GE ML-14-0 - LUBRICATION AND CLEANING; LUBRICATION GUIDELINES; METHOD OF CLEANING BEARINGS; OPTIONAL MAINTENANCE JACKING DEVICE

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
A
careful
inspection
should
be made
to
check
for
loose
nuts
or
bolts
and
broken
retaining
rings
.
All
cam
,
roller
,
and
latch
surfaces
should
be
inspected
for
any
evidence
of
damage
or
excessive
wear
.
Lubricate
the
mechanism
as
out
-
lined
below
,
then
,
using
the
manual
charging
wrench
,
open
and
close
the
breaker
several
times
to
make
certain
that
the
mechanism
operates
freely
through
-
out
its
entire
stroke
.
Check
the
mech
-
anism
adjustments
as
specified
under
ADJUSTMENTS
.
Check
all
terminal
connections
.
the
terminal
boards
.
Failure
to
disconnect
packaged
to
insure
cleanliness
and
to
the
motor
from
the
circuit
may
cause
prevent
oxidation
,
damage
to
the
winding
insulation
.
METHOD OF
CLEANING
BEARINGS
LUBRICATION
Whenever
cleaning
is
required
,
as
In
order
to
maintain
reliable
opera
-
indicated
in
the
lubrication
chart
,
the
tion
,
it
is
important
that
all
mechanisms
following
procedures
are
recommended
,
be
properly
lubricated
at
all
times
.
Most
of
the
bearings
and
rolling
surfaces
utilize
SLEEVE BEARINGS
a
new
type
of
dry
lubrication
that
will
require
no
maintenance
and
will
last
the
life
of
the
equipment
.
Only
a
few
bear
-
ings
and
surfaces
listed
in
the
chart
,
Fig
.
20
,
require
lubrication
.
These
have been
properly
lubricated
during assembly
at
the
factory
using
the
finest
grades
of
lub
-
ricants
available
.
However
,
even
the
finest
oils
and
greases
have
a
tendency
to
oxidize
with
age
,
as
evidenced
by
harden
-
ing
and
darkening
in
color
.
Elimination
of
the
hardened lubricant
is
essential
for
the
Some
of
the
sleeve
bearings
used
throughout
the
linkage
are
Textolite
;
others
are
bronze
.
If
contaminants
are
present
they
should
be removed
by
immersing
the
link
and
bearing
in
clean
petroleum
solvent
or
similar
cleaner and
using
a
stiff
brush
.
Do
not
remove
the
bearings
from
the
links
.
DO NOT
USE
CARBON
TETRACHLORIDE
since
it
may
be
injurious
to
the
user
.
OPTIONAL
MAINTENANCE
JACKING
DEVICE
The
jacking
device
consists
of
two
rods
that
attach
to
the
pin
securing
the
vertical
operating
rod
coupling
(
36
)
,
Fig
.
10
,
and
support
a
platform
for
a
hydrau
-
lic
jack
.
All
of
the
sleeve
bearings
,
for
example
,
the
bearings
of
the
main
shaft
(
2
)
,
Fig
.
20
,
and
the
bearing
of
the
driving
link
(
16
)
,
should
be cleaned
and
lubricated
with
G
-
K
D
50
H
15
lubricant
at
general
overhaul
periods
.
proper
operation
of
circuit
breakers
.
Also
,
frequent
operation
of
the mech
-
anism
causes
the lubricant
to
be
forced
out
from
between
the
bearing
surfaces
.
A
simple
lubrication
will
often
dear
up
minor
disturbances
which
might
be mis
-
taken
for
more
serious
trouble
.
Before
installing
rods
and
platform
remove
the
breaker
from
service
,
dis
-
connect
tire
motor
and
control
power
,
and
discharge
the
closing
springs
by
clos
-
ing
the breaker
or
install
the
spring
blocking
device
.
To
install
the
jacking
device
,
open
the
breaker
and
attach
the
rods
and
platform
to
the
operating
rod
pin
and
contain
with
a
washer
and
cotter
pin
.
Put
the
jack
on
the
platform
with
shims
underneath
to
remove
clearance
between
the
top
of
the
jack
and
the
frame
ROLLER
AND
NEEDLE
BEARINGS
A
definite
lubrication
schedule
All
the
roller
and
needle
bearings
,
for
should
be
set
up
taking
into consideration
example
,
the
cam
follower
bearings
(
23
the
frequency
of
operation
of
the mech
-
and
24
)
,
Fig
.
20
,
trip
latch roller
bearing
anism
and
local
conditions
.
Until
such
a
(
21
and
22
)
and the
cam
shaft
bearings
(
9
schedule
is
worked
out
,
the
mechanism
and
10
)
should
be first
removed
from
the
should be lubricated
at
each
periodic
mechanism and
the
inner
race
disas
-
inspection
and
also
whenever
it
is
over
-
hauled
,
in
accordance
with
the
lubrica
-
tion
chart
.
It
is
also
recommended
that
all
i
sembled
.
They
should
then
be
placed
in
H
container
of
clean
petroleum
solvent
or
similar cleaner
.
DO
NOT
USE
CARBON
TETRACHLORIDE
.
If
the
grease
in
the
operating
mechanisms be
operated
at
bearings
has
become
badly
oxidized
,
it
regular
intervals
to
insure
the
user
that
nuay
be
necessary
to
use
alcohol
(
the
type
used
for
thinning
shellac
)
to
remove
it
,
Ordinarily
,
by
agitating
the
bearings
in
The
lubrication
chart
is
divided
into
the
cleaning
solution
,
and
using
a
stiff
'
d
two
methods
of
lubrication
.
The first
brush
to
remove
the
solid
particles
,
the
%
method
outlines the
maintenance
lubri
-
bearings
can
be
satisfactorily
cleaned
.
Do
cation
which
should
be
performed
at
the
not
handle the
bearings
with
bare
hands
time
of
periodic
maintenance
,
and
requires
no
disassembly
.
The second
method outlines
a
lubrication
procedure
bearings
are
touched
,
the
contamination
similar
to
that
performed
on
the
breaker
can
be
removed
by
washing
in
alcohol
,
at
the
factory
,
but
should
be used
only
in
After
the
bearings
have
been
thoroughly
case
of
a
general
overhaul
or
disassembly
cleaned
,
spin
them
in
clean
new
light
for
other
reasons
,
or
if
the
operation
of
machine
oil
until
the
cleaner
or
solvent
is
the
breaker
becomes
slower
.
The
breaker
may
now
be
jacked
closed
.
The closed
position
is
reached
when
the
props
(
19
)
,
Fig
.
10
,
fall
under
pin
(
68
)
.
circuit
breakers
and their
associated
To
slowly
open
the
breaker
,
hold
the
manual
trip
lever
in
initially
and
allow
the
jack
to
-
slowly
collapse
by
using
the
release
valve
on
the
jack
.
C A U T I O N
:
D O
N O T
ATTEMPT
TO
OPERATE
THE
BREAKER
WITH
THIS
D E V I C E
W H I L E
T H E
BREAKER
IS
ENERGIZED
.
Remove
the
jack
,
rods and
platform
before
returning
the
breaker
to
normal
operation
.
the
equipment
is
operating
freely
.
as
deposits
from
the
skin
onto
the
bearings
are
inductive
to
corrosion
.
If
the
entirely
removed
.
Allow
this
oil
to
drain
off
and
then
repack
the
bearings
immed
-
General
Electric Lubricant
D
50
H
15
iately
with
G
-
E
lubricant
D
50
H
15
being
is
available
in
four
-
ounce
collapsible
sure
all
metal
parts
are
greased
.
Any
tubes
,
order
as
6591901
P
1
.
It
is
so
removable
seals
should
then
be
replaced
.
INSULATION
TEST
If
the breaker
secondary
wiring is
to
be
given
a
hi
-
potential
test
at
1500
volts
a
-
c
,
remove
both
the
motor
leads
from
28
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