GE ML-14-0 - TRIP SWITCHES AND COILS; TRIP LATCH CHECKING SWITCH; TRIP COIL PLUNGER

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
This
can
also
be
checked
by
mea
-
suring
the
distance
between
the
bottom
of
the
latching
and
safety
adjustment
screw
and
the
top
surface
of
the
latching
pawl
when
the
closing
springs
are
com
-
pletely
charged
.
TRIP
LATCH
CHECKING
SWITCH
Refer
to
Fig
,
10
and
to
“
Y
”
and
“
W
”
,
Fig
.
15
.
Rotate
the
trip
latch
(
50
)
,
Fig
.
10
,
clockwise
(
looking
at
the
left
side
of
the
mechanism
)
by
pressing
the
manual
trip
lever
(
17
)
,
Fig
.
7
,
to
open
the
latch
checking
switch
operating
lever
(
23
)
,
Fig
.
9
.
Allow
the
trip
latch
to
reset
slowly
and
determine
the
point
at
which
the
contacts
of
the
trip
latch
checking
switch
(
22
)
make
by
using
a
circuit
continuity
tester
,
such
as
a
light
indicator
or
bell
set
.
The
contacts
of
the
trip
latch
checking
switch
should
just
make
when
there
is
a
1
/
16
inch
gap
between
the
trip
latch
(
50
)
,
Fig
.
10
,
and
the
stop
pin
(
53
)
located
on
the
trip
latch
assembly
sup
-
port
link
(
55
)
.
There
should
be
a
min
-
imum
of
1
/
64
inch
between
the
operating
lever
(
5
)
,
Fig
.
7
,
and
the
trip
latch
checking
switch
(
22
)
,
Fig
.
9
.
Bend
the
trip
latch
checking
switch
operating
lever
(
23
)
,
Fig
.
9
,
as
necessary
to
adjust
.
/
T
*
\
>
&
EN
8
HEAD
BOLT
XJ
§
£
s
o
*
>
CO
8
X
3
CO
TRIP
COIL
PLUNGER
to
Refer
to
Fig
.
10
and
“
S
’
\
Fig
,
13
.
The
plunger
(
43
)
of
the
trip
coil
(
42
)
must
have
a
minimum
of
1
/
8
inch
free
travel
before
the
trip
latch
(
50
)
starts
to
move
to
provide
proper
tripping
at
reduced
voltages
.
This
is
adjusted
by
loosening
the
Allen
set
screw
which
is
located
in
the
trip
latch
shaft
(
24
)
.
This
set
screw
bears
against
the
Allen
head
bolt
(
71
)
,
Fig
.
11
,
securing
the
bolt
in
place
.
Rotate
the
trip
crank
(
48
)
,
Fig
.
10
,
about
the
trip
latch
shaft
until
the
correct
free
travel
of
the
trip
coil
plunger
is
obtained
.
Adjust
the
Allen
head
bolt
to
contact
the
trip
crank
at
this
point
.
Install
the
Allen
screw
from
the
front
side
of
the
trip
latch
shaft
from
the
front
side
of
the
trip
latch
shaft
then
tighten
the
Allen
head
adjusting
bolt
(
71
)
,
Fig
.
11
*
This
free
travel
must
be
sufficient
so
that
the
breaker
is
able
to
trip
at
its
minimum
trip
voltage
.
The
values
are
in
a
chart
under
FINAL
INSPECTION
.
tea
&
Fig
.
13
Adjustment
and
Final
Clearance
Checks
18
Courtesy of NationalSwitchgear.com