Installation Guide
CAUTION
Overgr%~~slng
beaFings
can
auw
premature
hrlng
andlor
motor
failum
The
amount
of
grease
added
should
be
carefully
controlled.
NOTE
If
lubrication
instruetlons
are
shown
on
the
motor
nameplate,
they
wlll
supersede
th1o
generat
Instruction.
Marathon
Electric
motors
are
pregrclased
with
a
polyurea
mineral
oil
NGU
grade
Ptype
grease
unle-
skated
otherwise
on
the
motor
nameplate.
Same
compatfble
brands
of
polyuma
mineral
base
type
grease
am
Chevron
SR1
#2,
Rykon
Premium
#2,
Emon
Polyrex
EM
or
Texam
Polystsr
RB.
Motors
are
properly
lubricated
at
thetime
of
manufacture.
It
1s
notnecessaryto
lubricateatthe
time
of
Ins!altation
unless
the
motor
has
been
In
storqge
for
a
perbd
of
12
months
or
longer
(refer
to
lubrication
procedure
that
follows).
LUBFUCATION
PROCEDURES
1.
Stop
motor.
Disconnect
and
lock
out
of service.
2.
Remove
contaminants
from
grease
inlet
area,
3.
Remove
filler
and
drain
plugs.
4.
Check
filler
and
drain
holes
for
blockage
and
clean
as
necessary.
5.
Add
proper
type
and
amount
of
grease.
See
the
Relubrication
Time
Inte~1s
table
for
servim
schedule
and
Relubrication
Amounts
table
far
volume
of
grease
requid.
6.
Wipe
off
excess
grease
and
replace
f
lller
and
drab
plugs
(see
following
warning).
7,
Motor
is
ready
for
operation,
WARMING
fi
motor
Is
nmmepl&d
for
hazardous
tocattons,
do
not
run
motor
withauf
all
of
the
gmse
or
draln
plugs
insblled.
RELUBRICATJOM
TIME
INTERVAL
(For
motors
with
regremslng
grovislona).
1.
For
motors
nameplated
as "betted duty
only"
divide
the
above
Internlo
by
3.
2.
Lubricate
J
the
beglnnlng
of
the
season.
Then
foilow
sewice
schedule
above.
SEASONAL
SERVICE:
The
motor
remains
idle for
a
period
of
6
month$
or
more.
STANDARD
SERVICE:
Up
to
16
hours
of
operation per
day,
indoors,
1
OOQF
rnaxlmum
ambient.
SEVERE SERVICE:
Greater
than
16
hours
of
operation
per
day.
Continuous
operation
under
high
ambient
tern
peratu
res
(1
00"
to
1
50°F)
andor
any
of
the
following:
dirty,
motst
locations,
high
vibration
(above
NEMAstandards),
heavy
shaak
loading,
or
where
shaft
extension
end
is
hat.
RELUBRICATION AMOUNTS
(For
mators
wlfh
reQreasing
provisi6na).
WARNING
1.
Dbwnnect
power
before
worklng
on
motor
or
driven
equipment,
2.
Illldors
with
automatic
thermal
protecto~
wltl
automlrticalfy
mart
when
the
protector
temperature
drops
suff
icisntly.
Do
not use
motor8
with
autometie
thermal
protectom
In
applleatlffns
whm
autaQaatic
restart
will
be
Mous
to
personnel
or
equipmmt.
3.
Motors
with
manual
thermal
protectom
may
start
unexpectdly
affer
promtortrips.
If
manual
protedor
trlps,
disconnect
motor
from
power
Iina.
After
protector
cook
(flve
minutes
or
more)
it
can
be
reset
and
power
may
be
applled
to
motor.
4.
Discharge
all
mcitom
befom
servickrg
motor*
5.
Always
keep
hands
and
clothlng
away
from
movlna
mrts.
I
6.
~&r
attemptto
measure
the
temperature
rlse
of
a
motor
by
touch.
Temperatwe
dse
must
bemeasured
by
ttlermbmeter,
resfstanoe,
imbedded
detector,
or
thermocouple.
7.
ElecMcal
repain
should
be
performed
by
trahd
and
qualified
personnel
only.
8.
Failure
to
follow
fnatruct!ons
and
safa
electrical
procedutes
muld
mlt
in
serious
Injury
or
d~th.
9.
#
arafety
guards
are
required,
be
sum
the
guards
aw
in
use.
If
troubleisexperienoed
In the
operatlon
ofthemotor,
mah
sure
that:
1.
The
tisarlngs
are
In
good
condition
and
operating
properly.
2.
There
is
na
mechanical
obstructian
to
prevent
rotation
in
!he
motor
or
in
the
driveh
load.
3.
The
air
gap
is
uniform.
(Cansutt
manufacturer
for
specifications).
4.
All
bolts
and
nuts
are
tightened
securely.
5.
Proper
connection
to
drive
machine
or
load
has
been
made.
In
checking
far
electrical
troubles,
be
sure
that:
1.
The
Ilne voltage
and
frequency
correspond
to
the
voltage
and
frequency
stamped
on
the
nameplate
of
the
motor.
2.
The
voltage
is
actually
available
at
motor
terminals.
3.
The
fuses
and
other
protective
devices
are
in
proper
condition.
4.
All
connections
and
contacts
are
properly
made
in
the
circuits between
the
control apparatus
and
motor.