periods
If the relative humidity is <50% the gear unit can be stored for up to 3 years.
Measures before commissioning
If the storage or standstill period
exceeds 2 years or the temperature during short-term
storage greatly deviates
from
the standard range, the
lubricant
in
the gear
unit
must be
replaced before commissioning.
If the gear unit is completely filled, the oil level must be reduced before commissioning.
3. Assembl
y
instructions, storage,
preparation, installation
-10- B1000-GB-0713
www.nord.com
3.3
Transporting the gear unit
Danger!
To prevent injury,
the danger area must b
e
generously
cordoned off.
Standing under the
gear unit during transport is
extremely
dangerous.
Attention!
Avoid damage to the gear unit. Impacts to the free
ends
of the shafts may cause internal
damage to the gear unit.
Use adequately
dimensioned
and
suitable means
of
transportation
. Lifting tackle must be
designed for the
weight of the gear
unit.
The weight
of
the
gear
unit
can be obtained
fr
om the
dispatch documents.
3.4
Preparing for installation
The drive
unit
must be inspected
and
may
only be installed
if no transportation
damage
or leaks
are visible. In particular the radial seals and the sealing caps must be inspected for damage.
All
bare metal surfaces and shafts
of the
gear unit are protected against
corrosion
with oil,
grease or corrosion protection agents before shipping.
Thoroughly remove all oil, grease or corrosion
protection agents and any dirt from the shafts and
flange surfaces before assembly.
In applications
where
an incorrect
rotational
direction
may result in damage
or potential risk,
th
e
correct
rotational
direction
of the drive shaft is
to be established
by test running
the drive when
uncoupled and guaranteeing such for subsequent operation.
Gears with integrated
return
stops
are marked with
arrows
on the driven/driving
sides.
The
arrows point i
n
the rotation direction
of the gear unit. It must be ensured, when
connecting the
motor and during motor
control, that the gear unit can only operate
in the rotation direction,
e.g.
by
means of
a rotary
field test.
(For further
details,
please refer
to Catalogue
G1000
and
WN 0-000 40)
Attention!
With gear
units
with an integrated
back
stop, switching
the drive motor to the blocked rotation
direction, i.e. incorrect rotation direction,
can lead to gear damage.
Ensure that no
aggressive
or corrosive
substances
are
present
in
the
area
surrounding
th
e
installation site or
are
subsequently
expected during operation,
which attack metal, lubricants
or
elastomers.
In case
of doubt,
please
contact Getriebebau
NORD and
take the
recommended
action.
Oil expansion tanks (Option OA) must be fitted in accordance with works standard WN 0-530 04.
Oil expansion tanks (Option OT) must be fitted in accordance with works standard WN 0-521 30.
If venting of the
gear
unit is provided, the
vent
or the pressure vent must be
activated before
commissioning. To activate, remove the transport securing devices (sealing cord). Position of the
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