GE AK-1-15 Series - Page 22

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96
GBSH
-
1807
Air
Circuit
Breakers
Type
AK
-
1
-
15
and
AK
-
4
-
25
6
.
Check
overtravel
of
trip
arm
(
19
)
.
If
ad
-
justment
is
necessary
,
ilwhouldbcdonenaw
,
when
'
Bite
adjustment
screws
nr
©
accessible
,
rather
than
after
the
breaker
is
completely
reassembled
.
^
AJXI
USTM
1
SN
TS
,
FIG
,
17
Calibration
clamping
nuts
(
14
)
are
used
to
set
the
desired
pickup
for
the
adjustable
elements
*
In
order
to
Insure
positive
tripping
by
the
over
-
current
trip
device
,
,
the
trip
arm
,
(
19
)
Fig
-
17
,
must
have
a
minimum
of
1
/
32
’
*
overtravel
beyond
the
point
at
which
Urn
breaker
trips
*
In
,
order
to
check
this
overt
ravel
,
a
probe
may
be
used
as
Ulus
*
*
trated
in
Fig
*
13
,
the
overtravel
distance
toeing
considered
at
the
point
of
"
contact
between
the
trip
arm
and
the
adjusting
screw
of
the
trip
paddle
,
(
18
)
Fig
.
17
,
Adjustment
of
over
travel
is
made
by
meftAs
of
tho
adjusting
screw
in
the
trip
paddle
on
the
trip
shaft
*
The
screw
in
tho
trip
arm
Is
not
intended
for
adjustment
purposes
.
7
,
Complete
line
reassembly
of
the
breaker
*
NOTE
.
*
NO
component
parts
of
the
overcurrent
tripping
device
a
are
replaced
.
It
will
be
necessary
to
install
a
new
device
when
parte
are
worn
or
damaged
*
CURRENT
IN
TIMES
BREAKER
RATING
£
3
*
!
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*
10
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stance
of
Trip
Ann
on
Berlcn
Gvercurnw
-
t
Tripping
Device
T
M f c
*
t
'
fT
CURRENT
IN
TIMES
BREAKER
RATING
flfl
*
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-
Curr
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nt
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of
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tv
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u
.
BJEPI
^
CEMENT
1
*
Follow
steps
2
to
11
inclusive
of
procedure
for
replacing
breaker
meclmnlsm
,
2
*
Remove
tho
bote
holding
the
coil
to
the
lower
stuck
3
.
Remove
bracket
and
mounting
ttcrewe
*
4
.
Before
installing
a
new
device
,
check
tho
travel
of
the
trip
arm
with
a
rod
or
wire
and
push
the
armature
solidly
against
dm
magnet
(
see
Fig
,
IB
)
.
Tho
trip
arm
should
move
at
least
&
/
82
,
r
.
if
there
insufficient
movement
of
the
$
:
•
!
REVERSE
CURRENT
TRIPPING
DEVICE
Tho
sb
'
riee
is
enclosed
in
a
molded
ease
mvd
is
mounted
"
on
the
right
pole
base
similarly
to
the
aeries
overcurrent
tripping
device
,
The
reverse
current
tripping
device
(
see
Fig
.
20
)
consifiita
"
of
a
series
coil
(
1
)
with
an
iron
core
mounted
between
two
pole
pieces
(
7
)
,
also
a
paten
-
Util
coil
(
4
)
Connected
across
a
constant
source
of
J
]
voltage
and
mounted
around
n
rotary
-
type
&
ra
&
»
*
ture
(
0
)
,
:
Calibration
spring
(
3
)
determines
the
armature
pick
-
up
when
a
reversal
o
£
current
occurs
.
ears
to
be
arm
,
or
If
Die
armature
appears
to
be
binding
,
the
device
should
not
be
used
.
,
6
,
Mount
new
trip
device
cm
pole
unit
*
Be
sure
that
alien
bead
bolts
which
fasten
series
coil
(
Jt
)
are
not
cross
-
threaded
and
arc
firmly
tightened
down
,
ff
there
is
not
good
contact
pressure
against
the
©
bud
,
overheat
-
ing
and
burning
may
result
.
a
|
jpii
trip
n
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