Maintenance; General Inspection; Lubrication - ABB M3BL 160 Mode D'emploi

16
EN

6. Maintenance

6

6.1 General inspection

1. Inspect the motor at regular intervals.
2. Keep the motor, the fan grid and the filters clean
3. Check the condition of shaft seals
4. Check the condition of the connections
5. Check the condition of the bearings by listening

6.2 Lubrication

AC-INDUCTION LOW-INERTIA MOTORS
A MOTOR WITH FREQUENCY
CONVERTER SUPPLY MAY BE
ENERGIZED EVEN IF THE MOTOR IS AT
A STANDSTILL.
WARNING
The frequency of checks depends on,
for example, the humidity level of the ambient
air and the local weather conditions. This can
initially be determined experimentally and must
then be strictly adhered to.
in order to ensure free ventilation and cooling.
(e.g., the V-ring or the radial seal) and
replace if necessary.
and mounting and assembly bolts.
for any unusual noise, measuring vibration and
bearing temperature, and inspecting spent
grease. Pay special attention to bearings when
their calculated rated life 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 fitted. The shaft seals must be replaced
with seals of the same quality and characteristics
as the originals when changing bearings.
BEWARE OF ALL ROTATING PARTS!
WARNING
GREASE CAN CAUSE SKIN IRRITATION
AND INFLAMMATION OF THE EYES.
WARNING
6.1.1. Standby motors
If the motor is in standby for a longer period
of time on a ship or in another vibrating
environment, the following measures have to
be taken:
1. The shaft must be rotated regularly every
two weeks (to be reported) by means of
starting up the system. If startup is not
possible for any reason, the shaft must at
least be turned by hand in order to be set in
a different position once a week. Vibration
caused by other equipment on the vessel will
cause pitting of the bearing, which should be
minimized by regular operation/hand turning.
2. The bearing must be greased while rotating
the shaft every year (to be reported). If the
motor has been supplied with a roller bearing
at the driven end, the transport lock must
be removed before the shaft is rotated.
The transport locking must be remounted
before any transportation.
3. All vibration must be avoided to prevent the
bearings from failing. All instructions in the
motor instruction manual for commissioning
and maintenance must also be followed.
The warranty will not cover damage to the
windings and bearings if these instructions
have not been followed.
6.2.1. Motors with permanently
greased bearings
Bearings for motor sizes 250 to 400 are
re-greasable bearings of 2Z, 2RS or an equivalent
type.
Permanently greased bearings in the defined
operating conditions are guaranteed for
20,000 hours of continuous use.