GE AM-4.16-250-6 - Page 13

Magne
-
blast
Circuit
Breaker
GEI
-
88761
i
k
2
3
m
Figure
14
.
(
8034464
)
Plunger
Interlock
1
.
Plunger
Bolt
Washer
Breaker
Lifting
Rail
Figure
13
.
(
0114
C
5320
)
Latch
Checking
Switch
Switch
Support
2
.
Latch
Checking
Switch
3
.
Switch
Arm
Trip
Latch
5
.
Reset
Pin
Stop
6
.
Latch
Roller
7
.
Latch
Roller
Link
8
.
Latch
Roller
Pin
1
.
4
.
II
to
open
the
latch
checking
switch
(
2
)
.
Allow
the
trip
latch
to
reset
slowly
and
determine
the
point
at
which
the
contacts
are
made
by
using
a
circuit
continuity
tester
(
light
indicator
,
bell
set
,
etc
)
.
The
contacts
of
the
latch
checking
switch
should
just
make
when
the
g
(
4
)
and
the
stop
pin
(
5
)
link
(
7
)
is
1
/
16
"
.
1
/
64
"
between
the
switch
arm
(
3
)
and
the
switch
support
(
1
)
.
To
obtain
adjustment
of
the
latch
check
-
switch
,
bend
the
latch
checking
switch
arm
Figure
15
.
(
8034471
)
Driving
Elements
1
.
Mounting
Bolts
Manual
Close
Button
Eccentric
Retaining
Ring
5
.
Hex
Charging
Stud
6
.
Driving
Link
Motor
Support
Retaining
Ring
9
.
Motor
10
.
Fuse
2
.
ap
between
the
trip
latch
located
on
the
latch
roller
There
should
be
a
minimum
of
3
.
4
.
7
.
8
.
mg
(
3
)
.
Plunger
Interlock
§
,
,
,
Refer
to
Figure
14
.
With
the
breaker
in
the
closed
position
,
the
vertical
distance
”
A
”
from
the
top
of
the
plunger
bolt
(
1
)
to
the
bottom
of
the
breaker
lifting
rail
(
3
)
should
be
16
-
19
/
32
”
to
16
-
23
/
32
”
.
To
change
this
adjustment
,
add
or
remove
washers
(
2
)
.
Inspection
and
Test
1
.
For
ease
in
reviewing
the
adjustments
,
the
following
are
recapitulated
:
Primary
contact
wipe
:
1
/
4
”
to
5
/
16
”
.
Arcing
contact
wipe
:
5
/
16
”
or
greater
gap
at
primary
contacts
.
Primary
contact
gap
:
3
-
5
/
8
”
to
3
-
15
/
167
Trip
latch
wipe
:
3
/
16
”
to
1
/
4
”
with
trip
latch
resting
against
stop
pin
.
Trip
armature
travel
7
/
32
”
to
9
/
32
”
.
Release
latch
wipe
:
3
/
16
”
to
1
/
4
”
.
Release
latch
monitoring
switch
:
Max
-
imum
clearance
1
/
32
”
.
a
.
b
.
Auxiliary
Fuses
c
.
Refer
to
Figure
15
.
On
breakers
with
a
”
C
”
or
”
K
”
suffix
,
a
set
of
protecting
fuses
(
10
)
are
mounted
igj
^
on
the
front
of
the
breaker
.
These
fuses
are
the
primary
protective
devices
for
the
closing
control
circuit
on
those
breakers
that
are
used
in
metal
-
clad
units
designed
for
solenoidoperatedbreakers
*
d
.
e
.
I
f
.
g
.
13
Courtesy of NationalSwitchgear.com