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Installation, operation and maintenance instructions
High voltage flameproof motors for explosive atmosphere
AMD Rg 355-400-450-500
Operating faults – Trouble shooting information for Squirrel Cage Induction
motors
Issued by: MOLM
Sheet No.
3AAM101036 E
Rev. B
Page
6 of 8
01.2023
We r
es
erv
e
a
ll r
ig
hts
in
this
doc
umen
t a
nd
in
the
infor
m
ati
on
co
nt
ai
n
e
d
therein. R
ep
ro
du
cti
on
,
use
of
disc
losu
re
t
o t
h
ird
par
ties w
ith
o
ut
expr
ess
a
ut
h
or
ity
is
s
tric
tly
f
or
bidd
en.
x
x
Bearing noisy.
Bearing is exposed to
vibration while the motor is
idle.
Carefully examine the bearing for wear
spots corresponding to the spacing of
rolling
elements.
For
standby
equipments, ball bearings are better
suited than roller bearings to withstand
idle vibrations.
G) Faults of the sleeve bearings.