Seva-tec KSD Series, Operation Manual

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Re-greasing on a running machine as well as downtime re-greasing is possible. Following information
should be noted:
• When the engine is running, make sure that the grease outlet and grease inlet and channel
are open. Inject the intended amount of grease into the bearing and let the machine run for
1 – 2 hours. Close the plug of the grease outlet. There may be a temporary increase in
temperature of the bearing for the next 10 hours.
•
When the motor is at a standstill, only half of the relubricating grease quantity must be used
at first. Then let the motor run for 1 hour. After the motor has been switched off, inject the
rest of the specified relubricating grease quantity into the bearing. After 2 hours of running,
close the grease outlet.
For re-lubrication only ball bearing / roller bearing suitable grease with following properties can be
used:
2-poles 4-poles 6-poles 8-poles
63XX.C3
NU3XX.
C3
63XX.C3
NU3XX.
C3
63XX.C3
NU3XX.
C3
63XX.C3
NU3XX.
C3
Basis oil Mineral oil
Thickener
Lithium
soap
Mixed
thickener
Lithium
soap
Mixed
thickener
Lithium
soap
Mixed
thickener
Lithium
soap
Mixed
thickener
Viscosity
40°C
68-100 100-150 100-150 150-220 150-220 ≥220 150-220 ≥220
Consistency 3
Least
continuous
service
temperature
-30
+120°C
-30
+140°C
-30
+120°C
-30
+140°C
-30
+120°C
-30
+140°C
-30
+120°C
-30
+140°C
Table 8.
Selection of the re-lubrication grease.
SEVA-tec GmbH - Lether Gerwerbestrasse 10 - 26197 Ahlhorn - www.seva-tec.de
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Table 8
displays a grease specification and is only valid for ambient temperatures of – 30°C to +60°C,
bearing temperature up to 110°C and operation with the rated speed. When operating above the rated
speed, special high-speed greases may be used.
8. Auxiliary equipment
The motors are equipped with additional devices:
Caution: use appropriate grease for
re-lubrication.
8.1. Thermal protection
To monitor the stator winding temperature PTC, PTO and PT100 can be used. For their
connection, corresponding auxiliary terminals and circuits are provided in the main terminal
box. If it is necessary to re-measure the cold resistance (at approx. 20 ° C) of the sensor circuit, the
measuring voltage must not exceed 2.5V DC.
8.2. Electromagnetic compatibility
The conformity of the motors as an independent unit with the EMC standards has been
confirmed. The user of machinery is responsible for the fact that appropriate measures are taken to
ensure that the devices or systems, in which the motors are integrated, as a whole
comply with the relevant standards of the EMC. Each motor is supplied with the binding
connection diagram according to which the connection must be made.