GE ML-14-0 User manual

INSTRUCTIONS
GEK
7153
c
SUPERSEDES
GEK
-
7163
F
SPRING
-
CHARGED
OPERATING
MECHANISM
t
TYPE
ML
-
14
-
0
r
.
i
FOR
&
<
OIL
-
BLAST
CIRCUIT
BREAKERS
!
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CONTENTS
Introduction
.
.
Receiving
,
Handling
and
Storage
,
.
Description
.
.
.
Installation
.
.
.
Operation
.
.
.
Maintenance
.
.
Replacement
Parts
3
)
3
3
5
22
25
33
;
GENERAL
ELECTRIC
Courtesy of NationalSwitchgear.com

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
*
—
——
—
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08
ER
CIRCUIT
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REFER
TO
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PURCHASERS
WIRING
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Close
Control
Power
-
Fused
Disconnect
Switch
Heater
Power
-
Fused
Disconnect
Switch
Trip
Control
Power
-
Fused
Disconnect
Switch
Recloser
Cut
-
out
Switch
Oil
Circuit
Breaker
8
C
Permissive
Control
Switch
Opened
by
manual
tripping
device
on
the
mechanism
-
Hand
Reset
to
Close
ACR
Recloser
Interlocking
Relay
and
Contacts
for
79
Recloser
Timing
Motor
Clutch
Release
Unit
and
Contacts
for
79
Anti
-
pump
Unit
and
Contacts
for
79
69
8
H
8
T
79
E
?
?
43
A
M
i
52
R
V
Normally
Open
Auxiliary
Switch
-
Open
when
52
is
open
Normally
Closed
Auxiliary
Switch
-
Closed
when
52
is
open
Closing
Coil
Control
Switch
Z
a
•
•
ft
i
b
CC
cs
CL
/
MS
Closing
Latch
Monitoring
Switch
lc
Trip
Latch
Checking
Switch
M
Spring
-
charging
Motor
SM
/
LS
Limit
Switch
for
Spring
-
charging
Motor
TC
Trip
Coil
FU
Fuse
Green
Indicating
Lamp
Heater
Resistor
Red
Indicating
Lamp
Protective
Device
G
HTR
RES
R
Anti
-
pump
Auxiliary
Relay
Y
PD
Fig
.
1
Typical
Connection
Diagram
Breaker
Position
-
Open
Closing
Springs
—
Discharged
(
For
actual
wiring
see
connection
diagram
furnished
with
equipment
)
u
2
Courtesy of NationalSwitchgear.com

SPRING
-
CHARGED
OPERATING
MECHANISM
TYPE
ML
»
14
~
©
INTRODUCTION
operating
equipment
are
enclosed
in
a
weatherproof
housing
designed
for
mount
-
ing
on
the
front
end
of
the
breaker
.
D
-
c
voltage
is
required
for
the
control
circuit
.
OPERATION
.
The
following
instructions
A
-
c
voltage
is
recommended
for
the
will
provide
information
for
placing
the
spring
-
charging
motor
and
required
for
mechanism
and
breaker
in
service
and
for
the
heater
circuits
.
Since
the
control
the
necessary
maintenance
.
It
should
be
circuit
requires
very
low
operating
cur
-
kept
in
mind
that
the
illustrations
in
the
rents
,
the
.
necessity
for
large
storage
instruction
book
are
for
illustrative
pur
-
batteries
or
rectifiers
is
eliminated
,
poses
and
may
not
always
be
an
actual
Batteries
are
recommended
for
the
d
-
c
picture
of
the
equipment
being
furnished
,
source
.
The
mechanism
and
its
accessories
For
final
information
always
refer
to
the
will
operate
at
the
standard
ANSI
voltage
drawings
that
are
furnished
separately
ratings
.
The
breaker
nameplate
is
with
the
equipment
.
For
additional
mounted
on
the
inside
of
the
front
door
of
the
mechanism
housing
.
PROPER
INSTALLATION
AND
MAINTENANCE
ARE
NECESSARY
FOR
CONTINUED
SATISFACTORY
The
Type
ML
-
14
-
0
operator
is
a
spring
operated
mechanism
for
outdoor
oil
-
blast
circuit
breakers
.
It
is
designed
for
high
speed
operation
during
the
circuit
breaker
interruption
of
faults
and
high
speed
reclosing
.
It
is
mechanically
trip
-
free
and
non
-
pumping
when
closed
on
short
circuits
.
Its
high
speed
characteristic
is
the
result
of
a
simple
,
ingenious
,
rugged
linkage
design
having
low
-
friction
bear
-
ings
.
instructions
on
the
circuit
breaker
,
refer
to
the
breaker
instruction
book
.
mechanism
and
associated
The
RECEIVING
,
HANDLING
AND
STORAGE
Each
mechanism
is
carefully
in
-
removed
carefully
using
a
nail
puller
,
to
prevent
rusting
.
If
stored
for
any
spected
and
packed
by
workmen
exper
-
Check
all
parts
against
the
packing
list
to
length
of
time
,
periodic
inspections
fenced
in
the
proper
handling
and
packing
make
certain
that
no
parts
have
been
should
be
made
to
see
that
corrosion
has
of
electrical
equipment
.
Immediately
overlooked
while
unpacking
.
Always
not
taken
place
and
to
insure
good
mech
-
upon
receipt
of
a
mechanism
,
an
examin
-
search
the
packing
material
for
hardware
anical
condition
.
If
possible
,
the
space
ation
should
be
made
for
any
damage
that
may
have
loosened
in
transit
,
sustained
during
shipment
.
If
injury
or
rough
handling
is
evident
,
a
damage
claim
should
be
filed
with
the
transportation
company
,
and
the
nearest
General
Elec
-
in
the
proper
location
immediately
,
and
it
trie
Apparatus
Sales
Office
should
be
is
necessary
to
store
the
equipment
,
it
under
unfavorable
atmospheric
condi
-
promptly
notified
.
©
heater
should
be
energized
to
prevent
moisture
condensation
inside
the
mech
-
anism
housing
.
If
the
mechanism
cannot
be
installed
Should
the
mechanism
be
stored
should
be
kept
in
a
clean
,
dry
place
pro
-
tions
,
steps
should
be
taken
to
dry
out
tected
from
mechanical
injury
.
Machined
the
mechanism
before
it
is
placed
in
The
crating
or
boxing
must
be
parts
should
be
coated
heavily
with
grease
service
DESCRIPTION
located
a
motor
for
charging
the
closing
springs
,
closing
spring
’
s
operating
mech
-
The
control
house
for
this
mech
-
anism
,
auxiliary
switch
and
the
control
anism
is
a
steel
weatherproof
house
panel
with
its
relaying
,
operating
and
which
contains
a
felt
strip
as
a
sealant
control
switches
and
BCT
terminal
around
the
doors
.
Inside
this
housing
are
boards
.
The
ML
-
14
spring
-
charged
operator
consists
of
motor
operated
closing
springs
with
the
associated
mechanism
and
control
equipment
.
The
unit
is
designed
to
operate
large
outdoor
oil
circuit
break
-
ers
with
provision
for
closing
,
opening
,
trip
-
free
and
reclosing
operations
These
instructions
do
not
purport
to
cover
all
details
or
variations
in
equipment
nor
to
provide
for
every
possible
contingency
to
be
met
in
connection
with
installation
,
operation
or
maintenance
.
further
information
be
desired
or
should
particular
problems
arise
which
are
not
cove
2
:
ed
sufficiently
for
the
purchaser
’
s
purposes
,
the
matter
should
be
referred
to
the
General
Electric
Company
.
©
Should
To
the
extent
required
the
products
described
herein
meet
applicable
ANSI
,
IEEE
and
NEMA
standards
;
.
but
no
sticb
assurance
is
given
with
respect
to
local
codes
and
ordinances
because
they
vary
greatly
.
3
Courtesy of NationalSwitchgear.com

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
-
-
53
'
'
I
MULTI
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-
7
9
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s
ON
5
s
GO
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N
ob
E
23
.
Closing
Latch
Monitoring
Switch
Operating
Lever
Manual
Close
Push
Rod
Button
Eccentric
Manual
Charging
Stud
(
5
/
8
inch
hex
)
Driving
Link
Right
Closing
Spring
Breaker
Nameplate
Current
Transformer
Nameplate
Driving
Chain
Heater
Charge
-
discharge
Indicator
Window
Closing
Spring
Blocking
Device
Operation
Counter
Trip
Coil
(
52
TC
)
Operation
Counter
Window
Lock
-
out
Switch
(
69
Device
)
Bushing
Current
Transformer
Terminal
Boards
Manual
Trip
Lever
Trip
Latch
Roller
Manual
Trip
Push
Button
Ratchet
Wheel
13
.
1
.
House
Support
Bracket
2
.
Breaker
Vertical
Operating
Rod
3
.
Auxiliary
Switch
4
.
Output
Crank
5
.
Prop
Reset
Spring
6
.
Trip
Latch
7
.
Charge
-
discharge
Indicator
8
.
Guide
Block
9
.
Motor
Limit
Switches
10
.
Latch
Checking
Switch
11
.
Spring
-
charging
Motor
12
.
Left
Closing
Spring
14
.
24
.
15
.
25
,
16
.
26
.
17
.
27
.
28
.
18
.
29
.
30
.
19
.
31
.
20
.
32
.
21
.
33
.
22
.
i
Fig
.
2
Front
View
of
Mechanism
4
Courtesy of NationalSwitchgear.com

Spring
-
charged Operating
Mechanism
Type
ML
-
14
-
0
GEK
7153
Remove
the
wax
NOTE
:
paper
strips
which
are
be
-
tween
the
door
jam
and the
doors
of
the
control
house
is
either
ac
or
d
-
e
,
but
preferably
a
-
c
.
when
in
use
.
NEVER
AT
-
TEMPT
SLOW
MANUAL
CLOSING
WITH
THE
BLOCKING
DEVICE
IN
PLACE
AND
THE
BREAK
-
ER
IN
SERVICE
.
OPERATE
SLOWLY
AND
MANUALLY
ONLY
WHEN
THE
BREAK
-
ER
HAS
BEEN
COMPLETE
-
LY
DEENERGIZED
AND
ISOLATED
.
f
)
Also
provided
on
the
equipment
is
a
manual
trip
device
.
This
consists
of
a
mechanism
for
manually tripping
the
breaker
and
a
lock
-
out
switch
for
opening
the
closing
circuit
,
io
prevent
the
breaker
from
closing
from
a
remote
source
when
it
is
tripped
by
this mechanism
locally
.
before
energizing
the
heater
.
These
strips
are
for
paint
pro
-
tection
during
shipment
and
will
not
make
a
good
weather
seal
if
left
in
place
.
Control
voltages
are
given
on
the
nameplate
.
The
motor
operating
voltage
NOTE
:
This
mechanism is
designed
for
electrical
closing
INSTALLATION
During
the
installation
of
the
mech
-
obtain
the
correct
alignment
of
the
ver
-
anism
,
it
is
necessary
to
make
reference
tical rod and
its
cover
pipe
,
to
the
instruction
book
for
the oil circuit
breaker
that
it
operates
.
Use
control
wiring
of
adequate
size
so
that
with full
operating
current
flow
-
ing
to
the
operating
mechanism
,
the
voltage
across
the
terminals
of
tire mech
-
anism
will
be within
the limits
specified
as
standard
for
the
range
of
control
voltage
.
Raise
the
mechanism
with
a
crane
and
align
the
mounting
stud
holes
in
the
The mechanism
and
housing
are
mechanism
housing
to
those
on
the
normally
shipped
fastened
directly
to
the
breaker framework and
insert
the
studs
,
frame
of
the oil
circuit
breaker
.
The
Tighten
all
nuts
securely
and
lock with
mechanism
is
installed and
properly
ad
-
set
screws
.
Use
the
proper
connection
diagram
justed
when
received
.
The
trip
latches
are
*
for
each
individual
job
for
testing
and
fastened
during
shipment
and this
fasten
-
Install the
vertical
operating
rod
making
connections
.
The
mechanism
is
ing
should be
removed
after
the
breaker
cover
pipe
between
the
front
crank
cover
wired
completely
at
the
factory
to
has been
moved
into
position
.
support
and
the
top
of
the mechanism
terminal
boards
mounted
on
the
bottom
housing
.
Sometimes
it
is
convenient
to
of
the
control
panel
.
Incoming
conduits
install
this
cover
pipe
prior
to
raising
the
can
be
terminated
in
a
removable
plate
in
housing
into
position
on
the
breaker
If
the
mechanism and
housing
are
tank
.
Next
install the vertical
operating
shipped
separately
,
or
the mechanism
and
ro
(
j
,
The
length
of
the
operating
rod
housing
have
been
removed
from
the
be
adjusted
by
means
of
right
-
and
left
-
breaker
for
shipment
,
then
it
is
necessary
hand threaded
couplings
on
the ends
to
to
fasten
the mechanism
and
housing
in
obtain
the
required
breaker
adjustment
position
.
MOUNTING
the
housing
floor
directly
under
the
terminal boards
.
This
plate
can
be
drilled
to
suit
any
conduit
requirements
.
It
is
recommended
that all
conduits
entering
the mechanism
housing
be
sealed
off
at
their
entrances to
the
housing
.
can
,
as
described
in
the
breaker
instruction
book
.
ADJUSTMENTS
The
breaker
frame
to
which
the
oper
-
ating
mechanism
is
to
be mounted
should
first be
plumb
.
This
procedure
is
described
in
the
breaker
instruction
book
.
By
mounted
,
electrical
connections
can
be
placing
a
plumbed
straight
edge
extending
made
.
Before
making
these
,
precautions
from
top
to
bottom
against
the
mech
-
should be taken
to
see
that
all
leads
to
be
anism
mounting
pads
on
the
breaker
connected
to
the
mechanism
are
de
-
framework
,
determine the
amount
of
energized
,
shim washers
needed
to
make
them
all
flush
.
To
this
amount
add
an
equal
number
of
shims
to
each
of
the
pads
so
as
it
is
practicable
.
Control
wires
must
be
that
there
is
a
nominal
one
-
quarter
inch
run
separately
and
remote
from
high
thickness
of
shims
.
A
single
brass
washer
tension
leads
and
not
in
the
same
duct
or
is
to
be
placed
between
the
steel washers
parallel
to
high
tension
leads
unless
the
and
the
mechanism
housing
and
against
distance
separating
the
two
sets
of
wiring
the
gasket
for
more
effective
sealing
is
sufficient
to
prevent
posssible
commun
-
against
the
entrance
of
water
.
It
may
be
ication between
them
as
a
result
of
short
necessary
to
add
or
remove
steel
shims
to
circuits
.
CONNECTIONS
Although
the
mechanism
has
been
adjusted
and
tested
at
the
factory
,
it
is
advisable
to
check
all
the
following
points
as
well
as
those
listed
under
FINAL
INSPECTION
to
be
sure
that
no
change
has
occurred
during
shipment
and
instal
-
lation
.
No
adjustments
should
be
altered
unless
this
inspection
indicates
it
is
neces
-
sary
.
9
After
the
mechanism
has
been
Rim
control
wires
in
conduit
insofar
Use
manual
operation
for
all
pre
-
liminary
inspection
.
After
the
mechanism
is
connected
to
the
breaker
,
operate
it
slowly
to
see
that
the
operation
is
smooth
throughout
the
closing
stroke
,
that
no
binding
occurs
,
and
that
no
excessive
play
o
5
Courtesy of NationalSwitchgear.com

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
When
the
springs
have
reached
the
Fig
.
2
,
no
longer
is
advanced
.
The
closing
fully charged
position
the
indicator
(
7
)
}
spring
blocking
device
(
13
)
,
Fig
.
2
,
can
Fig
.
2
,
will
read
“
CHARGED
”
,
and
the
now
be
removed
,
DO
NOT
OPERATE
driving
pawl (
4
)
,
Fig
.
5
,
will be
raised
OR
PUSH
THE
MANUAL
CLOSE
BUT
-
from
the
ratchet
wheel
teeth
,
Additional
TON
(
24
)
,
FIG
.
2
,
WHILE
THE
BREAK
-
turning
of
the
eccentric
will
not
advance
ER
IS
IN
THE
CLOSED
POSITION
,
the ratchet wheel
.
The
latching
and
safety
Damage
to
the
linkage
,
ratchet
wheel
and
pawls
(
16
)
,
Fig
,
3
,
work
in
conjunction
pawls
might
occur
,
This
damage
would
be
with
the
driving
pawl (
4
)
,
Fig
.
5
,
to
pre
-
caused
by
the
energy
of
the
springs
not
vent
the ratchet
wheel
(
73
)
,
Fig
.
10
,
from
being
absorbed
by
the
mechanism
linkage
turning
backwards
due
to
the
force
of
the
and
breaker
in
the
spring
hitting
a
station
-
closing
springs
as
the
ratchet
wrench
(
7
)
,
ary
linkage
instead
of
pushing
a
movable
Fig
.
5
,
is
operated
.
linkage
.
Insert
the
spring
blocking
device bar
(
13
)
,
Fig
.
2
,
into
both
springs
and
man
-
ually
discharge
the
springs against
the
pins
by
pushing
the
manual
close
button
(
24
)
,
Fig
.
2
.
The
springs
are
now
blocked
and
slow
closing
of
the
breaker
contacts
can
be
accomplished
by
again
turning
the
driving
eccentric with
a
5
/
8
ratchet
wrench
.
is
noticeable
between
parts
.
Electrical
operation
should
be
attempted
only
after
it
is
certain
that
all
mechanism
adjust
-
ments
are
made
correctly
and
that
the
oil
circuit
breaker
is
correctly
adjusted
according
to
its
instructions
.
The
breaker
and
mechanism
adjust
-
ments
must
be
checked
when the
mech
-
anism
is
being
manually
closed
since
the
mechanism
can
only
be
operated
slowly
in
the
closing
direction
.
UNDER
NO
CIRCUMSTANCES
SHOULD
THE
BREAKER
BE
TRIPPED
MANUALLY
OR
ELECTRICALLY
WITHOUT
OIL
IN
THE
TANKS
UNTIL
THE
PROPER
BREAKER
INSTRUC
-
TION BOOK
HAS
BEEN
CHECKED
TO
DETERMINE
WHETHER
OR
NOT
THE
BREAKER
CAN
BE
OPERATED
WITH
-
OUT
OIL
IN
THE
TANKS
.
Operate
the
circuit
breaker electri
-
cally
several
times
.
Check
the
control
voltage
as
described
under
CONTROL
POWER
CHECK
.
NOTE
:
If
the
breaker
sec
-
ondary
wiring
is
to
be
given
a
hi
-
potential
test
at
1500
volts
a
-
c
,
remove
both the
major
leads
from
the
terminal
con
-
nection
.
Failure
to
disconnect
the
motor
from
the
circuit
may
cause
damage
to
the
winding
insulation
.
The
spring
blocking
device
is
made
to
extend
out
the
right
door
and
must
be
removed
in
order
to
close the
door
.
This
is
to
prevent
leaving
the
mechanism
blocked
accidentally
after
maintenance
.
Each mechanism
is
furnished
with
a
blocking
device
and should
remain
in
the
bottom
of
the house
since
the
spring
centers
may
differ
from
unit
to
unit
.
Manual
operation
of
the
mechanism
should
not
be
attempted
until
the
bearing
surfaces
of
the
mechanism
have been
checked
for
lubrication
.
Refer
to
the
section
on
lubrication
for
the
proper
oils
and
greases
.
TRIP
LATCH
WIPE
MANUAL
OPENING
Refer
to
Fig
.
10
and
to
“
U
”
,
Fig
.
13
,
The
wipe
of
the
trip
latch
(
50
)
,
Fig
.
10
,
on
the
trip
latch roller
(
52
)
should be
from
3
/
16
inch
to
1
/
4
inch
.
This
can
be
measured
by putting
a
film
of
grease
on
the
latch
(
50
)
,
closing
the
breaker
part
The breaker
can
be
tripped
manually
by
operating
the
manual
trip
level
(
4
)
,
Fig
.
3
.
This
will
give
an
opening
operation
very
similar
to
that
obtained
.
when
the
breaker
is
tripped
electrically
,
The
break
-
er
cannot
be
opened
slowly
,
except
with
an
optional
maintenance
jacking
device
.
During
the
slow
closing
operation
check
to
insure
that
the mechanism
does
not
stick
or
bind
during
the
entire
stroke
,
that
it
latches
securely
in
the
closed
position
,
and
that
it
trips
freely
when
the
way
,
and
tripping
.
The
mechanism
has
manual
trip
lever
(
19
)
,
Fig
,
2
,
is
operated
,
the
proper
trip
latch
wipe
when the latch
The
breaker
should
not
be
operated
elec
-
rests
against
the
stop
pin
(
53
)
.
No
adjust
-
fcricaUy
until
it
has
been
operated
several
ment
is
provided
and
a
visual
inspection
is
times
manually
to
insure
freedom
of
usually
all
that
is
required
.
If
this
setting
action
.
At
this
time
,
also check
the
is
not
correct
,
look
for
insufficient travel
breaker
adjustments
as
given
in
the
of
the
trip
shaft
(
24
)
,
breaker
instruction
book
.
MANUAL
CLOSING
DISCONNECT
THE
POWER
TO
THE
SPRING
-
CHARGING
MOTOR TO
PREVENT
ITS
OPERATION
BEFORE
OPERATING
THE
BREAKER
MANU
-
ALLY
AND
ALSO
BEFORE
MAN
-
UALLY
CHARGING
THE
CLOSING
SPRINGS
.
To
operate
the
mechanism
manually
charge
the breaker
closing
springs
(
12
)
and
(
28
)
,
Fig
.
2
,
manually
using
a
5
/
8
inch
ratchet
wrench
on
the
manual
charg
-
ing
stud
(
26
)
,
Fig
.
2
,
to turn
the
driving
eccentric
'
(
25
)
,
Fig
.
2
.
Turning
the
driving
e
c c
e
n
t
r
i
c coun
te
rcl
oc
kwise
(
pu
shin
g
downward
on
the
ratchet wrench
)
,
will
advance
the
ratchet
wheel
(
22
)
and
com
-
-
•
*
'
press
the
closing
springs
.
WHEN
WORKING ON
THE
MECH
-
ANISM
IN
THE
CLOSED POSITION
,
KEEP
FINGERS
CLEAR
OF
THE
LINK
-
AGE
,
AS
ACCIDENTAL
TRIPPING
CAN
CAUSE
SEVERE
INJURY
.
Use
the
trip
latch
blocking
pin
tool
which
is
inserted
in
the
trip
latch block
-
ing
pin
hole
(
100
)
,
Fig
.
9
and
Fig
.
12
and
(
24
)
,
Fig
,
3
,
until
it
extends
beyond
the
opposite
frame
.
DO NOT
WORK
ON
EITHER THE
BREAKER
OR
MECHANISM
UNLESS
THE
CLOSING SPRINGS
AND
TRIP
-
LATCIi
ARE
BLOCKED
.
THIS
PRE
-
CAUTION
IS
REQUIRED
TO
PREVENT
ACCIDENTAL
CLOSING
OR
TRIP
-
PING
.
USE
THE
69
LOCK
-
OUT
SWITCH
IF
REMOTE
CONTROL
IS
USED
.
After
the
adjustments
have
been
checked
,
the
springs
can
be
unblocked
.
Rotate
the
driving
eccentric
(
25
)
,
Fig
.
2
,
until
the indicator
(
7
)
,
Fig
.
2
,
reads
“
CHARGED
”
and
the
ratchet
wheel
(
22
)
,
13
,
and
“
N
”
,
Fig
.
14
.
With
the
breaker
in
TRIP
LATCH
CLEARANCE
-
rc
Refer
to
Fig
,
12
,
and
to
“
R
”
,
Fig
,
6
Courtesy of NationalSwitchgear.com

Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
GEK
7153
will
lock the
eccentric
.
Tighten
the
lock
-
nuts
on
the
eccentric
after
adjusting
the
eccentric
.
o
PROP
CLEARANCE
Refer
to
(
38
)
,
Fig
.
10
,
and
to
“
V
”
Fig
.
13
.
With
the
breaker
closed
as
far
as
possible
,
that
is
,
with
the
springs
(
79
)
,
and
(
62
)
,
Fig
.
11
,
blocked
and the
cam
(
39
)
,
Fig
.
10
,
rotated
so
that
the
cam
follower
roller
shaft
(
68
)
is
at
its
maxi
-
mum
height
over
the
prop
(
38
)
,
the
clear
-
ance
between the
prop
and
cam
shaft
should
be
1
/
16
inch
to
5
/
32
inch
.
No
adjustment
is
provided
and
a
visual
inspection
is
usually
all
that
is
required
.
:
-
.
v
k
:
-
(
i
*
14
16
17
5
24
PROP
WIPE
ON
7
<
N
s
00
Refer
to
Fig
.
10
and
“
K
”
,
Fig
.
13
.
With
the
breaker closed
and
the
linkage
resting
on
the
closing
prop
(
38
)
,
Fig
.
10
,
the
prop
wipe
should
be
3
/
16
inch
to
3
/
8
inch
from
the
cam
follower
roller shaft
(
68
)
,
Fig
.
10
,
to
the
edge
of
the
prop
.
No
adjustment
is
provided
and
a
visual
inspection
is
usually
all that
is
required
.
3
CO
00
U
,
12
CLOSING
LATCII
WIPE
13
Refer
to
Fig
.
9
and
to
UX
”
Fig
.
15
.
The
wipe
between
the
closing
latch
(
8
)
and
the
closing
latch
roller
(
29
)
should be
3
/
16
inch
to
1
/
4
inch
.
If
resetting
is
required
,
loosen
,
set
,
and
retighten
the
adjustment
screw
(
10
)
,
then
tighten
the
locking
nut
(
11
)
.
1
.
Mechanism
House
2
.
House
Support
Bracket
3
.
Lock
-
out
Device
(
69
Switch
)
4
.
Manual
Trip
Lever
5
.
Manual
Trip
Push Rod
6
.
Trip
Latch
Clearance
Adjustment
Eccentric
1
,
.
.
^
Manual
Close
Push
Rod
8
,
Eccentric
9
.
Manual
Charging
Stud
.
(
5
/
8
inch
hex
)
10
.
Driving
Link
11
.
Right
Closing
Spring
12
.
Closing
Spring
Blocking
Device
13
.
Access
Plate
(
Customer
’
s
Wiring
)
14
.
Output
Crank
Main
Shaft
15
.
Output
Coupling
16
.
Latching
And
Safety
Pawls
17
.
Ratchet
Wheel
18
.
CamShaft
19
.
Guide
Block
20
.
Closing
Coil
(
52
CC
)
21
.
Closing
Coil
Plunger
Instruction
Book
23
.
Weatherstrip
24
.
Trip
Latch
Blocking
Pin
CLOSING
LATCH
MONITORING
SWITCH
Refer
to
Fig
.
9
and
to
“
T
”
,
Fig
.
13
.
The
closing
latch
(
8
)
must
be
fully
reset
and
the
closing
latch
monitoring
switch
(
16
)
operated
before
the
motor
(
34
)
will
start
.
The
closing
latch
monitoring
switch
should
be
wiped
by
the
operating
lever
(
23
)
,
Fig
.
2
,
so
that
the
clearance
be
-
tween
the
operating
lever
and the
switch
mounting
bracket
(
8
)
,
Fig
.
6
,
is
0.005
to
0.032
inch
.
To
obtain
this
adjustment
bend
the
monitoring
switch
operating
the
tripped
position
and the
closing
locknut
(
84
)
,
Fig
.
12
,
at
the
trip
latch
Jcver
as
necessary
.
Be
sure
the
latch
is
springs
(
12
)
and
(
28
)
,
Fig
.
2
,
charged
,
clearance
adjustment
eccentric
(
6
)
,
Fig
.
3
,
reset
before
making
any
ad
-
check the
clearance
between
the
trip
with the
breaker
in
the
tripped
position
,
justments
.
latch
(
50
)
,
Fig
.
11
,
and
the
trip
latch
Adjust
the
eccentric
(
25
)
,
Fig
.
2
,
as
neces
-
roller
(
52
)
,
It
should
measure
1
/
32
inch
sary
.
Adjust
the
trip
latch
clearance
by
to
3
/
32
inch
.
turning
the
eccentric
in
a
clockwise direc
-
~
.
.
.
,
.
.
,
t
tion
while
decreasing
the clearance
.
This
To
change
the
adjustment
loosen
the
22
.
.
Fig
.
3
Right
Side
View
of
Mechanism
MOTOR
LIMIT
SWITCHES
Refer
to
Fig
.
9
and
to
“
Z
”
,
Fig
.
15
.
With
the
closing
springs
blocked
rotate
7
Courtesy of NationalSwitchgear.com

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
X
-
fnmJi
/
-
T
\
<
N
PO
w
.
Trip
Latch
Checking
Switch
Trip
Latch
Shaft
Charge
-
discharge
Indicator
Linkage
Charge
-
discharge
Indicator
Switch
Support
Bolts
Motor
Limit
Switch
Support
Motor
Limit
Switches
Motor
Limit
Switch
Striker
Closing
Latch
Control
Panel
Control
House
Heater
Circuit
Fused
Pullout
Cutoff
and
Anti
-
pump
Relay
(
52
Y
)
Trip
Latch
Blocking
Pin
Motor
Circuit
Fused
Pullout
(
When
Required
)
19
.
20
.
21
.
1
,
Output
Coupling
2
*
Limit
Switch
Cam
3
.
CamShaft
4
.
Closing
Circuit
'
Fused
Pullout
5
.
Trip
Circuit
Fused
Pullout
6
.
Terminal
Boards
7
.
Control
House
Heater
8
.
House
Support
Bracket
9
.
Auxiliary
Switch
10
.
Prop
Reset
Spring
Fig
.
4
Left
View
of
Mechanism
22
.
23
.
24
,
8
Courtesy of NationalSwitchgear.com

Spring
charged
Operating
Mechanism
Type
ML
-
14
-
0
GEK
7153
Ui
%
u
«
.•
:
w
.
\
'
.
s
*
>
.
>
••
.
*
:
vr
•
r
V
-
’
*
/
-
*
N
00
00
<
N
s
00
W
>
*
3
*
*
*
/
*
-
V
v
.
'
•
C
:
>
s
-
r
-
<
»
»
»
.
^
-
-
0
••
-
X
*
-
I
.
Manual
Close
Push
Rod
Spring
-
charging
Motor
Ratchet
Wheel
Driving
Pawl
Motor
Mounting
Bolts
1
.
6
.
Eccentric
7
.
Manual
Charging
Stud
(
5
/
8
Inch
Hex
)
8
.
Driving
Link
9
.
Motor
Support
and
Bearing
Housing
2
.
3
.
4
.
5
.
Fig
,
5
Driving
Elements
9
Courtesy of NationalSwitchgear.com

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
W
o
oo
ON
CO
'
w
'
NO
oh
>
«
*
r
1
-
~
'
V
*
«
.
$
)
6
.
Manual
Charging
Stud
and
Wrench
7
.
Driving
Link
8
.
Monitoring
Switch
Mounting
Bracket
9
.
Closing
Coil
(
52
CC
)
10
,
Closing
Coil
Plunger
1
.
Motor
Support
Bolts
2
.
Driving
Motor
3
.
Closing
Latch
Monitoring
Switch
4
.
Ratchet
Wheel
5
.
Eccentric
Fig
.
6
Closing
Devices
is
closed
,
No
adjustment
is
provided
and
a
visual
inspection
is
usually
all
that
is
required
.
If
for
some
reason
the
auxiliary
switch
is
removed
it
must
be
properly
reinstalled
.
The
“
V
”
stamped
on
the
SB
*
12
auxiliary
switch
shaft
must
point
toward
the
switch
terminals
or
180
degrees
away
from
the
terminals
to
pre
-
vent
overlap
of
the
contacts
.
If
“
a
”
and
“
b
”
contacts
overlap
somewhat
during
the
breaker
stroke
the
auxiliary
switch
is
assembled
incorrectly
and
must
be
properly
reset
,
Remove
the
switch
oper
-
ator
from
the
square
shaft
.
Rotate
the
square
shaft
until
the
arrow
on
the
end
of
the
shaft
is
pointing
toward
the
upper
front
corner
of
the
switch
mounting
plate
with
the
breaker
in
the
open
position
.
Install
the
switch
operator
and
make
certain
there
is
no
overlap
between
the
“
a
”
and
“
b
”
contacts
during
the
breaker
stroke
.
er
stroke
is
increased
by
lowering
the
dashpots
and
/
or
the
toggle
setting
at
its
minimum
(
FKA
)
and
/
or
internal
stops
at
their
minimums
(
FK
)
and
/
or
shortening
of
the
vertical
operating
rod
.
AUXILIARY
SWITCH
-
TYPE
SB
-
12
Refer
to
Fig
.
11
and
to
“
L
”
,
Fig
.
15
.
The
auxiliary
switch
(
19
)
,
Fig
.
11
,
is
mounted
on
the
left
side
of
the
operating
mechanism
frame
(
2
)
.
The
linkage
(
59
)
attached
to
the
pin
(
40
)
,
Fig
.
10
,
of
the
output
crank
(
4
)
operates
the
auxiliary
switch
shaft
which
opens
and
closes
the
“
a
”
and
"
b
”
contacts
.
The
“
a
”
contacts
are
open
when
the
breaker
is
open
and
the
“
b
”
contacts
are
open
when
the
breaker
is
closed
.
The
“
a
”
contacts
need
only
to
be
checked
to
make
certain
they
are
open
when
the
breaker
is
open
.
The
“
b
”
contacts
need
only
to
be
checked
to
see
that
they
are
open
when
the
breaker
the
switch
cam
(
6
)
until
the
motor
limit
switch
striker
(
26
)
has
traveled
the
maximum
amount
(
about
180
degrees
rotation
of
the
cam
)
.
Loosen
the
mounting
bolt
(
28
)
and
rotate
the
switch
support
(
16
)
,
Fig
.
4
,
until
the
gap
be
-
tween
the
motor
limit
switch
striker
(
26
)
,
Fig
.
9
,
and
the
switch
support
(
16
)
,
Fig
.
4
,
is
0.032
to
0.005
inch
.
CLOSING
CAM
CLEARANCE
Refer
to
Fig
.
18
.
The
sum
of
"
C
”
plus
“
R
”
should
not
exceed
0
,
170
inch
.
This
clearance
is
affected
by
the
adjust
-
ment
of
the
breaker
opening
dashpots
,
toggle
setting
(
FKA
)
,
internal
stops
(
FK
)
,
and
vertical
operating
rod
length
.
Normal
-
ly
no
adjustment
is
required
;
however
,
this
clearance
should
be
checked
if
the
breaker
settings
are
changed
,
The
closing
cam
clearance
is
reduced
when
the
break
-
10
Courtesy of NationalSwitchgear.com