TECHTOP MS1/MS2 Series - General inspection; Lubrication

LOW VOLTAGE MOTORS - Installation, operation, maintenance and safety manual - rev. 01 - 1.07.2016
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WARNING!
A motor with frequency converter supply may energize even if the motor is at standstill.
5.1 General inspection
1. Inspect the motor at regular intervals, every 3 months is recommended,at least once a year. The frequency of checks depends on, for example, the humidity
level of the ambient air and on the local weather conditions. This can initially be determined experimentally and must then be strictly adhered to.
2. Keep the motor clean and ensure free ventilation airow. If the motor is used in a dusty environment, the ventilation system must be regularly checked
and cleaned.
3. Check the condition of shaft seals (e.g. V-ring or radial seal) and replace if necessary.
4. Check the condition of connections and mounting and assembly bolts.
5. Check the bearing condition by listening for any unusual noise, vibration measurement, bearing temperature, inspection of spent grease or SPM bearing
monitoring. Pay special attention to bearings when their calculated rated life time is coming to an end.
When signs of wear are noticed, dismantle the motor, check the parts and replace if necessary. When bearings are changed, replacement bearings must be of
the same type as those originally tted. The shaft seals have to be replaced with seals of the same quality and characteristics as the originals when changing
bearings.
In the case of the IP 55 motor and when the motor has been delivered with a plug closed, it is advisable to periodically open the drain plugs in order to ensure
that the way out for condensation is not blocked and allows condensation to escape from the motor. This operation must be done when the motor is at a
standstill and has been made safe to work on.
5.2 Lubrication
WARNING!
Beware of all rotating parts!
WARNING!
Grease can cause skin irritation and eye inammation. Follow all safety precautions specied by the gease manufacturer.
Bearing types are specied in the respective product catalogs.
Reliability is a vital issue for bearing lubrication intervals. TECHTOP uses mainly the L1-principle (i.e. that 99% of the motors are certain to make the life time)
for lubrication.
WARNING!
Due to the occurrence as described below, may manifest moderate grease, or grease components in liquid form,leakage from the bearings;as a result of the