Siemens 1LG4 Manual Del Usuario página 6

ENGLISH
Special greases are introduced on the lubricating data plate.
Avoid mixing different types of grease!
Dismantle the motor to the extent necessary. Pull off the bearing
with a suitable device (see Fig. 6). Clean the journal! Clean the
bearing, or obtain a new one, and pack it with fresh grease.
Pack the bearing cavities flush with grease! The cover plate or
endshield is kept free of grease to prevent overgreasing.
Heat bearings evenly to about 80-100 °C and press on. Heavy
blows (such as with a hammer, ...) should be avoided.
Any worn sealing elements (such as shaft sealing ring, etc.) should
also be renewed.
If springless radial shaft sealing rings are used, the replacement
sealing rings must also be of the springless type.
Regreasing device
In the case of motors with regreasing device, take note of the
information given on the lubricating data plate!
Joint sealing
When reassembling machines with degree of protection IP55 or
higher (see rating plate), the bright surfaces of the joint between
the motor frame and the endshields should be coated with a suit-
able non-hardening sealing compound (such as Hylomar, Curil).
Plastic fan (frame sizes 180M ... 250M)
Plastic fans have two cast-on tabs that snap into the ring groove
on the shaft to prevent axial movement. Before the fan is pulled off
the shaft, these two tabs must be disengaged (screwdriver) and
held temporarily in that position, e.g. by inserting packing. In the
disc at the root of the blades, there are two openings for the claws
of an extractor whose central screw should press against the hub.
On delivery, these openings may be covered by a film of plastic
and later on they should be punched.
A suitable device should be used for pulling the fan off and press-
ing it back on. Hammer blows must be avoided to protect the bear-
ings.
Bestell−Nr. / Order No. 35037000000057
Ausgabe / Edition N14−0105
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