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Installation, operation and maintenance instructions
High voltage flameproof motors for explosive atmosphere
AMD Rg 355-400-450-500
Sleeve bearings maintenance plan
Part of machine
Sleeve bearings and oil
supply unit
Part of machine
Maintenance or inspection work
Check physical, chemical and mechanical properties
of oil.
Data can be obtained from the oil supplier.
Check that all the screws of the bearing support (both
sides) are tightened (tight torque 80 Nm for M12
screws and 180 Nm for M16 screws).
The external fan cover must be dismantled for this
check.
Check
condition
of
oil
through
(discolouring, contamination), possibly clean and re-
use.
Measure
and
record
temperatures
measuring points provided, by hand checks or by
thermometer, if fitted.
Measure machine vibration level using either the
vibration sensors provided or a separate measuring
instrument. Measuring points: middle of bearing
housing, horizontal and vertical planes.
Check oil rings (if provided) for smooth, uniform
running and oil transport. This can be done through
openings in bearing housing.
Check air filter inserted on the exhaust tube coming
out from the ventilation hub on N.D.E. side.
Clean or replace the filter
Check bearings seals for oil leakage and clean if dirty.
Visually inspect the sliding surfaces of components
for edges pressure, scoring, pressure marks, and
eliminate them, if present. The bearing components
must be dismantled for this inspection! See separate
chapter "Dismantling and assembly instructions".
In case of verified strong turbidity of the oil, change it
immediately and determine and eliminate the related
cause.
Change oil (refer to separate chapter "Dismantling and
assembly instructions"). Wash and flush out bearings
and the oil tubes.
Replace worn parts (if bearing parts only
changed, replace the oil after 3 hours running time to
remove metal particles rubbed off during running in).
Maintenance or inspection work
Sheet No
3AAM101044 E
Rev. B
Page 1 of 2
Before first
commissioning
After 6 months 1)
After 18 months1)
After the first 15 running
days
sight
window
After 6 months
2)
After 18 months 1)
values
at
2)
2)
2)
2)
6
months after
commissioning
18
months after
commissioning
are
Issued by: MOLM
01.2023
1)
3)
3)
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